Mercurial > projects > dwt2
annotate org.eclipse.ui.forms/src/org/eclipse/ui/internal/forms/widgets/TextSegment.d @ 92:ebefa5c2eab4
moving ICU bindings to com.ibm.icu
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 19 Apr 2009 13:49:38 +0200 |
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1 /******************************************************************************* |
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2 * Copyright (c) 2000, 2008 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.TextSegment; |
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14 |
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15 import java.lang.all; |
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16 |
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17 import org.eclipse.ui.internal.forms.widgets.ParagraphSegment; |
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18 import org.eclipse.ui.internal.forms.widgets.Locator; |
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19 import org.eclipse.ui.internal.forms.widgets.SelectionData; |
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20 import org.eclipse.ui.internal.forms.widgets.FormTextModel; |
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21 |
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22 import java.util.ArrayList; |
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23 import java.util.Hashtable; |
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24 import java.util.Vector; |
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25 import java.util.Set; |
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26 |
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27 import org.eclipse.swt.SWT; |
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28 import org.eclipse.swt.graphics.Color; |
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29 import org.eclipse.swt.graphics.Font; |
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30 import org.eclipse.swt.graphics.FontMetrics; |
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31 import org.eclipse.swt.graphics.GC; |
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32 import org.eclipse.swt.graphics.Point; |
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33 import org.eclipse.swt.graphics.Rectangle; |
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34 |
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35 import com.ibm.icu.text.BreakIterator; |
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36 |
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37 /** |
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38 * @version 1.0 |
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39 * @author |
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40 */ |
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41 public class TextSegment : ParagraphSegment { |
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42 |
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43 private String colorId; |
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44 |
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45 private String fontId; |
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46 |
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47 private String text; |
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48 |
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49 protected bool underline; |
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50 |
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51 private bool wrapAllowed = true; |
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52 |
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53 protected Vector areaRectangles; |
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54 |
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55 private TextFragment[] textFragments; |
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56 |
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57 class AreaRectangle { |
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58 Rectangle rect; |
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59 |
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60 int from, to; |
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61 |
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62 public this(Rectangle rect, int from, int to) { |
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63 this.rect = rect; |
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64 this.from = from; |
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65 this.to = to; |
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66 } |
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67 |
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68 public bool contains(int x, int y) { |
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69 return rect.contains(x, y); |
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70 } |
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71 |
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72 public bool intersects(Rectangle region) { |
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73 return rect.intersects(region); |
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74 } |
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75 |
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76 public String getText() { |
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77 if (from is 0 && to is -1) |
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78 return this.outer.getText(); |
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79 if (from > 0 && to is -1) |
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80 return this.outer.getText().substring(from); |
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81 return this.outer.getText().substring(from, to); |
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82 } |
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83 } |
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84 |
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85 static class SelectionRange { |
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86 public int start; |
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87 |
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88 public int stop; |
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89 |
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90 public this() { |
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91 reset(); |
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92 } |
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93 |
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94 public void reset() { |
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95 start = -1; |
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96 stop = -1; |
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97 } |
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98 } |
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99 |
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100 static class TextFragment { |
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101 short index; |
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102 |
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103 short length; |
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104 |
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105 public this(short index, short length) { |
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106 this.index = index; |
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107 this.length = length; |
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108 } |
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109 } |
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110 |
