diff options
Diffstat (limited to 'src/gui/text/qtextengine.cpp')
-rw-r--r-- | src/gui/text/qtextengine.cpp | 174 |
1 files changed, 120 insertions, 54 deletions
diff --git a/src/gui/text/qtextengine.cpp b/src/gui/text/qtextengine.cpp index c63f0fede8..a95e61342d 100644 --- a/src/gui/text/qtextengine.cpp +++ b/src/gui/text/qtextengine.cpp @@ -53,6 +53,8 @@ #include "qstring.h" #include <private/qunicodetables_p.h> #include "qtextdocument_p.h" +#include "qrawfont.h" +#include "qrawfont_p.h" #include <qguiapplication.h> #include <qinputmethod.h> #include <stdlib.h> @@ -60,6 +62,8 @@ QT_BEGIN_NAMESPACE +static const float smallCapsFraction = 0.7; + namespace { // Helper class used in QTextEngine::itemize // keep it out here to allow us to keep supporting various compilers. @@ -900,13 +904,25 @@ void QTextEngine::shapeText(int item) const return; QGlyphLayout glyphs = shapedGlyphs(&si); - QFont font = this->font(si); - bool letterSpacingIsAbsolute = font.d->letterSpacingIsAbsolute; - QFixed letterSpacing = font.d->letterSpacing; - QFixed wordSpacing = font.d->wordSpacing; + bool letterSpacingIsAbsolute; + QFixed letterSpacing, wordSpacing; +#ifndef QT_NO_RAWFONT + if (useRawFont) { + QTextCharFormat f = format(&si); + wordSpacing = QFixed::fromReal(f.fontWordSpacing()); + letterSpacing = QFixed::fromReal(f.fontLetterSpacing()); + letterSpacingIsAbsolute = true; + } else +#endif + { + QFont font = this->font(si); + letterSpacingIsAbsolute = font.d->letterSpacingIsAbsolute; + letterSpacing = font.d->letterSpacing; + wordSpacing = font.d->wordSpacing; - if (letterSpacingIsAbsolute && letterSpacing.value()) - letterSpacing *= font.d->dpi / qt_defaultDpiY(); + if (letterSpacingIsAbsolute && letterSpacing.value()) + letterSpacing *= font.d->dpi / qt_defaultDpiY(); + } if (letterSpacing != 0) { for (int i = 1; i < si.num_glyphs; ++i) { @@ -973,7 +989,14 @@ void QTextEngine::shapeTextWithHarfbuzz(int item) const QFontEngine *font = fontEngine(si, &si.ascent, &si.descent, &si.leading); - bool kerningEnabled = this->font(si).d->kerning; + bool kerningEnabled; +#ifndef QT_NO_RAWFONT + if (useRawFont) { + QTextCharFormat f = format(&si); + kerningEnabled = f.fontKerning(); + } else +#endif + kerningEnabled = this->font(si).d->kerning; HB_ShaperItem entire_shaper_item; qMemSet(&entire_shaper_item, 0, sizeof(entire_shaper_item)); @@ -1159,6 +1182,9 @@ static void init(QTextEngine *e) e->underlinePositions = 0; e->specialData = 0; e->stackEngine = false; +#ifndef QT_NO_RAWFONT + e->useRawFont = false; +#endif } QTextEngine::QTextEngine() @@ -1401,7 +1427,21 @@ void QTextEngine::itemize() const ++it; } } else { - itemizer.generate(0, length, static_cast<QFont::Capitalization> (fnt.d->capital)); +#ifndef QT_NO_RAWFONT + if (useRawFont && specialData) { + int lastIndex = 0; + for (int i = 0; i < specialData->addFormats.size(); ++i) { + const QTextLayout::FormatRange &range = specialData->addFormats.at(i); + if (range.format.fontCapitalization()) { + itemizer.generate(lastIndex, range.start - lastIndex, QFont::MixedCase); + itemizer.generate(range.start, range.length, range.format.fontCapitalization()); + lastIndex = range.start + range.length; + } + } + itemizer.generate(lastIndex, length - lastIndex, QFont::MixedCase); + } else +#endif + itemizer.generate(0, length, static_cast<QFont::Capitalization> (fnt.d->capital)); } addRequiredBoundaries(); @@ -1663,59 +1703,85 @@ QFontEngine *QTextEngine::fontEngine(const QScriptItem &si, QFixed *ascent, QFix int script = si.analysis.script; QFont font = fnt; - if (hasFormats()) { - if (feCache.prevFontEngine && feCache.prevPosition == si.position && feCache.prevLength == length(&si) && feCache.prevScript == script) { +#ifndef QT_NO_RAWFONT + if (useRawFont && rawFont.isValid()) { + if (feCache.prevFontEngine && feCache.prevFontEngine->type() == QFontEngine::Multi && feCache.prevScript == script) { engine = feCache.prevFontEngine; - scaledEngine = feCache.prevScaledFontEngine; } else { - QTextCharFormat f = format(&si); - font = f.font(); - - if (block.docHandle() && block.docHandle()->layout()) { - // Make sure we get the right dpi on printers - QPaintDevice *pdev = block.docHandle()->layout()->paintDevice(); - if (pdev) - font = QFont(font, pdev); - } else { - font = font.resolve(fnt); - } - engine = font.d->engineForScript(script); - QTextCharFormat::VerticalAlignment valign = f.verticalAlignment(); - if (valign == QTextCharFormat::AlignSuperScript || valign == QTextCharFormat::AlignSubScript) { - if (font.pointSize() != -1) - font.setPointSize((font.pointSize() * 2) / 3); - else - font.setPixelSize((font.pixelSize() * 2) / 3); - scaledEngine = font.d->engineForScript(script); - } + engine = QFontDatabase::findFont(script, /*fontPrivate*/0, rawFont.d->fontEngine->fontDef, true); feCache.prevFontEngine = engine; - if (engine) - engine->ref.ref(); - feCache.prevScaledFontEngine = scaledEngine; - if (scaledEngine) - scaledEngine->ref.ref(); feCache.prevScript = script; - feCache.prevPosition = si.position; - feCache.prevLength = length(&si); + engine->ref.ref(); + if (feCache.prevScaledFontEngine) + releaseCachedFontEngine(feCache.prevScaledFontEngine); } - } else { - if (feCache.prevFontEngine && feCache.prevScript == script && feCache.prevPosition == -1) - engine = feCache.prevFontEngine; - else { - engine = font.d->engineForScript(script); - feCache.prevFontEngine = engine; - if (engine) - engine->ref.ref(); - feCache.prevScript = script; - feCache.prevPosition = -1; - feCache.prevLength = -1; - feCache.prevScaledFontEngine = 0; + if (si.analysis.flags & QFont::SmallCaps) { + if (feCache.prevScaledFontEngine) { + scaledEngine = feCache.prevScaledFontEngine; + } else { + QFontEngine *scEngine = rawFont.d->fontEngine->cloneWithSize(smallCapsFraction * rawFont.pixelSize()); + scaledEngine = QFontDatabase::findFont(script, /*fontPrivate*/0, scEngine->fontDef, true); + scaledEngine->ref.ref(); + feCache.prevScaledFontEngine = scaledEngine; + } + } + } else +#endif + { + if (hasFormats()) { + if (feCache.prevFontEngine && feCache.prevPosition == si.position && feCache.prevLength == length(&si) && feCache.prevScript == script) { + engine = feCache.prevFontEngine; + scaledEngine = feCache.prevScaledFontEngine; + } else { + QTextCharFormat f = format(&si); + font = f.font(); + + if (block.docHandle() && block.docHandle()->layout()) { + // Make sure we get the right dpi on printers + QPaintDevice *pdev = block.docHandle()->layout()->paintDevice(); + if (pdev) + font = QFont(font, pdev); + } else { + font = font.resolve(fnt); + } + engine = font.d->engineForScript(script); + QTextCharFormat::VerticalAlignment valign = f.verticalAlignment(); + if (valign == QTextCharFormat::AlignSuperScript || valign == QTextCharFormat::AlignSubScript) { + if (font.pointSize() != -1) + font.setPointSize((font.pointSize() * 2) / 3); + else + font.setPixelSize((font.pixelSize() * 2) / 3); + scaledEngine = font.d->engineForScript(script); + } + feCache.prevFontEngine = engine; + if (engine) + engine->ref.ref(); + feCache.prevScaledFontEngine = scaledEngine; + if (scaledEngine) + scaledEngine->ref.ref(); + feCache.prevScript = script; + feCache.prevPosition = si.position; + feCache.prevLength = length(&si); + } + } else { + if (feCache.prevFontEngine && feCache.prevScript == script && feCache.prevPosition == -1) + engine = feCache.prevFontEngine; + else { + engine = font.d->engineForScript(script); + feCache.prevFontEngine = engine; + if (engine) + engine->ref.ref(); + feCache.prevScript = script; + feCache.prevPosition = -1; + feCache.prevLength = -1; + feCache.prevScaledFontEngine = 0; + } } - } - if (si.analysis.flags == QScriptAnalysis::SmallCaps) { - QFontPrivate *p = font.d->smallCapsFontPrivate(); - scaledEngine = p->engineForScript(script); + if (si.analysis.flags == QScriptAnalysis::SmallCaps) { + QFontPrivate *p = font.d->smallCapsFontPrivate(); + scaledEngine = p->engineForScript(script); + } } if (ascent) { |