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106 lines
2.7 KiB
106 lines
2.7 KiB
4 months ago
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/*
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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 "DecodeFile.h"
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#include "Sample.h"
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#include "SkCanvas.h"
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#include "SkCornerPathEffect.h"
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#include "SkGradientShader.h"
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#include "SkGraphics.h"
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#include "SkPath.h"
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#include "SkRandom.h"
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#include "SkRegion.h"
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#include "SkShader.h"
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#include "SkUTF.h"
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#include "SkColorPriv.h"
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#include "SkColorFilter.h"
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#include "SkTime.h"
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#include "SkTypeface.h"
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#include "SkStream.h"
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#include "SkColorPriv.h"
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class LinesView : public Sample {
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public:
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LinesView() {}
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protected:
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bool onQuery(Sample::Event* evt) override {
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if (Sample::TitleQ(*evt)) {
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Sample::TitleR(evt, "Lines");
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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/*
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0x1F * x + 0x1F * (32 - x)
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*/
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void drawRings(SkCanvas* canvas) {
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canvas->scale(SkIntToScalar(1)/2, SkIntToScalar(1)/2);
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SkRect r;
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SkScalar x = SkIntToScalar(10);
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SkScalar y = SkIntToScalar(10);
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r.set(x, y, x + SkIntToScalar(100), y + SkIntToScalar(100));
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SkPaint paint;
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// paint.setAntiAlias(true);
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(SkScalarHalf(SkIntToScalar(3)));
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paint.setColor(0xFFFF8800);
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// paint.setColor(0xFFFFFFFF);
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canvas->drawRect(r, paint);
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}
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void onDrawContent(SkCanvas* canvas) override {
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SkBitmap bm;
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decode_file("/kill.gif", &bm);
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canvas->drawBitmap(bm, 0, 0, nullptr);
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this->drawRings(canvas);
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return;
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SkPaint paint;
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// fAlpha = 0x80;
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paint.setColor(SK_ColorWHITE);
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paint.setAlpha(fAlpha & 0xFF);
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SkRect r;
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SkScalar x = SkIntToScalar(10);
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SkScalar y = SkIntToScalar(10);
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r.set(x, y, x + SkIntToScalar(100), y + SkIntToScalar(100));
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canvas->drawRect(r, paint);
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return;
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paint.setColor(0xffffff00); // yellow
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(SkIntToScalar(2));
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// y += SK_Scalar1/2;
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canvas->drawLine(x, y, x + SkIntToScalar(90), y + SkIntToScalar(90), paint);
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paint.setAntiAlias(true); // with anti-aliasing
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y += SkIntToScalar(10);
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canvas->drawLine(x, y, x + SkIntToScalar(90), y + SkIntToScalar(90), paint);
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}
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Sample::Click* onFindClickHandler(SkScalar x, SkScalar y, unsigned) override {
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fAlpha = SkScalarRoundToInt(y);
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return nullptr;
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}
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private:
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int fAlpha;
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typedef Sample INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_SAMPLE( return new LinesView(); )
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