QGlyphLayout Struct Reference

#include <qtextengine_p.h>

Inheritance diagram for QGlyphLayout:

Public Functions
void	clear (int first=0, int last=-1)
char *	data ()
QFixed	effectiveAdvance (int item) const
void	grow (char *address, int totalGlyphs)
QGlyphLayoutInstance	instance (int position) const
QGlyphLayout	mid (int position, int n=-1) const
	QGlyphLayout ()
	QGlyphLayout (char *address, int totalGlyphs)
void	setInstance (int position, const QGlyphLayoutInstance &g)

Static Public Functions
static int	spaceNeededForGlyphLayout (int totalGlyphs)

Public Variables
QFixed *	advances_x
QFixed *	advances_y
HB_GlyphAttributes *	attributes
HB_Glyph *	glyphs
QGlyphJustification *	justifications
int	numGlyphs
QFixedPoint *	offsets

Detailed Description

Definition at line 168 of file qtextengine_p.h.

Constructors and Destructors

QGlyphLayout() [1/2]

QGlyphLayout::QGlyphLayout ( )

inline

Definition at line 180 of file qtextengine_p.h.

: numGlyphs(0) {}

QGlyphLayout() [2/2]

QGlyphLayout::QGlyphLayout ( char *  address, int  totalGlyphs  )

inlineexplicit

Definition at line 182 of file qtextengine_p.h.

    {
        offsets = reinterpret_cast<QFixedPoint *>(address);
        int offset = totalGlyphs * sizeof(HB_FixedPoint);
        glyphs = reinterpret_cast<HB_Glyph *>(address + offset);
        offset += totalGlyphs * sizeof(HB_Glyph);
        advances_x = reinterpret_cast<QFixed *>(address + offset);
        offset += totalGlyphs * sizeof(QFixed);
        advances_y = reinterpret_cast<QFixed *>(address + offset);
        offset += totalGlyphs * sizeof(QFixed);
        justifications = reinterpret_cast<QGlyphJustification *>(address + offset);
        offset += totalGlyphs * sizeof(QGlyphJustification);
        attributes = reinterpret_cast<HB_GlyphAttributes *>(address + offset);
        numGlyphs = totalGlyphs;
    }

Functions

clear()

void QGlyphLayout::clear ( int  first = 0, int  last = -1  )

inline

Definition at line 244 of file qtextengine_p.h.

Referenced by grow(), and QTextEngine::LayoutData::LayoutData().

                                                    {
        if (last == -1)
            last = numGlyphs;
        if (first == 0 && last == numGlyphs
            && reinterpret_cast<char *>(offsets + numGlyphs) == reinterpret_cast<char *>(glyphs)) {
            memset(offsets, 0, spaceNeededForGlyphLayout(numGlyphs));
        } else {
            const int num = last - first;
            memset(offsets + first, 0, num * sizeof(QFixedPoint));
            memset(glyphs + first, 0, num * sizeof(HB_Glyph));
            memset(advances_x + first, 0, num * sizeof(QFixed));
            memset(advances_y + first, 0, num * sizeof(QFixed));
            memset(justifications + first, 0, num * sizeof(QGlyphJustification));
            memset(attributes + first, 0, num * sizeof(HB_GlyphAttributes));
        }
    }

data()

char* QGlyphLayout::data ( )

inline

Definition at line 261 of file qtextengine_p.h.

Referenced by QTextEngine::LayoutData::reallocate(), and QTextItemIntCopy::~QTextItemIntCopy().

                        {
        return reinterpret_cast<char *>(offsets);
    }

effectiveAdvance()

QFixed QGlyphLayout::effectiveAdvance ( int  item ) const

inline

Definition at line 219 of file qtextengine_p.h.

Referenced by QFontEngineMac::boundingBox(), QProxyFontEngine::boundingBox(), QFontEngineWin::boundingBox(), QFontEngineDirectWrite::boundingBox(), QFontEngineQPF1::boundingBox(), QTextLine::cursorToX(), drawMenuText(), QPainter::drawText(), QTextLineItemIterator::getSelectionBounds(), QTextLineItemIterator::next(), QTextEngine::positionInLigature(), QTextEngine::shapeLine(), and QTextLine::xToCursor().

    { return (advances_x[item] + QFixed::fromFixed(justifications[item].space_18d6)) * !attributes[item].dontPrint; }

grow()

void QGlyphLayout::grow	(	char *	address,
		int	totalGlyphs
	)

Definition at line 2306 of file qtextengine.cpp.

Referenced by QTextEngine::LayoutData::reallocate().

