diff options
Diffstat (limited to 'src/plugins/platforms/windows/qwindowsfontenginedirectwrite.cpp')
| -rw-r--r-- | src/plugins/platforms/windows/qwindowsfontenginedirectwrite.cpp | 103 |
1 files changed, 102 insertions, 1 deletions
diff --git a/src/plugins/platforms/windows/qwindowsfontenginedirectwrite.cpp b/src/plugins/platforms/windows/qwindowsfontenginedirectwrite.cpp index 49eb7cfdec..ec73a4c065 100644 --- a/src/plugins/platforms/windows/qwindowsfontenginedirectwrite.cpp +++ b/src/plugins/platforms/windows/qwindowsfontenginedirectwrite.cpp @@ -46,6 +46,7 @@ #include <QtCore/QSettings> #include <QtCore/QtEndian> #include <QtCore/QVarLengthArray> +#include <QtCore/QFile> #include <private/qstringiterator_p.h> #include <QtCore/private/qsystemlibrary_p.h> @@ -208,6 +209,7 @@ QWindowsFontEngineDirectWrite::QWindowsFontEngineDirectWrite(IDWriteFontFace *di , m_lineThickness(-1) , m_unitsPerEm(-1) , m_ascent(-1) + , m_capHeight(-1) , m_descent(-1) , m_xHeight(-1) , m_lineGap(-1) @@ -235,6 +237,82 @@ QWindowsFontEngineDirectWrite::~QWindowsFontEngineDirectWrite() m_directWriteBitmapRenderTarget->Release(); } +#ifndef Q_CC_MINGW +typedef IDWriteLocalFontFileLoader QIdWriteLocalFontFileLoader; + +static UUID uuidIdWriteLocalFontFileLoader() +{ + return __uuidof(IDWriteLocalFontFileLoader); +} +#else // !Q_CC_MINGW +DECLARE_INTERFACE_(QIdWriteLocalFontFileLoader, IDWriteFontFileLoader) +{ + STDMETHOD(GetFilePathLengthFromKey)(THIS_ void const *, UINT32, UINT32*) PURE; + STDMETHOD(GetFilePathFromKey)(THIS_ void const *, UINT32, WCHAR *, UINT32) PURE; + STDMETHOD(GetLastWriteTimeFromKey)(THIS_ void const *, UINT32, FILETIME *) PURE; +}; + +static UUID uuidIdWriteLocalFontFileLoader() +{ + static const UUID result = { 0xb2d9f3ec, 0xc9fe, 0x4a11, {0xa2, 0xec, 0xd8, 0x62, 0x8, 0xf7, 0xc0, 0xa2}}; + return result; +} +#endif // Q_CC_MINGW + +QString QWindowsFontEngineDirectWrite::filenameFromFontFile(IDWriteFontFile *fontFile) +{ + IDWriteFontFileLoader *loader = Q_NULLPTR; + + HRESULT hr = fontFile->GetLoader(&loader); + if (FAILED(hr)) { + qErrnoWarning("%s: GetLoader failed", __FUNCTION__); + return QString(); + } + + QIdWriteLocalFontFileLoader *localLoader = Q_NULLPTR; + hr = loader->QueryInterface(uuidIdWriteLocalFontFileLoader(), + reinterpret_cast<void **>(&localLoader)); + + const void *fontFileReferenceKey = Q_NULLPTR; + UINT32 fontFileReferenceKeySize = 0; + if (SUCCEEDED(hr)) { + hr = fontFile->GetReferenceKey(&fontFileReferenceKey, + &fontFileReferenceKeySize); + if (FAILED(hr)) + qErrnoWarning(hr, "%s: GetReferenceKey failed", __FUNCTION__); + } + + UINT32 filePathLength = 0; + if (SUCCEEDED(hr)) { + hr = localLoader->GetFilePathLengthFromKey(fontFileReferenceKey, + fontFileReferenceKeySize, + &filePathLength); + if (FAILED(hr)) + qErrnoWarning(hr, "GetFilePathLength failed", __FUNCTION__); + } + + QString ret; + if (SUCCEEDED(hr) && filePathLength > 0) { + QVarLengthArray<wchar_t> filePath(filePathLength + 1); + + hr = localLoader->GetFilePathFromKey(fontFileReferenceKey, + fontFileReferenceKeySize, + filePath.data(), + filePathLength + 1); + if (FAILED(hr)) + qErrnoWarning(hr, "%s: GetFilePathFromKey failed", __FUNCTION__); + else + ret = QString::fromWCharArray(filePath.data()); + } + + if (localLoader != Q_NULLPTR) + localLoader->Release(); + + if (loader != Q_NULLPTR) + loader->Release(); + return ret; +} + void QWindowsFontEngineDirectWrite::collectMetrics() { DWRITE_FONT_METRICS metrics; @@ -244,10 +322,18 @@ void QWindowsFontEngineDirectWrite::collectMetrics() m_lineThickness = DESIGN_TO_LOGICAL(metrics.underlineThickness); m_ascent = DESIGN_TO_LOGICAL(metrics.ascent); + m_capHeight = DESIGN_TO_LOGICAL(metrics.capHeight); m_descent = DESIGN_TO_LOGICAL(metrics.descent); m_xHeight = DESIGN_TO_LOGICAL(metrics.xHeight); m_lineGap = DESIGN_TO_LOGICAL(metrics.lineGap); m_underlinePosition = DESIGN_TO_LOGICAL(metrics.underlinePosition); + + IDWriteFontFile *fontFile = Q_NULLPTR; + UINT32 numberOfFiles = 1; + if (SUCCEEDED(m_directWriteFontFace->GetFiles(&numberOfFiles, &fontFile))) { + m_faceId.filename = QFile::encodeName(filenameFromFontFile(fontFile)); + fontFile->Release(); + } } QFixed QWindowsFontEngineDirectWrite::underlinePosition() const @@ -349,6 +435,11 @@ bool QWindowsFontEngineDirectWrite::stringToCMap(const QChar *str, int len, QGly return true; } +QFontEngine::FaceId QWindowsFontEngineDirectWrite::faceId() const +{ + return m_faceId; +} + void QWindowsFontEngineDirectWrite::recalcAdvances(QGlyphLayout *glyphs, QFontEngine::ShaperFlags) const { QVarLengthArray<UINT16> glyphIndices(glyphs->numGlyphs); @@ -362,7 +453,7 @@ void QWindowsFontEngineDirectWrite::recalcAdvances(QGlyphLayout *glyphs, QFontEn glyphIndices.size(), glyphMetrics.data()); if (SUCCEEDED(hr)) { - qreal stretch = fontDef.stretch / 100.0; + qreal stretch = fontDef.stretch != QFont::AnyStretch ? fontDef.stretch / 100.0 : 1.0; for (int i = 0; i < glyphs->numGlyphs; ++i) glyphs->advances[i] = DESIGN_TO_LOGICAL(glyphMetrics[i].advanceWidth * stretch); if (fontDef.styleStrategy & QFont::ForceIntegerMetrics) { @@ -462,6 +553,16 @@ QFixed QWindowsFontEngineDirectWrite::ascent() const : m_ascent; } +QFixed QWindowsFontEngineDirectWrite::capHeight() const +{ + if (m_capHeight <= 0) + return calculatedCapHeight(); + + return fontDef.styleStrategy & QFont::ForceIntegerMetrics + ? m_capHeight.round() + : m_capHeight; +} + QFixed QWindowsFontEngineDirectWrite::descent() const { return fontDef.styleStrategy & QFont::ForceIntegerMetrics |