Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WinForms / System / WinForms / Design / ToolStripDesignerUtils.cs / 1 / ToolStripDesignerUtils.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Windows.Forms.Design {
using System;
using System.Windows.Forms;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Collections;
using System.Drawing;
using System.Drawing.Design;
using System.Collections.Generic;
using Microsoft.Win32;
using System.Security;
using System.Security.Permissions;
using System.Reflection;
using System.Windows.Forms.Design.Behavior;
internal sealed class ToolStripDesignerUtils {
private static Type toolStripItemType = typeof(System.Windows.Forms.ToolStripItem);
[ThreadStatic]
private static Dictionary CachedToolboxItems;
[ThreadStatic]
private static int CustomToolStripItemCount = 0;
private const int TOOLSTRIPCHARCOUNT = 9;
// used to cache in the selection.
// This is used when the selection is changing and we need to invalidate the original selection
// Especially, when the selection is changed through NON UI designer action like through propertyGrid or through Doc Outline.
public static ArrayList originalSelComps;
[ThreadStatic]
private static Dictionary CachedWinformsImages;
private static string systemWindowsFormsNamespace = typeof(System.Windows.Forms.ToolStripItem).Namespace;
private ToolStripDesignerUtils() {
}
#region NewItemTypeLists
// This section controls the ordering of standard item types in all the various pieces
// of toolstrip designer UI.
// ToolStrip - Default item is determined by being first in the list
private static readonly Type[] NewItemTypesForToolStrip = new Type[]{typeof(ToolStripButton),
typeof(ToolStripLabel),
typeof(ToolStripSplitButton),
typeof(ToolStripDropDownButton),
typeof(ToolStripSeparator),
typeof(ToolStripComboBox),
typeof(ToolStripTextBox),
typeof(ToolStripProgressBar)};
// StatusStrip - Default item is determined by being first in the list
private static readonly Type[] NewItemTypesForStatusStrip = new Type[]{typeof(ToolStripStatusLabel),
typeof(ToolStripProgressBar),
typeof(ToolStripDropDownButton),
typeof(ToolStripSplitButton)};
// MenuStrip - Default item is determined by being first in the list
private static readonly Type[] NewItemTypesForMenuStrip = new Type[]{typeof(ToolStripMenuItem),
typeof(ToolStripComboBox),
typeof(ToolStripTextBox)};
// ToolStripDropDown - roughly same as menu strip.
private static readonly Type[] NewItemTypesForToolStripDropDownMenu = new Type[]{typeof(ToolStripMenuItem),
typeof(ToolStripComboBox),
typeof(ToolStripSeparator),
typeof(ToolStripTextBox)};
#endregion
// Get the Correct bounds for painting...
[SuppressMessage("Microsoft.Performance", "CA1800:DoNotCastUnnecessarily")]
public static void GetAdjustedBounds(ToolStripItem item, ref Rectangle r)
{
// adjust bounds as per item
if (!(item is ToolStripControlHost && item.IsOnDropDown))
{
//Deflate the SelectionGlyph for the MenuItems...
if (item is ToolStripMenuItem && item.IsOnDropDown)
{
r.Inflate(-3, -2);
r.Width++;
}
else if (item is ToolStripControlHost && !item.IsOnDropDown)
{
r.Inflate(0, -2);
}
else if (item is ToolStripMenuItem && !item.IsOnDropDown)
{
r.Inflate(-3, -3);
}
else
{
r.Inflate(-1, -1);
}
}
}
///
/// If IComponent is ToolStrip return ToolStrip
/// If IComponent is ToolStripItem return the Owner ToolStrip
/// If IComponent is ToolStripDropDownItem return the child DropDown ToolStrip
///
private static ToolStrip GetToolStripFromComponent(IComponent component) {
ToolStripItem stripItem = component as ToolStripItem;
ToolStrip parent = null;
if (stripItem != null) {
if (!(stripItem is ToolStripDropDownItem)){
parent = stripItem.Owner;
}
else {
parent = ((ToolStripDropDownItem)stripItem).DropDown;
}
}
else {
parent = component as ToolStrip;
}
return parent;
}
private static ToolboxItem GetCachedToolboxItem(Type itemType) {
ToolboxItem tbxItem = null;
if (CachedToolboxItems == null){
CachedToolboxItems = new Dictionary();
}
else if (CachedToolboxItems.ContainsKey(itemType)){
tbxItem = CachedToolboxItems[itemType];
return tbxItem;
}
// no cache hit - load the item.
