109 lines
3.0 KiB
C++
109 lines
3.0 KiB
C++
// Copyright 2020 Google LLC.
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#include "tools/fiddle/examples.h"
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REG_FIDDLE(example3ps, 320, 256, false, 0) {
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static SkMatrix setpsmatrix(float sx, float kx, float ky, float sy, float tx, float ty, int h) {
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SkMatrix m;
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m.setAll(sx, -kx, -tx * sx - (ty - h) * kx, -ky, sy, (ty - h) * sy + tx * ky, 0, 0, 1);
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return m;
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}
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void draw(SkCanvas* canvas) {
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canvas->save();
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canvas->scale(15, -15);
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canvas->translate(0, -28);
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SkPath path;
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path.moveTo(2, 2);
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path.lineTo(3, 3);
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path.lineTo(3, 4);
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path.lineTo(2, 4);
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path.lineTo(1, 5);
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path.close();
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SkPaint p;
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p.setAntiAlias(true);
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p.setStrokeWidth(0.1f);
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canvas->save();
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canvas->translate(0, 18);
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p.setColor(SK_ColorGRAY);
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canvas->drawPath(path, p);
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canvas->restore();
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p.setStyle(SkPaint::kStroke_Style);
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canvas->save();
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canvas->translate(8, 19);
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canvas->rotate(90);
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p.setColor(SK_ColorRED);
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canvas->drawPath(path, p);
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canvas->restore();
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canvas->save();
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canvas->translate(5, 23);
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canvas->rotate(-90);
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p.setColor(SK_ColorBLUE);
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canvas->drawPath(path, p);
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canvas->restore();
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canvas->save();
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canvas->translate(14, 18);
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canvas->scale(-1, 1);
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p.setColor(0xFF007F00);
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canvas->drawPath(path, p);
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canvas->restore();
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canvas->restore();
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canvas->scale(15, 15);
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canvas->translate(0, 24);
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SkMatrix m;
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unsigned char d[] = {0x00, 0x00, 0x00, 0x00, 0xff, 0xff};
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sk_sp<SkData> data = SkData::MakeWithoutCopy((unsigned char*)d, sizeof(d));
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SkImageInfo info =
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SkImageInfo::Make(3, 2, SkColorType::kGray_8_SkColorType, kOpaque_SkAlphaType);
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sk_sp<SkImage> image = SkImage::MakeRasterData(info, data, 3);
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canvas->save();
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m = setpsmatrix(1, 0, 0, 1, -1, -24, 2);
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// m.setAll(1, 0, -1, 0, 1, -24, 0, 0, 1);
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canvas->concat(m);
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canvas->drawImage(image, 0, 0);
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canvas->restore();
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canvas->save();
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m = setpsmatrix(0, 1, 1, 0, -24, -5, 2);
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// m.setAll(0, -1, 5, -1, 0, -22, 0, 0, 1);
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canvas->concat(m);
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canvas->drawImage(image, 0, 0);
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canvas->restore();
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canvas->save();
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m = setpsmatrix(0, 1, -1, 0, 27, -8, 2);
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// m.setAll(0, -1, 8, 1, 0, -25, 0, 0, 1);
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canvas->concat(m);
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canvas->drawImage(image, 0, 0);
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canvas->restore();
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canvas->save();
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m = setpsmatrix(0, -1, -1, 0, -24, 13, 2);
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// m.setAll(0, 1, 9, -1, 0, -22, 0, 0, 1);
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canvas->concat(m);
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canvas->drawImage(image, 0, 0);
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canvas->restore();
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canvas->save();
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m = setpsmatrix(-1, 0, 0, -1, 17, 26, 2);
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// m.setAll(-1, 0, 15, 0, -1, -22, 0, 0, 1);
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canvas->concat(m);
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canvas->drawImage(image, 0, 0);
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canvas->restore();
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canvas->save();
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m = setpsmatrix(-1, 0, 0, 1, 21, -24, 2);
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// m.setAll(-1, 0, 19, 0, 1, -24, 0, 0, 1);
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canvas->concat(m);
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canvas->drawImage(image, 0, 0);
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canvas->restore();
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}
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} // END FIDDLE
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