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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 * 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 dwtx.ui.internal.forms.widgets.TextSegment;
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14
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15 import dwtx.ui.internal.forms.widgets.ParagraphSegment;
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16 import dwtx.ui.internal.forms.widgets.Locator;
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17 import dwtx.ui.internal.forms.widgets.SelectionData;
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18
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19 import dwt.DWT;
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20 import dwt.graphics.Color;
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21 import dwt.graphics.Font;
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22 import dwt.graphics.FontMetrics;
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23 import dwt.graphics.GC;
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24 import dwt.graphics.Point;
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25 import dwt.graphics.Rectangle;
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26
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27 import dwt.dwthelper.utils;
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28 import tango.util.collection.ArraySeq;
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29
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30 /**
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31 * @version 1.0
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32 * @author
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33 */
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34 public class TextSegment : ParagraphSegment {
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35
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36 //DWT_TODO temp type
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37 static class BreakIterator{
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38
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39 public static const int DONE = 0;
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40
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41 public static BreakIterator getLineInstance() {
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42 // TODO Auto-generated method stub
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43 return null;
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44 }
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45
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46 public void setText(String text) {
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47 // TODO Auto-generated method stub
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48
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49 }
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50
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51 public int first() {
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52 // TODO Auto-generated method stub
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53 return 0;
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54 }
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55
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56 public int next() {
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57 // TODO Auto-generated method stub
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58 return 0;
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59 }
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60
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61 }
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62 private String colorId;
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63
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64 private String fontId;
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65
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66 private String text;
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67
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68 protected bool underline;
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69
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70 private bool wrapAllowed = true;
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71
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72 protected ArraySeq!(Object) areaRectangles;
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73
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74 private TextFragment[] textFragments;
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75
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76 class AreaRectangle {
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77 Rectangle rect;
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78
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79 int from, to;
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80
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81 public this(Rectangle rect, int from, int to) {
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82 this.rect = rect;
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83 this.from = from;
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84 this.to = to;
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85 }
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86
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87 public bool contains(int x, int y) {
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88 return rect.contains(x, y);
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89 }
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90
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91 public bool intersects(Rectangle region) {
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92 return rect.intersects(region);
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93 }
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94
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95 public String getText() {
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96 if (from is 0 && to is -1)
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97 return this.outer.getText();
