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Diffstat (limited to 'samplecode/SampleOverflow.cpp')
-rw-r--r-- | samplecode/SampleOverflow.cpp | 106 |
1 files changed, 106 insertions, 0 deletions
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); + |