add SkSize for dimensions
add SkShape baseclass, in the hopes of having SkPicture inherit from that, and
also using shapes as the extension mechanism for things like animated-gif
git-svn-id: http://skia.googlecode.com/svn/trunk@174 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleRegion.cpp b/samplecode/SampleRegion.cpp
index fd20a81..5dc69cb 100644
--- a/samplecode/SampleRegion.cpp
+++ b/samplecode/SampleRegion.cpp
@@ -47,10 +47,32 @@
}
#endif
-static void paint_rgn(SkCanvas* canvas, const SkRegion& rgn, const SkPaint& paint)
-{
- SkRegion::Iterator iter(rgn);
+static void scale_rect(SkIRect* dst, const SkIRect& src, float scale) {
+ dst->fLeft = (int)::roundf(src.fLeft * scale);
+ dst->fTop = (int)::roundf(src.fTop * scale);
+ dst->fRight = (int)::roundf(src.fRight * scale);
+ dst->fBottom = (int)::roundf(src.fBottom * scale);
+}
+
+static void scale_rgn(SkRegion* dst, const SkRegion& src, float scale) {
+ SkRegion tmp;
+ SkRegion::Iterator iter(src);
+
+ for (; !iter.done(); iter.next()) {
+ SkIRect r;
+ scale_rect(&r, iter.rect(), scale);
+ tmp.op(r, SkRegion::kUnion_Op);
+ }
+ dst->swap(tmp);
+}
+
+static void paint_rgn(SkCanvas* canvas, const SkRegion& rgn,
+ const SkPaint& paint) {
+ SkRegion scaled;
+ scale_rgn(&scaled, rgn, 0.5f);
+ SkRegion::Iterator iter(rgn);
+
for (; !iter.done(); iter.next())
{
SkRect r;