blob: d704450a1f035555e2e034a177077f8423129c2a [file] [log] [blame]
/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm/gm.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPath.h"
#include "include/core/SkRect.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/pathops/SkPathOps.h"
#include "tools/ToolUtils.h"
namespace skiagm {
class PathOpsInverseGM : public GM {
public:
PathOpsInverseGM() {
}
protected:
void onOnceBeforeDraw() override {
const unsigned oneColor = ToolUtils::color_to_565(0xFF8080FF);
const unsigned twoColor = 0x807F1f1f;
SkColor blendColor = blend(oneColor, twoColor);
makePaint(&fOnePaint, oneColor);
makePaint(&fTwoPaint, twoColor);
makePaint(&fOpPaint[kDifference_SkPathOp], oneColor);
makePaint(&fOpPaint[kIntersect_SkPathOp], blendColor);
makePaint(&fOpPaint[kUnion_SkPathOp], ToolUtils::color_to_565(0xFFc0FFc0));
makePaint(&fOpPaint[kReverseDifference_SkPathOp], twoColor);
makePaint(&fOpPaint[kXOR_SkPathOp], ToolUtils::color_to_565(0xFFa0FFe0));
makePaint(&fOutlinePaint, 0xFF000000);
fOutlinePaint.setStyle(SkPaint::kStroke_Style);
}
SkColor blend(SkColor one, SkColor two) {
SkBitmap temp;
temp.allocN32Pixels(1, 1);
SkCanvas canvas(temp);
canvas.drawColor(one);
canvas.drawColor(two);
void* pixels = temp.getPixels();
return *(SkColor*) pixels;
}
void makePaint(SkPaint* paint, SkColor color) {
paint->setAntiAlias(true);
paint->setStyle(SkPaint::kFill_Style);
paint->setColor(color);
}
SkString getName() const override { return SkString("pathopsinverse"); }
SkISize getISize() override { return SkISize::Make(1200, 900); }
void onDraw(SkCanvas* canvas) override {
SkPath one, two;
int yPos = 0;
for (int oneFill = 0; oneFill <= 1; ++oneFill) {
SkPathFillType oneF = oneFill ? SkPathFillType::kInverseEvenOdd
: SkPathFillType::kEvenOdd;
for (int twoFill = 0; twoFill <= 1; ++twoFill) {
SkPathFillType twoF = twoFill ? SkPathFillType::kInverseEvenOdd
: SkPathFillType::kEvenOdd;
one.reset();
one.setFillType(oneF);
one.addRect(10, 10, 70, 70);
two.reset();
two.setFillType(twoF);
two.addRect(40, 40, 100, 100);
canvas->save();
canvas->translate(0, SkIntToScalar(yPos));
canvas->clipRect(SkRect::MakeWH(110, 110), true);
canvas->drawPath(one, fOnePaint);
canvas->drawPath(one, fOutlinePaint);
canvas->drawPath(two, fTwoPaint);
canvas->drawPath(two, fOutlinePaint);
canvas->restore();
int xPos = 150;
for (int op = kDifference_SkPathOp; op <= kReverseDifference_SkPathOp; ++op) {
SkPath result;
Op(one, two, (SkPathOp) op, &result);
canvas->save();
canvas->translate(SkIntToScalar(xPos), SkIntToScalar(yPos));
canvas->clipRect(SkRect::MakeWH(110, 110), true);
canvas->drawPath(result, fOpPaint[op]);
canvas->drawPath(result, fOutlinePaint);
canvas->restore();
xPos += 150;
}
yPos += 150;
}
}
}
private:
SkPaint fOnePaint;
SkPaint fTwoPaint;
SkPaint fOutlinePaint;
SkPaint fOpPaint[kReverseDifference_SkPathOp - kDifference_SkPathOp + 1];
using INHERITED = GM;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM( return new PathOpsInverseGM; )
} // namespace skiagm
#include "include/pathops/SkPathOps.h"
#include "include/utils/SkParsePath.h"
DEF_SIMPLE_GM(pathops_skbug_10155, canvas, 256, 256) {
const char* svgStr[] = {
"M474.889 27.0952C474.889 27.1002 474.888 27.1018 474.889 27.1004L479.872 27.5019C479.883 27.3656 479.889 27.2299 479.889 27.0952L474.889 27.0952L474.889 27.0952Z",
"M474.94 26.9405C474.93 26.9482 474.917 26.9576 474.901 26.9683L477.689 31.1186C477.789 31.0512 477.888 30.9804 477.985 30.9059L474.94 26.9405L474.94 26.9405Z"
};
SkPath path[2], resultPath;
SkOpBuilder builder;
for (int i = 0; i < 2; i++)
{
SkParsePath::FromSVGString(svgStr[i], &path[i]);
builder.add(path[i], kUnion_SkPathOp);
}
builder.resolve(&resultPath);
auto r = path[0].getBounds();
canvas->translate(30, 30);
canvas->scale(200 / r.width(), 200 / r.width());
canvas->translate(-r.fLeft, -r.fTop);
SkPaint paint;
paint.setColor(SK_ColorRED);
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(0);
canvas->drawPath(path[0], paint);
canvas->drawPath(path[1], paint);
// The blue draw should (nearly) overdraw all of the red (except where the two paths intersect)
paint.setColor(SK_ColorBLUE);
canvas->drawPath(resultPath, paint);
}