Mercurial > projects > dwt2
annotate org.eclipse.ui.forms/src/org/eclipse/ui/internal/forms/widgets/FormUtil.d @ 12:bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 14 Mar 2009 18:23:29 +0100 |
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children | dbfb303e8fb0 |
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1 /******************************************************************************* |
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2 * Copyright (c) 2000, 2007 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 * Chriss Gross (schtoo@schtoo.com) - fix for 61670 |
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11 * Port to the D programming language: |
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12 * Frank Benoit <benoit@tionex.de> |
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13 *******************************************************************************/ |
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14 module org.eclipse.ui.internal.forms.widgets.FormUtil; |
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15 |
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16 |
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17 // import com.ibm.icu.text.BreakIterator; |
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18 |
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19 import org.eclipse.swt.SWT; |
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20 import org.eclipse.swt.custom.ScrolledComposite; |
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21 import org.eclipse.swt.events.MouseEvent; |
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22 import org.eclipse.swt.graphics.Device; |
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23 import org.eclipse.swt.graphics.FontMetrics; |
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24 import org.eclipse.swt.graphics.GC; |
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25 import org.eclipse.swt.graphics.Image; |
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26 import org.eclipse.swt.graphics.ImageData; |
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27 import org.eclipse.swt.graphics.Point; |
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28 import org.eclipse.swt.graphics.Rectangle; |
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29 import org.eclipse.swt.layout.GridData; |
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30 import org.eclipse.swt.widgets.Combo; |
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31 import org.eclipse.swt.widgets.Composite; |
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32 import org.eclipse.swt.widgets.Control; |
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33 import org.eclipse.swt.widgets.Label; |
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34 import org.eclipse.swt.widgets.Layout; |
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35 import org.eclipse.swt.widgets.ScrollBar; |
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36 import org.eclipse.swt.widgets.Text; |
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37 import org.eclipse.ui.forms.widgets.ColumnLayout; |
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38 import org.eclipse.ui.forms.widgets.Form; |
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39 import org.eclipse.ui.forms.widgets.FormText; |
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40 import org.eclipse.ui.forms.widgets.FormToolkit; |
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41 import org.eclipse.ui.forms.widgets.ILayoutExtension; |
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42 |
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43 import java.lang.all; |
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44 import java.util.Set; |
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45 |
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46 import org.eclipse.dwtxhelper.mangoicu.UBreakIterator; |
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47 |
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48 public class FormUtil { |
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49 |
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50 public static const String PLUGIN_ID = "org.eclipse.ui.forms"; //$NON-NLS-1$ |
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51 |
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52 static const int H_SCROLL_INCREMENT = 5; |
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53 |
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54 static const int V_SCROLL_INCREMENT = 64; |
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55 |
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56 public static const String DEBUG = PLUGIN_ID ~ "/debug"; //$NON-NLS-1$ |
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57 |
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58 public static const String DEBUG_TEXT = DEBUG ~ "/text"; //$NON-NLS-1$ |
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59 public static const String DEBUG_TEXTSIZE = DEBUG ~ "/textsize"; //$NON-NLS-1$ |
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60 |
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61 public static const String DEBUG_FOCUS = DEBUG ~ "/focus"; //$NON-NLS-1$ |
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62 |
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63 public static const String FOCUS_SCROLLING = "focusScrolling"; //$NON-NLS-1$ |
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64 |
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65 public static const String IGNORE_BODY = "__ignore_body__"; //$NON-NLS-1$ |
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66 |
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67 public static Text createText(Composite parent, String label, |
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68 FormToolkit factory) { |
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69 return createText(parent, label, factory, 1); |
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70 } |
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71 |
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72 public static Text createText(Composite parent, String label, |
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73 FormToolkit factory, int span) { |
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74 factory.createLabel(parent, label); |
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75 Text text = factory.createText(parent, ""); //$NON-NLS-1$ |
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76 int hfill = span is 1 ? GridData.FILL_HORIZONTAL |
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77 : GridData.HORIZONTAL_ALIGN_FILL; |
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78 GridData gd = new GridData(hfill | GridData.VERTICAL_ALIGN_CENTER); |
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79 gd.horizontalSpan = span; |
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80 text.setLayoutData(gd); |
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81 return text; |
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82 } |
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83 |
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84 public static Text createText(Composite parent, String label, |
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85 FormToolkit factory, int span, int style) { |
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86 Label l = factory.createLabel(parent, label); |
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87 if ((style & SWT.MULTI) !is 0) { |
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88 GridData gd = new GridData(GridData.VERTICAL_ALIGN_BEGINNING); |