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98 if (from > 0 && to is -1)
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99 return this.outer.getText().substring(from);
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100 return this.outer.getText().substring(from, to);
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101 }
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102 }
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103
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104 static class SelectionRange {
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105 public int start;
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106
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107 public int stop;
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108
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109 public this() {
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110 reset();
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111 }
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112
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113 public void reset() {
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114 start = -1;
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115 stop = -1;
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116 }
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117 }
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118
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119 static class TextFragment {
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120 short index;
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121
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122 short length;
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123
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124 public this(short index, short length) {
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125 this.index = index;
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126 this.length = length;
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127 }
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128 }
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129
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130 public this(String text, String fontId) {
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131 this(text, fontId, null, true);
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132 }
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133
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134 public this(String text, String fontId, String colorId) {
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135 this(text, fontId, colorId, true);
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136 }
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137
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138 public this(String text, String fontId, String colorId, bool wrapAllowed) {
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139 areaRectangles = new ArraySeq!(Object);
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140 this.text = cleanup(text);
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141 this.fontId = fontId;
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142 this.colorId = colorId;
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143 this.wrapAllowed = wrapAllowed;
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144 }
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145
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146 private String cleanup(String text) {
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147 StringBuffer buf = new StringBuffer();
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148 for (int i = 0; i < text.length(); i++) {
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149 char c = text.charAt(i);
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150 if (c is '\n' || c is '\r' || c is '\f') {
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151 if (i > 0)
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152 buf.append(' ');
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153 } else
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154 buf.append(c);
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155 }
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156 return buf.toString();
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157 }
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158
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159 public void setWordWrapAllowed(bool value) {
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160 wrapAllowed = value;
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161 }
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162
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163 public bool isWordWrapAllowed() {
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164 return wrapAllowed;
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165 }
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166
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167 public bool isSelectable() {
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168 return false;
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169 }
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170
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171 public String getColorId() {
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172 return colorId;
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173 }
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174
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175 public String getText() {
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176 return text;
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177 }
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178
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179 void setText(String text) {
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180 this.text = cleanup(text);
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181 textFragments = null;
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182 }
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183
