diff options
Diffstat (limited to 'src/gui/text/qtextlayout.cpp')
| -rw-r--r-- | src/gui/text/qtextlayout.cpp | 464 |
1 files changed, 334 insertions, 130 deletions
diff --git a/src/gui/text/qtextlayout.cpp b/src/gui/text/qtextlayout.cpp index a996f59..354e8a9 100644 --- a/src/gui/text/qtextlayout.cpp +++ b/src/gui/text/qtextlayout.cpp @@ -52,6 +52,8 @@ #include "qtextformat_p.h" #include "qstyleoption.h" #include "qpainterpath.h" +#include "qglyphs.h" +#include "qglyphs_p.h" #include <limits.h> #include <qdebug.h> @@ -165,7 +167,7 @@ static QFixed alignLine(QTextEngine *eng, const QScriptLine &line) /*! Returns the inline object's rectangle. - \sa ascent() descent() width() + \sa ascent(), descent(), width() */ QRectF QTextInlineObject::rect() const { @@ -176,7 +178,7 @@ QRectF QTextInlineObject::rect() const /*! Returns the inline object's width. - \sa ascent() descent() rect() + \sa ascent(), descent(), rect() */ qreal QTextInlineObject::width() const { @@ -186,7 +188,7 @@ qreal QTextInlineObject::width() const /*! Returns the inline object's ascent. - \sa descent() width() rect() + \sa descent(), width(), rect() */ qreal QTextInlineObject::ascent() const { @@ -196,7 +198,7 @@ qreal QTextInlineObject::ascent() const /*! Returns the inline object's descent. - \sa ascent() width() rect() + \sa ascent(), width(), rect() */ qreal QTextInlineObject::descent() const { @@ -207,18 +209,17 @@ qreal QTextInlineObject::descent() const Returns the inline object's total height. This is equal to ascent() + descent() + 1. - \sa ascent() descent() width() rect() + \sa ascent(), descent(), width(), rect() */ qreal QTextInlineObject::height() const { return eng->layoutData->items[itm].height().toReal(); } - /*! Sets the inline object's width to \a w. - \sa width() ascent() descent() rect() + \sa width(), ascent(), descent(), rect() */ void QTextInlineObject::setWidth(qreal w) { @@ -228,7 +229,7 @@ void QTextInlineObject::setWidth(qreal w) /*! Sets the inline object's ascent to \a a. - \sa ascent() setDescent() width() rect() + \sa ascent(), setDescent(), width(), rect() */ void QTextInlineObject::setAscent(qreal a) { @@ -238,7 +239,7 @@ void QTextInlineObject::setAscent(qreal a) /*! Sets the inline object's decent to \a d. - \sa descent() setAscent() width() rect() + \sa descent(), setAscent(), width(), rect() */ void QTextInlineObject::setDescent(qreal d) { @@ -246,7 +247,7 @@ void QTextInlineObject::setDescent(qreal d) } /*! - The position of the inline object within the text layout. + The position of the inline object within the text layout. */ int QTextInlineObject::textPosition() const { @@ -254,8 +255,8 @@ int QTextInlineObject::textPosition() const } /*! - Returns an integer describing the format of the inline object - within the text layout. + Returns an integer describing the format of the inline object + within the text layout. */ int QTextInlineObject::formatIndex() const { @@ -263,7 +264,7 @@ int QTextInlineObject::formatIndex() const } /*! - Returns format of the inline object within the text layout. + Returns format of the inline object within the text layout. */ QTextFormat QTextInlineObject::format() const { @@ -273,7 +274,7 @@ QTextFormat QTextInlineObject::format() const } /*! - Returns if the object should be laid out right-to-left or left-to-right. + Returns if the object should be laid out right-to-left or left-to-right. */ Qt::LayoutDirection QTextInlineObject::textDirection() const { @@ -325,7 +326,6 @@ Qt::LayoutDirection QTextInlineObject::textDirection() const boundingRect(), and a minimumWidth() and a maximumWidth(). \sa QStaticText - */ /*! @@ -398,16 +398,19 @@ QTextLayout::~QTextLayout() Sets the layout's font to the given \a font. The layout is invalidated and must be laid out again. - \sa text() + \sa font() */ void QTextLayout::setFont(const QFont &font) { d->fnt = font; + d->feCache.reset(); } /*! Returns the current font that is used for the layout, or a default font if none is set. + + \sa setFont() */ QFont QTextLayout::font() const { @@ -441,10 +444,10 @@ QString QTextLayout::text() const } /*! - Sets the text option structure that controls the layout process to the - given \a option. + Sets the text option structure that controls the layout process to the + given \a option. - \sa textOption() QTextOption + \sa textOption() */ void QTextLayout::setTextOption(const QTextOption &option) { @@ -452,9 +455,9 @@ void QTextLayout::setTextOption(const QTextOption &option) } /*! - Returns the current text option used to control the layout process. + Returns the current text option used to control the layout process. - \sa setTextOption() QTextOption + \sa setTextOption() */ QTextOption QTextLayout::textOption() const { @@ -464,6 +467,8 @@ QTextOption QTextLayout::textOption() const /*! Sets the \a position and \a text of the area in the layout that is processed before editing occurs. + + \sa preeditAreaPosition(), preeditAreaText() */ void QTextLayout::setPreeditArea(int position, const QString &text) { @@ -492,6 +497,8 @@ void QTextLayout::setPreeditArea(int position, const QString &text) /*! Returns the position of the area in the text layout that will be processed before editing occurs. + + \sa preeditAreaText() */ int QTextLayout::preeditAreaPosition() const { @@ -500,6 +507,8 @@ int QTextLayout::preeditAreaPosition() const /*! Returns the text that is inserted in the layout before editing occurs. + + \sa preeditAreaPosition() */ QString QTextLayout::preeditAreaText() const { @@ -508,8 +517,7 @@ QString QTextLayout::preeditAreaText() const /*! - Sets the additional formats supported by the text layout to \a - formatList. + Sets the additional formats supported by the text layout to \a formatList. \sa additionalFormats(), clearAdditionalFormats() */ @@ -535,6 +543,7 @@ void QTextLayout::setAdditionalFormats(const QList<FormatRange> &formatList) } if (d->block.docHandle()) d->block.docHandle()->documentChange(d->block.position(), d->block.length()); + d->feCache.reset(); } /*! @@ -599,6 +608,8 @@ bool QTextLayout::cacheEnabled() const /*! Begins the layout process. + + \sa endLayout() */ void QTextLayout::beginLayout() { @@ -616,6 +627,8 @@ void QTextLayout::beginLayout() /*! Ends the layout process. + + \sa beginLayout() */ void QTextLayout::endLayout() { @@ -634,35 +647,33 @@ void QTextLayout::endLayout() d->freeMemory(); } -/*! \since 4.4 +/*! + \since 4.4 -Clears the line information in the layout. After having called -this function, lineCount() returns 0. - */ + Clears the line information in the layout. After having called + this function, lineCount() returns 0. +*/ void QTextLayout::clearLayout() { d->clearLineData(); } - /*! Returns the next valid cursor position after \a oldPos that respects the given cursor \a mode. + Returns value of \a oldPos, if \a oldPos is not a valid cursor position. - \sa isValidCursorPosition() previousCursorPosition() + \sa isValidCursorPosition(), previousCursorPosition() */ int QTextLayout::nextCursorPosition(int oldPos, CursorMode mode) const { -// qDebug("looking for next cursor pos for %d", oldPos); const HB_CharAttributes *attributes = d->attributes(); - if (!attributes) - return 0; - int len = d->block.isValid() ? - (d->block.length() - 1) - : d->layoutData->string.length(); - - if (oldPos >= len) + int len = d->block.isValid() ? d->block.length() - 1 + : d->layoutData->string.length(); + Q_ASSERT(len <= d->layoutData->string.length()); + if (!attributes || oldPos < 0 || oldPos >= len) return oldPos; + if (mode == SkipCharacters) { oldPos++; while (oldPos < len && !attributes[oldPos].charStop) @@ -679,22 +690,23 @@ int QTextLayout::nextCursorPosition(int oldPos, CursorMode mode) const while (oldPos < len && d->atSpace(oldPos)) oldPos++; } -// qDebug(" -> %d", oldPos); + return oldPos; } /*! Returns the first valid cursor position before \a oldPos that respects the given cursor \a mode. + Returns value of \a oldPos, if \a oldPos is not a valid cursor position. - \sa isValidCursorPosition() nextCursorPosition() + \sa isValidCursorPosition(), nextCursorPosition() */ int QTextLayout::previousCursorPosition(int oldPos, CursorMode mode) const { -// qDebug("looking for previous cursor pos for %d", oldPos); const HB_CharAttributes *attributes = d->attributes(); - if (!attributes || oldPos <= 0) - return 0; + if (!attributes || oldPos <= 0 || oldPos > d->layoutData->string.length()) + return oldPos; + if (mode == SkipCharacters) { oldPos--; while (oldPos && !attributes[oldPos].charStop) @@ -712,7 +724,7 @@ int QTextLayout::previousCursorPosition(int oldPos, CursorMode mode) const oldPos--; } } -// qDebug(" -> %d", oldPos); + return oldPos; } @@ -739,7 +751,6 @@ bool QTextLayout::isValidCursorPosition(int pos) const return attributes[pos].charStop; } - /*! Returns a new text line to be laid out if there is text to be inserted into the layout; otherwise returns an invalid text line. @@ -801,7 +812,7 @@ int QTextLayout::lineCount() const /*! Returns the \a{i}-th line of text in this text layout. - \sa lineCount() lineForTextPosition() + \sa lineCount(), lineForTextPosition() */ QTextLine QTextLayout::lineAt(int i) const { @@ -811,7 +822,7 @@ QTextLine QTextLayout::lineAt(int i) const /*! Returns the line that contains the cursor position specified by \a pos. - \sa isValidCursorPosition() lineAt() + \sa isValidCursorPosition(), lineAt() */ QTextLine QTextLayout::lineForTextPosition(int pos) const { @@ -902,8 +913,9 @@ qreal QTextLayout::maximumWidth() const return d->maxWidth.toReal(); } + /*! - \internal + \internal */ void QTextLayout::setFlags(int flags) { @@ -1028,6 +1040,35 @@ QScriptItem &QTextLineItemIterator::next() return *si; } +static QFixed offsetInLigature(const unsigned short *logClusters, + const QGlyphLayout &glyphs, + int pos, int max, int glyph_pos) +{ + int offsetInCluster = 0; + for (int i = pos - 1; i >= 0; i--) { + if (logClusters[i] == glyph_pos) + offsetInCluster++; + else + break; + } + + // in the case that the offset is inside a (multi-character) glyph, + // interpolate the position. + if (offsetInCluster > 0) { + int clusterLength = 0; + for (int i = pos - offsetInCluster; i < max; i++) { + if (logClusters[i] == glyph_pos) + clusterLength++; + else + break; + } + if (clusterLength) + return glyphs.advances_x[glyph_pos] * offsetInCluster / clusterLength; + } + + return 0; +} + bool QTextLineItemIterator::getSelectionBounds(QFixed *selectionX, QFixed *selectionWidth) const { *selectionX = *selectionWidth = 0; @@ -1067,8 +1108,19 @@ bool QTextLineItemIterator::getSelectionBounds(QFixed *selectionX, QFixed *selec swidth += glyphs.effectiveAdvance(g); } - *selectionX = x + soff; - *selectionWidth = swidth; + // If the starting character is in the middle of a ligature, + // selection should only contain the right part of that ligature + // glyph, so we need to get the width of the left part here and + // add it to *selectionX + QFixed leftOffsetInLigature = offsetInLigature(logClusters, glyphs, from, + to, start_glyph); + *selectionX = x + soff + leftOffsetInLigature; + *selectionWidth = swidth - leftOffsetInLigature; + // If the ending character is also part of a ligature, swidth does + // not contain that part yet, we also need to find out the width of + // that left part + *selectionWidth += offsetInLigature(logClusters, glyphs, to, + eng->length(item), end_glyph); } return true; } @@ -1114,9 +1166,26 @@ static inline QRectF clipIfValid(const QRectF &rect, const QRectF &clip) return clip.isValid() ? (rect & clip) : rect; } + +/*! + Returns the glyph indexes and positions for all glyphs in this