{
    QGlyphLayout oldLayout(address, numGlyphs);
    QGlyphLayout newLayout(address, totalGlyphs);

    if (numGlyphs) {
        // move the existing data
        memmove(newLayout.attributes, oldLayout.attributes, numGlyphs * sizeof(HB_GlyphAttributes));
        memmove(newLayout.justifications, oldLayout.justifications, numGlyphs * sizeof(QGlyphJustification));
        memmove(newLayout.advances_y, oldLayout.advances_y, numGlyphs * sizeof(QFixed));
        memmove(newLayout.advances_x, oldLayout.advances_x, numGlyphs * sizeof(QFixed));
        memmove(newLayout.glyphs, oldLayout.glyphs, numGlyphs * sizeof(HB_Glyph));
    }

    // clear the new data
    newLayout.clear(numGlyphs);

    *this = newLayout;
}

instance()

QGlyphLayoutInstance QGlyphLayout::instance ( int  position ) const

inline

Definition at line 222 of file qtextengine_p.h.

Referenced by QFontEngineMulti::stringToCMap().

                                                             {
        QGlyphLayoutInstance g;
        g.offset.x = offsets[position].x;
        g.offset.y = offsets[position].y;
        g.glyph = glyphs[position];
        g.advance.x = advances_x[position];
        g.advance.y = advances_y[position];
        g.justification = justifications[position];
        g.attributes = attributes[position];
        return g;
    }

mid()

QGlyphLayout QGlyphLayout::mid ( int  position, int  n = -1  ) const

inline

Definition at line 198 of file qtextengine_p.h.

Referenced by QFontEngineMulti::addOutlineToPath(), QTextEngine::availableGlyphs(), QFontEngineMulti::boundingBox(), QTextEngine::boundingBox(), QFontEngineMulti::doKerning(), QTextLine::draw(), drawMenuText(), QTextLine::glyphs(), QTextEngine::justify(), QTextItemInt::midItem(), QFontEngineMulti::recalcAdvances(), QTextEngine::shapedGlyphs(), QTextEngine::shapeTextWithHarfbuzz(), QFontEngineMacMulti::stringToCMap(), QFontEngineMulti::stringToCMap(), and QTextEngine::tightBoundingBox().

                                                            {
        QGlyphLayout copy = *this;
        copy.glyphs += position;
        copy.advances_x += position;
        copy.advances_y += position;
        copy.offsets += position;
        copy.justifications += position;
        copy.attributes += position;
        if (n == -1)
            copy.numGlyphs -= position;
        else
            copy.numGlyphs = n;
        return copy;
    }

setInstance()

void QGlyphLayout::setInstance ( int  position, const QGlyphLayoutInstance &  g  )

inline

Definition at line 234 of file qtextengine_p.h.

Referenced by QFontEngineMulti::stringToCMap().

                                                                         {
        offsets[position].x = g.offset.x;
        offsets[position].y = g.offset.y;
        glyphs[position] = g.glyph;
        advances_x[position] = g.advance.x;
        advances_y[position] = g.advance.y;
        justifications[position] = g.justification;
        attributes[position] = g.attributes;
    }

spaceNeededForGlyphLayout()

static int QGlyphLayout::spaceNeededForGlyphLayout ( int  totalGlyphs )

inlinestatic

Definition at line 213 of file qtextengine_p.h.

Referenced by QTextEngine::LayoutData::LayoutData(), QTextItemIntCopy::QTextItemIntCopy(), and QTextEngine::LayoutData::reallocate().

                                                                 {
        return totalGlyphs * (sizeof(HB_Glyph) + sizeof(HB_GlyphAttributes)
                + sizeof(QFixed) + sizeof(QFixed) + sizeof(QFixedPoint)
                + sizeof(QGlyphJustification));
    }

Properties

advances_x

QFixed* QGlyphLayout::advances_x

Definition at line 173 of file qtextengine_p.h.

Referenced by QFontEngine::addBitmapFontToPath(), QFontEngine::addGlyphsToPath(), addNextCluster(), QFontEngineMulti::addOutlineToPath(), QRawFont::advancesForGlyphIndexes(), atsuPostLayoutCallback(), QFontEngineXLFD::boundingBox(), QTextEngine::calculateTabWidth(), QFontMetrics::charWidth(), QFontEngine::doKerning(), QPainterPrivate::drawGlyphs(), QTextEngine::elidedText(), QFontInfo::fixedPitch(), QFontEngine::getGlyphPositions(), QTextLine::glyphs(), grow(), heuristicSetGlyphAttributes(), mid(), moveGlyphData(), QTextEngine::offsetInLigature(), QTextItemIntCopy::QTextItemIntCopy(), QFontEngineMac::recalcAdvances(), QProxyFontEngine::recalcAdvances(), QFontEngineWin::recalcAdvances(), QFontEngineDirectWrite::recalcAdvances(), QFontEngineXLFD::recalcAdvances(), QFontEngineQPA::recalcAdvances(), QFontEngineQPF::recalcAdvances(), QFontEngineFT::recalcAdvances(), QFontEngineQPF1::recalcAdvances(), QFontEngineBox::recalcAdvances(), set(), QTextEngine::shapeText(), QTextEngine::shapeTextWithHarfbuzz(), QTextEngine::splitItem(), QFontEngineBox::stringToCMap(), QFontEngineMulti::stringToCMap(), QFontMetrics::width(), QFontMetricsF::width(), and QTextEngine::width().

