grab from latest android
git-svn-id: http://skia.googlecode.com/svn/trunk@27 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleOverflow.cpp b/samplecode/SampleOverflow.cpp
new file mode 100644
index 0000000..229683f
--- /dev/null
+++ b/samplecode/SampleOverflow.cpp
@@ -0,0 +1,106 @@
+#include "SampleCode.h"
+#include "SkView.h"
+#include "SkCanvas.h"
+#include "SkDevice.h"
+#include "SkPaint.h"
+
+static void DrawRoundRect() {
+#ifdef SK_SCALAR_IS_FIXED
+ bool ret = false;
+ SkPaint paint;
+ SkBitmap bitmap;
+ SkCanvas canvas;
+ SkMatrix matrix;
+ matrix.reset();
+
+ bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1370, 812);
+ bitmap.allocPixels();
+ canvas.setBitmapDevice(bitmap);
+
+ // set up clipper
+ SkRect skclip;
+ skclip.set(SkIntToFixed(284), SkIntToFixed(40), SkIntToFixed(1370), SkIntToFixed(708));
+
+ ret = canvas.clipRect(skclip);
+ SkASSERT(ret);
+
+ matrix.set(SkMatrix::kMTransX, SkFloatToFixed(-1153.28));
+ matrix.set(SkMatrix::kMTransY, SkFloatToFixed(1180.50));
+
+ matrix.set(SkMatrix::kMScaleX, SkFloatToFixed(0.177171));
+ matrix.set(SkMatrix::kMScaleY, SkFloatToFixed(0.177043));
+
+ matrix.set(SkMatrix::kMSkewX, SkFloatToFixed(0.126968));
+ matrix.set(SkMatrix::kMSkewY, SkFloatToFixed(-0.126876));
+
+ matrix.set(SkMatrix::kMPersp0, SkFloatToFixed(0.0));
+ matrix.set(SkMatrix::kMPersp1, SkFloatToFixed(0.0));
+
+ ret = canvas.concat(matrix);
+
+ paint.setAntiAlias(true);
+ paint.setColor(0xb2202020);
+ paint.setStyle(SkPaint::kStroke_Style);
+ paint.setStrokeWidth(SkFloatToFixed(68.13));
+
+ SkRect r;
+ r.set(SkFloatToFixed(-313.714417), SkFloatToFixed(-4.826389), SkFloatToFixed(18014.447266), SkFloatToFixed(1858.154541));
+ canvas.drawRoundRect(r, SkFloatToFixed(91.756363), SkFloatToFixed(91.756363), paint);
+#endif
+}
+
+static bool HitTestPath(const SkPath& path, SkScalar x, SkScalar y) {
+ SkRegion rgn, clip;
+
+ int ix = SkScalarFloor(x);
+ int iy = SkScalarFloor(y);
+
+ clip.setRect(ix, iy, ix + 1, iy + 1);
+
+ bool contains = rgn.setPath(path, clip);
+ return contains;
+}
+
+static void TestOverflowHitTest() {
+ SkPath path;
+
+#ifdef SK_SCALAR_IS_FLOATx
+ path.addCircle(0, 0, 70000, SkPath::kCCW_Direction);
+ SkASSERT(HitTestPath(path, 40000, 40000));
+#endif
+}
+
+class OverflowView : public SkView {
+public:
+ OverflowView() {}
+
+protected:
+ // overrides from SkEventSink
+ virtual bool onQuery(SkEvent* evt) {
+ if (SampleCode::TitleQ(*evt)) {
+ SampleCode::TitleR(evt, "Circles");
+ return true;
+ }
+ return this->INHERITED::onQuery(evt);
+ }
+
+ void drawBG(SkCanvas* canvas) {
+ canvas->drawColor(SK_ColorWHITE);
+ }
+
+ virtual void onDraw(SkCanvas* canvas) {
+ this->drawBG(canvas);
+
+ DrawRoundRect();
+ TestOverflowHitTest();
+ }
+
+private:
+ typedef SkView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new OverflowView; }
+static SkViewRegister reg(MyFactory);
+