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C++ nsIFrame::SetPosition方法代码示例

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


在下文中一共展示了nsIFrame::SetPosition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: autoSpaceManager


//.........这里部分代码省略.........
          aDesiredSize.mMaxElementWidth = 0;
        aDesiredSize.mMaxElementWidth += borderPadding.left + borderPadding.right;
      }
      if (aDesiredSize.mFlags & NS_REFLOW_CALC_MAX_WIDTH) {
        aDesiredSize.mMaximumWidth = kidDesiredSize.mMaximumWidth +
                                     borderPadding.left + borderPadding.right;
      }
      NS_FRAME_TRACE_REFLOW_OUT("FieldSet::Reflow", aStatus);

    } else {
      // if we don't need to reflow just get the old size
      contentRect = mContentFrame->GetRect();
      const nsStyleMargin* marginStyle = mContentFrame->GetStyleMargin();

      nsMargin m(0,0,0,0);
      marginStyle->GetMargin(m);
      contentRect.Inflate(m);
    }
  }

  // use the computed width if the inner content does not fill it
  if (aReflowState.mComputedWidth != NS_INTRINSICSIZE &&
      aReflowState.mComputedWidth > contentRect.width) {
    contentRect.width = aReflowState.mComputedWidth;
  }

  if (mLegendFrame) {
    // if the content rect is larger then the  legend we can align the legend
    if (contentRect.width > mLegendRect.width) {
      PRInt32 align = ((nsLegendFrame*)mLegendFrame)->GetAlign();

      switch(align) {
        case NS_STYLE_TEXT_ALIGN_RIGHT:
          mLegendRect.x = contentRect.width - mLegendRect.width + borderPadding.left;
          break;
        case NS_STYLE_TEXT_ALIGN_CENTER:
          float p2t;
          p2t = aPresContext->PixelsToTwips();
          mLegendRect.x = NSIntPixelsToTwips((nscoord) NSToIntRound((float)(contentRect.width/2 - mLegendRect.width/2 + borderPadding.left) / p2t),p2t);
          break;
      }
  
    } else {
      //otherwise make place for the legend
      contentRect.width = mLegendRect.width;
    }
    // place the legend
    nsRect actualLegendRect(mLegendRect);
    actualLegendRect.Deflate(legendMargin);

    nsPoint curOrigin = mLegendFrame->GetPosition();

    // only if the origin changed
    if ((curOrigin.x != mLegendRect.x) || (curOrigin.y != mLegendRect.y)) {
      mLegendFrame->SetPosition(nsPoint(actualLegendRect.x , actualLegendRect.y));
      nsContainerFrame::PositionFrameView(mLegendFrame);

      // We need to recursively process the legend frame's
      // children since we're moving the frame after Reflow.
      nsContainerFrame::PositionChildViews(mLegendFrame);
    }
  }

  // Return our size and our result
  if (aReflowState.mComputedHeight == NS_INTRINSICSIZE) {
    aDesiredSize.height = mLegendSpace + 
                          borderPadding.top +
                          contentRect.height +
                          borderPadding.bottom;
  } else {
    nscoord min = borderPadding.top + borderPadding.bottom + mLegendRect.height;
    aDesiredSize.height = aReflowState.mComputedHeight + borderPadding.top + borderPadding.bottom;
    if (aDesiredSize.height < min)
      aDesiredSize.height = min;
  }
  aDesiredSize.width = contentRect.width + borderPadding.left + borderPadding.right;
  aDesiredSize.ascent  = aDesiredSize.height;
  aDesiredSize.descent = 0;
  if (aDesiredSize.mComputeMEW) {
    // if the legend is wider use it
    if (aDesiredSize.mMaxElementWidth < mLegendRect.width + borderPadding.left + borderPadding.right)
      aDesiredSize.mMaxElementWidth = mLegendRect.width + borderPadding.left + borderPadding.right;
  }
  aDesiredSize.mOverflowArea = nsRect(0, 0, aDesiredSize.width, aDesiredSize.height);
  // make the mMaximumWidth large enough if the legendframe determines the size
  if ((aDesiredSize.mFlags & NS_REFLOW_CALC_MAX_WIDTH) && mLegendFrame) {
    aDesiredSize.mMaximumWidth = PR_MAX(aDesiredSize.mMaximumWidth, mLegendRect.width +
                                        borderPadding.left + borderPadding.right);
  }
  if (mLegendFrame)
    ConsiderChildOverflow(aDesiredSize.mOverflowArea, mLegendFrame);
  if (mContentFrame)
    ConsiderChildOverflow(aDesiredSize.mOverflowArea, mContentFrame);
  FinishAndStoreOverflow(&aDesiredSize);

  Invalidate(aDesiredSize.mOverflowArea);

  NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
  return NS_OK;
}
开发者ID:rn10950,项目名称:RetroZilla,代码行数:101,代码来源:nsFieldSetFrame.cpp


注:本文中的nsIFrame::SetPosition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。