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comparison dwt/graphics/TextLayout.d @ 284:6956821fe8ed

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Fixes for StyledText
author Frank Benoit <benoit@tionex.de>
date Mon, 04 Aug 2008 02:06:13 +0200
parents edcf78db8722
children
comparison
equal deleted inserted replaced
283:05e48e1e65d1 284:6956821fe8ed
138 String segmentsText = getSegmentsText(); 138 String segmentsText = getSegmentsText();
139 OS.pango_layout_set_text (layout, segmentsText.ptr, segmentsText.length); 139 OS.pango_layout_set_text (layout, segmentsText.ptr, segmentsText.length);
140 if (styles.length is 2 && styles[0].style is null && ascent is -1 && descent is -1 && segments is null) return; 140 if (styles.length is 2 && styles[0].style is null && ascent is -1 && descent is -1 && segments is null) return;
141 auto ptr = OS.pango_layout_get_text(layout); 141 auto ptr = OS.pango_layout_get_text(layout);
142 attrList = OS.pango_attr_list_new(); 142 attrList = OS.pango_attr_list_new();
143 //PangoAttribute* attribute = new PangoAttribute(); 143 PangoAttribute* attribute;
144 char[] chars = null; 144 char[] chars = null;
145 int segementsLength = segmentsText.length; 145 int segementsLength = segmentsText.length;
146 if ((ascent !is -1 || descent !is -1) && segementsLength > 0) { 146 if ((ascent !is -1 || descent !is -1) && segementsLength > 0) {
147 PangoRectangle rect; 147 PangoRectangle rect;
148 if (ascent !is -1) rect.y = -(ascent * OS.PANGO_SCALE); 148 if (ascent !is -1) rect.y = -(ascent * OS.PANGO_SCALE);
154 auto line = OS.pango_layout_get_line(layout, lineIndex); 154 auto line = OS.pango_layout_get_line(layout, lineIndex);
155 int bytePos = line.start_index; 155 int bytePos = line.start_index;
156 /* Note: The length in bytes of ZWS and ZWNBS are both equals to 3 */ 156 /* Note: The length in bytes of ZWS and ZWNBS are both equals to 3 */
157 int offset = lineIndex * 6; 157 int offset = lineIndex * 6;
158 PangoAttribute* attr = OS.pango_attr_shape_new (&rect, &rect); 158 PangoAttribute* attr = OS.pango_attr_shape_new (&rect, &rect);
159 attr.start_index = bytePos + offset; 159 attribute = attr;
160 attr.end_index = bytePos + offset + 3; 160 attribute.start_index = bytePos + offset;
161 attribute.end_index = bytePos + offset + 3;
161 OS.pango_attr_list_insert(attrList, attr); 162 OS.pango_attr_list_insert(attrList, attr);
162 attr = OS.pango_attr_shape_new (&rect, &rect); 163 attr = OS.pango_attr_shape_new (&rect, &rect);
163 attr.start_index = bytePos + offset + 3; 164 attribute = attr;
164 attr.end_index = bytePos + offset + 6; 165 attribute.start_index = bytePos + offset + 3;
166 attribute.end_index = bytePos + offset + 6;
165 OS.pango_attr_list_insert(attrList, attr); 167 OS.pango_attr_list_insert(attrList, attr);
166 int pos = bytePos;//OS.g_utf8_pointer_to_offset(ptr, ptr + bytePos); 168 int pos = bytePos;//OS.g_utf8_pointer_to_offset(ptr, ptr + bytePos);
