skia2/docs/examples/Canvas_getDeviceClipBounds.cpp

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// Copyright 2019 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "fiddle/examples.h"
// HASH=556832ac5711af662a98c21c547185e9
REG_FIDDLE(Canvas_getDeviceClipBounds, 256, 256, true, 0) {
void draw(SkCanvas* canvas) {
SkCanvas device(256, 256);
canvas = &device;
SkIRect bounds = canvas->getDeviceClipBounds();
SkDebugf("left:%d top:%d right:%d bottom:%d\n",
bounds.fLeft, bounds.fTop, bounds.fRight, bounds.fBottom);
SkPoint clipPoints[] = {{30, 130}, {120, 130}, {120, 230} };
SkPath clipPath;
clipPath.addPoly(clipPoints, SK_ARRAY_COUNT(clipPoints), true);
canvas->save();
canvas->clipPath(clipPath);
bounds = canvas->getDeviceClipBounds();
SkDebugf("left:%d top:%d right:%d bottom:%d\n",
bounds.fLeft, bounds.fTop, bounds.fRight, bounds.fBottom);
canvas->restore();
canvas->scale(1.f/2, 1.f/2);
canvas->clipPath(clipPath);
bounds = canvas->getDeviceClipBounds();
SkDebugf("left:%d top:%d right:%d bottom:%d\n",
bounds.fLeft, bounds.fTop, bounds.fRight, bounds.fBottom);
}
} // END FIDDLE