layout/generic/nsHTMLReflowMetrics.cpp

   1 /* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 /* struct containing the output from nsIFrame::Reflow */
   7
   8 #include "nsHTMLReflowMetrics.h"
   9 #include "nsHTMLReflowState.h"
  10
  11 void
  12 nsOverflowAreas::UnionWith(const nsOverflowAreas& aOther)
  13 {
  14   // FIXME: We should probably change scrollable overflow to use
  15   // UnionRectIncludeEmpty (but leave visual overflow using UnionRect).
  16   NS_FOR_FRAME_OVERFLOW_TYPES(otype) {
  17     mRects[otype].UnionRect(mRects[otype], aOther.mRects[otype]);
  18   }
  19 }
  20
  21 void
  22 nsOverflowAreas::UnionAllWith(const nsRect& aRect)
  23 {
  24   // FIXME: We should probably change scrollable overflow to use
  25   // UnionRectIncludeEmpty (but leave visual overflow using UnionRect).
  26   NS_FOR_FRAME_OVERFLOW_TYPES(otype) {
  27     mRects[otype].UnionRect(mRects[otype], aRect);
  28   }
  29 }
  30
  31 void
  32 nsOverflowAreas::SetAllTo(const nsRect& aRect)
  33 {
  34   NS_FOR_FRAME_OVERFLOW_TYPES(otype) {
  35     mRects[otype] = aRect;
  36   }
  37 }
  38
  39 nsHTMLReflowMetrics::nsHTMLReflowMetrics(const nsHTMLReflowState& aState,
  40                                          uint32_t aFlags)
  41   : mISize(0)
  42   , mBSize(0)
  43   , mBlockStartAscent(ASK_FOR_BASELINE)
  44   , mFlags(aFlags)
  45   , mWritingMode(aState.GetWritingMode())
  46 {
  47 }
  48
  49 void
  50 nsHTMLReflowMetrics::SetOverflowAreasToDesiredBounds()
  51 {
  52   NS_FOR_FRAME_OVERFLOW_TYPES(otype) {
  53     mOverflowAreas.Overflow(otype).SetRect(0, 0, Width(), Height());
  54   }
  55 }
  56
  57 void
  58 nsHTMLReflowMetrics::UnionOverflowAreasWithDesiredBounds()
  59 {
  60   // FIXME: We should probably change scrollable overflow to use
  61   // UnionRectIncludeEmpty (but leave visual overflow using UnionRect).
  62   nsRect rect(0, 0, Width(), Height());
  63   NS_FOR_FRAME_OVERFLOW_TYPES(otype) {
  64     nsRect& o = mOverflowAreas.Overflow(otype);
  65     o.UnionRect(o, rect);
  66   }
  67 }