QTextLayout. This is an + expensive function, and should not be called in a time sensitive context. + + \since 4.8 + + \sa draw(), QPainter::drawGlyphs() +*/ +QList<QGlyphs> QTextLayout::glyphs() const +{ + QList<QGlyphs> glyphs; + for (int i=0; i<d->lines.size(); ++i) + glyphs += QTextLine(i, d).glyphs(-1, -1); + + return glyphs; +} + /*! - Draws the whole layout on the painter \a p at the position specified by - \a pos. + Draws the whole layout on the painter \a p at the position specified by \a pos. The rendered layout includes the given \a selections and is clipped within the rectangle specified by \a clip. */ @@ -1290,12 +1359,12 @@ void QTextLayout::draw(QPainter *p, const QPointF &pos, const QVector<FormatRang } /*! - \fn void QTextLayout::drawCursor(QPainter *painter, const QPointF &position, int cursorPosition) const - \overload + \fn void QTextLayout::drawCursor(QPainter *painter, const QPointF &position, int cursorPosition) const + \overload - Draws a text cursor with the current pen at the given \a position using the - \a painter specified. - The corresponding position within the text is specified by \a cursorPosition. + Draws a text cursor with the current pen at the given \a position using the + \a painter specified. + The corresponding position within the text is specified by \a cursorPosition. */ void QTextLayout::drawCursor(QPainter *p, const QPointF &pos, int cursorPosition) const { @@ -1303,11 +1372,11 @@ void QTextLayout::drawCursor(QPainter *p, const QPointF &pos, int cursorPosition } /*! - \fn void QTextLayout::drawCursor(QPainter *painter, const QPointF &position, int cursorPosition, int width) const + \fn void QTextLayout::drawCursor(QPainter *painter, const QPointF &position, int cursorPosition, int width) const - Draws a text cursor with the current pen and the specified \a width at the given \a position using the - \a painter specified. - The corresponding position within the text is specified by \a cursorPosition. + Draws a text cursor with the current pen and the specified \a width at the given \a position using the + \a painter specified. + The corresponding position within the text is specified by \a cursorPosition. */ void QTextLayout::drawCursor(QPainter *p, const QPointF &pos, int cursorPosition, int width) const { @@ -1438,7 +1507,7 @@ void QTextLayout::drawCursor(QPainter *p, const QPointF &pos, int cursorPosition /*! Returns the line's bounding rectangle. - \sa x() y() textLength() width() + \sa x(), y(), textLength(), width() */ QRectF QTextLine::rect() const { @@ -1464,7 +1533,7 @@ QRectF QTextLine::naturalTextRect() const /*! Returns the line's x position. - \sa rect() y() textLength() width() + \sa rect(), y(), textLength(), width() */ qreal QTextLine::x() const { @@ -1474,7 +1543,7 @@ qreal QTextLine::x() const /*! Returns the line's y position. - \sa x() rect() textLength() width() + \sa x(), rect(), textLength(), width() */ qreal QTextLine::y() const { @@ -1484,7 +1553,7 @@ qreal QTextLine::y() const /*! Returns the line's width as specified by the layout() function. - \sa naturalTextWidth() x() y() textLength() rect() + \sa naturalTextWidth(), x(), y(), textLength(), rect() */ qreal QTextLine::width() const { @@ -1495,7 +1564,7 @@ qreal QTextLine::width() const /*! Returns the line's ascent. - \sa descent() height() + \sa descent(), height() */ qreal QTextLine::ascent() const { @@ -1505,7 +1574,7 @@ qreal QTextLine::ascent() const /*! Returns the line's descent. - \sa ascent() height() + \sa ascent(), height() */ qreal QTextLine::descent() const { @@ -1517,7 +1586,7 @@ qreal QTextLine::descent() const if leading is not included. If leading is included, this equals to ascent() + descent() + leading() + 1. - \sa ascent() descent() leading() setLeadingIncluded() + \sa ascent(), descent(), leading(), setLeadingIncluded() */ qreal QTextLine::height() const { @@ -1529,24 +1598,25 @@ qreal QTextLine::height() const Returns the line's leading. - \sa ascent() descent() height() + \sa ascent(), descent(), height() */ qreal QTextLine::leading() const { return eng->lines[i].leading.toReal(); } -/*! \since 4.6 +/*! + \since 4.6 - Includes positive leading into the line's height if \a included is true; - otherwise does not include leading. + Includes positive leading into the line's height if \a included is true; + otherwise does not include leading. - By default, leading is not included. + By default, leading is not included. - Note that negative leading is ignored, it must be handled - in the code using the text lines by letting the lines overlap. + Note that negative leading is ignored, it must be handled + in the code using the text lines by letting the lines overlap. - \sa leadingIncluded() + \sa leadingIncluded() */ void QTextLine::setLeadingIncluded(bool included) @@ -1555,20 +1625,21 @@ void QTextLine::setLeadingIncluded(bool included) } -/*! \since 4.6 +/*! + \since 4.6 - Returns true if positive leading is included into the line's height; otherwise returns false. + Returns true if positive leading is included into the line's height; + otherwise returns false. - By default, leading is not included. + By default, leading is not included. - \sa setLeadingIncluded() + \sa setLeadingIncluded() */ bool QTextLine::leadingIncluded() const { return eng->lines[i].leadingIncluded; } - /*! Returns the width of the line that is occupied by text. This is always \<= to width(), and is the minimum width that could be used @@ -1579,14 +1650,15 @@ qreal QTextLine::naturalTextWidth() const return eng->lines[i].textWidth.toReal(); } -/*! \since 4.7 - Returns the horizontal advance of the text. The advance of the text - is the distance from its position to the next position at which - text would naturally be drawn. +/*! + \since 4.7 + Returns the horizontal advance of the text. The advance of the text + is the distance from its position to the next position at which + text would naturally be drawn. - By adding the advance to the position of the text line and using this - as the position of a second text line, you will be able to position - the two lines side-by-side without gaps in-between. + By adding the advance to the position of the text line and using this + as the position of a second text line, you will be able to position + the two lines side-by-side without gaps in-between. */ qreal QTextLine::horizontalAdvance() const { @@ -1764,7 +1836,8 @@ static inline void addNextCluster(int &pos, int end, QScriptLine &line, int &gly ++line.length; } while (pos < end && logClusters[pos] == glyphPosition); do { // calculate the textWidth for the rest of the current cluster. - line.textWidth += glyphs.advances_x[glyphPosition] * !glyphs.attributes[glyphPosition].dontPrint; + if (!glyphs.attributes[glyphPosition].dontPrint) + line.textWidth += glyphs.advances_x[glyphPosition]; ++glyphPosition; } while (glyphPosition < current.num_glyphs && !glyphs.attributes[glyphPosition].clusterStart); @@ -1842,14 +1915,14 @@ void QTextLine::layout_helper(int maxGlyphs) lbh.currentPosition = qMax(line.from, current.position); end = current.position + eng->length(item); lbh.glyphs = eng->shapedGlyphs(¤t); + QFontEngine *fontEngine = eng->fontEngine(current); + if (lbh.fontEngine != fontEngine) { + lbh.fontEngine = fontEngine; + lbh.minimumRightBearing = qMin(QFixed(), + QFixed::fromReal(fontEngine->minRightBearing())); + } } const QScriptItem ¤t = eng->layoutData->items[item]; - QFontEngine *fontEngine = eng->fontEngine(current); - if (lbh.fontEngine != fontEngine) { - lbh.fontEngine = fontEngine; - lbh.minimumRightBearing = qMin(QFixed(), - QFixed::fromReal(fontEngine->minRightBearing())); - } lbh.tmpData.leading = qMax(lbh.tmpData.leading + lbh.tmpData.ascent, current.leading + current.ascent) - qMax(lbh.tmpData.ascent, @@ -2014,9 +2087,10 @@ found: eng->maxWidth += lbh.spaceData.textWidth; if (eng->option.flags() & QTextOption::IncludeTrailingSpaces) line.textWidth += lbh.spaceData.textWidth; - line.length += lbh.spaceData.length; - if (lbh.spaceData.length) + if (lbh.spaceData.length) { + line.length += lbh.spaceData.length; line.hasTrailingSpaces = true; + } line.justified = false; line.gridfitted = false; @@ -2170,6 +2244,151 @@ static void setPenAndDrawBackground(QPainter *p, const QPen &defaultPen, const Q } +namespace { + struct GlyphInfo + { + GlyphInfo(const QGlyphLayout &layout, const QPointF &position, + const QTextItemInt::RenderFlags &renderFlags) + : glyphLayout(layout), itemPosition(position), flags(renderFlags) + { + } + + QGlyphLayout glyphLayout; + QPointF itemPosition; + QTextItem::RenderFlags flags; + }; +} + +/*! + \internal + + 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. + + \since 4.8 + + \sa QTextLayout::glyphs() +*/ +QList<QGlyphs> QTextLine::glyphs(int from, int length) const +{ + const QScriptLine &line = eng->lines[i]; + + if (line.length == 0) + return QList<QGlyphs>(); + + QHash<QFontEngine *, GlyphInfo> glyphLayoutHash; + + QTextLineItemIterator iterator(eng, i); + qreal y = line.y.toReal() + line.base().toReal(); + while (!iterator.atEnd()) { + QScriptItem &si = iterator.next(); + if (si.analysis.flags >= QScriptAnalysis::TabOrObject) + continue; + + QPointF pos(iterator.x.toReal(), y); + if (from >= 0 && length >= 0 && + (from >= si.position + eng->length(&si) || from + length <= si.position)) + continue; + + QFont font = eng->font(si); + + QTextItem::RenderFlags flags; + if (font.overline()) + flags |= QTextItem::Overline; + if (font.underline()) + flags |= QTextItem::Underline; + if (font.strikeOut()) + flags |= QTextItem::StrikeOut; + if (si.analysis.bidiLevel % 2) + flags |= QTextItem::RightToLeft; + + QGlyphLayout glyphLayout = eng->shapedGlyphs(&si).mid(iterator.glyphsStart, + iterator.glyphsEnd - iterator.glyphsStart); + + if (glyphLayout.numGlyphs > 0) { + QFontEngine *mainFontEngine = font.d->engineForScript(si.analysis.script); + if (mainFontEngine->type() == QFontEngine::Multi) { + QFontEngineMulti *multiFontEngine = static_cast<QFontEngineMulti *>(mainFontEngine); + int start = 0; + int end; + int which = glyphLayout.glyphs[0] >> 24; + for (end = 0; end < glyphLayout.numGlyphs; ++end) { + const int e = glyphLayout.glyphs[end] >> 24; + if (e == which) + continue; + + QGlyphLayout subLayout = glyphLayout.mid(start, end - start); + glyphLayoutHash.insertMulti(multiFontEngine->engine(which), + GlyphInfo(subLayout, pos, flags)); + + start = end; + which = e; + } + + QGlyphLayout subLayout = glyphLayout.mid(start, end - start); + glyphLayoutHash.insertMulti(multiFontEngine->engine(which), + GlyphInfo(subLayout, pos, flags)); + + } else { + glyphLayoutHash.insertMulti(mainFontEngine, + GlyphInfo(glyphLayout, pos, flags)); + } + } + } + + QHash<QPair<QFontEngine *, int>, QGlyphs> glyphsHash; + + QList<QFontEngine *> keys = glyphLayoutHash.uniqueKeys(); + for (int i=0; i<keys.size(); ++i) { + QFontEngine *fontEngine = keys.at(i); + + // Make a font for this particular engine + QFont font = fontEngine->createExplicitFont(); + + QList<GlyphInfo> glyphLayouts = glyphLayoutHash.values(fontEngine); + for (int j=0; j<glyphLayouts.size(); ++j) { + const QPointF &pos = glyphLayouts.at(j).itemPosition; + const QGlyphLayout &glyphLayout = glyphLayouts.at(j).glyphLayout; + const QTextItem::RenderFlags &flags = glyphLayouts.at(j).flags; + + font.setOverline(flags.testFlag(QTextItem::Overline)); + font.setUnderline(flags.testFlag(QTextItem::Underline)); + font.setStrikeOut(flags.testFlag(QTextItem::StrikeOut)); + + QVarLengthArray<glyph_t> glyphsArray; + QVarLengthArray<QFixedPoint> positionsArray; + + fontEngine->getGlyphPositions(glyphLayout, QTransform(), flags, glyphsArray, + positionsArray); + Q_ASSERT(glyphsArray.size() == positionsArray.size()); + + QVector<quint32> glyphs; + QVector<QPointF> positions; + for (int i=0; i<glyphsArray.size(); ++i) { + glyphs.append(glyphsArray.at(i) & 0xffffff); + positions.append(positionsArray.at(i).toPointF() + pos); + } + + QGlyphs glyphIndexes; + glyphIndexes.setGlyphIndexes(glyphs); + glyphIndexes.setPositions(positions); + + QPair<QFontEngine *, int> key(fontEngine, int(flags)); + + if (!glyphsHash.contains(key)) + glyphsHash.insert(key, QGlyphs()); + + QGlyphs &target = glyphsHash[key]; + target += glyphIndexes; + target.setFont(font); + } + } + + return glyphsHash.values(); +} + /*! \fn void QTextLine::draw(QPainter *painter, const QPointF &position, const QTextLayout::FormatRange *selection) const @@ -2219,8 +2438,12 @@ void QTextLine::draw(QPainter *p, const QPointF &pos, const QTextLayout::FormatR QTextCharFormat format; if (eng->hasFormats() || selection) { - if (!suppressColors) - format = eng->format(&si); + format = eng->format(&si); + if (suppressColors) { + format.clearForeground(); + format.clearBackground(); + format.clearProperty(QTextFormat::TextUnderlineColor); + } if (selection) format.merge(selection->format); @@ -2366,21 +2589,20 @@ void QTextLine::draw(QPainter *p, const QPointF &pos, const QTextLayout::FormatR } /*! - \fn int QTextLine::cursorToX(int cursorPos, Edge edge) const + \fn int QTextLine::cursorToX(int cursorPos, Edge edge) const - \overload + \overload */ - /*! - Converts the cursor position \a cursorPos to the corresponding x position - inside the line, taking account of the \a edge. + Converts the cursor position \a cursorPos to the corresponding x position + inside the line, taking account of the \a edge. - If \a cursorPos is not a valid cursor position, the nearest valid - cursor position will be used instead, and cpos will be modified to - point to this valid cursor position. + If \a cursorPos is not a valid cursor position, the nearest valid + cursor position will be used instead, and cpos will be modified to + point to this valid cursor position. - \sa xToCursor() + \sa xToCursor() */ qreal QTextLine::cursorToX(int *cursorPos, Edge edge) const { @@ -2479,14 +2701,6 @@ qreal QTextLine::cursorToX(int *cursorPos, Edge edge) const if(pos == l) x += si->width; } else { - int offsetInCluster = 0; - for (int i=pos-1; i >= 0; i--) { - if (logClusters[i] == glyph_pos) - offsetInCluster++; - else - break; - } - if (reverse) { int end = qMin(lineEnd, si->position + l) - si->position; int glyph_end = end == l ? si->num_glyphs : logClusters[end]; @@ -2498,17 +2712,7 @@ qreal QTextLine::cursorToX(int *cursorPos, Edge edge) const for (int i = glyph_start; i < glyph_pos; i++) x += glyphs.effectiveAdvance(i); } - if (offsetInCluster > 0) { // in the case that the offset is inside a (multi-character) glyph, interpolate the position. - int clusterLength = 0; - for (int i=pos - offsetInCluster; i < line.length; i++) { - if (logClusters[i] == glyph_pos) - clusterLength++; - else - break; - } - if (clusterLength) - x+= glyphs.advances_x[glyph_pos] * offsetInCluster / clusterLength; - } + x += offsetInLigature(logClusters, glyphs, pos, line.length, glyph_pos); } *cursorPos = pos + si->position; @@ -2516,12 +2720,12 @@ qreal QTextLine::cursorToX(int *cursorPos, Edge edge) const } /*! - \fn int QTextLine::xToCursor(qreal x, CursorPosition cpos) const + \fn int QTextLine::xToCursor(qreal x, CursorPosition cpos) const - Converts the x-coordinate \a x, to the nearest matching cursor - position, depending on the cursor position type, \a cpos. + Converts the x-coordinate \a x, to the nearest matching cursor + position, depending on the cursor position type, \a cpos. - \sa cursorToX() + \sa cursorToX() */ int QTextLine::xToCursor(qreal _x, CursorPosition cpos) const { |