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111 public this(String text, String fontId) { |
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112 this(text, fontId, null, true); |
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113 } |
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114 |
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115 public this(String text, String fontId, String colorId) { |
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116 this(text, fontId, colorId, true); |
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117 } |
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118 |
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119 public this(String text, String fontId, String colorId, bool wrapAllowed) { |
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120 areaRectangles = new Vector(); |
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121 this.text = cleanup(text); |
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122 this.fontId = fontId; |
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123 this.colorId = colorId; |
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124 this.wrapAllowed = wrapAllowed; |
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125 } |
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126 |
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127 private String cleanup(String text) { |
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128 StringBuffer buf = new StringBuffer(); |
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129 for (int i = 0; i < text.length; i++) { |
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130 char c = text.charAt(i); |
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131 if (c is '\n' || c is '\r' || c is '\f') { |
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132 if (i > 0) |
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133 buf.append(' '); |
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134 } else |
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135 buf.append(c); |
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136 } |
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137 return buf.toString(); |
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138 } |
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139 |
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140 public void setWordWrapAllowed(bool value) { |
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141 wrapAllowed = value; |
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142 } |
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143 |
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144 public bool isWordWrapAllowed() { |
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145 return wrapAllowed; |
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146 } |
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147 |
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148 public bool isSelectable() { |
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149 return false; |
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150 } |
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151 |
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152 public String getColorId() { |
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153 return colorId; |
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154 } |
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155 |
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156 public String getText() { |
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157 return text; |
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158 } |
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159 |
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160 void setText(String text) { |
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161 this.text = cleanup(text); |
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162 textFragments = null; |
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163 } |
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164 |
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165 void setColorId(String colorId) { |
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166 this.colorId = colorId; |
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167 } |
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168 |
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169 void setFontId(String fontId) { |
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170 this.fontId = fontId; |
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171 textFragments = null; |
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172 } |
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173 |
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174 public bool contains(int x, int y) { |
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175 for (int i = 0; i < areaRectangles.size(); i++) { |
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176 AreaRectangle ar = cast(AreaRectangle) areaRectangles.get(i); |
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177 if (ar.contains(x, y)) |
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178 return true; |
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179 if (i<areaRectangles.size()-1) { |
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180 // test the gap |
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181 Rectangle top = ar.rect; |
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182 Rectangle bot = (cast(AreaRectangle)areaRectangles.get(i+1)).rect; |
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183 if (y >= top.y+top.height && y < bot.y) { |
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184 // in the gap |
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185 int left = Math.max(top.x, bot.x); |
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186 int right = Math.min(top.x+top.width, bot.x+bot.width); |
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187 if (x>=left && x<=right) { |
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188 return true; |
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189 } |
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190 } |
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191 } |
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192 } |
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193 return false; |
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194 } |
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195 |
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196 public bool intersects(Rectangle rect) { |
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197 for (int i = 0; i < areaRectangles.size(); i++) { |
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198 AreaRectangle ar = cast(AreaRectangle) areaRectangles.get(i); |
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199 if (ar.intersects(rect)) |
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200 return true; |
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201 if (i<areaRectangles.size()-1) { |
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202 // test the gap |
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203 Rectangle top = ar.rect; |
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204 Rectangle bot = (cast(AreaRectangle)areaRectangles.get(i+1)).rect; |
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205 if (top.y+top.height < bot.y) { |
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206 int y = top.y+top.height; |
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207 int height = bot.y-y; |
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208 int left = Math.max(top.x, bot.x); |
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209 int right = Math.min(top.x+top.width, bot.x+bot.width); |
