blob: 5603655fada1e8e347a08bcebb3626a7c52dbcfc [file] [log] [blame]
epoger@google.comec3ed6a2011-07-28 14:26:00 +00001
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 */
bsalomon@google.com807cec42011-03-10 19:20:15 +00008#include "gm.h"
9#include "SkCanvas.h"
10//#include "SkParsePath.h"
11#include "SkPath.h"
12//#include "SkRandom.h"
13
14namespace skiagm {
15
reed@google.coma8f60f22011-12-08 16:18:29 +000016static const SkColor gPathColor = SK_ColorBLACK;
17static const SkColor gClipAColor = SK_ColorBLUE;
18static const SkColor gClipBColor = SK_ColorRED;
19
bsalomon@google.com807cec42011-03-10 19:20:15 +000020class ComplexClipGM : public GM {
21public:
bsalomon6ae83cf2014-12-17 14:38:49 -080022 ComplexClipGM(bool aaclip, bool saveLayer, bool invertDraw)
robertphillips@google.com50a69a02012-07-12 13:48:46 +000023 : fDoAAClip(aaclip)
bsalomon6ae83cf2014-12-17 14:38:49 -080024 , fDoSaveLayer(saveLayer)
25 , fInvertDraw(invertDraw) {
reed@google.coma8f60f22011-12-08 16:18:29 +000026 this->setBGColor(0xFFDDDDDD);
bsalomon@google.com807cec42011-03-10 19:20:15 +000027 }
28
29protected:
commit-bot@chromium.orga90c6802014-04-30 13:20:45 +000030
bsalomon@google.com807cec42011-03-10 19:20:15 +000031
32 SkString onShortName() {
reed@google.coma8f60f22011-12-08 16:18:29 +000033 SkString str;
bsalomon6ae83cf2014-12-17 14:38:49 -080034 str.printf("complexclip_%s%s%s",
robertphillips@google.com50a69a02012-07-12 13:48:46 +000035 fDoAAClip ? "aa" : "bw",
bsalomon6ae83cf2014-12-17 14:38:49 -080036 fDoSaveLayer ? "_layer" : "",
37 fInvertDraw ? "_invert" : "");
reed@google.coma8f60f22011-12-08 16:18:29 +000038 return str;
bsalomon@google.com807cec42011-03-10 19:20:15 +000039 }
40
tfarinaf5393182014-06-09 23:59:03 -070041 SkISize onISize() { return SkISize::Make(970, 780); }
bsalomon@google.com807cec42011-03-10 19:20:15 +000042
bsalomon@google.com807cec42011-03-10 19:20:15 +000043 virtual void onDraw(SkCanvas* canvas) {
44 SkPath path;
45 path.moveTo(SkIntToScalar(0), SkIntToScalar(50));
46 path.quadTo(SkIntToScalar(0), SkIntToScalar(0), SkIntToScalar(50), SkIntToScalar(0));
47 path.lineTo(SkIntToScalar(175), SkIntToScalar(0));
48 path.quadTo(SkIntToScalar(200), SkIntToScalar(0), SkIntToScalar(200), SkIntToScalar(25));
49 path.lineTo(SkIntToScalar(200), SkIntToScalar(150));
50 path.quadTo(SkIntToScalar(200), SkIntToScalar(200), SkIntToScalar(150), SkIntToScalar(200));
51 path.lineTo(SkIntToScalar(0), SkIntToScalar(200));
52 path.close();
53 path.moveTo(SkIntToScalar(50), SkIntToScalar(50));
54 path.lineTo(SkIntToScalar(150), SkIntToScalar(50));
55 path.lineTo(SkIntToScalar(150), SkIntToScalar(125));
56 path.quadTo(SkIntToScalar(150), SkIntToScalar(150), SkIntToScalar(125), SkIntToScalar(150));
57 path.lineTo(SkIntToScalar(50), SkIntToScalar(150));
58 path.close();
bsalomon6ae83cf2014-12-17 14:38:49 -080059 if (fInvertDraw) {
60 path.setFillType(SkPath::kInverseEvenOdd_FillType);
61 } else {
62 path.setFillType(SkPath::kEvenOdd_FillType);
63 }
bsalomon@google.com807cec42011-03-10 19:20:15 +000064 SkPaint pathPaint;
65 pathPaint.setAntiAlias(true);
reed@google.coma8f60f22011-12-08 16:18:29 +000066 pathPaint.setColor(gPathColor);
bsalomon@google.com807cec42011-03-10 19:20:15 +000067
68 SkPath clipA;
69 clipA.moveTo(SkIntToScalar(10), SkIntToScalar(20));
70 clipA.lineTo(SkIntToScalar(165), SkIntToScalar(22));
71 clipA.lineTo(SkIntToScalar(70), SkIntToScalar(105));
