Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / WinForms / Managed / System / WinForms / PropertyGridInternal / CategoryGridEntry.cs / 1 / CategoryGridEntry.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
//#define PAINT_CATEGORY_TRIANGLE
/*
*/
namespace System.Windows.Forms.PropertyGridInternal {
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System;
using System.Collections;
using System.Reflection;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Windows.Forms;
using System.Drawing;
using Microsoft.Win32;
internal class CategoryGridEntry : GridEntry {
internal string name;
private Brush backBrush = null;
private static Hashtable categoryStates = null;
[
SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors") // GridEntry classes are internal so we have complete
// control over who does what in the constructor.
]
public CategoryGridEntry(PropertyGrid ownerGrid, GridEntry peParent,string name, GridEntry[] childGridEntries)
: base(ownerGrid, peParent) {
this.name = name;
#if DEBUG
for (int n = 0;n < childGridEntries.Length; n++) {
Debug.Assert(childGridEntries[n] != null, "Null item in category subproperty list");
}
#endif
if (categoryStates == null) {
categoryStates = new Hashtable();
}
lock (categoryStates) {
if (!categoryStates.ContainsKey(name)) {
categoryStates.Add(name, true);
}
}
this.IsExpandable = true;
for (int i = 0; i < childGridEntries.Length; i++) {
childGridEntries[i].ParentGridEntry = this;
}
this.ChildCollection = new GridEntryCollection(this, childGridEntries);
lock (categoryStates) {
this.InternalExpanded = (bool)categoryStates[name];
}
this.SetFlag(GridEntry.FLAG_LABEL_BOLD,true);
}
///
/// Returns true if this GridEntry has a value field in the right hand column.
///
internal override bool HasValue {
get {
return false;
}
}
protected override void Dispose(bool disposing) {
if (disposing) {
if (backBrush != null) {
backBrush.Dispose();
backBrush = null;
}
if (ChildCollection != null) {
ChildCollection = null;
}
}
base.Dispose(disposing);
}
public override void DisposeChildren() {
// categories should never dispose
//
return;
}
// we don't want this guy participating in property depth.
public override int PropertyDepth {
get {
return base.PropertyDepth - 1;
}
}
protected override Brush GetBackgroundBrush(Graphics g) {
return this.GridEntryHost.GetLineBrush(g);
}
protected override Color LabelTextColor {
get {
return ownerGrid.CategoryForeColor;
}
}
public override bool Expandable {
get {
return !GetFlagSet(FL_EXPANDABLE_FAILED);
}
}
internal override bool InternalExpanded {
set {
base.InternalExpanded = value;
lock (categoryStates) {
categoryStates[this.name] = value;
}
}
}
public override GridItemType GridItemType {
get {
return GridItemType.Category;
}
}
public override string HelpKeyword {
get {
return null;
}
}
public override string PropertyLabel {
get {
return name;
}
}
internal override int PropertyLabelIndent {
get {
// we give an extra pixel for breathing room
// we want to make sure that we return 0 for property depth here instead of
PropertyGridView gridHost = this.GridEntryHost;
// we call base.PropertyDepth here because we don't want the subratction to happen.
return 1+gridHost.GetOutlineIconSize()+OUTLINE_ICON_PADDING + (base.PropertyDepth * gridHost.GetDefaultOutlineIndent());
}
}
public override string GetPropertyTextValue(object o) {
return "";
}
public override Type PropertyType {
get {
return typeof(void);
}
}
///
/// Gets the owner of the current value. This is usually the value of the
/// root entry, which is the object being browsed
///
public override object GetChildValueOwner(GridEntry childEntry) {
return ParentGridEntry.GetChildValueOwner(childEntry);
}
protected override bool CreateChildren(bool diffOldChildren) {
return true;
}
public override string GetTestingInfo() {
string str = "object = (";
str += FullLabel;
str += "), Category = (" + this.PropertyLabel + ")";
return str;
}
public override void PaintLabel(System.Drawing.Graphics g, Rectangle rect, Rectangle clipRect, bool selected, bool paintFullLabel) {
base.PaintLabel(g, rect, clipRect, false, true);
// now draw the focus rect
if (selected && hasFocus) {
bool bold = ((this.Flags & GridEntry.FLAG_LABEL_BOLD) != 0);
Font font = GetFont(bold);
int labelWidth = GetLabelTextWidth(this.PropertyLabel, g, font);
int indent = PropertyLabelIndent-2;
Rectangle focusRect = new Rectangle(indent, rect.Y, labelWidth+3, rect.Height-1);
ControlPaint.DrawFocusRectangle(g, focusRect);
}
// draw the line along the top
if (parentPE.GetChildIndex(this) > 0) {
g.DrawLine(SystemPens.Control, rect.X-1, rect.Y-1, rect.Width+2, rect.Y - 1);
}
}
#if PAINT_CATEGORY_TRIANGLE
private const double TRI_HEIGHT_RATIO = 2.5;
private static readonly double TRI_WIDTH_RATIO = .8;
#endif
public override void PaintOutline(System.Drawing.Graphics g, Rectangle r) {
// draw outline pointer triangle.
