当前位置: 首页>>代码示例>>C++>>正文


C++ FloatRect::shiftMaxYEdgeTo方法代码示例

本文整理汇总了C++中FloatRect::shiftMaxYEdgeTo方法的典型用法代码示例。如果您正苦于以下问题:C++ FloatRect::shiftMaxYEdgeTo方法的具体用法?C++ FloatRect::shiftMaxYEdgeTo怎么用?C++ FloatRect::shiftMaxYEdgeTo使用的例子?那么, 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FloatRect的用法示例。


在下文中一共展示了FloatRect::shiftMaxYEdgeTo方法的1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: paintCharacter

LayoutRect RenderMathMLOperator::paintCharacter(PaintInfo& info, UChar character, const LayoutPoint& origin, CharacterPaintTrimming trim)
{
    GlyphData data = style()->font().glyphDataForCharacter(character, false);
    FloatRect glyphBounds = data.fontData->boundsForGlyph(data.glyph);

    LayoutRect glyphPaintRect(origin, LayoutSize(glyphBounds.x() + glyphBounds.width(), glyphBounds.height()));
    glyphPaintRect.setY(origin.y() + glyphBounds.y());

    // In order to have glyphs fit snugly with one another we snap the connecting edges to pixel boundaries
    // and trim off one pixel. The pixel trim is to account for fonts that have edge pixels that have less
    // than full coverage. These edge pixels can introduce small seams between connected glyphs
    FloatRect clipBounds = info.rect;
    switch (trim) {
    case TrimTop:
        glyphPaintRect.shiftYEdgeTo(glyphPaintRect.y().ceil() + 1);
        clipBounds.shiftYEdgeTo(glyphPaintRect.y());
        break;
    case TrimBottom:
        glyphPaintRect.shiftMaxYEdgeTo(glyphPaintRect.maxY().floor() - 1);
        clipBounds.shiftMaxYEdgeTo(glyphPaintRect.maxY());
        break;
    case TrimTopAndBottom:
        LayoutUnit temp = glyphPaintRect.y() + 1;
        glyphPaintRect.shiftYEdgeTo(temp.ceil());
        glyphPaintRect.shiftMaxYEdgeTo(glyphPaintRect.maxY().floor() - 1);
        clipBounds.shiftYEdgeTo(glyphPaintRect.y());
        clipBounds.shiftMaxYEdgeTo(glyphPaintRect.maxY());
        break;
    }

    // Clipping the enclosing IntRect avoids any potential issues at joined edges.
    GraphicsContextStateSaver stateSaver(*info.context);
    info.context->clip(clipBounds);

    info.context->drawText(style()->font(), TextRun(&character, 1), origin);

    return glyphPaintRect;
}
开发者ID:,项目名称:,代码行数:38,代码来源:


注:本文中的FloatRect::shiftMaxYEdgeTo方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。