skia2/gm/complexclip3.cpp
Ben Wagner f08d1d0ce1 Stop using SkTSwap.
Use std::swap instead. It does not appear that any external user
specializes SkTSwap, but some may still use it. This removes all use in
Skia so that SkTSwap can later be removed in a smaller CL. After that
the <utility> include can be removed from SkTypes.h.

Change-Id: If03d4ee07dbecda961aa9f0dc34d171ef5168753
Reviewed-on: https://skia-review.googlesource.com/135578
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2018-06-19 02:06:31 +00:00

136 lines
4.5 KiB
C++

/*
* 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 "sk_tool_utils.h"
#include "SkCanvas.h"
#include "SkPath.h"
#include <utility>
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) {
using std::swap;
swap(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->drawString(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); )
}