2019-05-30 20:12:56 +00:00
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// Copyright 2019 Google LLC.
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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/skparagraph/include/Paragraph.h"
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2019-06-17 14:34:10 +00:00
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#include "modules/skparagraph/include/TypefaceFontProvider.h"
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2019-05-30 20:12:56 +00:00
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#include "modules/skparagraph/src/ParagraphBuilderImpl.h"
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#include "modules/skparagraph/src/ParagraphImpl.h"
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2019-06-19 17:32:01 +00:00
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#include "modules/skparagraph/utils/TestFontCollection.h"
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2019-06-18 13:58:02 +00:00
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#include "samplecode/Sample.h"
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2019-05-30 20:12:56 +00:00
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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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#include "tools/Resources.h"
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using namespace skia::textlayout;
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namespace {
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2019-07-23 14:11:03 +00:00
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class ParagraphView_Base : public Sample {
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protected:
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sk_sp<TestFontCollection> fFC;
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void onOnceBeforeDraw() override {
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fFC = sk_make_sp<TestFontCollection>(GetResourcePath("fonts").c_str());
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}
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};
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2019-05-30 20:12:56 +00:00
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sk_sp<SkShader> setgrad(const SkRect& r, SkColor c0, SkColor c1) {
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SkColor colors[] = {c0, c1};
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SkPoint pts[] = {{r.fLeft, r.fTop}, {r.fRight, r.fTop}};
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return SkGradientShader::MakeLinear(pts, colors, nullptr, 2, SkTileMode::kClamp);
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}
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2019-06-21 16:22:32 +00:00
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const char* gText =
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"This is a very long sentence to test if the text will properly wrap "
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"around and go to the next line. Sometimes, short sentence. Longer "
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"sentences are okay too because they are nessecary. Very short. "
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"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod "
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"tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim "
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"veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea "
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"commodo consequat. Duis aute irure dolor in reprehenderit in voluptate "
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"velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint "
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"occaecat cupidatat non proident, sunt in culpa qui officia deserunt "
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"mollit anim id est laborum. "
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"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod "
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"tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim "
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"veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea "
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"commodo consequat. Duis aute irure dolor in reprehenderit in voluptate "
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"velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint "
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"occaecat cupidatat non proident, sunt in culpa qui officia deserunt "
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"mollit anim id est laborum.";
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2019-05-30 20:12:56 +00:00
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} // namespace
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2019-07-23 14:11:03 +00:00
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class ParagraphView1 : public ParagraphView_Base {
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2019-05-30 20:12:56 +00:00
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protected:
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2019-07-03 14:55:44 +00:00
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SkString name() override { return SkString("Paragraph1"); }
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2019-05-30 20:12:56 +00:00
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void drawTest(SkCanvas* canvas, SkScalar w, SkScalar h, SkColor fg, SkColor bg) {
