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      1 /*
      2  * Copyright 2016 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 #include "gm.h"
      8 #include "SkCanvas.h"
      9 #include "SkPath.h"
     10 #include "SkClipOpPriv.h"
     11 
     12 namespace skiagm {
     13 
     14 //this test exercise SkCanvas::setDeviceClipRestriction behavior
     15 class ComplexClip4GM : public GM {
     16 public:
     17   ComplexClip4GM(bool aaclip)
     18     : fDoAAClip(aaclip) {
     19         this->setBGColor(0xFFDEDFDE);
     20     }
     21 
     22 protected:
     23 
     24 
     25     SkString onShortName() {
     26         SkString str;
     27         str.printf("complexclip4_%s",
     28                    fDoAAClip ? "aa" : "bw");
     29         return str;
     30     }
     31 
     32     SkISize onISize() { return SkISize::Make(970, 780); }
     33 
     34     virtual void onDraw(SkCanvas* canvas) {
     35         SkPaint p;
     36         p.setAntiAlias(fDoAAClip);
     37         p.setColor(SK_ColorYELLOW);
     38 
     39         canvas->save();
     40             // draw a yellow rect through a rect clip
     41             canvas->save();
     42                 canvas->androidFramework_setDeviceClipRestriction(SkIRect::MakeLTRB(100, 100, 300, 300));
     43                 canvas->drawColor(SK_ColorGREEN);
     44                 canvas->clipRect(SkRect::MakeLTRB(100, 200, 400, 500),
     45                                  kReplace_SkClipOp, fDoAAClip);
     46                 canvas->drawRect(SkRect::MakeLTRB(100, 200, 400, 500), p);
     47             canvas->restore();
     48 
     49             // draw a yellow rect through a diamond clip
     50             canvas->save();
     51                 canvas->androidFramework_setDeviceClipRestriction(SkIRect::MakeLTRB(500, 100, 800, 300));
     52                 canvas->drawColor(SK_ColorGREEN);
     53 
     54                 SkPath pathClip;
     55                 pathClip.moveTo(SkIntToScalar(650),  SkIntToScalar(200));
     56                 pathClip.lineTo(SkIntToScalar(900), SkIntToScalar(300));
     57                 pathClip.lineTo(SkIntToScalar(650), SkIntToScalar(400));
     58                 pathClip.lineTo(SkIntToScalar(650), SkIntToScalar(300));
     59                 pathClip.close();
     60                 canvas->clipPath(pathClip, kReplace_SkClipOp, fDoAAClip);
     61                 canvas->drawRect(SkRect::MakeLTRB(500, 200, 900, 500), p);
     62             canvas->restore();
     63 
     64             // draw a yellow rect through a round rect clip
     65             canvas->save();
     66                 canvas->androidFramework_setDeviceClipRestriction(SkIRect::MakeLTRB(500, 500, 800, 700));
     67                 canvas->drawColor(SK_ColorGREEN);
     68 
     69                 canvas->clipRRect(SkRRect::MakeOval(SkRect::MakeLTRB(500, 600, 900, 750)),
     70                                   kReplace_SkClipOp, fDoAAClip);
     71                 canvas->drawRect(SkRect::MakeLTRB(500, 600, 900, 750), p);
     72             canvas->restore();
     73 
     74             // fill the clip with yellow color showing that androidFramework_setDeviceClipRestriction
     75             // intersects with the current clip
     76             canvas->save();
     77                 canvas->clipRect(SkRect::MakeLTRB(100, 400, 300, 750),
     78                                  kIntersect_SkClipOp, fDoAAClip);
     79                 canvas->drawColor(SK_ColorGREEN);
     80                 canvas->androidFramework_setDeviceClipRestriction(SkIRect::MakeLTRB(150, 450, 250, 700));
     81                 canvas->drawColor(SK_ColorYELLOW);
     82             canvas->restore();
     83 
     84         canvas->restore();
     85     }
     86 private:
     87 
     88     bool fDoAAClip;
     89 
     90     typedef GM INHERITED;
     91 };
     92 
     93 //////////////////////////////////////////////////////////////////////////////
     94 
     95 DEF_GM(return new ComplexClip4GM(false);)
     96 DEF_GM(return new ComplexClip4GM(true);)
     97 }
     98