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89 l.setLayoutData(gd); |
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90 } |
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91 Text text = factory.createText(parent, "", style); //$NON-NLS-1$ |
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92 int hfill = span is 1 ? GridData.FILL_HORIZONTAL |
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93 : GridData.HORIZONTAL_ALIGN_FILL; |
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94 GridData gd = new GridData(hfill | GridData.VERTICAL_ALIGN_CENTER); |
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95 gd.horizontalSpan = span; |
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96 text.setLayoutData(gd); |
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97 return text; |
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98 } |
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99 |
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100 public static Text createText(Composite parent, FormToolkit factory, |
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101 int span) { |
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102 Text text = factory.createText(parent, ""); //$NON-NLS-1$ |
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103 int hfill = span is 1 ? GridData.FILL_HORIZONTAL |
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104 : GridData.HORIZONTAL_ALIGN_FILL; |
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105 GridData gd = new GridData(hfill | GridData.VERTICAL_ALIGN_CENTER); |
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106 gd.horizontalSpan = span; |
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107 text.setLayoutData(gd); |
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108 return text; |
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109 } |
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110 |
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111 public static int computeMinimumWidth(GC gc, String text) { |
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112 auto wb = UBreakIterator.openWordIterator( ULocale.Default, text ); |
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113 scope(exit) wb.close(); |
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114 int last = 0; |
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115 int width = 0; |
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116 |
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117 for (int loc = wb.first(); loc !is UBreakIterator.Done; loc = wb.next()) { |
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118 String word = text.substring(last, loc); |
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119 Point extent = gc.textExtent(word); |
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120 width = Math.max(width, extent.x); |
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121 last = loc; |
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122 } |
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123 String lastWord = text.substring(last); |
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124 Point extent = gc.textExtent(lastWord); |
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125 width = Math.max(width, extent.x); |
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126 return width; |
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127 } |
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128 |
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129 public static Point computeWrapSize(GC gc, String text, int wHint) { |
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130 auto wb = UBreakIterator.openWordIterator( ULocale.Default, text ); |
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131 scope(exit) wb.close(); |
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132 FontMetrics fm = gc.getFontMetrics(); |
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133 int lineHeight = fm.getHeight(); |
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134 |
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135 int saved = 0; |
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136 int last = 0; |
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137 int height = lineHeight; |
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138 int maxWidth = 0; |
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139 for (int loc = wb.first(); loc !is UBreakIterator.Done; loc = wb.next()) { |
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140 String word = text.substring(saved, loc); |
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141 Point extent = gc.textExtent(word); |
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142 if (extent.x > wHint) { |
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143 // overflow |
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144 saved = last; |
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145 height += extent.y; |
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146 // switch to current word so maxWidth will accommodate very long single words |
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147 word = text.substring(last, loc); |
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148 extent = gc.textExtent(word); |
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149 } |
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150 maxWidth = Math.max(maxWidth, extent.x); |
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151 last = loc; |
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152 } |
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153 /* |
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154 * Correct the height attribute in case it was calculated wrong due to wHint being less than maxWidth. |
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155 * The recursive call proved to be the only thing that worked in all cases. Some attempts can be made |
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156 * to estimate the height, but the algorithm needs to be run again to be sure. |
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157 */ |
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158 if (maxWidth > wHint) |
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159 return computeWrapSize(gc, text, maxWidth); |
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160 return new Point(maxWidth, height); |
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161 } |
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162 |
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163 public static void paintWrapText(GC gc, String text, Rectangle bounds) { |
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164 paintWrapText(gc, text, bounds, false); |
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165 } |
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166 |
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167 public static void paintWrapText(GC gc, String text, Rectangle bounds, |
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168 bool underline) { |
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169 auto wb = UBreakIterator.openWordIterator( ULocale.Default, text ); |
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170 scope(exit) wb.close(); |
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171 FontMetrics fm = gc.getFontMetrics(); |
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172 int lineHeight = fm.getHeight(); |
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173 int descent = fm.getDescent(); |
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174 |
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175 int saved = 0; |