if (Expandable) {
bool fExpanded = Expanded;
Rectangle outline = OutlineRect;
// make sure we're in our bounds
outline = Rectangle.Intersect(r, outline);
if (outline.IsEmpty) {
return;
}
#if PAINT_CATEGORY_TRIANGLE
// bump it over a pixel
//outline.Offset(1, 0);
//outline.Inflate(-1,-1);
// build the triangle, an equalaterial centered around the midpoint of the rect.
Point[] points = new Point[3];
int borderWidth = 2;
// width is always the length of the sides of the triangle.
// Height = (width /2 * (Cos60)) ; Cos60 ~ .86
int triWidth, triHeight;
int xOffset, yOffset;
if (!fExpanded) {
// draw arrow pointing right, remember height is pointing right
// 0
// |\
// | \2
// | /
// |/
// 1
triWidth = (int)((outline.Height * TRI_WIDTH_RATIO) - (2*borderWidth));
// make sure it's an odd width so our lines will match up
if (!(triWidth % 2 == 0)) {
triWidth++;
}
triHeight = (int)Math.Ceil((triWidth/2) * TRI_HEIGHT_RATIO);
yOffset = outline.Y + (outline.Height-triWidth)/2;
xOffset = outline.X + (outline.Width-triHeight)/2;
points[0] = new Point(xOffset, yOffset);
points[1] = new Point(xOffset, yOffset + triWidth);
points[2] = new Point(xOffset+triHeight, yOffset + (triWidth / 2));
}
else {
// draw arrow pointing down
// 0 -------- 1
// \ /
// \ /
// \ /
// \/
// 2
triWidth = (int)((outline.Width * TRI_WIDTH_RATIO) - (2*borderWidth));
// make sure it's an odd width so our lines will match up
if (!(triWidth % 2 == 0)) {
triWidth++;
}
triHeight = (int)Math.Ceil((triWidth/2) * TRI_HEIGHT_RATIO);
xOffset = outline.X + (outline.Width-triWidth)/2;
yOffset = outline.Y + (outline.Height-triHeight)/2;
points[0] = new Point(xOffset, yOffset);
points[1] = new Point(xOffset + triWidth, yOffset);
points[2] = new Point(xOffset + (triWidth/ 2),yOffset + triHeight);
}
g.FillPolygon(SystemPens.WindowText, points);
#else
// draw border area box
Brush b;
Pen p;
bool disposeBrush = false;
bool disposePen = false;
Color color = GridEntryHost.GetLineColor();
b = new SolidBrush(g.GetNearestColor(color));
disposeBrush = true;
color = GridEntryHost.GetTextColor();
p = new Pen(g.GetNearestColor(color));
disposePen = true;
g.FillRectangle(b, outline);
g.DrawRectangle(p, outline.X, outline.Y, outline.Width - 1, outline.Height - 1);
// draw horizontal line for +/-
int indent = 2;
g.DrawLine(SystemPens.WindowText, outline.X + indent,outline.Y + outline.Height / 2,
outline.X + outline.Width - indent - 1,outline.Y + outline.Height/2);
// draw vertical line to make a +
if (!fExpanded)
g.DrawLine(SystemPens.WindowText, outline.X + outline.Width/2, outline.Y + indent,
outline.X + outline.Width/2, outline.Y + outline.Height - indent - 1);
if (disposePen) p.Dispose();
if (disposeBrush) b.Dispose();
#endif
}
}
public override void PaintValue(object val, System.Drawing.Graphics g, Rectangle rect, Rectangle clipRect, PaintValueFlags paintFlags) {
base.PaintValue(val, g, rect, clipRect, paintFlags & ~PaintValueFlags.DrawSelected);
// draw the line along the top
if (parentPE.GetChildIndex(this) > 0) {
g.DrawLine(SystemPens.Control, rect.X-2, rect.Y-1,rect.Width+1, rect.Y-1);
}
}
internal override bool NotifyChildValue(GridEntry pe, int type) {
return parentPE.NotifyChildValue(pe, type);
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
//#define PAINT_CATEGORY_TRIANGLE
/*
*/
namespace System.Windows.Forms.PropertyGridInternal {
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System;
using System.Collections;
using System.Reflection;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Windows.Forms;
using System.Drawing;
using Microsoft.Win32;
internal class CategoryGridEntry : GridEntry {
internal string name;
private Brush backBrush = null;
private static Hashtable categoryStates = null;
[
SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors") // GridEntry classes are internal so we have complete
// control over who does what in the constructor.
