Beispiel #1
0
NS_IMETHODIMP
nsBox::GetPadding(nsMargin& aMargin)
{
  const nsStyleDisplay *disp = GetStyleDisplay();
  if (disp->mAppearance && gTheme) {
    // Go to the theme for the padding.
    nsPresContext *context = PresContext();
    if (gTheme->ThemeSupportsWidget(context, this, disp->mAppearance)) {
      nsIntMargin margin(0, 0, 0, 0);
      PRBool useThemePadding;

      useThemePadding = gTheme->GetWidgetPadding(context->DeviceContext(),
                                                 this, disp->mAppearance,
                                                 &margin);
      if (useThemePadding) {
        aMargin.top = context->DevPixelsToAppUnits(margin.top);
        aMargin.right = context->DevPixelsToAppUnits(margin.right);
        aMargin.bottom = context->DevPixelsToAppUnits(margin.bottom);
        aMargin.left = context->DevPixelsToAppUnits(margin.left);
        return NS_OK;
      }
    }
  }

  aMargin.SizeTo(0,0,0,0);
  GetStylePadding()->GetPadding(aMargin);

  return NS_OK;
}
Beispiel #2
0
/* virtual */ PRBool
nsInlineFrame::IsSelfEmpty()
{
#if 0
  // I used to think inline frames worked this way, but it seems they
  // don't.  At least not in our codebase.
  if (GetPresContext()->CompatibilityMode() == eCompatibility_FullStandards) {
    return PR_FALSE;
  }
#endif
  const nsStyleMargin* margin = GetStyleMargin();
  const nsStyleBorder* border = GetStyleBorder();
  const nsStylePadding* padding = GetStylePadding();
  // XXX Top and bottom removed, since they shouldn't affect things, but this
  // doesn't really match with nsLineLayout.cpp's setting of
  // ZeroEffectiveSpanBox, anymore, so what should this really be?
  PRBool haveRight =
    border->GetActualBorderWidth(NS_SIDE_RIGHT) != 0 ||
    !IsPaddingZero(padding->mPadding.GetRightUnit(),
                   padding->mPadding.GetRight()) ||
    !IsMarginZero(margin->mMargin.GetRightUnit(),
                  margin->mMargin.GetRight());
  PRBool haveLeft =
    border->GetActualBorderWidth(NS_SIDE_LEFT) != 0 ||
    !IsPaddingZero(padding->mPadding.GetLeftUnit(),
                   padding->mPadding.GetLeft()) ||
    !IsMarginZero(margin->mMargin.GetLeftUnit(),
                  margin->mMargin.GetLeft());
  if (haveLeft || haveRight) {
    if (GetStateBits() & NS_FRAME_IS_SPECIAL) {
      PRBool haveStart, haveEnd;
      if (NS_STYLE_DIRECTION_LTR == GetStyleVisibility()->mDirection) {
        haveStart = haveLeft;
        haveEnd = haveRight;
      } else {
        haveStart = haveRight;
        haveEnd = haveLeft;
      }
      // For special frames, ignore things we know we'll skip in GetSkipSides.
      // XXXbz should we be doing this for non-special frames too, in a more
      // general way?

      // Get the first continuation eagerly, as a performance optimization, to
      // avoid having to get it twice..
      nsIFrame* firstCont = GetFirstContinuation();
      return
        (!haveStart || nsLayoutUtils::FrameIsInLastPartOfIBSplit(firstCont)) &&
        (!haveEnd || nsLayoutUtils::FrameIsInFirstPartOfIBSplit(firstCont));
    }
    return PR_FALSE;
  }
  return PR_TRUE;
}
Beispiel #3
0
//------------------------------------------------------------------------------
void
nsPageFrame::PaintPageContent(nsIRenderingContext& aRenderingContext,
                              const nsRect&        aDirtyRect,
                              nsPoint              aPt) {
  nsIFrame* pageContentFrame  = mFrames.FirstChild();
  nsRect rect = aDirtyRect;
  float scale = PresContext()->GetPageScale();
  aRenderingContext.PushState();
  nsPoint framePos = aPt + pageContentFrame->GetOffsetTo(this);
  aRenderingContext.Translate(framePos.x, framePos.y);
  // aPt translates to coords relative to this, then margins translate to
  // pageContentFrame's coords
  rect -= framePos;
  aRenderingContext.Scale(scale, scale);
  rect.ScaleRoundOut(1.0f / scale);
  // Make sure we don't draw where we aren't supposed to draw, especially
  // when printing selection
  nsRect clipRect(nsPoint(0, 0), pageContentFrame->GetSize());
  // Note: this computation matches how we compute maxSize.height
  // in nsPageFrame::Reflow
  nscoord expectedPageContentHeight = 
    NSToCoordCeil((GetSize().height - mPD->mReflowMargin.TopBottom()) / scale);
  if (clipRect.height > expectedPageContentHeight) {
    // We're doing print-selection, with one long page-content frame.
    // Clip to the appropriate page-content slice for the current page.
    NS_ASSERTION(mPageNum > 0, "page num should be positive");
    clipRect.y =  expectedPageContentHeight * (mPageNum - 1);
    clipRect.height = expectedPageContentHeight;
    NS_ASSERTION(clipRect.y < pageContentFrame->GetSize().height,
                 "Should be clipping to region inside the page content bounds");
  }
  aRenderingContext.SetClipRect(clipRect, nsClipCombine_kIntersect);