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176 int last = 0; |
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177 int y = bounds.y; |
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178 int width = bounds.width; |
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179 |
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180 for (int loc = wb.first(); loc !is UBreakIterator.Done; loc = wb.next()) { |
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181 String line = text.substring(saved, loc); |
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182 Point extent = gc.textExtent(line); |
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183 |
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184 if (extent.x > width) { |
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185 // overflow |
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186 String prevLine = text.substring(saved, last); |
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187 gc.drawText(prevLine, bounds.x, y, true); |
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188 if (underline) { |
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189 Point prevExtent = gc.textExtent(prevLine); |
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190 int lineY = y + lineHeight - descent + 1; |
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191 gc |
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192 .drawLine(bounds.x, lineY, bounds.x + prevExtent.x, |
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193 lineY); |
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194 } |
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195 |
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196 saved = last; |
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197 y += lineHeight; |
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198 } |
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199 last = loc; |
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200 } |
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201 // paint the last line |
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202 String lastLine = text.substring(saved, last); |
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203 gc.drawText(lastLine, bounds.x, y, true); |
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204 if (underline) { |
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205 int lineY = y + lineHeight - descent + 1; |
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206 Point lastExtent = gc.textExtent(lastLine); |
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207 gc.drawLine(bounds.x, lineY, bounds.x + lastExtent.x, lineY); |
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208 } |
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209 } |
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210 |
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211 public static ScrolledComposite getScrolledComposite(Control c) { |
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212 Composite parent = c.getParent(); |
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213 |
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214 while (parent !is null) { |
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215 if ( auto sc = cast(ScrolledComposite)parent ) { |
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216 return sc; |
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217 } |
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218 parent = parent.getParent(); |
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219 } |
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220 return null; |
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221 } |
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222 |
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223 public static void ensureVisible(Control c) { |
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224 ScrolledComposite scomp = getScrolledComposite(c); |
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225 if (scomp !is null) { |
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226 Object data = scomp.getData(FOCUS_SCROLLING); |
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227 if (data is null || !data.opEquals(Boolean.FALSE)) |
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228 FormUtil.ensureVisible(scomp, c); |
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229 } |
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230 } |
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231 |
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232 public static void ensureVisible(ScrolledComposite scomp, Control control) { |
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233 // if the control is a FormText we do not need to scroll since it will |
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234 // ensure visibility of its segments as necessary |
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235 if ( auto ft = cast(FormText)control ) |
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236 return; |
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237 Point controlSize = control.getSize(); |
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238 Point controlOrigin = getControlLocation(scomp, control); |
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239 ensureVisible(scomp, controlOrigin, controlSize); |
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240 } |
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241 |
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242 public static void ensureVisible(ScrolledComposite scomp, |
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243 Point controlOrigin, Point controlSize) { |
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244 Rectangle area = scomp.getClientArea(); |
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245 Point scompOrigin = scomp.getOrigin(); |
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246 |
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247 int x = scompOrigin.x; |
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248 int y = scompOrigin.y; |
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249 |
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250 // horizontal right, but only if the control is smaller |
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251 // than the client area |
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252 if (controlSize.x < area.width |
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253 && (controlOrigin.x + controlSize.x > scompOrigin.x |
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254 + area.width)) { |
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255 x = controlOrigin.x + controlSize.x - area.width; |
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256 } |
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257 // horizontal left - make sure the left edge of |
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258 // the control is showing |
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259 if (controlOrigin.x < x) { |
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260 if (controlSize.x < area.width) |
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261 x = controlOrigin.x + controlSize.x - area.width; |
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262 else |
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263 x = controlOrigin.x; |
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264 } |
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265 // vertical bottom |
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266 if (controlSize.y < area.height |
