Mercurial > projects > dwt-win

annotate dwt/dnd/TreeDragSourceEffect.d @ 213:36f5cb12e1a2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Update to SWT 3.4M7
author Frank Benoit <benoit@tionex.de>
date Sat, 17 May 2008 17:34:28 +0200
parents 3afcd4ddcf90
children fd9c62a2998e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
135
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
1 /*******************************************************************************
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
2 * Copyright (c) 2007 IBM Corporation and others.
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
3 * All rights reserved. This program and the accompanying materials
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
4 * are made available under the terms of the Eclipse Public License v1.0
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
5 * which accompanies this distribution, and is available at
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
6 * http://www.eclipse.org/legal/epl-v10.html
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
7 *
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
8 * Contributors:
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
9 * IBM Corporation - initial API and implementation
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
10 * Port to the D programming language:
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
11 * Frank Benoit <benoit@tionex.de>
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
12 *******************************************************************************/
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
13 module dwt.dnd.TreeDragSourceEffect;
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
14
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
15 import dwt.DWT;
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
16 import dwt.graphics.Image;
213
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
17 import dwt.graphics.ImageData;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
18 import dwt.graphics.PaletteData;
135
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
19 import dwt.graphics.Rectangle;
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
20 import dwt.internal.win32.OS;
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
21 import dwt.widgets.Display;
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
22 import dwt.widgets.Tree;
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
23 import dwt.widgets.TreeItem;
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
24
136
04e357b8343d DragSource
Frank Benoit <benoit@tionex.de>
parents: 135
diff changeset
25 import dwt.dnd.DragSourceEffect;
04e357b8343d DragSource
Frank Benoit <benoit@tionex.de>
parents: 135
diff changeset
26 import dwt.dnd.DragSourceEvent;
04e357b8343d DragSource
Frank Benoit <benoit@tionex.de>
parents: 135
diff changeset
27
143
45172b7a0ee6 TreeDragSourceEffect
Frank Benoit <benoit@tionex.de>
parents: 136
diff changeset
28 import dwt.dwthelper.utils;
45172b7a0ee6 TreeDragSourceEffect
Frank Benoit <benoit@tionex.de>
parents: 136
diff changeset
29
135
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
30 /**
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
31 * This class provides default implementations to display a source image
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
32 * when a drag is initiated from a <code>Tree</code>.
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
33 *
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
34 * <p>Classes that wish to provide their own source image for a <code>Tree</code> can
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
35 * extend <code>TreeDragSourceEffect</code> class and override the <code>TreeDragSourceEffect.dragStart</code>
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
36 * method and set the field <code>DragSourceEvent.image</code> with their own image.</p>
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
37 *
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
38 * Subclasses that override any methods of this class must call the corresponding
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
39 * <code>super</code> method to get the default drag under effect implementation.
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
40 *
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
41 * @see DragSourceEffect
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
42 * @see DragSourceEvent
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
43 *
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
44 * @since 3.3
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
45 */
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
46 public class TreeDragSourceEffect : DragSourceEffect {
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
47 Image dragSourceImage = null;
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
48
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
49 /**
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
50 * Creates a new <code>TreeDragSourceEffect</code> to handle drag effect
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
51 * from the specified <code>Tree</code>.
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
52 *
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
53 * @param tree the <code>Tree</code> that the user clicks on to initiate the drag
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
54 */
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
55 public this(Tree tree) {
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
56 super(tree);
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
57 }
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
58
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
59 /**
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
60 * This implementation of <code>dragFinished</code> disposes the image
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
61 * that was created in <code>TreeDragSourceEffect.dragStart</code>.
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
62 *
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
63 * Subclasses that override this method should call <code>super.dragFinished(event)</code>
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
64 * to dispose the image in the default implementation.
