Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / WinForms / Managed / System / WinForms / PropertyGridInternal / PropertyGridView.cs / 1555735 / PropertyGridView.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
/*
*/
namespace System.Windows.Forms.PropertyGridInternal {
using System.Security.Permissions;
using System.Runtime.Serialization.Formatters;
using System.Threading;
using System.Runtime.InteropServices;
using System.Runtime.Remoting;
using System.Runtime.Versioning;
using System.ComponentModel;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System;
using System.Collections;
using System.Windows.Forms;
using System.Windows.Forms.Internal;
using System.Windows.Forms.ComponentModel;
using System.Windows.Forms.Design;
using System.ComponentModel.Design;
using System.Windows.Forms.VisualStyles;
using System.IO;
using System.Drawing;
using System.Drawing.Design;
using Microsoft.Win32;
using Message = System.Windows.Forms.Message;
using System.Drawing.Drawing2D;
internal class PropertyGridView :
Control,
IWin32Window,
IWindowsFormsEditorService,
IServiceProvider {
protected static readonly Point InvalidPoint = new Point(int.MinValue, int.MinValue);
#if true // RENDERMODE
public const int RENDERMODE_LEFTDOT = 2;
public const int RENDERMODE_BOLD = 3;
public const int RENDERMODE_TRIANGLE = 4;
public static int inheritRenderMode = RENDERMODE_BOLD;
#endif
public static TraceSwitch GridViewDebugPaint = new TraceSwitch("GridViewDebugPaint", "PropertyGridView: Debug property painting");
private PropertyGrid ownerGrid; // the properties window host.
#if true // RENDERMODE
private const int LEFTDOT_SIZE = 4;
#endif
// constants
protected const int EDIT_INDENT = 0;
protected const int OUTLINE_INDENT = 10;
protected const int OUTLINE_SIZE = 9;
protected const int OUTLINE_SIZE_EXPLORER_TREE_STYLE = 16;
protected const int PAINT_WIDTH = 20;
protected const int PAINT_INDENT = 26;
protected const int ROWLABEL = 1;
protected const int ROWVALUE = 2;
protected const int MAX_LISTBOX_HEIGHT = 200;
protected const short ERROR_NONE = 0;
protected const short ERROR_THROWN = 1;
protected const short ERROR_MSGBOX_UP = 2;
internal const short GDIPLUS_SPACE = 2;
internal const int MaxRecurseExpand = 10;
protected static readonly Point InvalidPosition = new Point(int.MinValue, int.MinValue);
// colors and fonts
private Brush backgroundBrush = null;
private Font fontBold = null;
// property collections
private GridEntryCollection topLevelGridEntries = null; // top level props
private GridEntryCollection allGridEntries = null; // cache of viewable props
// row information
internal int totalProps = -1; // # of viewable props
private int visibleRows = -1; // # of visible rows
private int labelWidth = -1;
public double labelRatio = 2; // ratio of whole row to label width
private short requiredLabelPaintMargin = GDIPLUS_SPACE;
// current selected row and tooltip.
private int selectedRow = -1;
private GridEntry selectedGridEntry = null;
private int tipInfo = -1;
// editors & controls
private GridViewEdit edit = null;
private DropDownButton btnDropDown = null;
private DropDownButton btnDialog = null;
private GridViewListBox listBox = null;
private DropDownHolder dropDownHolder = null;
private Rectangle lastClientRect = Rectangle.Empty;
private Control currentEditor = null;
private ScrollBar scrollBar = null;
internal GridToolTip toolTip = null;
private GridErrorDlg errorDlg = null;
// flags
private const short FlagNeedsRefresh = 0x0001;
private const short FlagIsNewSelection = 0x0002;
private const short FlagIsSplitterMove = 0x0004;
private const short FlagIsSpecialKey = 0x0008;
private const short FlagInPropertySet = 0x0010;
private const short FlagDropDownClosing = 0x0020;
private const short FlagDropDownCommit = 0x0040;
private const short FlagNeedUpdateUIBasedOnFont = 0x0080;
private const short FlagBtnLaunchedEditor = 0x0100;
private const short FlagNoDefault = 0x0200;
private const short FlagResizableDropDown = 0x0400;
private short flags = FlagNeedsRefresh | FlagIsNewSelection | FlagNeedUpdateUIBasedOnFont;
private short errorState = ERROR_NONE;
private Point ptOurLocation = new Point(1,1);
private string originalTextValue = null; // original text, in case of ESC
private int cumulativeVerticalWheelDelta = 0;
private long rowSelectTime = 0;
private Point rowSelectPos = Point.Empty; // the position that we clicked on a row to test for double clicks
private Point lastMouseDown = InvalidPosition;
private int lastMouseMove;
private GridEntry lastClickedEntry;
private IServiceProvider serviceProvider;
private IHelpService topHelpService;
private IHelpService helpService;
private EventHandler ehValueClick;
private EventHandler ehLabelClick;
private EventHandler ehOutlineClick;
private EventHandler ehValueDblClick;
private EventHandler ehLabelDblClick;
private GridEntryRecreateChildrenEventHandler ehRecreateChildren;
private int cachedRowHeight = -1;
IntPtr baseHfont;
IntPtr boldHfont;
[
SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters") // PropertyGridView's caption is not visible.
// So we don't have to localize its text.
]
public PropertyGridView(IServiceProvider serviceProvider, PropertyGrid propertyGrid)
: base() {
this.ehValueClick = new EventHandler(this.OnGridEntryValueClick);
this.ehLabelClick = new EventHandler(this.OnGridEntryLabelClick);
this.ehOutlineClick = new EventHandler(this.OnGridEntryOutlineClick);
this.ehValueDblClick = new EventHandler(this.OnGridEntryValueDoubleClick);
this.ehLabelDblClick = new EventHandler(this.OnGridEntryLabelDoubleClick);
this.ehRecreateChildren = new GridEntryRecreateChildrenEventHandler(this.OnRecreateChildren);
ownerGrid = propertyGrid;
this.serviceProvider = serviceProvider;
SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
SetStyle(ControlStyles.ResizeRedraw, false);
SetStyle(ControlStyles.UserMouse, true);
// properties
BackColor = SystemColors.Window;
ForeColor = SystemColors.WindowText;
backgroundBrush = SystemBrushes.Window;
TabStop = true;
this.Text = "PropertyGridView";
CreateUI();
LayoutWindow(true);
}
public override Color BackColor {
get {
return base.BackColor;
}
set {
this.backgroundBrush = new SolidBrush(value);
base.BackColor = value;
}
}
internal Brush GetBackgroundBrush(Graphics g) {
return backgroundBrush;
}
[Browsable(false), EditorBrowsable(EditorBrowsableState.Advanced)]
public bool CanCopy {
get {
if (selectedGridEntry == null) {
return false;
}
if (!Edit.Focused) {
string val = selectedGridEntry.GetPropertyTextValue();
return val != null && val.Length > 0;
}
return true;
}
}
[Browsable(false), EditorBrowsable(EditorBrowsableState.Advanced)]
public bool CanCut {
get {
return CanCopy && selectedGridEntry.IsTextEditable;
}
}
[Browsable(false), EditorBrowsable(EditorBrowsableState.Advanced)]
public bool CanPaste {
get {
return selectedGridEntry != null && selectedGridEntry.IsTextEditable; // return gridView.CanPaste;
}
}
[Browsable(false), EditorBrowsable(EditorBrowsableState.Advanced)]
public bool CanUndo {
get {
if (!Edit.Visible || !Edit.Focused) {
return false;
}
return (0 != (int)Edit.SendMessage(NativeMethods.EM_CANUNDO, 0, 0));
}
}
private DropDownButton DropDownButton {
get {
if (btnDropDown == null) {
#if DEBUG
if (ownerGrid.inGridViewCreate) {
throw new Exception("PERF REGRESSION - Creating item in grid view create");
}
#endif
btnDropDown = new DropDownButton();
btnDropDown.UseComboBoxTheme = true;
Bitmap bitmap = CreateDownArrow();
btnDropDown.Image = bitmap;
btnDropDown.BackColor = SystemColors.Control;
btnDropDown.ForeColor = SystemColors.ControlText;
btnDropDown.Click += new EventHandler(this.OnBtnClick);
// btnDropDown.MouseUp += new MouseEventHandler(this.OnBtnMouseUp);
// btnDropDown.MouseDown += new MouseEventHandler(this.OnBtnMouseDown);
btnDropDown.LostFocus += new EventHandler(this.OnChildLostFocus);
btnDropDown.TabIndex = 2;
CommonEditorSetup(btnDropDown);
btnDropDown.Size = new Size(SystemInformation.VerticalScrollBarArrowHeight, RowHeight);
}
return btnDropDown;
}
}
private Button DialogButton {
get {
if (btnDialog == null) {
#if DEBUG
if (ownerGrid.inGridViewCreate) {
throw new Exception("PERF REGRESSION - Creating item in grid view create");
}
#endif
btnDialog = new DropDownButton();
btnDialog.BackColor = SystemColors.Control;
btnDialog.ForeColor = SystemColors.ControlText;
btnDialog.TabIndex = 3;
btnDialog.Image = new Bitmap(typeof(PropertyGrid), "dotdotdot.png");
btnDialog.Click += new EventHandler(this.OnBtnClick);
//btnDialog.MouseUp += new MouseEventHandler(this.OnBtnMouseUp);
//btnDialog.MouseDown += new MouseEventHandler(this.OnBtnMouseDown);
btnDialog.KeyDown += new KeyEventHandler(this.OnBtnKeyDown);
btnDialog.LostFocus += new EventHandler(this.OnChildLostFocus);
btnDialog.Size = new Size(SystemInformation.VerticalScrollBarArrowHeight, RowHeight);
CommonEditorSetup(btnDialog);
}
return btnDialog;
}
}
private GridViewEdit Edit {
get{
if (edit == null) {
#if DEBUG
if (ownerGrid.inGridViewCreate) {
throw new Exception("PERF REGRESSION - Creating item in grid view create");
}
#endif
edit = new GridViewEdit(this);
edit.BorderStyle = BorderStyle.None;
edit.AutoSize = false;
edit.TabStop = false;
edit.AcceptsReturn = true;
edit.BackColor = BackColor;
edit.ForeColor = ForeColor;
edit.KeyDown += new KeyEventHandler(this.OnEditKeyDown);
edit.KeyPress += new KeyPressEventHandler(this.OnEditKeyPress);
edit.GotFocus += new EventHandler(this.OnEditGotFocus);
edit.LostFocus += new EventHandler(this.OnEditLostFocus);
edit.MouseDown += new MouseEventHandler(this.OnEditMouseDown);
edit.TextChanged += new EventHandler(this.OnEditChange);
//edit.ImeModeChanged += new EventHandler(this.OnEditImeModeChanged);
edit.TabIndex = 1;
CommonEditorSetup(edit);
}
return edit;
}
}
private GridViewListBox DropDownListBox {
get {
if (listBox == null) {
#if DEBUG
if (ownerGrid.inGridViewCreate) {
throw new Exception("PERF REGRESSION - Creating item in grid view create");
}
#endif
listBox = new GridViewListBox(this);
listBox.DrawMode = DrawMode.OwnerDrawFixed;
//listBox.Click += new EventHandler(this.OnListClick);
listBox.MouseUp += new MouseEventHandler(this.OnListMouseUp);
listBox.DrawItem += new DrawItemEventHandler(this.OnListDrawItem);
listBox.SelectedIndexChanged += new EventHandler(this.OnListChange);
listBox.KeyDown += new KeyEventHandler(this.OnListKeyDown);
listBox.LostFocus += new EventHandler(this.OnChildLostFocus);
listBox.Visible = true;
listBox.ItemHeight = RowHeight;
}
return listBox;
}
}
internal bool DrawValuesRightToLeft {
get {
if (edit != null && edit.IsHandleCreated) {
int exStyle = unchecked((int)((long)UnsafeNativeMethods.GetWindowLong(new HandleRef(edit, edit.Handle), NativeMethods.GWL_EXSTYLE)));
return ((exStyle & NativeMethods.WS_EX_RTLREADING) != 0);
}
else {
return false;
}
}
}
public bool FocusInside {
get {
return(this.ContainsFocus || (dropDownHolder != null && dropDownHolder.ContainsFocus));
}
}
internal Color GrayTextColor{
get {
if (this.ForeColor.ToArgb() == SystemColors.WindowText.ToArgb()) {
return SystemColors.GrayText;
}
// compute the new color by halving the value of the old one.
//
int colorRGB = this.ForeColor.ToArgb();
int alphaValue = (colorRGB >> 24) & 0xff;
if (alphaValue != 0) {
alphaValue /= 2;
colorRGB &= 0xFFFFFF;
colorRGB |= (int)((alphaValue << 24) & 0xFF000000);
}
else {
colorRGB /= 2;
}
return Color.FromArgb(colorRGB);
}
}
private GridErrorDlg ErrorDialog {
get {
if (this.errorDlg == null) {
errorDlg = new GridErrorDlg(this.ownerGrid);
}
return errorDlg;
}
}
private bool HasEntries {
get{
return topLevelGridEntries != null && topLevelGridEntries.Count > 0;
}
}
protected int InternalLabelWidth {
get {
if (GetFlag(FlagNeedUpdateUIBasedOnFont)) {
UpdateUIBasedOnFont(true);
}
if (labelWidth == -1) {
SetConstants();
}
return labelWidth;
}
}
internal int LabelPaintMargin {
set {
requiredLabelPaintMargin = (short)Math.Max(Math.Max(value, requiredLabelPaintMargin), GDIPLUS_SPACE);
}
}
protected bool NeedsCommit{
get {
string text;
if (edit==null || !Edit.Visible) {
return false;
}
text = Edit.Text;
if (((text == null || text.Length == 0) && (originalTextValue == null || originalTextValue.Length == 0)) ||
(text != null && originalTextValue != null && text.Equals(originalTextValue))) {
return false;
}
return true;
}
}
public PropertyGrid OwnerGrid{
get{
return this.ownerGrid;
}
}
protected int RowHeight {
get {
if (cachedRowHeight == -1) {
cachedRowHeight = (int)Font.Height + 2;
}
return cachedRowHeight;
}
}
///
/// Returns a default location for showing the context menu. This
/// location is the center of the active property label in the grid, and
/// is used useful to position the context menu when the menu is invoked
/// via the keyboard.
///
public Point ContextMenuDefaultLocation {
get {
// get the rect for the currently selected prop name, find the middle
Rectangle rect = GetRectangle( selectedRow, ROWLABEL );
Point pt = PointToScreen( new Point( rect.X, rect.Y ) );
return new Point(pt.X + (rect.Width / 2), pt.Y + (rect.Height / 2));
}
}
private ScrollBar ScrollBar {
get {
if (scrollBar == null) {
#if DEBUG
if (ownerGrid.inGridViewCreate) {
throw new Exception("PERF REGRESSION - Creating item in grid view create");
}
#endif
scrollBar = new VScrollBar();
scrollBar.Scroll += new ScrollEventHandler(this.OnScroll);
Controls.Add(scrollBar);
}
return scrollBar;
}
}
internal GridEntry SelectedGridEntry {
get {
return selectedGridEntry;
}
set {
if (allGridEntries != null) {
foreach (GridEntry e in allGridEntries) {
if (e == value) {
SelectGridEntry(value, true);
return;
}
}
}
GridEntry gr = FindEquivalentGridEntry(new GridEntryCollection(null, new GridEntry[]{value}));
if (gr != null) {
SelectGridEntry(gr, true);
return;
}
throw new ArgumentException(SR.GetString(SR.PropertyGridInvalidGridEntry));
}
}
/*
public PropertyDescriptor SelectedPropertyDescriptor {
get {
if (selectedGridEntry != null && (selectedGridEntry is PropertyDescriptorGridEntry)) {
return ((PropertyDescriptorGridEntry) selectedGridEntry).PropertyDescriptor;
}
else {
return null;
}
}
}
*/
/*
///
/// Returns the currently selected property name.
/// If no property or a category name is selected, "" is returned.
/// If the category is a sub property, it is concatenated onto its
/// parent property name with a ".".
///
public string SelectedPropertyName {
get {
if (selectedGridEntry == null) {
return "";
}
GridEntry gridEntry = selectedGridEntry;
string name = "";
while (gridEntry != null && gridEntry.PropertyDepth >= 0) {
if (name.Length > 0) {
name = gridEntry.PropertyName + "." + name;
}
else {
name = gridEntry.PropertyName;
}
gridEntry = gridEntry.ParentGridEntry;
}
return name;
}
set{
if (value==null){
return;
}
if (value.Equals(selectedGridEntry.PropertyLabel)){
return;
}
string curName;
string remain = value;
int dot = remain.IndexOf('.');
GridEntry[] ipes = GetAllGridEntries();
int pos = 0;
while (dot != -1){
curName = remain.Substring(0, dot);
Debug.WriteLine("Looking for: " + curName);
for (int i = pos; i < ipes.Length ; i++){
Debug.WriteLine("Checking : " + ipes[i].PropertyLabel);
if (ipes[i].PropertyLabel.Equals(curName)){
if (ipes[i].Expandable){
pos = i;
remain = remain.Substring(dot + 1);
dot = remain.IndexOf('.');
if (dot != -1){
Debug.WriteLine("Expanding: " + ipes[i].PropertyLabel);
ipes[i].SetPropertyExpand(true);
ipes = GetAllGridEntries();
break;
}
else{
SelectGridEntry(ipes[i], true);
return;
}
}
}
}
// uh oh
dot = -1;
}
// oops, didn't find it
SelectRow(0);
return;
}
}
*/
///
/// Returns or sets the IServiceProvider the PropertyGridView will use to obtain
/// services. This may be null.
///
public IServiceProvider ServiceProvider {
get {
return serviceProvider;
}
set {
if (value != serviceProvider) {
this.serviceProvider = value;
topHelpService = null;
if (helpService != null && helpService is IDisposable)
((IDisposable)helpService).Dispose();
helpService = null;
}
}
}
private int TipColumn {
get{
return(tipInfo & unchecked((int)0xFFFF0000)) >> 16;
}
set{
// clear the column
tipInfo &= 0xFFFF;
// set the row
tipInfo |= ((value & 0xFFFF) << 16);
}
}
private int TipRow {
get{
return tipInfo & 0xFFFF;
}
set{
// clear the row
tipInfo &= unchecked((int)0xFFFF0000);
// set the row
tipInfo |= (value & 0xFFFF);
}
}
private GridToolTip ToolTip {
get {
if (toolTip == null) {
#if DEBUG
if (ownerGrid.inGridViewCreate) {
throw new Exception("PERF REGRESSION - Creating item in grid view create");
}
#endif
toolTip = new GridToolTip(new Control[]{this, Edit});
toolTip.ToolTip = "";
toolTip.Font = this.Font;
}
return toolTip;
}
}
internal GridEntryCollection AccessibilityGetGridEntries() {
return GetAllGridEntries();
}
internal Rectangle AccessibilityGetGridEntryBounds(GridEntry gridEntry) {
int row = GetRowFromGridEntry(gridEntry);
if (row == -1) {
return new Rectangle(0, 0, 0, 0);
}
Rectangle rect = GetRectangle(row, ROWVALUE | ROWLABEL);
// Translate rect to screen coordinates
//
NativeMethods.POINT pt = new NativeMethods.POINT(rect.X, rect.Y);
UnsafeNativeMethods.ClientToScreen(new HandleRef(this, Handle), pt);
return new Rectangle(pt.x, pt.y, rect.Width, rect.Height);
}
internal int AccessibilityGetGridEntryChildID(GridEntry gridEntry) {
GridEntryCollection ipes = GetAllGridEntries();
if (ipes == null) {
return -1;
}
// Find the grid entry and return its ID
//
for(int index = 0; index < ipes.Count; ++index) {
if (ipes[index].Equals(gridEntry)) {
return index;
}
}
return -1;
}
internal void AccessibilitySelect(GridEntry entry) {
SelectGridEntry(entry, true);
FocusInternal();
}
private void AddGridEntryEvents(GridEntryCollection ipeArray, int startIndex, int count) {
if (ipeArray == null) {
return;
}
if (count == -1) {
count = ipeArray.Count - startIndex;
}
for (int i= startIndex; i < (startIndex + count); i++) {
if (ipeArray[i] != null) {
GridEntry ge = ipeArray.GetEntry(i);
ge.AddOnValueClick(ehValueClick);
ge.AddOnLabelClick(ehLabelClick);
ge.AddOnOutlineClick(ehOutlineClick);
ge.AddOnOutlineDoubleClick(ehOutlineClick);
ge.AddOnValueDoubleClick(ehValueDblClick);
ge.AddOnLabelDoubleClick(ehLabelDblClick);
ge.AddOnRecreateChildren(ehRecreateChildren);
}
}
}
protected virtual void AdjustOrigin(System.Drawing.Graphics g, Point newOrigin, ref Rectangle r) {
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "Adjusting paint origin to (" + newOrigin.X.ToString(CultureInfo.InvariantCulture) + "," + newOrigin.Y.ToString(CultureInfo.InvariantCulture) + ")");
g.ResetTransform();
g.TranslateTransform(newOrigin.X, newOrigin.Y);
r.Offset(-newOrigin.X, -newOrigin.Y);
}
private void CancelSplitterMove() {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:CancelSplitterMove");
if (GetFlag(FlagIsSplitterMove)) {
SetFlag(FlagIsSplitterMove, false);
CaptureInternal = false;
if (selectedRow != -1) {
SelectRow(selectedRow);
}
}
}
internal GridPositionData CaptureGridPositionData() {
return new GridPositionData(this);
}
private void ClearGridEntryEvents(GridEntryCollection ipeArray, int startIndex, int count) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:ClearGridEntryEvents");
if (ipeArray == null) {
return;
}
if (count == -1) {
count = ipeArray.Count - startIndex;
}
for (int i = startIndex ; i < (startIndex + count); i++) {
if (ipeArray[i] != null) {
GridEntry ge = ipeArray.GetEntry(i);
ge.RemoveOnValueClick(ehValueClick);
ge.RemoveOnLabelClick(ehLabelClick);
ge.RemoveOnOutlineClick(ehOutlineClick);
ge.RemoveOnOutlineDoubleClick(ehOutlineClick);
ge.RemoveOnValueDoubleClick(ehValueDblClick);
ge.RemoveOnLabelDoubleClick(ehLabelDblClick);
ge.RemoveOnRecreateChildren(ehRecreateChildren);
}
}
}
public void ClearProps() {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:ClearProps");
if (!HasEntries) {
return;
}
CommonEditorHide();
topLevelGridEntries = null;
ClearGridEntryEvents(allGridEntries, 0, -1);
allGridEntries = null;
selectedRow = -1;
//selectedGridEntry = null; // we don't wanna clear this because then we can't save where we were on a Refresh()
tipInfo = -1;
}
///
/// Closes a previously opened drop down. This should be called by the
/// drop down when the user does something that should close it.