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const std::vector<
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std::tuple<std::string, bool, bool, int, SkColor, SkColor, bool, TextDecorationStyle>>
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gParagraph = {{"monospace", true, false, 14, SK_ColorWHITE, SK_ColorRED, true,
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TextDecorationStyle::kDashed},
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{"Assyrian", false, false, 20, SK_ColorWHITE, SK_ColorBLUE, false,
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TextDecorationStyle::kDotted},
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{"serif", true, true, 10, SK_ColorWHITE, SK_ColorRED, true,
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TextDecorationStyle::kDouble},
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{"Arial", false, true, 16, SK_ColorGRAY, SK_ColorGREEN, true,
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TextDecorationStyle::kSolid},
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{"sans-serif", false, false, 8, SK_ColorWHITE, SK_ColorRED, false,
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TextDecorationStyle::kWavy}};
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SkAutoCanvasRestore acr(canvas, true);
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canvas->clipRect(SkRect::MakeWH(w, h));
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canvas->drawColor(SK_ColorWHITE);
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SkScalar margin = 20;
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(fg);
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SkPaint blue;
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blue.setColor(SK_ColorBLUE);
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TextStyle defaultStyle;
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defaultStyle.setBackgroundColor(blue);
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defaultStyle.setForegroundColor(paint);
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ParagraphStyle paraStyle;
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for (auto i = 1; i < 5; ++i) {
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defaultStyle.setFontSize(24 * i);
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paraStyle.setTextStyle(defaultStyle);
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2019-06-21 16:22:32 +00:00
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auto fontCollection = sk_make_sp<FontCollection>();
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fontCollection->setDefaultFontManager(SkFontMgr::RefDefault());
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ParagraphBuilderImpl builder(paraStyle, fontCollection);
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2019-05-30 20:12:56 +00:00
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std::string name = "Paragraph: " + std::to_string(24 * i);
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builder.addText(name.c_str());
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for (auto para : gParagraph) {
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TextStyle style;
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style.setFontFamilies({SkString(std::get<0>(para).c_str())});
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SkFontStyle fontStyle(std::get<1>(para) ? SkFontStyle::Weight::kBold_Weight
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: SkFontStyle::Weight::kNormal_Weight,
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SkFontStyle::Width::kNormal_Width,
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std::get<2>(para) ? SkFontStyle::Slant::kItalic_Slant
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: SkFontStyle::Slant::kUpright_Slant);
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style.setFontStyle(fontStyle);
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style.setFontSize(std::get<3>(para) * i);
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SkPaint background;
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background.setColor(std::get<4>(para));
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style.setBackgroundColor(background);
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SkPaint foreground;
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foreground.setColor(std::get<5>(para));
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foreground.setAntiAlias(true);
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style.setForegroundColor(foreground);
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if (std::get<6>(para)) {
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style.addShadow(TextShadow(SK_ColorBLACK, SkPoint::Make(5, 5), 2));
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}
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auto decoration = (i % 4);
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if (decoration == 3) {
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decoration = 4;
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}
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bool test = (TextDecoration)decoration != TextDecoration::kNoDecoration;
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std::string deco = std::to_string((int)decoration);
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if (test) {
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style.setDecoration((TextDecoration)decoration);
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style.setDecorationStyle(std::get<7>(para));
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style.setDecorationColor(std::get<5>(para));