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267 && (controlOrigin.y + controlSize.y > scompOrigin.y |
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268 + area.height)) { |
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269 y = controlOrigin.y + controlSize.y - area.height; |
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270 } |
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271 // vertical top - make sure the top of |
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272 // the control is showing |
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273 if (controlOrigin.y < y) { |
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274 if (controlSize.y < area.height) |
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275 y = controlOrigin.y + controlSize.y - area.height; |
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276 else |
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277 y = controlOrigin.y; |
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278 } |
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279 |
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280 if (scompOrigin.x !is x || scompOrigin.y !is y) { |
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281 // scroll to reveal |
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282 scomp.setOrigin(x, y); |
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283 } |
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284 } |
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285 |
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286 public static void ensureVisible(ScrolledComposite scomp, Control control, |
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287 MouseEvent e) { |
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288 Point controlOrigin = getControlLocation(scomp, control); |
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289 int rX = controlOrigin.x + e.x; |
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290 int rY = controlOrigin.y + e.y; |
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291 Rectangle area = scomp.getClientArea(); |
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292 Point scompOrigin = scomp.getOrigin(); |
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293 |
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294 int x = scompOrigin.x; |
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295 int y = scompOrigin.y; |
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296 // System.out.println("Ensure: area="+area+", origin="+scompOrigin+", |
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297 // cloc="+controlOrigin+", csize="+controlSize+", x="+x+", y="+y); |
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298 |
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299 // horizontal right |
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300 if (rX > scompOrigin.x + area.width) { |
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301 x = rX - area.width; |
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302 } |
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303 // horizontal left |
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304 else if (rX < x) { |
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305 x = rX; |
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306 } |
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307 // vertical bottom |
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308 if (rY > scompOrigin.y + area.height) { |
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309 y = rY - area.height; |
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310 } |
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311 // vertical top |
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312 else if (rY < y) { |
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313 y = rY; |
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314 } |
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315 |
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316 if (scompOrigin.x !is x || scompOrigin.y !is y) { |
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317 // scroll to reveal |
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318 scomp.setOrigin(x, y); |
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319 } |
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320 } |
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321 |
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322 public static Point getControlLocation(ScrolledComposite scomp, |
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323 Control control) { |
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324 int x = 0; |
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325 int y = 0; |
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326 Control content = scomp.getContent(); |
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327 Control currentControl = control; |
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328 for (;;) { |
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329 if (currentControl is content) |
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330 break; |
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331 Point location = currentControl.getLocation(); |
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332 // if (location.x > 0) |
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333 // x += location.x; |
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334 // if (location.y > 0) |
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335 // y += location.y; |
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336 x += location.x; |
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337 y += location.y; |
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338 currentControl = currentControl.getParent(); |
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339 } |
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340 return new Point(x, y); |
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341 } |
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342 |
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343 static void scrollVertical(ScrolledComposite scomp, bool up) { |
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344 scroll(scomp, 0, up ? -V_SCROLL_INCREMENT : V_SCROLL_INCREMENT); |
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345 } |
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346 |
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347 static void scrollHorizontal(ScrolledComposite scomp, bool left) { |
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348 scroll(scomp, left ? -H_SCROLL_INCREMENT : H_SCROLL_INCREMENT, 0); |
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349 } |
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350 |
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351 static void scrollPage(ScrolledComposite scomp, bool up) { |
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352 Rectangle clientArea = scomp.getClientArea(); |
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353 int increment = up ? -clientArea.height : clientArea.height; |
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354 scroll(scomp, 0, increment); |
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355 } |
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356 |
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357 static void scroll(ScrolledComposite scomp, int xoffset, int yoffset) { |
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358 Point origin = scomp.getOrigin(); |
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359 Point contentSize = scomp.getContent().getSize(); |
