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comparison Chronosv2/source/Extensions/Windows/UIElementExtensions.cs @ 10:443821e55f06

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Initial cleaned up add from Codeplex files
author stevenh7776 stevenhollidge@hotmail.com
date Tue, 21 Feb 2012 17:25:44 +0700
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children 09d18d6e5f40
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9:904a9faadf8b 10:443821e55f06
1 /*
2 The MIT License
3
4 Copyright (c) 2009-2010. Carlos Guzmán Álvarez. http://chronoswpf.codeplex.com/
5
6 Permission is hereby granted, free of charge, to any person obtaining a copy
7 of this software and associated documentation files (the "Software"), to deal
8 in the Software without restriction, including without limitation the rights
9 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 copies of the Software, and to permit persons to whom the Software is
11 furnished to do so, subject to the following conditions:
12
13 The above copyright notice and this permission notice shall be included in
14 all copies or substantial portions of the Software.
15
16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 THE SOFTWARE.
23 */
24
25 using System.Windows;
26 using System.Windows.Media;
27 using System.Windows.Media.Imaging;
28
29 namespace Chronos.Extensions.Windows
30 {
31 /// <summary>
32 /// Extension methods for the System.Windows.UIElement class
33 /// </summary>
34 public static class UIElementExtensions
35 {
36 #region · Extensions ·
37
38 /// <summary>
39 /// Gets the parent of an <see cref="UIElement"/>.
40 /// </summary>
41 /// <typeparam name="T"></typeparam>
42 /// <param name="element">The element.</param>
43 /// <returns></returns>
44 public static T GetParent<T>(this UIElement element) where T : UIElement
45 {
46 // Walk the VisualTree to obtain the DesktopItem of the DragThumb
47 DependencyObject parent = VisualTreeHelper.GetParent(element);
48
49 while (parent != null && !(parent is T))
50 {
51 parent = VisualTreeHelper.GetParent(parent);
52 }
53
54 return parent as T;
55 }
56
57 /// <summary>
58 /// Renders the ui element into a bitmap frame.
59 /// </summary>
60 /// <param name="element">The UI element.</param>
61 /// <returns>The created bitmap frame</returns>
62 public static BitmapSource RenderToBitmap(this UIElement element)
63 {
64 return element.RenderToBitmap(1);
65 }
66
67 /// <summary>
68 /// Renders the ui element into a bitmap frame using the specified scale.
69 /// </summary>
70 /// <param name="element">The UI element.</param>
71 /// <param name="scale">The scale (default: 1).</param>
72 /// <returns>The created bitmap frame</returns>
73 public static BitmapSource RenderToBitmap(this UIElement element, double scale)
74 {
75 var renderWidth = (int)(element.RenderSize.Width * scale);
76 var renderHeight = (int)(element.RenderSize.Height * scale);
77
78 var renderTarget = new RenderTargetBitmap(renderWidth, renderHeight, 96, 96, PixelFormats.Pbgra32);
79 var sourceBrush = new VisualBrush(element);
80
81 var drawingVisual = new DrawingVisual();
82 var drawingContext = drawingVisual.RenderOpen();
83
84 using (drawingContext)
85 {
86 drawingContext.PushTransform(new ScaleTransform(scale, scale));
87 drawingContext.DrawRectangle(sourceBrush, null, new Rect(new Point(0, 0), new Point(element.RenderSize.Width, element.RenderSize.Height)));
88 }
89
90 renderTarget.Render(drawingVisual);
91
92 return renderTarget;
93 }
94
95 #endregion
96 }
97 }