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#include "gm.h"
8#include "SkCanvas.h"
9#include "SkPaint.h"
10#include "SkRandom.h"
11
12namespace skiagm {
13
14class QuadPathGM : public GM {
15public:
16    QuadPathGM() {}
17
18protected:
19    virtual uint32_t onGetFlags() const SK_OVERRIDE {
20        return kSkipTiled_Flag;
21    }
22
23    SkString onShortName() {
24        return SkString("quadpath");
25    }
26
27    SkISize onISize() { return SkISize::Make(1240, 390); }
28
29    void drawPath(SkPath& path,SkCanvas* canvas,SkColor color,
30                  const SkRect& clip,SkPaint::Cap cap, SkPaint::Join join,
31                  SkPaint::Style style, SkPath::FillType fill,
32                  SkScalar strokeWidth) {
33        path.setFillType(fill);
34        SkPaint paint;
35        paint.setStrokeCap(cap);
36        paint.setStrokeWidth(strokeWidth);
37        paint.setStrokeJoin(join);
38        paint.setColor(color);
39        paint.setStyle(style);
40        canvas->save();
41        canvas->clipRect(clip);
42        canvas->drawPath(path, paint);
43        canvas->restore();
44    }
45
46    virtual void onDraw(SkCanvas* canvas) {
47        struct FillAndName {
48            SkPath::FillType fFill;
49            const char*      fName;
50        };
51        static const FillAndName gFills[] = {
52            {SkPath::kWinding_FillType, "Winding"},
53            {SkPath::kEvenOdd_FillType, "Even / Odd"},
54            {SkPath::kInverseWinding_FillType, "Inverse Winding"},
55            {SkPath::kInverseEvenOdd_FillType, "Inverse Even / Odd"},
56        };
57        struct StyleAndName {
58            SkPaint::Style fStyle;
59            const char*    fName;
60        };
61        static const StyleAndName gStyles[] = {
62            {SkPaint::kFill_Style, "Fill"},
63            {SkPaint::kStroke_Style, "Stroke"},
64            {SkPaint::kStrokeAndFill_Style, "Stroke And Fill"},
65        };
66        struct CapAndName {
67            SkPaint::Cap  fCap;
68            SkPaint::Join fJoin;
69            const char*   fName;
70        };
71        static const CapAndName gCaps[] = {
72            {SkPaint::kButt_Cap, SkPaint::kBevel_Join, "Butt"},
73            {SkPaint::kRound_Cap, SkPaint::kRound_Join, "Round"},
74            {SkPaint::kSquare_Cap, SkPaint::kBevel_Join, "Square"}
75        };
76        struct PathAndName {
77            SkPath      fPath;
78            const char* fName;
79        };
80        PathAndName path;
81        path.fPath.moveTo(25*SK_Scalar1, 10*SK_Scalar1);
82        path.fPath.quadTo(50*SK_Scalar1, 20*SK_Scalar1,
83                          75*SK_Scalar1, 10*SK_Scalar1);
84        path.fName = "moveTo-quad";
85
86        SkPaint titlePaint;
87        titlePaint.setColor(SK_ColorBLACK);
88        titlePaint.setAntiAlias(true);
89        sk_tool_utils::set_portable_typeface(&titlePaint);
90        titlePaint.setLCDRenderText(true);
91        titlePaint.setTextSize(15 * SK_Scalar1);
92        const char title[] = "Quad Drawn Into Rectangle Clips With "
93                             "Indicated Style, Fill and Linecaps, with stroke width 10";
94        canvas->drawText(title, strlen(title),
95                            20 * SK_Scalar1,
96                            20 * SK_Scalar1,
97                            titlePaint);
98
99        SkLCGRandom rand;
100        SkRect rect = SkRect::MakeWH(100*SK_Scalar1, 30*SK_Scalar1);
101        canvas->save();
102        canvas->translate(10 * SK_Scalar1, 30 * SK_Scalar1);
103        canvas->save();
104        for (size_t cap = 0; cap < SK_ARRAY_COUNT(gCaps); ++cap) {
105            if (0 < cap) {
106                canvas->translate((rect.width() + 40 * SK_Scalar1) * SK_ARRAY_COUNT(gStyles), 0);
107            }
108            canvas->save();
109            for (size_t fill = 0; fill < SK_ARRAY_COUNT(gFills); ++fill) {
110                if (0 < fill) {
111                    canvas->translate(0, rect.height() + 40 * SK_Scalar1);
112                }
113                canvas->save();
114                for (size_t style = 0; style < SK_ARRAY_COUNT(gStyles); ++style) {
115                    if (0 < style) {
116                        canvas->translate(rect.width() + 40 * SK_Scalar1, 0);
117                    }
118
119                    SkColor color = 0xff007000;