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184 void setColorId(String colorId) {
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185 this.colorId = colorId;
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186 }
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187
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188 void setFontId(String fontId) {
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189 this.fontId = fontId;
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190 textFragments = null;
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191 }
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192
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193 public bool contains(int x, int y) {
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194 for (int i = 0; i < areaRectangles.size(); i++) {
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195 AreaRectangle ar = cast(AreaRectangle) areaRectangles.get(i);
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196 if (ar.contains(x, y))
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197 return true;
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198 if (i<areaRectangles.size()-1) {
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199 // test the gap
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200 Rectangle top = ar.rect;
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201 Rectangle bot = (cast(AreaRectangle)areaRectangles.get(i+1)).rect;
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202 if (y >= top.y+top.height && y < bot.y) {
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203 // in the gap
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204 int left = Math.max(top.x, bot.x);
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205 int right = Math.min(top.x+top.width, bot.x+bot.width);
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206 if (x>=left && x<=right) {
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207 return true;
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208 }
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209 }
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210 }
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211 }
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212 return false;
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213 }
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214
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215 public bool intersects(Rectangle rect) {
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216 for (int i = 0; i < areaRectangles.size(); i++) {
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217 AreaRectangle ar = cast(AreaRectangle) areaRectangles.get(i);
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218 if (ar.intersects(rect))
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219 return true;
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220 if (i<areaRectangles.size()-1) {
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221 // test the gap
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222 Rectangle top = ar.rect;
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223 Rectangle bot = (cast(AreaRectangle)areaRectangles.get(i+1)).rect;
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224 if (top.y+top.height < bot.y) {
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225 int y = top.y+top.height;
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226 int height = bot.y-y;
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227 int left = Math.max(top.x, bot.x);
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228 int right = Math.min(top.x+top.width, bot.x+bot.width);
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229 Rectangle gap = new Rectangle(left, y, right-left, height);
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230 if (gap.intersects(rect))
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231 return true;
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232 }
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233 }
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234 }
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235 return false;
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236 }
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237
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238 public Rectangle getBounds() {
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239 int x = 0, y = 0;
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240 int width = 0, height = 0;
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241
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242 for (int i = 0; i < areaRectangles.size(); i++) {
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243 AreaRectangle ar = cast(AreaRectangle) areaRectangles.get(i);
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244 if (i is 0) {
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245 x = ar.rect.x;
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246 y = ar.rect.y;
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247 } else
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248 x = Math.min(ar.rect.x, x);
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249 width = Math.max(ar.rect.width, width);
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250 height += ar.rect.height;
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251 }
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252 return new Rectangle(x, y, width, height);
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253 }
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254
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255 public bool advanceLocator(GC gc, int wHint, Locator locator,
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256 Hashtable objectTable, bool computeHeightOnly) {
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257 Font oldFont = null;
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258 if (fontId !is null) {
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259 oldFont = gc.getFont();
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260 Font newFont = cast(Font) objectTable.get(fontId);
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261 if (newFont !is null)
