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C++ Maybe::ApplyRelativePositioning方法代码示例

本文整理汇总了C++中Maybe::ApplyRelativePositioning方法的典型用法代码示例。如果您正苦于以下问题:C++ Maybe::ApplyRelativePositioning方法的具体用法?C++ Maybe::ApplyRelativePositioning怎么用?C++ Maybe::ApplyRelativePositioning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Maybe的用法示例。


在下文中一共展示了Maybe::ApplyRelativePositioning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: legendMargin


//.........这里部分代码省略.........
      kidReflowState.ComputedMinHeight() =
        std::max(0, aReflowState.ComputedMinHeight() - mLegendSpace);
    }

    if (aReflowState.ComputedMaxHeight() != NS_UNCONSTRAINEDSIZE) {
      kidReflowState.ComputedMaxHeight() =
        std::max(0, aReflowState.ComputedMaxHeight() - mLegendSpace);
    }

    nsHTMLReflowMetrics kidDesiredSize(kidReflowState,
                                       aDesiredSize.mFlags);
    // Reflow the frame
    NS_ASSERTION(kidReflowState.ComputedPhysicalMargin() == nsMargin(0,0,0,0),
                 "Margins on anonymous fieldset child not supported!");
    nsPoint pt(border.left, border.top + mLegendSpace);
    ReflowChild(inner, aPresContext, kidDesiredSize, kidReflowState,
                pt.x, pt.y, 0, aStatus);

    FinishReflowChild(inner, aPresContext, kidDesiredSize,
                      &kidReflowState, pt.x, pt.y, 0);
    NS_FRAME_TRACE_REFLOW_OUT("FieldSet::Reflow", aStatus);
  }

  LogicalRect contentRect(innerWM);
  if (inner) {
    // We don't support margins on inner, so our content rect is just the
    // inner's border-box.
    contentRect = inner->GetLogicalRect(aReflowState.ComputedWidth());
  }

  // Our content rect must fill up the available width
  if (innerAvailSize.ISize(innerWM) > contentRect.ISize(innerWM)) {
    contentRect.ISize(innerWM) = innerAvailSize.ISize(innerWM);
  }

  //XXX temporary!
  nsRect physicalContentRect =
    contentRect.GetPhysicalRect(innerWM, aReflowState.ComputedWidth());
  if (legend) {
    // the legend is postioned horizontally within the inner's content rect
    // (so that padding on the fieldset affects the legend position).
    nsRect innerContentRect = physicalContentRect;
    innerContentRect.Deflate(aReflowState.ComputedPhysicalPadding());
    // if the inner content rect is larger than the legend, we can align the legend
    if (innerContentRect.width > mLegendRect.width) {
      int32_t align = static_cast<nsLegendFrame*>
        (legend->GetContentInsertionFrame())->GetAlign();

      switch (align) {
        case NS_STYLE_TEXT_ALIGN_RIGHT:
          mLegendRect.x = innerContentRect.XMost() - mLegendRect.width;
          break;
        case NS_STYLE_TEXT_ALIGN_CENTER:
          // Note: rounding removed; there doesn't seem to be any need
          mLegendRect.x = innerContentRect.width / 2 - mLegendRect.width / 2 + innerContentRect.x;
          break;
        default:
          mLegendRect.x = innerContentRect.x;
          break;
      }
    } else {
      // otherwise make place for the legend
      mLegendRect.x = innerContentRect.x;
      innerContentRect.width = mLegendRect.width;
      physicalContentRect.width = mLegendRect.width +
        aReflowState.ComputedPhysicalPadding().LeftRight();
    }

    // place the legend
    nsRect actualLegendRect(mLegendRect);
    actualLegendRect.Deflate(legendMargin);
    nsPoint actualLegendPos(actualLegendRect.TopLeft());
    legendReflowState->ApplyRelativePositioning(&actualLegendPos);
    legend->SetPosition(actualLegendPos);
    nsContainerFrame::PositionFrameView(legend);
    nsContainerFrame::PositionChildViews(legend);
  }

  // Return our size and our result.
  WritingMode wm = aReflowState.GetWritingMode();
  nsSize finalSize(physicalContentRect.width + border.LeftRight(),
                   mLegendSpace + border.TopBottom() +
                   (inner ? inner->GetRect().height : 0));
  aDesiredSize.SetSize(wm, LogicalSize(wm, finalSize));
  aDesiredSize.SetOverflowAreasToDesiredBounds();
  if (legend)
    ConsiderChildOverflow(aDesiredSize.mOverflowAreas, legend);
  if (inner)
    ConsiderChildOverflow(aDesiredSize.mOverflowAreas, inner);

  // Merge overflow container bounds and status.
  aDesiredSize.mOverflowAreas.UnionWith(ocBounds);
  NS_MergeReflowStatusInto(&aStatus, ocStatus);

  FinishReflowWithAbsoluteFrames(aPresContext, aDesiredSize, aReflowState, aStatus);

  InvalidateFrame();

  NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
}
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