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}
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builder.pushStyle(style);
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std::string name = " " + std::get<0>(para) + " " +
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(std::get<1>(para) ? ", bold" : "") +
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(std::get<2>(para) ? ", italic" : "") + " " +
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std::to_string(std::get<3>(para) * i) +
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(std::get<4>(para) != bg ? ", background" : "") +
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(std::get<5>(para) != fg ? ", foreground" : "") +
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(std::get<6>(para) ? ", shadow" : "") +
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(test ? ", decorations " + deco : "") + ";";
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builder.addText(name.c_str());
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builder.pop();
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}
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auto paragraph = builder.Build();
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paragraph->layout(w - margin * 2);
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paragraph->paint(canvas, margin, margin);
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canvas->translate(0, paragraph->getHeight());
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}
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}
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void onDrawContent(SkCanvas* canvas) override {
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drawTest(canvas, this->width(), this->height(), SK_ColorRED, SK_ColorWHITE);
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}
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private:
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typedef Sample INHERITED;
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};
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2019-07-23 14:11:03 +00:00
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class ParagraphView2 : public ParagraphView_Base {
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2019-05-30 20:12:56 +00:00
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protected:
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2019-07-03 14:55:44 +00:00
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SkString name() override { return SkString("Paragraph2"); }
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2019-05-30 20:12:56 +00:00
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void drawCode(SkCanvas* canvas, SkScalar w, SkScalar h) {
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SkPaint comment;
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comment.setColor(SK_ColorGRAY);
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SkPaint constant;
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constant.setColor(SK_ColorMAGENTA);
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SkPaint null;
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null.setColor(SK_ColorMAGENTA);
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SkPaint literal;
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literal.setColor(SK_ColorGREEN);
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SkPaint code;
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code.setColor(SK_ColorDKGRAY);
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SkPaint number;
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number.setColor(SK_ColorBLUE);
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SkPaint name;
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name.setColor(SK_ColorRED);
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SkPaint white;
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white.setColor(SK_ColorWHITE);
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TextStyle defaultStyle;
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defaultStyle.setBackgroundColor(white);
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defaultStyle.setForegroundColor(code);
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defaultStyle.setFontFamilies({SkString("monospace")});
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defaultStyle.setFontSize(30);
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ParagraphStyle paraStyle;
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paraStyle.setTextStyle(defaultStyle);
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2019-06-21 16:22:32 +00:00
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auto fontCollection = sk_make_sp<FontCollection>();
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fontCollection->setDefaultFontManager(SkFontMgr::RefDefault());
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ParagraphBuilderImpl builder(paraStyle, fontCollection);
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2019-05-30 20:12:56 +00:00
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builder.pushStyle(style(name));
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builder.addText("RaisedButton");
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builder.pop();
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builder.addText("(\n");
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builder.addText(" child: ");
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builder.pushStyle(style(constant));
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builder.addText("const");
