// Adjust rect for all paints that may affect its geometry, then map it to identity space.
Bounds adjustAndMap(SkRect rect, const SkPaint* paint) const {
// Inverted rectangles really confuse our BBHs.
rect.sort();
// Adjust the rect for its own paint.
if (!AdjustForPaint(paint, &rect)) {
// The paint could do anything to our bounds. The only safe answer is the current clip.
return fCurrentClipBounds;
}
// Adjust rect for all the paints from the SaveLayers we're inside.
if (!this->adjustForSaveLayerPaints(&rect)) {
// Same deal as above.
return fCurrentClipBounds;
}
// Map the rect back to identity space.
fCTM.mapRect(&rect);
// Nothing can draw outside the current clip.
if (!rect.intersect(fCurrentClipBounds)) {
return Bounds::MakeEmpty();
}
return rect;
}
bool adjustForSaveLayerPaints(SkRect* rect, int savesToIgnore = 0) const {
for (int i = fSaveStack.count() - 1 - savesToIgnore; i >= 0; i--) {
if (!AdjustForPaint(fSaveStack[i].paint, rect)) {
return false;
}
}
return true;
}
bool adjustForSaveLayerPaints(SkRect* rect, int savesToIgnore = 0) const {
for (int i = fSaveStack.count() - 1 - savesToIgnore; i >= 0; i--) {
SkMatrix inverse;
if (!fSaveStack[i].ctm.invert(&inverse)) {
return false;
}
inverse.mapRect(rect);
if (!AdjustForPaint(fSaveStack[i].paint, rect)) {
return false;
}
fSaveStack[i].ctm.mapRect(rect);
}
return true;
}
// Adjust rect for all paints that may affect its geometry, then map it to identity space.
Bounds adjustAndMap(SkRect rect, const SkPaint* paint) const {
// Inverted rectangles really confuse our BBHs.
rect.sort();
// Adjust the rect for its own paint.
if (!AdjustForPaint(paint, &rect)) {
// The paint could do anything to our bounds. The only safe answer is the current clip.
return fCurrentClipBounds;
}
// Adjust rect for all the paints from the SaveLayers we're inside.
if (!this->adjustForSaveLayerPaints(&rect)) {
// Same deal as above.
return fCurrentClipBounds;
}
// Map the rect back to identity space.
fCTM->mapRect(&rect);
// Nothing can draw outside the current clip.
// (Only bounded ops call into this method, so oddballs like Clear don't matter here.)
rect.intersect(fCurrentClipBounds);
return rect;
}