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annotate org.eclipse.ui.forms/src/org/eclipse/ui/internal/forms/widgets/ImageSegment.d @ 12:bc29606a740c

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Added dwt-addons in original directory structure of eclipse.org
author Frank Benoit <benoit@tionex.de>
date Sat, 14 Mar 2009 18:23:29 +0100
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children dbfb303e8fb0
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12
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2005 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.ui.internal.forms.widgets.ImageSegment;
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14
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15 import org.eclipse.ui.internal.forms.widgets.ObjectSegment;
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16 import org.eclipse.ui.internal.forms.widgets.SelectionData;
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17 import org.eclipse.ui.internal.forms.widgets.FormUtil;
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18
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19 import org.eclipse.swt.graphics.Color;
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20 import org.eclipse.swt.graphics.GC;
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21 import org.eclipse.swt.graphics.Image;
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22 import org.eclipse.swt.graphics.Point;
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23 import org.eclipse.swt.graphics.Rectangle;
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24
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25 import java.lang.all;
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26 import java.util.Set;
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27
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28 /**
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29 * @version 1.0
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30 * @author
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31 */
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32 public class ImageSegment : ObjectSegment {
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33 public static const String SEL_IMAGE_PREFIX = "isel."; //$NON-NLS-1$
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34
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35 public Image getImage(Hashtable objectTable) {
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36 return getImage(getObjectId(), objectTable);
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37 }
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38
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39 private Image getImage(String key, Hashtable objectTable) {
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40 if (key is null)
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41 return null;
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42 Object obj = objectTable.get(key);
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43 if (obj is null)
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44 return null;
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45 if ( auto image = cast(Image)obj )
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46 return image;
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47 return null;
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48 }
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49
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50 private Image getSelectedImage(Hashtable objectTable, SelectionData selData) {
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51 String key = SEL_IMAGE_PREFIX ~ getObjectId();
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52 Image image = getImage(key, objectTable);
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53 if (image is null) {
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54 image = FormUtil.createAlphaMashImage(selData.display, getImage(objectTable));
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55 if (image !is null)
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56 objectTable.put(key, image);
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57 }
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58 return image;
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59 }
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60 /*
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61 private String getSelectedImageId() {
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62 if (getObjectId() is null)
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63 return null;
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64 return SEL_IMAGE_PREFIX + getObjectId();
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65 }
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66 */
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67
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68 public void paint(GC gc, bool hover, Hashtable resourceTable, bool selected, SelectionData selData, Rectangle repaintRegion) {
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69 Image image = getImage(resourceTable);
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70 int iwidth = 0;
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71 int iheight = 0;
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72 if (image !is null) {
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73 Rectangle rect = image.getBounds();
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74 iwidth = rect.width + (isSelectable()?2:0);
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75 iheight = rect.height + (isSelectable()?2:0);
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76 } else
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77 return;
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78 Rectangle bounds = getBounds();
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79 int ix = bounds.x+(isSelectable()?1:0);
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80 int iy = bounds.y+(isSelectable()?1:0);
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81
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82 if (selData !is null) {
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83 int leftOffset = selData.getLeftOffset(bounds.height);
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84 int rightOffset = selData.getRightOffset(bounds.height);
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85 bool firstRow = selData.isFirstSelectionRow(bounds.y,
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86 bounds.height);
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87 bool lastRow = selData.isLastSelectionRow(bounds.y,
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88 bounds.height);
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89 bool selectedRow = selData
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90 .isSelectedRow(bounds.y, bounds.height);
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91 if (selectedRow) {
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92 if ((firstRow && leftOffset > ix) ||
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93 (lastRow && rightOffset < ix + iwidth/2)) {
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94 drawClipImage(gc, image, ix, iy, repaintRegion);
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95 }
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96 else {
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97 Color savedBg = gc.getBackground();
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98 gc.setBackground(selData.bg);
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99 int sx = ix;
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100 int sy = iy;
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101 if (repaintRegion !is null) {
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102 sx -= repaintRegion.x;
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103 sy -= repaintRegion.y;
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104 }
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105 gc.fillRectangle(sx, sy, iwidth, iheight);
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106 Image selImage = getSelectedImage(resourceTable, selData);
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107 gc.drawImage(selImage, sx, sy);
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108 gc.setBackground(savedBg);
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109 }
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110 }
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111 else
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112 drawClipImage(gc, image, ix, iy, repaintRegion);
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113 } else
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114 drawClipImage(gc, image, ix, iy, repaintRegion);
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115 if (selected) {
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116 int fx = bounds.x;
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117 int fy = bounds.y;
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118 if (repaintRegion !is null) {
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119 fx -= repaintRegion.x;
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120 fy -= repaintRegion.y;
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121 }
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122 Color fg = gc.getForeground();
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123 gc.setForeground(gc.getBackground());
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124 // Clean up to avoid canceling out XOR if it is already
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125 // selected.
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126 gc.drawRectangle(bounds.x, bounds.y, bounds.width - 1,
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127 bounds.height - 1);
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128 gc.setForeground(fg);
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129 gc.drawFocus(fx, fy, bounds.width, bounds.height);
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130 }
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131 }
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132 private void drawClipImage(GC gc, Image image, int ix, int iy, Rectangle repaintRegion) {
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133 if (repaintRegion !is null) {
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134 ix -= repaintRegion.x;
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135 iy -= repaintRegion.y;
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136 }
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137 gc.drawImage(image, ix, iy);
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138 }
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139
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140 protected Point getObjectSize(Hashtable resourceTable, int wHint) {
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141 Image image = getImage(resourceTable);
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142 if (image is null)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
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143 return new Point(0, 0);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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144 Rectangle ibounds = image.getBounds();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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145 return new Point(ibounds.width, ibounds.height);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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146 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
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147 }