if (tbxItem == null) {
tbxItem = ToolboxService.GetToolboxItem(itemType);
if (tbxItem == null) {
// create a toolbox item to match
tbxItem = new ToolboxItem(itemType);
}
}
CachedToolboxItems[itemType] = tbxItem;
if (CustomToolStripItemCount > 0 && (CustomToolStripItemCount*2 < CachedToolboxItems.Count)) {
// time to clear the toolbox item cache - we've got twice the number of toolbox items than
// actual custom item types.
CachedToolboxItems.Clear();
}
return tbxItem;
}
// only call this for well known items.
private static Bitmap GetKnownToolboxBitmap(Type itemType) {
if (CachedWinformsImages == null) {
CachedWinformsImages = new Dictionary();
}
if (!CachedWinformsImages.ContainsKey(itemType)) {
Bitmap knownImage = ToolboxBitmapAttribute.GetImageFromResource(itemType, null, false) as Bitmap;
CachedWinformsImages[itemType] = knownImage;
return knownImage;
}
return CachedWinformsImages[itemType];
}
public static Bitmap GetToolboxBitmap(Type itemType) {
// if and only if the namespace of the type is System.Windows.Forms.
// try to pull the image out of the manifest.
if (itemType.Namespace == systemWindowsFormsNamespace) {
return GetKnownToolboxBitmap(itemType);
}
// check to see if we've got a toolbox item, and use it.
ToolboxItem tbxItem = GetCachedToolboxItem(itemType);
if (tbxItem != null) {
return tbxItem.Bitmap;
}
// if all else fails, throw up a default image.
return GetKnownToolboxBitmap(typeof(Component));
}
///
/// Fishes out the display name attribute from the Toolbox item
/// if not present, uses Type.Name
///
public static string GetToolboxDescription(Type itemType) {
String currentName = null;
ToolboxItem tbxItem = GetCachedToolboxItem(itemType);
if (tbxItem != null) {
currentName = tbxItem.DisplayName;
}
if (currentName == null)
{
currentName = itemType.Name;
}
if (currentName.StartsWith("ToolStrip"))
{
return currentName.Substring(TOOLSTRIPCHARCOUNT);
}
return currentName;
}
///
/// GetStandardItemTypes
/// The first item returned should be the DefaultItem to create on the ToolStrip
///
public static Type[] GetStandardItemTypes(IComponent component) {
Type[] supportedTypes = new Type[0];
ToolStrip toolStrip = GetToolStripFromComponent(component);
if (toolStrip is MenuStrip) {
return NewItemTypesForMenuStrip;
}
else if (toolStrip is ToolStripDropDownMenu) {
// ToolStripDropDown gets default items.
