Mercurial > projects > dwt-addons
annotate dwtx/ui/internal/forms/widgets/Paragraph.d @ 104:04b47443bb01
Reworked the collection uses to make use of a wrapper collection that is compatible to the Java Collections.
These new wrappers now use the tango.util.containers instead of the tango.util.collections.
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Thu, 07 Aug 2008 15:01:33 +0200 |
| parents | 1088ca33d3e0 |
| children |
| rev | line source |
|---|---|
| 75 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2007 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwtx.ui.internal.forms.widgets.Paragraph; | |
| 14 | |
| 15 import dwtx.ui.internal.forms.widgets.ParagraphSegment; | |
| 16 import dwtx.ui.internal.forms.widgets.Locator; | |
| 17 import dwtx.ui.internal.forms.widgets.IHyperlinkSegment; | |
| 18 import dwtx.ui.internal.forms.widgets.SelectionData; | |
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19 import dwtx.ui.internal.forms.widgets.TextSegment; |
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20 import dwtx.ui.internal.forms.widgets.TextHyperlinkSegment; |
| 75 | 21 |
| 22 import dwt.graphics.GC; | |
| 23 import dwt.graphics.Rectangle; | |
| 24 import dwtx.ui.forms.HyperlinkSettings; | |
| 25 | |
| 26 import dwt.dwthelper.utils; | |
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27 import dwtx.dwtxhelper.Collection; |
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28 import tango.io.model.IFile; |
| 94 | 29 |
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30 import tango.text.Text; |
| 75 | 31 |
| 32 /** | |
| 33 * @version 1.0 | |
| 34 * @author | |
| 35 */ | |
| 36 public class Paragraph { | |
| 37 public static const String HTTP = "http://"; //$NON-NLS-1$ | |
| 38 | |
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39 private Vector segments; |
| 75 | 40 |
| 41 private bool addVerticalSpace = true; | |
| 42 | |
| 43 public this(bool addVerticalSpace) { | |
| 44 this.addVerticalSpace = addVerticalSpace; | |
| 45 } | |
| 46 | |
| 47 public int getIndent() { | |
| 48 return 0; | |
| 49 } | |
| 50 | |
| 51 public bool getAddVerticalSpace() { | |
| 52 return addVerticalSpace; | |
| 53 } | |
| 54 | |
| 55 /* | |
| 56 * @see IParagraph#getSegments() | |
| 57 */ | |
| 58 public ParagraphSegment[] getSegments() { | |
| 59 if (segments is null) | |
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60 return null; |
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61 return arraycast!(ParagraphSegment)(segments |
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62 .toArray()); |
| 75 | 63 } |
| 64 | |
| 65 public void addSegment(ParagraphSegment segment) { | |
| 66 if (segments is null) | |
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67 segments = new Vector; |
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parents:
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68 segments.add(segment); |
| 75 | 69 } |
| 70 | |
| 71 public void parseRegularText(String text, bool expandURLs, bool wrapAllowed, | |
| 72 HyperlinkSettings settings, String fontId) { | |
| 73 parseRegularText(text, expandURLs, wrapAllowed, settings, fontId, null); | |
| 74 } | |
| 75 | |
| 76 public void parseRegularText(String text, bool expandURLs, bool wrapAllowed, | |
| 77 HyperlinkSettings settings, String fontId, String colorId) { | |
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78 if (text.length is 0) |
| 75 | 79 return; |
| 80 if (expandURLs) { | |
| 81 int loc = text.indexOf(HTTP); | |
| 82 | |
| 83 if (loc is -1) | |
| 84 addSegment(new TextSegment(text, fontId, colorId, wrapAllowed)); | |
| 85 else { | |
| 86 int textLoc = 0; | |
| 87 while (loc !is -1) { | |
| 88 addSegment(new TextSegment(text.substring(textLoc, loc), | |
| 89 fontId, colorId, wrapAllowed)); | |
| 90 bool added = false; | |
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91 for (textLoc = loc; textLoc < text.length; textLoc++) { |
| 75 | 92 char c = text.charAt(textLoc); |
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93 if (CharacterIsWhitespace(c)) { |
| 75 | 94 addHyperlinkSegment(text.substring(loc, textLoc), |
| 95 settings, fontId); | |
| 96 added = true; | |
| 97 break; | |
| 98 } | |
| 99 } | |
| 100 if (!added) { | |
| 101 // there was no space - just end of text | |
| 102 addHyperlinkSegment(text.substring(loc), settings, | |
| 103 fontId); | |
| 104 break; | |
| 105 } | |
| 106 loc = text.indexOf(HTTP, textLoc); | |
| 107 } | |
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108 if (textLoc < text.length) { |
| 75 | 109 addSegment(new TextSegment(text.substring(textLoc), fontId, |
| 110 colorId, wrapAllowed)); | |
| 111 } | |
| 112 } | |
| 113 } else { | |
| 114 addSegment(new TextSegment(text, fontId, colorId, wrapAllowed)); | |
| 115 } | |
| 116 } | |
| 117 | |
| 118 private void addHyperlinkSegment(String text, HyperlinkSettings settings, | |