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210 Rectangle gap = new Rectangle(left, y, right-left, height); |
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211 if (gap.intersects(rect)) |
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212 return true; |
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213 } |
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214 } |
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215 } |
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216 return false; |
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217 } |
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218 |
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219 public Rectangle getBounds() { |
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220 int x = 0, y = 0; |
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221 int width = 0, height = 0; |
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222 |
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223 for (int i = 0; i < areaRectangles.size(); i++) { |
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224 AreaRectangle ar = cast(AreaRectangle) areaRectangles.get(i); |
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225 if (i is 0) { |
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226 x = ar.rect.x; |
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227 y = ar.rect.y; |
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228 } else |
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229 x = Math.min(ar.rect.x, x); |
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230 width = Math.max(ar.rect.width, width); |
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231 height += ar.rect.height; |
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232 } |
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233 return new Rectangle(x, y, width, height); |
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234 } |
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235 |
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236 public bool advanceLocator(GC gc, int wHint, Locator locator, |
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237 Hashtable objectTable, bool computeHeightOnly) { |
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238 Font oldFont = null; |
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239 if (fontId !is null) { |
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240 oldFont = gc.getFont(); |
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241 Font newFont = cast(Font) objectTable.get(fontId); |
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242 if (newFont !is null) |
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243 gc.setFont(newFont); |
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244 } |
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245 FontMetrics fm = gc.getFontMetrics(); |
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246 int lineHeight = fm.getHeight(); |
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247 bool newLine = false; |
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248 |
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249 if (wHint is SWT.DEFAULT || !wrapAllowed) { |
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250 Point extent = gc.textExtent(text); |
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251 int totalExtent = locator.x+extent.x; |
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252 if (isSelectable()) |
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253 totalExtent+=1; |
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254 |
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255 if (wHint !is SWT.DEFAULT && totalExtent > wHint) { |
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256 // new line |
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257 locator.x = locator.indent; |
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258 locator.y += locator.rowHeight; |
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259 if (computeHeightOnly) |
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260 locator.collectHeights(); |
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261 locator.rowHeight = 0; |
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262 locator.leading = 0; |
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263 newLine = true; |
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264 } |
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265 int width = extent.x; |
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266 if (isSelectable()) |
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267 width += 1; |
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268 locator.x += width; |
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269 locator.width = locator.indent + width; |
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270 locator.rowHeight = Math.max(locator.rowHeight, extent.y); |
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271 locator.leading = Math.max(locator.leading, fm.getLeading()); |
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272 return newLine; |
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273 } |
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274 |
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275 computeTextFragments(gc); |
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276 |
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277 int width = 0; |
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278 Point lineExtent = new Point(0, 0); |
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279 |
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280 for (int i = 0; i < textFragments.length; i++) { |
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281 TextFragment textFragment = textFragments[i]; |
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282 int currentExtent = locator.x + lineExtent.x; |
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283 |
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284 if (isSelectable()) |
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285 currentExtent += 1; |
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286 |
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287 // i !is 0 || locator.x > locator.getStartX() + (isSelectable() ? 1 : 0) means: |
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288 // only wrap on the first fragment if we are not at the start of a line |
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289 if ((i !is 0 || locator.x > locator.getStartX() + (isSelectable() ? 1 : 0)) && currentExtent + textFragment.length > wHint) { |
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290 // overflow |
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291 int lineWidth = currentExtent; |
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292 locator.rowHeight = Math.max(locator.rowHeight, lineExtent.y); |
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293 locator.leading = Math.max(locator.leading, fm.getLeading()); |
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294 if (computeHeightOnly) |
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295 locator.collectHeights(); |
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296 locator.x = locator.indent; |
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297 locator.y += locator.rowHeight; |
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298 locator.rowHeight = 0; |
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299 locator.leading = 0; |
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300 lineExtent.x = 0; |
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301 lineExtent.y = 0; |
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302 width = Math.max(width, lineWidth); |
