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
12 namespace skiagm {
13
14 class QuadPathGM : public GM {
15 public:
QuadPathGM()16 QuadPathGM() {}
17
18 protected:
onGetFlags() const19 virtual uint32_t onGetFlags() const SK_OVERRIDE {
20 return kSkipTiled_Flag;
21 }
22
onShortName()23 SkString onShortName() {
24 return SkString("quadpath");
25 }
26
onISize()27 SkISize onISize() { return SkISize::Make(1240, 390); }
28
drawPath(SkPath & path,SkCanvas * canvas,SkColor color,const SkRect & clip,SkPaint::Cap cap,SkPaint::Join join,SkPaint::Style style,SkPath::FillType fill,SkScalar strokeWidth)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
onDraw(SkCanvas * canvas)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 titlePaint.setLCDRenderText(true);
90 titlePaint.setTextSize(15 * SK_Scalar1);
91 const char title[] = "Quad Drawn Into Rectangle Clips With "
92 "Indicated Style, Fill and Linecaps, with stroke width 10";
93 canvas->drawText(title, strlen(title),
94 20 * SK_Scalar1,
95 20 * SK_Scalar1,
96 titlePaint);
97
98 SkLCGRandom rand;
99 SkRect rect = SkRect::MakeWH(100*SK_Scalar1, 30*SK_Scalar1);
100 canvas->save();
101 canvas->translate(10 * SK_Scalar1, 30 * SK_Scalar1);
102 canvas->save();
103 for (size_t cap = 0; cap < SK_ARRAY_COUNT(gCaps); ++cap) {
104 if (0 < cap) {
105 canvas->translate((rect.width() + 40 * SK_Scalar1) * SK_ARRAY_COUNT(gStyles), 0);
106 }
107 canvas->save();
108 for (size_t fill = 0; fill < SK_ARRAY_COUNT(gFills); ++fill) {
109 if (0 < fill) {
110 canvas->translate(0, rect.height() + 40 * SK_Scalar1);
111 }
112 canvas->save();
113 for (size_t style = 0; style < SK_ARRAY_COUNT(gStyles); ++style) {
114 if (0 < style) {
115 canvas->translate(rect.width() + 40 * SK_Scalar1, 0);
116 }
117
118 SkColor color = 0xff007000;
119 this->drawPath(path.fPath, canvas, color, rect,
120 gCaps[cap].fCap, gCaps[cap].fJoin, gStyles[style].fStyle,
121 gFills[fill].fFill, SK_Scalar1*10);
122
123 SkPaint rectPaint;
124 rectPaint.setColor(SK_ColorBLACK);
125 rectPaint.setStyle(SkPaint::kStroke_Style);
126 rectPaint.setStrokeWidth(-1);
127 rectPaint.setAntiAlias(true);
128 canvas->drawRect(rect, rectPaint);
129
130 SkPaint labelPaint;
131 labelPaint.setColor(color);
132 labelPaint.setAntiAlias(true);
133 labelPaint.setLCDRenderText(true);
134 labelPaint.setTextSize(10 * SK_Scalar1);
135 canvas->drawText(gStyles[style].fName,
136 strlen(gStyles[style].fName),
137 0, rect.height() + 12 * SK_Scalar1,
138 labelPaint);
139 canvas->drawText(gFills[fill].fName,
140 strlen(gFills[fill].fName),
141 0, rect.height() + 24 * SK_Scalar1,
142 labelPaint);
143 canvas->drawText(gCaps[cap].fName,
144 strlen(gCaps[cap].fName),
145 0, rect.height() + 36 * SK_Scalar1,
146 labelPaint);
147 }
148 canvas->restore();
149 }
150 canvas->restore();
151 }
152 canvas->restore();
153 canvas->restore();
154 }
155
156 private:
157 typedef GM INHERITED;
158 };
159
160 class QuadClosePathGM : public GM {
161 public:
QuadClosePathGM()162 QuadClosePathGM() {}
163
164 protected:
onGetFlags() const165 virtual uint32_t onGetFlags() const SK_OVERRIDE {
166 return kSkipTiled_Flag;
167 }
168
onShortName()169 SkString onShortName() {
170 return SkString("quadclosepath");
171 }
172
onISize()173 SkISize onISize() { return SkISize::Make(1240, 390); }
174
drawPath(SkPath & path,SkCanvas * canvas,SkColor color,const SkRect & clip,SkPaint::Cap cap,SkPaint::Join join,SkPaint::Style style,SkPath::FillType fill,SkScalar strokeWidth)175 void drawPath(SkPath& path,SkCanvas* canvas,SkColor color,
176 const SkRect& clip,SkPaint::Cap cap, SkPaint::Join join,
177 SkPaint::Style style, SkPath::FillType fill,
178 SkScalar strokeWidth) {
179 path.setFillType(fill);
180 SkPaint paint;
181 paint.setStrokeCap(cap);
182 paint.setStrokeWidth(strokeWidth);
183 paint.setStrokeJoin(join);
184 paint.setColor(color);
185 paint.setStyle(style);
186 canvas->save();
187 canvas->clipRect(clip);
188 canvas->drawPath(path, paint);
189 canvas->restore();
190 }
191