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
65 *
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
66 * @param event the information associated with the drag finished event
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
67 */
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
68 public void dragFinished(DragSourceEvent event) {
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
69 if (dragSourceImage !is null) dragSourceImage.dispose();
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
70 dragSourceImage = null;
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
71 }
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
72
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
73 /**
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
74 * This implementation of <code>dragStart</code> will create a default
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
75 * image that will be used during the drag. The image should be disposed
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
76 * when the drag is completed in the <code>TreeDragSourceEffect.dragFinished</code>
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
77 * method.
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
78 *
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
79 * Subclasses that override this method should call <code>super.dragStart(event)</code>
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
80 * to use the image from the default implementation.
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
81 *
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
82 * @param event the information associated with the drag start event
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
83 */
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
84 public void dragStart(DragSourceEvent event) {
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
85 event.image = getDragSourceImage(event);
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
86 }
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
87
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
88 Image getDragSourceImage(DragSourceEvent event) {
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
89 if (dragSourceImage !is null) dragSourceImage.dispose();
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
90 dragSourceImage = null;
213
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
91 if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (5, 1)) {
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
92 SHDRAGIMAGE shdi;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
93 int DI_GETDRAGIMAGE = OS.RegisterWindowMessage ("ShellGetDragImage"w.ptr); //$NON-NLS-1$
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
94 if (OS.SendMessage (control.handle, DI_GETDRAGIMAGE, 0, &shdi) !is 0) {
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
95 event.x += shdi.ptOffset.x;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
96 event.y += shdi.ptOffset.y;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
97 auto hImage = shdi.hbmpDragImage;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
98 if (hImage !is null) {
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
99 BITMAP bm;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
100 OS.GetObject (hImage, BITMAP.sizeof, &bm);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
101 int srcWidth = bm.bmWidth;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
102 int srcHeight = bm.bmHeight;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
103
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
104 /* Create resources */
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
105 auto hdc = OS.GetDC (null);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
106 auto srcHdc = OS.CreateCompatibleDC (hdc);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
107 auto oldSrcBitmap = OS.SelectObject (srcHdc, hImage);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
108 auto memHdc = OS.CreateCompatibleDC (hdc);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
109 BITMAPINFOHEADER bmiHeader;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
110 bmiHeader.biSize = BITMAPINFOHEADER.sizeof;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
111 bmiHeader.biWidth = srcWidth;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
112 bmiHeader.biHeight = -srcHeight;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
113 bmiHeader.biPlanes = 1;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
114 bmiHeader.biBitCount = 32;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
115 bmiHeader.biCompression = OS.BI_RGB;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
116 void* pBits;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
117 auto memDib = OS.CreateDIBSection (null, cast(BITMAPINFO*)&bmiHeader, OS.DIB_RGB_COLORS, &pBits, null, 0);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
118 if (memDib is null) DWT.error (DWT.ERROR_NO_HANDLES);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
119 auto oldMemBitmap = OS.SelectObject (memHdc, memDib);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
120
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
121 BITMAP dibBM;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
122 OS.GetObject (memDib, BITMAP.sizeof, &dibBM);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
123 int sizeInBytes = dibBM.bmWidthBytes * dibBM.bmHeight;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
124
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
125 /* Get the foreground pixels */
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
126 OS.BitBlt (memHdc, 0, 0, srcWidth, srcHeight, srcHdc, 0, 0, OS.SRCCOPY);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