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303 newLine = true; |
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304 } |
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305 lineExtent.x += textFragment.length; |
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306 lineExtent.y = Math.max(lineHeight, lineExtent.y); |
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307 } |
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308 int lineWidth = lineExtent.x; |
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309 if (isSelectable()) |
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310 lineWidth += 1; |
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311 locator.x += lineWidth; |
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312 locator.width = width; |
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313 locator.rowHeight = Math.max(locator.rowHeight, lineExtent.y); |
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314 locator.leading = Math.max(locator.leading, fm.getLeading()); |
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315 if (oldFont !is null) { |
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316 gc.setFont(oldFont); |
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317 } |
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318 return newLine; |
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319 } |
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320 |
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321 /** |
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322 * @param gc |
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323 * @param width |
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324 * @param locator |
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325 * @param selected |
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326 * @param selData |
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327 * @param color |
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328 * @param fm |
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329 * @param lineHeight |
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330 * @param descent |
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331 */ |
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332 private void layoutWithoutWrapping(GC gc, int width, Locator locator, |
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333 bool selected, FontMetrics fm, int lineHeight, int descent) { |
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334 Point extent = gc.textExtent(text); |
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335 int ewidth = extent.x; |
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336 if (isSelectable()) |
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337 ewidth += 1; |
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338 if (locator.x + ewidth > width-locator.marginWidth) { |
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339 // new line |
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340 locator.resetCaret(); |
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341 locator.y += locator.rowHeight; |
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342 locator.rowHeight = 0; |
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343 locator.rowCounter++; |
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344 } |
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345 int ly = locator.getBaseline(fm.getHeight() - fm.getLeading()); |
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346 //int lineY = ly + lineHeight - descent + 1; |
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347 Rectangle br = new Rectangle(locator.x, ly, ewidth, |
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348 lineHeight - descent + 3); |
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349 areaRectangles.add(new AreaRectangle(br, 0, -1)); |
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350 locator.x += ewidth; |
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351 locator.width = ewidth; |
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352 locator.rowHeight = Math.max(locator.rowHeight, extent.y); |
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353 } |
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354 |
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355 protected int convertOffsetToStringIndex(GC gc, String s, int x, |
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356 int swidth, int selOffset) { |
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357 int index = s.length; |
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358 while (index > 0 && x + swidth > selOffset) { |
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359 index--; |
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360 String ss = s.substring(0, index); |
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361 swidth = gc.textExtent(ss).x; |
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362 } |
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363 return index; |
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364 } |
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365 |
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366 public void paintFocus(GC gc, Color bg, Color fg, bool selected, |
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367 Rectangle repaintRegion) { |
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368 if (areaRectangles is null) |
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369 return; |
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370 for (int i = 0; i < areaRectangles.size(); i++) { |
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371 AreaRectangle areaRectangle = cast(AreaRectangle) areaRectangles.get(i); |
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372 Rectangle br = areaRectangle.rect; |
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373 int bx = br.x; |
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374 int by = br.y; |
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375 if (repaintRegion !is null) { |
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376 bx -= repaintRegion.x; |
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377 by -= repaintRegion.y; |
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378 } |
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379 if (selected) { |
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380 gc.setBackground(bg); |
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381 gc.setForeground(fg); |
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382 gc.drawFocus(bx, by, br.width, br.height); |
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383 } else { |
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384 gc.setForeground(bg); |
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385 gc.drawRectangle(bx, by, br.width - 1, br.height - 1); |
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386 } |
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387 } |
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388 } |
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389 |
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390 public void paint(GC gc, bool hover, Hashtable resourceTable, |
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391 bool selected, SelectionData selData, Rectangle repaintRegion) { |
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392 this.paint(gc, hover, resourceTable, selected, false, selData, |
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393 repaintRegion); |
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394 } |
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395 |
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396 protected void paint(GC gc, bool hover, Hashtable resourceTable, |