120                    this->drawPath(path.fPath, canvas, color, rect,
121                                    gCaps[cap].fCap, gCaps[cap].fJoin, gStyles[style].fStyle,
122                                    gFills[fill].fFill, SK_Scalar1*10);
123
124                    SkPaint rectPaint;
125                    rectPaint.setColor(SK_ColorBLACK);
126                    rectPaint.setStyle(SkPaint::kStroke_Style);
127                    rectPaint.setStrokeWidth(-1);
128                    rectPaint.setAntiAlias(true);
129                    canvas->drawRect(rect, rectPaint);
130
131                    SkPaint labelPaint;
132                    labelPaint.setColor(color);
133                    labelPaint.setAntiAlias(true);
134                    sk_tool_utils::set_portable_typeface(&labelPaint);
135                    labelPaint.setLCDRenderText(true);
136                    labelPaint.setTextSize(10 * SK_Scalar1);
137                    canvas->drawText(gStyles[style].fName,
138                                        strlen(gStyles[style].fName),
139                                        0, rect.height() + 12 * SK_Scalar1,
140                                        labelPaint);
141                    canvas->drawText(gFills[fill].fName,
142                                        strlen(gFills[fill].fName),
143                                        0, rect.height() + 24 * SK_Scalar1,
144                                        labelPaint);
145                    canvas->drawText(gCaps[cap].fName,
146                                        strlen(gCaps[cap].fName),
147                                        0, rect.height() + 36 * SK_Scalar1,
148                                        labelPaint);
149                }
150                canvas->restore();
151            }
152            canvas->restore();
153        }
154        canvas->restore();
155        canvas->restore();
156    }
157
158private:
159    typedef GM INHERITED;
160};
161
162class QuadClosePathGM : public GM {
163public:
164    QuadClosePathGM() {}
165
166protected:
167    virtual uint32_t onGetFlags() const SK_OVERRIDE {
168        return kSkipTiled_Flag;
169    }
170
171    SkString onShortName() {
172        return SkString("quadclosepath");
173    }
174
175    SkISize onISize() { return SkISize::Make(1240, 390); }
176
177    void drawPath(SkPath& path,SkCanvas* canvas,SkColor color,
178                  const SkRect& clip,SkPaint::Cap cap, SkPaint::Join join,
179                  SkPaint::Style style, SkPath::FillType fill,
180                  SkScalar strokeWidth) {
181        path.setFillType(fill);
182        SkPaint paint;
183        paint.setStrokeCap(cap);
184        paint.setStrokeWidth(strokeWidth);
185        paint.setStrokeJoin(join);
186        paint.setColor(color);
187        paint.setStyle(style);
188        canvas->save();
189        canvas->clipRect(clip);
190        canvas->drawPath(path, paint);
191        canvas->restore();
192    }
193
194    virtual void onDraw(SkCanvas* canvas) {
195        struct FillAndName {
196            SkPath::FillType fFill;
197            const char*      fName;
198        };
199        static const FillAndName gFills[] = {
200            {SkPath::kWinding_FillType, "Winding"},
201            {SkPath::kEvenOdd_FillType, "Even / Odd"},
202            {SkPath::kInverseWinding_FillType, "Inverse Winding"},
203            {SkPath::kInverseEvenOdd_FillType, "Inverse Even / Odd"},
204        };
205        struct StyleAndName {
206            SkPaint::Style fStyle;
207            const char*    fName;
208        };
209        static const StyleAndName gStyles[] = {
210            {SkPaint::kFill_Style, "Fill"},
211            {SkPaint::kStroke_Style, "Stroke"},
212            {SkPaint::kStrokeAndFill_Style, "Stroke And Fill"},
213        };
214        struct CapAndName {
215            SkPaint::Cap  fCap;
216            SkPaint::Join fJoin;
217            const char*   fName;
218        };
219        static const CapAndName gCaps[] = {
220            {SkPaint::kButt_Cap, SkPaint::kBevel_Join, "Butt"},
221            {SkPaint::kRound_Cap, SkPaint::kRound_Join, "Round"},
222            {SkPaint::kSquare_Cap, SkPaint::kBevel_Join, "Square"}
223        };
224        struct PathAndName {
225            SkPath      fPath;