| 119 String fontId) { | |
| 120 TextHyperlinkSegment hs = new TextHyperlinkSegment(text, settings, | |
| 121 fontId); | |
| 122 hs.setWordWrapAllowed(false); | |
| 123 hs.setHref(text); | |
| 124 addSegment(hs); | |
| 125 } | |
| 126 | |
| 127 protected void computeRowHeights(GC gc, int width, Locator loc, | |
| 128 int lineHeight, Hashtable resourceTable) { | |
| 129 ParagraphSegment[] segments = getSegments(); | |
| 130 // compute heights | |
| 131 Locator hloc = loc.create(); | |
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parents:
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diff
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132 ArrayList heights = new ArrayList(); |
| 75 | 133 hloc.heights = heights; |
| 134 hloc.rowCounter = 0; | |
| 135 int innerWidth = width - loc.marginWidth*2; | |
| 136 for (int j = 0; j < segments.length; j++) { | |
| 137 ParagraphSegment segment = segments[j]; | |
| 138 segment.advanceLocator(gc, innerWidth, hloc, resourceTable, true); | |
| 139 } | |
| 140 hloc.collectHeights(); | |
| 141 loc.heights = heights; | |
| 142 loc.rowCounter = 0; | |
| 143 } | |
| 144 | |
| 145 public void layout(GC gc, int width, Locator loc, int lineHeight, | |
| 146 Hashtable resourceTable, IHyperlinkSegment selectedLink) { | |
| 147 ParagraphSegment[] segments = getSegments(); | |
| 148 //int height; | |
| 149 if (segments.length > 0) { | |
| 150 /* | |
| 151 if (segments[0] instanceof TextSegment | |
| 152 && ((TextSegment) segments[0]).isSelectable()) | |
| 153 loc.x += 1; | |
| 154 */ | |
| 155 // compute heights | |
| 156 if (loc.heights is null) | |
| 157 computeRowHeights(gc, width, loc, lineHeight, resourceTable); | |
| 158 for (int j = 0; j < segments.length; j++) { | |
| 159 ParagraphSegment segment = segments[j]; | |
| 160 bool doSelect = false; | |
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161 if (selectedLink !is null && segment.opEquals(cast(Object)selectedLink)) |
| 75 | 162 doSelect = true; |
| 163 segment.layout(gc, width, loc, resourceTable, doSelect); | |
| 164 } | |
| 165 loc.heights = null; | |
| 166 loc.y += loc.rowHeight; | |
| 167 } else { | |
| 168 loc.y += lineHeight; | |
| 169 } | |
| 170 } | |
| 171 | |
| 172 public void paint(GC gc, Rectangle repaintRegion, | |
| 173 Hashtable resourceTable, IHyperlinkSegment selectedLink, | |
| 174 SelectionData selData) { | |
| 175 ParagraphSegment[] segments = getSegments(); | |
| 176 | |
| 177 for (int i = 0; i < segments.length; i++) { | |
| 178 ParagraphSegment segment = segments[i]; | |
| 179 if (!segment.intersects(repaintRegion)) | |
| 180 continue; | |
| 181 bool doSelect = false; | |
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182 if (selectedLink !is null && segment.opEquals(cast(Object)selectedLink)) |
| 75 | 183 doSelect = true; |
| 184 segment.paint(gc, false, resourceTable, doSelect, selData, repaintRegion); | |
| 185 } | |
| 186 } | |
| 187 | |
| 188 public void computeSelection(GC gc, Hashtable resourceTable, IHyperlinkSegment selectedLink, | |
| 189 SelectionData selData) { | |
| 190 ParagraphSegment[] segments = getSegments(); | |
| 191 | |
| 192 for (int i = 0; i < segments.length; i++) { | |
| 193 ParagraphSegment segment = segments[i]; | |
| 194 //bool doSelect = false; | |
| 195 //if (selectedLink !is null && segment.equals(selectedLink)) | |
| 196 //doSelect = true; | |
| 197 segment.computeSelection(gc, resourceTable, selData); | |
| 198 } | |
| 199 } | |
| 200 | |
| 201 public String getAccessibleText() { | |
| 202 ParagraphSegment[] segments = getSegments(); | |
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203 auto txt = new tango.text.Text.Text!(char); |
| 75 | 204 for (int i = 0; i < segments.length; i++) { |
| 205 ParagraphSegment segment = segments[i]; | |
| 206 if ( auto ts = cast(TextSegment)segment ) { | |
| 207 String text = ts.getText(); | |
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208 txt.append(text); |
| 75 | 209 } |
| 210 } | |
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211 txt.append( FileConst.NewlineString ); |
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212 return txt.toString(); |
| 75 | 213 } |
| 214 | |
| 215 public ParagraphSegment findSegmentAt(int x, int y) { | |
| 216 if (segments !is null) { | |
| 217 for (int i = 0; i < segments.size(); i++) { | |
| 218 ParagraphSegment segment = cast(ParagraphSegment) segments.get(i); | |
| 219 if (segment.contains(x, y)) | |
| 220 return segment; | |
| 221 } | |
| 222 } | |
| 223 return null; | |
| 224 } | |
| 225 public void clearCache(String fontId) { | |
| 226 if (segments !is null) { | |
| 227 for (int i = 0; i < segments.size(); i++) { | |
| 228 ParagraphSegment segment = cast(ParagraphSegment) segments.get(i); | |
| 229 segment.clearCache(fontId); | |
| 230 } | |
| 231 } | |
| 232 } | |
| 233 } |