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397 bool selected, bool rollover, SelectionData selData, |
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398 Rectangle repaintRegion) { |
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399 Font oldFont = null; |
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400 Color oldColor = null; |
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401 Color oldBg = null; |
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402 |
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403 // apply segment-specific font, color and background |
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parents:
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404 if (fontId !is null) { |
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405 oldFont = gc.getFont(); |
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406 Font newFont = cast(Font) resourceTable.get(fontId); |
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407 if (newFont !is null) |
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408 gc.setFont(newFont); |
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409 } |
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410 if (!hover && colorId !is null) { |
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Added dwt-addons in original directory structure of eclipse.org
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411 oldColor = gc.getForeground(); |
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412 Color newColor = cast(Color) resourceTable.get(colorId); |
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413 if (newColor !is null) |
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414 gc.setForeground(newColor); |
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415 } |
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416 oldBg = gc.getBackground(); |
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417 |
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418 FontMetrics fm = gc.getFontMetrics(); |
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419 int lineHeight = fm.getHeight(); |
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420 int descent = fm.getDescent(); |
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421 |
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422 // paint area rectangles of the segment |
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423 for (int i = 0; i < areaRectangles.size(); i++) { |
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424 AreaRectangle areaRectangle = cast(AreaRectangle) areaRectangles.get(i); |
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425 Rectangle rect = areaRectangle.rect; |
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426 String text = areaRectangle.getText(); |
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427 Point extent = gc.textExtent(text); |
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428 int textX = rect.x + (isSelectable()?1:0); |
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429 int lineY = rect.y + lineHeight - descent + 1; |
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430 paintString(gc, text, extent.x, textX, rect.y, lineY, selData, |
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431 rect, hover, rollover, repaintRegion); |
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432 if (selected) { |
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433 int fx = rect.x; |
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434 int fy = rect.y; |
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435 if (repaintRegion !is null) { |
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436 fx -= repaintRegion.x; |
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437 fy -= repaintRegion.y; |
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438 } |
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439 //To avoid partially cancelling the focus by painting over |
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440 //X-ORed pixels, first cancel it yourself |
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441 Color fg = gc.getForeground(); |
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442 gc.setForeground(oldBg); |
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443 gc.drawRectangle(fx, fy, rect.width - 1, rect.height - 1); |
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444 gc.setForeground(fg); |
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445 gc.drawFocus(fx, fy, rect.width, rect.height); |
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Added dwt-addons in original directory structure of eclipse.org
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446 } |
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447 } |
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448 // restore GC resources |
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449 if (oldFont !is null) { |
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450 gc.setFont(oldFont); |
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451 } |
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452 if (oldColor !is null) { |
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453 gc.setForeground(oldColor); |
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454 } |
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455 if (oldBg !is null) { |
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456 gc.setBackground(oldBg); |
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457 } |
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|
458 } |
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|
459 |
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460 public void computeSelection(GC gc, Hashtable resourceTable, SelectionData selData) { |
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461 Font oldFont = null; |
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462 |
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463 if (fontId !is null) { |
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464 oldFont = gc.getFont(); |
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465 Font newFont = cast(Font) resourceTable.get(fontId); |
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466 if (newFont !is null) |
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467 gc.setFont(newFont); |
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|
468 } |
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|
469 |
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|
470 for (int i = 0; i < areaRectangles.size(); i++) { |
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|
471 AreaRectangle areaRectangle = cast(AreaRectangle) areaRectangles.get(i); |
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472 Rectangle rect = areaRectangle.rect; |
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473 String text = areaRectangle.getText(); |
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|
474 Point extent = gc.textExtent(text); |
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|
475 computeSelection(gc, text, extent.x, selData, |
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|
476 rect); |
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|
477 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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|
478 // restore GC resources |
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|
479 if (oldFont !is null) { |
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|
480 gc.setFont(oldFont); |
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Added dwt-addons in original directory structure of eclipse.org
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|
481 } |
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|
482 } |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