226            const char* fName;
227        };
228        PathAndName path;
229        path.fPath.moveTo(25*SK_Scalar1, 10*SK_Scalar1);
230        path.fPath.quadTo(50*SK_Scalar1, 20*SK_Scalar1,
231                          75*SK_Scalar1, 10*SK_Scalar1);
232        path.fPath.close();
233        path.fName = "moveTo-quad-close";
234
235        SkPaint titlePaint;
236        titlePaint.setColor(SK_ColorBLACK);
237        titlePaint.setAntiAlias(true);
238        sk_tool_utils::set_portable_typeface(&titlePaint);
239        titlePaint.setLCDRenderText(true);
240        titlePaint.setTextSize(15 * SK_Scalar1);
241        const char title[] = "Quad Closed Drawn Into Rectangle Clips With "
242                             "Indicated Style, Fill and Linecaps, with stroke width 10";
243        canvas->drawText(title, strlen(title),
244                            20 * SK_Scalar1,
245                            20 * SK_Scalar1,
246                            titlePaint);
247
248        SkLCGRandom rand;
249        SkRect rect = SkRect::MakeWH(100*SK_Scalar1, 30*SK_Scalar1);
250        canvas->save();
251        canvas->translate(10 * SK_Scalar1, 30 * SK_Scalar1);
252        canvas->save();
253        for (size_t cap = 0; cap < SK_ARRAY_COUNT(gCaps); ++cap) {
254            if (0 < cap) {
255                canvas->translate((rect.width() + 40 * SK_Scalar1) * SK_ARRAY_COUNT(gStyles), 0);
256            }
257            canvas->save();
258            for (size_t fill = 0; fill < SK_ARRAY_COUNT(gFills); ++fill) {
259                if (0 < fill) {
260                    canvas->translate(0, rect.height() + 40 * SK_Scalar1);
261                }
262                canvas->save();
263                for (size_t style = 0; style < SK_ARRAY_COUNT(gStyles); ++style) {
264                    if (0 < style) {
265                        canvas->translate(rect.width() + 40 * SK_Scalar1, 0);
266                    }
267
268                    SkColor color = 0xff007000;
269                    this->drawPath(path.fPath, canvas, color, rect,
270                                    gCaps[cap].fCap, gCaps[cap].fJoin, gStyles[style].fStyle,
271                                    gFills[fill].fFill, SK_Scalar1*10);
272
273                    SkPaint rectPaint;
274                    rectPaint.setColor(SK_ColorBLACK);
275                    rectPaint.setStyle(SkPaint::kStroke_Style);
276                    rectPaint.setStrokeWidth(-1);
277                    rectPaint.setAntiAlias(true);
278                    canvas->drawRect(rect, rectPaint);
279
280                    SkPaint labelPaint;
281                    labelPaint.setColor(color);
282                    labelPaint.setAntiAlias(true);
283                    sk_tool_utils::set_portable_typeface(&labelPaint);
284                    labelPaint.setLCDRenderText(true);
285                    labelPaint.setTextSize(10 * SK_Scalar1);
286                    canvas->drawText(gStyles[style].fName,
287                                        strlen(gStyles[style].fName),
288                                        0, rect.height() + 12 * SK_Scalar1,
289                                        labelPaint);
290                    canvas->drawText(gFills[fill].fName,
291                                        strlen(gFills[fill].fName),
292                                        0, rect.height() + 24 * SK_Scalar1,
293                                        labelPaint);
294                    canvas->drawText(gCaps[cap].fName,
295                                        strlen(gCaps[cap].fName),
296                                        0, rect.height() + 36 * SK_Scalar1,
297                                        labelPaint);
298                }
299                canvas->restore();
300            }
301            canvas->restore();
302        }
303        canvas->restore();
304        canvas->restore();
305    }
306
307private:
308    typedef GM INHERITED;
309};
310
311//////////////////////////////////////////////////////////////////////////////
312
313static GM* QuadPathFactory(void*) { return new QuadPathGM; }
314static GMRegistry regQuadPath(QuadPathFactory);
315
316static GM* QuadClosePathFactory(void*) { return new QuadClosePathGM; }
317static GMRegistry regQuadClosePath(QuadClosePathFactory);
318
319}
320