d7639aff10
- replace virtual with override.
- remove default constructor.
- use default field initializers
- move work from constructor into onOnceBeforeDraw
- mark everything private
- enum { N = 100 }; constants to constexpr
- remove unused variables
Change-Id: I8c7a19bc24fec416a6b88d634ee948d3e842b986
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/228056
Commit-Queue: Ben Wagner <bungeman@google.com>
Auto-Submit: Hal Canary <halcanary@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
179 lines
6.8 KiB
C++
179 lines
6.8 KiB
C++
/*
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* Copyright 2011 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 "include/core/SkBitmap.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkShader.h"
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#include "samplecode/Sample.h"
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static SkBitmap createBitmap(int n) {
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SkBitmap bitmap;
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bitmap.allocN32Pixels(n, n);
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bitmap.eraseColor(SK_ColorGREEN);
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SkCanvas canvas(bitmap);
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SkRect r;
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r.set(0, 0, SkIntToScalar(n), SkIntToScalar(n));
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(SK_ColorRED);
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canvas.drawOval(r, paint);
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paint.setColor(SK_ColorBLUE);
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paint.setStrokeWidth(SkIntToScalar(n)/15);
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paint.setStyle(SkPaint::kStroke_Style);
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canvas.drawLine(0, 0, r.fRight, r.fBottom, paint);
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canvas.drawLine(0, r.fBottom, r.fRight, 0, paint);
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return bitmap;
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}
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static constexpr int N = 64;
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class AARectView : public Sample {
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SkBitmap fBitmap;
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void onOnceBeforeDraw() override {
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fBitmap = createBitmap(N);
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}
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SkString name() override { return SkString("AA Rects"); }
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void onDrawContent(SkCanvas* canvas) override {
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canvas->translate(SkIntToScalar(10), SkIntToScalar(10));
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SkPaint bluePaint;
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bluePaint.setARGB(0xff, 0x0, 0x0, 0xff);
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SkPaint bmpPaint;
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bmpPaint.setShader(fBitmap.makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat));
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bluePaint.setStrokeWidth(3);
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bmpPaint.setStrokeWidth(3);
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SkPaint paints[] = { bluePaint, bmpPaint };
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SkRect rect;
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SkScalar dx = SkIntToScalar(80);
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SkScalar dy = SkIntToScalar(100);
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SkMatrix matrix;
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for (size_t p = 0; p < SK_ARRAY_COUNT(paints); ++p) {
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for (int stroke = 0; stroke < 2; ++stroke) {
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paints[p].setStyle(stroke ? SkPaint::kStroke_Style : SkPaint::kFill_Style);
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for (int a = 0; a < 3; ++ a) {
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paints[p].setAntiAlias(a > 0);
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paints[p].setAlpha(a > 1 ? 0x80 : 0xff);
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canvas->save();
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rect = SkRect::MakeLTRB(0.f,
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0.f,
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40.f,
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40.f);
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canvas->drawRect(rect, paints[p]);
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canvas->translate(dx, 0);
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rect = SkRect::MakeLTRB(0.5f,
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0.5f,
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40.5f,
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40.5f);
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canvas->drawRect(rect, paints[p]);
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canvas->translate(dx, 0);
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rect = SkRect::MakeLTRB(0.5f,
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0.5f,
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40.f,
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40.f);
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canvas->drawRect(rect, paints[p]);
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canvas->translate(dx, 0);
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rect = SkRect::MakeLTRB(0.75f,
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0.75f,
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40.75f,
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40.75f);
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canvas->drawRect(rect, paints[p]);
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canvas->translate(dx, 0);
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canvas->save();
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canvas->translate(.33f, .67f);
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rect = SkRect::MakeLTRB(0.0f,
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0.0f,
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40.0f,
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40.0f);
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canvas->drawRect(rect, paints[p]);
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canvas->restore();
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canvas->translate(dx, 0);
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canvas->save();
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matrix.setRotate(45.f);
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canvas->concat(matrix);
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canvas->translate(20.0f / sqrtf(2.f),
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20.0f / sqrtf(2.f));
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rect = SkRect::MakeLTRB(-20.0f,
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-20.0f,
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20.0f,
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20.0f);
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canvas->drawRect(rect, paints[p]);
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canvas->restore();
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canvas->translate(dx, 0);
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canvas->save();
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canvas->rotate(90.f);
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rect = SkRect::MakeLTRB(0.0f,
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0.0f,
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40.0f,
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-40.0f);
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canvas->drawRect(rect, paints[p]);
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canvas->restore();
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canvas->translate(dx, 0);
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canvas->save();
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canvas->rotate(90.f);
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rect = SkRect::MakeLTRB(0.5f,
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0.5f,
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40.5f,
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-40.5f);
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canvas->drawRect(rect, paints[p]);
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canvas->restore();
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canvas->translate(dx, 0);
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canvas->save();
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matrix.setScale(-1.f, -1.f);
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canvas->concat(matrix);
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rect = SkRect::MakeLTRB(0.5f,
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0.5f,
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-40.5f,
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-40.5f);
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canvas->drawRect(rect, paints[p]);
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canvas->restore();
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canvas->translate(dx, 0);
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canvas->save();
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matrix.setScale(2.1f, 4.1f);
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canvas->concat(matrix);
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rect = SkRect::MakeLTRB(0.1f,
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0.1f,
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19.1f,
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9.1f);
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canvas->drawRect(rect, paints[p]);
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canvas->restore();
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canvas->translate(dx, 0);
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canvas->restore();
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canvas->translate(0, dy);
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}
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}
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}
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}
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private:
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typedef Sample INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_SAMPLE( return new AARectView(); )
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