8a027312cd
Change-Id: I9b6e39bc7e35346bb73dfe014de1c8daa5a92f2a Reviewed-on: https://skia-review.googlesource.com/c/skia/+/225428 Auto-Submit: Hal Canary <halcanary@google.com> Commit-Queue: Ben Wagner <bungeman@google.com> Reviewed-by: Ben Wagner <bungeman@google.com>
85 lines
2.9 KiB
C++
85 lines
2.9 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 "samplecode/Sample.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkColorFilter.h"
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#include "include/core/SkColorPriv.h"
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#include "include/core/SkGraphics.h"
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#include "include/core/SkPath.h"
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#include "include/core/SkRegion.h"
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#include "include/core/SkShader.h"
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#include "include/core/SkStream.h"
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#include "include/core/SkTextBlob.h"
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#include "include/core/SkTime.h"
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#include "include/core/SkTypeface.h"
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#include "include/effects/SkBlurMaskFilter.h"
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#include "include/effects/SkGradientShader.h"
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#include "include/utils/SkRandom.h"
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#include "modules/skshaper/include/SkShaper.h"
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#include "src/core/SkOSFile.h"
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#include "src/shaders/SkColorShader.h"
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#include "src/utils/SkUTF.h"
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static const char gText[] =
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"When in the Course of human events it becomes necessary for one people "
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"to dissolve the political bands which have connected them with another "
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"and to assume among the powers of the earth, the separate and equal "
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"station to which the Laws of Nature and of Nature's God entitle them, "
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"a decent respect to the opinions of mankind requires that they should "
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"declare the causes which impel them to the separation.";
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class TextBoxView : public Sample {
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public:
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TextBoxView() : fShaper(SkShaper::Make()) {}
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protected:
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SkString name() override { return SkString("TextBox"); }
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void drawTest(SkCanvas* canvas, SkScalar w, SkScalar h, SkColor fg, SkColor bg) {
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SkAutoCanvasRestore acr(canvas, true);
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canvas->clipRect(SkRect::MakeWH(w, h));
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canvas->drawColor(bg);
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SkScalar margin = 20;
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SkPaint paint;
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paint.setColor(fg);
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for (int i = 9; i < 24; i += 2) {
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SkTextBlobBuilderRunHandler builder(gText, { margin, margin });
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SkFont font(nullptr, SkIntToScalar(i));
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font.setEdging(SkFont::Edging::kSubpixelAntiAlias);
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fShaper->shape(gText, strlen(gText), font, true, w - margin, &builder);
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canvas->drawTextBlob(builder.makeBlob(), 0, 0, paint);
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canvas->translate(0, builder.endPoint().y());
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}
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}
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void onDrawContent(SkCanvas* canvas) override {
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SkScalar width = this->width() / 3;
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drawTest(canvas, width, this->height(), SK_ColorBLACK, SK_ColorWHITE);
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canvas->translate(width, 0);
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drawTest(canvas, width, this->height(), SK_ColorWHITE, SK_ColorBLACK);
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canvas->translate(width, 0);
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drawTest(canvas, width, this->height()/2, SK_ColorGRAY, SK_ColorWHITE);
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canvas->translate(0, this->height()/2);
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drawTest(canvas, width, this->height()/2, SK_ColorGRAY, SK_ColorBLACK);
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}
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private:
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std::unique_ptr<SkShaper> fShaper;
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typedef Sample INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_SAMPLE( return new TextBoxView(); )
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