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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
#include "SkCanvas.h"
#include "SkPath.h"
namespace skiagm {
constexpr SkColor gPathColor = SK_ColorYELLOW;
class ComplexClip3GM : public GM {
public:
ComplexClip3GM(bool doSimpleClipFirst)
: fDoSimpleClipFirst(doSimpleClipFirst) {
this->setBGColor(sk_tool_utils::color_to_565(0xFFDDDDDD));
}
protected:
SkString onShortName() {
SkString str;
str.printf("complexclip3_%s", fDoSimpleClipFirst ? "simple" : "complex");
return str;
}
SkISize onISize() { return SkISize::Make(1000, 950); }
virtual void onDraw(SkCanvas* canvas) {
SkPath clipSimple;
clipSimple.addCircle(SkIntToScalar(70), SkIntToScalar(50), SkIntToScalar(20));
SkRect r1 = { 10, 20, 70, 80 };
SkPath clipComplex;
clipComplex.moveTo(SkIntToScalar(40), SkIntToScalar(50));
clipComplex.arcTo(r1, SkIntToScalar(30), SkIntToScalar(300), false);
clipComplex.close();
SkPath* firstClip = &clipSimple;
SkPath* secondClip = &clipComplex;
if (!fDoSimpleClipFirst) {
SkTSwap<SkPath*>(firstClip, secondClip);
}
SkPaint paint;
paint.setAntiAlias(true);
sk_tool_utils::set_portable_typeface(&paint);
paint.setTextSize(SkIntToScalar(20));
constexpr struct {
SkClipOp fOp;
const char* fName;
} gOps[] = {
{kIntersect_SkClipOp, "I"},
{kDifference_SkClipOp, "D" },
{kUnion_SkClipOp, "U"},
{kXOR_SkClipOp, "X" },
{kReverseDifference_SkClipOp, "R"}
};
canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
canvas->scale(3 * SK_Scalar1 / 4, 3 * SK_Scalar1 / 4);
SkPaint pathPaint;
pathPaint.setAntiAlias(true);
pathPaint.setColor(gPathColor);
for (int invA = 0; invA < 2; ++invA) {
for (int aaBits = 0; aaBits < 4; ++aaBits) {
canvas->save();
for (size_t op = 0; op < SK_ARRAY_COUNT(gOps); ++op) {
for (int invB = 0; invB < 2; ++invB) {
bool doAAA = SkToBool(aaBits & 1);
bool doAAB = SkToBool(aaBits & 2);
bool doInvA = SkToBool(invA);
bool doInvB = SkToBool(invB);
canvas->save();
// set clip
firstClip->setFillType(doInvA ? SkPath::kInverseEvenOdd_FillType :
SkPath::kEvenOdd_FillType);
secondClip->setFillType(doInvB ? SkPath::kInverseEvenOdd_FillType :
SkPath::kEvenOdd_FillType);
canvas->clipPath(*firstClip, doAAA);
canvas->clipPath(*secondClip, gOps[op].fOp, doAAB);
// draw rect clipped
SkRect r = { 0, 0, 100, 100 };
canvas->drawRect(r, pathPaint);
canvas->restore();
SkScalar txtX = SkIntToScalar(10);
paint.setColor(SK_ColorBLACK);
SkString str;
str.printf("%s%s %s %s%s", doAAA ? "A" : "B",
doInvA ? "I" : "N",
gOps[op].fName,
doAAB ? "A" : "B",
doInvB ? "I" : "N");
canvas->drawText(str.c_str(), strlen(str.c_str()), txtX, SkIntToScalar(130),
paint);
if (doInvB) {
canvas->translate(SkIntToScalar(150),0);
} else {
canvas->translate(SkIntToScalar(120),0);
}
}
}
canvas->restore();
canvas->translate(0, SkIntToScalar(150));
}
}
}
private:
bool fDoSimpleClipFirst;
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
// Simple clip first
DEF_GM( return new ComplexClip3GM(true); )
// Complex clip first
DEF_GM( return new ComplexClip3GM(false); )
}
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