  const nsStyleBorder* border = GetStyleBorder();
  const nsStylePadding* padding = GetStylePadding();
  nsRect backgroundRect = nsRect(nsPoint(0, 0), pageContentFrame->GetSize());
  nsCSSRendering::PaintBackground(PresContext(), aRenderingContext, this,
                                  rect, backgroundRect, *border, *padding,
                                  PR_TRUE);

  nsLayoutUtils::PaintFrame(&aRenderingContext, pageContentFrame,
                            nsRegion(rect), NS_RGBA(0,0,0,0));

  aRenderingContext.PopState();
}
NS_IMETHODIMP
nsTableCellFrame::Paint(nsPresContext*      aPresContext,
                        nsIRenderingContext& aRenderingContext,
                        const nsRect&        aDirtyRect,
                        nsFramePaintLayer    aWhichLayer,
                        PRUint32             aFlags)
{
  NS_ENSURE_TRUE(aPresContext, NS_ERROR_NULL_POINTER);
  PRBool isVisible;
  if (NS_SUCCEEDED(IsVisibleForPainting(aPresContext, aRenderingContext, PR_FALSE, &isVisible)) && !isVisible) {
    return NS_OK;
  }

  PRBool paintChildren = PR_TRUE;

  if (NS_FRAME_PAINT_LAYER_BACKGROUND == aWhichLayer) {
    const nsStyleBorder*      myBorder       = nsnull;
    const nsStylePadding*     myPadding      = nsnull;
    const nsStyleTableBorder* cellTableStyle = nsnull;
    const nsStyleVisibility* vis = GetStyleVisibility();
    if (vis->IsVisible()) {
      myBorder = GetStyleBorder();
      myPadding = GetStylePadding();
      cellTableStyle = GetStyleTableBorder();

      // draw the border & background only when there is content or showing empty cells
      if (NS_STYLE_TABLE_EMPTY_CELLS_HIDE != cellTableStyle->mEmptyCells ||
          !GetContentEmpty()) {
        PaintUnderlay(*aPresContext, aRenderingContext, aDirtyRect, aFlags,
                      *myBorder, *myPadding, *cellTableStyle);
      }

      // Paint outline
      nsRect rect(0, 0, mRect.width, mRect.height);
      const nsStyleOutline* myOutline = GetStyleOutline();
      nsCSSRendering::PaintOutline(aPresContext, aRenderingContext, this,
                                  aDirtyRect, rect, *myBorder, *myOutline,
                                  mStyleContext, 0);

      const nsStyleBackground* myColor = GetStyleBackground();
      DecorateForSelection(aPresContext, aRenderingContext,myColor); //ignore return value
    }

    paintChildren = !(aFlags & NS_PAINT_FLAG_TABLE_CELL_BG_PASS);
    //flags were for us; remove them for our children
    aFlags &= ~ (NS_PAINT_FLAG_TABLE_CELL_BG_PASS | NS_PAINT_FLAG_TABLE_BG_PAINT);
  }

#ifdef DEBUG
  // for debug...
  if ((NS_FRAME_PAINT_LAYER_DEBUG == aWhichLayer) && GetShowFrameBorders()) {
    aRenderingContext.SetColor(NS_RGB(0, 0, 128));
    aRenderingContext.DrawRect(0, 0, mRect.width, mRect.height);
  }
#endif

  // paint the children unless we've been told not to
  if (paintChildren) {
    const nsStyleDisplay* disp = GetStyleDisplay();
    // if the cell originates in a row and/or col that is collapsed, the
    // bottom and/or right portion of the cell is painted by translating
    // the rendering context.
    nsPoint offset;
    GetCollapseOffset(offset);
    PRBool pushed = PR_FALSE;
    if ((0 != offset.x) || (0 != offset.y)) {
      aRenderingContext.PushState();
      pushed = PR_TRUE;
      aRenderingContext.Translate(offset.x, offset.y);
      aRenderingContext.SetClipRect(nsRect(-offset.x, -offset.y, mRect.width, mRect.height),
                                    nsClipCombine_kIntersect);
    }
    else {
      // XXXldb HIDDEN should really create a scrollframe,
      // but use |IsTableClip| here since it doesn't.
      if (disp->IsTableClip() ||
          (HasPctOverHeight() && eCompatibility_NavQuirks == aPresContext->CompatibilityMode())) {
        aRenderingContext.PushState();
        pushed = PR_TRUE;
        SetOverflowClipRect(aRenderingContext);
      }    
    }

