nsRegion nsIntRegion::ToAppUnits (nscoord aAppUnitsPerPixel) const
{
nsRegion result;
nsIntRegionRectIterator rgnIter(*this);
const nsIntRect* currentRect;
while ((currentRect = rgnIter.Next())) {
nsRect appRect = currentRect->ToAppUnits(aAppUnitsPerPixel);
result.Or(result, appRect);
}
return result;
}
nsIntRegion nsRegion::ScaleToOutsidePixels (float aScaleX, float aScaleY,
nscoord aAppUnitsPerPixel) const
{
nsIntRegion result;
nsRegionRectIterator rgnIter(*this);
const nsRect* currentRect;
while ((currentRect = rgnIter.Next())) {
nsIntRect deviceRect =
currentRect->ScaleToOutsidePixels(aScaleX, aScaleY, aAppUnitsPerPixel);
result.Or(result, deviceRect);
}
return result;
}
void RegionLayerDrawExtra::draw(SkCanvas* canvas, LayerAndroid* layer)
{
SkRegion* region = getHighlightRegionsForLayer(layer);
if (!region || region->isEmpty())
return;
SkRegion::Iterator rgnIter(*region);
SkPaint paint;
paint.setColor(m_highlightColor.rgb());
while (!rgnIter.done()) {
const SkIRect& rect = rgnIter.rect();
canvas->drawIRect(rect, paint);
rgnIter.next();
}
}
void GLExtras::drawRegion(const SkRegion& region, bool fill, bool drawBorder,
const TransformationMatrix* drawMat, Color color)
{
if (region.isEmpty())
return;
if (fill) {
SkRegion::Iterator rgnIter(region);
while (!rgnIter.done()) {
const SkIRect& ir = rgnIter.rect();
SkRect r;
r.set(ir.fLeft, ir.fTop, ir.fRight, ir.fBottom);
drawRing(r, color, drawMat);
rgnIter.next();
}
}
if (fill && !drawBorder)
return;
SkPath path;
if (!region.getBoundaryPath(&path))
return;
SkPath::Iter iter(path, true);
SkPath::Verb verb;
SkPoint pts[4];
SkRegion clip;
SkIRect startRect;
while ((verb = iter.next(pts)) != SkPath::kDone_Verb) {
if (verb == SkPath::kLine_Verb) {
SkRect r;
r.set(pts, 2);
SkIRect line;
int borderWidth = RING_BORDER_WIDTH;
if (!fill)
borderWidth *= 2;
line.fLeft = r.fLeft - borderWidth;
line.fRight = r.fRight + borderWidth;
line.fTop = r.fTop - borderWidth;
line.fBottom = r.fBottom + borderWidth;
if (clip.intersects(line)) {
clip.op(line, SkRegion::kReverseDifference_Op);
if (clip.isEmpty())
continue; // Nothing to draw, continue
line = clip.getBounds();
if (SkIRect::Intersects(startRect, line)) {
clip.op(startRect, SkRegion::kDifference_Op);
if (clip.isEmpty())
continue; // Nothing to draw, continue
line = clip.getBounds();
}
} else {
clip.setRect(line);
}
r.set(line.fLeft, line.fTop, line.fRight, line.fBottom);
drawRing(r, color, drawMat);
if (startRect.isEmpty()) {
startRect.set(line.fLeft, line.fTop, line.fRight, line.fBottom);
}
}
if (verb == SkPath::kMove_Verb) {
startRect.setEmpty();
}
}
}