167 chars[pos + lineIndex * 6 +0 .. pos + lineIndex * 6 + 3] = STR_ZWS; 169 chars[pos + lineIndex * 6 +0 .. pos + lineIndex * 6 + 3] = STR_ZWS;
168 chars[pos + lineIndex * 6 +3 .. pos + lineIndex * 6 + 6] = STR_ZWNBS; 170 chars[pos + lineIndex * 6 +3 .. pos + lineIndex * 6 + 6] = STR_ZWNBS;
169 chars[ oldPos + lineIndex*6 .. oldPos + lineIndex*6 + pos - oldPos ] = 171 chars[ oldPos + lineIndex*6 .. oldPos + lineIndex*6 + pos - oldPos ] =
1345 int incr = dcont.getRelativeCodePointOffset( toffset, step ); 1347 int incr = dcont.getRelativeCodePointOffset( toffset, step );
1346 return offset + incr; 1348 return offset + incr;
1347 } 1349 }
1348 PangoLogAttr* attrs; 1350 PangoLogAttr* attrs;
1349 int nAttrs; 1351 int nAttrs;
1352 // return one attr per codepoint (=char in pango)
1350 OS.pango_layout_get_log_attrs(layout, &attrs, &nAttrs); 1353 OS.pango_layout_get_log_attrs(layout, &attrs, &nAttrs);
1351 if (attrs is null) return offset + step; 1354 if (attrs is null) return offset + step;
1352 length_ = OS.g_utf8_strlen(cont, -1); 1355 length_ = dcont.length;//OS.g_utf8_strlen(cont, -1);
1353 offset = translateOffset(offset); 1356 offset = translateOffset(offset);
1354 offset = dcont.utf8AdjustOffset( offset ); 1357 offset = dcont.utf8AdjustOffset( offset );
1355 PangoLogAttr* logAttr = new PangoLogAttr(); 1358
1359 PangoLogAttr* logAttr;
1356 offset = validateOffset( dcont, offset, step); 1360 offset = validateOffset( dcont, offset, step);
1361 // the loop is byte oriented
1357 while (0 < offset && offset < length_) { 1362 while (0 < offset && offset < length_) {
1358 *logAttr = attrs[ offset ]; 1363 logAttr = & attrs[ OS.g_utf8_pointer_to_offset( cont, cont+offset) ];
1359 if (((movement & DWT.MOVEMENT_CLUSTER) !is 0) && ( logAttr.bitfield0 & (1<<4/*is_cursor_position*/))) break; 1364 if (((movement & DWT.MOVEMENT_CLUSTER) !is 0) && logAttr.is_cursor_position ) break;
1360 if ((movement & DWT.MOVEMENT_WORD) !is 0) { 1365 if ((movement & DWT.MOVEMENT_WORD) !is 0) {
1361 if (forward) { 1366 if (forward) {
1362 if (logAttr.bitfield0 & (1<<6/*is_word_end*/)) break; 1367 if (logAttr.is_word_end ) break;
1363 } else { 1368 } else {
1364 if (logAttr.bitfield0 & (1<<5/*is_word_start*/)) break; 1369 if (logAttr.is_word_start ) break;
1365 } 1370 }
1366 } 1371 }
1367 if ((movement & DWT.MOVEMENT_WORD_START) !is 0) { 1372 if ((movement & DWT.MOVEMENT_WORD_START) !is 0) {
1368 if (logAttr.bitfield0 & (1<<5/*is_word_start*/)) break; 1373 if (logAttr.is_word_start ) break;
1369 } 1374 }
1370 if ((movement & DWT.MOVEMENT_WORD_END) !is 0) { 1375 if ((movement & DWT.MOVEMENT_WORD_END) !is 0) {
1371 if (logAttr.bitfield0 & (1<<6/*is_word_end*/)) break; 1376 if (logAttr.is_word_end ) break;
1372 } 1377 }
1373 offset = validateOffset( dcont, offset, step); 1378 offset = validateOffset( dcont, offset, step);
1374 } 1379 }
1375 OS.g_free(attrs); 1380 OS.g_free(attrs);
1376 return Math.min(Math.max(0, untranslateOffset(offset)), text.length); 1381 return Math.min(Math.max(0, untranslateOffset(offset)), text.length);