///
public void /* IWindowsFormsEditorService. */ CloseDropDown() {
CloseDropDownInternal(true);
}
private void CloseDropDownInternal(bool resetFocus) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:CloseDropDown");
// the activation code in the DropDownHolder can cause this to recurse...
if (GetFlag(FlagDropDownClosing)) {
return;
}
try {
SetFlag(FlagDropDownClosing, true);
if (dropDownHolder != null && dropDownHolder.Visible) {
if (dropDownHolder.Component == DropDownListBox && GetFlag(FlagDropDownCommit)) {
OnListClick(null, null);
}
Edit.Filter = false;
// disable the ddh so it wont' steal the focus back
//
dropDownHolder.SetComponent(null, false);
dropDownHolder.Visible = false;
// when we disable the dropdown holder, focus will be lost,
// so put it onto one of our children first.
if (resetFocus) {
if (DialogButton.Visible) {
DialogButton.FocusInternal();
}
else if (DropDownButton.Visible) {
DropDownButton.FocusInternal();
}
else if (Edit.Visible) {
Edit.FocusInternal();
}
else {
FocusInternal();
}
if (selectedRow != -1) {
SelectRow(selectedRow);
}
}
}
}
finally {
SetFlag(FlagDropDownClosing, false);
}
}
private void CommonEditorHide() {
CommonEditorHide(false);
}
private void CommonEditorHide(bool always) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:CommonEditorHide");
if (!always && !HasEntries) {
return;
}
CloseDropDown();
bool gotfocus = false;
if (Edit.Focused || DialogButton.Focused || DropDownButton.Focused) {
if (IsHandleCreated && Visible && Enabled) {
gotfocus = IntPtr.Zero != UnsafeNativeMethods.SetFocus(new HandleRef(this, Handle));
}
}
try {
// We do this becuase the Focus call above doesn't always stick, so
// we make the Edit think that it doesn't have focus. this prevents
// ActiveControl code on the containercontrol from moving focus elsewhere
// when the dropdown closes.
Edit.DontFocus = true;
if (Edit.Focused && !gotfocus) {
gotfocus = this.FocusInternal();
}
Edit.Visible = false;
Edit.SelectionStart = 0;
Edit.SelectionLength = 0;
if (DialogButton.Focused && !gotfocus) {
gotfocus = this.FocusInternal();
}
DialogButton.Visible = false;
if (DropDownButton.Focused && !gotfocus) {
gotfocus = this.FocusInternal();
}
DropDownButton.Visible = false;
currentEditor = null;
}
finally {
Edit.DontFocus = false;
}
}
protected virtual void CommonEditorSetup(Control ctl) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:CommonEditorSetup");
ctl.Visible = false;
Controls.Add(ctl);
}
protected virtual void CommonEditorUse(Control ctl, Rectangle rectTarget) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:CommonEditorUse");
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "Showing common editors");
Debug.Assert(ctl != null, "Null control passed to CommonEditorUse");
Rectangle rectCur = ctl.Bounds;
// the client rect minus the border line
Rectangle clientRect = this.ClientRectangle;
clientRect.Inflate(-1,-1);
try {
rectTarget = Rectangle.Intersect(clientRect, rectTarget);
//if (ctl is Button)
// Debug.WriteStackTrace();
if (!rectTarget.IsEmpty) {
if (!rectTarget.Equals(rectCur)) {
ctl.SetBounds(rectTarget.X,rectTarget.Y,
rectTarget.Width,rectTarget.Height);
}
ctl.Visible = true;
}
}
catch {
rectTarget = Rectangle.Empty;
}
if (rectTarget.IsEmpty) {
ctl.Visible = false;
}
currentEditor = ctl;
}
private /*protected virtual*/ int CountPropsFromOutline(GridEntryCollection rgipes) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:CountPropsFromOutLine");
if (rgipes == null) return 0;
int cProps = rgipes.Count;
for (int i = 0; i < rgipes.Count; i++) {
if (((GridEntry)rgipes[i]).InternalExpanded)
cProps += CountPropsFromOutline(((GridEntry)rgipes[i]).Children);
}
return cProps;
}
///
/// Constructs the new instance of the accessibility object for this control. Subclasses
/// should not call base.CreateAccessibilityObject.
///
protected override AccessibleObject CreateAccessibilityInstance() {
return new PropertyGridViewAccessibleObject(this);
}
[ResourceExposure(ResourceScope.Machine)]
[ResourceConsumption(ResourceScope.Machine)]
private Bitmap CreateDownArrow() {
Bitmap bitmap = null;
try
{
Icon icon = new Icon(typeof(PropertyGrid), "Arrow.ico");
bitmap = icon.ToBitmap();
icon.Dispose();
}
catch (Exception e)
{
Debug.Fail(e.ToString());
bitmap = new Bitmap(16, 16);
}
return bitmap;
}
protected virtual void CreateUI() {
UpdateUIBasedOnFont(false);
}
protected override void Dispose(bool disposing) {
if (disposing) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:Dispose");
if (scrollBar != null) scrollBar.Dispose();
if (listBox != null) listBox.Dispose();
if (dropDownHolder != null) dropDownHolder.Dispose();
scrollBar = null;
listBox = null;
dropDownHolder = null;
ownerGrid = null;
topLevelGridEntries = null;
allGridEntries = null;
serviceProvider = null;
topHelpService = null;
if (helpService != null && helpService is IDisposable)
((IDisposable)helpService).Dispose();
helpService = null;
if (edit != null) {
edit.Dispose();
edit = null;
}
if (fontBold != null) {
fontBold.Dispose();
fontBold = null;
}
if (btnDropDown != null) {
btnDropDown.Dispose();
btnDropDown = null;
}
if (btnDialog != null) {
btnDialog.Dispose();
btnDialog = null;
}
if (toolTip != null) {
toolTip.Dispose();
toolTip = null;
}
}
base.Dispose(disposing);
}
public void DoCopyCommand() {
if (this.CanCopy) {
if (Edit.Focused) {
Edit.Copy();
}
else {
Clipboard.SetDataObject(selectedGridEntry.GetPropertyTextValue());
}
}
}
public void DoCutCommand() {
if (this.CanCut) {
DoCopyCommand();
if (Edit.Visible) {
Edit.Cut();
}
}
}
public void DoPasteCommand() {
if (this.CanPaste && Edit.Visible) {
if (Edit.Focused) {
Edit.Paste();
}
else {
IDataObject dataObj = Clipboard.GetDataObject();
if (dataObj != null) {
string data = (string)dataObj.GetData(typeof(string));
if (data != null) {
Edit.FocusInternal();
Edit.Text = data;
SetCommitError(ERROR_NONE, true);
}
}
}
}
}
public void DoUndoCommand() {
if (this.CanUndo && Edit.Visible) {
Edit.SendMessage(NativeMethods.WM_UNDO, 0, 0);
}
}
internal void DumpPropsToConsole(GridEntry entry, string prefix) {
Type propType = entry.PropertyType;
if (entry.PropertyValue != null) {
propType = entry.PropertyValue.GetType();
}
System.Console.WriteLine(prefix + entry.PropertyLabel + ", value type=" + (propType == null ? "(null)" : propType.FullName) + ", value=" + (entry.PropertyValue == null ? "(null)" : entry.PropertyValue.ToString()) +
", flags=" + entry.Flags.ToString(CultureInfo.InvariantCulture) +
", TypeConverter=" + (entry.TypeConverter == null ? "(null)" : entry.TypeConverter.GetType().FullName) + ", UITypeEditor=" + ((entry.UITypeEditor == null ? "(null)" : entry.UITypeEditor.GetType().FullName)));
GridEntryCollection children = entry.Children;
if (children != null) {
foreach(GridEntry g in children) {
DumpPropsToConsole(g, prefix + "\t");
}
}
}
private int GetIPELabelIndent(GridEntry gridEntry) {
//return OUTLINE_INDENT*(gridEntry.PropertyDepth + 1);
return gridEntry.PropertyLabelIndent + 1;
}
private int GetIPELabelLength(System.Drawing.Graphics g, GridEntry gridEntry) {
SizeF sizeF = PropertyGrid.MeasureTextHelper.MeasureText(this.ownerGrid, g, gridEntry.PropertyLabel, Font);
Size size = Size.Ceiling(sizeF);
return ptOurLocation.X + GetIPELabelIndent(gridEntry) + size.Width;
}
private bool IsIPELabelLong(System.Drawing.Graphics g,GridEntry gridEntry) {
if (gridEntry == null) return false;
int length = GetIPELabelLength(g,gridEntry);
return(length > ptOurLocation.X + InternalLabelWidth);
}
protected virtual void DrawLabel(System.Drawing.Graphics g, int row, Rectangle rect, bool selected, bool fLongLabelRequest, ref Rectangle clipRect) {
GridEntry gridEntry = GetGridEntryFromRow(row);
if (gridEntry == null || rect.IsEmpty)
return;
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "Drawing label for property " + gridEntry.PropertyLabel);
Point newOrigin = new Point(rect.X, rect.Y);
Rectangle cr = Rectangle.Intersect(rect, clipRect);
if (cr.IsEmpty) {
return;
}
AdjustOrigin(g, newOrigin, ref rect);
cr.Offset(-newOrigin.X, -newOrigin.Y);
try {
try
{
bool fLongLabel = false;
int labelEnd = 0;
int labelIndent = GetIPELabelIndent(gridEntry);
if (fLongLabelRequest)
{
labelEnd = GetIPELabelLength(g, gridEntry);
fLongLabel = IsIPELabelLong(g, gridEntry);
}
gridEntry.PaintLabel(g, rect, cr, selected, fLongLabel);
}
catch (Exception ex)
{
Debug.Fail(ex.ToString());
}
}
finally {
ResetOrigin(g);
}
}
protected virtual void DrawValueEntry(System.Drawing.Graphics g, int row, ref Rectangle clipRect) {
GridEntry gridEntry = GetGridEntryFromRow(row);
if (gridEntry == null)
return;
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "Drawing value for property " + gridEntry.PropertyLabel);
Rectangle r = GetRectangle(row,ROWVALUE);
Point newOrigin = new Point(r.X, r.Y);
Rectangle cr = Rectangle.Intersect(clipRect, r);
if (cr.IsEmpty) {
return;
}
AdjustOrigin(g, newOrigin, ref r);
cr.Offset(-newOrigin.X, -newOrigin.Y);
try {
try {
DrawValueEntry(g,r, cr,gridEntry,null, true);
}
catch {
}
}
finally {
ResetOrigin(g);
}
}
private /*protected virtual*/ void DrawValueEntry(System.Drawing.Graphics g, Rectangle rect, Rectangle clipRect, GridEntry gridEntry, object value, bool fetchValue) {
DrawValue(g, rect, clipRect, gridEntry, value, false, true, fetchValue, true);
}
private void DrawValue(System.Drawing.Graphics g, Rectangle rect, Rectangle clipRect, GridEntry gridEntry, object value, bool drawSelected, bool checkShouldSerialize, bool fetchValue, bool paintInPlace) {
GridEntry.PaintValueFlags paintFlags = GridEntry.PaintValueFlags.None;
if(drawSelected) {
paintFlags |= GridEntry.PaintValueFlags.DrawSelected;
}
if (checkShouldSerialize) {
paintFlags |= GridEntry.PaintValueFlags.CheckShouldSerialize;
}
if (fetchValue) {
paintFlags |= GridEntry.PaintValueFlags.FetchValue;
}
if (paintInPlace) {
paintFlags |= GridEntry.PaintValueFlags.PaintInPlace;
}
gridEntry.PaintValue(value, g, rect, clipRect, paintFlags);
}
private void F4Selection(bool popupModalDialog) {
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
if (gridEntry == null) return;
// if we are in an errorState, just put the focus back on the Edit
if (errorState != ERROR_NONE && Edit.Visible) {
Edit.FocusInternal();
return;
}
if (DropDownButton.Visible) {
PopupDialog(selectedRow);
}
else if (DialogButton.Visible) {
if (popupModalDialog) {
PopupDialog(selectedRow);
}
else {
DialogButton.FocusInternal();
}
}
else if (Edit.Visible) {
Edit.FocusInternal();
SelectEdit(false);
}
return;
}
//The following Suppress message calls are required so we can handle
//errors when attempting to generate an event handler when the document
//is read-only. This code is a duplicate of the error handling in
//CommitValue().
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2201:DoNotRaiseReservedExceptionTypes")]
public void DoubleClickRow(int row, bool toggleExpand, int type) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:DoubleClickRow");
GridEntry gridEntry = GetGridEntryFromRow(row);
if (gridEntry == null) return;
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "Property " + gridEntry.PropertyLabel + " double clicked");
if (!toggleExpand || type == ROWVALUE) {
try {
bool action = gridEntry.DoubleClickPropertyValue();
if (action) {
SelectRow(row);
return;
}
}
catch (Exception ex) {
SetCommitError(ERROR_THROWN);
ShowInvalidMessage(gridEntry.PropertyLabel, null, ex);
return;
}
}
SelectGridEntry(gridEntry, true);
if (type == ROWLABEL && toggleExpand && gridEntry.Expandable) {
SetExpand(gridEntry,!gridEntry.InternalExpanded);
return;
}
if (gridEntry.IsValueEditable && gridEntry.Enumerable) {
int index = GetCurrentValueIndex(gridEntry);
if (index != -1) {
object[] values = gridEntry.GetPropertyValueList();
if (values == null || index >= (values.Length - 1)) {
index = 0;
}
else {
index++;
}
CommitValue(values[index]);
SelectRow(selectedRow);
Refresh();
return;
}
}
if (Edit.Visible) {
Edit.FocusInternal();
SelectEdit(false);
return;
}
}
public Font GetBaseFont() {
return Font;
}
public Font GetBoldFont() {
if (fontBold == null) {
fontBold = new Font(this.Font, FontStyle.Bold);
}
return fontBold;
}
internal IntPtr GetBaseHfont() {
if (baseHfont == IntPtr.Zero) {
baseHfont = GetBaseFont().ToHfont();
}
return baseHfont;
}
internal IntPtr GetBoldHfont() {
if (boldHfont == IntPtr.Zero) {
boldHfont = GetBoldFont().ToHfont();
}
return boldHfont;
}
private bool GetFlag(short flag) {
return (this.flags & flag) != 0;
}
public virtual Color GetLineColor() {
return ownerGrid.LineColor;
}
public virtual Brush GetLineBrush(Graphics g) {
if (ownerGrid.lineBrush == null) {
Color clr = g.GetNearestColor(ownerGrid.LineColor);
ownerGrid.lineBrush = new SolidBrush(clr);
}
return ownerGrid.lineBrush;
}
public virtual IntPtr GetHostHandle() {
return Handle;
}
public virtual int GetLabelWidth() {
return InternalLabelWidth;
}
internal bool IsExplorerTreeSupported {
get {
if (UnsafeNativeMethods.IsVista && VisualStyleRenderer.IsSupported) {
return true;
}
return false;
}
}
public virtual int GetOutlineIconSize() {
if (IsExplorerTreeSupported) {
return OUTLINE_SIZE_EXPLORER_TREE_STYLE;
}
else {
return OUTLINE_SIZE;
}
}
public virtual int GetGridEntryHeight() {
return RowHeight;
}
// for qa automation
internal int GetPropertyLocation(string propName, bool getXY, bool rowValue) {
if (allGridEntries != null && allGridEntries.Count > 0) {
for (int i = 0; i < allGridEntries.Count; i++) {
if (0 == String.Compare(propName, allGridEntries.GetEntry(i).PropertyLabel, true, CultureInfo.InvariantCulture)) {
if (getXY) {
int row = GetRowFromGridEntry(allGridEntries.GetEntry(i));
if (row < 0 || row >= this.visibleRows) {
return -1;
}
else {
Rectangle r = GetRectangle(row, rowValue ? ROWVALUE : ROWLABEL);
return(r.Y << 16 | (r.X & 0xFFFF));
}
}
else {
return i;
}
}
}
}
return -1;
}
public new object GetService(Type classService) {
if (classService == typeof(IWindowsFormsEditorService)) {
return this;
}
if (ServiceProvider != null) {
return serviceProvider.GetService(classService);
}
return null;
}
public virtual int GetSplitterWidth() {
return 1;
}
public virtual int GetTotalWidth() {
return GetLabelWidth() + GetSplitterWidth() + GetValueWidth();
}
public virtual int GetValuePaintIndent() {
return PAINT_INDENT;
}
public virtual int GetValuePaintWidth() {
return PAINT_WIDTH;
}
public virtual int GetValueStringIndent() {
return EDIT_INDENT;
}
public virtual int GetValueWidth() {
return(int)(InternalLabelWidth * (labelRatio - 1));
}
///
/// Displays the provided control in a drop down. When possible, the
/// current dimensions of the control will be respected. If this is not possible
/// for the current screen layout the control may be resized, so it should
/// be implemented using appropriate docking and anchoring so it will resize
/// nicely. If the user performs an action that would cause the drop down
/// to prematurely disappear the control will be hidden.
///
public void /* cpr IWindowsFormsEditorService. */ DropDownControl(Control ctl) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:DropDownControl");
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "DropDownControl(ctl = " + ctl.GetType().Name + ")");
if (dropDownHolder == null) {
dropDownHolder = new DropDownHolder(this);
}
dropDownHolder.Visible = false;
dropDownHolder.SetComponent(ctl, GetFlag(FlagResizableDropDown));
Rectangle rect = GetRectangle(selectedRow,ROWVALUE);
Size size = dropDownHolder.Size;
Point loc = PointToScreen(new Point(0, 0));
Rectangle rectScreen = Screen.FromControl(Edit).WorkingArea;
size.Width = Math.Max(rect.Width+1,size.Width);
// Not needed... CYMAXDDLHEIGHT used to be 200, but why limit it???
//size.Height = Math.Min(size.Height,CYMAXDDLHEIGHT);
loc.X = Math.Min(rectScreen.X + rectScreen.Width - size.Width,
Math.Max(rectScreen.X,loc.X + rect.X + rect.Width - size.Width));
loc.Y += rect.Y;
if (rectScreen.Y + rectScreen.Height < (size.Height + loc.Y + Edit.Height)) {
loc.Y -= size.Height;
dropDownHolder.ResizeUp = true;
}
else {
loc.Y += rect.Height + 1;
dropDownHolder.ResizeUp = false;
}
UnsafeNativeMethods.SetWindowLong(new HandleRef(dropDownHolder, dropDownHolder.Handle), NativeMethods.GWL_HWNDPARENT, new HandleRef(this, Handle));
dropDownHolder.SetBounds(loc.X,loc.Y,size.Width,size.Height);
SafeNativeMethods.ShowWindow(new HandleRef(dropDownHolder, dropDownHolder.Handle), NativeMethods.SW_SHOWNA);
Edit.Filter = true;
dropDownHolder.Visible = true;
dropDownHolder.FocusComponent();
SelectEdit(false);
try {
DropDownButton.IgnoreMouse = true;
dropDownHolder.DoModalLoop();
}
finally {
DropDownButton.IgnoreMouse = false;
}
if (selectedRow != -1) {
FocusInternal();
SelectRow(selectedRow);
}
}
public virtual void DropDownDone() {
CloseDropDown();
}
public virtual void DropDownUpdate() {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "DropDownHolder:DropDownUpdate");
if (dropDownHolder != null && dropDownHolder.GetUsed()) {
int row = selectedRow;
GridEntry gridEntry = GetGridEntryFromRow(row);
Edit.Text = gridEntry.GetPropertyTextValue();
}
}
public bool EnsurePendingChangesCommitted() {
this.CloseDropDown();
return this.Commit();
}
private bool FilterEditWndProc(ref Message m) {
// if it's the TAB key, we keep it since we'll give them focus with it.
if (dropDownHolder != null && dropDownHolder.Visible && m.Msg == NativeMethods.WM_KEYDOWN && (int)m.WParam != (int)Keys.Tab) {
Control ctl = dropDownHolder.Component;
if (ctl != null) {
m.Result = ctl.SendMessage(m.Msg, m.WParam, m.LParam);
return true;
}
}
return false;
}
private bool FilterReadOnlyEditKeyPress(char keyChar) {
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
if (gridEntry.Enumerable && gridEntry.IsValueEditable) {
int index = GetCurrentValueIndex(gridEntry);
object[] values = gridEntry.GetPropertyValueList();
string letter = new string(new char[] {keyChar});
for (int i = 0; i < values.Length; i++) {
object valueCur = values[(i + index + 1) % values.Length];
string text = gridEntry.GetPropertyTextValue(valueCur);
if (text != null && text.Length > 0 && String.Compare(text.Substring(0,1), letter, true, CultureInfo.InvariantCulture) == 0) {
CommitValue(valueCur);
if (Edit.Focused) {
SelectEdit(false);
}
return true;
}
}
}
return false;
}
public virtual bool WillFilterKeyPress(char charPressed) {
if (!Edit.Visible) {
return false;
}
Keys modifiers = ModifierKeys;
if ((int)(modifiers & ~Keys.Shift) != 0) {
return false;
}
// try to activate the Edit.
