C++ (Cpp) QFixed::round示例

示例#1

文件： qfontenginedirectwrite.cpp 项目： KDE/android-qt

glyph_metrics_t QFontEngineDirectWrite::boundingBox(glyph_t g)
{
    if (m_directWriteFontFace == 0)
        return glyph_metrics_t();

    UINT16 glyphIndex = g;

    DWRITE_GLYPH_METRICS glyphMetrics;
    HRESULT hr = m_directWriteFontFace->GetDesignGlyphMetrics(&glyphIndex, 1, &glyphMetrics);
    if (SUCCEEDED(hr)) {
        QFixed advanceWidth = DESIGN_TO_LOGICAL(glyphMetrics.advanceWidth);
        QFixed leftSideBearing = DESIGN_TO_LOGICAL(glyphMetrics.leftSideBearing);
        QFixed rightSideBearing = DESIGN_TO_LOGICAL(glyphMetrics.rightSideBearing);
        QFixed advanceHeight = DESIGN_TO_LOGICAL(glyphMetrics.advanceHeight);
        QFixed verticalOriginY = DESIGN_TO_LOGICAL(glyphMetrics.verticalOriginY);

        if (fontDef.styleStrategy & QFont::ForceIntegerMetrics) {
            advanceWidth = advanceWidth.round();
            advanceHeight = advanceHeight.round();
        }

        QFixed width = advanceWidth - leftSideBearing - rightSideBearing;

        return glyph_metrics_t(-leftSideBearing, -verticalOriginY,
                               width, m_ascent + m_descent,
                               advanceWidth, advanceHeight);
    } else {
        qErrnoWarning("QFontEngineDirectWrite::boundingBox: GetDesignGlyphMetrics failed");
    }

    return glyph_metrics_t();
}

示例#2

文件： qwindowsfontenginedirectwrite.cpp 项目： 3163504123/phantomjs

glyph_metrics_t QWindowsFontEngineDirectWrite::boundingBox(glyph_t g)
{
    UINT16 glyphIndex = g;

    DWRITE_GLYPH_METRICS glyphMetrics;
    HRESULT hr = m_directWriteFontFace->GetDesignGlyphMetrics(&glyphIndex, 1, &glyphMetrics);
    if (SUCCEEDED(hr)) {
        QFixed advanceWidth = DESIGN_TO_LOGICAL(glyphMetrics.advanceWidth);
        QFixed leftSideBearing = DESIGN_TO_LOGICAL(glyphMetrics.leftSideBearing);
        QFixed rightSideBearing = DESIGN_TO_LOGICAL(glyphMetrics.rightSideBearing);
        QFixed advanceHeight = DESIGN_TO_LOGICAL(glyphMetrics.advanceHeight);
        QFixed verticalOriginY = DESIGN_TO_LOGICAL(glyphMetrics.verticalOriginY);
        QFixed topSideBearing = DESIGN_TO_LOGICAL(glyphMetrics.topSideBearing);
        QFixed bottomSideBearing = DESIGN_TO_LOGICAL(glyphMetrics.bottomSideBearing);

        if (fontDef.styleStrategy & QFont::ForceIntegerMetrics) {
            advanceWidth = advanceWidth.round();
            advanceHeight = advanceHeight.round();
        }

        QFixed width = advanceWidth - leftSideBearing - rightSideBearing;
        QFixed height = advanceHeight - topSideBearing - bottomSideBearing;
        return glyph_metrics_t(leftSideBearing,
                               -verticalOriginY + topSideBearing,
                               width,
                               height,
                               advanceWidth,
                               advanceHeight);
    } else {
        qErrnoWarning("%s: GetDesignGlyphMetrics failed", __FUNCTION__);
    }

    return glyph_metrics_t();
}