72 clipA.lineTo(SkIntToScalar(165), SkIntToScalar(177));
73 clipA.lineTo(SkIntToScalar(-5), SkIntToScalar(180));
74 clipA.close();
bsalomon@google.com807cec42011-03-10 19:20:15 +000075
76 SkPath clipB;
77 clipB.moveTo(SkIntToScalar(40), SkIntToScalar(10));
78 clipB.lineTo(SkIntToScalar(190), SkIntToScalar(15));
79 clipB.lineTo(SkIntToScalar(195), SkIntToScalar(190));
80 clipB.lineTo(SkIntToScalar(40), SkIntToScalar(185));
81 clipB.lineTo(SkIntToScalar(155), SkIntToScalar(100));
82 clipB.close();
bsalomon@google.com807cec42011-03-10 19:20:15 +000083
bsalomon@google.com807cec42011-03-10 19:20:15 +000084 SkPaint paint;
85 paint.setAntiAlias(true);
caryclark5fb6bd42014-06-23 11:25:00 -070086 sk_tool_utils::set_portable_typeface(&paint);
reed@google.coma8f60f22011-12-08 16:18:29 +000087 paint.setTextSize(SkIntToScalar(20));
bsalomon@google.com807cec42011-03-10 19:20:15 +000088
89 static const struct {
90 SkRegion::Op fOp;
91 const char* fName;
92 } gOps[] = { //extra spaces in names for measureText
93 {SkRegion::kIntersect_Op, "Isect "},
94 {SkRegion::kDifference_Op, "Diff " },
95 {SkRegion::kUnion_Op, "Union "},
96 {SkRegion::kXOR_Op, "Xor " },
97 {SkRegion::kReverseDifference_Op, "RDiff "}
98 };
99
reed@google.coma8f60f22011-12-08 16:18:29 +0000100 canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
bsalomon@google.com807cec42011-03-10 19:20:15 +0000101 canvas->scale(3 * SK_Scalar1 / 4, 3 * SK_Scalar1 / 4);
bsalomon@google.com807cec42011-03-10 19:20:15 +0000102
robertphillips@google.com54bb7ab2012-07-13 14:55:25 +0000103 if (fDoSaveLayer) {
104 // We want the layer to appear symmetric relative to actual
105 // device boundaries so we need to "undo" the effect of the
106 // scale and translate
107 SkRect bounds = SkRect::MakeLTRB(
commit-bot@chromium.org4b413c82013-11-25 19:44:07 +0000108 4.0f/3.0f * -20,
109 4.0f/3.0f * -20,
110 4.0f/3.0f * (this->getISize().fWidth - 20),
111 4.0f/3.0f * (this->getISize().fHeight - 20));
robertphillips@google.com54bb7ab2012-07-13 14:55:25 +0000112
113 bounds.inset(SkIntToScalar(100), SkIntToScalar(100));
robertphillips@google.com50a69a02012-07-12 13:48:46 +0000114 SkPaint boundPaint;
115 boundPaint.setColor(SK_ColorRED);
116 boundPaint.setStyle(SkPaint::kStroke_Style);
117 canvas->drawRect(bounds, boundPaint);
118 canvas->saveLayer(&bounds, NULL);
119 }
120
reed@google.coma8f60f22011-12-08 16:18:29 +0000121 for (int invBits = 0; invBits < 4; ++invBits) {
122 canvas->save();
bsalomon@google.com807cec42011-03-10 19:20:15 +0000123 for (size_t op = 0; op < SK_ARRAY_COUNT(gOps); ++op) {
reed@google.coma8f60f22011-12-08 16:18:29 +0000124 this->drawHairlines(canvas, path, clipA, clipB);
125
126 bool doInvA = SkToBool(invBits & 1);
127 bool doInvB = SkToBool(invBits & 2);
bsalomon@google.com807cec42011-03-10 19:20:15 +0000128 canvas->save();
129 // set clip
reed@google.coma8f60f22011-12-08 16:18:29 +0000130 clipA.setFillType(doInvA ? SkPath::kInverseEvenOdd_FillType :
131 SkPath::kEvenOdd_FillType);
132 clipB.setFillType(doInvB ? SkPath::kInverseEvenOdd_FillType :
133 SkPath::kEvenOdd_FillType);
134 canvas->clipPath(clipA, SkRegion::kIntersect_Op, fDoAAClip);
135 canvas->clipPath(clipB, gOps[op].fOp, fDoAAClip);
bsalomon@google.com807cec42011-03-10 19:20:15 +0000136
bsalomon6ae83cf2014-12-17 14:38:49 -0800137 // In the inverse case we need to prevent the draw from covering the whole
138 // canvas.