// we don't activate for +,-, or * on expandable items because they have special meaning
// for the tree.
//
if (selectedGridEntry != null) {
switch (charPressed) {
case '+':
case '-':
case '*':
return !selectedGridEntry.Expandable;
case unchecked( (char)(int)(long)Keys.Tab):
return false;
}
}
return true;
}
public void FilterKeyPress(char keyChar) {
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
if (gridEntry == null)
return;
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:FilterKeyPress()");
Edit.FilterKeyPress(keyChar);
}
private /*protected virtual*/ GridEntry FindEquivalentGridEntry(GridEntryCollection ipeHier) {
if (ipeHier == null || ipeHier.Count == 0)
return null;
GridEntryCollection rgipes = GetAllGridEntries();
if (rgipes == null || rgipes.Count == 0) {
return null;
}
GridEntry targetEntry = null;
int row = 0;
int count = rgipes.Count;
for (int i = 0; i < ipeHier.Count; i++) {
if (ipeHier[i] == null) {
continue;
}
// if we've got one above, and it's expandable,
// expand it
if (targetEntry != null) {
// how many do we have?
int items = rgipes.Count;
// expand and get the new count
if (!targetEntry.InternalExpanded) {
SetExpand(targetEntry, true);
rgipes = GetAllGridEntries();
}
count = targetEntry.VisibleChildCount;
}
int start = row;
targetEntry = null;
// now, we will only go as many as were expanded...
for (; row < rgipes.Count && ((row - start) <= count); row++) {
if (ipeHier.GetEntry(i).NonParentEquals(rgipes[row])) {
targetEntry = rgipes.GetEntry(row);
row++;
break;
}
}
// didn't find it...
if (targetEntry == null) {
break;
}
}
return targetEntry;
}
protected virtual Point FindPosition(int x, int y) {
if (RowHeight == -1)
return InvalidPosition;
Size size = this.GetOurSize();
if (x < 0 || x > size.Width + ptOurLocation.X)
return InvalidPosition;
Point pt = new Point(ROWLABEL,0);
if (x > InternalLabelWidth + ptOurLocation.X)
pt.X = ROWVALUE;
pt.Y = (y-ptOurLocation.Y)/(1+RowHeight);
return pt;
}
public virtual void Flush() {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView::Flush()");
if (Commit() && Edit.Focused) {
this.FocusInternal();
}
}
private GridEntryCollection GetAllGridEntries() {
return GetAllGridEntries(false);
}
private GridEntryCollection GetAllGridEntries(bool fUpdateCache) {
if (visibleRows == -1 || totalProps == -1 || !HasEntries) {
return null;
}
if (allGridEntries != null && !fUpdateCache) {
return allGridEntries;
}
GridEntry[] rgipes = new GridEntry[totalProps];
try
{
GetGridEntriesFromOutline(topLevelGridEntries, 0, 0, rgipes);
}
catch (Exception ex)
{
Debug.Fail(ex.ToString());
}
allGridEntries = new GridEntryCollection(null, rgipes);
AddGridEntryEvents(allGridEntries, 0, -1);
return allGridEntries;
}
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes")]
private int GetCurrentValueIndex(GridEntry gridEntry) {
if (!gridEntry.Enumerable) {
return -1;
}
try {
object[] values = gridEntry.GetPropertyValueList();
object value = gridEntry.PropertyValue;
string textValue = gridEntry.TypeConverter.ConvertToString(gridEntry, value);
if (values != null && values.Length > 0) {
string itemTextValue;
int stringMatch = -1;
int equalsMatch = -1;
for (int i = 0; i < values.Length; i++) {
object curValue = values[i];
// check real values against string values.
itemTextValue = gridEntry.TypeConverter.ConvertToString(curValue);
if (value == curValue || 0 == String.Compare(textValue, itemTextValue, true, CultureInfo.InvariantCulture)) {
stringMatch = i;
}
// now try .equals if they are both non-null
if (value != null && curValue != null && curValue.Equals(value)) {
equalsMatch = i;
}
if (stringMatch == equalsMatch && stringMatch != -1) {
return stringMatch;
}
}
if (stringMatch != -1) {
return stringMatch;
}
if (equalsMatch != -1) {
return equalsMatch;
}
}
}
catch (Exception e) {
Debug.Fail(e.ToString());
}
return -1;
}
public virtual int GetDefaultOutlineIndent() {
return OUTLINE_INDENT;
}
private IHelpService GetHelpService() {
if (helpService == null && ServiceProvider != null) {
topHelpService = (IHelpService)ServiceProvider.GetService(typeof(IHelpService));
if (topHelpService != null) {
IHelpService localHelpService = topHelpService.CreateLocalContext(HelpContextType.ToolWindowSelection);
if (localHelpService != null) {
helpService = localHelpService;
}
}
}
return helpService;
}
public virtual int GetScrollOffset() {
//Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:GetScrollOffset");
if (scrollBar == null) {
return 0;
}
int pos = ScrollBar.Value;
return pos;
}
///
/// returns an array of IPE specifying the current heirarchy of ipes from the given
/// gridEntry through its parents to the root.
///
private GridEntryCollection GetGridEntryHierarchy(GridEntry gridEntry) {
if (gridEntry == null) {
return null;
}
int depth = gridEntry.PropertyDepth;
if (depth > 0) {
GridEntry[] entries = new GridEntry[depth + 1];
while (gridEntry != null && depth >= 0) {
entries[depth] = gridEntry;
gridEntry = gridEntry.ParentGridEntry;
depth = gridEntry.PropertyDepth;
}
return new GridEntryCollection(null, entries);
}
return new GridEntryCollection(null, new GridEntry[]{gridEntry});
}
private /*protected virtual*/ GridEntry GetGridEntryFromRow(int row) {
return GetGridEntryFromOffset(row + GetScrollOffset());
}
private /*protected virtual*/ GridEntry GetGridEntryFromOffset(int offset) {
GridEntryCollection rgipesAll = GetAllGridEntries();
if (rgipesAll != null) {
if (offset >= 0 && offset < rgipesAll.Count)
return rgipesAll.GetEntry(offset);
}
return null;
}
private /*protected virtual*/ int GetGridEntriesFromOutline(GridEntryCollection rgipe, int cCur,
int cTarget, GridEntry[] rgipeTarget) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:GetGridEntriesFromOutline");
if (rgipe == null || rgipe.Count == 0)
return cCur;
cCur--; // want to account for each entry as we find it.
for (int cLocal = 0; cLocal < rgipe.Count; cLocal++) {
cCur++;
if (cCur >= cTarget + rgipeTarget.Length)
break;
GridEntry ipeCur = rgipe.GetEntry(cLocal);
//Debug.Assert(ipeCur != null, "Null IPE at position " + cLocal.ToString());
if (cCur >= cTarget)
rgipeTarget[cCur - cTarget] = ipeCur;
if (ipeCur.InternalExpanded) {
GridEntryCollection subGridEntry = ipeCur.Children;
//Debug.Assert(subGridEntry != null && subGridEntry.Length > 0 && subGridEntry[0] != null, "Expanded property " + ipeCur.PropertyLabel + " has no children!");
if (subGridEntry != null && subGridEntry.Count > 0) {
cCur = GetGridEntriesFromOutline(subGridEntry,
cCur+1,cTarget,rgipeTarget);
}
}
}
return cCur;
}
private Size GetOurSize() {
Size size = ClientSize;
if (size.Width == 0) {
Size sizeWindow = Size;
if (sizeWindow.Width > 10) {
Debug.Fail("We have a bad client width!");
size.Width = sizeWindow.Width;
size.Height = sizeWindow.Height;
}
}
if (!GetScrollbarHidden()) {
Size sizeScroll = ScrollBar.Size;
size.Width -= sizeScroll.Width;
}
size.Width -= 2;
size.Height -= 2;
return size;
}
public Rectangle GetRectangle(int row, int flRow) {
Rectangle rect = new Rectangle(0,0,0,0);
Size size = this.GetOurSize();
rect.X = ptOurLocation.X;
bool fLabel = ((flRow & ROWLABEL) != 0);
bool fValue = ((flRow & ROWVALUE) != 0);
if (fLabel && fValue) {
rect.X = 1;
rect.Width = size.Width - 1;
}
else if (fLabel) {
rect.X = 1;
rect.Width = InternalLabelWidth - 1;
}
else if (fValue) {
rect.X = ptOurLocation.X + InternalLabelWidth;
rect.Width = size.Width - InternalLabelWidth;
}
rect.Y = (row)*(RowHeight+1)+1+ptOurLocation.Y;
rect.Height = RowHeight;
return rect;
}
private /*protected virtual*/ int GetRowFromGridEntry(GridEntry gridEntry) {
GridEntryCollection rgipesAll = GetAllGridEntries();
if (gridEntry == null || rgipesAll == null)
return -1;
int bestMatch = -1;
for (int i = 0; i < rgipesAll.Count; i++) {
// try for an exact match. semantics of equals are a bit loose here...
//
if (gridEntry == rgipesAll[i]) {
return i - GetScrollOffset();
}
else if (bestMatch == -1 && gridEntry.Equals(rgipesAll[i])) {
bestMatch = i - GetScrollOffset();
}
}
if (bestMatch != -1) {
return bestMatch;
}
return -1 - GetScrollOffset();
}
public virtual bool GetInPropertySet() {
return GetFlag(FlagInPropertySet);
}
protected virtual bool GetScrollbarHidden() {
if (scrollBar == null) {
return true;
}
return !ScrollBar.Visible;
}
///
/// Returns a string containing test info about a given GridEntry. Requires an offset into the top-level
/// entry collection (ie. nested entries are not accessible). Or specify -1 to get info for the current
/// selected entry (which can be any entry, top-level or nested).
///
public virtual string GetTestingInfo(int entry) {
GridEntry gridEntry = (entry < 0) ? GetGridEntryFromRow(selectedRow) : GetGridEntryFromOffset(entry);
if (gridEntry == null)
return "";
else
return gridEntry.GetTestingInfo();
}
public Color GetTextColor() {
return this.ForeColor;
}
private void LayoutWindow(bool invalidate) {
Rectangle rect = ClientRectangle;
Size sizeWindow = new Size(rect.Width,rect.Height);
if (scrollBar != null) {
Rectangle boundsScroll = ScrollBar.Bounds;
boundsScroll.X = sizeWindow.Width - boundsScroll.Width - 1;
boundsScroll.Y = 1;
boundsScroll.Height = sizeWindow.Height - 2;
ScrollBar.Bounds = boundsScroll;
}
if (invalidate) {
Invalidate();
}
}
internal void InvalidateGridEntryValue(GridEntry ge) {
int row = GetRowFromGridEntry(ge);
if (row != -1) {
InvalidateRows(row, row, ROWVALUE);
}
}
private void InvalidateRow(int row) {
InvalidateRows(row, row, ROWVALUE | ROWLABEL);
}
private void InvalidateRows(int startRow, int endRow) {
InvalidateRows(startRow, endRow, ROWVALUE | ROWLABEL);
}
private void InvalidateRows(int startRow, int endRow, int type) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:InvalidateRows");
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "Invalidating rows " + startRow.ToString(CultureInfo.InvariantCulture) + " through " + endRow.ToString(CultureInfo.InvariantCulture));
Rectangle rect;
// invalidate from the start row down
if (endRow == -1) {
rect = GetRectangle(startRow, type);
rect.Height = (Size.Height - rect.Y) - 1;
Invalidate(rect);
}
else {
for (int i = startRow; i <= endRow; i++) {
rect = GetRectangle(i, type);
Invalidate(rect);
}
}
}
///
/// Overridden to handle TAB key.
///
protected override bool IsInputKey(Keys keyData) {
switch (keyData & Keys.KeyCode) {
case Keys.Escape:
case Keys.Tab:
case Keys.F4:
return false;
case Keys.Return:
if (Edit.Focused) {
return false;
}
break;
}
return base.IsInputKey(keyData);
}
private bool IsMyChild(Control c) {
if (c == this || c == null) {
return false;
}
Control cParent = c.ParentInternal;
while (cParent != null) {
if (cParent == this) {
return true;
}
cParent = cParent.ParentInternal;
}
return false;
}
private bool IsScrollValueValid(int newValue) {
/*Debug.WriteLine("se.newValue = " + se.newValue.ToString());
Debug.WriteLine("ScrollBar.Value = " + ScrollBar.Value.ToString());
Debug.WriteLine("visibleRows = " + visibleRows.ToString());
Debug.WriteLine("totalProps = " + totalProps.ToString());
Debug.WriteLine("ScrollBar.Max = " + ScrollBar.Maximum.ToString());
Debug.WriteLine("ScrollBar.LargeChange = " + ScrollBar.LargeChange.ToString());*/
// is this move valid?
if (newValue == ScrollBar.Value ||
newValue < 0 ||
newValue > ScrollBar.Maximum ||
(newValue + (ScrollBar.LargeChange-1) >= totalProps)) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView: move not needed, returning");
return false;
}
return true;
}
internal bool IsSiblingControl(Control c1, Control c2) {
Control parent1 = c1.ParentInternal;
Control parent2 = c2.ParentInternal;
while (parent2 != null) {
if (parent1 == parent2) {
return true;
}
parent2 = parent2.ParentInternal;
}
return false;
}
private void MoveSplitterTo(int xpos) {
int widthPS = GetOurSize().Width;
int startPS = ptOurLocation.X;
int pos = Math.Max(Math.Min(xpos,widthPS-10),GetOutlineIconSize() * 2);
int oldLabelWidth = InternalLabelWidth;
labelRatio = ((double)widthPS / (double) (pos - startPS));
SetConstants();
if (selectedRow != -1) {
// do this to move any editor we have
SelectRow(selectedRow);
}
Rectangle r = ClientRectangle;
// if we're moving to the left, just invalidate the values
if (oldLabelWidth > InternalLabelWidth) {
int left = InternalLabelWidth - requiredLabelPaintMargin;
Invalidate(new Rectangle(left, 0, Size.Width - left, Size.Height));
}
else {
// to the right, just invalidate from where the splitter was
// to the right
r.X = oldLabelWidth - requiredLabelPaintMargin;
r.Width -= r.X;
Invalidate(r);
}
}
private void OnBtnClick(object sender, EventArgs e) {
if (GetFlag(FlagBtnLaunchedEditor)) {
return;
}
if (sender == DialogButton && !Commit()) {
return;
}
SetCommitError(ERROR_NONE);
try {
Commit();
SetFlag(FlagBtnLaunchedEditor, true);
PopupDialog(selectedRow);
}
finally {
SetFlag(FlagBtnLaunchedEditor, false);
}
}
private void OnBtnKeyDown(object sender, KeyEventArgs ke) {
OnKeyDown(sender,ke);
}
private void OnChildLostFocus(object sender, EventArgs e) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnChildLostFocus");
OnLostFocus(null);
}
protected override void OnGotFocus(EventArgs e) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnGotFocus");
base.OnGotFocus(e);
if (e != null && !GetInPropertySet()) {
if (!Commit()) {
Edit.FocusInternal();
return;
}
}
if (selectedGridEntry != null && GetRowFromGridEntry(selectedGridEntry) != -1) {
selectedGridEntry.Focus = true;
SelectGridEntry(selectedGridEntry, false);
}
else {
SelectRow(0);
}
if (selectedGridEntry != null && selectedGridEntry.GetValueOwner() != null) {
UpdateHelpAttributes(null, selectedGridEntry);
}
}
protected override void OnHandleCreated(EventArgs e) {
base.OnHandleCreated(e);
SystemEvents.UserPreferenceChanged += new UserPreferenceChangedEventHandler(this.OnSysColorChange);
}
protected override void OnHandleDestroyed(EventArgs e) {
SystemEvents.UserPreferenceChanged -= new UserPreferenceChangedEventHandler(this.OnSysColorChange);
// We can leak this if we aren't disposed.
//
if (toolTip != null && !RecreatingHandle) {
toolTip.Dispose();
toolTip = null;
}
base.OnHandleDestroyed(e);
}
/*
public bool OnHelp() {
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
if (gridEntry == null || !(Focused || Edit.Focused)) {
return false;
}
string keyword = gridEntry.HelpKeyword;
if (keyword != null && keyword.Length != 0) {
try {
IHelpService hsvc = GetHelpService();
if (hsvc != null) {
hsvc.ShowHelpFromKeyword(keyword);
}
}
catch (Exception) {
}
}
return true;
}
// This has no effect, see VSW#470693.
protected override void OnImeModeChanged(EventArgs e) {
// VSW #375530
// Only update edit box mode if actually out of [....] with grid's mode (to avoid re-entrancy issues)
//
if (edit != null && edit.ImeMode != this.ImeMode) {
// URT #51190
// Keep the ImeMode of the property grid and edit box in step
//
edit.ImeMode = this.ImeMode;
}
base.OnImeModeChanged(e);
}
*/
private void OnListChange(object sender, EventArgs e) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnListChange");
if (!DropDownListBox.InSetSelectedIndex()) {
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
Edit.Text = gridEntry.GetPropertyTextValue(DropDownListBox.SelectedItem);
Edit.FocusInternal();
SelectEdit(false);
}
SetFlag(FlagDropDownCommit, true);
}
private void OnListMouseUp(object sender, MouseEventArgs me) {
OnListClick(sender, me);
}
private void OnListClick(object sender, EventArgs e) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnListClick");
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
if (DropDownListBox.Items.Count == 0) {
CommonEditorHide();
SetCommitError(ERROR_NONE);
SelectRow(selectedRow);
return;
}
else {
object value = DropDownListBox.SelectedItem;
// don't need the commit becuase we're committing anyway.
//
SetFlag(FlagDropDownCommit, false);
if (value != null && !CommitText((string)value)) {
SetCommitError(ERROR_NONE);
SelectRow(selectedRow);
}
}
}
private void OnListDrawItem(object sender, DrawItemEventArgs die) {
int index = die.Index;
if (index < 0 || selectedGridEntry == null) {
return;
}
string text = (string)DropDownListBox.Items[die.Index];
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "Drawing list item, value='" + text + "'");
die.DrawBackground();
die.DrawFocusRectangle();
Rectangle drawBounds = die.Bounds;
drawBounds.Y += 1;
drawBounds.X -= 1;
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
try {
DrawValue(die.Graphics, drawBounds, drawBounds, gridEntry, gridEntry.ConvertTextToValue(text), (int)(die.State & DrawItemState.Selected) != 0, false, false, false);
}
catch (FormatException ex) {
ShowFormatExceptionMessage(gridEntry.PropertyLabel, text, ex);
if (DropDownListBox.IsHandleCreated)
DropDownListBox.Visible = false;
}
}
private void OnListKeyDown(object sender, KeyEventArgs ke) {
if (ke.KeyCode == Keys.Return) {
OnListClick(null, null);
if (selectedGridEntry != null) {
selectedGridEntry.OnValueReturnKey();
}
}
OnKeyDown(sender,ke);
}
protected override void OnLostFocus(EventArgs e) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnLostFocus");
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "PropertyGridView lost focus");
if (e != null) {
base.OnLostFocus(e);
}
if (this.FocusInside) {
base.OnLostFocus(e);
return;
}
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
if (gridEntry != null) {
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "removing gridEntry focus");
gridEntry.Focus = false;;
CommonEditorHide();
InvalidateRow(selectedRow);
}
base.OnLostFocus(e);
}
private void OnEditChange(object sender, EventArgs e) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnEditChange");
SetCommitError(ERROR_NONE, Edit.Focused);
ToolTip.ToolTip = "";
ToolTip.Visible = false;
if (!Edit.InSetText()) {
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
if (gridEntry != null && (gridEntry.Flags & GridEntry.FLAG_IMMEDIATELY_EDITABLE) != 0)
Commit();
}
}
private void OnEditGotFocus(object sender, EventArgs e) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnEditGotFocus");
if (!Edit.Visible) {
this.FocusInternal();
return;
}
switch (errorState) {
case ERROR_MSGBOX_UP:
return;
case ERROR_THROWN:
if (Edit.Visible) {
Edit.HookMouseDown = true;
}
break;
default:
if (this.NeedsCommit) {
SetCommitError(ERROR_NONE, true);
}
break;
}
if (selectedGridEntry != null && GetRowFromGridEntry(selectedGridEntry) != -1) {
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "adding gridEntry focus");
selectedGridEntry.Focus = true;
InvalidateRow(selectedRow);
(Edit.AccessibilityObject as ControlAccessibleObject).NotifyClients(AccessibleEvents.Focus);
}
else {
SelectRow(0);
}
}
/*
private void OnEditImeModeChanged(object sender, EventArgs e) {
// URT #51190
// The property grid ImeMode tracks the ImeMode of the edit control.
// We require this because the first character the goes into the edit control
// is composed while the PropertyGrid still has focus - so the ImeMode
// of the grid and the edit need to be the same or we get inconsistent IME composition.