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262 gc.setFont(newFont);
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263 }
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264 FontMetrics fm = gc.getFontMetrics();
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265 int lineHeight = fm.getHeight();
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266 bool newLine = false;
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267
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268 if (wHint is DWT.DEFAULT || !wrapAllowed) {
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269 Point extent = gc.textExtent(text);
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270 int totalExtent = locator.x+extent.x;
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271 if (isSelectable())
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272 totalExtent+=1;
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273
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274 if (wHint !is DWT.DEFAULT && totalExtent > wHint) {
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275 // new line
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276 locator.x = locator.indent;
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277 locator.y += locator.rowHeight;
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278 if (computeHeightOnly)
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279 locator.collectHeights();
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280 locator.rowHeight = 0;
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281 locator.leading = 0;
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282 newLine = true;
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283 }
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284 int width = extent.x;
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285 if (isSelectable())
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286 width += 1;
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287 locator.x += width;
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288 locator.width = locator.indent + width;
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289 locator.rowHeight = Math.max(locator.rowHeight, extent.y);
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290 locator.leading = Math.max(locator.leading, fm.getLeading());
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291 return newLine;
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292 }
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293
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294 computeTextFragments(gc);
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295
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296 int width = 0;
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297 Point lineExtent = new Point(0, 0);
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298
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299 for (int i = 0; i < textFragments.length; i++) {
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300 TextFragment textFragment = textFragments[i];
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301 int currentExtent = locator.x + lineExtent.x;
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302
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303 if (isSelectable())
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304 currentExtent += 1;
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305
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306 if (i !is 0 && currentExtent + textFragment.length > wHint) {
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307 // overflow
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308 int lineWidth = currentExtent;
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309 locator.rowHeight = Math.max(locator.rowHeight, lineExtent.y);
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310 locator.leading = Math.max(locator.leading, fm.getLeading());
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311 if (computeHeightOnly)
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312 locator.collectHeights();
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313 locator.x = locator.indent;
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314 locator.y += locator.rowHeight;
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315 locator.rowHeight = 0;
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316 locator.leading = 0;
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317 lineExtent.x = 0;
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318 lineExtent.y = 0;
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319 width = Math.max(width, lineWidth);
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320 newLine = true;
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321 }
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322 lineExtent.x += textFragment.length;
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323 lineExtent.y = Math.max(lineHeight, lineExtent.y);
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324 }
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325 int lineWidth = lineExtent.x;
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326 if (isSelectable())
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327 lineWidth += 1;
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328 locator.x += lineWidth;
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329 locator.width = width;
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330 locator.rowHeight = Math.max(locator.rowHeight, lineExtent.y);
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331 locator.leading = Math.max(locator.leading, fm.getLeading());
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332 if (oldFont !is null) {
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333 gc.setFont(oldFont);
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334 }
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335 return newLine;
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336 }
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337
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338 /**
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339 * @param gc
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340 * @param width