    PaintChildren(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer, aFlags);

    if (pushed) {
      aRenderingContext.PopState();
    }
  } 
  
  DO_GLOBAL_REFLOW_COUNT_DSP_J("nsTableCellFrame", &aRenderingContext, 0);
  return NS_OK;
  /*nsFrame::Paint(aPresContext,
                        aRenderingContext,
                        aDirtyRect,
                        aWhichLayer);*/
}
Beispiel #5
0
// this is identical to nsHTMLContainerFrame::Paint except for the background and border. 
NS_IMETHODIMP
nsFieldSetFrame::Paint(nsPresContext*       aPresContext,
                       nsIRenderingContext& aRenderingContext,
                       const nsRect&        aDirtyRect,
                       nsFramePaintLayer    aWhichLayer,
                       PRUint32             aFlags)
{
  if (NS_FRAME_PAINT_LAYER_BACKGROUND == aWhichLayer) {
    // Paint our background and border
    PRBool isVisible;
    if (NS_SUCCEEDED(IsVisibleForPainting(aPresContext, aRenderingContext, PR_TRUE, &isVisible)) && 
                     isVisible && mRect.width && mRect.height) {
      PRIntn skipSides = GetSkipSides();
      const nsStyleBorder* borderStyle = GetStyleBorder();
      const nsStylePadding* paddingStyle = GetStylePadding();
       
      nscoord topBorder = borderStyle->GetBorderWidth(NS_SIDE_TOP);

      nscoord yoff = 0;
      
      // if the border is smaller than the legend. Move the border down
      // to be centered on the legend. 
      if (topBorder < mLegendRect.height)
        yoff = (mLegendRect.height - topBorder)/2;
      
      nsRect rect(0, yoff, mRect.width, mRect.height - yoff);

      nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, this,
                                      aDirtyRect, rect, *borderStyle,
                                      *paddingStyle, PR_TRUE);

      if (mLegendFrame) {

        // Use the rect of the legend frame, not mLegendRect, so we draw our
        // border under the legend's left and right margins.
        const nsRect & legendRect = mLegendFrame->GetRect();
      
        // we should probably use PaintBorderEdges to do this but for now just use clipping
        // to achieve the same effect.

        // draw left side
        nsRect clipRect(rect);
        clipRect.width = legendRect.x - rect.x;
        clipRect.height = topBorder;

        aRenderingContext.PushState();
        aRenderingContext.SetClipRect(clipRect, nsClipCombine_kIntersect);
        nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, this,
                                    aDirtyRect, rect, *borderStyle, mStyleContext, skipSides);
  
        aRenderingContext.PopState();


        // draw right side
        clipRect = rect;
        clipRect.x = legendRect.x + legendRect.width;
        clipRect.width -= (legendRect.x + legendRect.width);
        clipRect.height = topBorder;

        aRenderingContext.PushState();
        aRenderingContext.SetClipRect(clipRect, nsClipCombine_kIntersect);
        nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, this,
                                    aDirtyRect, rect, *borderStyle, mStyleContext, skipSides);
  
        aRenderingContext.PopState();

      
        // draw bottom
        clipRect = rect;
        clipRect.y += topBorder;
        clipRect.height = mRect.height - (yoff + topBorder);
      
        aRenderingContext.PushState();
        aRenderingContext.SetClipRect(clipRect, nsClipCombine_kIntersect);
        nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, this,
                                    aDirtyRect, rect, *borderStyle, mStyleContext, skipSides);
  
        aRenderingContext.PopState();
      } else {

        nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, this,
                                    aDirtyRect,
                                    nsRect(0,0,mRect.width, mRect.height),
                                    *borderStyle, mStyleContext, skipSides);
      }
    }
  }

  PaintChildren(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);

#ifdef DEBUG
  if ((NS_FRAME_PAINT_LAYER_DEBUG == aWhichLayer) && GetShowFrameBorders()) {
    if (HasView()) {
      aRenderingContext.SetColor(NS_RGB(0,0,255));
    }
    else {
      aRenderingContext.SetColor(NS_RGB(255,0,0));
    }
    aRenderingContext.DrawRect(0, 0, mRect.width, mRect.height);
  }
#endif
  DO_GLOBAL_REFLOW_COUNT_DSP("nsFieldSetFrame", &aRenderingContext);
  return NS_OK;
}