//
if (this.ImeMode != edit.ImeMode) {
this.ImeMode = edit.ImeMode;
}
}
*/
private void OnEditKeyDown(object sender, KeyEventArgs ke) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnEditKeyDown");
bool fAlt = ke.Alt;
if (!fAlt && (ke.KeyCode == Keys.Up || ke.KeyCode == Keys.Down)) {
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
if (!gridEntry.Enumerable || !gridEntry.IsValueEditable) {
return;
}
object value = gridEntry.PropertyValue;
object[] rgvalues = gridEntry.GetPropertyValueList();
ke.Handled = true;
if (rgvalues != null) {
for (int i = 0; i < rgvalues.Length; i++) {
object rgvalue = rgvalues[i];
if (value != null && rgvalue != null && value.GetType() != rgvalue.GetType() && gridEntry.TypeConverter.CanConvertTo(gridEntry, value.GetType())) {
rgvalue = gridEntry.TypeConverter.ConvertTo(gridEntry, CultureInfo.CurrentCulture, rgvalue, value.GetType());
}
bool equal = (value == rgvalue) || (value != null && value.Equals(rgvalue));
if (!equal && value is string && rgvalue != null) {
equal = 0 == String.Compare((string)value, rgvalue.ToString(), true, CultureInfo.CurrentCulture);
}
if (equal) {
object valueNew = null;
if (ke.KeyCode == Keys.Up) {
if (i == 0) return;
valueNew = rgvalues[i - 1];
}
else {
if (i == rgvalues.Length - 1) return;
valueNew = rgvalues[i + 1];
}
CommitValue(valueNew);
SelectEdit(false);
return;
}
}
}
}
// VS7 # 13336: handle non-expand/collapse case of left & right as up & down
else if ((ke.KeyCode == Keys.Left || ke.KeyCode == Keys.Right) &&
(ke.Modifiers & ~Keys.Shift) != 0) {
return;
}
OnKeyDown(sender,ke);
}
private void OnEditKeyPress(object sender, KeyPressEventArgs ke) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnEditKeyPress");
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
if (gridEntry == null)
return;
if (!gridEntry.IsTextEditable) {
ke.Handled = FilterReadOnlyEditKeyPress(ke.KeyChar);
}
}
private void OnEditLostFocus(object sender, EventArgs e) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnEditLostFocus");
// believe it or not, this can actually happen.
if (Edit.Focused || (errorState == ERROR_MSGBOX_UP) || (errorState == ERROR_THROWN)|| GetInPropertySet()) {
return;
}
// check to see if the focus is on the drop down or one of it's children
// if so, return;
if (dropDownHolder != null && dropDownHolder.Visible) {
bool found = false;
for (IntPtr hwnd = UnsafeNativeMethods.GetForegroundWindow();
hwnd != IntPtr.Zero; hwnd = UnsafeNativeMethods.GetParent(new HandleRef(null, hwnd))) {
if (hwnd == dropDownHolder.Handle) {
found = true;
}
}
if (found)
return;
}
if (this.FocusInside) {
return;
}
// if the focus isn't goint to a child of the view
if (!Commit()) {
Edit.FocusInternal();
return;
}
// change our focus state.
OnLostFocus(null);
}
private void OnEditMouseDown(object sender, MouseEventArgs me) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnEditMouseDown");
if (!FocusInside) {
SelectGridEntry(selectedGridEntry, false);
}
if (me.Clicks % 2 == 0) {
DoubleClickRow(selectedRow,false, ROWVALUE);
Edit.SelectAll();
}
if (rowSelectTime == 0) {
return;
}
// check if the click happened within the double click time since the row was selected.
// this allows the edits to be selected with two clicks instead of 3 (select row, double click).
//
long timeStamp = DateTime.Now.Ticks;
int delta = (int)((timeStamp - rowSelectTime) / 10000); // make it milleseconds
if (delta < SystemInformation.DoubleClickTime) {
Point screenPoint = Edit.PointToScreen(new Point(me.X, me.Y));
if (Math.Abs(screenPoint.X - rowSelectPos.X) < SystemInformation.DoubleClickSize.Width &&
Math.Abs(screenPoint.Y - rowSelectPos.Y) < SystemInformation.DoubleClickSize.Height) {
DoubleClickRow(selectedRow,false, ROWVALUE);
Edit.SendMessage(NativeMethods.WM_LBUTTONUP, 0, (int)(me.Y << 16 | (me.X & 0xFFFF)));
Edit.SelectAll();
}
rowSelectPos = Point.Empty;
rowSelectTime = 0;
}
}
private bool OnF4(Control sender) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnF4");
if (ModifierKeys != 0) {
return false;
}
if (sender == this || sender == this.ownerGrid)
F4Selection(true);
else
UnfocusSelection();
return true;
}
private bool OnEscape(Control sender) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnEscape");
if ((ModifierKeys & (Keys.Alt | Keys.Control)) != 0) {
return false;
}
SetFlag(FlagDropDownCommit, false);
if (sender == Edit && Edit.Focused) {
// if we aren't in an error state, just quit
if (errorState == ERROR_NONE) {
Edit.Text = originalTextValue;
FocusInternal();
return true;
}
if (this.NeedsCommit) {
bool success = false;
Edit.Text = originalTextValue;
bool needReset = true;
if (selectedGridEntry != null) {
string curTextValue = selectedGridEntry.GetPropertyTextValue();
needReset = originalTextValue != curTextValue && !(string.IsNullOrEmpty(originalTextValue) && string.IsNullOrEmpty(curTextValue));
}
if (needReset) {
try {
success = CommitText(originalTextValue);
}
catch {
}
}
else {
success = true;
}
// this would be an odd thing to happen, but...
if (!success) {
Edit.FocusInternal();
SelectEdit(false);
return true;
}
}
SetCommitError(ERROR_NONE);
FocusInternal();
return true;
}
else if (sender != this) {
CloseDropDown();
FocusInternal();
}
return false;
}
protected override void OnKeyDown(KeyEventArgs ke) {
OnKeyDown(this,ke);
}
[
SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters") // We want to commit empty text.
// So we don't have to localize it.
]
private void OnKeyDown(object sender, KeyEventArgs ke) {
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
if (gridEntry == null) return;
ke.Handled = true;
bool fControl = ke.Control;
bool fShift = ke.Shift;
bool fBoth = fControl && fShift;
bool fAlt = ke.Alt;
Keys keyCode = ke.KeyCode;
bool fallingThorugh = false;
// [....], we have to do this here because if we are
// hosted in a non-windows forms dialog, we never get a chance to
// peek at the messages, we just get called,
// so we have to do this here...
//
if (keyCode == Keys.Tab) {
if (ProcessDialogKey(ke.KeyData)) {
ke.Handled = true;
return;
}
}
// Alt-Arrow support... sigh...
if (keyCode == Keys.Down && fAlt && DropDownButton.Visible) {
F4Selection(false);
return;
}
if (keyCode == Keys.Up && fAlt && DropDownButton.Visible && (dropDownHolder != null) && dropDownHolder.Visible) {
UnfocusSelection();
return;
}
if (ToolTip.Visible) {
ToolTip.ToolTip = "";
}
if (fBoth || sender == this || sender == this.ownerGrid) {
switch (keyCode) {
case Keys.Up:
case Keys.Down:
int pos = (keyCode == Keys.Up ? selectedRow - 1 : selectedRow + 1);
SelectGridEntry(GetGridEntryFromRow(pos),true);
SetFlag(FlagNoDefault, false);
return;
case Keys.Left:
if (fControl) {
// move the splitter 3 pixels to the left
MoveSplitterTo(InternalLabelWidth - 3);
return;
}
if (gridEntry.InternalExpanded)
SetExpand(gridEntry,false);
else {
// VS7 # 13336: handle non-expand/collapse case of left & right as up & down
SelectGridEntry( GetGridEntryFromRow( selectedRow - 1 ), true );
}
return;
case Keys.Right:
if (fControl) {
// move the splitter 3 pixels to the right
MoveSplitterTo(InternalLabelWidth + 3);
return;
}
if (gridEntry.Expandable) {
if (gridEntry.InternalExpanded) {
GridEntryCollection rgipes2 = gridEntry.Children;
SelectGridEntry(rgipes2.GetEntry(0),true);
}
else
SetExpand(gridEntry,true);
}
else {
// VS7 # 13336: handle non-expand/collapse case of left & right as up & down
SelectGridEntry( GetGridEntryFromRow( selectedRow + 1 ), true );
}
return;
case Keys.Return:
if (gridEntry.Expandable) {
SetExpand(gridEntry,!gridEntry.InternalExpanded);
}
else {
gridEntry.OnValueReturnKey();
}
return;
case Keys.Home:
case Keys.End:
GridEntryCollection rgipes = GetAllGridEntries();
int pos2 = (keyCode == Keys.Home ? 0 : rgipes.Count-1);
SelectGridEntry(rgipes.GetEntry(pos2),true);
return;
case Keys.Add:
case Keys.Oemplus:
case Keys.OemMinus:
case Keys.Subtract:
if (!gridEntry.Expandable) {
break;
}
SetFlag(FlagIsSpecialKey, true);
bool expand = (keyCode == Keys.Add || keyCode == Keys.Oemplus);
SetExpand(gridEntry,expand);
Invalidate();
ke.Handled = true;
return;
case Keys.D8:
if (fShift) {
goto case Keys.Multiply;
}
break;
case Keys.Multiply:
SetFlag(FlagIsSpecialKey, true);
RecursivelyExpand(gridEntry,true, true, MaxRecurseExpand);
ke.Handled = false;
return;
case Keys.Prior: //PAGE_UP:
case Keys.Next: //PAGE_DOWN
bool next = (keyCode == Keys.Next);
//int rowGoal = next ? visibleRows - 1 : 0;
int offset = next ? visibleRows - 1 : 1 - visibleRows;
int row = selectedRow;
if (fControl && !fShift) {
return;
}
if (selectedRow != -1) { // actual paging.
int start = GetScrollOffset();
SetScrollOffset(start + offset);
SetConstants();
if (GetScrollOffset() != (start + offset)) {
// we didn't make a full page
if (next) {
row = visibleRows - 1;
}
else {
row = 0;
}
}
}
SelectRow(row);
Refresh();
return;
// Copy/paste support...
case Keys.Insert:
if (fShift && !fControl && !fAlt) {
fallingThorugh = true;
goto case Keys.V;
}
goto case Keys.C;
case Keys.C:
// copy text in current property
if (fControl && !fAlt && !fShift) {
DoCopyCommand();
return;
}
break;
case Keys.Delete:
// cut text in current property
if (fShift && !fControl && !fAlt) {
fallingThorugh = true;
goto case Keys.X;
}
break;
case Keys.X:
// cut text in current property
if (fallingThorugh || (fControl && !fAlt && !fShift)) {
Clipboard.SetDataObject(gridEntry.GetPropertyTextValue());
CommitText("");
return;
}
break;
case Keys.V:
// paste the text
if (fallingThorugh || (fControl && !fAlt && !fShift)) {
DoPasteCommand();
}
break;
case Keys.A:
if (fControl && !fAlt && !fShift && Edit.Visible) {
Edit.FocusInternal();
Edit.SelectAll();
}
break;
}
}
if (gridEntry != null && ke.KeyData == (Keys.C | Keys.Alt | Keys.Shift | Keys.Control)) {
Clipboard.SetDataObject(gridEntry.GetTestingInfo());
return;
}
/* [....], VS30371 -- Due to conflicts with other VS commands,
we are removing this functionality.
// Ctrl + Shift + 'X' selects the property that starts with 'X'
if (fBoth) {
// now get the array to work with.
GridEntry[] rgipes = GetAllGridEntries();
int cLength = rgipes.Length;
// now get our char.
string strCh = (new string(new char[] {(char)ke.KeyCode})).ToLower(CultureInfo.InvariantCulture);
int cCur = -1;
if (gridEntry != null)
for (int i = 0; i < cLength; i++) {
if (rgipes[i] == gridEntry) {
cCur = i;
break;
}
}
cCur += 1; // this indicated where we start...
// find next label that starts with this letter.
for (int i = 0; i < cLength; i++) {
GridEntry ipeCur = rgipes[(i + cCur) % cLength];
if (ipeCur.PropertyLabel.ToLower(CultureInfo.InvariantCulture).StartsWith(strCh)) {
if (gridEntry != ipeCur) {
SelectGridEntry(ipeCur,true);
return;
}
break;
}
}
}
*/
ke.Handled = false;
return;
}
protected override void OnKeyPress(KeyPressEventArgs ke) {
bool fControl = false; //ke.getControl();
bool fShift = false; //ke.getShift();
bool fBoth = fControl && fShift;
if (!fBoth && WillFilterKeyPress(ke.KeyChar))
// find next property with letter typed.
FilterKeyPress(ke.KeyChar);
SetFlag(FlagIsSpecialKey, false);
}
protected override void OnMouseDown(MouseEventArgs me) {
// check for a splitter
if (me.Button == MouseButtons.Left && SplitterInside(me.X,me.Y) && totalProps != 0) {
if (!Commit()) {
return;
}
if (me.Clicks == 2) {
MoveSplitterTo(this.Width / 2);
return;
}
UnfocusSelection();
SetFlag(FlagIsSplitterMove, true);
tipInfo = -1;
CaptureInternal = true;
return;
}
// are ew on a propentry?
Point pos = FindPosition(me.X,me.Y);
if (pos == InvalidPosition) {
return;
}
// Notify that prop entry of the click...but normalize
// it's coords first...we really just need the x, y
GridEntry gridEntry = GetGridEntryFromRow(pos.Y);
if (gridEntry != null) {
// get the origin of this pe
Rectangle r = GetRectangle(pos.Y, ROWLABEL);
lastMouseDown = new Point(me.X, me.Y);
// offset the mouse points
// notify the prop entry
if (me.Button == MouseButtons.Left) {
gridEntry.OnMouseClick(me.X - r.X, me.Y - r.Y, me.Clicks, me.Button);
}
else {
SelectGridEntry(gridEntry, false);
}
lastMouseDown = InvalidPosition;
gridEntry.Focus = true;
SetFlag(FlagNoDefault, false);
}
}
// this will make tool tip go away.
protected override void OnMouseLeave(EventArgs e) {
if (!GetFlag(FlagIsSplitterMove))
Cursor = Cursors.Default; // Cursor = null;;
base.OnMouseLeave(e);
}
protected override void OnMouseMove(MouseEventArgs me) {
int rowMoveCur;
Point pt = Point.Empty;
bool onLabel = false;
if (me == null) {
rowMoveCur = -1;
pt = InvalidPosition;
}
else {
pt = FindPosition(me.X,me.Y);
if (pt == InvalidPosition || (pt.X != ROWLABEL && pt.X != ROWVALUE)) {
rowMoveCur = -1;
ToolTip.ToolTip = "";
}
else {
rowMoveCur = pt.Y;
onLabel = pt.X == ROWLABEL;
}
}
if (pt == InvalidPosition || me == null) {
return;
}
if (GetFlag(FlagIsSplitterMove)) {
MoveSplitterTo(me.X);
}
if ((rowMoveCur != this.TipRow || pt.X != this.TipColumn) && !GetFlag(FlagIsSplitterMove)) {
GridEntry gridItem = GetGridEntryFromRow(rowMoveCur);
string tip = "";
tipInfo = -1;
if (gridItem != null) {
Rectangle itemRect = GetRectangle(pt.Y, pt.X);
if (onLabel && gridItem.GetLabelToolTipLocation(me.X - itemRect.X, me.Y - itemRect.Y) != InvalidPoint) {
tip = gridItem.LabelToolTipText;
this.TipRow = rowMoveCur;
this.TipColumn = pt.X;
}
else if (!onLabel && gridItem.ValueToolTipLocation != InvalidPoint && !Edit.Focused) {
if (!this.NeedsCommit) {
tip = gridItem.GetPropertyTextValue();
}
this.TipRow = rowMoveCur;
this.TipColumn = pt.X;
}
}
// VSWhidbey 94890: Ensure that tooltips don't display when host application is not foreground app.
// Assume that we don't want to display the tooltips
IntPtr foregroundWindow = UnsafeNativeMethods.GetForegroundWindow();
if (UnsafeNativeMethods.IsChild(new HandleRef(null, foregroundWindow), new HandleRef(null, this.Handle))) {
// vs 75848 -- don't show the tips if a
// dropdown is showing
if ((dropDownHolder == null || dropDownHolder.Component == null) || rowMoveCur == selectedRow) {
ToolTip.ToolTip = tip;
}
}
else {
ToolTip.ToolTip = "";
}
}
if (totalProps != 0 && (SplitterInside(me.X,me.Y) || GetFlag(FlagIsSplitterMove))) {
Cursor = Cursors.VSplit;
}
else {
Cursor = Cursors.Default; // Cursor = null;;
}
base.OnMouseMove(me);
}
protected override void OnMouseUp(MouseEventArgs me) {
CancelSplitterMove();
}
protected override void OnMouseWheel(MouseEventArgs me) {
this.ownerGrid.OnGridViewMouseWheel(me);
HandledMouseEventArgs e = me as HandledMouseEventArgs;
if (e != null) {
if (e.Handled) {
return;
}
e.Handled = true;
}
if ((ModifierKeys & (Keys.Shift | Keys.Alt)) != 0 || MouseButtons != MouseButtons.None) {
return; // Do not scroll when Shift or Alt key is down, or when a mouse button is down.
}
int wheelScrollLines = SystemInformation.MouseWheelScrollLines;
if (wheelScrollLines == 0) {
return; // Do not scroll when the user system setting is 0 lines per notch
}
Debug.Assert(this.cumulativeVerticalWheelDelta > -NativeMethods.WHEEL_DELTA, "cumulativeVerticalWheelDelta is too small");
Debug.Assert(this.cumulativeVerticalWheelDelta < NativeMethods.WHEEL_DELTA, "cumulativeVerticalWheelDelta is too big");
// Should this only work if the Edit has focus? anyway
// we use the mouse wheel to change the values in the dropdown if it's
// an enumerable value.
//
if (selectedGridEntry != null && selectedGridEntry.Enumerable && Edit.Focused && selectedGridEntry.IsValueEditable) {
int index = GetCurrentValueIndex(selectedGridEntry);
if (index != -1) {
int delta = me.Delta > 0 ? -1 : 1;
object[] values = selectedGridEntry.GetPropertyValueList();
if (delta > 0 && index >= (values.Length - 1)) {
index = 0;
}
else if (delta < 0 && index == 0) {
index = values.Length - 1;
}
else {
index += delta;
}
CommitValue(values[index]);
SelectGridEntry(selectedGridEntry, true);
Edit.FocusInternal();
return;
}
}
int initialOffset = GetScrollOffset();
cumulativeVerticalWheelDelta += me.Delta;
float partialNotches = (float)cumulativeVerticalWheelDelta / (float)NativeMethods.WHEEL_DELTA;
int fullNotches = (int) partialNotches;
if (wheelScrollLines == -1) {
// Equivalent to large change scrolls
if (fullNotches != 0) {
int originalOffset = initialOffset;
int large = fullNotches * this.scrollBar.LargeChange;
int newOffset = Math.Max(0,initialOffset - large);
newOffset = Math.Min(newOffset, totalProps - visibleRows+1);
initialOffset -= fullNotches * this.scrollBar.LargeChange;
if (Math.Abs(initialOffset - originalOffset) >= Math.Abs(fullNotches * this.scrollBar.LargeChange)) {
this.cumulativeVerticalWheelDelta -= fullNotches * NativeMethods.WHEEL_DELTA;
}
else {
this.cumulativeVerticalWheelDelta = 0;
}
if (!ScrollRows(newOffset)) {
this.cumulativeVerticalWheelDelta = 0;
return;
}
}
}
else {
// SystemInformation.MouseWheelScrollLines doesn't work under terminal server,
// it default to the notches per scroll.
int scrollBands = (int) ((float) wheelScrollLines * partialNotches);
if (scrollBands != 0) {
if (ToolTip.Visible) {
ToolTip.ToolTip = "";
}
int newOffset = Math.Max(0,initialOffset - scrollBands);
newOffset = Math.Min(newOffset, totalProps - visibleRows+1);
if (scrollBands > 0) {
if (this.scrollBar.Value <= this.scrollBar.Minimum) {
this.cumulativeVerticalWheelDelta = 0;
}
else {
this.cumulativeVerticalWheelDelta -= (int)((float)scrollBands * ((float)NativeMethods.WHEEL_DELTA / (float)wheelScrollLines));
}
}
else {
if (this.scrollBar.Value > (scrollBar.Maximum-visibleRows+1)) {
this.cumulativeVerticalWheelDelta = 0;
}
else {
this.cumulativeVerticalWheelDelta -= (int)((float)scrollBands * ((float)NativeMethods.WHEEL_DELTA / (float)wheelScrollLines));
}
}
if (!ScrollRows(newOffset)) {
this.cumulativeVerticalWheelDelta = 0;
return;
}
}
else {
this.cumulativeVerticalWheelDelta = 0;
}
}
}
protected override void OnMove(EventArgs e) {
CloseDropDown();
}
protected override void OnPaintBackground(PaintEventArgs pe) {
}
protected override void OnPaint(PaintEventArgs pe) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnPaint");
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "On paint called. Rect=" + pe.ClipRectangle.ToString());
Graphics g = pe.Graphics;
int yPos = 0;
int startRow = 0;
int endRow = visibleRows - 1;
Rectangle clipRect = pe.ClipRectangle;
// give ourselves a little breathing room to account for lines, etc., as well
// as the entries themselves.
//
clipRect.Inflate(0,2);
try {
Size sizeWindow = this.Size;
// figure out what rows we're painting
Point posStart = FindPosition(clipRect.X, clipRect.Y);
Point posEnd = FindPosition(clipRect.X, clipRect.Y + clipRect.Height);
if (posStart != InvalidPosition) {
startRow = Math.Max(0,posStart.Y);
}
if (posEnd != InvalidPosition) {
endRow = posEnd.Y;
}
int cPropsVisible = Math.Min(totalProps - GetScrollOffset(),1+visibleRows);
#if DEBUG
GridEntry debugIPEStart = GetGridEntryFromRow(startRow);
GridEntry debugIPEEnd = GetGridEntryFromRow(endRow);
string startName = debugIPEStart == null ? null : debugIPEStart.PropertyLabel;
if (startName == null) {
startName = "(null)";
}
string endName = debugIPEEnd == null ? null : debugIPEEnd.PropertyLabel;
if (endName == null) {
endName = "(null)";
}
#endif
SetFlag(FlagNeedsRefresh, false);
//SetConstants();
Size size = this.GetOurSize();
Point loc = this.ptOurLocation;
if (GetGridEntryFromRow(cPropsVisible-1) == null) {
cPropsVisible--;
}
// if we actually have some properties, then start drawing the grid
//
if (totalProps > 0) {
// draw splitter
cPropsVisible = Math.Min(cPropsVisible, endRow+1);
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "Drawing splitter");
Pen splitterPen = new Pen(ownerGrid.LineColor, GetSplitterWidth());
splitterPen.DashStyle = DashStyle.Solid;
g.DrawLine(splitterPen, labelWidth,loc.Y,labelWidth, (cPropsVisible)*(RowHeight+1)+loc.Y);
splitterPen.Dispose();
// draw lines.