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|
483 |
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|
484 private void paintString(GC gc, String s, int swidth, int x, int y, |
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|
485 int lineY, SelectionData selData, Rectangle bounds, bool hover, |
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parents:
diff
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|
486 bool rolloverMode, Rectangle repaintRegion) { |
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diff
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|
487 // repaints one area rectangle |
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diff
changeset
|
488 if (selData !is null && selData.isEnclosed()) { |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
489 Color savedBg = gc.getBackground(); |
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diff
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|
490 Color savedFg = gc.getForeground(); |
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parents:
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|
491 int leftOffset = selData.getLeftOffset(bounds.height); |
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|
492 int rightOffset = selData.getRightOffset(bounds.height); |
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diff
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|
493 bool firstRow = selData.isFirstSelectionRow(bounds.y, |
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Added dwt-addons in original directory structure of eclipse.org
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diff
changeset
|
494 bounds.height); |
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changeset
|
495 bool lastRow = selData.isLastSelectionRow(bounds.y, |
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diff
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|
496 bounds.height); |
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diff
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|
497 bool selectedRow = selData |
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changeset
|
498 .isSelectedRow(bounds.y, bounds.height); |
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diff
changeset
|
499 |
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parents:
diff
changeset
|
500 int sstart = -1; |
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parents:
diff
changeset
|
501 int sstop = -1; |
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parents:
diff
changeset
|
502 |
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parents:
diff
changeset
|
503 if ((firstRow && x + swidth < leftOffset) |
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|
504 || (lastRow && x > rightOffset)) { |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
505 paintStringSegment(gc, s, gc.textExtent(s).x, x, y, lineY, |
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parents:
diff
changeset
|
506 hover, rolloverMode, repaintRegion); |
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parents:
diff
changeset
|
507 return; |
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Added dwt-addons in original directory structure of eclipse.org
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parents:
diff
changeset
|
508 } |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
509 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
510 if (firstRow && bounds.x + swidth > leftOffset) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
511 sstart = convertOffsetToStringIndex(gc, s, bounds.x, swidth, |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
512 leftOffset); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
513 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
514 if (lastRow && bounds.x + swidth > rightOffset) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
515 sstop = convertOffsetToStringIndex(gc, s, bounds.x, swidth, |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
516 rightOffset); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
517 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
518 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
519 if (firstRow && sstart !is -1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
520 String left = s.substring(0, sstart); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
521 int width = gc.textExtent(left).x; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
522 paintStringSegment(gc, left, width, x, y, lineY, hover, |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
523 rolloverMode, repaintRegion); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
524 x += width; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
525 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
526 if (selectedRow) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
527 int lindex = sstart !is -1 ? sstart : 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
528 int rindex = sstop !is -1 ? sstop : s.length; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
529 String mid = s.substring(lindex, rindex); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
530 Point extent = gc.textExtent(mid); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
531 gc.setForeground(selData.fg); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
532 gc.setBackground(selData.bg); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
533 gc.fillRectangle(x, y, extent.x, extent.y); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
534 paintStringSegment(gc, mid, extent.x, x, y, lineY, hover, |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
535 rolloverMode, repaintRegion); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
536 x += extent.x; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
537 gc.setForeground(savedFg); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
538 gc.setBackground(savedBg); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
539 } else { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
540 paintStringSegment(gc, s, gc.textExtent(s).x, x, y, lineY, |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
541 hover, rolloverMode, repaintRegion); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
542 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
543 if (lastRow && sstop !is -1) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
544 String right = s.substring(sstop); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
545 paintStringSegment(gc, right, gc.textExtent(right).x, x, y, |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
546 lineY, hover, rolloverMode, repaintRegion); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
547 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
548 } else { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
549 paintStringSegment(gc, s, gc.textExtent(s).x, x, y, lineY, hover, |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
550 rolloverMode, repaintRegion); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
551 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
552 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
553 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
554 private void computeSelection(GC gc, String s, int swidth, SelectionData selData, Rectangle bounds) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
555 int leftOffset = selData.getLeftOffset(bounds.height); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
556 int rightOffset = selData.getRightOffset(bounds.height); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
557 bool firstRow = selData.isFirstSelectionRow(bounds.y, bounds.height); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
558 bool lastRow = selData.isLastSelectionRow(bounds.y, bounds.height); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