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builder.pop();
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builder.addText(" ");
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builder.pushStyle(style(name));
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builder.addText("Text");
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builder.pop();
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builder.addText("(");
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builder.pushStyle(style(literal));
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builder.addText("'BUTTON TITLE'");
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builder.pop();
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builder.addText("),\n");
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auto paragraph = builder.Build();
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paragraph->layout(w - 20);
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paragraph->paint(canvas, 20, 20);
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}
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TextStyle style(SkPaint paint) {
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TextStyle style;
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paint.setAntiAlias(true);
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style.setForegroundColor(paint);
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style.setFontFamilies({SkString("monospace")});
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style.setFontSize(30);
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return style;
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}
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2019-06-21 16:22:32 +00:00
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void drawText(SkCanvas* canvas, SkScalar w, SkScalar h, std::vector<const char*>& text,
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2019-05-30 20:12:56 +00:00
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SkColor fg = SK_ColorDKGRAY, SkColor bg = SK_ColorWHITE,
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const char* ff = "sans-serif", SkScalar fs = 24,
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size_t lineLimit = 30,
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const std::u16string& ellipsis = u"\u2026") {
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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.setAntiAlias(true);
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paint.setColor(fg);
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SkPaint blue;
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blue.setColor(SK_ColorBLUE);
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SkPaint background;
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background.setColor(bg);
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TextStyle style;
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style.setBackgroundColor(blue);
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style.setForegroundColor(paint);
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style.setFontFamilies({SkString(ff)});
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style.setFontStyle(SkFontStyle(SkFontStyle::kMedium_Weight,
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SkFontStyle::kNormal_Width,
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SkFontStyle::kUpright_Slant));
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style.setFontSize(fs);
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ParagraphStyle paraStyle;
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paraStyle.setTextStyle(style);
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paraStyle.setMaxLines(lineLimit);
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paraStyle.setEllipsis(ellipsis);
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TextStyle defaultStyle;
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defaultStyle.setFontSize(20);
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paraStyle.setTextStyle(defaultStyle);
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2019-07-23 14:11:03 +00:00
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ParagraphBuilderImpl builder(paraStyle, fFC);
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2019-05-30 20:12:56 +00:00
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SkPaint foreground;
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foreground.setColor(fg);
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style.setForegroundColor(foreground);
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style.setBackgroundColor(background);
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for (auto& part : text) {
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builder.pushStyle(style);
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2019-06-21 16:22:32 +00:00
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builder.addText(part);
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2019-05-30 20:12:56 +00:00
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builder.pop();
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}
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auto paragraph = builder.Build();
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paragraph->layout(w - margin * 2);
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paragraph->paint(canvas, margin, margin);
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canvas->translate(0, paragraph->getHeight() + margin);
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}