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "Drawing lines");
Pen linePen = new Pen(g.GetNearestColor(ownerGrid.LineColor));
int cHeightCurRow = 0;
int cLineEnd = loc.X + size.Width;
int cLineStart = loc.X;
// draw values.
int totalWidth = GetTotalWidth() + 1;
//g.TextColor = ownerGrid.TextColor;
// draw labels. set clip rect.
for (int i = startRow; i < cPropsVisible; i++) {
try {
// draw the line
cHeightCurRow = (i)*(RowHeight+1) + loc.Y;
g.DrawLine(linePen, cLineStart,cHeightCurRow,cLineEnd,cHeightCurRow);
// draw the value
DrawValueEntry(g,i, ref clipRect);
// draw the label
Rectangle rect = GetRectangle(i,ROWLABEL);
yPos = rect.Y + rect.Height;
DrawLabel(g,i, rect, (i==selectedRow),false, ref clipRect);
if (i == selectedRow) {
Edit.Invalidate();
}
}
catch {
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "Exception thrown during painting property " + GetGridEntryFromRow(i).PropertyLabel);
}
}
// draw the bottom line
cHeightCurRow = (cPropsVisible)*(RowHeight+1) + loc.Y;
g.DrawLine(linePen, cLineStart,cHeightCurRow,cLineEnd,cHeightCurRow);
linePen.Dispose();
}
// fill anything left with window
if (yPos < Size.Height) {
yPos++;
Rectangle clearRect = new Rectangle(1, yPos, Size.Width - 2, Size.Height - yPos - 1);
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "Filling remaining area rect=" + clearRect.ToString());
g.FillRectangle(backgroundBrush, clearRect);
}
g.DrawRectangle(SystemPens.ControlDark, 0,0,sizeWindow.Width - 1, sizeWindow.Height - 1);
fontBold = null;
}
catch {
Debug.Fail("Caught exception in OnPaint");
// Do nothing.
}
finally {
ClearCachedFontInfo();
}
}
private void OnGridEntryLabelDoubleClick(object s, EventArgs e) {
GridEntry gridEntry = (GridEntry)s;
// if we've changed since the click (probably because we moved a row into view), bail
//
if (gridEntry != lastClickedEntry) {
return;
}
int row = GetRowFromGridEntry(gridEntry);
DoubleClickRow(row, gridEntry.Expandable, ROWLABEL);
}
private void OnGridEntryValueDoubleClick(object s, EventArgs e) {
GridEntry gridEntry = (GridEntry)s;
// if we've changed since the click (probably because we moved a row into view), bail
//
if (gridEntry != lastClickedEntry) {
return;
}
int row = GetRowFromGridEntry(gridEntry);
DoubleClickRow(row, gridEntry.Expandable, ROWVALUE);
}
private void OnGridEntryLabelClick(object s, EventArgs e) {
this.lastClickedEntry = (GridEntry)s;
SelectGridEntry(lastClickedEntry, true);
}
private void OnGridEntryOutlineClick(object s, EventArgs e) {
GridEntry gridEntry = (GridEntry)s;
Debug.Assert(gridEntry.Expandable, "non-expandable IPE firing outline click");
Cursor oldCursor = Cursor;
if (!ShouldSerializeCursor()) {
oldCursor = null;
}
Cursor = Cursors.WaitCursor;
try {
SetExpand(gridEntry, !gridEntry.InternalExpanded);
SelectGridEntry(gridEntry, false);
}
finally {
Cursor = oldCursor;
}
}
private void OnGridEntryValueClick(object s, EventArgs e) {
this.lastClickedEntry = (GridEntry)s;
bool setSelectTime = s != selectedGridEntry;
SelectGridEntry(lastClickedEntry, true);
Edit.FocusInternal();
if (lastMouseDown != InvalidPosition) {
// clear the row select time so we don't interpret this as a double click.
//
rowSelectTime = 0;
Point editPoint = PointToScreen(lastMouseDown);
editPoint = Edit.PointToClientInternal(editPoint);
Edit.SendMessage(NativeMethods.WM_LBUTTONDOWN, 0, (int)(editPoint.Y << 16 | (editPoint.X & 0xFFFF)));
Edit.SendMessage(NativeMethods.WM_LBUTTONUP, 0, (int)(editPoint.Y << 16 | (editPoint.X & 0xFFFF)));
}
if (setSelectTime) {
rowSelectTime = DateTime.Now.Ticks;
rowSelectPos = PointToScreen(lastMouseDown);
}
else {
rowSelectTime = 0;
rowSelectPos = Point.Empty;
}
}
private void ClearCachedFontInfo() {
if (baseHfont != IntPtr.Zero) {
SafeNativeMethods.ExternalDeleteObject(new HandleRef(this, baseHfont));
baseHfont = IntPtr.Zero;
}
if (boldHfont != IntPtr.Zero) {
SafeNativeMethods.ExternalDeleteObject(new HandleRef(this, boldHfont));
boldHfont = IntPtr.Zero;
}
}
protected override void OnFontChanged(EventArgs e) {
ClearCachedFontInfo();
cachedRowHeight = -1;
if (this.Disposing || this.ParentInternal == null || this.ParentInternal.Disposing) {
return;
}
fontBold = null; // URT #45662 - fontBold is cached based on Font
ToolTip.Font = this.Font;
SetFlag(FlagNeedUpdateUIBasedOnFont, true);
UpdateUIBasedOnFont(true);
base.OnFontChanged(e);
if (selectedGridEntry != null) {
SelectGridEntry(selectedGridEntry, true);
}
}
protected override void OnVisibleChanged(EventArgs e) {
if (this.Disposing || this.ParentInternal == null || this.ParentInternal.Disposing) {
return;
}
if (this.Visible && this.ParentInternal != null) {
SetConstants();
if (selectedGridEntry != null) {
SelectGridEntry(selectedGridEntry, true);
}
if (toolTip != null) {
ToolTip.Font = this.Font;
}
}
base.OnVisibleChanged(e);
}
// a GridEntry recreated its children
protected virtual void OnRecreateChildren(object s, GridEntryRecreateChildrenEventArgs e) {
GridEntry parent = (GridEntry) s;
if (parent.Expanded) {
GridEntry[] entries = new GridEntry[allGridEntries.Count];
allGridEntries.CopyTo(entries, 0);
// find the index of the gridEntry that fired the event in our main list.
int parentIndex = -1;
for (int i = 0; i < entries.Length; i++) {
if (entries[i] == parent) {
parentIndex = i;
break;
}
}
Debug.Assert(parentIndex != -1, "parent GridEntry not found in allGridEntries");
// clear our existing handlers
ClearGridEntryEvents(allGridEntries, parentIndex + 1, e.OldChildCount);
// resize the array if it's changed
if (e.OldChildCount != e.NewChildCount) {
int newArraySize = entries.Length + (e.NewChildCount - e.OldChildCount);
GridEntry[] newEntries = new GridEntry[newArraySize];
// copy the existing entries up to the parent
Array.Copy(entries, 0, newEntries, 0, parentIndex + 1);
// copy the entries after the spot we'll be putting the new ones
Array.Copy(entries, parentIndex + e.OldChildCount+1, newEntries, parentIndex + e.NewChildCount+1, entries.Length - (parentIndex + e.OldChildCount + 1));
entries = newEntries;
}
// from that point, replace the children with tne new children.
GridEntryCollection children = parent.Children;
int childCount = children.Count;
Debug.Assert(childCount == e.NewChildCount, "parent reports " + childCount + " new children, event reports " + e.NewChildCount);
// replace the changed items
for (int i = 0; i < childCount; i++) {
entries[parentIndex + i + 1] = children.GetEntry(i);
}
// reset the array, rehook the handlers.
allGridEntries.Clear();
allGridEntries.AddRange(entries);
AddGridEntryEvents(allGridEntries, parentIndex + 1, childCount);
}
if (e.OldChildCount != e.NewChildCount) {
totalProps = CountPropsFromOutline(topLevelGridEntries);
SetConstants();
}
Invalidate();
}
protected override void OnResize(EventArgs e) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnResize");
Rectangle newRect = ClientRectangle;
int yDelta = lastClientRect == Rectangle.Empty ? 0 : newRect.Height - lastClientRect.Height;
bool lastRow = (selectedRow+1) == visibleRows;
// if we are hiding or showing the scroll bar, update the selected row
// or if we are changing widths
//
bool sbVisible = ScrollBar.Visible;
if (!lastClientRect.IsEmpty && newRect.Width > lastClientRect.Width) {
Rectangle rectInvalidate = new Rectangle(lastClientRect.Width-1,0,newRect.Width-lastClientRect.Width+1,lastClientRect.Height);
Invalidate(rectInvalidate);
}
if (!lastClientRect.IsEmpty && yDelta > 0) {
Rectangle rectInvalidate = new Rectangle(0,lastClientRect.Height-1,lastClientRect.Width,newRect.Height-lastClientRect.Height+1);
Invalidate(rectInvalidate);
}
int scroll = GetScrollOffset();
SetScrollOffset(0);
SetConstants();
SetScrollOffset(scroll);
CommonEditorHide();
LayoutWindow(false);
// vs 69679
bool selectionVisible = (selectedGridEntry != null && selectedRow >=0 && selectedRow <= visibleRows);
SelectGridEntry(selectedGridEntry, selectionVisible);
lastClientRect = newRect;
}
private void OnScroll(object sender, ScrollEventArgs se) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:OnScroll(" + ScrollBar.Value.ToString(CultureInfo.InvariantCulture) + " -> " + se.NewValue.ToString(CultureInfo.InvariantCulture) +")");
if (!Commit() || !IsScrollValueValid(se.NewValue)) {
// cancel the move
se.NewValue = ScrollBar.Value;
return;
}
int oldRow = -1;
GridEntry oldGridEntry = selectedGridEntry;
if (selectedGridEntry != null) {
oldRow = GetRowFromGridEntry(oldGridEntry);
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "OnScroll: SelectedGridEntry=" + oldGridEntry.PropertyLabel);
}
ScrollBar.Value = se.NewValue;
if (oldGridEntry != null) {
// we need to zero out the selected row so we don't try to commit again...since selectedRow is now bogus.
selectedRow = -1;
SelectGridEntry(oldGridEntry, (ScrollBar.Value == totalProps ? true : false));
int newRow = GetRowFromGridEntry(oldGridEntry);
if (oldRow != newRow) {
Invalidate();
}
}
else {
Invalidate();
}
}
private void OnSysColorChange(object sender, UserPreferenceChangedEventArgs e) {
if (e.Category == UserPreferenceCategory.Color || e.Category == UserPreferenceCategory.Accessibility) {
SetFlag(FlagNeedUpdateUIBasedOnFont, true);
}
}
public virtual void PopupDialog(int row) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:PopupDialog");
GridEntry gridEntry = GetGridEntryFromRow(row);
if (gridEntry != null) {
if (dropDownHolder != null && dropDownHolder.GetUsed()) {
CloseDropDown();
return;
}
bool fBtnDropDown = gridEntry.NeedsDropDownButton;
bool fEnum = gridEntry.Enumerable;
bool fBtnDialog = gridEntry.NeedsCustomEditorButton;
if (fEnum && !fBtnDropDown) {
DropDownListBox.Items.Clear();
object value = gridEntry.PropertyValue;
object[] rgItems = gridEntry.GetPropertyValueList();
int maxWidth = 0;
// The listbox draws with GDI, not GDI+. So, we
// use a normal DC here.
//
IntPtr hdc = UnsafeNativeMethods.GetDC(new HandleRef(DropDownListBox, DropDownListBox.Handle));
IntPtr hFont = Font.ToHfont();
System.Internal.HandleCollector.Add(hFont, NativeMethods.CommonHandles.GDI);
NativeMethods.TEXTMETRIC tm = new NativeMethods.TEXTMETRIC();
int iSel = -1;
try {
hFont = SafeNativeMethods.SelectObject(new HandleRef(DropDownListBox, hdc), new HandleRef(Font, hFont));
iSel = GetCurrentValueIndex(gridEntry);
if (rgItems != null && rgItems.Length > 0) {
string s;
IntNativeMethods.SIZE textSize = new IntNativeMethods.SIZE();
for (int i = 0; i < rgItems.Length; i++) {
s = gridEntry.GetPropertyTextValue(rgItems[i]);
DropDownListBox.Items.Add(s);
IntUnsafeNativeMethods.GetTextExtentPoint32(new HandleRef(DropDownListBox, hdc), s, textSize);
maxWidth = Math.Max((int) textSize.cx, maxWidth);
}
}
SafeNativeMethods.GetTextMetrics(new HandleRef(DropDownListBox, hdc), ref tm);
// border + padding + scrollbar
maxWidth += 2 + tm.tmMaxCharWidth + SystemInformation.VerticalScrollBarWidth;
hFont = SafeNativeMethods.SelectObject(new HandleRef(DropDownListBox, hdc), new HandleRef(Font, hFont));
}
finally {
SafeNativeMethods.DeleteObject(new HandleRef(Font, hFont));
UnsafeNativeMethods.ReleaseDC(new HandleRef(DropDownListBox, DropDownListBox.Handle), new HandleRef(DropDownListBox, hdc));
}
// [....], 4/25/1998 - must check for -1 and not call the set...
if (iSel != -1) {
DropDownListBox.SelectedIndex = iSel;
}
SetFlag(FlagDropDownCommit, false);
DropDownListBox.Height = Math.Max(tm.tmHeight + 2, Math.Min(MAX_LISTBOX_HEIGHT, DropDownListBox.PreferredHeight));
DropDownListBox.Width = Math.Max(maxWidth, GetRectangle(row,ROWVALUE).Width);
try {
bool resizable = DropDownListBox.Items.Count > (DropDownListBox.Height / DropDownListBox.ItemHeight);
SetFlag(FlagResizableDropDown, resizable);
DropDownControl(DropDownListBox);
}
finally {
SetFlag(FlagResizableDropDown, false);
}
Refresh();
}
else if (fBtnDialog || fBtnDropDown) {
try {
SetFlag(FlagInPropertySet, true);
Edit.DisableMouseHook = true;
try {
SetFlag(FlagResizableDropDown, gridEntry.UITypeEditor.IsDropDownResizable);
gridEntry.EditPropertyValue(this);
}
finally {
SetFlag(FlagResizableDropDown, false);
}
}
finally {
SetFlag(FlagInPropertySet, false);
Edit.DisableMouseHook = false;
}
Refresh();
// as/urt 31468 -- we can't do this because
// some dialogs are non-modal, and
// this will pull focus from them.
// See ASURT 31468.
//
//if (fBtnDialog) {
// this.Focus();
//}
if (FocusInside) {
SelectGridEntry(gridEntry, false);
}
}
}
}
internal static void PositionTooltip(Control parent, GridToolTip ToolTip, Rectangle itemRect) {
ToolTip.Visible = false;
NativeMethods.RECT rect = NativeMethods.RECT.FromXYWH(itemRect.X, itemRect.Y, itemRect.Width, itemRect.Height);
ToolTip.SendMessage(NativeMethods.TTM_ADJUSTRECT, 1, ref rect);
// now offset it back to screen coords
Point locPoint = parent.PointToScreen(new Point(rect.left, rect.top));
ToolTip.Location = locPoint; // set the position once so it updates it's size with it's real width.
int overHang = (ToolTip.Location.X + ToolTip.Size.Width) - SystemInformation.VirtualScreen.Width;
if (overHang > 0) {
locPoint.X -= overHang;
ToolTip.Location = locPoint;
}
// tell the control we've repositioned it.
ToolTip.Visible = true;
}
protected override bool ProcessDialogKey(Keys keyData) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:ProcessDialogKey");
if (HasEntries) {
Keys keyCode = keyData & Keys.KeyCode;
switch (keyCode) {
case Keys.F4:
if (FocusInside) {
return OnF4(this);
}
break;
case Keys.Tab:
if (((keyData & Keys.Control) != 0) ||
((keyData & Keys.Alt) != 0)) {
break;
}
bool forward = (keyData & Keys.Shift) == 0;
Control focusedControl = Control.FromHandleInternal(UnsafeNativeMethods.GetFocus());
if (focusedControl == null || !IsMyChild(focusedControl)) {
if (forward) {
TabSelection();
focusedControl = Control.FromHandleInternal(UnsafeNativeMethods.GetFocus());
// make sure the value actually took the focus
if (IsMyChild(focusedControl)) {
return true;
}
else {
return base.ProcessDialogKey(keyData);
}
}
else {
break;
}
}
else {
// one of our editors has focus
if (Edit.Focused) {
if (forward) {
if (DropDownButton.Visible) {
DropDownButton.FocusInternal();
return true;
}
else if (DialogButton.Visible) {
DialogButton.FocusInternal();
return true;
}
// fall through
}
else {
SelectGridEntry(GetGridEntryFromRow(selectedRow), false);
return true;
}
}
else if (DialogButton.Focused || DropDownButton.Focused) {
if (!forward && Edit.Visible) {
Edit.FocusInternal();
return true;
}
// fall through
}
}
break;
case Keys.Up:
case Keys.Down:
case Keys.Left:
case Keys.Right:
return false;
case Keys.Return:
if (DialogButton.Focused || DropDownButton.Focused) {
OnBtnClick((DialogButton.Focused ? DialogButton : DropDownButton), new EventArgs());
return true;
}
else if (selectedGridEntry != null && selectedGridEntry.Expandable) {
SetExpand(selectedGridEntry, !selectedGridEntry.InternalExpanded);
return true;
}
break;
}
}
return base.ProcessDialogKey(keyData);
}
protected virtual void RecalculateProps() {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:RecalculateProps");
int props = CountPropsFromOutline(topLevelGridEntries);
if (totalProps != props) {
totalProps = props;
ClearGridEntryEvents(allGridEntries, 0, -1);
allGridEntries = null;
}
}
internal /*public virtual*/ void RecursivelyExpand(GridEntry gridEntry, bool fInit, bool expand, int maxExpands) {
if (gridEntry == null || (expand && --maxExpands < 0)) {
return;
}
SetExpand(gridEntry, expand);
GridEntryCollection rgipes = gridEntry.Children;
if (rgipes != null)
for (int i = 0; i < rgipes.Count; i++)
RecursivelyExpand(rgipes.GetEntry(i),false, expand, maxExpands);
if (fInit) {
GridEntry ipeSelect = selectedGridEntry;
Refresh();
SelectGridEntry(ipeSelect,false);
Invalidate();
}
}
public override void Refresh() {
Refresh(false, -1, -1);
// make sure we got everything
Invalidate();
}
public void Refresh(bool fullRefresh) {
Refresh(fullRefresh, -1, -1);
}
GridPositionData positionData;
private void Refresh(bool fullRefresh, int rowStart, int rowEnd) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:Refresh");
Debug.WriteLineIf(GridViewDebugPaint.TraceVerbose, "Refresh called for rows " + rowStart.ToString(CultureInfo.InvariantCulture) + " through " + rowEnd.ToString(CultureInfo.InvariantCulture));
SetFlag(FlagNeedsRefresh, true);
GridEntry gridEntry = null;
// VSWhidbey 361345 -- there are cases here where the grid could get be disposed.
// so just bail.
if (this.IsDisposed) {
return;
}
bool pageInGridEntry = true;
if (rowStart == -1) {
rowStart = 0;
}
if (fullRefresh || this.ownerGrid.HavePropEntriesChanged()) {
if (HasEntries && !GetInPropertySet() && !Commit()) {
OnEscape(this);
}
int oldLength = totalProps;
object oldObject = topLevelGridEntries == null || topLevelGridEntries.Count == 0 ? null : ((GridEntry)topLevelGridEntries[0]).GetValueOwner();
// walk up to the main IPE and refresh it.
if (fullRefresh) {
this.ownerGrid.RefreshProperties(true);
}
if (oldLength > 0 && !GetFlag(FlagNoDefault)) {
positionData = CaptureGridPositionData();
CommonEditorHide(true);
}
UpdateHelpAttributes(selectedGridEntry, null);
selectedGridEntry = null;
SetFlag(FlagIsNewSelection, true);
topLevelGridEntries = this.ownerGrid.GetPropEntries();
ClearGridEntryEvents(allGridEntries, 0, -1);
allGridEntries = null;
RecalculateProps();
int newLength = totalProps;
if (newLength > 0) {
if (newLength < oldLength) {
SetScrollbarLength();
SetScrollOffset(0);
}
SetConstants();
if (positionData != null) {
gridEntry = positionData.Restore(this);
// Upon restoring the grid entry position, we don't
// want to page it in
//
object newObject = topLevelGridEntries == null || topLevelGridEntries.Count == 0 ? null : ((GridEntry)topLevelGridEntries[0]).GetValueOwner();
pageInGridEntry = (gridEntry == null) || oldLength != newLength || newObject != oldObject;
}
if (gridEntry == null) {
gridEntry = this.ownerGrid.GetDefaultGridEntry();
SetFlag(FlagNoDefault, gridEntry == null && totalProps > 0);
}
InvalidateRows(rowStart, rowEnd);
if (gridEntry == null) {
selectedRow = 0;
selectedGridEntry = GetGridEntryFromRow(selectedRow);
}
}
else if (oldLength == 0) {
return;
}
else {
SetConstants();
}
// Release the old positionData which contains reference to previous selected objects.
positionData = null;
lastClickedEntry = null;
}
if (!HasEntries) {
CommonEditorHide(selectedRow != -1);
this.ownerGrid.SetStatusBox(null, null);
SetScrollOffset(0);
selectedRow = -1;
Invalidate();
return;
}
// in case we added or removed properties
ownerGrid.ClearValueCaches();
InvalidateRows(rowStart, rowEnd);
if (gridEntry != null) {
SelectGridEntry(gridEntry, pageInGridEntry);
}
}
public virtual void Reset() {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:Reset");
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
if (gridEntry == null) return;
gridEntry.ResetPropertyValue();
SelectRow(selectedRow);
}
protected virtual void ResetOrigin(System.Drawing.Graphics g) {
g.ResetTransform();
}
internal void RestoreHierarchyState(ArrayList expandedItems) {
if (expandedItems == null) {
return;
}
foreach(GridEntryCollection gec in expandedItems) {
FindEquivalentGridEntry(gec);
}
}
public virtual DialogResult RunDialog(Form dialog) {
return ShowDialog(dialog);
}
internal ArrayList SaveHierarchyState(GridEntryCollection entries) {
return SaveHierarchyState(entries, null);
}
private ArrayList SaveHierarchyState(GridEntryCollection entries, ArrayList expandedItems) {
if (entries == null) {
return new ArrayList();
}
if (expandedItems == null) {
expandedItems = new ArrayList();
}
for (int i = 0; i < entries.Count; i++) {
if (((GridEntry)entries[i]).InternalExpanded) {
GridEntry entry = entries.GetEntry(i);
expandedItems.Add(GetGridEntryHierarchy(entry.Children.GetEntry(0)));
SaveHierarchyState(entry.Children, expandedItems);
}
}
return expandedItems;
}
// Scroll to the new offset
private bool ScrollRows(int newOffset) {
GridEntry ipeCur = selectedGridEntry;
if (!IsScrollValueValid(newOffset) || !Commit()) {
return false;
}
bool showEdit = Edit.Visible;
bool showBtnDropDown = DropDownButton.Visible;
bool showBtnEdit = DialogButton.Visible;
Edit.Visible = false;
DialogButton.Visible = false;
DropDownButton.Visible = false;
SetScrollOffset(newOffset);
if (ipeCur != null) {
int curRow = GetRowFromGridEntry(ipeCur);
if (curRow >=0 && curRow < visibleRows-1) {
Edit.Visible = showEdit;
DialogButton.Visible = showBtnEdit;
DropDownButton.Visible = showBtnDropDown;
SelectGridEntry(ipeCur, true);
}
else {
CommonEditorHide();
}
}
else {
CommonEditorHide();
}
Invalidate();
return true;
}
private void SelectEdit(bool caretAtEnd) {
if (edit != null) {
Edit.SelectAll();
}
}
// select functions... selectGridEntry and selectRow will select a Row
// and install the appropriate editors.