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341 * @param locator
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342 * @param selected
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343 * @param selData
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344 * @param color
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345 * @param fm
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346 * @param lineHeight
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347 * @param descent
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348 */
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349 private void layoutWithoutWrapping(GC gc, int width, Locator locator,
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350 bool selected, FontMetrics fm, int lineHeight, int descent) {
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351 Point extent = gc.textExtent(text);
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352 int ewidth = extent.x;
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353 if (isSelectable())
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354 ewidth += 1;
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355 if (locator.x + ewidth > width-locator.marginWidth) {
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356 // new line
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357 locator.resetCaret();
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358 locator.y += locator.rowHeight;
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359 locator.rowHeight = 0;
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360 locator.rowCounter++;
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361 }
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362 int ly = locator.getBaseline(fm.getHeight() - fm.getLeading());
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363 //int lineY = ly + lineHeight - descent + 1;
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364 Rectangle br = new Rectangle(locator.x, ly, ewidth,
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365 lineHeight - descent + 3);
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366 areaRectangles.add(new AreaRectangle(br, 0, -1));
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367 locator.x += ewidth;
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368 locator.width = ewidth;
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369 locator.rowHeight = Math.max(locator.rowHeight, extent.y);
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370 }
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371
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372 protected int convertOffsetToStringIndex(GC gc, String s, int x,
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373 int swidth, int selOffset) {
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374 int index = s.length();
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375 while (index > 0 && x + swidth > selOffset) {
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376 index--;
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377 String ss = s.substring(0, index);
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378 swidth = gc.textExtent(ss).x;
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379 }
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380 return index;
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381 }
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382
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383 public void paintFocus(GC gc, Color bg, Color fg, bool selected,
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384 Rectangle repaintRegion) {
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385 if (areaRectangles is null)
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386 return;
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387 for (int i = 0; i < areaRectangles.size(); i++) {
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388 AreaRectangle areaRectangle = cast(AreaRectangle) areaRectangles.get(i);
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389 Rectangle br = areaRectangle.rect;
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390 int bx = br.x;
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391 int by = br.y;
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392 if (repaintRegion !is null) {
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393 bx -= repaintRegion.x;
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394 by -= repaintRegion.y;
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395 }
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396 if (selected) {
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397 gc.setBackground(bg);
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398 gc.setForeground(fg);
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399 gc.drawFocus(bx, by, br.width, br.height);
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400 } else {
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401 gc.setForeground(bg);
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402 gc.drawRectangle(bx, by, br.width - 1, br.height - 1);
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403 }
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404 }
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405 }
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406
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407 public void paint(GC gc, bool hover, Hashtable resourceTable,
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408 bool selected, SelectionData selData, Rectangle repaintRegion) {
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409 this.paint(gc, hover, resourceTable, selected, false, selData,
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410 repaintRegion);
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411 }
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412
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413 protected void paint(GC gc, bool hover, Hashtable resourceTable,
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414 bool selected, bool rollover, SelectionData selData,
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415 Rectangle repaintRegion) {