]
public CategoryGridEntry(PropertyGrid ownerGrid, GridEntry peParent,string name, GridEntry[] childGridEntries)
: base(ownerGrid, peParent) {
this.name = name;
#if DEBUG
for (int n = 0;n < childGridEntries.Length; n++) {
Debug.Assert(childGridEntries[n] != null, "Null item in category subproperty list");
}
#endif
if (categoryStates == null) {
categoryStates = new Hashtable();
}
lock (categoryStates) {
if (!categoryStates.ContainsKey(name)) {
categoryStates.Add(name, true);
}
}
this.IsExpandable = true;
for (int i = 0; i < childGridEntries.Length; i++) {
childGridEntries[i].ParentGridEntry = this;
}
this.ChildCollection = new GridEntryCollection(this, childGridEntries);
lock (categoryStates) {
this.InternalExpanded = (bool)categoryStates[name];
}
this.SetFlag(GridEntry.FLAG_LABEL_BOLD,true);
}
///
/// Returns true if this GridEntry has a value field in the right hand column.
///
internal override bool HasValue {
get {
return false;
}
}
protected override void Dispose(bool disposing) {
if (disposing) {
if (backBrush != null) {
backBrush.Dispose();
backBrush = null;
}
if (ChildCollection != null) {
ChildCollection = null;
}
}
base.Dispose(disposing);
}
public override void DisposeChildren() {
// categories should never dispose
//
return;
}
// we don't want this guy participating in property depth.
public override int PropertyDepth {
get {
return base.PropertyDepth - 1;
}
}
protected override Brush GetBackgroundBrush(Graphics g) {
return this.GridEntryHost.GetLineBrush(g);
}
protected override Color LabelTextColor {
get {
return ownerGrid.CategoryForeColor;
}
}
public override bool Expandable {
get {
return !GetFlagSet(FL_EXPANDABLE_FAILED);
}
}
internal override bool InternalExpanded {
set {
base.InternalExpanded = value;
lock (categoryStates) {
categoryStates[this.name] = value;
}
}
}
public override GridItemType GridItemType {
get {
return GridItemType.Category;
}
}
public override string HelpKeyword {
get {
return null;
}
}
public override string PropertyLabel {
get {
return name;
}
}
internal override int PropertyLabelIndent {
get {
// we give an extra pixel for breathing room
// we want to make sure that we return 0 for property depth here instead of
PropertyGridView gridHost = this.GridEntryHost;
// we call base.PropertyDepth here because we don't want the subratction to happen.
return 1+gridHost.GetOutlineIconSize()+OUTLINE_ICON_PADDING + (base.PropertyDepth * gridHost.GetDefaultOutlineIndent());
}
}
public override string GetPropertyTextValue(object o) {
return "";
}
public override Type PropertyType {
get {
return typeof(void);
}
}
///
/// Gets the owner of the current value. This is usually the value of the
/// root entry, which is the object being browsed
///
public override object GetChildValueOwner(GridEntry childEntry) {
return ParentGridEntry.GetChildValueOwner(childEntry);
}
protected override bool CreateChildren(bool diffOldChildren) {
return true;
}
public override string GetTestingInfo() {
string str = "object = (";
str += FullLabel;
str += "), Category = (" + this.PropertyLabel + ")";
return str;
}
public override void PaintLabel(System.Drawing.Graphics g, Rectangle rect, Rectangle clipRect, bool selected, bool paintFullLabel) {
base.PaintLabel(g, rect, clipRect, false, true);
// now draw the focus rect
if (selected && hasFocus) {
bool bold = ((this.Flags & GridEntry.FLAG_LABEL_BOLD) != 0);
Font font = GetFont(bold);
int labelWidth = GetLabelTextWidth(this.PropertyLabel, g, font);
int indent = PropertyLabelIndent-2;
Rectangle focusRect = new Rectangle(indent, rect.Y, labelWidth+3, rect.Height-1);
ControlPaint.DrawFocusRectangle(g, focusRect);
}
// draw the line along the top
if (parentPE.GetChildIndex(this) > 0) {
g.DrawLine(SystemPens.Control, rect.X-1, rect.Y-1, rect.Width+2, rect.Y - 1);
}
}
#if PAINT_CATEGORY_TRIANGLE
private const double TRI_HEIGHT_RATIO = 2.5;
private static readonly double TRI_WIDTH_RATIO = .8;
#endif
public override void PaintOutline(System.Drawing.Graphics g, Rectangle r) {
// draw outline pointer triangle.
