bool
PaintFrameCallback::operator()(gfxContext* aContext,
const gfxRect& aFillRect,
const gfxPattern::GraphicsFilter& aFilter,
const gfxMatrix& aTransform)
{
if (mFrame->GetStateBits() & NS_FRAME_DRAWING_AS_PAINTSERVER)
return false;
mFrame->AddStateBits(NS_FRAME_DRAWING_AS_PAINTSERVER);
nsRenderingContext context;
context.Init(mFrame->PresContext()->DeviceContext(), aContext);
aContext->Save();
// Clip to aFillRect so that we don't paint outside.
aContext->NewPath();
aContext->Rectangle(aFillRect);
aContext->Clip();
gfxMatrix savedMatrix(aContext->CurrentMatrix());
aContext->Multiply(gfxMatrix(aTransform).Invert());
// nsLayoutUtils::PaintFrame will anchor its painting at mFrame. But we want
// to have it anchored at the top left corner of the bounding box of all of
// mFrame's continuations. So we add a translation transform.
nsRect bbox = nsSVGIntegrationUtils::GetNonSVGUserSpace(mFrame);
PRInt32 appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
gfxPoint offset = gfxPoint(bbox.x, bbox.y) / appUnitsPerDevPixel;
aContext->Multiply(gfxMatrix().Translate(-offset));
gfxSize paintServerSize =
gfxSize(mPaintServerSize.width, mPaintServerSize.height) /
mFrame->PresContext()->AppUnitsPerDevPixel();
// nsLayoutUtils::PaintFrame wants to render with paintServerSize, but we
// want it to render with mRenderSize, so we need to set up a scale transform.
gfxFloat scaleX = mRenderSize.width / paintServerSize.width;
gfxFloat scaleY = mRenderSize.height / paintServerSize.height;
gfxMatrix scaleMatrix = gfxMatrix().Scale(scaleX, scaleY);
aContext->Multiply(scaleMatrix);
// Draw.
nsRect dirty(bbox.x, bbox.y, mPaintServerSize.width, mPaintServerSize.height);
nsLayoutUtils::PaintFrame(&context, mFrame,
dirty, NS_RGBA(0, 0, 0, 0),
nsLayoutUtils::PAINT_IN_TRANSFORM |
nsLayoutUtils::PAINT_ALL_CONTINUATIONS);
aContext->SetMatrix(savedMatrix);
aContext->Restore();
mFrame->RemoveStateBits(NS_FRAME_DRAWING_AS_PAINTSERVER);
return true;
}
bool
PaintFrameCallback::operator()(gfxContext* aContext,
const gfxRect& aFillRect,
const Filter& aFilter,
const gfxMatrix& aTransform)
{
if (mFrame->GetStateBits() & NS_FRAME_DRAWING_AS_PAINTSERVER)
return false;
mFrame->AddStateBits(NS_FRAME_DRAWING_AS_PAINTSERVER);
aContext->Save();
// Clip to aFillRect so that we don't paint outside.
aContext->NewPath();
aContext->Rectangle(aFillRect);
aContext->Clip();
gfxMatrix invmatrix = aTransform;
if (!invmatrix.Invert()) {
return false;
}
aContext->Multiply(invmatrix);
// nsLayoutUtils::PaintFrame will anchor its painting at mFrame. But we want
// to have it anchored at the top left corner of the bounding box of all of
// mFrame's continuations. So we add a translation transform.
int32_t appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
nsPoint offset = GetOffsetToBoundingBox(mFrame);
gfxPoint devPxOffset = gfxPoint(offset.x, offset.y) / appUnitsPerDevPixel;
aContext->Multiply(gfxMatrix::Translation(devPxOffset));
gfxSize paintServerSize =
gfxSize(mPaintServerSize.width, mPaintServerSize.height) /
mFrame->PresContext()->AppUnitsPerDevPixel();
// nsLayoutUtils::PaintFrame wants to render with paintServerSize, but we
// want it to render with mRenderSize, so we need to set up a scale transform.
gfxFloat scaleX = mRenderSize.width / paintServerSize.width;
gfxFloat scaleY = mRenderSize.height / paintServerSize.height;
aContext->Multiply(gfxMatrix::Scaling(scaleX, scaleY));
// Draw.
nsRect dirty(-offset.x, -offset.y,
mPaintServerSize.width, mPaintServerSize.height);
uint32_t flags = nsLayoutUtils::PAINT_IN_TRANSFORM;
if (mFlags & nsSVGIntegrationUtils::FLAG_SYNC_DECODE_IMAGES) {
flags |= nsLayoutUtils::PAINT_SYNC_DECODE_IMAGES;
}
nsRenderingContext context(aContext);
nsLayoutUtils::PaintFrame(&context, mFrame,
dirty, NS_RGBA(0, 0, 0, 0),
flags);
nsIFrame* currentFrame = mFrame;
while ((currentFrame = currentFrame->GetNextContinuation()) != nullptr) {
offset = currentFrame->GetOffsetToCrossDoc(mFrame);
devPxOffset = gfxPoint(offset.x, offset.y) / appUnitsPerDevPixel;
aContext->Save();
aContext->Multiply(gfxMatrix::Scaling(1/scaleX, 1/scaleY));
aContext->Multiply(gfxMatrix::Translation(devPxOffset));
aContext->Multiply(gfxMatrix::Scaling(scaleX, scaleY));
nsLayoutUtils::PaintFrame(&context, currentFrame,
dirty - offset, NS_RGBA(0, 0, 0, 0),
flags);
aContext->Restore();
}
aContext->Restore();
mFrame->RemoveStateBits(NS_FRAME_DRAWING_AS_PAINTSERVER);
return true;
}