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416 Font oldFont = null;
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417 Color oldColor = null;
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418 Color oldBg = null;
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419
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420 // apply segment-specific font, color and background
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421 if (fontId !is null) {
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422 oldFont = gc.getFont();
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423 Font newFont = cast(Font) resourceTable.get(fontId);
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424 if (newFont !is null)
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425 gc.setFont(newFont);
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426 }
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427 if (!hover && colorId !is null) {
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428 oldColor = gc.getForeground();
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429 Color newColor = cast(Color) resourceTable.get(colorId);
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430 if (newColor !is null)
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431 gc.setForeground(newColor);
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432 }
|
|
|
433 oldBg = gc.getBackground();
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|
|
434
|
|
|
435 FontMetrics fm = gc.getFontMetrics();
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|
|
436 int lineHeight = fm.getHeight();
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|
|
437 int descent = fm.getDescent();
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|
|
438
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|
439 // paint area rectangles of the segment
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440 for (int i = 0; i < areaRectangles.size(); i++) {
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|
|
441 AreaRectangle areaRectangle = cast(AreaRectangle) areaRectangles.get(i);
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|
|
442 Rectangle rect = areaRectangle.rect;
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|
|
443 String text = areaRectangle.getText();
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|
|
444 Point extent = gc.textExtent(text);
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|
|
445 int textX = rect.x + (isSelectable()?1:0);
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|
|
446 int lineY = rect.y + lineHeight - descent + 1;
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|
|
447 paintString(gc, text, extent.x, textX, rect.y, lineY, selData,
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|
|
448 rect, hover, rollover, repaintRegion);
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|
|
449 if (selected) {
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|
|
450 int fx = rect.x;
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|
|
451 int fy = rect.y;
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|
|
452 if (repaintRegion !is null) {
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453 fx -= repaintRegion.x;
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454 fy -= repaintRegion.y;
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|
|
455 }
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|
456 //To avoid partially cancelling the focus by painting over
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|
|
457 //X-ORed pixels, first cancel it yourself
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|
|
458 Color fg = gc.getForeground();
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|
|
459 gc.setForeground(oldBg);
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|
|
460 gc.drawRectangle(fx, fy, rect.width - 1, rect.height - 1);
|
|
|
461 gc.setForeground(fg);
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|
|
462 gc.drawFocus(fx, fy, rect.width, rect.height);
|
|
|
463 }
|
|
|
464 }
|
|
|
465 // restore GC resources
|
|
|
466 if (oldFont !is null) {
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|
|
467 gc.setFont(oldFont);
|
|
|
468 }
|
|
|
469 if (oldColor !is null) {
|
|
|
470 gc.setForeground(oldColor);
|
|
|
471 }
|
|
|
472 if (oldBg !is null) {
|
|
|
473 gc.setBackground(oldBg);
|
|
|
474 }
|
|
|
475 }
|
|
|
476
|
|
|
477 public void computeSelection(GC gc, Hashtable resourceTable, SelectionData selData) {
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|
|
478 Font oldFont = null;
|
|
|
479
|
|
|
480 if (fontId !is null) {
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|
|
481 oldFont = gc.getFont();
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|
|
482 Font newFont = cast(Font) resourceTable.get(fontId);
|
|
|
483 if (newFont !is null)
|
|
|
484 gc.setFont(newFont);
|
|
|
485 }
|
|
|
486
|
|
|
487 for (int i = 0; i < areaRectangles.size(); i++) {
|
|
|
488 AreaRectangle areaRectangle = cast(AreaRectangle) areaRectangles.get(i);
|
|
|
489 Rectangle rect = areaRectangle.rect;
|
|
|
490 String text = areaRectangle.getText();
|
|
|
491 Point extent = gc.textExtent(text);
|
|
|
492 computeSelection(gc, text, extent.x, selData,
|
|
|
493 rect);
|
|
|
494 }
|
|
|
495 // restore GC resources
|
|
|
496 if (oldFont !is null) {
|
|
|
497 gc.setFont(oldFont);
|
|
|
498 }
|
|
|
499 }
|
|
|
500
|
|
|
501 private void paintString(GC gc, String s, int swidth, int x, int y,
|
|
|
502 int lineY, SelectionData selData, Rectangle bounds, bool hover,
|
|
|
503 bool rolloverMode, Rectangle repaintRegion) {
|
|
|
504 // repaints one area rectangle
|
|
|
505 if (selData !is null && selData.isEnclosed()) {
|
|
|
506 Color savedBg = gc.getBackground();
|
|
|
507 Color savedFg = gc.getForeground();
|
|
|
508 int leftOffset = selData.getLeftOffset(bounds.height);
|
|
|
509 int rightOffset = selData.getRightOffset(bounds.height);
|
|
|
510 bool firstRow = selData.isFirstSelectionRow(bounds.y,
|
|
|
511 bounds.height);
|
|
|
512 bool lastRow = selData.isLastSelectionRow(bounds.y,
|
|
|
513 bounds.height);
|
|
|
514 bool selectedRow = selData
|
|
|
515 .isSelectedRow(bounds.y, bounds.height);
|
|
|
516
|
|
|
517 int sstart = -1;
|
|
|
518 int sstop = -1;
|
|
|
519
|
|
|
520 if ((firstRow && x + swidth < leftOffset)