559 bool selectedRow = selData.isSelectedRow(bounds.y, bounds.height); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
560 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
561 int sstart = -1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
562 int sstop = -1; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
563 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
564 if (firstRow && bounds.x + swidth > leftOffset) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
565 sstart = convertOffsetToStringIndex(gc, s, bounds.x, swidth, |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
566 leftOffset); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
567 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
568 if (lastRow && bounds.x + swidth > rightOffset) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
569 sstop = convertOffsetToStringIndex(gc, s, bounds.x, swidth, |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
570 rightOffset); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
571 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
572 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
573 if (selectedRow) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
574 int lindex = sstart !is -1 ? sstart : 0; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
575 int rindex = sstop !is -1 ? sstop : s.length; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
576 String mid = s.substring(lindex, rindex); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
577 selData.addSegment(mid); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
578 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
579 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
580 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
581 /** |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
582 * @param gc |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
583 * @param s |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
584 * @param x |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
585 * @param y |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
586 * @param lineY |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
587 * @param hover |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
588 * @param rolloverMode |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
589 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
590 private void paintStringSegment(GC gc, String s, int swidth, int x, int y, |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
591 int lineY, bool hover, bool rolloverMode, |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
592 Rectangle repaintRegion) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
593 bool reverse = false; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
594 int clipX = x; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
595 int clipY = y; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
596 int clipLineY = lineY; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
597 if (repaintRegion !is null) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
598 clipX -= repaintRegion.x; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
599 clipY -= repaintRegion.y; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
600 clipLineY -= repaintRegion.y; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
601 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
602 if (underline || hover || rolloverMode) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
603 if (rolloverMode && !hover) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
604 reverse = true; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
605 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
606 if (reverse) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
607 drawUnderline(gc, swidth, clipX, clipLineY, hover, rolloverMode); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
608 drawString(gc, s, clipX, clipY); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
609 } else { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
610 drawString(gc, s, clipX, clipY); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
611 drawUnderline(gc, swidth, clipX, clipLineY, hover, rolloverMode); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
612 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
613 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
614 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
615 protected void drawString(GC gc, String s, int clipX, int clipY) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
616 gc.drawString(s, clipX, clipY, true); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
617 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
618 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
619 private void drawUnderline(GC gc, int swidth, int x, int y, bool hover, |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
620 bool rolloverMode) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
621 if (underline || hover || rolloverMode) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
622 Color saved = null; |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
623 if (rolloverMode && !hover) { |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
624 saved = gc.getForeground(); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
625 gc.setForeground(gc.getBackground()); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
626 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
627 gc.drawLine(x, y, x + swidth-1, y); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
628 if (saved !is null) |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
629 gc.setForeground(saved); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
630 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
631 } |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
632 |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
633 /* |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
634 * (non-Javadoc) |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
635 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
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636 * @see org.eclipse.ui.internal.forms.widgets.ParagraphSegment#layout(org.eclipse.swt.graphics.GC, |
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637 * int, org.eclipse.ui.internal.forms.widgets.Locator, |
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638 * java.util.Hashtable, bool, |
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639 * org.eclipse.ui.internal.forms.widgets.SelectionData) |
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640 */ |
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641 public void layout(GC gc, int width, Locator locator, |
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642 Hashtable resourceTable, bool selected) { |
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643 Font oldFont = null; |
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644 |
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645 areaRectangles.clear(); |
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646 |
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647 if (fontId !is null) { |
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648 oldFont = gc.getFont(); |
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649 Font newFont = cast(Font) resourceTable.get(fontId); |
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650 if (newFont !is null) |
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651 gc.setFont(newFont); |
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652 } |
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653 FontMetrics fm = gc.getFontMetrics(); |
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654 int lineHeight = fm.getHeight(); |
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655 int descent = fm.getDescent(); |
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656 |