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360 int xorigin = origin.x + xoffset; |
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361 int yorigin = origin.y + yoffset; |
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362 xorigin = Math.max(xorigin, 0); |
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363 xorigin = Math.min(xorigin, contentSize.x - 1); |
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364 yorigin = Math.max(yorigin, 0); |
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365 yorigin = Math.min(yorigin, contentSize.y - 1); |
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366 scomp.setOrigin(xorigin, yorigin); |
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|
367 } |
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|
368 |
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369 public static void updatePageIncrement(ScrolledComposite scomp) { |
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370 ScrollBar vbar = scomp.getVerticalBar(); |
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371 if (vbar !is null) { |
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372 Rectangle clientArea = scomp.getClientArea(); |
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373 int increment = clientArea.height - 5; |
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374 vbar.setPageIncrement(increment); |
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375 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
376 ScrollBar hbar = scomp.getHorizontalBar(); |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
377 if (hbar !is null) { |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
378 Rectangle clientArea = scomp.getClientArea(); |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
379 int increment = clientArea.width - 5; |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
380 hbar.setPageIncrement(increment); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
381 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
382 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
383 |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
384 public static void processKey(int keyCode, Control c) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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changeset
|
385 ScrolledComposite scomp = FormUtil.getScrolledComposite(c); |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
386 if (scomp !is null) { |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
387 if (null !is cast(Combo)c ) |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
388 return; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
389 switch (keyCode) { |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
390 case SWT.ARROW_DOWN: |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
391 if (scomp.getData("novarrows") is null) //$NON-NLS-1$ |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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changeset
|
392 FormUtil.scrollVertical(scomp, false); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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|
393 break; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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changeset
|
394 case SWT.ARROW_UP: |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
395 if (scomp.getData("novarrows") is null) //$NON-NLS-1$ |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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changeset
|
396 FormUtil.scrollVertical(scomp, true); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
397 break; |
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Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
398 case SWT.ARROW_LEFT: |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
399 FormUtil.scrollHorizontal(scomp, true); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
400 break; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
401 case SWT.ARROW_RIGHT: |
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parents:
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changeset
|
402 FormUtil.scrollHorizontal(scomp, false); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
403 break; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
404 case SWT.PAGE_UP: |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
405 FormUtil.scrollPage(scomp, true); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
406 break; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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|
407 case SWT.PAGE_DOWN: |
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Frank Benoit <benoit@tionex.de>
parents:
diff
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|
408 FormUtil.scrollPage(scomp, false); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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|
409 break; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
410 default: |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
411 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
412 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
413 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
414 |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
415 public static bool isWrapControl(Control c) { |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
416 if ((c.getStyle() & SWT.WRAP) !is 0) |
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|
417 return true; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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changeset
|
418 if (auto comp = cast(Composite)c ) { |
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419 return ( null !is cast(ILayoutExtension)( comp.getLayout() )); |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
420 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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|
421 return false; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
422 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
423 |
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Frank Benoit <benoit@tionex.de>
parents:
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changeset
|
424 public static int getWidthHint(int wHint, Control c) { |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
425 bool wrap = isWrapControl(c); |
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parents:
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|
426 return wrap ? wHint : SWT.DEFAULT; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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|
427 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
428 |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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diff
changeset
|
429 public static int getHeightHint(int hHint, Control c) { |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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changeset
|
430 if ( auto comp = cast(Composite)c ) { |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
431 Layout layout = comp.getLayout(); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
432 if (null !is cast(ColumnLayout)layout ) |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
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|
433 return hHint; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
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|
434 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
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|
435 return SWT.DEFAULT; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
436 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
437 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