|
|
|
521 || (lastRow && x > rightOffset)) {
|
|
|
522 paintStringSegment(gc, s, gc.textExtent(s).x, x, y, lineY,
|
|
|
523 hover, rolloverMode, repaintRegion);
|
|
|
524 return;
|
|
|
525 }
|
|
|
526
|
|
|
527 if (firstRow && bounds.x + swidth > leftOffset) {
|
|
|
528 sstart = convertOffsetToStringIndex(gc, s, bounds.x, swidth,
|
|
|
529 leftOffset);
|
|
|
530 }
|
|
|
531 if (lastRow && bounds.x + swidth > rightOffset) {
|
|
|
532 sstop = convertOffsetToStringIndex(gc, s, bounds.x, swidth,
|
|
|
533 rightOffset);
|
|
|
534 }
|
|
|
535
|
|
|
536 if (firstRow && sstart !is -1) {
|
|
|
537 String left = s.substring(0, sstart);
|
|
|
538 int width = gc.textExtent(left).x;
|
|
|
539 paintStringSegment(gc, left, width, x, y, lineY, hover,
|
|
|
540 rolloverMode, repaintRegion);
|
|
|
541 x += width;
|
|
|
542 }
|
|
|
543 if (selectedRow) {
|
|
|
544 int lindex = sstart !is -1 ? sstart : 0;
|
|
|
545 int rindex = sstop !is -1 ? sstop : s.length();
|
|
|
546 String mid = s.substring(lindex, rindex);
|
|
|
547 Point extent = gc.textExtent(mid);
|
|
|
548 gc.setForeground(selData.fg);
|
|
|
549 gc.setBackground(selData.bg);
|
|
|
550 gc.fillRectangle(x, y, extent.x, extent.y);
|
|
|
551 paintStringSegment(gc, mid, extent.x, x, y, lineY, hover,
|
|
|
552 rolloverMode, repaintRegion);
|
|
|
553 x += extent.x;
|
|
|
554 gc.setForeground(savedFg);
|
|
|
555 gc.setBackground(savedBg);
|
|
|
556 } else {
|
|
|
557 paintStringSegment(gc, s, gc.textExtent(s).x, x, y, lineY,
|
|
|
558 hover, rolloverMode, repaintRegion);
|
|
|
559 }
|
|
|
560 if (lastRow && sstop !is -1) {
|
|
|
561 String right = s.substring(sstop);
|
|
|
562 paintStringSegment(gc, right, gc.textExtent(right).x, x, y,
|
|
|
563 lineY, hover, rolloverMode, repaintRegion);
|
|
|
564 }
|
|
|
565 } else {
|
|
|
566 paintStringSegment(gc, s, gc.textExtent(s).x, x, y, lineY, hover,
|
|
|
567 rolloverMode, repaintRegion);
|
|
|
568 }
|
|
|
569 }
|
|
|
570
|
|
|
571 private void computeSelection(GC gc, String s, int swidth, SelectionData selData, Rectangle bounds) {
|
|
|
572 int leftOffset = selData.getLeftOffset(bounds.height);
|
|
|
573 int rightOffset = selData.getRightOffset(bounds.height);
|
|
|
574 bool firstRow = selData.isFirstSelectionRow(bounds.y, bounds.height);
|
|
|
575 bool lastRow = selData.isLastSelectionRow(bounds.y, bounds.height);
|
|
|
576 bool selectedRow = selData.isSelectedRow(bounds.y, bounds.height);
|
|
|
577
|
|
|
578 int sstart = -1;
|
|
|
579 int sstop = -1;
|
|
|
580
|
|
|
581 if (firstRow && bounds.x + swidth > leftOffset) {
|
|
|
582 sstart = convertOffsetToStringIndex(gc, s, bounds.x, swidth,
|
|
|
583 leftOffset);
|
|
|
584 }
|
|
|
585 if (lastRow && bounds.x + swidth > rightOffset) {
|
|
|
586 sstop = convertOffsetToStringIndex(gc, s, bounds.x, swidth,
|
|
|
587 rightOffset);
|
|
|
588 }
|
|
|
589
|
|
|
590 if (selectedRow) {
|
|
|
591 int lindex = sstart !is -1 ? sstart : 0;
|
|
|
592 int rindex = sstop !is -1 ? sstop : s.length();
|
|
|
593 String mid = s.substring(lindex, rindex);
|
|
|
594 selData.addSegment(mid);
|
|
|
595 }
|
|
|
596 }
|
|
|
597
|
|
|
598 /**
|
|
|
599 * @param gc
|
|
|
600 * @param s
|
|
|
601 * @param x
|
|
|
602 * @param y
|
|
|
603 * @param lineY
|
|
|
604 * @param hover
|
|
|
605 * @param rolloverMode
|
|
|
606 */
|
|
|
607 private void paintStringSegment(GC gc, String s, int swidth, int x, int y,
|
|
|
608 int lineY, bool hover, bool rolloverMode,
|
|
|
609 Rectangle repaintRegion) {
|
|
|
610 bool reverse = false;
|
|
|
611 int clipX = x;
|
|
|
612 int clipY = y;
|
|
|
613 int clipLineY = lineY;
|
|
|
614 if (repaintRegion !is null) {
|
|
|
615 clipX -= repaintRegion.x;
|
|
|
616 clipY -= repaintRegion.y;
|
|
|
617 clipLineY -= repaintRegion.y;
|
|
|
618 }
|
|
|
619 if (underline || hover || rolloverMode) {
|
|
|
620 if (rolloverMode && !hover)
|
|
|
621 reverse = true;
|
|
|
622 }
|
|
|
623 if (reverse) {
|
|
|
624 drawUnderline(gc, swidth, clipX, clipLineY, hover, rolloverMode);
|
|
|
625 gc.drawString(s, clipX, clipY, false);
|
|
|
626 } else {
|
|
|
627 gc.drawString(s, clipX, clipY, false);
|
|
|
628 drawUnderline(gc, swidth, clipX, clipLineY, hover, rolloverMode);
|
|
|
629 }
|
|
|
630 }
|
|
|
631
|
|
|
632 private void drawUnderline(GC gc, int swidth, int x, int y, bool hover,
|
|
|
633 bool rolloverMode) {
|
|
|
634 if (underline || hover || rolloverMode) {
|
|
|
635 Color saved = null;
|
|
|
636 if (rolloverMode && !hover) {
|
|
|
637 saved = gc.getForeground();
|
|
|
638 gc.setForeground(gc.getBackground());
|
|
|
639 }
|
|
|
640 gc.drawLine(x, y, x + swidth-1, y);
|
|
|
641 if (saved !is null)
|
|
|
642 gc.setForeground(saved);
|
|
|
643 }
|
|
|
644 }
|
|
|
645
|
|
|
646 /*
|
|
|
647 * (non-Javadoc)
|
|
|
648 *
|
|
|
649 * @see dwtx.ui.internal.forms.widgets.ParagraphSegment#layout(dwt.graphics.GC,
|
|
|
650 * int, dwtx.ui.internal.forms.widgets.Locator,
|
|
|
651 * java.util.Hashtable, bool,
|
|
|
652 * dwtx.ui.internal.forms.widgets.SelectionData)
|
|
|
653 */
|
|
|
654 public void layout(GC gc, int width, Locator locator,
|
|
|
655 Hashtable resourceTable, bool selected) {
|
|
|
656 Font oldFont = null;
|
|
|
657
|
|
|
658 areaRectangles.clear();
|
|
|
659
|
|
|
660 if (fontId !is null) {
|
|
|
661 oldFont = gc.getFont();
|
|
|
662 Font newFont = cast(Font) resourceTable.get(fontId);
|
|
|
663 if (newFont !is null)
|
|
|
664 gc.setFont(newFont);
|
|
|
665 }
|
|
|
666 FontMetrics fm = gc.getFontMetrics();
|
|
|
667 int lineHeight = fm.getHeight();
|
|
|
668 int descent = fm.getDescent();
|
|
|
669
|
|
|
670 if (!wrapAllowed) {
|
|
|
671 layoutWithoutWrapping(gc, width, locator, selected, fm, lineHeight,
|
|
|
672 descent);
|
|
|
673 } else {
|
|
|
674 int lineStart = 0;
|
|
|
675 int lastLoc = 0;
|
|
|
676 Point lineExtent = new Point(0, 0);
|
|
|
677 computeTextFragments(gc);
|
|
|
678 int rightEdge = width-locator.marginWidth;
|
|
|
679 for (int i = 0; i < textFragments.length; i++) {
|
|
|
680 TextFragment fragment = textFragments[i];
|
|
|
681 int breakLoc = fragment.index;
|
|
|
682 if (breakLoc is 0)
|
|
|
683 continue;
|
|
|
684 if (i !is 0 && locator.x + lineExtent.x + fragment.length > rightEdge) {
|
|
|
685 // overflow
|
|
|
686 int lineWidth = locator.x + lineExtent.x;
|
|
|
687 if (isSelectable())
|
|
|
688 lineWidth += 1;
|
|
|
689 int ly = locator.getBaseline(lineHeight - fm.getLeading());
