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comparison dwt/graphics/TextLayout.d @ 238:380bad9f6852

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reverted char[] to String
author Frank Benoit <benoit@tionex.de>
date Mon, 05 May 2008 00:42:55 +0200
parents 08789b28bdf3
children ce446666f5a2
comparison
equal deleted inserted replaced
237:98b80b00af79 238:380bad9f6852
55 55
56 static class StyleItem { 56 static class StyleItem {
57 TextStyle style; 57 TextStyle style;
58 int start; 58 int start;
59 59
60 public override char[] toString () { 60 public override String toString () {
61 return Format( "StyleItem {{{}, {}}", start, style ); 61 return Format( "StyleItem {{{}, {}}", start, style );
62 } 62 }
63 } 63 }
64 64
65 Font font; 65 Font font;
66 char[] text; 66 String text;
67 int ascent, descent; 67 int ascent, descent;
68 int[] segments; 68 int[] segments;
69 int[] tabs; 69 int[] tabs;
70 StyleItem[] styles; 70 StyleItem[] styles;
71 PangoLayout* layout; 71 PangoLayout* layout;
75 // LTR_MARK LEFT-TO-RIGHT MARK 75 // LTR_MARK LEFT-TO-RIGHT MARK
76 // RTL_MARK RIGHT-TO-LEFT MARK 76 // RTL_MARK RIGHT-TO-LEFT MARK
77 // ZWS ZERO WIDTH SPACE 77 // ZWS ZERO WIDTH SPACE
78 // ZWNBS ZERO WIDTH NO-BREAK SPACE 78 // ZWNBS ZERO WIDTH NO-BREAK SPACE
79 static const dchar LTR_MARK = '\u200E', RTL_MARK = '\u200F', ZWS = '\u200B', ZWNBS = '\uFEFF'; 79 static const dchar LTR_MARK = '\u200E', RTL_MARK = '\u200F', ZWS = '\u200B', ZWNBS = '\uFEFF';
80 static const char[] STR_LTR_MARK = "\u200E", STR_RTL_MARK = "\u200F", STR_ZWS = "\u200B", STR_ZWNBS = "\uFEFF"; 80 static const String STR_LTR_MARK = "\u200E", STR_RTL_MARK = "\u200F", STR_ZWS = "\u200B", STR_ZWNBS = "\uFEFF";
81 81
82 /** 82 /**
83 * Constructs a new instance of this class on the given device. 83 * Constructs a new instance of this class on the given device.
84 * <p> 84 * <p>
85 * You must dispose the text layout when it is no longer required. 85 * You must dispose the text layout when it is no longer required.
121 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); 121 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED);
122 } 122 }
123 123
124 void computeRuns () { 124 void computeRuns () {
125 if (attrList !is null) return; 125 if (attrList !is null) return;
126 char[] segmentsText = getSegmentsText(); 126 String segmentsText = getSegmentsText();
127 OS.pango_layout_set_text (layout, segmentsText.ptr, segmentsText.length); 127 OS.pango_layout_set_text (layout, segmentsText.ptr, segmentsText.length);
128 if (styles.length is 2 && styles[0].style is null && ascent is -1 && descent is -1 && segments is null) return; 128 if (styles.length is 2 && styles[0].style is null && ascent is -1 && descent is -1 && segments is null) return;
129 auto ptr = OS.pango_layout_get_text(layout); 129 auto ptr = OS.pango_layout_get_text(layout);
130 attrList = OS.pango_attr_list_new(); 130 attrList = OS.pango_attr_list_new();
131 //PangoAttribute* attribute = new PangoAttribute(); 131 //PangoAttribute* attribute = new PangoAttribute();
161 count++; 161 count++;
162 } while (OS.pango_layout_iter_next_line(iter)); 162 } while (OS.pango_layout_iter_next_line(iter));
163 OS.pango_layout_iter_free (iter); 163 OS.pango_layout_iter_free (iter);
164 chars[ oldPos + count*6 .. oldPos + count*6 + segementsLength - oldPos ] = 164 chars[ oldPos + count*6 .. oldPos + count*6 + segementsLength - oldPos ] =
165 segmentsText[ oldPos .. segementsLength ]; 165 segmentsText[ oldPos .. segementsLength ];
166 char[] buffer = chars;// Converter.wcsToMbcs(null, chars, false); 166 String buffer = chars;// Converter.wcsToMbcs(null, chars, false);
167 167
168 OS.pango_layout_set_text (layout, buffer.ptr, buffer.length); 168 OS.pango_layout_set_text (layout, buffer.ptr, buffer.length);
169 ptr = OS.pango_layout_get_text(layout); 169 ptr = OS.pango_layout_get_text(layout);
170 } else { 170 } else {
171 chars = segmentsText.dup; 171 chars = segmentsText.dup;
