diff options
| author | Jørgen Lind <jorgen.lind@digia.com> | 2014-05-06 10:17:51 +0200 |
|---|---|---|
| committer | The Qt Project <gerrit-noreply@qt-project.org> | 2014-05-06 16:35:56 +0200 |
| commit | 2bc619c30ef08c9b5e2aaa3370d184670acd73ad (patch) | |
| tree | 21985f2ee0704a0f8fb4d8eb3e1d028ee0fda5ef /src/plugins/platforms/windows/qwindowsfontengine.cpp | |
| parent | c76d8c42b2fd87f620a4ea47a5c4134a084e4142 (diff) | |
Add virtual function to QFontEngine report if outlines are reliable
GetGlyphOutline fails for ttf fonts with embedded bitmaps. This results in
distancefield rendering not rendering glyphs (for the failed paths). We
need to fall back to texture rendering if this is the case.
Change-Id: Ibdf7dc5c1d34f513c436f88fabbdcc4089bb6fef
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Diffstat (limited to 'src/plugins/platforms/windows/qwindowsfontengine.cpp')
| -rw-r--r-- | src/plugins/platforms/windows/qwindowsfontengine.cpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowsfontengine.cpp b/src/plugins/platforms/windows/qwindowsfontengine.cpp index 29c43fc7a5..6f97c8584b 100644 --- a/src/plugins/platforms/windows/qwindowsfontengine.cpp +++ b/src/plugins/platforms/windows/qwindowsfontengine.cpp @@ -169,6 +169,20 @@ bool QWindowsFontEngine::hasCMapTable() const return GetFontData(hdc, MAKE_TAG('c', 'm', 'a', 'p'), 0, 0, 0) != GDI_ERROR; } +bool QWindowsFontEngine::hasGlyfTable() const +{ + HDC hdc = m_fontEngineData->hdc; + SelectObject(hdc, hfont); + return GetFontData(hdc, MAKE_TAG('g', 'l', 'y', 'f'), 0, 0, 0) != GDI_ERROR; +} + +bool QWindowsFontEngine::hasEbdtTable() const +{ + HDC hdc = m_fontEngineData->hdc; + SelectObject(hdc, hfont); + return GetFontData(hdc, MAKE_TAG('E', 'B', 'D', 'T'), 0, 0, 0) != GDI_ERROR; +} + void QWindowsFontEngine::getCMap() { ttf = (bool)(tm.tmPitchAndFamily & TMPF_TRUETYPE) || hasCMapTable(); @@ -308,6 +322,8 @@ QWindowsFontEngine::QWindowsFontEngine(const QString &name, userData.insert(QStringLiteral("hFont"), QVariant::fromValue(hfont)); userData.insert(QStringLiteral("trueType"), QVariant(bool(ttf))); setUserData(userData); + + hasUnreliableOutline = hasGlyfTable() && hasEbdtTable(); } QWindowsFontEngine::~QWindowsFontEngine() @@ -662,6 +678,11 @@ void QWindowsFontEngine::getGlyphBearings(glyph_t glyph, qreal *leftBearing, qre } #endif // Q_CC_MINGW +bool QWindowsFontEngine::hasUnreliableGlyphOutline() const +{ + return hasUnreliableOutline; +} + qreal QWindowsFontEngine::minLeftBearing() const { if (lbearing == SHRT_MIN) |