advances_y

QFixed* QGlyphLayout::advances_y

Definition at line 174 of file qtextengine_p.h.

Referenced by QFontEngine::addBitmapFontToPath(), QFontEngine::addGlyphsToPath(), QFontEngineMulti::addOutlineToPath(), QRawFont::advancesForGlyphIndexes(), atsuPostLayoutCallback(), QPainterPrivate::drawGlyphs(), QFontEngine::getGlyphPositions(), QTextLine::glyphs(), grow(), heuristicSetGlyphAttributes(), mid(), QTextItemIntCopy::QTextItemIntCopy(), QFontEngineMac::recalcAdvances(), QProxyFontEngine::recalcAdvances(), QFontEngineWin::recalcAdvances(), QFontEngineDirectWrite::recalcAdvances(), QFontEngineQPA::recalcAdvances(), QFontEngineQPF::recalcAdvances(), QFontEngineFT::recalcAdvances(), QFontEngineQPF1::recalcAdvances(), QFontEngineBox::recalcAdvances(), QFontEngineBox::stringToCMap(), and QFontEngineMulti::stringToCMap().

attributes

HB_GlyphAttributes* QGlyphLayout::attributes

Definition at line 176 of file qtextengine_p.h.

Referenced by addNextCluster(), atsuPostLayoutCallback(), QTextEngine::calculateTabWidth(), QTextLine::cursorToX(), QPainterPrivate::drawGlyphs(), QTextEngine::elidedText(), QFontEngine::getGlyphPositions(), grow(), heuristicSetGlyphAttributes(), QTextEngine::justify(), mid(), moveGlyphData(), QTextLineItemIterator::next(), QTextItemIntCopy::QTextItemIntCopy(), QTextEngine::shapeText(), QTextEngine::shapeTextMac(), QTextEngine::shapeTextWithHarfbuzz(), QTextEngine::splitItem(), QTextEngine::width(), and QTextLine::xToCursor().

glyphs

HB_Glyph* QGlyphLayout::glyphs

Definition at line 172 of file qtextengine_p.h.

Referenced by QFontEngine::addBitmapFontToPath(), QFontEngine::addGlyphsToPath(), QFontEngineMulti::addOutlineToPath(), QRawFont::advancesForGlyphIndexes(), QFontEngineXLFD::alphaMapForGlyph(), atsuPostLayoutCallback(), QFontEngine::averageCharWidth(), QFontEngineXLFD::boundingBox(), QFontEngineQPA::boundingBox(), QFontEngineQPF::boundingBox(), QFontEngineFT::boundingBox(), QFontEngineMulti::boundingBox(), QFontMetrics::boundingRect(), QFontMetricsF::boundingRect(), QFontEngineXLFD::canRender(), QFontEngineMulti::canRender(), QFontEngine::doKerning(), QFontEngineMulti::doKerning(), QPainterPrivate::drawGlyphs(), QPainter::drawTextItem(), QTextEngine::elidedText(), QFontEngineQPF::ensureGlyphsLoaded(), QFontEngineWin::getGlyphIndexes(), QFontEngine::getGlyphPositions(), QFontSubset::getReverseMap(), QRawFont::glyphIndexesForChars(), QRawFont::glyphIndexesForString(), QTextLine::glyphs(), grow(), hb_getAdvances(), QFontEngine::lastRightBearing(), QFontMetrics::leftBearing(), QFontMetricsF::leftBearing(), mid(), QFontEngineFT::minRightBearing(), moveGlyphData(), QTextItemIntCopy::QTextItemIntCopy(), QFontEngineMac::recalcAdvances(), QProxyFontEngine::recalcAdvances(), QFontEngineWin::recalcAdvances(), QFontEngineDirectWrite::recalcAdvances(), QFontEngineXLFD::recalcAdvances(), QFontEngineQPA::recalcAdvances(), QFontEngineQPF::recalcAdvances(), QFontEngineFT::recalcAdvances(), QFontEngineQPF1::recalcAdvances(), QFontEngineMulti::recalcAdvances(), QFontMetrics::rightBearing(), QFontMetricsF::rightBearing(), set(), QTextEngine::shapeTextWithHarfbuzz(), QFontEngineMac::stringToCMap(), QProxyFontEngine::stringToCMap(), QFontEngineDirectWrite::stringToCMap(), QFontEngineXLFD::stringToCMap(), QFontEngineQPA::stringToCMap(), QFontEngineQPF::stringToCMap(), QFontEngineFT::stringToCMap(), QFontEngineQPF1::stringToCMap(), QFontEngineBox::stringToCMap(), QFontEngineMulti::stringToCMap(), QFontEngine::tightBoundingBox(), and QFontEngine::xHeight().