//
internal /*protected virtual*/ void SelectGridEntry(GridEntry gridEntry, bool fPageIn) {
if (gridEntry == null) return;
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:SelectGridEntry(" + gridEntry.PropertyLabel + ")");
int row = GetRowFromGridEntry(gridEntry);
if (row + GetScrollOffset() < 0) {
// throw exception? return false?
return;
}
int maxRows = (int)Math.Ceiling(((double)GetOurSize().Height)/(1+RowHeight));
// Determine whether or not we need to page-in this GridEntry
//
if (!fPageIn || (row >= 0 && row < (maxRows-1))) {
// No need to page-in: either fPageIn is false or the row is already in view
//
SelectRow(row);
}
else {
// Page-in the selected GridEntry
//
selectedRow = -1; // clear the selected row since it's no longer a valid number
int cOffset = GetScrollOffset();
if (row < 0) {
SetScrollOffset(row + cOffset);
Invalidate();
SelectRow(0);
}
else {
// try to put it one row up from the bottom
int newOffset = row + cOffset - (maxRows - 2);
if (newOffset >= ScrollBar.Minimum && newOffset < ScrollBar.Maximum) {
SetScrollOffset(newOffset);
}
Invalidate();
SelectGridEntry(gridEntry, false);
}
}
}
private void SelectRow(int row) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:SelectRow(" + row.ToString(CultureInfo.InvariantCulture) + ")");
if (!GetFlag(FlagIsNewSelection)) {
if (this.FocusInside) {
// If we're in an error state, we want to bail out of this.
if (errorState != ERROR_NONE || (row != selectedRow && !Commit())) {
return;
}
}
else {
FocusInternal();
}
}
GridEntry gridEntry = GetGridEntryFromRow(row);
// Update our reset command.
//
if (row != selectedRow) {
UpdateResetCommand(gridEntry);
}
if (GetFlag(FlagIsNewSelection) && GetGridEntryFromRow(selectedRow) == null) {
CommonEditorHide();
}
UpdateHelpAttributes(selectedGridEntry, gridEntry);
// tell the old selection it's not focused any more
if (selectedGridEntry != null) {
selectedGridEntry.Focus = false;
}
// selection not visible.
if (row < 0 || row >= visibleRows) {
CommonEditorHide();
selectedRow = row;
selectedGridEntry = gridEntry;
Refresh();
return;
}
// leave current selection.
if (gridEntry == null)
return;
bool newRow = false;
int oldSel = selectedRow;
if (selectedRow != row || !gridEntry.Equals(selectedGridEntry)) {
CommonEditorHide();
newRow = true;
}
if (!newRow)
CloseDropDown();
Rectangle rect = GetRectangle(row,ROWVALUE);
string s = gridEntry.GetPropertyTextValue();
// what components are we using?
bool fBtnDropDown = gridEntry.NeedsDropDownButton | gridEntry.Enumerable;
bool fBtnDialog = gridEntry.NeedsCustomEditorButton;
bool fEdit = gridEntry.IsTextEditable;
bool fPaint = gridEntry.IsCustomPaint;
rect.X += 1;
rect.Width -= 1;
// we want to allow builders on read-only properties
if ((fBtnDialog || fBtnDropDown) && !gridEntry.ShouldRenderReadOnly && FocusInside) {
Control btn = fBtnDropDown ? (Control)DropDownButton : (Control)DialogButton;
Size sizeBtn = new Size(SystemInformation.VerticalScrollBarArrowHeight, RowHeight);
Rectangle rectTarget = new Rectangle(rect.X+rect.Width-sizeBtn.Width,
rect.Y,
sizeBtn.Width,rect.Height);
CommonEditorUse(btn,rectTarget);
sizeBtn = btn.Size;
rect.Width -= (sizeBtn.Width);
btn.Invalidate();
}
// if we're painting the value, size the rect between the button and the painted value
if (fPaint) {
rect.X += PAINT_INDENT + 1;
rect.Width -= PAINT_INDENT + 1;
}
else {
rect.X += EDIT_INDENT + 1; // +1 to compensate for where GDI+ draws it's string relative to the rect.
rect.Width -= EDIT_INDENT + 1;
}
if ((GetFlag(FlagIsNewSelection) || !Edit.Focused) && (s != null && !s.Equals(Edit.Text))) {
Edit.Text = s;
originalTextValue = s;
Edit.SelectionStart = 0;
Edit.SelectionLength = 0;
}
Edit.AccessibleName = gridEntry.Label;
#if true // RENDERMODE
switch (inheritRenderMode) {
case RENDERMODE_BOLD:
if (gridEntry.ShouldSerializePropertyValue()) {
Edit.Font = GetBoldFont();
}
else {
Edit.Font = Font;
}
break;
case RENDERMODE_LEFTDOT:
if (gridEntry.ShouldSerializePropertyValue()) {
rect.X += (LEFTDOT_SIZE * 2);
rect.Width -= (LEFTDOT_SIZE * 2);
}
// nothing
break;
case RENDERMODE_TRIANGLE:
// nothing
break;
}
#endif
if (GetFlag(FlagIsSplitterMove) || !gridEntry.HasValue || !FocusInside) {
Edit.Visible = false;
}
else {
rect.Offset(1,1);
rect.Height -= 1;
rect.Width -= 1;
CommonEditorUse(Edit,rect);
bool drawReadOnly = gridEntry.ShouldRenderReadOnly;
Edit.ForeColor = drawReadOnly ? this.GrayTextColor : this.ForeColor;
Edit.BackColor = this.BackColor;
Edit.ReadOnly = drawReadOnly || !gridEntry.IsTextEditable;
Edit.UseSystemPasswordChar = gridEntry.ShouldRenderPassword;
}
GridEntry oldSelectedGridEntry = selectedGridEntry;
selectedRow = row;
selectedGridEntry = gridEntry;
this.ownerGrid.SetStatusBox(gridEntry.PropertyLabel,gridEntry.PropertyDescription);
// tell the new focused item that it now has focus
if (selectedGridEntry != null) {
selectedGridEntry.Focus = this.FocusInside;
}
if (!GetFlag(FlagIsNewSelection)) {
FocusInternal();
}
//
InvalidateRow(oldSel);
InvalidateRow(row);
if (FocusInside)
{
SetFlag(FlagIsNewSelection, false);
}
try {
if (selectedGridEntry != oldSelectedGridEntry) {
this.ownerGrid.OnSelectedGridItemChanged(oldSelectedGridEntry, selectedGridEntry);
}
}
catch {
}
}
public virtual void SetConstants() {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:SetConstants");
Size size = this.GetOurSize();
visibleRows = (int)Math.Ceiling(((double)size.Height)/(1+RowHeight));
size = this.GetOurSize();
if (size.Width >= 0) {
labelRatio = Math.Max(Math.Min(labelRatio, 9), 1.1);
labelWidth = ptOurLocation.X + (int) ((double)size.Width / labelRatio);
}
int oldWidth = labelWidth;
bool adjustWidth = SetScrollbarLength();
GridEntryCollection rgipesAll = GetAllGridEntries();
if (rgipesAll != null) {
int scroll = GetScrollOffset();
if ((scroll + visibleRows) >= rgipesAll.Count) {
visibleRows = rgipesAll.Count - scroll;
}
}
if (adjustWidth && size.Width >= 0) {
labelRatio = ((double) GetOurSize().Width / (double) (oldWidth - ptOurLocation.X));
//labelWidth = loc.X + (int) ((double)size.Width / labelRatio);
}
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "\tsize :" + size.ToString());
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "\tlocation :" + ptOurLocation.ToString());
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "\tvisibleRows:" + (visibleRows).ToString(CultureInfo.InvariantCulture));
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "\tlabelWidth :" + (labelWidth).ToString(CultureInfo.InvariantCulture));
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "\tlabelRatio :" + (labelRatio).ToString(CultureInfo.InvariantCulture));
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "\trowHeight :" + (RowHeight).ToString(CultureInfo.InvariantCulture));
#if DEBUG
if (rgipesAll == null) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "\tIPE Count :(null)");
}
else {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "\tIPE Count :" + (rgipesAll.Count).ToString(CultureInfo.InvariantCulture));
}
#endif
}
private void SetCommitError(short error) {
SetCommitError(error, error == ERROR_THROWN);
}
private void SetCommitError(short error, bool capture) {
#if DEBUG
if (CompModSwitches.DebugGridView.TraceVerbose) {
string err = "UNKNOWN!";
switch (error) {
case ERROR_NONE:
err = "ERROR_NONE";
break;
case ERROR_THROWN:
err = "ERROR_THROWN";
break;
case ERROR_MSGBOX_UP:
err = "ERROR_MSGBOX_UP";
break;
}
Debug.WriteLine( "PropertyGridView:SetCommitError(error=" + err + ", capture=" + capture.ToString() + ")");
}
#endif
errorState = error;
if (error != ERROR_NONE) {
CancelSplitterMove();
}
Edit.HookMouseDown = capture;
}
internal /*public virtual*/ void SetExpand(GridEntry gridEntry, bool value) {
if (gridEntry != null && gridEntry.Expandable) {
int row = GetRowFromGridEntry(gridEntry);
int countFromEnd = visibleRows - row;
int curRow = selectedRow;
// if the currently selected row is below us, we need to commit now
// or the offsets will be wrong
if (selectedRow != -1 && row < selectedRow && Edit.Visible) {
// this will cause the commit
FocusInternal();
}
int offset = GetScrollOffset();
int items = totalProps;
gridEntry.InternalExpanded = value;
RecalculateProps();
GridEntry ipeSelect = selectedGridEntry;
if (!value) {
for (GridEntry ipeCur = ipeSelect; ipeCur != null; ipeCur = ipeCur.ParentGridEntry) {
if (ipeCur.Equals(gridEntry)) {
ipeSelect = gridEntry;
}
}
}
row = GetRowFromGridEntry(gridEntry);
SetConstants();
int newItems = totalProps - items;
if (value && newItems > 0 && newItems < visibleRows && (row + (newItems)) >= visibleRows && newItems < curRow) {
// scroll to show the newly opened items.
SetScrollOffset((totalProps - items) + offset);
}
Invalidate();
SelectGridEntry(ipeSelect,false);
int scroll = GetScrollOffset();
SetScrollOffset(0);
SetConstants();
SetScrollOffset(scroll);
}
}
private void SetFlag(short flag, bool value) {
if (value) {
flags = (short)((ushort)flags|(ushort)flag);
}
else {
flags &= (short)~flag;
}
}
public virtual void SetScrollOffset(int cOffset) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:SetScrollOffset(" + cOffset.ToString(CultureInfo.InvariantCulture) + ")");
int posNew = Math.Max(0, Math.Min(totalProps - visibleRows + 1, cOffset));
int posOld = ScrollBar.Value;
if (posNew != posOld && IsScrollValueValid(posNew) && visibleRows > 0) {
ScrollBar.Value = posNew;
Invalidate();
selectedRow = GetRowFromGridEntry(selectedGridEntry);
}
}
// C#r
internal virtual bool _Commit() {
return Commit();
}
private bool Commit() {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:Commit()");
if (errorState == ERROR_MSGBOX_UP) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:Commit() returning false because an error has been thrown or we are in a property set");
return false;
}
if (!this.NeedsCommit) {
SetCommitError(ERROR_NONE);
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:Commit() returning true because no change has been made");
return true;
}
if (GetInPropertySet()) {
return false;
}
GridEntry ipeCur = GetGridEntryFromRow(selectedRow);
if (ipeCur == null) {
return true;
}
bool success = false;
try {
success = CommitText(Edit.Text);
}
finally {
if (!success) {
Edit.FocusInternal();
SelectEdit(false);
}
else {
SetCommitError(ERROR_NONE);
}
}
return success;
}
private bool CommitValue(object value) {
GridEntry ipeCur = selectedGridEntry;
if (selectedGridEntry == null && selectedRow != -1) {
ipeCur = GetGridEntryFromRow(selectedRow);
}
if (ipeCur == null) {
Debug.Fail("Committing with no selected row!");
return true;
}
return CommitValue(ipeCur, value);
}
internal bool CommitValue(GridEntry ipeCur, object value) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:CommitValue(" + (value==null ? "null" :value.ToString()) + ")");
int propCount = ipeCur.ChildCount;
bool capture = Edit.HookMouseDown;
object originalValue = null;
try {
originalValue = ipeCur.PropertyValue;
}
catch {
// if the getter is failing, we still want to let
// the set happen.
}
try {
try {
SetFlag(FlagInPropertySet, true);
//if this propentry is enumerable, then once a value is selected from the editor,
//we'll want to close the drop down (like true/false). Otherwise, if we're
//working with Anchor for ex., then we should be able to select different values
//from the editor, without having it close every time.
if (ipeCur != null &&
ipeCur.Enumerable) {
CloseDropDown();
}
try {
Edit.DisableMouseHook = true;
ipeCur.PropertyValue = value;
}
finally {
Edit.DisableMouseHook = false;
Edit.HookMouseDown = capture;
}
}
catch (Exception ex) {
SetCommitError(ERROR_THROWN);
ShowInvalidMessage(ipeCur.PropertyLabel, value, ex);
return false;
}
}
finally {
SetFlag(FlagInPropertySet, false);
}
SetCommitError(ERROR_NONE);
string text = ipeCur.GetPropertyTextValue();
if (!String.Equals(text, Edit.Text)) {
Edit.Text = text;
Edit.SelectionStart = 0;
Edit.SelectionLength = 0;
}
originalTextValue = text;
// Update our reset command.
//
UpdateResetCommand(ipeCur);
if (ipeCur.ChildCount != propCount) {
ClearGridEntryEvents(allGridEntries, 0, -1);
allGridEntries = null;
SelectGridEntry(ipeCur, true);
}
// in case this guy got disposed...
if (ipeCur.Disposed) {
bool editfocused = (edit != null && edit.Focused);
// reselect the row to find the replacement.
//
SelectGridEntry(ipeCur, true);
ipeCur = selectedGridEntry;
if (editfocused && edit != null) {
edit.Focus();
}
}
this.ownerGrid.OnPropertyValueSet(ipeCur, originalValue);
return true;
}
private bool CommitText(string text) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:CommitValue(" + (text==null ? "null" :text.ToString()) + ")");
object value = null;
GridEntry ipeCur = selectedGridEntry;
if (selectedGridEntry == null && selectedRow != -1) {
ipeCur = GetGridEntryFromRow(selectedRow);
}
if (ipeCur == null) {
Debug.Fail("Committing with no selected row!");
return true;
}
try
{
value = ipeCur.ConvertTextToValue(text);
}
catch (Exception ex)
{
SetCommitError(ERROR_THROWN);
ShowInvalidMessage(ipeCur.PropertyLabel, text, ex);
return false;
}
SetCommitError(ERROR_NONE);
return CommitValue(value);
}
internal void ReverseFocus() {
if (selectedGridEntry == null) {
FocusInternal();
}
else {
SelectGridEntry(selectedGridEntry, true);
if (DialogButton.Visible) {
DialogButton.FocusInternal();
}
else if (DropDownButton.Visible) {
DropDownButton.FocusInternal();
}
else if (Edit.Visible) {
Edit.SelectAll();
Edit.FocusInternal();
}
}
}
private bool SetScrollbarLength() {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:SetScrollBarLength");
bool sbChange = false;
if (totalProps != -1) {
if (totalProps < visibleRows) {
SetScrollOffset(0);
}
else if (GetScrollOffset() > totalProps) {
SetScrollOffset((totalProps+1) - visibleRows);
}
bool fHidden = !ScrollBar.Visible;
if (visibleRows > 0) {
ScrollBar.LargeChange = visibleRows-1;
}
ScrollBar.Maximum = Math.Max(0,totalProps - 1);
if (fHidden != (totalProps < visibleRows)) {
sbChange = true;
ScrollBar.Visible = fHidden;
Size size = GetOurSize();
if (labelWidth != -1 && size.Width > 0) {
if (labelWidth > ptOurLocation.X + size.Width) {
labelWidth = ptOurLocation.X + (int) ((double)size.Width / labelRatio);
}
else {
labelRatio = ((double) GetOurSize().Width / (double) (labelWidth - ptOurLocation.X));
}
}
Invalidate();
}
}
return sbChange;
}
///
/// Shows the given dialog, and returns its dialog result. You should always
/// use this method rather than showing the dialog directly, as this will
/// properly position the dialog and provide it a dialog owner.
///
public DialogResult /* IWindowsFormsEditorService. */ ShowDialog(Form dialog) {
// try to shift down if sitting right on top of existing owner.
if (dialog.StartPosition == FormStartPosition.CenterScreen) {
Control topControl = this;
if (topControl != null) {
while (topControl.ParentInternal != null) {
topControl = topControl.ParentInternal;
}
if (topControl.Size.Equals(dialog.Size)) {
dialog.StartPosition = FormStartPosition.Manual;
Point location = topControl.Location;
//
location.Offset(25, 25);
dialog.Location = location;
}
}
}
IntPtr priorFocus = UnsafeNativeMethods.GetFocus();
IUIService service = (IUIService)GetService(typeof(IUIService));
DialogResult result;
if (service != null) {
result = service.ShowDialog(dialog);
}
else {
result = dialog.ShowDialog(this);
}
if (priorFocus != IntPtr.Zero) {
UnsafeNativeMethods.SetFocus(new HandleRef(null, priorFocus));
}
return result;
}
private void ShowFormatExceptionMessage(string propName, object value, Exception ex)
{
if (value == null)
{
value = "(null)";
}
if (propName == null)
{
propName = "(unknown)";
}
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:ShowFormatExceptionMessage(prop=" + propName + ")");
// we have to uninstall our hook so the user can push the button!
bool hooked = Edit.HookMouseDown;
Edit.DisableMouseHook = true;
SetCommitError(ERROR_MSGBOX_UP, false);
// Fix for NdpWhidbey#28082: Before invoking the error dialog, flush all mouse messages in the message queue.
// Otherwise the click that triggered the error will still be in the queue, and will get eaten by the dialog,
// potentially causing an accidental button click. Problem occurs because we trap clicks using a system hook,
// which usually discards the message by returning 1 to GetMessage(). But this won't occur until after the
// error dialog gets closed, which is much too late.
NativeMethods.MSG mouseMsg = new NativeMethods.MSG();
while (UnsafeNativeMethods.PeekMessage(ref mouseMsg,
NativeMethods.NullHandleRef,
NativeMethods.WM_MOUSEFIRST,
NativeMethods.WM_MOUSELAST,
NativeMethods.PM_REMOVE))
;
// These things are just plain useless.
//
if (ex is System.Reflection.TargetInvocationException)
{
ex = ex.InnerException;
}
// Try to find an exception message to display
//
string exMessage = ex.Message;
bool revert = false;
while (exMessage == null || exMessage.Length == 0)
{
ex = ex.InnerException;
if (ex == null)
{
break;
}
exMessage = ex.Message;
}
IUIService uiSvc = (IUIService)GetService(typeof(IUIService));
ErrorDialog.Message = SR.GetString(SR.PBRSFormatExceptionMessage);
ErrorDialog.Text = SR.GetString(SR.PBRSErrorTitle);
ErrorDialog.Details = exMessage;
if (uiSvc != null)
{
revert = (DialogResult.Cancel == uiSvc.ShowDialog(ErrorDialog));
}
else
{
revert = (DialogResult.Cancel == this.ShowDialog(ErrorDialog));
}
Edit.DisableMouseHook = false;
if (hooked)
{
SelectGridEntry(selectedGridEntry, true);
}
SetCommitError(ERROR_THROWN, hooked);
if (revert)
{
OnEscape(Edit);
}
}
private void ShowInvalidMessage(string propName, object value, Exception ex) {
if (value == null) {
value = "(null)";
}
if (propName == null) {
propName = "(unknown)";
}
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:ShowInvalidMessage(prop=" + propName + ")");
// we have to uninstall our hook so the user can push the button!
bool hooked = Edit.HookMouseDown;
Edit.DisableMouseHook = true;
SetCommitError(ERROR_MSGBOX_UP, false);
// Fix for NdpWhidbey#28082: Before invoking the error dialog, flush all mouse messages in the message queue.