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void drawLine(SkCanvas* canvas, SkScalar w, SkScalar h, const std::string& text,
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TextAlign align) {
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SkAutoCanvasRestore acr(canvas, true);
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canvas->clipRect(SkRect::MakeWH(w, h));
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canvas->drawColor(SK_ColorWHITE);
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SkScalar margin = 20;
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(SK_ColorBLUE);
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SkPaint gray;
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gray.setColor(SK_ColorLTGRAY);
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TextStyle style;
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style.setBackgroundColor(gray);
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style.setForegroundColor(paint);
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style.setFontFamilies({SkString("Arial")});
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style.setFontSize(30);
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ParagraphStyle paraStyle;
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paraStyle.setTextStyle(style);
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paraStyle.setTextAlign(align);
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2019-06-21 16:22:32 +00:00
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auto fontCollection = sk_make_sp<FontCollection>();
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fontCollection->setDefaultFontManager(SkFontMgr::RefDefault());
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ParagraphBuilderImpl builder(paraStyle, fontCollection);
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2019-05-30 20:12:56 +00:00
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builder.addText(text.c_str());
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auto paragraph = builder.Build();
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paragraph->layout(w - margin * 2);
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paragraph->layout(w - margin);
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paragraph->paint(canvas, margin, margin);
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canvas->translate(0, paragraph->getHeight() + margin);
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|
|
}
|
|
|
|
|
|
|
|
void onDrawContent(SkCanvas* canvas) override {
|
2019-06-21 16:22:32 +00:00
|
|
|
std::vector<const char*> cupertino = {
|
2019-05-30 20:12:56 +00:00
|
|
|
"google_logogoogle_gsuper_g_logo 1 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 12 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 123 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 1234 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 12345 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 123456 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 1234567 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 12345678 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 123456789 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 1234567890 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 123456789 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 12345678 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 1234567 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 123456 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 12345 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 1234 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 123 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 12 "
|
|
|
|
"google_logogoogle_gsuper_g_logo 1 "
|
|
|
|
"google_logogoogle_gsuper_g_logo "
|
|
|
|
"google_logogoogle_gsuper_g_logo "
|
|
|
|
"google_logogoogle_gsuper_g_logo "
|
|
|
|
"google_logogoogle_gsuper_g_logo "
|
|
|
|
"google_logogoogle_gsuper_g_logo "
|
|
|
|
"google_logogoogle_gsuper_g_logo"};
|
2019-06-21 16:22:32 +00:00
|
|
|
std::vector<const char*> text = {
|
2019-05-30 20:12:56 +00:00
|
|
|
"My neighbor came over to say,\n"
|
|
|
|
"Although not in a neighborly way,\n\n"
|
|
|
|
"That he'd knock me around,\n\n\n"
|
|
|
|
"If I didn't stop the sound,\n\n\n\n"
|
|
|
|
"Of the classical music I play."};
|
|
|
|
|
2019-06-21 16:22:32 +00:00
|
|
|
std::vector<const char*> long_word = {
|
2019-05-30 20:12:56 +00:00
|
|
|
"A_very_very_very_very_very_very_very_very_very_very_very_very_very_very_very_very_"
|
|
|
|
"very_very_very_very_very_very_very_very_very_very_very_very_very_very_very_very_"
|
|
|
|
"very_very_very_very_very_very_very_very_very_very_very_very_very_very_very_very_"
|
|
|
|
"very_very_very_very_very_very_very_long_text"};
|
|
|
|
|
2019-06-21 16:22:32 +00:00
|
|
|
std::vector<const char*> very_long = {
|
2019-05-30 20:12:56 +00:00
|
|
|
"A very very very very very very very very very very very very very very very very "
|
|
|
|
"very very very very very very very very very very very very very very very very "
|
|
|
|
"very very very very very very very very very very very very very very very very "
|
|
|
|
"very very very very very very very long text"};
|
|
|
|
|
2019-06-21 16:22:32 +00:00
|
|
|
std::vector<const char*> very_word = {
|
2019-05-30 20:12:56 +00:00
|
|
|
"A very_very_very_very_very_very_very_very_very_very "
|
|
|
|
"very_very_very_very_very_very_very_very_very_very very very very very very very "
|
|
|
|
"very very very very very very very very very very very very very very very very "
|
|
|
|
"very very very very very very very very very very very very very long text"};
|
|
|
|