return NewItemTypesForToolStripDropDownMenu;
}
else if (toolStrip is StatusStrip) {
return NewItemTypesForStatusStrip;
}
Debug.Assert(toolStrip != null, "why werent we handed a toolstrip here? returning default list");
return NewItemTypesForToolStrip;
}
private static ToolStripItemDesignerAvailability GetDesignerVisibility(ToolStrip toolStrip) {
ToolStripItemDesignerAvailability visiblity = ToolStripItemDesignerAvailability.None;
if (toolStrip is StatusStrip) {
visiblity = ToolStripItemDesignerAvailability.StatusStrip;
}
else if (toolStrip is MenuStrip) {
visiblity = ToolStripItemDesignerAvailability.MenuStrip;
}
else if (toolStrip is ToolStripDropDownMenu) {
visiblity = ToolStripItemDesignerAvailability.ContextMenuStrip;
}
else {
visiblity = ToolStripItemDesignerAvailability.ToolStrip;
}
return visiblity;
}
public static Type[] GetCustomItemTypes(IComponent component, IServiceProvider serviceProvider) {
ITypeDiscoveryService discoveryService = null;
if (serviceProvider != null) {
discoveryService = serviceProvider.GetService(typeof(ITypeDiscoveryService)) as ITypeDiscoveryService;
}
return GetCustomItemTypes(component, discoveryService);
}
public static Type[] GetCustomItemTypes(IComponent component, ITypeDiscoveryService discoveryService) {
if (discoveryService != null) {
// fish out all types which derive from toolstrip item
ICollection itemTypes = discoveryService.GetTypes(toolStripItemType, false /*excludeGlobalTypes*/);
ToolStrip toolStrip = GetToolStripFromComponent(component);
// determine the value of the visibility attribute which matches the current toolstrip type.
ToolStripItemDesignerAvailability currentToolStripVisibility = GetDesignerVisibility(toolStrip);
Debug.Assert(currentToolStripVisibility != ToolStripItemDesignerAvailability.None, "Why is GetDesignerVisibility returning None?");
// fish out the ones we've already listed.
Type[] stockItemTypeList = GetStandardItemTypes(component);
if (currentToolStripVisibility != ToolStripItemDesignerAvailability.None) {
ArrayList createableTypes = new ArrayList(itemTypes.Count);
foreach (Type t in itemTypes) {
if (t.IsAbstract){
continue;
}
if (!t.IsPublic && !t.IsNestedPublic){
continue;
}
if (t.ContainsGenericParameters) {
continue;
}
// Check if we have public constructor...
ConstructorInfo ctor = t.GetConstructor(new Type[0]);
if (ctor == null)
{
continue;
}
// if the visibility matches the current toolstrip type,
// add it to the list of possible types to create.
ToolStripItemDesignerAvailabilityAttribute visiblityAttribute = (ToolStripItemDesignerAvailabilityAttribute)TypeDescriptor.GetAttributes(t)[typeof(ToolStripItemDesignerAvailabilityAttribute)];
if (visiblityAttribute != null && ((visiblityAttribute.ItemAdditionVisibility & currentToolStripVisibility) == currentToolStripVisibility)) {
bool isStockType = false;
// PERF: consider a dictionary - but this list will usually be 3-7 items.
foreach (Type stockType in stockItemTypeList) {
if (stockType == t) {
isStockType = true;
break;
}
}
if (!isStockType) {
createableTypes.Add(t);
}
}
}
if (createableTypes.Count > 0) {
Type[] createableTypesArray = new Type[createableTypes.Count];
createableTypes.CopyTo(createableTypesArray,0);
CustomToolStripItemCount = createableTypes.Count;
return createableTypesArray;
}
}
}
CustomToolStripItemCount = 0;
return new Type[0];
}
///
/// GetStandardItemMenuItems
/// wraps the result of GetStandardItemTypes in ItemTypeToolStripMenuItems.
///
public static ToolStripItem[] GetStandardItemMenuItems(IComponent component, EventHandler onClick, bool convertTo) {
Type[] standardTypes = GetStandardItemTypes(component);
ToolStripItem[] items = new ToolStripItem[standardTypes.Length];
for ( int i = 0; i
/// GetCustomItemMenuItems
/// wraps the result of GetCustomItemTypes in ItemTypeToolStripMenuItems.