1196 public int[] getSegments() { 1196 public int[] getSegments() {
1197 checkLayout(); 1197 checkLayout();
1198 return segments; 1198 return segments;
1199 } 1199 }
1200 1200
1201 char[] getSegmentsText() { 1201 String getSegmentsText() {
1202 if (segments is null) return text; 1202 if (segments is null) return text;
1203 int nSegments = segments.length; 1203 int nSegments = segments.length;
1204 if (nSegments <= 1) return text; 1204 if (nSegments <= 1) return text;
1205 int len = text.length; 1205 int len = text.length;
1206 if (len is 0) return text; 1206 if (len is 0) return text;
1208 if (segments[0] is 0 && segments[1] is len) return text; 1208 if (segments[0] is 0 && segments[1] is len) return text;
1209 } 1209 }
1210 char[] oldChars = text[0..len].dup; 1210 char[] oldChars = text[0..len].dup;
1211 char[] newChars = new char[len + nSegments*3]; 1211 char[] newChars = new char[len + nSegments*3];
1212 int charCount = 0, segmentCount = 0; 1212 int charCount = 0, segmentCount = 0;
1213 char[] separator = getOrientation() is DWT.RIGHT_TO_LEFT ? STR_RTL_MARK : STR_LTR_MARK; 1213 String separator = getOrientation() is DWT.RIGHT_TO_LEFT ? STR_RTL_MARK : STR_LTR_MARK;
1214 while (charCount < len) { 1214 while (charCount < len) {
1215 if (segmentCount < nSegments && charCount is segments[segmentCount]) { 1215 if (segmentCount < nSegments && charCount is segments[segmentCount]) {
1216 newChars[charCount + segmentCount .. charCount + segmentCount + separator.length ] = separator; 1216 newChars[charCount + segmentCount .. charCount + segmentCount + separator.length ] = separator;
1217 segmentCount+=separator.length; 1217 segmentCount+=separator.length;
1218 } else { 1218 } else {
1320 * 1320 *
1321 * @exception DWTException <ul> 1321 * @exception DWTException <ul>
1322 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> 1322 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
1323 * </ul> 1323 * </ul>
1324 */ 1324 */
1325 public char[] getText () { 1325 public String getText () {
1326 checkLayout (); 1326 checkLayout ();
1327 return text; 1327 return text;
1328 } 1328 }
1329 1329
1330 /** 1330 /**
1733 * 1733 *
1734 * @exception DWTException <ul> 1734 * @exception DWTException <ul>
1735 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> 1735 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
1736 * </ul> 1736 * </ul>
1737 */ 1737 */
1738 public void setText (char[] text) { 1738 public void setText (String text) {
1739 checkLayout (); 1739 checkLayout ();
1740 if (text.equals(this.text)) return; 1740 if (text.equals(this.text)) return;
1741 freeRuns(); 1741 freeRuns();
1742 this.text = text; 1742 this.text = text;
1743 styles = new StyleItem[2]; 1743 styles = new StyleItem[2];
1795 * Returns a string containing a concise, human-readable 1795 * Returns a string containing a concise, human-readable
1796 * description of the receiver. 1796 * description of the receiver.
1797 * 1797 *
1798 * @return a string representation of the receiver 1798 * @return a string representation of the receiver
1799 */ 1799 */
1800 public override char[] toString () { 1800 public override String toString () {
1801 if (isDisposed()) return "TextLayout {*DISPOSED*}"; 1801 if (isDisposed()) return "TextLayout {*DISPOSED*}";
1802 return Format( "TextLayout {{{}}", layout ); 1802 return Format( "TextLayout {{{}}", layout );
1803 } 1803 }
1804 1804
1805 /* 1805 /*
1833 } 1833 }
1834 } 1834 }
1835 return offset - invalidOffsets.length; 1835 return offset - invalidOffsets.length;
1836 } 1836 }
1837 1837
1838 int validateOffset( char[] cont, int offset, int step) { 1838 int validateOffset( String cont, int offset, int step) {
1839 if (invalidOffsets is null) return offset + step; 1839 if (invalidOffsets is null) return offset + step;
1840 int i = step > 0 ? 0 : invalidOffsets.length - 1; 1840 int i = step > 0 ? 0 : invalidOffsets.length - 1;
1841 do { 1841 do {
1842 if( offset is 0 && step < 0 ){ 1842 if( offset is 0 && step < 0 ){
1843 offset += step; 1843 offset += step;