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      1 
      2 /*
      3  * Copyright 2011 Google Inc.
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 #include "SampleCode.h"
      9 #include "SkView.h"
     10 #include "SkCanvas.h"
     11 #include "SkDevice.h"
     12 #include "SkPaint.h"
     13 
     14 static void DrawRoundRect() {
     15 #ifdef SK_SCALAR_IS_FIXED
     16     bool ret = false;
     17     SkPaint  paint;
     18     SkBitmap bitmap;
     19     SkCanvas canvas;
     20     SkMatrix matrix;
     21     matrix.reset();
     22 
     23     bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1370, 812);
     24     bitmap.allocPixels();
     25     canvas.setBitmapDevice(bitmap);
     26 
     27     // set up clipper
     28     SkRect skclip;
     29     skclip.set(SkIntToFixed(284), SkIntToFixed(40), SkIntToFixed(1370), SkIntToFixed(708));
     30 
     31     ret = canvas.clipRect(skclip);
     32     SkASSERT(ret);
     33 
     34     matrix.set(SkMatrix::kMTransX, SkFloatToFixed(-1153.28));
     35     matrix.set(SkMatrix::kMTransY, SkFloatToFixed(1180.50));
     36 
     37     matrix.set(SkMatrix::kMScaleX, SkFloatToFixed(0.177171));
     38     matrix.set(SkMatrix::kMScaleY, SkFloatToFixed(0.177043));
     39 
     40     matrix.set(SkMatrix::kMSkewX, SkFloatToFixed(0.126968));
     41     matrix.set(SkMatrix::kMSkewY, SkFloatToFixed(-0.126876));
     42 
     43     matrix.set(SkMatrix::kMPersp0, SkFloatToFixed(0.0));
     44     matrix.set(SkMatrix::kMPersp1, SkFloatToFixed(0.0));
     45 
     46     ret = canvas.concat(matrix);
     47 
     48     paint.setAntiAlias(true);
     49     paint.setColor(0xb2202020);
     50     paint.setStyle(SkPaint::kStroke_Style);
     51     paint.setStrokeWidth(SkFloatToFixed(68.13));
     52 
     53     SkRect r;
     54     r.set(SkFloatToFixed(-313.714417), SkFloatToFixed(-4.826389), SkFloatToFixed(18014.447266), SkFloatToFixed(1858.154541));
     55     canvas.drawRoundRect(r, SkFloatToFixed(91.756363), SkFloatToFixed(91.756363), paint);
     56 #endif
     57 }
     58 
     59 static bool HitTestPath(const SkPath& path, SkScalar x, SkScalar y) {
     60     SkRegion    rgn, clip;
     61 
     62     int ix = SkScalarFloor(x);
     63     int iy = SkScalarFloor(y);
     64 
     65     clip.setRect(ix, iy, ix + 1, iy + 1);
     66 
     67     bool contains = rgn.setPath(path, clip);
     68     return contains;
     69 }
     70 
     71 static void TestOverflowHitTest() {
     72     SkPath path;
     73 
     74 #ifdef SK_SCALAR_IS_FLOATx
     75     path.addCircle(0, 0, 70000, SkPath::kCCW_Direction);
     76     SkASSERT(HitTestPath(path, 40000, 40000));
     77 #endif
     78 }
     79 
     80 class OverflowView : public SampleView {
     81 public:
     82 	OverflowView() {}
     83 
     84 protected:
     85     // overrides from SkEventSink
     86     virtual bool onQuery(SkEvent* evt) {
     87         if (SampleCode::TitleQ(*evt)) {
     88             SampleCode::TitleR(evt, "Circles");
     89             return true;
     90         }
     91         return this->INHERITED::onQuery(evt);
     92     }
     93 
     94     virtual void onDrawContent(SkCanvas* canvas) {
     95         DrawRoundRect();
     96         TestOverflowHitTest();
     97     }
     98 
     99 private:
    100     typedef SampleView INHERITED;
    101 };
    102 
    103 //////////////////////////////////////////////////////////////////////////////
    104 
    105 static SkView* MyFactory() { return new OverflowView; }
    106 static SkViewRegister reg(MyFactory);
    107 
    108