127 byte[] srcData = (cast(byte*)dibBM.bmBits)[ 0 .. sizeInBytes ];
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
128
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
129 PaletteData palette = new PaletteData(0xFF00, 0xFF0000, 0xFF000000);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
130 ImageData data = new ImageData(srcWidth, srcHeight, bm.bmBitsPixel, palette, bm.bmWidthBytes, srcData);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
131 data.transparentPixel = shdi.crColorKey << 8;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
132 dragSourceImage = new Image (control.getDisplay (), data);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
133 OS.SelectObject (memHdc, oldMemBitmap);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
134 OS.DeleteDC (memHdc);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
135 OS.DeleteObject (memDib);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
136 OS.SelectObject (srcHdc, oldSrcBitmap);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
137 OS.DeleteDC (srcHdc);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
138 OS.ReleaseDC (null, hdc);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
139 return dragSourceImage;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
140 }
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
141 }
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
142 return null;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
143 }
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
144
136
04e357b8343d DragSource
Frank Benoit <benoit@tionex.de>
parents: 135
diff changeset
145 Tree tree = cast(Tree) control;
213
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
146 //TEMPORARY CODE
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
147 if (tree.isListening (DWT.EraseItem) || tree.isListening (DWT.PaintItem)) return null;
135
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
148 TreeItem[] selection = tree.getSelection();
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
149 if (selection.length is 0) return null;
213
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 194
diff changeset
150 auto treeImageList = OS.SendMessage (tree.handle, OS.TVM_GETIMAGELIST, OS.TVSIL_NORMAL, 0);
135
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
151 if (treeImageList !is 0) {
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
152 int count = Math.min(selection.length, 10);
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
153 Rectangle bounds = selection[0].getBounds(0);
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
154 for (int i = 1; i < count; i++) {
143
45172b7a0ee6 TreeDragSourceEffect
Frank Benoit <benoit@tionex.de>
parents: 136
diff changeset
155 bounds = bounds.makeUnion(selection[i].getBounds(0));
135
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
156 }
194
3afcd4ddcf90 Update to SWT 3.3.2
Frank Benoit <benoit@tionex.de>
parents: 143
diff changeset
157 auto hDC = OS.GetDC(tree.handle);
143
45172b7a0ee6 TreeDragSourceEffect
Frank Benoit <benoit@tionex.de>
parents: 136
diff changeset
158 auto hDC1 = OS.CreateCompatibleDC(hDC);
45172b7a0ee6 TreeDragSourceEffect
Frank Benoit <benoit@tionex.de>
parents: 136
diff changeset
159 auto bitmap = OS.CreateCompatibleBitmap(hDC, bounds.width, bounds.height);
45172b7a0ee6 TreeDragSourceEffect
Frank Benoit <benoit@tionex.de>
parents: 136
diff changeset
160 auto hOldBitmap = OS.SelectObject(hDC1, bitmap);
136
04e357b8343d DragSource
Frank Benoit <benoit@tionex.de>
parents: 135
diff changeset
161 RECT rect;
135
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
162 rect.right = bounds.width;
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
163 rect.bottom = bounds.height;
143
45172b7a0ee6 TreeDragSourceEffect
Frank Benoit <benoit@tionex.de>
parents: 136
diff changeset
164 auto hBrush = OS.GetStockObject(OS.WHITE_BRUSH);
136
04e357b8343d DragSource
Frank Benoit <benoit@tionex.de>
parents: 135
diff changeset
165 OS.FillRect(hDC1, &rect, hBrush);
135
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
166 for (int i = 0; i < count; i++) {
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
167 TreeItem selected = selection[i];
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
168 Rectangle cell = selected.getBounds(0);
143
45172b7a0ee6 TreeDragSourceEffect
Frank Benoit <benoit@tionex.de>
parents: 136
diff changeset
169 HANDLE imageList = cast(HANDLE) OS.SendMessage(tree.handle, OS.TVM_CREATEDRAGIMAGE, 0, selected.handle);
135
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
170 OS.ImageList_Draw(imageList, 0, hDC1, cell.x - bounds.x, cell.y - bounds.y, OS.ILD_SELECTED);
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
171 OS.ImageList_Destroy(imageList);
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
172 }
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
173 OS.SelectObject(hDC1, hOldBitmap);
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
174 OS.DeleteDC (hDC1);
194
3afcd4ddcf90 Update to SWT 3.3.2
Frank Benoit <benoit@tionex.de>
parents: 143
diff changeset
175 OS.ReleaseDC (tree.handle, hDC);
135
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
176 Display display = tree.getDisplay();
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
177 dragSourceImage = Image.win32_new(display, DWT.BITMAP, bitmap);
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
178 return dragSourceImage;
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
179 }
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
180 return null;
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
181 }
242e33c0e383 Added dnd source, ByteArrayTransfer,Clipboard completed
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
182 }