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comparison dwtx/ui/internal/forms/widgets/FormUtil.d @ 90:7ffeace6c47f

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Update 3.4M7 to 3.4
author Frank Benoit <benoit@tionex.de>
date Sun, 06 Jul 2008 23:30:07 +0200
parents 4ac9946b9fb5
children 11e8159caf7a
comparison
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89:040da1cb0d76 90:7ffeace6c47f
11 * Port to the D programming language: 11 * Port to the D programming language:
12 * Frank Benoit <benoit@tionex.de> 12 * Frank Benoit <benoit@tionex.de>
13 *******************************************************************************/ 13 *******************************************************************************/
14 module dwtx.ui.internal.forms.widgets.FormUtil; 14 module dwtx.ui.internal.forms.widgets.FormUtil;
15 15
16
17 // import com.ibm.icu.text.BreakIterator;
16 18
17 import dwt.DWT; 19 import dwt.DWT;
18 import dwt.custom.ScrolledComposite; 20 import dwt.custom.ScrolledComposite;
19 import dwt.events.MouseEvent; 21 import dwt.events.MouseEvent;
20 import dwt.graphics.Device; 22 import dwt.graphics.Device;
38 import dwtx.ui.forms.widgets.FormToolkit; 40 import dwtx.ui.forms.widgets.FormToolkit;
39 import dwtx.ui.forms.widgets.ILayoutExtension; 41 import dwtx.ui.forms.widgets.ILayoutExtension;
40 42
41 import dwt.dwthelper.utils; 43 import dwt.dwthelper.utils;
42 44
43 //import com.ibm.icu.text.BreakIterator; 45 import dwtx.dwtxhelper.BreakIterator;
46 // import mango.icu.UString;
47 // import mango.icu.ULocale;
48 // import mango.icu.UBreakIterator;
49
44 public class FormUtil { 50 public class FormUtil {
45 51
46 //DWT_TODO temp type
47 static class BreakIterator{
48
49 public static const int DONE = 0;
50 char[] text;
51 static BreakIterator inst;
52 public static BreakIterator getWordInstance() {
53 if( inst is null ){
54 inst = new BreakIterator;
55 }
56 return inst;
57 }
58 uint last = 0;
59
60 public void setText(String text) {
61 this.text = text;
62 last = 0;
63 }
64 public int first() {
65 // TODO Auto-generated method stub
66 return text.length > 0 ? 1 : 0;
67 }
68
69 public int next() {
70 // TODO Auto-generated method stub
71 last++;
72 if( last >= text.length ){
73 return DONE;
74 }
75 return last;
76 }
77
78 }
79 public static const String PLUGIN_ID = "dwtx.ui.forms"; //$NON-NLS-1$ 52 public static const String PLUGIN_ID = "dwtx.ui.forms"; //$NON-NLS-1$
80 53
81 static const int H_SCROLL_INCREMENT = 5; 54 static const int H_SCROLL_INCREMENT = 5;
82 55
83 static const int V_SCROLL_INCREMENT = 64; 56 static const int V_SCROLL_INCREMENT = 64;
136 text.setLayoutData(gd); 109 text.setLayoutData(gd);
137 return text; 110 return text;
138 } 111 }
139 112
140 public static int computeMinimumWidth(GC gc, String text) { 113 public static int computeMinimumWidth(GC gc, String text) {
141 BreakIterator wb = BreakIterator.getWordInstance(); 114 auto wb = UBreakIterator.openWordIterator( ULocale.Default, text );
142 wb.setText(text); 115 scope(exit) wb.close();
143 int last = 0; 116 int last = 0;
144
145 int width = 0; 117 int width = 0;
146 118
147 for (int loc = wb.first(); loc !is BreakIterator.DONE; loc = wb.next()) { 119 for (int loc = wb.first(); loc !is UBreakIterator.DONE; loc = wb.next()) {
148 String word = text.substring(last, loc); 120 String word = text.substring(last, loc);
149 Point extent = gc.textExtent(word); 121 Point extent = gc.textExtent(word);
150 width = Math.max(width, extent.x); 122 width = Math.max(width, extent.x);
151 last = loc; 123 last = loc;
152 } 124 }
155 width = Math.max(width, extent.x); 127 width = Math.max(width, extent.x);
156 return width; 128 return width;
157 } 129 }
158 130
159 public static Point computeWrapSize(GC gc, String text, int wHint) { 131 public static Point computeWrapSize(GC gc, String text, int wHint) {
160 BreakIterator wb = BreakIterator.getWordInstance(); 132 auto wb = UBreakIterator.openWordIterator( ULocale.Default, text );
161 wb.setText(text); 133 scope(exit) wb.close();
162 FontMetrics fm = gc.getFontMetrics(); 134 FontMetrics fm = gc.getFontMetrics();
163 int lineHeight = fm.getHeight(); 135 int lineHeight = fm.getHeight();
164 136
165 int saved = 0; 137 int saved = 0;
166 int last = 0; 138 int last = 0;
167 int height = lineHeight; 139 int height = lineHeight;
168 int maxWidth = 0; 140 int maxWidth = 0;
169 for (int loc = wb.first(); loc !is BreakIterator.DONE; loc = wb.next()) { 141 for (int loc = wb.first(); loc !is UBreakIterator.DONE; loc = wb.next()) {
170 String word = text.substring(saved, loc); 142 String word = text.substring(saved, loc);
171 Point extent = gc.textExtent(word); 143 Point extent = gc.textExtent(word);
172 if (extent.x > wHint) { 144 if (extent.x > wHint) {
173 // overflow 145 // overflow
174 saved = last; 146 saved = last;
194 paintWrapText(gc, text, bounds, false); 166 paintWrapText(gc, text, bounds, false);
195 } 167 }
196 168
197 public static void paintWrapText(GC gc, String text, Rectangle bounds, 169 public static void paintWrapText(GC gc, String text, Rectangle bounds,
198 bool underline) { 170 bool underline) {
199 BreakIterator wb = BreakIterator.getWordInstance(); 171 auto wb = UBreakIterator.openWordIterator( ULocale.Default, text );
200 wb.setText(text); 172 scope(exit) wb.close();
201 FontMetrics fm = gc.getFontMetrics(); 173 FontMetrics fm = gc.getFontMetrics();
202 int lineHeight = fm.getHeight(); 174 int lineHeight = fm.getHeight();
203 int descent = fm.getDescent(); 175 int descent = fm.getDescent();
204 176
205 int saved = 0; 177 int saved = 0;
206 int last = 0; 178 int last = 0;
207 int y = bounds.y; 179 int y = bounds.y;
208 int width = bounds.width; 180 int width = bounds.width;
209 181
210 for (int loc = wb.first(); loc !is BreakIterator.DONE; loc = wb.next()) { 182 for (int loc = wb.first(); loc !is UBreakIterator.DONE; loc = wb.next()) {
211 String line = text.substring(saved, loc); 183 String line = text.substring(saved, loc);
212 Point extent = gc.textExtent(line); 184 Point extent = gc.textExtent(line);
213 185
214 if (extent.x > width) { 186 if (extent.x > width) {
215 // overflow 187 // overflow