// Otherwise the click that triggered the error will still be in the queue, and will get eaten by the dialog,
// potentially causing an accidental button click. Problem occurs because we trap clicks using a system hook,
// which usually discards the message by returning 1 to GetMessage(). But this won't occur until after the
// error dialog gets closed, which is much too late.
NativeMethods.MSG mouseMsg = new NativeMethods.MSG();
while (UnsafeNativeMethods.PeekMessage(ref mouseMsg,
NativeMethods.NullHandleRef,
NativeMethods.WM_MOUSEFIRST,
NativeMethods.WM_MOUSELAST,
NativeMethods.PM_REMOVE))
;
// These things are just plain useless.
//
if (ex is System.Reflection.TargetInvocationException) {
ex = ex.InnerException;
}
// Try to find an exception message to display
//
string exMessage = ex.Message;
bool revert = false;
while (exMessage == null || exMessage.Length == 0) {
ex = ex.InnerException;
if (ex == null) {
break;
}
exMessage = ex.Message;
}
IUIService uiSvc = (IUIService)GetService(typeof(IUIService));
ErrorDialog.Message = SR.GetString(SR.PBRSErrorInvalidPropertyValue);
ErrorDialog.Text = SR.GetString(SR.PBRSErrorTitle);
ErrorDialog.Details = exMessage;
if (uiSvc != null) {
revert = (DialogResult.Cancel == uiSvc.ShowDialog(ErrorDialog));
}
else {
revert = (DialogResult.Cancel == this.ShowDialog(ErrorDialog));
}
Edit.DisableMouseHook = false;
if (hooked) {
SelectGridEntry(selectedGridEntry, true);
}
SetCommitError(ERROR_THROWN, hooked);
if (revert) {
OnEscape(Edit);
}
}
private bool SplitterInside(int x, int y) {
return(Math.Abs(x - InternalLabelWidth) < 4);
}
private void TabSelection() {
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
if (gridEntry == null)
return;
if (Edit.Visible) {
Edit.FocusInternal();
SelectEdit(false);
}
else if (dropDownHolder != null && dropDownHolder.Visible) {
dropDownHolder.FocusComponent();
return;
}
else if (currentEditor != null) {
currentEditor.FocusInternal();
}
return;
}
internal void RemoveSelectedEntryHelpAttributes() {
UpdateHelpAttributes(selectedGridEntry, null);
}
private void UpdateHelpAttributes(GridEntry oldEntry, GridEntry newEntry) {
// Update the help context with the current property
//
IHelpService hsvc = GetHelpService();
if (hsvc == null || oldEntry == newEntry) {
return;
}
GridEntry temp = oldEntry;
if (oldEntry != null && !oldEntry.Disposed) {
while (temp != null) {
hsvc.RemoveContextAttribute("Keyword", temp.HelpKeyword);
temp = temp.ParentGridEntry;
}
}
if (newEntry != null) {
temp = newEntry;
UpdateHelpAttributes(hsvc, temp, true);
}
}
private void UpdateHelpAttributes(IHelpService helpSvc, GridEntry entry, bool addAsF1) {
if (entry == null) {
return;
}
UpdateHelpAttributes(helpSvc, entry.ParentGridEntry, false);
string helpKeyword = entry.HelpKeyword;
if (helpKeyword != null) {
helpSvc.AddContextAttribute("Keyword", helpKeyword, addAsF1 ? HelpKeywordType.F1Keyword : HelpKeywordType.GeneralKeyword);
}
}
private void UpdateUIBasedOnFont(bool layoutRequired) {
if (IsHandleCreated && GetFlag(FlagNeedUpdateUIBasedOnFont)) {
try {
if (listBox != null) {
DropDownListBox.ItemHeight = RowHeight + 2;
}
if (btnDropDown != null) {
btnDropDown.Size = new Size(SystemInformation.VerticalScrollBarArrowHeight, RowHeight);
if (btnDialog != null) {
DialogButton.Size = DropDownButton.Size;
}
}
if (layoutRequired) {
LayoutWindow(true);
}
}
finally {
SetFlag(FlagNeedUpdateUIBasedOnFont, false);
}
}
}
private bool UnfocusSelection() {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:UnfocusSelection()");
GridEntry gridEntry = GetGridEntryFromRow(selectedRow);
if (gridEntry == null)
return true;
bool commit = Commit();
if (commit && this.FocusInside) {
FocusInternal();
}
return commit;
}
private void UpdateResetCommand(GridEntry gridEntry) {
if (totalProps > 0) {
IMenuCommandService mcs = (IMenuCommandService)GetService(typeof(IMenuCommandService));
if (mcs != null) {
MenuCommand reset = mcs.FindCommand(PropertyGridCommands.Reset);
if (reset != null) {
reset.Enabled = gridEntry == null ? false : gridEntry.CanResetPropertyValue();
}
}
}
}
// a mini version of process dialog key
// for responding to WM_GETDLGCODE
internal bool WantsTab(bool forward) {
if (forward) {
if (this.Focused) {
// we want a tab if the grid has focus and
// we have a button or an Edit
if (DropDownButton.Visible ||
DialogButton.Visible ||
Edit.Visible) {
return true;
}
}
else if (Edit.Focused && (DropDownButton.Visible || DialogButton.Visible)) {
// if the Edit has focus, and we have a button, we want the tab as well
return true;
}
return ownerGrid.WantsTab(forward);
}
else {
if (Edit.Focused || DropDownButton.Focused || DialogButton.Focused) {
return true;
}
return ownerGrid.WantsTab(forward);
}
}
private unsafe bool WmNotify(ref Message m) {
if (m.LParam != IntPtr.Zero) {
NativeMethods.NMHDR* nmhdr = (NativeMethods.NMHDR*)m.LParam;
if (nmhdr->hwndFrom == ToolTip.Handle) {
switch (nmhdr->code) {
case NativeMethods.TTN_POP:
break;
case NativeMethods.TTN_SHOW:
// we want to move the tooltip over where our text would be
Point mouseLoc = Cursor.Position;
// convert to window coords
mouseLoc = this.PointToClientInternal(mouseLoc);
// figure out where we are and apply the offset
mouseLoc = FindPosition(mouseLoc.X, mouseLoc.Y);
if (mouseLoc == InvalidPosition) {
break;
}
GridEntry curEntry = GetGridEntryFromRow(mouseLoc.Y);
if (curEntry == null) {
break;
}
// get the proper rectangle
Rectangle itemRect = GetRectangle(mouseLoc.Y, mouseLoc.X);
Point tipPt = Point.Empty;
// and if we need a tooltip, move the tooltip control to that point.
if (mouseLoc.X == ROWLABEL) {
tipPt = curEntry.GetLabelToolTipLocation(mouseLoc.X - itemRect.X, mouseLoc.Y - itemRect.Y);
}
else if (mouseLoc.X == ROWVALUE) {
tipPt = curEntry.ValueToolTipLocation;
}
else {
break;
}
if (tipPt != InvalidPoint) {
itemRect.Offset(tipPt);
PositionTooltip(this, ToolTip, itemRect);
m.Result = (IntPtr)1;
return true;
}
break;
}
}
}
return false;
}
protected override void WndProc(ref Message m) {
switch (m.Msg) {
case NativeMethods.WM_SYSCOLORCHANGE:
Invalidate();
break;
// [....] -- if we get focus in the error
// state, make sure we push it back to the
// Edit or bad bad things can happen with
// our state...
//
case NativeMethods.WM_SETFOCUS:
if (!GetInPropertySet() && Edit.Visible && (errorState != ERROR_NONE || !Commit())) {
base.WndProc(ref m);
Edit.FocusInternal();
return;
}
break;
case NativeMethods.WM_IME_STARTCOMPOSITION:
Edit.FocusInternal();
Edit.Clear();
UnsafeNativeMethods.PostMessage(new HandleRef(Edit, Edit.Handle), NativeMethods.WM_IME_STARTCOMPOSITION, 0, 0);
return;
case NativeMethods.WM_IME_COMPOSITION:
Edit.FocusInternal();
UnsafeNativeMethods.PostMessage(new HandleRef(Edit, Edit.Handle), NativeMethods.WM_IME_COMPOSITION, m.WParam, m.LParam);
return;
case NativeMethods.WM_GETDLGCODE:
int flags = NativeMethods.DLGC_WANTCHARS | NativeMethods.DLGC_WANTARROWS;
if (selectedGridEntry != null) {
if ((ModifierKeys & Keys.Shift) == 0) {
// if we're going backwards, we don't want the tab.
// otherwise, we only want it if we have an edit...
//
if (edit.Visible) {
flags |= NativeMethods.DLGC_WANTTAB;
}
}
}
m.Result = (IntPtr)(flags);
return;
case NativeMethods.WM_MOUSEMOVE:
// check if it's the same position, of so eat the message
if (unchecked( (int) (long)m.LParam) == lastMouseMove) {
return;
}
lastMouseMove = unchecked( (int) (long)m.LParam);
break;
case NativeMethods.WM_NOTIFY:
if (WmNotify(ref m))
return;
break;
case AutomationMessages.PGM_GETSELECTEDROW:
m.Result = (IntPtr)GetRowFromGridEntry(selectedGridEntry);
return;
case AutomationMessages.PGM_GETVISIBLEROWCOUNT:
m.Result = (IntPtr)Math.Min(visibleRows, totalProps);
return;
}
base.WndProc(ref m);
}
private class DropDownHolder : Form, IMouseHookClient {
private Control currentControl = null; // the control that is hosted in the holder
private PropertyGridView gridView; // the owner gridview
private MouseHook mouseHook; // we use this to hook mouse downs, etc. to know when to close the dropdown.
private LinkLabel createNewLink = null;
// all the resizing goo...
//
private bool resizable = true; // true if we're showing the resize widget.
private bool resizing = false; // true if we're in the middle of a resize operation.
private bool resizeUp = false; // true if the dropdown is above the grid row, which means the resize widget is at the top.
private Point dragStart = Point.Empty; // the point at which the drag started to compute the delta
private Rectangle dragBaseRect = Rectangle.Empty; // the original bounds of our control.
private int currentMoveType = MoveTypeNone; // what type of move are we processing? left, bottom, or both?
private readonly static int ResizeBarSize; // the thickness of the resize bar
private readonly static int ResizeBorderSize; // the thickness of the 2-way resize area along the outer edge of the resize bar
private readonly static int ResizeGripSize; // the size of the 4-way resize grip at outermost corner of the resize bar
private readonly static Size MinDropDownSize; // the minimum size for the control.
private Bitmap sizeGripGlyph; // our cached size grip glyph. Control paint only does right bottom glyphs, so we cache a mirrored one. See GetSizeGripGlyph
private const int DropDownHolderBorder = 1;
private const int MoveTypeNone = 0x0;
private const int MoveTypeBottom = 0x1;
private const int MoveTypeLeft = 0x2;
private const int MoveTypeTop = 0x4;
static DropDownHolder() {
MinDropDownSize = new Size(SystemInformation.VerticalScrollBarWidth * 4, SystemInformation.HorizontalScrollBarHeight * 4);
ResizeGripSize = SystemInformation.HorizontalScrollBarHeight;
ResizeBarSize = ResizeGripSize + 1;
ResizeBorderSize = ResizeBarSize / 2;
}
[
SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters") // DropDownHolder's caption is not visible.
// So we don't have to localize its text.
]
internal DropDownHolder(PropertyGridView psheet)
: base() {
this.ShowInTaskbar = false;
this.ControlBox = false;
this.MinimizeBox = false;
this.MaximizeBox = false;
this.Text = "";
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
this.AutoScaleMode = AutoScaleMode.None; // children may scale, but we won't interfere.
mouseHook = new MouseHook(this, this, psheet);
Visible = false;
gridView = psheet;
this.BackColor = gridView.BackColor;
}
protected override CreateParams CreateParams {
get {
CreateParams cp = base.CreateParams;
cp.ExStyle |= NativeMethods.WS_EX_TOOLWINDOW;
cp.Style |= NativeMethods.WS_POPUP | NativeMethods.WS_BORDER;
if (OSFeature.IsPresent(SystemParameter.DropShadow)) {
cp.ClassStyle |= NativeMethods.CS_DROPSHADOW;
}
if (gridView != null) {
cp.Parent = gridView.ParentInternal.Handle;
}
return cp;
}
}
private LinkLabel CreateNewLink {
get {
if (this.createNewLink == null) {
this.createNewLink = new LinkLabel();
this.createNewLink.LinkClicked += new LinkLabelLinkClickedEventHandler(OnNewLinkClicked);
}
return createNewLink;
}
}
public virtual bool HookMouseDown{
get{
return mouseHook.HookMouseDown;
}
set{
mouseHook.HookMouseDown = value;
}
}
///
/// This gets set to true if there isn't enough space below the currently selected
/// row for the drop down, so it appears above the row. In this case, we make the resize
/// grip appear at the top left.
///
public bool ResizeUp {
set {
if (resizeUp != value) {
// clear the glyph so we regenerate it.
//
sizeGripGlyph = null;
resizeUp = value;
if (resizable) {
this.DockPadding.Bottom = 0;
this.DockPadding.Top = 0;
if (value) {
this.DockPadding.Top = ResizeBarSize;
}
else {
this.DockPadding.Bottom = ResizeBarSize;
}
}
}
}
}
protected override void DestroyHandle() {
mouseHook.HookMouseDown = false;
base.DestroyHandle();
}
protected override void Dispose(bool disposing) {
if (disposing && createNewLink != null) {
createNewLink.Dispose();
createNewLink = null;
}
base.Dispose(disposing);
}
public void DoModalLoop() {
// Push a modal loop. This seems expensive, but I think it is a
// better user model than returning from DropDownControl immediately.
//
while (this.Visible) {
Application.DoEventsModal();
UnsafeNativeMethods.MsgWaitForMultipleObjectsEx(0, IntPtr.Zero, 250, NativeMethods.QS_ALLINPUT, NativeMethods.MWMO_INPUTAVAILABLE);
}
}
public virtual Control Component {
get {
return currentControl;
}
}
///
/// Get an InstanceCreationEditor for this entry. First, we look on the property type, and if we
/// don't find that we'll go up to the editor type itself. That way people can associate the InstanceCreationEditor with
/// the type of DropDown UIType Editor.
///
///
private InstanceCreationEditor GetInstanceCreationEditor(PropertyDescriptorGridEntry entry) {
if (entry == null) {
return null;
}
InstanceCreationEditor editor = null;
// check the property type itself. this is the default path.
//
PropertyDescriptor pd = entry.PropertyDescriptor;
if (pd != null) {
editor = pd.GetEditor(typeof(InstanceCreationEditor)) as InstanceCreationEditor;
}
// now check if there is a dropdown UI type editor. If so, use that.
//
if (editor == null) {
UITypeEditor ute = entry.UITypeEditor;
if (ute != null && ute.GetEditStyle() == UITypeEditorEditStyle.DropDown) {
editor = (InstanceCreationEditor)TypeDescriptor.GetEditor(ute, typeof(InstanceCreationEditor));
}
}
return editor;
}
///
/// Get a glyph for sizing the lower left hand grip. The code in ControlPaint only does lower-right glyphs
/// so we do some GDI+ magic to take that glyph and mirror it. That way we can still share the code (in case it changes for theming, etc),
/// not have any special cases, and possibly solve world hunger.
///
[ResourceExposure(ResourceScope.Machine)]
[ResourceConsumption(ResourceScope.Machine)]
private Bitmap GetSizeGripGlyph(Graphics g) {
if (this.sizeGripGlyph != null) {
return sizeGripGlyph;
}
// create our drawing surface based on the current graphics context.
//
sizeGripGlyph = new Bitmap(ResizeGripSize, ResizeGripSize, g);
using (Graphics glyphGraphics = Graphics.FromImage(sizeGripGlyph))
{
// mirror the image around the x-axis to get a gripper handle that works
// for the lower left.
System.Drawing.Drawing2D.Matrix m = new System.Drawing.Drawing2D.Matrix();
// basically, mirroring is just scaling by -1 on the X-axis. So any point that's like (10, 10) goes to (-10, 10).
// that mirrors it, but also moves everything to the negative axis, so we just bump the whole thing over by it's width.
//
// the +1 is because things at (0,0) stay at (0,0) since [0 * -1 = 0] so we want to get them over to the other side too.
//
// resizeUp causes the image to also be mirrored vertically so the grip can be used as a top-left grip instead of bottom-left.
//
m.Translate(ResizeGripSize + 1, (resizeUp ? ResizeGripSize + 1: 0));
m.Scale(-1, (resizeUp ? -1 : 1));
glyphGraphics.Transform = m;
ControlPaint.DrawSizeGrip(glyphGraphics, BackColor, 0, 0, ResizeGripSize, ResizeGripSize);
glyphGraphics.ResetTransform();
}
sizeGripGlyph.MakeTransparent(BackColor);
return sizeGripGlyph;
}
public virtual bool GetUsed() {
return(currentControl != null);
}
public virtual void FocusComponent() {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "DropDownHolder:FocusComponent()");
if (currentControl != null && Visible) {
currentControl.FocusInternal();
}
}
///
/// General purpose method, based on Control.Contains()...
///
/// Determines whether a given window (specified using native window handle)
/// is a descendant of this control. This catches both contained descendants
/// and 'owned' windows such as modal dialogs. Using window handles rather
/// than Control objects allows it to catch un-managed windows as well.
///
private bool OwnsWindow(IntPtr hWnd) {
while (hWnd != IntPtr.Zero) {
hWnd = UnsafeNativeMethods.GetWindowLong(new HandleRef(null, hWnd), NativeMethods.GWL_HWNDPARENT);
if (hWnd == IntPtr.Zero) {
return false;
}
if (hWnd == this.Handle) {
return true;
}
}
return false;
}
public bool OnClickHooked() {
gridView.CloseDropDownInternal(false);
return false;
}
private void OnCurrentControlResize(object o, EventArgs e) {
if (currentControl != null && !resizing) {
int oldWidth = this.Width;
Size newSize = new Size(2 * DropDownHolderBorder + currentControl.Width, 2 * DropDownHolderBorder + currentControl.Height);
if (resizable) {
newSize.Height += ResizeBarSize;
}
try {
resizing = true;
this.SuspendLayout();
this.Size = newSize;
}
finally {
resizing = false;
this.ResumeLayout(false);
}
this.Left -= (this.Width - oldWidth);
}
}
protected override void OnLayout(LayoutEventArgs levent) {
try {
resizing = true;
base.OnLayout(levent);
}
finally {
resizing = false;
}
}
private void OnNewLinkClicked(object sender, LinkLabelLinkClickedEventArgs e) {
InstanceCreationEditor ice = e.Link.LinkData as InstanceCreationEditor;
Debug.Assert(ice != null, "How do we have a link without the InstanceCreationEditor?");
if (ice != null) {
Type createType = gridView.SelectedGridEntry.PropertyType;
if (createType != null) {
gridView.CloseDropDown();
object newValue = ice.CreateInstance(gridView.SelectedGridEntry, createType);
if (newValue != null) {
// make sure we got what we asked for.
//
if (!createType.IsInstanceOfType(newValue)) {
throw new InvalidCastException(SR.GetString(SR.PropertyGridViewEditorCreatedInvalidObject, createType));
}
gridView.CommitValue(newValue);
}
}
}
}
///
/// Just figure out what kind of sizing we would do at a given drag location.
///
private int MoveTypeFromPoint(int x, int y)
{
Rectangle bGripRect = new Rectangle(0, Height - ResizeGripSize, ResizeGripSize, ResizeGripSize);
Rectangle tGripRect = new Rectangle(0, 0, ResizeGripSize, ResizeGripSize);
if (!resizeUp && bGripRect.Contains(x, y))
{
return MoveTypeLeft | MoveTypeBottom;
}
else if (resizeUp && tGripRect.Contains(x, y)) {
return MoveTypeLeft | MoveTypeTop;
}
else if (!resizeUp && Math.Abs(Height - y) < ResizeBorderSize)
{
return MoveTypeBottom;
}
else if (resizeUp && Math.Abs(y) < ResizeBorderSize)
{
return MoveTypeTop;
}
return MoveTypeNone;
}
///
/// Decide if we're going to be sizing at the given point, and if so, Capture and safe our current state.
///
protected override void OnMouseDown(MouseEventArgs e)
{
if (e.Button == MouseButtons.Left) {
this.currentMoveType = MoveTypeFromPoint(e.X, e.Y);
if (this.currentMoveType != MoveTypeNone)
{
dragStart = PointToScreen(new Point(e.X, e.Y));
dragBaseRect = Bounds;
Capture = true;
}
else {
gridView.CloseDropDown();
}
}
base.OnMouseDown (e);
}
///
/// Either set the cursor or do a move, depending on what our currentMoveType is/
///
protected override void OnMouseMove(MouseEventArgs e)
{
// not moving so just set the cursor.
//
if (this.currentMoveType == MoveTypeNone)
{
int cursorMoveType = MoveTypeFromPoint(e.X, e.Y);
switch (cursorMoveType) {
case (MoveTypeLeft | MoveTypeBottom):
Cursor = Cursors.SizeNESW;
break;
case MoveTypeBottom:
case MoveTypeTop:
Cursor = Cursors.SizeNS;
break;
case MoveTypeTop | MoveTypeLeft:
Cursor = Cursors.SizeNWSE;
break;
default:
Cursor = null;
break;
}
}
else
{
Point dragPoint = PointToScreen(new Point(e.X, e.Y));
Rectangle newBounds = Bounds;
// we're in a move operation, so do the resize.
