From 85f98acaa3a38079071bea711e43c9a86edec1f6 Mon Sep 17 00:00:00 2001 From: Trond Kjernaasen Date: Thu, 14 May 2009 17:38:56 +0200 Subject: Fixed an issue with text drawing under Windows. Some text drawn with OpenType fonts where cut off by a pixel or two under certain circumstances. This adds an additional 2 pixel pad margin to the glyph cache entries. The padding behaves slightly different when ClearType is enabled/disabled, hence the general 2 pixel padding. Task-number: 246196 Reviewed-by: Samuel --- src/gui/painting/qtextureglyphcache.cpp | 11 ++++------- src/gui/text/qfontengine_win.cpp | 6 +++--- 2 files changed, 7 insertions(+), 10 deletions(-) diff --git a/src/gui/painting/qtextureglyphcache.cpp b/src/gui/painting/qtextureglyphcache.cpp index 1ea40ba..3fd1ffb 100644 --- a/src/gui/painting/qtextureglyphcache.cpp +++ b/src/gui/painting/qtextureglyphcache.cpp @@ -88,11 +88,12 @@ void QTextureGlyphCache::populate(const QTextItemInt &ti, ti.ascent.toReal(), ti.descent.toReal()); #endif - int glyph_width = metrics.width.ceil().toInt() + margin * 2; - int glyph_height = metrics.height.ceil().toInt() + margin * 2; + int glyph_width = metrics.width.ceil().toInt(); + int glyph_height = metrics.height.ceil().toInt(); if (glyph_height == 0 || glyph_width == 0) continue; - + glyph_width += margin * 2 + 2; + glyph_height += margin * 2 + 2; // align to 8-bit boundary if (m_type == QFontEngineGlyphCache::Raster_Mono) glyph_width = (glyph_width+7)&~7; @@ -188,11 +189,7 @@ void QImageTextureGlyphCache::createTextureData(int width, int height) int QImageTextureGlyphCache::glyphMargin() const { -#ifdef Q_WS_MAC return 2; -#else - return m_type == QFontEngineGlyphCache::Raster_RGBMask ? 2 : 0; -#endif } void QImageTextureGlyphCache::fillTexture(const Coord &c, glyph_t g) diff --git a/src/gui/text/qfontengine_win.cpp b/src/gui/text/qfontengine_win.cpp index 1996d44..bf3a176 100644 --- a/src/gui/text/qfontengine_win.cpp +++ b/src/gui/text/qfontengine_win.cpp @@ -1406,8 +1406,8 @@ QNativeImage *QFontEngineWin::drawGDIGlyph(HFONT font, glyph_t glyph, int margin #endif #endif - QNativeImage *ni = new QNativeImage(iw + 2 * margin, - ih + 2 * margin, + QNativeImage *ni = new QNativeImage(iw + 2 * margin + 2, + ih + 2 * margin + 2, QNativeImage::systemFormat(), true); ni->image.fill(0xffffffff); @@ -1449,7 +1449,7 @@ QImage QFontEngineWin::alphaMapForGlyph(glyph_t glyph, const QTransform &xform) font = CreateFontIndirectW(&lf); } - QNativeImage *mask = drawGDIGlyph(font, glyph, 0, xform); + QNativeImage *mask = drawGDIGlyph(font, glyph, 2, xform); if (mask == 0) return QImage(); -- cgit v0.12