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comparison dwt/dnd/TableDragSourceEffect.d @ 213:36f5cb12e1a2

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Update to SWT 3.4M7
author Frank Benoit <benoit@tionex.de>
date Sat, 17 May 2008 17:34:28 +0200
parents 3afcd4ddcf90
children fd9c62a2998e
comparison
equal deleted inserted replaced
212:ab60f3309436 213:36f5cb12e1a2
12 *******************************************************************************/ 12 *******************************************************************************/
13 module dwt.dnd.TableDragSourceEffect; 13 module dwt.dnd.TableDragSourceEffect;
14 14
15 import dwt.DWT; 15 import dwt.DWT;
16 import dwt.graphics.Image; 16 import dwt.graphics.Image;
17 import dwt.graphics.ImageData;
18 import dwt.graphics.PaletteData;
17 import dwt.graphics.Rectangle; 19 import dwt.graphics.Rectangle;
18 import dwt.internal.win32.OS; 20 import dwt.internal.win32.OS;
19 import dwt.widgets.Display; 21 import dwt.widgets.Display;
20 import dwt.widgets.Table; 22 import dwt.widgets.Table;
21 import dwt.widgets.TableItem; 23 import dwt.widgets.TableItem;
85 } 87 }
86 88
87 Image getDragSourceImage(DragSourceEvent event) { 89 Image getDragSourceImage(DragSourceEvent event) {
88 if (dragSourceImage !is null) dragSourceImage.dispose(); 90 if (dragSourceImage !is null) dragSourceImage.dispose();
89 dragSourceImage = null; 91 dragSourceImage = null;
92 if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (5, 1)) {
93 SHDRAGIMAGE shdi;
94 int DI_GETDRAGIMAGE = OS.RegisterWindowMessage ( "ShellGetDragImage"w.ptr ); //$NON-NLS-1$
95 if (OS.SendMessage (control.handle, DI_GETDRAGIMAGE, 0, &shdi) !is 0) {
96 event.x += shdi.ptOffset.x;
97 event.y += shdi.ptOffset.y;
98 auto hImage = shdi.hbmpDragImage;
99 if (hImage !is null) {
100 BITMAP bm;
101 OS.GetObject (hImage, BITMAP.sizeof, &bm);
102 int srcWidth = bm.bmWidth;
103 int srcHeight = bm.bmHeight;
104
105 /* Create resources */
106 auto hdc = OS.GetDC (null);
107 auto srcHdc = OS.CreateCompatibleDC (hdc);
108 auto oldSrcBitmap = OS.SelectObject (srcHdc, hImage);
109 auto memHdc = OS.CreateCompatibleDC (hdc);
110 BITMAPINFOHEADER bmiHeader;
111 bmiHeader.biSize = BITMAPINFOHEADER.sizeof;
112 bmiHeader.biWidth = srcWidth;
113 bmiHeader.biHeight = -srcHeight;
114 bmiHeader.biPlanes = 1;
115 bmiHeader.biBitCount = 32;
116 bmiHeader.biCompression = OS.BI_RGB;
117 void* pBits;
118 auto memDib = OS.CreateDIBSection (null, cast(BITMAPINFO*)&bmiHeader, OS.DIB_RGB_COLORS, &pBits, null, 0);
119 if (memDib is null) DWT.error (DWT.ERROR_NO_HANDLES);
120 auto oldMemBitmap = OS.SelectObject (memHdc, memDib);
121
122 BITMAP dibBM;
123 OS.GetObject (memDib, BITMAP.sizeof, &dibBM);
124 int sizeInBytes = dibBM.bmWidthBytes * dibBM.bmHeight;
125
126 /* Get the foreground pixels */
127 OS.BitBlt (memHdc, 0, 0, srcWidth, srcHeight, srcHdc, 0, 0, OS.SRCCOPY);
128 //byte[] srcData = new byte [sizeInBytes];
129 //OS.MoveMemory (srcData, dibBM.bmBits, sizeInBytes);
130 byte[] srcData = (cast(byte*) dibBM.bmBits)[ 0 .. BITMAPINFOHEADER.sizeof ];
131
132 byte[] alphaData = new byte[srcWidth * srcHeight];
133 int spinc = dibBM.bmWidthBytes - srcWidth * 4;
134 int ap = 0, sp = 3;
135 for (int y = 0; y < srcHeight; ++y) {
136 for (int x = 0; x < srcWidth; ++x) {
137 alphaData [ap++] = srcData [sp];
138 sp += 4;
139 }
140 sp += spinc;
141 }
142 PaletteData palette = new PaletteData(0xFF00, 0xFF0000, 0xFF000000);
143 ImageData data = new ImageData(srcWidth, srcHeight, bm.bmBitsPixel, palette, bm.bmWidthBytes, srcData);
144 data.alphaData = alphaData;
145 data.transparentPixel = shdi.crColorKey;
146 dragSourceImage = new Image(control.getDisplay(), data);
147 OS.SelectObject (memHdc, oldMemBitmap);
148 OS.DeleteDC (memHdc);
149 OS.DeleteObject (memDib);
150 OS.SelectObject (srcHdc, oldSrcBitmap);
151 OS.DeleteDC (srcHdc);
152 OS.ReleaseDC (null, hdc);
153 return dragSourceImage;
154 }
155 }
156 return null;
157 }
90 Table table = cast(Table) control; 158 Table table = cast(Table) control;
159 //TEMPORARY CODE
160 if (table.isListening (DWT.EraseItem) || table.isListening (DWT.PaintItem)) return null;
91 TableItem[] selection = table.getSelection(); 161 TableItem[] selection = table.getSelection();
92 if (selection.length is 0) return null; 162 if (selection.length is 0) return null;
93 int tableImageList = OS.SendMessage (table.handle, OS.LVM_GETIMAGELIST, OS.LVSIL_SMALL, 0); 163 int /*long*/ tableImageList = OS.SendMessage (table.handle, OS.LVM_GETIMAGELIST, OS.LVSIL_SMALL, 0);
94 if (tableImageList !is 0) { 164 if (tableImageList !is 0) {
95 int count = Math.min(selection.length, 10); 165 int count = Math.min(selection.length, 10);
96 Rectangle bounds = selection[0].getBounds(0); 166 Rectangle bounds = selection[0].getBounds(0);
97 for (int i = 1; i < count; i++) { 167 for (int i = 1; i < count; i++) {
98 bounds = bounds.makeUnion(selection[i].getBounds(0)); 168 bounds = bounds.makeUnion(selection[i].getBounds(0));