|
|
|
|
SkScalar width = this->width() / 5;
|
|
|
|
SkScalar height = this->height();
|
|
|
|
drawText(canvas, width, height, long_word, SK_ColorBLACK, SK_ColorWHITE, "Google Sans", 30);
|
|
|
|
canvas->translate(width, 0);
|
|
|
|
drawText(canvas, width, height, very_long, SK_ColorBLACK, SK_ColorWHITE, "Google Sans", 30);
|
|
|
|
canvas->translate(width, 0);
|
|
|
|
drawText(canvas, width, height, very_word, SK_ColorBLACK, SK_ColorWHITE, "Google Sans", 30);
|
|
|
|
canvas->translate(width, 0);
|
|
|
|
|
|
|
|
drawText(canvas, width, height / 2, text, SK_ColorBLACK, SK_ColorWHITE, "Roboto", 20, 100,
|
|
|
|
u"\u2026");
|
|
|
|
canvas->translate(0, height / 2);
|
|
|
|
drawCode(canvas, width, height / 2);
|
|
|
|
canvas->translate(width, -height / 2);
|
|
|
|
|
|
|
|
drawText(canvas, width, height, cupertino, SK_ColorBLACK, SK_ColorWHITE, "Google Sans", 30);
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
typedef Sample INHERITED;
|
|
|
|
};
|
|
|
|
|
2019-07-23 14:11:03 +00:00
|
|
|
class ParagraphView3 : public ParagraphView_Base {
|
2019-05-30 20:12:56 +00:00
|
|
|
protected:
|
2019-07-03 14:55:44 +00:00
|
|
|
SkString name() override { return SkString("Paragraph3"); }
|
2019-05-30 20:12:56 +00:00
|
|
|
|
|
|
|
void drawLine(SkCanvas* canvas, SkScalar w, SkScalar h, const std::string& text,
|
|
|
|
TextAlign align, size_t lineLimit = std::numeric_limits<size_t>::max(),
|
|
|
|
bool RTL = false, SkColor background = SK_ColorGRAY,
|
|
|
|
const std::u16string& ellipsis = u"\u2026") {
|
|
|
|
SkAutoCanvasRestore acr(canvas, true);
|
|
|
|
|
|
|
|
canvas->clipRect(SkRect::MakeWH(w, h));
|
|
|
|
canvas->drawColor(SK_ColorWHITE);
|
|
|
|
|
|
|
|
SkScalar margin = 20;
|
|
|
|
|
|
|
|
SkPaint paint;
|
|
|
|
paint.setAntiAlias(true);
|
|
|
|
paint.setColor(SK_ColorBLACK);
|
|
|
|
|
|
|
|
SkPaint gray;
|
|
|
|
gray.setColor(background);
|
|
|
|
|
|
|
|
SkPaint yellow;
|
|
|
|
yellow.setColor(SK_ColorYELLOW);
|
|
|
|
|
|
|
|
TextStyle style;
|
|
|
|
style.setBackgroundColor(gray);
|
|
|
|
style.setForegroundColor(paint);
|
|
|
|
style.setFontFamilies({SkString("sans-serif")});
|
|
|
|
style.setFontSize(30);
|
|
|
|
ParagraphStyle paraStyle;
|
|
|
|
paraStyle.setTextStyle(style);
|
|
|
|
paraStyle.setTextAlign(align);
|
|
|
|
paraStyle.setMaxLines(lineLimit);
|
|
|
|
paraStyle.setEllipsis(ellipsis);
|
|
|
|
// paraStyle.setTextDirection(RTL ? SkTextDirection::rtl : SkTextDirection::ltr);
|
|
|
|
|
2019-06-21 16:22:32 +00:00
|
|
|
auto fontCollection = sk_make_sp<FontCollection>();
|
|
|
|
fontCollection->setDefaultFontManager(SkFontMgr::RefDefault());
|
|
|
|
ParagraphBuilderImpl builder(paraStyle, fontCollection);
|
2019-05-30 20:12:56 +00:00
|
|
|
if (RTL) {
|
|
|
|
builder.addText(mirror(text));
|
|
|
|
} else {
|
|
|
|
builder.addText(normal(text));
|
|
|
|
}
|
|
|
|
|
|
|
|
canvas->drawRect(SkRect::MakeXYWH(margin, margin, w - margin * 2, h - margin * 2), yellow);
|
|
|
|
auto paragraph = builder.Build();
|
|
|
|
paragraph->layout(w - margin * 2);
|
|
|
|
paragraph->paint(canvas, margin, margin);
|
|
|
|
}
|
|
|
|
|
|
|
|
std::u16string mirror(const std::string& text) {
|
|
|
|
std::u16string result;
|
|
|
|
result += u"\u202E";
|
|
|
|
// for (auto i = text.size(); i > 0; --i) {
|
|
|
|
// result += text[i - 1];
|
|
|
|
//}
|
|
|
|
|
|
|
|
for (auto i = text.size(); i > 0; --i) {
|
|
|
|
auto ch = text[i - 1];
|
|
|
|
if (ch == ',') {
|
|
|
|
result += u"!";
|
|
|
|
} else if (ch == '.') {
|
|
|
|
result += u"!";
|
|
|
|
} else {
|
|
|
|
result += ch;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
result += u"\u202C";
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
std::u16string normal(const std::string& text) {
|
|
|
|
std::u16string result;
|
|
|
|
result += u"\u202D";
|
|
|
|
for (auto ch : text) {
|
|
|
|
result += ch;
|
|
|
|
}
|
|
|
|
result += u"\u202C";
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
void onDrawContent(SkCanvas* canvas) override {
|
|
|
|
const std::string options = // { "open-source open-source open-source open-source" };
|
|
|
|
{"Flutter is an open-source project to help developers "
|
|
|
|
"build high-performance, high-fidelity, mobile apps for "
|
|
|
|
"iOS and Android "
|
|
|
|
"from a single codebase. This design lab is a playground "
|
|
|
|
"and showcase of Flutter's many widgets, behaviors, "
|
|
|
|
"animations, layouts, and more."};
|
|
|
|
|
|
|
|
canvas->drawColor(SK_ColorDKGRAY);
|
|
|
|
SkScalar width = this->width() / 4;
|
|
|
|
SkScalar height = this->height() / 2;
|
|
|
|
|
|
|
|
const std::string line =
|
|
|
|
"World domination is such an ugly phrase - I prefer to call it world optimisation";
|
|
|
|
|
|
|
|
drawLine(canvas, width, height, line, TextAlign::kLeft, 1, false, SK_ColorLTGRAY);
|
|
|
|
canvas->translate(width, 0);
|
|
|
|
drawLine(canvas, width, height, line, TextAlign::kRight, 2, false, SK_ColorLTGRAY);
|
|
|
|
canvas->translate(width, 0);
|
|
|
|
drawLine(canvas, width, height, line, TextAlign::kCenter, 3, false, SK_ColorLTGRAY);
|
|
|
|
canvas->translate(width, 0);
|
|
|
|
drawLine(canvas, width, height, line, TextAlign::kJustify, 4, false, SK_ColorLTGRAY);
|
|
|
|
canvas->translate(-width * 3, height);
|
|
|
|
|
|
|
|
drawLine(canvas, width, height, line, TextAlign::kLeft, 1, true, SK_ColorLTGRAY);
|
|
|
|
canvas->translate(width, 0);
|
|
|
|
drawLine(canvas, width, height, line, TextAlign::kRight, 2, true, SK_ColorLTGRAY);
|
|
|
|
canvas->translate(width, 0);
|
|
|
|
drawLine(canvas, width, height, line, TextAlign::kCenter, 3, true, SK_ColorLTGRAY);
|
|
|
|
canvas->translate(width, 0);
|
|
|
|
drawLine(canvas, width, height, line, TextAlign::kJustify, 4, true, SK_ColorLTGRAY);
|
|
|
|
canvas->translate(width, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