139 if (fInvertDraw) {
140 SkRect rectClip = clipA.getBounds();
141 rectClip.join(path.getBounds());
142 rectClip.join(path.getBounds());
143 rectClip.outset(5, 5);
144 canvas->clipRect(rectClip);
145 }
146
bsalomon@google.com807cec42011-03-10 19:20:15 +0000147 // draw path clipped
148 canvas->drawPath(path, pathPaint);
149 canvas->restore();
150
bsalomon@google.com807cec42011-03-10 19:20:15 +0000151
reed@google.coma8f60f22011-12-08 16:18:29 +0000152 SkScalar txtX = SkIntToScalar(45);
153 paint.setColor(gClipAColor);
154 const char* aTxt = doInvA ? "InvA " : "A ";
bsalomon@google.com807cec42011-03-10 19:20:15 +0000155 canvas->drawText(aTxt, strlen(aTxt), txtX, SkIntToScalar(220), paint);
156 txtX += paint.measureText(aTxt, strlen(aTxt));
157 paint.setColor(SK_ColorBLACK);
158 canvas->drawText(gOps[op].fName, strlen(gOps[op].fName),
159 txtX, SkIntToScalar(220), paint);
160 txtX += paint.measureText(gOps[op].fName, strlen(gOps[op].fName));
reed@google.coma8f60f22011-12-08 16:18:29 +0000161 paint.setColor(gClipBColor);
162 const char* bTxt = doInvB ? "InvB " : "B ";
163 canvas->drawText(bTxt, strlen(bTxt), txtX, SkIntToScalar(220), paint);
bsalomon@google.com807cec42011-03-10 19:20:15 +0000164
165 canvas->translate(SkIntToScalar(250),0);
166 }
reed@google.coma8f60f22011-12-08 16:18:29 +0000167 canvas->restore();
168 canvas->translate(0, SkIntToScalar(250));
bsalomon@google.com807cec42011-03-10 19:20:15 +0000169 }
robertphillips@google.com50a69a02012-07-12 13:48:46 +0000170
robertphillips@google.com54bb7ab2012-07-13 14:55:25 +0000171 if (fDoSaveLayer) {
robertphillips@google.com50a69a02012-07-12 13:48:46 +0000172 canvas->restore();
173 }
bsalomon@google.com807cec42011-03-10 19:20:15 +0000174 }
175private:
reed@google.coma8f60f22011-12-08 16:18:29 +0000176 void drawHairlines(SkCanvas* canvas, const SkPath& path,
177 const SkPath& clipA, const SkPath& clipB) {
178 SkPaint paint;
179 paint.setAntiAlias(true);
180 paint.setStyle(SkPaint::kStroke_Style);
181 const SkAlpha fade = 0x33;
182
183 // draw path in hairline
184 paint.setColor(gPathColor); paint.setAlpha(fade);
185 canvas->drawPath(path, paint);
rmistry@google.comd6176b02012-08-23 18:14:13 +0000186
reed@google.coma8f60f22011-12-08 16:18:29 +0000187 // draw clips in hair line
188 paint.setColor(gClipAColor); paint.setAlpha(fade);
189 canvas->drawPath(clipA, paint);
190 paint.setColor(gClipBColor); paint.setAlpha(fade);
191 canvas->drawPath(clipB, paint);
192 }
193
bsalomon6ae83cf2014-12-17 14:38:49 -0800194 bool fDoAAClip;
195 bool fDoSaveLayer;
196 bool fInvertDraw;
197
bsalomon@google.com807cec42011-03-10 19:20:15 +0000198 typedef GM INHERITED;
199};
200
201//////////////////////////////////////////////////////////////////////////////
202
bsalomon6ae83cf2014-12-17 14:38:49 -0800203DEF_GM( return SkNEW_ARGS(ComplexClipGM, (false, false, false)); )
204DEF_GM( return SkNEW_ARGS(ComplexClipGM, (false, false, true)); )
205DEF_GM( return SkNEW_ARGS(ComplexClipGM, (false, true, false)); )
206DEF_GM( return SkNEW_ARGS(ComplexClipGM, (false, true, true)); )
207DEF_GM( return SkNEW_ARGS(ComplexClipGM, (true, false, false)); )
208DEF_GM( return SkNEW_ARGS(ComplexClipGM, (true, false, true)); )
209DEF_GM( return SkNEW_ARGS(ComplexClipGM, (true, true, false)); )
210DEF_GM( return SkNEW_ARGS(ComplexClipGM, (true, true, true)); )
bsalomon@google.com807cec42011-03-10 19:20:15 +0000211
212}