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657 if (!wrapAllowed) { |
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658 layoutWithoutWrapping(gc, width, locator, selected, fm, lineHeight, |
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659 descent); |
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660 } else { |
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661 int lineStart = 0; |
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662 int lastLoc = 0; |
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663 Point lineExtent = new Point(0, 0); |
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664 computeTextFragments(gc); |
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665 int rightEdge = width-locator.marginWidth; |
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666 for (int i = 0; i < textFragments.length; i++) { |
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667 TextFragment fragment = textFragments[i]; |
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668 int breakLoc = fragment.index; |
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669 if (breakLoc is 0) |
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670 continue; |
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671 // (i !is 0 || locator.x > locator.getStartX() + (isSelectable() ? 1 : 0)) means: |
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672 // only wrap on the first fragment if we are not at the start of a line |
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673 if ((i !is 0 || locator.x > locator.getStartX() + (isSelectable() ? 1 : 0)) && locator.x + lineExtent.x + fragment.length > rightEdge) { |
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674 // overflow |
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675 int lineWidth = locator.x + lineExtent.x; |
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676 if (isSelectable()) |
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677 lineWidth += 1; |
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678 int ly = locator.getBaseline(lineHeight - fm.getLeading()); |
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679 Rectangle br = new Rectangle(isSelectable()? |
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680 locator.x - 1:locator.x, ly, |
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681 isSelectable()?lineExtent.x + 1:lineExtent.x, lineHeight - descent + 3); |
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682 areaRectangles |
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683 .add(new AreaRectangle(br, lineStart, lastLoc)); |
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684 |
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685 locator.rowHeight = Math.max(locator.rowHeight, |
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686 lineExtent.y); |
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687 locator.resetCaret(); |
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688 if (isSelectable()) |
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689 locator.x += 1; |
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690 locator.y += locator.rowHeight; |
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691 locator.rowCounter++; |
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692 locator.rowHeight = 0; |
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693 lineStart = lastLoc; |
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694 lineExtent.x = 0; |
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695 lineExtent.y = 0; |
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696 } |
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697 lastLoc = breakLoc; |
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698 lineExtent.x += fragment.length; |
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699 lineExtent.y = Math.max(lineHeight, lineExtent.y); |
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700 } |
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701 //String lastLine = text.substring(lineStart, lastLoc); |
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702 int ly = locator.getBaseline(lineHeight - fm.getLeading()); |
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703 int lastWidth = lineExtent.x; |
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704 if (isSelectable()) |
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705 lastWidth += 1; |
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706 Rectangle br = new Rectangle(isSelectable()?locator.x - 1:locator.x, ly, |
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707 isSelectable()?lineExtent.x + 1:lineExtent.x, |
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708 lineHeight - descent + 3); |
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709 //int lineY = ly + lineHeight - descent + 1; |
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710 areaRectangles.add(new AreaRectangle(br, lineStart, lastLoc)); |
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711 locator.x += lastWidth; |
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712 locator.rowHeight = Math.max(locator.rowHeight, lineExtent.y); |
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713 } |
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714 if (oldFont !is null) { |
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715 gc.setFont(oldFont); |
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716 } |
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|
717 } |
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|
718 |
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719 private void computeTextFragments(GC gc) { |
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720 if (textFragments !is null) |
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721 return; |
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722 ArrayList list = new ArrayList(); |
92
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723 BreakIterator wb = BreakIterator.getLineInstance(); |
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724 wb.setText(getText()); |
12
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725 int cursor = 0; |
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726 for (int loc = wb.first(); loc !is BreakIterator.DONE; loc = wb.next()) { |
12
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727 if (loc is 0) |
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|
728 continue; |
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729 String word = text.substring(cursor, loc); |
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730 Point extent = gc.textExtent(word); |
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731 list.add(new TextFragment(cast(short) loc, cast(short) extent.x)); |
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732 cursor = loc; |
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733 } |
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734 textFragments = arraycast!(TextFragment)(list.toArray()); |
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735 } |
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736 |
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|
737 public void clearCache(String fontId) { |
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738 if (fontId is null && (this.fontId is null||this.fontId.equals(FormTextModel.BOLD_FONT_ID))) |
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739 textFragments = null; |
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740 else if (fontId !is null && this.fontId !is null && fontId.equals(this.fontId)) |
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|
741 textFragments = null; |
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742 } |
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743 } |