typedef Sample INHERITED;
|
|
|
|
};
|
|
|
|
|
2019-07-23 14:11:03 +00:00
|
|
|
class ParagraphView4 : public ParagraphView_Base {
|
2019-05-30 20:12:56 +00:00
|
|
|
protected:
|
2019-07-03 14:55:44 +00:00
|
|
|
SkString name() override { return SkString("Paragraph4"); }
|
2019-05-30 20:12:56 +00:00
|
|
|
|
|
|
|
void drawFlutter(SkCanvas* canvas, SkScalar w, SkScalar h,
|
|
|
|
const char* ff = "Google Sans", SkScalar fs = 30,
|
|
|
|
size_t lineLimit = std::numeric_limits<size_t>::max(),
|
|
|
|
const std::u16string& ellipsis = u"\u2026") {
|
|
|
|
SkAutoCanvasRestore acr(canvas, true);
|
|
|
|
|
|
|
|
canvas->clipRect(SkRect::MakeWH(w, h));
|
|
|
|
|
|
|
|
SkScalar margin = 20;
|
|
|
|
|
|
|
|
SkPaint black;
|
|
|
|
black.setAntiAlias(true);
|
|
|
|
black.setColor(SK_ColorBLACK);
|
|
|
|
|
|
|
|
SkPaint blue;
|
|
|
|
blue.setAntiAlias(true);
|
|
|
|
blue.setColor(SK_ColorBLUE);
|
|
|
|
|
|
|
|
SkPaint red;
|
|
|
|
red.setAntiAlias(true);
|
|
|
|
red.setColor(SK_ColorRED);
|
|
|
|
|
|
|
|
SkPaint green;
|
|
|
|
green.setAntiAlias(true);
|
|
|
|
green.setColor(SK_ColorGREEN);
|
|
|
|
|
|
|
|
SkPaint gray;
|
|
|
|
gray.setColor(SK_ColorLTGRAY);
|
|
|
|
|
|
|
|
SkPaint yellow;
|
|
|
|
yellow.setColor(SK_ColorYELLOW);
|
|
|
|
|
|
|
|
SkPaint magenta;
|
|
|
|
magenta.setAntiAlias(true);
|
|
|
|
magenta.setColor(SK_ColorMAGENTA);
|
|
|
|
|
|
|
|
TextStyle style;
|
|
|
|
style.setFontFamilies({SkString(ff)});
|
|
|
|
style.setFontSize(fs);
|
|
|
|
|
|
|
|
TextStyle style0;
|
|
|
|
style0.setForegroundColor(black);
|
|
|
|
style0.setBackgroundColor(gray);
|
|
|
|
style0.setFontFamilies({SkString(ff)});
|
|
|
|
style0.setFontSize(fs);
|
|
|
|
style0.setDecoration(TextDecoration::kUnderline);
|
|
|
|
style0.setDecorationStyle(TextDecorationStyle::kDouble);
|
|
|
|
style0.setDecorationColor(SK_ColorBLACK);
|
|
|
|
|
|
|
|
TextStyle style1;
|
|
|
|
style1.setForegroundColor(blue);
|
|
|
|
style1.setBackgroundColor(yellow);
|
|
|
|
style1.setFontFamilies({SkString(ff)});
|
|
|
|
style1.setFontSize(fs);
|
|
|
|
style1.setDecoration(TextDecoration::kOverline);
|
|
|
|
style1.setDecorationStyle(TextDecorationStyle::kWavy);
|
|
|
|
style1.setDecorationColor(SK_ColorBLACK);
|
|
|
|
|
|
|
|
TextStyle style2;
|
|
|
|
style2.setForegroundColor(red);
|
|
|
|
style2.setFontFamilies({SkString(ff)});
|
|
|
|
style2.setFontSize(fs);
|
|
|
|
|
|
|
|
TextStyle style3;
|
|
|
|
style3.setForegroundColor(green);
|
|
|
|
style3.setFontFamilies({SkString(ff)});
|
|
|
|
style3.setFontSize(fs);
|
|
|
|
|
|
|
|
TextStyle style4;
|
|
|
|
style4.setForegroundColor(magenta);
|
|
|
|
style4.setFontFamilies({SkString(ff)});
|
|
|
|
style4.setFontSize(fs);
|
|
|
|
|
|
|
|
ParagraphStyle paraStyle;
|
|
|
|
paraStyle.setTextStyle(style);
|
|
|
|
paraStyle.setMaxLines(lineLimit);
|
|
|
|
|
|
|
|
paraStyle.setEllipsis(ellipsis);
|
|
|
|
|
|
|
|
const char* logo1 = "google_";
|
|
|
|
const char* logo2 = "logo";
|
|
|
|
const char* logo3 = "go";
|
|
|
|
const char* logo4 = "ogle_logo";
|
|
|
|
const char* logo5 = "google_lo";
|
|
|
|
const char* logo6 = "go";
|
|
|
|
{
|
2019-07-23 14:11:03 +00:00
|
|
|
ParagraphBuilderImpl builder(paraStyle, fFC);
|
2019-05-30 20:12:56 +00:00
|
|
|
|
|
|
|
builder.pushStyle(style0);
|
|
|
|
builder.addText(logo1);
|
|
|
|
builder.pop();
|
|
|
|
builder.pushStyle(style1);
|
|
|
|
builder.addText(logo2);
|
|
|
|
builder.pop();
|
|
|
|
|
|
|
|
builder.addText(" ");
|
|
|
|
|
|
|
|
builder.pushStyle(style0);
|
|
|
|
builder.addText(logo3);
|
|
|
|
builder.pop();
|
|
|
|
builder.pushStyle(style1);
|
|
|
|
builder.addText(logo4);
|
|
|
|
builder.pop();
|
|
|
|
|
|
|
|
builder.addText(" ");
|
|
|
|
|
|
|
|
builder.pushStyle(style0);
|
|
|
|
builder.addText(logo5);
|
|
|
|
builder.pop();
|
|
|
|
builder.pushStyle(style1);
|
|
|
|
builder.addText(logo6);
|
|
|
|
builder.pop();
|
|
|
|
|
|
|
|
auto paragraph = builder.Build();
|
|
|
|
paragraph->layout(w - margin * 2);
|
|
|
|
paragraph->paint(canvas, margin, margin);
|
|
|
|
canvas->translate(0, h + margin);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void onDrawContent(SkCanvas* canvas) override {
|
|
|
|
canvas->drawColor(SK_ColorWHITE);
|
|
|
|
SkScalar width = this->width();
|
|
|
|
SkScalar height = this->height();
|
|
|
|
|
|
|
|
drawFlutter(canvas, width, height / 2);
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
typedef Sample INHERITED;
|
|
|
|
};
|
|
|
|
|
2019-07-23 14:11:03 +00:00
|
|
|
class ParagraphView5 : public ParagraphView_Base {
|
2019-05-30 20:12:56 +00:00
|
|
|
protected:
|
2019-06-21 16:22:32 +00:00
|
|
|
SkString name() override { return SkString("Paragraph5"); }
|
2019-05-30 20:12:56 +00:00
|
|
|
|
|
|
|
void bidi(SkCanvas* canvas, SkScalar w, SkScalar h, const std::u16string& text,
|
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const std::u16string& expected, size_t lineLimit = std::numeric_limits<size_t>::max(),
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const char* ff = "Roboto", SkScalar fs = 30,
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const std::u16string& ellipsis = u"\u2026") {
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SkAutoCanvasRestore acr(canvas, true);
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canvas->clipRect(SkRect::MakeWH(w, h));
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SkScalar margin = 20;
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SkPaint black;
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black.setColor(SK_ColorBLACK);
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SkPaint gray;
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gray.setColor(SK_ColorLTGRAY);
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TextStyle style;