///
public static ToolStripItem[] GetCustomItemMenuItems(IComponent component, EventHandler onClick, bool convertTo, IServiceProvider serviceProvider) {
Type[] customTypes = GetCustomItemTypes(component, serviceProvider);
ToolStripItem[] items = new ToolStripItem[customTypes.Length];
for ( int i = 0; i
/// GetNewItemDropDown
/// build up a list of standard items separated by the custom items
///
public static ToolStripDropDown GetNewItemDropDown(IComponent component, ToolStripItem currentItem, EventHandler onClick, bool convertTo, IServiceProvider serviceProvider) {
NewItemsContextMenuStrip contextMenu = new NewItemsContextMenuStrip(component, currentItem, onClick, convertTo, serviceProvider);
contextMenu.GroupOrdering.Add("StandardList");
contextMenu.GroupOrdering.Add("CustomList");
// plumb through the standard and custom items.
foreach (ToolStripItem item in GetStandardItemMenuItems(component, onClick, convertTo)) {
contextMenu.Groups["StandardList"].Items.Add(item);
if (convertTo)
{
ItemTypeToolStripMenuItem toolItem = item as ItemTypeToolStripMenuItem;
if (toolItem != null && currentItem != null && toolItem.ItemType == currentItem.GetType())
{
toolItem.Enabled = false;
}
}
}
foreach (ToolStripItem item in GetCustomItemMenuItems(component, onClick, convertTo, serviceProvider)) {
contextMenu.Groups["CustomList"].Items.Add(item);
if (convertTo)
{
ItemTypeToolStripMenuItem toolItem = item as ItemTypeToolStripMenuItem;
if (toolItem != null && currentItem != null && toolItem.ItemType == currentItem.GetType())
{
toolItem.Enabled = false;
}
}
}
IUIService uis = serviceProvider.GetService(typeof(IUIService)) as IUIService;
if (uis != null) {
contextMenu.Renderer =(ToolStripProfessionalRenderer)uis.Styles["VsRenderer"];
contextMenu.Font = (Font)uis.Styles["DialogFont"];
}
contextMenu.Populate();
return contextMenu;
}
public static void InvalidateSelection(ArrayList originalSelComps, ToolStripItem nextSelection, IServiceProvider provider, bool shiftPressed)
{
// if we are not selecting a ToolStripItem then return (dont invalidate).
if (nextSelection == null || provider == null)
{
return;
}
//InvalidateOriginal SelectedComponents.
Region invalidateRegion = null;
Region itemRegion = null;
int GLYPHBORDER = 1;
int GLYPHINSET = 2;
ToolStripItemDesigner designer = null;
bool templateNodeSelected = false;
try
{
Rectangle invalidateBounds = Rectangle.Empty;
IDesignerHost designerHost = (IDesignerHost)provider.GetService(typeof(IDesignerHost));
if (designerHost != null)
{
foreach(Component comp in originalSelComps)
{
ToolStripItem selItem = comp as ToolStripItem;
if (selItem != null)
{
if ((originalSelComps.Count > 1) ||
(originalSelComps.Count == 1 && selItem.GetCurrentParent() != nextSelection.GetCurrentParent()) ||
selItem is ToolStripSeparator || selItem is ToolStripControlHost || !selItem.IsOnDropDown || selItem.IsOnOverflow)
{
// finally Invalidate the selection rect ...
designer = designerHost.GetDesigner(selItem) as ToolStripItemDesigner;
if (designer != null)
{
invalidateBounds = designer.GetGlyphBounds();
GetAdjustedBounds(selItem, ref invalidateBounds);
invalidateBounds.Inflate(GLYPHBORDER, GLYPHBORDER);
if (invalidateRegion == null)
{
invalidateRegion = new Region(invalidateBounds);
invalidateBounds.Inflate(-GLYPHINSET, -GLYPHINSET);
invalidateRegion.Exclude(invalidateBounds);
}
else
{
itemRegion = new Region(invalidateBounds);
invalidateBounds.Inflate(-GLYPHINSET, -GLYPHINSET);
itemRegion.Exclude(invalidateBounds);
invalidateRegion.Union(itemRegion);
}
}
else if (selItem is DesignerToolStripControlHost)
{
templateNodeSelected = true;
}
}
}
}
}
if (invalidateRegion != null || templateNodeSelected || shiftPressed)
{
BehaviorService behaviorService = (BehaviorService)provider.GetService(typeof(BehaviorService));
if (behaviorService != null)
{
if (invalidateRegion != null)
{
behaviorService.Invalidate(invalidateRegion);
}
// When a ToolStripItem is PrimarySelection, the glyph bounds are not invalidated
// through the SelectionManager so we have to do this.