onDraw(SkCanvas * canvas)192 virtual void onDraw(SkCanvas* canvas) {
193 struct FillAndName {
194 SkPath::FillType fFill;
195 const char* fName;
196 };
197 static const FillAndName gFills[] = {
198 {SkPath::kWinding_FillType, "Winding"},
199 {SkPath::kEvenOdd_FillType, "Even / Odd"},
200 {SkPath::kInverseWinding_FillType, "Inverse Winding"},
201 {SkPath::kInverseEvenOdd_FillType, "Inverse Even / Odd"},
202 };
203 struct StyleAndName {
204 SkPaint::Style fStyle;
205 const char* fName;
206 };
207 static const StyleAndName gStyles[] = {
208 {SkPaint::kFill_Style, "Fill"},
209 {SkPaint::kStroke_Style, "Stroke"},
210 {SkPaint::kStrokeAndFill_Style, "Stroke And Fill"},
211 };
212 struct CapAndName {
213 SkPaint::Cap fCap;
214 SkPaint::Join fJoin;
215 const char* fName;
216 };
217 static const CapAndName gCaps[] = {
218 {SkPaint::kButt_Cap, SkPaint::kBevel_Join, "Butt"},
219 {SkPaint::kRound_Cap, SkPaint::kRound_Join, "Round"},
220 {SkPaint::kSquare_Cap, SkPaint::kBevel_Join, "Square"}
221 };
222 struct PathAndName {
223 SkPath fPath;
224 const char* fName;
225 };
226 PathAndName path;
227 path.fPath.moveTo(25*SK_Scalar1, 10*SK_Scalar1);
228 path.fPath.quadTo(50*SK_Scalar1, 20*SK_Scalar1,
229 75*SK_Scalar1, 10*SK_Scalar1);
230 path.fPath.close();
231 path.fName = "moveTo-quad-close";
232
233 SkPaint titlePaint;
234 titlePaint.setColor(SK_ColorBLACK);
235 titlePaint.setAntiAlias(true);
236 titlePaint.setLCDRenderText(true);
237 titlePaint.setTextSize(15 * SK_Scalar1);
238 const char title[] = "Quad Closed Drawn Into Rectangle Clips With "
239 "Indicated Style, Fill and Linecaps, with stroke width 10";
240 canvas->drawText(title, strlen(title),
241 20 * SK_Scalar1,
242 20 * SK_Scalar1,
243 titlePaint);
244
245 SkLCGRandom rand;
246 SkRect rect = SkRect::MakeWH(100*SK_Scalar1, 30*SK_Scalar1);
247 canvas->save();
248 canvas->translate(10 * SK_Scalar1, 30 * SK_Scalar1);
249 canvas->save();
250 for (size_t cap = 0; cap < SK_ARRAY_COUNT(gCaps); ++cap) {
251 if (0 < cap) {
252 canvas->translate((rect.width() + 40 * SK_Scalar1) * SK_ARRAY_COUNT(gStyles), 0);
253 }
254 canvas->save();
255 for (size_t fill = 0; fill < SK_ARRAY_COUNT(gFills); ++fill) {
256 if (0 < fill) {
257 canvas->translate(0, rect.height() + 40 * SK_Scalar1);
258 }
259 canvas->save();
260 for (size_t style = 0; style < SK_ARRAY_COUNT(gStyles); ++style) {
261 if (0 < style) {
262 canvas->translate(rect.width() + 40 * SK_Scalar1, 0);
263 }
264
265 SkColor color = 0xff007000;
266 this->drawPath(path.fPath, canvas, color, rect,
267 gCaps[cap].fCap, gCaps[cap].fJoin, gStyles[style].fStyle,
268 gFills[fill].fFill, SK_Scalar1*10);
269
270 SkPaint rectPaint;
271 rectPaint.setColor(SK_ColorBLACK);
272 rectPaint.setStyle(SkPaint::kStroke_Style);
273 rectPaint.setStrokeWidth(-1);
274 rectPaint.setAntiAlias(true);
275 canvas->drawRect(rect, rectPaint);
276
277 SkPaint labelPaint;
278 labelPaint.setColor(color);
279 labelPaint.setAntiAlias(true);
280 labelPaint.setLCDRenderText(true);
281 labelPaint.setTextSize(10 * SK_Scalar1);
282 canvas->drawText(gStyles[style].fName,
283 strlen(gStyles[style].fName),
284 0, rect.height() + 12 * SK_Scalar1,
285 labelPaint);
286 canvas->drawText(gFills[fill].fName,
287 strlen(gFills[fill].fName),
288 0, rect.height() + 24 * SK_Scalar1,
289 labelPaint);
290 canvas->drawText(gCaps[cap].fName,
291 strlen(gCaps[cap].fName),
292 0, rect.height() + 36 * SK_Scalar1,
293 labelPaint);
294 }
295 canvas->restore();
296 }
297 canvas->restore();
298 }
299 canvas->restore();
300 canvas->restore();
301 }
302
303 private:
304 typedef GM INHERITED;
305 };
306
307 //////////////////////////////////////////////////////////////////////////////
308
QuadPathFactory(void *)309 static GM* QuadPathFactory(void*) { return new QuadPathGM; }
310 static GMRegistry regQuadPath(QuadPathFactory);
311
QuadClosePathFactory(void *)312 static GM* QuadClosePathFactory(void*) { return new QuadClosePathGM; }
313 static GMRegistry regQuadClosePath(QuadClosePathFactory);
314
315 }
316