justifications

QGlyphJustification* QGlyphLayout::justifications

Definition at line 175 of file qtextengine_p.h.

Referenced by QFontEngineXLFD::boundingBox(), QPainterPrivate::drawGlyphs(), QFontEngine::getGlyphPositions(), grow(), QTextEngine::justify(), mid(), and QTextItemIntCopy::QTextItemIntCopy().

numGlyphs

int QGlyphLayout::numGlyphs

Definition at line 178 of file qtextengine_p.h.

Referenced by QFontEngine::addBitmapFontToPath(), QFontEngine::addOutlineToPath(), QFontEngineFT::addOutlineToPath(), QFontEngineBox::addOutlineToPath(), QFontEngineMulti::addOutlineToPath(), QRawFont::advancesForGlyphIndexes(), QFontEngineMac::boundingBox(), QProxyFontEngine::boundingBox(), QFontEngineWin::boundingBox(), QFontEngineDirectWrite::boundingBox(), QFontEngineXLFD::boundingBox(), QFontEngineQPA::boundingBox(), QFontEngineQPF::boundingBox(), QFontEngineFT::boundingBox(), QFontEngineQPF1::boundingBox(), QFontEngineBox::boundingBox(), QFontEngineMulti::boundingBox(), QFontEngine::doKerning(), QFontEngineMulti::doKerning(), QPaintEnginePrivate::drawBoxTextItem(), QX11PaintEngine::drawFreetype(), QPainterPrivate::drawGlyphs(), drawMenuText(), QPainter::drawText(), QCoreGraphicsPaintEngine::drawTextItem(), QPaintEngine::drawTextItem(), QX11PaintEngine::drawXLFD(), QFontEngineQPF::ensureGlyphsLoaded(), QFontEngineWin::getGlyphIndexes(), QFontEngine::getGlyphPositions(), QTextLine::glyphs(), QFontEngine::lastRightBearing(), mid(), QTextItemIntCopy::QTextItemIntCopy(), QTextEngine::LayoutData::reallocate(), QFontEngineMac::recalcAdvances(), QProxyFontEngine::recalcAdvances(), QFontEngineWin::recalcAdvances(), QFontEngineDirectWrite::recalcAdvances(), QFontEngineXLFD::recalcAdvances(), QFontEngineQPA::recalcAdvances(), QFontEngineQPF::recalcAdvances(), QFontEngineFT::recalcAdvances(), QFontEngineQPF1::recalcAdvances(), QFontEngineBox::recalcAdvances(), QFontEngineMulti::recalcAdvances(), QTextEngine::shapeTextMac(), QFontEngineMac::stringToCMap(), QProxyFontEngine::stringToCMap(), QFontEngineXLFD::stringToCMap(), QFontEngineMacMulti::stringToCMap(), QFontEngineQPA::stringToCMap(), QFontEngineQPF::stringToCMap(), QFontEngineFT::stringToCMap(), QFontEngineQPF1::stringToCMap(), QFontEngineBox::stringToCMap(), QFontEngineMulti::stringToCMap(), stringToGlyphs(), and QFontEngine::tightBoundingBox().

offsets

QFixedPoint* QGlyphLayout::offsets

Definition at line 171 of file qtextengine_p.h.

Referenced by QFontEngine::addBitmapFontToPath(), QFontEngineXLFD::boundingBox(), QFontEngineQPA::boundingBox(), QFontEngineQPF::boundingBox(), QFontEngineFT::boundingBox(), QPainterPrivate::drawGlyphs(), QFontEngine::getGlyphPositions(), mid(), moveGlyphData(), QTextItemIntCopy::QTextItemIntCopy(), QTextEngine::shapeTextWithHarfbuzz(), QFontEngineMulti::stringToCMap(), and QFontEngine::tightBoundingBox().

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The documentation for this struct was generated from the following files:

• /src/gui/text/qtextengine_p.h
• /src/gui/text/qtextengine.cpp