cac5fd597f
This is part of an effort to ensure that all SkPaint effects can only be allocated on the heap. This patch makes the constructors of SkImageFilter and its subclasses non-public and instead provides factory methods for creating these objects on the heap. We temporarily keep constructor of publicly visible classes public behind a flag. BUG=skia:2187 R=scroggo@google.com, mtklein@chromium.org, reed@google.com, senorblanco@google.com, senorblanco@chromium.org, bsalomon@google.com, sugoi@chromium.org, zork@chromium.org Author: dominikg@chromium.org Review URL: https://codereview.chromium.org/182983003 git-svn-id: http://skia.googlecode.com/svn/trunk@13718 2bbb7eff-a529-9590-31e7-b0007b416f81
106 lines
2.9 KiB
C++
106 lines
2.9 KiB
C++
/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm.h"
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#include "SkMorphologyImageFilter.h"
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#define WIDTH 700
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#define HEIGHT 560
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namespace skiagm {
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class MorphologyGM : public GM {
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public:
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MorphologyGM() {
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this->setBGColor(0xFF000000);
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fOnce = false;
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}
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protected:
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virtual SkString onShortName() {
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return SkString("morphology");
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}
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void make_bitmap() {
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fBitmap.allocN32Pixels(135, 135);
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SkCanvas canvas(fBitmap);
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canvas.clear(0x0);
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SkPaint paint;
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paint.setAntiAlias(true);
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const char* str1 = "ABC";
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const char* str2 = "XYZ";
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paint.setColor(0xFFFFFFFF);
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paint.setTextSize(64);
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canvas.drawText(str1, strlen(str1), 10, 55, paint);
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canvas.drawText(str2, strlen(str2), 10, 110, paint);
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}
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virtual SkISize onISize() {
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return make_isize(WIDTH, HEIGHT);
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}
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void drawClippedBitmap(SkCanvas* canvas, const SkPaint& paint, int x, int y) {
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canvas->save();
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canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
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canvas->clipRect(SkRect::MakeWH(
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SkIntToScalar(fBitmap.width()), SkIntToScalar(fBitmap.height())));
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canvas->drawBitmap(fBitmap, 0, 0, &paint);
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canvas->restore();
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}
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virtual void onDraw(SkCanvas* canvas) {
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if (!fOnce) {
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make_bitmap();
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fOnce = true;
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}
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struct {
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int fWidth, fHeight;
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int fRadiusX, fRadiusY;
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} samples[] = {
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{ 140, 140, 0, 0 },
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{ 140, 140, 0, 2 },
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{ 140, 140, 2, 0 },
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{ 140, 140, 2, 2 },
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{ 24, 24, 25, 25 },
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};
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SkPaint paint;
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SkImageFilter::CropRect cropRect(SkRect::MakeXYWH(25, 20, 100, 80));
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for (unsigned j = 0; j < 4; ++j) {
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for (unsigned i = 0; i < SK_ARRAY_COUNT(samples); ++i) {
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const SkImageFilter::CropRect* cr = j & 0x02 ? &cropRect : NULL;
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if (j & 0x01) {
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paint.setImageFilter(SkErodeImageFilter::Create(
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samples[i].fRadiusX,
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samples[i].fRadiusY,
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NULL,
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cr))->unref();
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} else {
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paint.setImageFilter(SkDilateImageFilter::Create(
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samples[i].fRadiusX,
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samples[i].fRadiusY,
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NULL,
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cr))->unref();
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}
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drawClippedBitmap(canvas, paint, i * 140, j * 140);
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}
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}
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}
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private:
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typedef GM INHERITED;
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SkBitmap fBitmap;
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bool fOnce;
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};
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//////////////////////////////////////////////////////////////////////////////
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static GM* MyFactory(void*) { return new MorphologyGM; }
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static GMRegistry reg(MyFactory);
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}
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