Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Integration / System / Windows / Integration / ElementHostPropertyMap.cs / 1 / ElementHostPropertyMap.cs
using System.Windows.Forms.Integration; using System.Runtime.Serialization; using SWC = System.Windows.Controls; using SD = System.Drawing; using SW = System.Windows; using SWM = System.Windows.Media; using SWF = System.Windows.Forms; using SWI = System.Windows.Input; namespace System.Windows.Forms.Integration { internal sealed class ElementHostPropertyMap : PropertyMap { //Since the host controls our lifetime, we shouldn't be disposing it. #pragma warning disable 1634, 1691 #pragma warning disable 56524 private ElementHost _host; #pragma warning restore 1634, 1691, 56524 public ElementHostPropertyMap(ElementHost host) : base(host) { _host = host; InitializeDefaultTranslators(); ResetAll(); } ////// Initialize the list of things we translate by default, like /// BackColor. /// private void InitializeDefaultTranslators() { DefaultTranslators.Add("BackColor", BackgroundPropertyTranslator); DefaultTranslators.Add("BackgroundImage", BackgroundPropertyTranslator); DefaultTranslators.Add("BackgroundImageLayout", BackgroundPropertyTranslator); DefaultTranslators.Add("Cursor", CursorPropertyTranslator); DefaultTranslators.Add("Enabled", EnabledPropertyTranslator); DefaultTranslators.Add("Font", FontPropertyTranslator); DefaultTranslators.Add("RightToLeft", RightToLeftPropertyTranslator); DefaultTranslators.Add("Visible", VisiblePropertyTranslator); } ////// Translator for BackColor, BackgroundImage, and BackgroundImageLayout /// private static void BackgroundPropertyTranslator(object host, string propertyName, object value) { ElementHost elementHost = host as ElementHost; if (elementHost != null) { UpdateBackgroundImage(elementHost); } } private static void UpdateBackgroundImage(ElementHost host) { if (host.BackColorTransparent) { Control parent = host.Parent; if (parent != null && parent.Visible) { using (SD.Bitmap parentBitmap = HostUtils.GetCoveredPortionOfBitmap(parent, host)) { host.HostContainerInternal.Background = new SWM.ImageBrush(Convert.ToSystemWindowsMediaImagingBitmapImage(parentBitmap)); } } } else { using (SD.Bitmap elementHostBitmap = HostUtils.GetBitmapOfControl(host, host)) { host.HostContainerInternal.Background = new SWM.ImageBrush(Convert.ToSystemWindowsMediaImagingBitmapImage(elementHostBitmap)); } } } ////// Translator for Cursor /// private static void CursorPropertyTranslator(object host, string propertyName, object value) { ElementHost elementHost = host as ElementHost; if (elementHost != null) { AvalonAdapter adapter = elementHost.HostContainerInternal; if (adapter != null) { //Note: Allow nulls to propagate SWF.Cursor fromCursor = value as SWF.Cursor; SWI.Cursor toCursor = Convert.ToSystemWindowsInputCursor(fromCursor); adapter.Cursor = toCursor; } } } ////// Translator for Enabled /// private static void EnabledPropertyTranslator(object host, string propertyName, object value) { ElementHost elementHost = host as ElementHost; if (elementHost != null) { AvalonAdapter adapter = elementHost.HostContainerInternal; if (adapter != null && value is bool) { adapter.IsEnabled = (bool)value; } } } ////// Translator for Font /// private static void FontPropertyTranslator(object host, string propertyName, object value) { ElementHost elementHost = host as ElementHost; SD.Font wfFont = value as SD.Font; if (elementHost != null && wfFont != null) { AvalonAdapter adapter = elementHost.HostContainerInternal; if (adapter != null) { adapter.SetValue(SWC.Control.FontSizeProperty, Convert.SystemDrawingFontToSystemWindowsFontSize(wfFont)); adapter.SetValue(SWC.Control.FontFamilyProperty, Convert.ToSystemWindowsFontFamily(wfFont.FontFamily)); adapter.SetValue(SWC.Control.FontWeightProperty, Convert.ToSystemWindowsFontWeight(wfFont)); adapter.SetValue(SWC.Control.FontStyleProperty, Convert.ToSystemWindowsFontStyle(wfFont)); SWC.TextBlock childTextBlock = elementHost.Child as SWC.TextBlock; if (childTextBlock != null) { TextDecorationCollection decorations = new TextDecorationCollection(); if (wfFont.Underline) { decorations.Add(TextDecorations.Underline); }; if (wfFont.Strikeout) { decorations.Add(TextDecorations.Strikethrough); } childTextBlock.TextDecorations = decorations; } } } } ////// Translator for RightToLeft /// private static void RightToLeftPropertyTranslator(object host, string propertyName, object value) { ElementHost elementHost = host as ElementHost; if (elementHost != null) { AvalonAdapter adapter = elementHost.HostContainerInternal; if (adapter != null && value is SWF.RightToLeft) { SWF.RightToLeft fromRTL = (SWF.RightToLeft)value; SW.FlowDirection toFlowDirection = ((fromRTL == SWF.RightToLeft.Yes) ? SW.FlowDirection.RightToLeft : SW.FlowDirection.LeftToRight); adapter.FlowDirection = toFlowDirection; } } } ////// Translator for Visible /// private static void VisiblePropertyTranslator(object host, string propertyName, object value) { ElementHost elementHost = host as ElementHost; if (elementHost != null) { AvalonAdapter adapter = elementHost.HostContainerInternal; if (value is bool && adapter != null) { bool fromVisible = (bool)value; SW.Visibility toVisibility = ((fromVisible) ? SW.Visibility.Visible : SW.Visibility.Hidden); adapter.Visibility = toVisibility; } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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