|
|
|
690 Rectangle br = new Rectangle(isSelectable()?
|
|
|
691 locator.x - 1:locator.x, ly,
|
|
|
692 isSelectable()?lineExtent.x + 1:lineExtent.x, lineHeight - descent + 3);
|
|
|
693 areaRectangles
|
|
|
694 .add(new AreaRectangle(br, lineStart, lastLoc));
|
|
|
695
|
|
|
696 locator.rowHeight = Math.max(locator.rowHeight,
|
|
|
697 lineExtent.y);
|
|
|
698 locator.resetCaret();
|
|
|
699 if (isSelectable())
|
|
|
700 locator.x += 1;
|
|
|
701 locator.y += locator.rowHeight;
|
|
|
702 locator.rowCounter++;
|
|
|
703 locator.rowHeight = 0;
|
|
|
704 lineStart = lastLoc;
|
|
|
705 lineExtent.x = 0;
|
|
|
706 lineExtent.y = 0;
|
|
|
707 }
|
|
|
708 lastLoc = breakLoc;
|
|
|
709 lineExtent.x += fragment.length;
|
|
|
710 lineExtent.y = Math.max(lineHeight, lineExtent.y);
|
|
|
711 }
|
|
|
712 //String lastLine = text.substring(lineStart, lastLoc);
|
|
|
713 int ly = locator.getBaseline(lineHeight - fm.getLeading());
|
|
|
714 int lastWidth = lineExtent.x;
|
|
|
715 if (isSelectable())
|
|
|
716 lastWidth += 1;
|
|
|
717 Rectangle br = new Rectangle(isSelectable()?locator.x - 1:locator.x, ly,
|
|
|
718 isSelectable()?lineExtent.x + 1:lineExtent.x,
|
|
|
719 lineHeight - descent + 3);
|
|
|
720 //int lineY = ly + lineHeight - descent + 1;
|
|
|
721 areaRectangles.add(new AreaRectangle(br, lineStart, lastLoc));
|
|
|
722 locator.x += lastWidth;
|
|
|
723 locator.rowHeight = Math.max(locator.rowHeight, lineExtent.y);
|
|
|
724 }
|
|
|
725 if (oldFont !is null) {
|
|
|
726 gc.setFont(oldFont);
|
|
|
727 }
|
|
|
728 }
|
|
|
729
|
|
|
730 private void computeTextFragments(GC gc) {
|
|
|
731 if (textFragments !is null)
|
|
|
732 return;
|
|
|
733 ArrayList list = new ArrayList();
|
|
|
734 BreakIterator wb = BreakIterator.getLineInstance();
|
|
|
735 wb.setText(getText());
|
|
|
736 int cursor = 0;
|
|
|
737 for (int loc = wb.first(); loc !is BreakIterator.DONE; loc = wb.next()) {
|
|
|
738 if (loc is 0)
|
|
|
739 continue;
|
|
|
740 String word = text.substring(cursor, loc);
|
|
|
741 Point extent = gc.textExtent(word);
|
|
|
742 list.add(new TextFragment(cast(short) loc, cast(short) extent.x));
|
|
|
743 cursor = loc;
|
|
|
744 }
|
|
|
745 textFragments = cast(TextFragment[]) list.toArray(new TextFragment[list
|
|
|
746 .size()]);
|
|
|
747 }
|
|
|
748
|
|
|
749 public void clearCache(String fontId) {
|
|
|
750 if (fontIdisnull && (this.fontId is null||this.fontId.equals(FormTextModel.BOLD_FONT_ID)))
|
|
|
751 textFragments = null;
|
|
|
752 else if (fontId !is null && this.fontId !is null && fontId.equals(this.fontId))
|
|
|
753 textFragments = null;
|
|
|
754 }
|
|
|
755 }
|
