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 "SkShader.h"
10using namespace skiagm;
11
12GM::GM() {
13    fMode = kGM_Mode;
14    fBGColor = SK_ColorWHITE;
15    fCanvasIsDeferred = false;
16    fHaveCalledOnceBeforeDraw = false;
17    fStarterMatrix.reset();
18}
19
20GM::~GM() {}
21
22void GM::draw(SkCanvas* canvas) {
23    this->drawBackground(canvas);
24    this->drawContent(canvas);
25}
26
27void GM::drawContent(SkCanvas* canvas) {
28    if (!fHaveCalledOnceBeforeDraw) {
29        fHaveCalledOnceBeforeDraw = true;
30        this->onOnceBeforeDraw();
31    }
32    this->onDraw(canvas);
33}
34
35void GM::drawBackground(SkCanvas* canvas) {
36    if (!fHaveCalledOnceBeforeDraw) {
37        fHaveCalledOnceBeforeDraw = true;
38        this->onOnceBeforeDraw();
39    }
40    this->onDrawBackground(canvas);
41}
42
43const char* GM::getName() {
44    if (fShortName.size() == 0) {
45        fShortName = this->onShortName();
46    }
47    return fShortName.c_str();
48}
49
50void GM::setBGColor(SkColor color) {
51    fBGColor = color;
52}
53
54bool GM::animate(const SkAnimTimer& timer) {
55    return this->onAnimate(timer);
56}
57
58/////////////////////////////////////////////////////////////////////////////////////////////
59
60void GM::onDrawBackground(SkCanvas* canvas) {
61    canvas->drawColor(fBGColor, SkXfermode::kSrc_Mode);
62}
63
64void GM::drawSizeBounds(SkCanvas* canvas, SkColor color) {
65    SkISize size = this->getISize();
66    SkRect r = SkRect::MakeWH(SkIntToScalar(size.width()),
67                              SkIntToScalar(size.height()));
68    SkPaint paint;
69    paint.setColor(color);
70    canvas->drawRect(r, paint);
71}
72
73void GM::drawGpuOnlyMessage(SkCanvas* canvas) {
74    SkBitmap bmp;
75    bmp.allocN32Pixels(128, 64);
76    SkCanvas bmpCanvas(bmp);
77    bmpCanvas.drawColor(SK_ColorWHITE);
78    SkPaint paint;
79    paint.setAntiAlias(true);
80    paint.setTextSize(20);
81    paint.setColor(SK_ColorRED);
82    static const char kTxt[] = "GPU Only";
83    bmpCanvas.drawText(kTxt, strlen(kTxt), 20, 40, paint);
84    SkMatrix localM;
85    localM.setRotate(35.f);
86    localM.postTranslate(10.f, 0.f);
87    SkAutoTUnref<SkShader> shader(SkShader::CreateBitmapShader(bmp, SkShader::kMirror_TileMode,
88                                                               SkShader::kMirror_TileMode,
89                                                               &localM));
90    paint.setShader(shader);
91    paint.setFilterQuality(kMedium_SkFilterQuality);
92    canvas->drawPaint(paint);
93    return;
94}
95
96// need to explicitly declare this, or we get some weird infinite loop llist
97template GMRegistry* GMRegistry::gHead;
98
99void skiagm::SimpleGM::onDraw(SkCanvas* canvas) {
100    fDrawProc(canvas);
101}
102
103SkISize skiagm::SimpleGM::onISize() {
104    return fSize;
105}
106
107SkString skiagm::SimpleGM::onShortName() {
108    return fName;
109}
110
111