if (Expandable) {
bool fExpanded = Expanded;
Rectangle outline = OutlineRect;
// make sure we're in our bounds
outline = Rectangle.Intersect(r, outline);
if (outline.IsEmpty) {
return;
}
#if PAINT_CATEGORY_TRIANGLE
// bump it over a pixel
//outline.Offset(1, 0);
//outline.Inflate(-1,-1);
// build the triangle, an equalaterial centered around the midpoint of the rect.
Point[] points = new Point[3];
int borderWidth = 2;
// width is always the length of the sides of the triangle.
// Height = (width /2 * (Cos60)) ; Cos60 ~ .86
int triWidth, triHeight;
int xOffset, yOffset;
if (!fExpanded) {
// draw arrow pointing right, remember height is pointing right
// 0
// |\
// | \2
// | /
// |/
// 1
triWidth = (int)((outline.Height * TRI_WIDTH_RATIO) - (2*borderWidth));
// make sure it's an odd width so our lines will match up
if (!(triWidth % 2 == 0)) {
triWidth++;
}
triHeight = (int)Math.Ceil((triWidth/2) * TRI_HEIGHT_RATIO);
yOffset = outline.Y + (outline.Height-triWidth)/2;
xOffset = outline.X + (outline.Width-triHeight)/2;
points[0] = new Point(xOffset, yOffset);
points[1] = new Point(xOffset, yOffset + triWidth);
points[2] = new Point(xOffset+triHeight, yOffset + (triWidth / 2));
}
else {
// draw arrow pointing down
// 0 -------- 1
// \ /
// \ /
// \ /
// \/
// 2
triWidth = (int)((outline.Width * TRI_WIDTH_RATIO) - (2*borderWidth));
// make sure it's an odd width so our lines will match up
if (!(triWidth % 2 == 0)) {
triWidth++;
}
triHeight = (int)Math.Ceil((triWidth/2) * TRI_HEIGHT_RATIO);
xOffset = outline.X + (outline.Width-triWidth)/2;
yOffset = outline.Y + (outline.Height-triHeight)/2;
points[0] = new Point(xOffset, yOffset);
points[1] = new Point(xOffset + triWidth, yOffset);
points[2] = new Point(xOffset + (triWidth/ 2),yOffset + triHeight);
}
g.FillPolygon(SystemPens.WindowText, points);
#else
// draw border area box
Brush b;
Pen p;
bool disposeBrush = false;
bool disposePen = false;
Color color = GridEntryHost.GetLineColor();
b = new SolidBrush(g.GetNearestColor(color));
disposeBrush = true;
color = GridEntryHost.GetTextColor();
p = new Pen(g.GetNearestColor(color));
disposePen = true;
g.FillRectangle(b, outline);
g.DrawRectangle(p, outline.X, outline.Y, outline.Width - 1, outline.Height - 1);
// draw horizontal line for +/-
int indent = 2;
g.DrawLine(SystemPens.WindowText, outline.X + indent,outline.Y + outline.Height / 2,
outline.X + outline.Width - indent - 1,outline.Y + outline.Height/2);
// draw vertical line to make a +
if (!fExpanded)
g.DrawLine(SystemPens.WindowText, outline.X + outline.Width/2, outline.Y + indent,
outline.X + outline.Width/2, outline.Y + outline.Height - indent - 1);
if (disposePen) p.Dispose();
if (disposeBrush) b.Dispose();
#endif
}
}
public override void PaintValue(object val, System.Drawing.Graphics g, Rectangle rect, Rectangle clipRect, PaintValueFlags paintFlags) {
base.PaintValue(val, g, rect, clipRect, paintFlags & ~PaintValueFlags.DrawSelected);
// draw the line along the top
if (parentPE.GetChildIndex(this) > 0) {
g.DrawLine(SystemPens.Control, rect.X-2, rect.Y-1,rect.Width+1, rect.Y-1);
}
}
internal override bool NotifyChildValue(GridEntry pe, int type) {
return parentPE.NotifyChildValue(pe, type);
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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