gfxMatrix
nsSVGInnerSVGFrame::GetCanvasTM()
{
  if (!mCanvasTM) {
    NS_ASSERTION(GetParent(), "null parent");

    nsSVGContainerFrame *parent = static_cast<nsSVGContainerFrame*>(GetParent());
    SVGSVGElement *content = static_cast<SVGSVGElement*>(mContent);

    gfxMatrix tm = content->PrependLocalTransformsTo(parent->GetCanvasTM());

    mCanvasTM = new gfxMatrix(tm);
  }
  return *mCanvasTM;
}
gfxMatrix
nsSVGOuterSVGFrame::GetCanvasTM()
{
  if (!mCanvasTM) {
    SVGSVGElement *content = static_cast<SVGSVGElement*>(mContent);

    float devPxPerCSSPx =
      1.0f / PresContext()->AppUnitsToFloatCSSPixels(
                                PresContext()->AppUnitsPerDevPixel());

    gfxMatrix tm = content->PrependLocalTransformsTo(
                     gfxMatrix::Scaling(devPxPerCSSPx, devPxPerCSSPx));
    mCanvasTM = new gfxMatrix(tm);
  }
  return *mCanvasTM;
}
bool
nsSVGOuterSVGAnonChildFrame::HasChildrenOnlyTransform(gfx::Matrix *aTransform) const
{
  // We must claim our nsSVGOuterSVGFrame's children-only transforms as our own
  // so that the children we are used to wrap are transformed properly.

  SVGSVGElement *content = static_cast<SVGSVGElement*>(mContent);

  bool hasTransform = content->HasChildrenOnlyTransform();

  if (hasTransform && aTransform) {
    // Outer-<svg> doesn't use x/y, so we can pass eChildToUserSpace here.
    gfxMatrix identity;
    *aTransform = gfx::ToMatrix(
      content->PrependLocalTransformsTo(identity, eChildToUserSpace));
  }

  return hasTransform;
}
Example #4
0
gfxMatrix
nsSVGInnerSVGFrame::GetCanvasTM(uint32_t aFor)
{
  if (!(GetStateBits() & NS_STATE_SVG_NONDISPLAY_CHILD)) {
    if ((aFor == FOR_PAINTING && NS_SVGDisplayListPaintingEnabled()) ||
        (aFor == FOR_HIT_TESTING && NS_SVGDisplayListHitTestingEnabled())) {
      return nsSVGIntegrationUtils::GetCSSPxToDevPxMatrix(this);
    }
  }
  if (!mCanvasTM) {
    NS_ASSERTION(mParent, "null parent");

    nsSVGContainerFrame *parent = static_cast<nsSVGContainerFrame*>(mParent);
    SVGSVGElement *content = static_cast<SVGSVGElement*>(mContent);

    gfxMatrix tm = content->PrependLocalTransformsTo(parent->GetCanvasTM(aFor));

    mCanvasTM = new gfxMatrix(tm);
  }
  return *mCanvasTM;
}
Example #5
0
gfxMatrix
nsSVGOuterSVGFrame::GetCanvasTM(uint32_t aFor, nsIFrame* aTransformRoot)
{
  if (!(GetStateBits() & NS_FRAME_IS_NONDISPLAY) && !aTransformRoot) {
    if (aFor == FOR_PAINTING && NS_SVGDisplayListPaintingEnabled()) {
      return nsSVGIntegrationUtils::GetCSSPxToDevPxMatrix(this);
    }
  }
  if (!mCanvasTM) {
    NS_ASSERTION(!aTransformRoot, "transform root will be ignored here");
    SVGSVGElement *content = static_cast<SVGSVGElement*>(mContent);

    float devPxPerCSSPx =
      1.0f / PresContext()->AppUnitsToFloatCSSPixels(
                                PresContext()->AppUnitsPerDevPixel());

    gfxMatrix tm = content->PrependLocalTransformsTo(
                     gfxMatrix().Scale(devPxPerCSSPx, devPxPerCSSPx));
    mCanvasTM = new gfxMatrix(tm);
  }
  return *mCanvasTM;
}