d->strikeOut = strikeOut;
}
+/*!
+ Returns the smallest rectangle that contains all glyphs in this QGlyphRun.
+
+ \since 5.0
+*/
+QRectF QGlyphRun::boundingRect() const
+{
+ qreal minX, minY, maxX, maxY;
+
+ for (int i=0; i<qMin(d->glyphPositions.size(), d->glyphIndexes.size()); ++i) {
+ QRectF glyphRect = d->rawFont.boundingRect(d->glyphIndexes.at(i));
+ glyphRect.translate(d->glyphPositions.at(i));
+
+ if (i == 0) {
+ minX = glyphRect.left();
+ minY = glyphRect.top();
+ maxX = glyphRect.right();
+ maxY = glyphRect.bottom();
+ } else {
+ minX = qMin(glyphRect.left(), minX);
+ minY = qMin(glyphRect.top(), minY);
+ maxX = qMax(glyphRect.right(),maxX);
+ maxY = qMax(glyphRect.bottom(), maxY);
+ }
+ }
+
+ return QRectF(QPointF(minX, minY), QPointF(maxX, maxY));
+}
+
QT_END_NAMESPACE
#endif // QT_NO_RAWFONT
\sa draw(), QPainter::drawGlyphRun()
*/
#if !defined(QT_NO_RAWFONT)
-QList<QGlyphRun> QTextLayout::glyphRuns() const
-{
+QList<QGlyphRun> QTextLayout::glyphRuns(int from, int length) const
+{
+ if (from < 0)
+ from = 0;
+ if (length < 0)
+ length = text().length();
+
QList<QGlyphRun> glyphs;
- for (int i=0; i<d->lines.size(); ++i)
- glyphs += QTextLine(i, d).glyphs(-1, -1);
+ for (int i=0; i<d->lines.size(); ++i) {
+ if (d->lines[i].from > from + length)
+ break;
+ else if (d->lines[i].from + d->lines[i].length >= from)
+ glyphs += QTextLine(i, d).glyphRuns(from, length);
+ }
return glyphs;
}
}
/*!
- \internal
+ Returns the glyph indexes and positions for all glyphs in this QTextLine for characters
+ in the range defined by \a from and \a length. The \a from index is relative to the beginning
+ of the text in the containing QTextLayout, and the range must be within the range of QTextLine
+ as given by functions textStart() and textLength().
- Returns the glyph indexes and positions for all glyphs in this QTextLine which reside in
- QScriptItems that overlap with the range defined by \a from and \a length. The arguments
- specify characters, relative to the text in the layout. Note that it is not possible to
- use this function to retrieve a subset of the glyphs in a QScriptItem.
+ If \a from is negative, it will default to textStart(), and if \a length is negative it will
+ default to the return value of textLength().
- \since 4.8
+ \since 5.0
\sa QTextLayout::glyphRuns()
*/
#if !defined(QT_NO_RAWFONT)
-QList<QGlyphRun> QTextLine::glyphs(int from, int length) const
+QList<QGlyphRun> QTextLine::glyphRuns(int from, int length) const
{
const QScriptLine &line = eng->lines[i];
if (line.length == 0)
return QList<QGlyphRun>();
+ if (from < 0)
+ from = textStart();
+
+ if (length < 0)
+ length = textLength();
+
QHash<QFontEngine *, GlyphInfo> glyphLayoutHash;
QTextLineItemIterator iterator(eng, i);
QPointF pos(iterator.x.toReal(), y);
if (from >= 0 && length >= 0 &&
- (from >= si.position + eng->length(&si) || from + length <= si.position))
+ (from >= si.position + eng->length(&si) || from + length <= si.position)) {
continue;
+ }
QFont font = eng->font(si);
flags |= QTextItem::Underline;
if (font.strikeOut())
flags |= QTextItem::StrikeOut;
- if (si.analysis.bidiLevel % 2)
+
+ bool rtl = false;
+ if (si.analysis.bidiLevel % 2) {
flags |= QTextItem::RightToLeft;
+ rtl = true;
+ }
- QGlyphLayout glyphLayout = eng->shapedGlyphs(&si).mid(iterator.glyphsStart,
- iterator.glyphsEnd - iterator.glyphsStart);
+ int relativeFrom = qMax(iterator.itemStart, from) - si.position;
+ int relativeTo = qMin(iterator.itemEnd, from + length - 1) - si.position;
+
+ unsigned short *logClusters = eng->logClusters(&si);
+ int glyphsStart = logClusters[relativeFrom];
+ int glyphsEnd = (relativeTo == eng->length(&si))
+ ? si.num_glyphs - 1
+ : logClusters[relativeTo];
+
+ QGlyphLayout glyphLayout = eng->shapedGlyphs(&si);
+
+ // Calculate new x position of glyph layout for a subset. This becomes somewhat complex
+ // when we're breaking a RTL script item, since the expected position passed into
+ // getGlyphPositions() is the left-most edge of the left-most glyph in an RTL run.
+ if (relativeFrom != (iterator.itemStart - si.position) && !rtl) {
+ for (int i=0; i<glyphsStart; ++i) {
+ QFixed justification = QFixed::fromFixed(glyphLayout.justifications[i].space_18d6);
+ pos += QPointF((glyphLayout.advances_x[i] + justification).toReal(),
+ glyphLayout.advances_y[i].toReal());
+ }
+ } else if (relativeTo != (iterator.itemEnd - si.position) && rtl) {
+ for (int i=glyphLayout.numGlyphs - 1; i>glyphsEnd; --i) {
+ QFixed justification = QFixed::fromFixed(glyphLayout.justifications[i].space_18d6);
+ pos += QPointF((glyphLayout.advances_x[i] + justification).toReal(),
+ glyphLayout.advances_y[i].toReal());
+ }
+ }
+
+ glyphLayout = glyphLayout.mid(glyphsStart, glyphsEnd - glyphsStart + 1);
if (glyphLayout.numGlyphs > 0) {
QFontEngine *mainFontEngine = font.d->engineForScript(si.analysis.script);
QGlyphLayout subLayout = glyphLayout.mid(start, end - start);
glyphLayoutHash.insertMulti(multiFontEngine->engine(which),
GlyphInfo(subLayout, pos, flags));
- for (int i = 0; i < subLayout.numGlyphs; i++)
+ for (int i = 0; i < subLayout.numGlyphs; i++) {
pos += QPointF(subLayout.advances_x[i].toReal(),
subLayout.advances_y[i].toReal());
+ }
start = end;
which = e;
pos = 0;
int glyph_pos = pos == l ? si->num_glyphs : logClusters[pos];
- if (edge == Trailing) {
+ if (edge == Trailing && glyph_pos < si->num_glyphs) {
// trailing edge is leading edge of next cluster
+ glyph_pos++;
while (glyph_pos < si->num_glyphs && !glyphs.attributes[glyph_pos].clusterStart)
glyph_pos++;
}
projects / profile / ivi / qtbase.git / commitdiff