コード例 #1
0
    // IDWriteTextRenderer methods
    virtual HRESULT STDMETHODCALLTYPE DrawGlyphRun(
        void* clientDrawingContext,
        FLOAT baselineOriginX,
        FLOAT baselineOriginY,
        DWRITE_MEASURING_MODE measuringMode,
        DWRITE_GLYPH_RUN const* glyphRun,
        DWRITE_GLYPH_RUN_DESCRIPTION const* glyphRunDescription,
        IUnknown* clientDrawingEffect) override
    {
        SkTScopedComPtr<IDWriteFont> font;
        HRM(fOuter->fFontCollection->GetFontFromFontFace(glyphRun->fontFace, &font),
            "Could not get font from font face.");

        // It is possible that the font passed does not actually have the requested character,
        // due to no font being found and getting the fallback font.
        // Check that the font actually contains the requested character.
        BOOL exists;
        HRM(font->HasCharacter(fCharacter, &exists), "Could not find character.");

        if (exists) {
            SkTScopedComPtr<IDWriteFontFamily> fontFamily;
            HRM(font->GetFontFamily(&fontFamily), "Could not get family.");
            fResolvedTypeface = fOuter->createTypefaceFromDWriteFont(glyphRun->fontFace,
                                                                     font.get(),
                                                                     fontFamily.get());
        }

        return S_OK;
    }
コード例 #2
0
static HRESULT are_same(IUnknown* a, IUnknown* b, bool& same) {
    SkTScopedComPtr<IUnknown> iunkA;
    HRM(a->QueryInterface(&iunkA), "Failed to QI<IUnknown> for a.");

    SkTScopedComPtr<IUnknown> iunkB;
    HRM(b->QueryInterface(&iunkB), "Failed to QI<IUnknown> for b.");

    same = (iunkA.get() == iunkB.get());
    return S_OK;
}
コード例 #3
0
HRESULT SkScalerContext_DW::getBoundingBox(SkGlyph* glyph,
        DWRITE_RENDERING_MODE renderingMode,
        DWRITE_TEXTURE_TYPE textureType,
        RECT* bbox)
{
    //Measure raster size.
    fXform.dx = SkFixedToFloat(glyph->getSubXFixed());
    fXform.dy = SkFixedToFloat(glyph->getSubYFixed());

    FLOAT advance = 0;

    UINT16 glyphId = glyph->getGlyphID();

    DWRITE_GLYPH_OFFSET offset;
    offset.advanceOffset = 0.0f;
    offset.ascenderOffset = 0.0f;

    DWRITE_GLYPH_RUN run;
    run.glyphCount = 1;
    run.glyphAdvances = &advance;
    run.fontFace = fTypeface->fDWriteFontFace.get();
    run.fontEmSize = SkScalarToFloat(fTextSizeRender);
    run.bidiLevel = 0;
    run.glyphIndices = &glyphId;
    run.isSideways = FALSE;
    run.glyphOffsets = &offset;

    SkTScopedComPtr<IDWriteGlyphRunAnalysis> glyphRunAnalysis;
    {
        SkAutoExclusive l(DWriteFactoryMutex);
        HRM(fTypeface->fFactory->CreateGlyphRunAnalysis(
                &run,
                1.0f, // pixelsPerDip,
                &fXform,
                renderingMode,
                fMeasuringMode,
                0.0f, // baselineOriginX,
                0.0f, // baselineOriginY,
                &glyphRunAnalysis),
            "Could not create glyph run analysis.");
    }
    {
        Shared l(DWriteFactoryMutex);
        HRM(glyphRunAnalysis->GetAlphaTextureBounds(textureType, bbox),
            "Could not get texture bounds.");
    }
    return S_OK;
}
コード例 #4
0
HRESULT SkFontMgr_DirectWrite::getDefaultFontFamily(IDWriteFontFamily** fontFamily) const {
    NONCLIENTMETRICSW metrics;
    metrics.cbSize = sizeof(metrics);
    if (0 == SystemParametersInfoW(SPI_GETNONCLIENTMETRICS, sizeof(metrics), &metrics, 0)) {
        return E_UNEXPECTED;
    }
    HRM(this->getByFamilyName(metrics.lfMessageFont.lfFaceName, fontFamily),
        "Could not create DWrite font family from LOGFONT.");
    return S_OK;
}