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 "SkGradientShader.h"
12#include "SkGraphics.h"
13#include "SkImageDecoder.h"
14#include "SkPath.h"
15#include "SkRegion.h"
16#include "SkShader.h"
17#include "SkUtils.h"
18#include "SkXfermode.h"
19#include "SkColorPriv.h"
20#include "SkColorFilter.h"
21#include "SkTime.h"
22#include "SkTypeface.h"
23
24#include "SkOSFile.h"
25#include "SkStream.h"
26
27#include "SkGpuDevice.h"
28
29static void make_bitmap(SkBitmap* bitmap, GrContext* ctx) {
30    SkCanvas canvas;
31
32    if (ctx) {
33        SkDevice* dev = new SkGpuDevice(ctx, SkBitmap::kARGB_8888_Config, 64, 64);
34        canvas.setDevice(dev)->unref();
35        *bitmap = dev->accessBitmap(false);
36    } else {
37        bitmap->setConfig(SkBitmap::kARGB_8888_Config, 64, 64);
38        bitmap->allocPixels();
39        canvas.setBitmapDevice(*bitmap);
40    }
41
42    canvas.drawColor(SK_ColorRED);
43    SkPaint paint;
44    paint.setAntiAlias(true);
45    const SkPoint pts[] = { { 0, 0 }, { 64, 64 } };
46    const SkColor colors[] = { SK_ColorWHITE, SK_ColorBLUE };
47    paint.setShader(SkGradientShader::CreateLinear(pts, colors, NULL, 2,
48                                                   SkShader::kClamp_TileMode))->unref();
49    canvas.drawCircle(32, 32, 32, paint);
50}
51
52class BitmapRectView : public SampleView {
53public:
54	BitmapRectView() {
55        this->setBGColor(SK_ColorGRAY);
56    }
57
58protected:
59    // overrides from SkEventSink
60    virtual bool onQuery(SkEvent* evt) {
61        if (SampleCode::TitleQ(*evt)) {
62            SampleCode::TitleR(evt, "BitmapRect");
63            return true;
64        }
65        return this->INHERITED::onQuery(evt);
66    }
67
68    virtual void onDrawContent(SkCanvas* canvas) {
69        GrContext* ctx = SampleCode::GetGr();
70
71        const SkIRect src[] = {
72            { 0, 0, 32, 32 },
73            { 0, 0, 80, 80 },
74            { 32, 32, 96, 96 },
75            { -32, -32, 32, 32, }
76        };
77
78        SkPaint paint;
79        paint.setStyle(SkPaint::kStroke_Style);
80        paint.setColor(ctx ? SK_ColorGREEN : SK_ColorYELLOW);
81
82        SkBitmap bitmap;
83        make_bitmap(&bitmap, ctx);
84
85        SkRect dstR = { 0, 200, 128, 380 };
86
87        canvas->translate(16, 40);
88        for (size_t i = 0; i < SK_ARRAY_COUNT(src); i++) {
89            SkRect srcR;
90            srcR.set(src[i]);
91
92            canvas->drawBitmap(bitmap, 0, 0, &paint);
93            canvas->drawBitmapRect(bitmap, &src[i], dstR, &paint);
94
95            canvas->drawRect(dstR, paint);
96            canvas->drawRect(srcR, paint);
97
98            canvas->translate(160, 0);
99        }
100    }
101
102private:
103    typedef SkView INHERITED;
104};
105
106//////////////////////////////////////////////////////////////////////////////
107
108static SkView* MyFactory() { return new BitmapRectView; }
109static SkViewRegister reg(MyFactory);
110
111