//
if ((currentMoveType & MoveTypeBottom) == MoveTypeBottom)
{
newBounds.Height = Math.Max(MinDropDownSize.Height, dragBaseRect.Height + (dragPoint.Y - dragStart.Y));
}
// for left and top moves, we actually have to resize and move the form simultaneously.
// do to that, we compute the xdelta, and apply that to the base rectangle if it's not going to
// make the form smaller than the minimum.
//
if ((currentMoveType & MoveTypeTop) == MoveTypeTop)
{
int delta = dragPoint.Y - dragStart.Y;
if ((dragBaseRect.Height - delta) > MinDropDownSize.Height)
{
newBounds.Y = dragBaseRect.Top + delta;
newBounds.Height = dragBaseRect.Height - delta;
}
}
if ((currentMoveType & MoveTypeLeft) == MoveTypeLeft)
{
int delta = dragPoint.X - dragStart.X;
if ((dragBaseRect.Width - delta) > MinDropDownSize.Width)
{
newBounds.X = dragBaseRect.Left + delta;
newBounds.Width = dragBaseRect.Width - delta;
}
}
if (newBounds != Bounds) {
try {
resizing = true;
this.Bounds = newBounds;
}
finally {
resizing = false;
}
}
// Redraw!
//
Invalidate();
}
base.OnMouseMove (e);
}
protected override void OnMouseLeave(EventArgs e)
{
// just clear the cursor back to the default.
//
Cursor = null;
base.OnMouseLeave (e);
}
protected override void OnMouseUp(MouseEventArgs e)
{
base.OnMouseUp (e);
if (e.Button == MouseButtons.Left) {
// reset the world.
//
this.currentMoveType = MoveTypeNone;
this.dragStart = Point.Empty;
this.dragBaseRect = Rectangle.Empty;
this.Capture = false;
}
}
///
/// Just paint and draw our glyph.
///
protected override void OnPaint(PaintEventArgs pe)
{
base.OnPaint(pe);
if (resizable) {
// Draw the grip
Rectangle lRect = new Rectangle(0, resizeUp ? 0 : Height - ResizeGripSize, ResizeGripSize, ResizeGripSize);
pe.Graphics.DrawImage(GetSizeGripGlyph(pe.Graphics), lRect);
// Draw the divider
int y = resizeUp ? (ResizeBarSize - 1) : (Height - ResizeBarSize);
Pen pen = new Pen(SystemColors.ControlDark, 1);
pen.DashStyle = DashStyle.Solid;
pe.Graphics.DrawLine(pen, 0, y, Width, y);
pen.Dispose();
}
}
protected override bool ProcessDialogKey(Keys keyData) {
if ((keyData & (Keys.Shift | Keys.Control | Keys.Alt)) == 0) {
switch (keyData & Keys.KeyCode) {
case Keys.Escape:
gridView.OnEscape(this);
return true;
case Keys.F4:
gridView.F4Selection(true);
return true;
case Keys.Return:
// make sure the return gets forwarded to the control that
// is being displayed
if (gridView.UnfocusSelection() && gridView.SelectedGridEntry != null) {
gridView.SelectedGridEntry.OnValueReturnKey();
}
return true;
}
}
return base.ProcessDialogKey(keyData);
}
public void SetComponent(Control ctl, bool resizable) {
this.resizable = resizable;
this.Font = gridView.Font;
// check to see if we're going to be adding an InstanceCreationEditor
//
InstanceCreationEditor editor = (ctl == null ? null : GetInstanceCreationEditor(gridView.SelectedGridEntry as PropertyDescriptorGridEntry));
// clear any existing control we have
//
if (currentControl != null) {
currentControl.Resize -= new EventHandler(this.OnCurrentControlResize);
Controls.Remove(currentControl);
currentControl = null;
}
// remove the InstanceCreationEditor link
//
if (createNewLink != null && createNewLink.Parent == this) {
this.Controls.Remove(createNewLink);
}
// now set up the new control, top to bottom
//
if (ctl != null) {
currentControl = ctl;
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "DropDownHolder:SetComponent(" + (ctl.GetType().Name) + ")");
this.DockPadding.All = 0;
// first handle the control. If it's a listbox, make sure it's got some height
// to it.
//
if (currentControl is GridViewListBox) {
ListBox lb = (ListBox)currentControl;
if (lb.Items.Count == 0) {
lb.Height = Math.Max(lb.Height, lb.ItemHeight);
}
}
// Parent the control now. That way it can inherit our
// font and scale itself if it wants to.
try {
SuspendLayout();
Controls.Add(ctl);
Size sz = new Size(2 * DropDownHolderBorder + ctl.Width, 2 * DropDownHolderBorder + ctl.Height);
// now check for an editor, and show the link if there is one.
//
if (editor != null) {
// set up the link.
//
CreateNewLink.Text = editor.Text;
CreateNewLink.Links.Clear();
CreateNewLink.Links.Add(0, editor.Text.Length, editor);
// size it as close to the size of the text as possible.
//
int linkHeight = CreateNewLink.Height;
using (Graphics g = gridView.CreateGraphics()) {
SizeF sizef = PropertyGrid.MeasureTextHelper.MeasureText(this.gridView.ownerGrid, g, editor.Text, gridView.GetBaseFont());
linkHeight = (int)sizef.Height;
}
CreateNewLink.Height = linkHeight + DropDownHolderBorder;
// add the total height plus some border
sz.Height += (linkHeight + (DropDownHolderBorder * 2));
}
// finally, if we're resizable, add the space for the widget.
//
if (resizable) {
sz.Height += ResizeBarSize;
// we use dockpadding to save space to draw the widget.
//
if (resizeUp) {
this.DockPadding.Top = ResizeBarSize;
}
else {
this.DockPadding.Bottom = ResizeBarSize;
}
}
// set the size stuff.
//
Size = sz;
ctl.Dock = DockStyle.Fill;
ctl.Visible = true;
if (editor != null) {
CreateNewLink.Dock = DockStyle.Bottom;
Controls.Add(CreateNewLink);
}
}
finally {
ResumeLayout(true);
}
// hook the resize event.
//
currentControl.Resize += new EventHandler(this.OnCurrentControlResize);
}
Enabled = currentControl != null;
}
protected override void WndProc(ref Message m) {
if (m.Msg == NativeMethods.WM_ACTIVATE) {
SetState(STATE_MODAL, true);
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "DropDownHolder:WM_ACTIVATE()");
IntPtr activatedWindow = (IntPtr) m.LParam;
if (Visible && NativeMethods.Util.LOWORD(m.WParam) == NativeMethods.WA_INACTIVE && !this.OwnsWindow(activatedWindow)) {
gridView.CloseDropDownInternal(false);
return;
}
// prevent the IMsoComponentManager active code from getting fired.
//Active = ((int)m.WParam & 0x0000FFFF) != NativeMethods.WA_INACTIVE;
//return;
}
else if (m.Msg == NativeMethods.WM_CLOSE) {
// don't let an ALT-F4 get you down
//
if (Visible) {
gridView.CloseDropDown();
}
return;
}
base.WndProc(ref m);
}
}
private class GridViewListBox : ListBox {
internal bool fInSetSelectedIndex = false;
public GridViewListBox(PropertyGridView gridView) {
base.IntegralHeight = false;
}
protected override CreateParams CreateParams {
get {
CreateParams cp = base.CreateParams;
cp.Style &= ~NativeMethods.WS_BORDER;
cp.ExStyle &= ~NativeMethods.WS_EX_CLIENTEDGE;
return cp;
}
}
public virtual bool InSetSelectedIndex() {
return fInSetSelectedIndex;
}
protected override void OnSelectedIndexChanged(EventArgs e) {
fInSetSelectedIndex = true;
base.OnSelectedIndexChanged(e);
fInSetSelectedIndex = false;
}
}
private class GridViewEdit : TextBox , IMouseHookClient {
internal bool fInSetText = false;
internal bool filter = false;
internal PropertyGridView psheet = null;
private bool dontFocusMe = false;
private int lastMove;
private MouseHook mouseHook;
// We do this becuase the Focus call above doesn't always stick, so
// we make the Edit think that it doesn't have focus. this prevents
// ActiveControl code on the containercontrol from moving focus elsewhere
// when the dropdown closes.
public bool DontFocus {
set {
dontFocusMe = value;
}
}
public virtual bool Filter {
get { return filter;}
set {
this.filter = value;
}
}
public override bool Focused {
get {
if (dontFocusMe) {
return false;
}
return base.Focused;
}
}
public override string Text {
get {
return base.Text;
}
set {
fInSetText = true;
base.Text = value;
fInSetText = false;
}
}
public bool DisableMouseHook {
set {
mouseHook.DisableMouseHook = value;
}
}
public virtual bool HookMouseDown{
get{
return mouseHook.HookMouseDown;
}
set{
mouseHook.HookMouseDown = value;
if (value) {
this.FocusInternal();
}
}
}
public GridViewEdit(PropertyGridView psheet) {
this.psheet = psheet;
mouseHook = new MouseHook(this, this, psheet);
}
protected override void DestroyHandle() {
mouseHook.HookMouseDown = false;
base.DestroyHandle();
}
protected override void Dispose(bool disposing) {
if (disposing) {
mouseHook.Dispose();
}
base.Dispose(disposing);
}
public void FilterKeyPress(char keyChar) {
if (IsInputChar(keyChar)) {
this.FocusInternal();
this.SelectAll();
UnsafeNativeMethods.PostMessage(new HandleRef(this, Handle), NativeMethods.WM_CHAR, (IntPtr)keyChar, IntPtr.Zero);
}
}
///
/// Overridden to handle TAB key.
///
protected override bool IsInputKey(Keys keyData) {
switch (keyData & Keys.KeyCode) {
case Keys.Escape:
case Keys.Tab:
case Keys.F4:
case Keys.F1:
case Keys.Return:
return false;
}
if (psheet.NeedsCommit) {
return false;
}
return base.IsInputKey(keyData);
}
///
/// Overridden to handle TAB key.
///
protected override bool IsInputChar(char keyChar) {
switch ((Keys)(int)keyChar) {
case Keys.Tab:
case Keys.Return:
return false;
}
return base.IsInputChar(keyChar);
}
protected override void OnKeyDown(KeyEventArgs ke) {
// this is because on a dialog we may
// not get a chance to pre-process
//
if (ProcessDialogKey(ke.KeyData)) {
ke.Handled = true;
return;
}
base.OnKeyDown(ke);
}
protected override void OnKeyPress(KeyPressEventArgs ke) {
if (!IsInputChar(ke.KeyChar)) {
ke.Handled = true;
return;
}
base.OnKeyPress(ke);
}
public bool OnClickHooked() {
// can we commit this value?
// eat the value if we failed to commit.
return !psheet._Commit();
}
protected override void OnMouseEnter(EventArgs e) {
base.OnMouseEnter(e);
if (!this.Focused) {
Graphics g = CreateGraphics();
if (psheet.SelectedGridEntry != null &&
ClientRectangle.Width <= psheet.SelectedGridEntry.GetValueTextWidth(this.Text, g, this.Font)) {
psheet.ToolTip.ToolTip = this.PasswordProtect ? "" : this.Text;
}
g.Dispose();
}
}
protected override bool ProcessCmdKey(ref Message msg, Keys keyData) {
// make sure we allow the Edit to handle ctrl-z
switch (keyData & Keys.KeyCode) {
case Keys.Z:
case Keys.C:
case Keys.X:
case Keys.V:
if(
((keyData & Keys.Control) != 0) &&
((keyData & Keys.Shift) == 0) &&
((keyData & Keys.Alt) == 0)) {
return false;
}
break;
case Keys.A:
if(
((keyData & Keys.Control) != 0) &&
((keyData & Keys.Shift) == 0) &&
((keyData & Keys.Alt) == 0)) {
SelectAll();
return true;
}
break;
case Keys.Insert:
if (((keyData & Keys.Alt) == 0)) {
if (((keyData & Keys.Control) != 0) ^ ((keyData & Keys.Shift) == 0)) {
return false;
}
}
break;
case Keys.Delete:
if(
((keyData & Keys.Control) == 0) &&
((keyData & Keys.Shift) != 0) &&
((keyData & Keys.Alt) == 0)) {
return false;
}
else if(
((keyData & Keys.Control) == 0) &&
((keyData & Keys.Shift) == 0) &&
((keyData & Keys.Alt) == 0)
)
{
// if this is just the delete key and we're on a non-text editable property that is resettable,
// reset it now.
//
if (psheet.SelectedGridEntry != null && !psheet.SelectedGridEntry.Enumerable && !psheet.SelectedGridEntry.IsTextEditable && psheet.SelectedGridEntry.CanResetPropertyValue()) {
object oldValue = psheet.SelectedGridEntry.PropertyValue;
psheet.SelectedGridEntry.ResetPropertyValue();
psheet.UnfocusSelection();
psheet.ownerGrid.OnPropertyValueSet(psheet.SelectedGridEntry, oldValue);
}
}
break;
}
return base.ProcessCmdKey(ref msg, keyData);
}
///
/// Overrides Control.ProcessDialogKey to handle the Escape and Return
/// keys.
///
///
/// Sets up the needed windows hooks to catch messages.
///
///
/// HookProc used for catch mouse messages.
///
///
/// Removes the windowshook that was installed.
///
///
/// Forwards messageHook calls to ToolTip.messageHookProc
///
///
/// The accessible object class for a PropertyGridView. The child accessible objects
/// are accessible objects corresponding to the property grid entries.
///
[System.Runtime.InteropServices.ComVisible(true)]
internal class PropertyGridViewAccessibleObject : ControlAccessibleObject {
///
/// Construct a PropertyGridViewAccessibleObject
///
public PropertyGridViewAccessibleObject(PropertyGridView owner) : base(owner) {
}
public override string Name {
get {
string name = Owner.AccessibleName;
if (name != null) {
return name;
}
else {
return SR.GetString(SR.PropertyGridDefaultAccessibleName);
}
}
}
public override AccessibleRole Role {
get {
AccessibleRole role = Owner.AccessibleRole;
if (role != AccessibleRole.Default) {
return role;
}
else {
return AccessibleRole.Table;
}
}
}
public AccessibleObject Next(GridEntry current) {
int row = ((PropertyGridView)Owner).GetRowFromGridEntry(current);
GridEntry nextEntry = ((PropertyGridView)Owner).GetGridEntryFromRow(++row);
if (nextEntry != null) {
return nextEntry.AccessibilityObject;
}
return null;
}
public AccessibleObject Previous(GridEntry current) {
int row = ((PropertyGridView)Owner).GetRowFromGridEntry(current);
GridEntry prevEntry = ((PropertyGridView)Owner).GetGridEntryFromRow(--row);
if (prevEntry != null) {
return prevEntry.AccessibilityObject;
}
return null;
}
///
/// Get the accessible child at the given index.
/// The accessible children of a PropertyGridView are accessible objects
/// corresponding to the property grid entries.
///
public override AccessibleObject GetChild(int index) {
GridEntryCollection properties = ((PropertyGridView)Owner).AccessibilityGetGridEntries();
if (properties != null && index >= 0 && index < properties.Count) {
return properties.GetEntry(index).AccessibilityObject;
}
else {
return null;
}
}
///
/// Get the number of accessible children.
/// The accessible children of a PropertyGridView are accessible objects
/// corresponding to the property grid entries.
///
public override int GetChildCount() {
GridEntryCollection properties = ((PropertyGridView)Owner).AccessibilityGetGridEntries();
if (properties != null) {
return properties.Count;
}
else {
return 0;
}
}
///
/// Get the accessible object for the currently focused grid entry.
///
public override AccessibleObject GetFocused() {
GridEntry gridEntry = ((PropertyGridView)Owner).SelectedGridEntry;
if (gridEntry != null && gridEntry.Focus) {
return gridEntry.AccessibilityObject;
}
return null;
}
///
/// Get the accessible object for the currently selected grid entry.
///
public override AccessibleObject GetSelected() {
GridEntry gridEntry = ((PropertyGridView)Owner).SelectedGridEntry;
if (gridEntry != null) {
return gridEntry.AccessibilityObject;
}
return null;
}
///
/// Get the accessible child at the given screen location.
/// The accessible children of a PropertyGridView are accessible objects
/// corresponding to the property grid entries.
///
public override AccessibleObject HitTest(int x, int y) {
// Convert to client coordinates
//
NativeMethods.POINT pt = new NativeMethods.POINT(x, y);
UnsafeNativeMethods.ScreenToClient(new HandleRef(Owner, Owner.Handle), pt);
// Find the grid entry at the given client coordinates
//
Point pos = ((PropertyGridView)Owner).FindPosition(pt.x, pt.y);
if (pos != PropertyGridView.InvalidPosition) {
GridEntry gridEntry = ((PropertyGridView)Owner).GetGridEntryFromRow(pos.Y);
if (gridEntry != null) {
// Return the accessible object for this grid entry
//
return gridEntry.AccessibilityObject;
}
}
// No grid entry at this point
//
return null;
}
///
/// Navigate to another object.
///
[SecurityPermission(SecurityAction.Demand, Flags = SecurityPermissionFlag.UnmanagedCode)]
public override AccessibleObject Navigate(AccessibleNavigation navdir) {
if (GetChildCount() > 0) {
// We're only handling FirstChild and LastChild here
switch(navdir) {
case AccessibleNavigation.FirstChild:
return GetChild(0);
case AccessibleNavigation.LastChild:
return GetChild(GetChildCount() - 1);
}
}
return null; // Perform default behavior
}
}
internal class GridPositionData {
ArrayList expandedState;
GridEntryCollection selectedItemTree;
int itemRow;
int itemCount;
public GridPositionData(PropertyGridView gridView) {
selectedItemTree = gridView.GetGridEntryHierarchy(gridView.selectedGridEntry);
expandedState = gridView.SaveHierarchyState(gridView.topLevelGridEntries);
itemRow = gridView.selectedRow;
itemCount = gridView.totalProps;
}
public GridEntry Restore(PropertyGridView gridView) {
gridView.RestoreHierarchyState(expandedState);
GridEntry entry = gridView.FindEquivalentGridEntry(selectedItemTree);
if (entry != null) {
gridView.SelectGridEntry(entry, true);
int delta = gridView.selectedRow - itemRow;
if (delta != 0 && gridView.ScrollBar.Visible) {
if (itemRow < gridView.visibleRows) {
delta += gridView.GetScrollOffset();
if (delta < 0) {
delta = 0;
}
else if (delta > gridView.ScrollBar.Maximum) {
delta = gridView.ScrollBar.Maximum - 1;
}
gridView.SetScrollOffset(delta);
}
}
}
return entry;
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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- XmlReflectionImporter.cs
- ConditionalDesigner.cs
- MergePropertyDescriptor.cs
- ExpressionBuilderContext.cs
- OleDbStruct.cs
- _Win32.cs
- BaseValidator.cs
- StorageTypeMapping.cs
- EmptyCollection.cs
- PhysicalFontFamily.cs
- XmlSchemaProviderAttribute.cs
- LogicalCallContext.cs
- FileStream.cs
- ResourceAttributes.cs
- CurrencyWrapper.cs
- AnimationLayer.cs
- PropertyMapper.cs
- OutputCacheModule.cs
- Helpers.cs
- CurrentTimeZone.cs
- XmlTypeAttribute.cs
- ProtocolViolationException.cs
- MailSettingsSection.cs
- LabelDesigner.cs
- Stackframe.cs
- ErrorProvider.cs
- _LazyAsyncResult.cs
- StreamGeometry.cs
- DescendantBaseQuery.cs
- ParameterInfo.cs
- RadioButton.cs
- BinHexEncoder.cs
- EnumType.cs
- TagPrefixCollection.cs
- TrustManagerMoreInformation.cs
- SystemMulticastIPAddressInformation.cs
- ImportCatalogPart.cs
- ListViewCommandEventArgs.cs
- RunWorkerCompletedEventArgs.cs
- D3DImage.cs
- ToolZone.cs
- InsufficientMemoryException.cs
- ProxyWebPart.cs
- TableProvider.cs
- RegistrySecurity.cs
- OrderByBuilder.cs
- SingleConverter.cs
- ImageIndexConverter.cs
- ErrorStyle.cs
- CommonProperties.cs
- MemoryRecordBuffer.cs
- DataServiceProviderMethods.cs
- JsonQueryStringConverter.cs
- HybridDictionary.cs
- CheckBoxList.cs
- Path.cs
- DataRowView.cs
- HttpRequest.cs
- TransportChannelListener.cs
- ProfilePropertySettingsCollection.cs
- StringBuilder.cs
- EnumerableCollectionView.cs
- StructuredType.cs
- SafeCertificateContext.cs
- AssemblyFilter.cs
- MessageDecoder.cs
- DefaultSection.cs
- AsymmetricSignatureFormatter.cs
- AutomationFocusChangedEventArgs.cs
- ConditionalAttribute.cs
- TextTreeTextNode.cs
- GenericQueueSurrogate.cs
- TextWriter.cs
- DataGridrowEditEndingEventArgs.cs
- AssemblyAttributes.cs
- TransactionInformation.cs
- PointConverter.cs
- ObjectDataSourceSelectingEventArgs.cs
- ToolboxItemLoader.cs
- OdbcReferenceCollection.cs
- Section.cs
- XmlKeywords.cs
- DesignerCategoryAttribute.cs
- ColorTransformHelper.cs
- TransformerInfo.cs
- CodeObjectCreateExpression.cs
- CachedTypeface.cs
- HttpModuleAction.cs
- AudioFormatConverter.cs
- Binding.cs
- ShapeTypeface.cs
- ZipIOExtraFieldElement.cs
- GridViewColumn.cs
- MulticastOption.cs
- TextElement.cs
- Switch.cs
- TemplateModeChangedEventArgs.cs
- _FixedSizeReader.cs
- OleDbPermission.cs
- XmlIgnoreAttribute.cs