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      1 /*
      2  * Copyright 2011 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 
      8 #include "gm.h"
      9 #include "SkCanvas.h"
     10 #include "SkPath.h"
     11 #include "SkTypeface.h"
     12 
     13 namespace skiagm {
     14 
     15 class StrokeFillGM : public GM {
     16 public:
     17     StrokeFillGM() {
     18 
     19     }
     20 
     21 protected:
     22     virtual SkString onShortName() {
     23         return SkString("stroke-fill");
     24     }
     25 
     26     virtual SkISize onISize() {
     27         return make_isize(640, 480);
     28     }
     29 
     30     static void show_bold(SkCanvas* canvas, const void* text, int len,
     31                           SkScalar x, SkScalar y, const SkPaint& paint) {
     32         SkPaint p(paint);
     33         canvas->drawText(text, len, x, y, p);
     34         p.setFakeBoldText(true);
     35         canvas->drawText(text, len, x, y + SkIntToScalar(120), p);
     36     }
     37 
     38     virtual void onDraw(SkCanvas* canvas) {
     39         SkScalar x = SkIntToScalar(100);
     40         SkScalar y = SkIntToScalar(88);
     41 
     42         SkPaint paint;
     43         paint.setAntiAlias(true);
     44         paint.setTextSize(SkIntToScalar(100));
     45         paint.setStrokeWidth(SkIntToScalar(5));
     46 
     47         SkTypeface* face = SkTypeface::CreateFromName("Papyrus", SkTypeface::kNormal);
     48         SkSafeUnref(paint.setTypeface(face));
     49         show_bold(canvas, "Hello", 5, x, y, paint);
     50 
     51         face = SkTypeface::CreateFromName("Hiragino Maru Gothic Pro", SkTypeface::kNormal);
     52         SkSafeUnref(paint.setTypeface(face));
     53         const unsigned char hyphen[] = { 0xE3, 0x83, 0xBC };
     54         show_bold(canvas, hyphen, SK_ARRAY_COUNT(hyphen), x + SkIntToScalar(300), y, paint);
     55 
     56         paint.setStyle(SkPaint::kStrokeAndFill_Style);
     57 
     58         SkPath path;
     59         path.setFillType(SkPath::kWinding_FillType);
     60         path.addCircle(x, y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCW_Direction);
     61         path.addCircle(x, y + SkIntToScalar(200), SkIntToScalar(40), SkPath::kCCW_Direction);
     62         canvas->drawPath(path, paint);
     63 
     64         SkPath path2;
     65         path2.setFillType(SkPath::kWinding_FillType);
     66         path2.addCircle(x + SkIntToScalar(120), y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCCW_Direction);
     67         path2.addCircle(x + SkIntToScalar(120), y + SkIntToScalar(200), SkIntToScalar(40), SkPath::kCW_Direction);
     68         canvas->drawPath(path2, paint);
     69 
     70         path2.reset();
     71         path2.addCircle(x + SkIntToScalar(240), y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCCW_Direction);
     72         canvas->drawPath(path2, paint);
     73         SkASSERT(path2.cheapIsDirection(SkPath::kCCW_Direction));
     74 
     75         path2.reset();
     76         SkASSERT(!path2.cheapComputeDirection(NULL));
     77         path2.addCircle(x + SkIntToScalar(360), y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCW_Direction);
     78         SkASSERT(path2.cheapIsDirection(SkPath::kCW_Direction));
     79         canvas->drawPath(path2, paint);
     80     }
     81 
     82 private:
     83     typedef GM INHERITED;
     84 };
     85 
     86 //////////////////////////////////////////////////////////////////////////////
     87 
     88 static GM* MyFactory(void*) { return new StrokeFillGM; }
     89 static GMRegistry reg(MyFactory);
     90 
     91 }
     92