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C++ gfxMatrix::HasOnlyIntegerTranslation方法代码示例

本文整理汇总了C++中gfxMatrix::HasOnlyIntegerTranslation方法的典型用法代码示例。如果您正苦于以下问题:C++ gfxMatrix::HasOnlyIntegerTranslation方法的具体用法?C++ gfxMatrix::HasOnlyIntegerTranslation怎么用?C++ gfxMatrix::HasOnlyIntegerTranslation使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在gfxMatrix的用法示例。


在下文中一共展示了gfxMatrix::HasOnlyIntegerTranslation方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: gfxPattern

bool
gfxSurfaceDrawable::Draw(gfxContext* aContext,
                         const gfxRect& aFillRect,
                         bool aRepeat,
                         const GraphicsFilter& aFilter,
                         const gfxMatrix& aTransform)
{
    nsRefPtr<gfxPattern> pattern = new gfxPattern(mSurface);
    if (aRepeat) {
        pattern->SetExtend(gfxPattern::EXTEND_REPEAT);
        pattern->SetFilter(aFilter);
    } else {
        GraphicsFilter filter = aFilter;
        if (aContext->CurrentMatrix().HasOnlyIntegerTranslation() &&
            aTransform.HasOnlyIntegerTranslation())
        {
          // If we only have integer translation, no special filtering needs to
          // happen and we explicitly use FILTER_FAST. This is fast for some
          // backends.
          filter = GraphicsFilter::FILTER_FAST;
        }
        nsRefPtr<gfxASurface> currentTarget = aContext->CurrentSurface();
        gfxMatrix deviceSpaceToImageSpace =
            DeviceToImageTransform(aContext, aTransform);
        PreparePatternForUntiledDrawing(pattern, deviceSpaceToImageSpace,
                                        currentTarget, filter);
    }
    pattern->SetMatrix(gfxMatrix(aTransform).Multiply(mTransform));
    aContext->NewPath();
    aContext->SetPattern(pattern);
    aContext->Rectangle(aFillRect);
    aContext->Fill();
    return true;
}
开发者ID:jinevening,项目名称:releases-mozilla-central,代码行数:34,代码来源:gfxDrawable.cpp

示例2: gfxPattern

bool
gfxSurfaceDrawable::Draw(gfxContext* aContext,
                         const gfxRect& aFillRect,
                         bool aRepeat,
                         const GraphicsFilter& aFilter,
                         const gfxMatrix& aTransform)
{
    nsRefPtr<gfxPattern> pattern;
    if (mDrawTarget) {
        if (aContext->IsCairo()) {
            nsRefPtr<gfxASurface> source =
                gfxPlatform::GetPlatform()->GetThebesSurfaceForDrawTarget(mDrawTarget);
            pattern = new gfxPattern(source);
        } else {
            RefPtr<SourceSurface> source = mDrawTarget->Snapshot();
            pattern = new gfxPattern(source, Matrix());
        }
    } else if (mSourceSurface) {
        pattern = new gfxPattern(mSourceSurface, Matrix());
    } else {
        pattern = new gfxPattern(mSurface);
    }
    if (aRepeat) {
        pattern->SetExtend(gfxPattern::EXTEND_REPEAT);
        pattern->SetFilter(aFilter);
    } else {
        GraphicsFilter filter = aFilter;
        if (aContext->CurrentMatrix().HasOnlyIntegerTranslation() &&
                aTransform.HasOnlyIntegerTranslation())
        {
            // If we only have integer translation, no special filtering needs to
            // happen and we explicitly use FILTER_FAST. This is fast for some
            // backends.
            filter = GraphicsFilter::FILTER_FAST;
        }
        nsRefPtr<gfxASurface> currentTarget = aContext->CurrentSurface();
        gfxMatrix deviceSpaceToImageSpace =
            DeviceToImageTransform(aContext, aTransform);
        PreparePatternForUntiledDrawing(pattern, deviceSpaceToImageSpace,
                                        currentTarget, filter);
    }
    pattern->SetMatrix(gfxMatrix(aTransform).Multiply(mTransform));
    aContext->NewPath();
    aContext->SetPattern(pattern);
    aContext->Rectangle(aFillRect);
    aContext->Fill();
    // clear the pattern so that the snapshot is released before the
    // drawable is destroyed
    aContext->SetDeviceColor(gfxRGBA(0.0, 0.0, 0.0, 0.0));
    return true;
}
开发者ID:,项目名称:,代码行数:51,代码来源:


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