layout/svg/nsSVGGenericContainerFrame.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   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 // Main header first:
   7 #include "nsSVGGenericContainerFrame.h"
   8 #include "nsSVGIntegrationUtils.h"
   9
  10 //----------------------------------------------------------------------
  11 // nsSVGGenericContainerFrame Implementation
  12
  13 nsIFrame*
  14 NS_NewSVGGenericContainerFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
  15 {
  16   return new (aPresShell) nsSVGGenericContainerFrame(aContext);
  17 }
  18
  19 NS_IMPL_FRAMEARENA_HELPERS(nsSVGGenericContainerFrame)
  20
  21 //----------------------------------------------------------------------
  22 // nsIFrame methods
  23
  24 nsresult
  25 nsSVGGenericContainerFrame::AttributeChanged(int32_t         aNameSpaceID,
  26                                              nsIAtom*        aAttribute,
  27                                              int32_t         aModType)
  28 {
  29 #ifdef DEBUG
  30     nsAutoString str;
  31     aAttribute->ToString(str);
  32     printf("** nsSVGGenericContainerFrame::AttributeChanged(%s)\n",
  33            NS_LossyConvertUTF16toASCII(str).get());
  34 #endif
  35
  36   return NS_OK;
  37 }
  38
  39 nsIAtom *
  40 nsSVGGenericContainerFrame::GetType() const
  41 {
  42   return nsGkAtoms::svgGenericContainerFrame;
  43 }
  44
  45 //----------------------------------------------------------------------
  46 // nsSVGContainerFrame methods:
  47
  48 gfxMatrix
  49 nsSVGGenericContainerFrame::GetCanvasTM(uint32_t aFor,
  50                                         nsIFrame* aTransformRoot)
  51 {
  52   if (!(GetStateBits() & NS_FRAME_IS_NONDISPLAY) && !aTransformRoot) {
  53     if ((aFor == FOR_PAINTING && NS_SVGDisplayListPaintingEnabled()) ||
  54         (aFor == FOR_HIT_TESTING && NS_SVGDisplayListHitTestingEnabled())) {
  55       return nsSVGIntegrationUtils::GetCSSPxToDevPxMatrix(this);
  56     }
  57   }
  58
  59   NS_ASSERTION(mParent, "null parent");
  60
  61   return static_cast<nsSVGContainerFrame*>(mParent)->
  62       GetCanvasTM(aFor, aTransformRoot);
  63 }