438 public static int computeMinimumWidth(Control c, bool changed) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
439 if ( auto comp = cast(Composite)c ) { |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
440 Layout layout = comp.getLayout(); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
441 if ( auto le = cast(ILayoutExtension)layout ) |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
442 return le.computeMinimumWidth( |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
443 comp, changed); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
444 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
445 return c.computeSize(FormUtil.getWidthHint(5, c), SWT.DEFAULT, changed).x; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
446 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
447 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
448 public static int computeMaximumWidth(Control c, bool changed) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
449 if ( auto comp = cast(Composite)c ) { |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
450 Layout layout = comp.getLayout(); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
451 if ( auto le = cast(ILayoutExtension)layout ) |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
452 return le.computeMaximumWidth( |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
453 comp, changed); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
454 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
455 return c.computeSize(SWT.DEFAULT, SWT.DEFAULT, changed).x; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
456 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
457 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
458 public static Form getForm(Control c) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
459 Composite parent = c.getParent(); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
460 while (parent !is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
461 if ( auto frm = cast(Form)parent ) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
462 return frm; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
463 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
464 parent = parent.getParent(); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
465 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
466 return null; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
467 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
468 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
469 public static Image createAlphaMashImage(Device device, Image srcImage) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
470 Rectangle bounds = srcImage.getBounds(); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
471 int alpha = 0; |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
472 int calpha = 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
473 ImageData data = srcImage.getImageData(); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
474 // Create a new image with alpha values alternating |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
475 // between fully transparent (0) and fully opaque (255). |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
476 // This image will show the background through the |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
477 // transparent pixels. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
478 for (int i = 0; i < bounds.height; i++) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
479 // scan line |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
480 alpha = calpha; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
481 for (int j = 0; j < bounds.width; j++) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
482 // column |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
483 data.setAlpha(j, i, alpha); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
484 alpha = alpha is 255 ? 0 : 255; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
485 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
486 calpha = calpha is 255 ? 0 : 255; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
487 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
488 return new Image(device, data); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
489 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
490 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
491 public static bool mnemonicMatch(String text, dchar key) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
492 char mnemonic = findMnemonic(text); |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
493 if (mnemonic is '\0') |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
494 return false; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
495 return CharacterToUpper(key) is CharacterToUpper(mnemonic); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
496 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
497 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
498 private static char findMnemonic(String string) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
499 int index = 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
500 int length = string.length; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
501 do { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
502 while (index < length && string.charAt(index) !is '&') |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
503 index++; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
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504 if (++index >= length) |
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505 return '\0'; |
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506 if (string.charAt(index) !is '&') |
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507 return string.charAt(index); |
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508 index++; |
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509 } while (index < length); |
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510 return '\0'; |
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511 } |
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512 |
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513 public static void setFocusScrollingEnabled(Control c, bool enabled) { |
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514 ScrolledComposite scomp = null; |
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515 |
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516 if ( auto sc = cast(ScrolledComposite)c ) |
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517 scomp = sc; |
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518 else |
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519 scomp = getScrolledComposite(c); |
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520 if (scomp !is null) |
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521 scomp.setData(FormUtil.FOCUS_SCROLLING, enabled ? null : Boolean.FALSE); |
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522 } |
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523 |
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524 public static void setAntialias(GC gc, int style) { |
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525 if (!gc.getAdvanced()) { |
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526 gc.setAdvanced(true); |
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527 if (!gc.getAdvanced()) |
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528 return; |
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529 } |
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530 gc.setAntialias(style); |
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531 } |
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532 } |