designer = designerHost.GetDesigner(nextSelection) as ToolStripItemDesigner;
if (designer != null)
{
invalidateBounds = designer.GetGlyphBounds();
GetAdjustedBounds(nextSelection, ref invalidateBounds);
invalidateBounds.Inflate(GLYPHBORDER, GLYPHBORDER);
invalidateRegion = new Region(invalidateBounds);
invalidateBounds.Inflate(-GLYPHINSET, -GLYPHINSET);
invalidateRegion.Exclude(invalidateBounds);
behaviorService.Invalidate(invalidateRegion);
}
}
}
}
finally
{
if (invalidateRegion != null)
{
invalidateRegion.Dispose();
}
if (itemRegion != null)
{
itemRegion.Dispose();
}
}
}
/// represents cached information about the display
internal static class DisplayInformation {
private static bool highContrast; //whether we are under hight contrast mode
private static bool lowRes; //whether we are under low resolution mode
private static bool isTerminalServerSession; //whether this application is run on a terminal server (remote desktop)
private static bool highContrastSettingValid; //indicates whether the high contrast setting is correct
private static bool lowResSettingValid; //indicates whether the low resolution setting is correct
private static bool terminalSettingValid; //indicates whether the terminal server setting is correct
private static short bitsPerPixel = 0;
private static bool dropShadowSettingValid;
private static bool dropShadowEnabled;
static DisplayInformation() {
SystemEvents.UserPreferenceChanged += new UserPreferenceChangedEventHandler(UserPreferenceChanged);
SystemEvents.DisplaySettingsChanged += new EventHandler(DisplaySettingChanged);
}
public static short BitsPerPixel {
get {
if (bitsPerPixel == 0) {
new EnvironmentPermission(PermissionState.Unrestricted).Assert();
try {
foreach (Screen s in Screen.AllScreens) {
if (bitsPerPixel == 0) {
bitsPerPixel = (short)s.BitsPerPixel;
}
else {
bitsPerPixel = (short)Math.Min(s.BitsPerPixel, bitsPerPixel);
}
}
}
finally {
CodeAccessPermission.RevertAssert();
}
}
return bitsPerPixel;
}
}
///
///tests to see if the monitor is in low resolution mode (8-bit color depth or less).
///
public static bool LowResolution {
get {
if (lowResSettingValid) {
return lowRes;
}
lowRes = BitsPerPixel <= 8;
lowResSettingValid = true;
return lowRes;
}
}
///
///tests to see if we are under high contrast mode
///
public static bool HighContrast {
get {
if (highContrastSettingValid) {
return highContrast;
}
highContrast = SystemInformation.HighContrast;
highContrastSettingValid = true;
return highContrast;
}
}
public static bool IsDropShadowEnabled {
[SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
get {
if (dropShadowSettingValid) {
return dropShadowEnabled;
}
dropShadowEnabled = SystemInformation.IsDropShadowEnabled;
dropShadowSettingValid = true;
return dropShadowEnabled;
}
}
///
///test to see if we are under terminal server mode
///
public static bool TerminalServer {
get {
if (terminalSettingValid) {
return isTerminalServerSession;
}
isTerminalServerSession = SystemInformation.TerminalServerSession;
terminalSettingValid = true;
return isTerminalServerSession;
}
}
///
///event handler for change in display setting
///
private static void DisplaySettingChanged(object obj, EventArgs ea)
{
highContrastSettingValid = false;
lowResSettingValid = false;
terminalSettingValid = false;
dropShadowSettingValid = false;
}
///
///event handler for change in user preference
///
private static void UserPreferenceChanged(object obj, UserPreferenceChangedEventArgs ea) {
highContrastSettingValid = false;
lowResSettingValid = false;
terminalSettingValid = false;
dropShadowSettingValid = false;
bitsPerPixel = 0;
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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