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style.setForegroundColor(black);
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style.setFontFamilies({SkString(ff)});
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style.setFontSize(fs);
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TextStyle style0;
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style0.setForegroundColor(black);
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style0.setFontFamilies({SkString(ff)});
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style0.setFontSize(fs);
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style0.setFontStyle(SkFontStyle(SkFontStyle::kNormal_Weight, SkFontStyle::kNormal_Width,
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SkFontStyle::kItalic_Slant));
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TextStyle style1;
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style1.setForegroundColor(gray);
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style1.setFontFamilies({SkString(ff)});
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style1.setFontSize(fs);
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style1.setFontStyle(SkFontStyle(SkFontStyle::kBold_Weight, SkFontStyle::kNormal_Width,
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SkFontStyle::kUpright_Slant));
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ParagraphStyle paraStyle;
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paraStyle.setTextStyle(style);
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paraStyle.setMaxLines(lineLimit);
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paraStyle.setEllipsis(ellipsis);
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|
2019-07-23 14:11:03 +00:00
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ParagraphBuilderImpl builder(paraStyle, fFC);
|
2019-05-30 20:12:56 +00:00
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if (text.empty()) {
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const std::u16string text0 = u"\u202Dabc";
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const std::u16string text1 = u"\u202EFED";
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const std::u16string text2 = u"\u202Dghi";
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const std::u16string text3 = u"\u202ELKJ";
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const std::u16string text4 = u"\u202Dmno";
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builder.pushStyle(style0);
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builder.addText(text0);
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builder.pop();
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builder.pushStyle(style1);
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builder.addText(text1);
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builder.pop();
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builder.pushStyle(style0);
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builder.addText(text2);
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builder.pop();
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builder.pushStyle(style1);
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builder.addText(text3);
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builder.pop();
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builder.pushStyle(style0);
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builder.addText(text4);
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builder.pop();
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} else {
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// icu::UnicodeString unicode((UChar*) text.data(), SkToS32(text.size()));
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// std::string str;
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// unicode.toUTF8String(str);
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// SkDebugf("Text: %s\n", str.c_str());
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builder.addText(text + expected);
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}
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auto paragraph = builder.Build();
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paragraph->layout(w - margin * 2);
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paragraph->paint(canvas, margin, margin);
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}
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void onDrawContent(SkCanvas* canvas) override {
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canvas->drawColor(SK_ColorWHITE);
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SkScalar width = this->width();
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SkScalar height = this->height() / 8;
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const std::u16string text1 =
|
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u"A \u202ENAC\u202Cner, exceedingly \u202ENAC\u202Cny,\n"
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|
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"One morning remarked to his granny:\n"
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"A \u202ENAC\u202Cner \u202ENAC\u202C \u202ENAC\u202C,\n"
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|
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"Anything that he \u202ENAC\u202C,\n"
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"But a \u202ENAC\u202Cner \u202ENAC\u202C't \u202ENAC\u202C a \u202ENAC\u202C, "
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|
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"\u202ENAC\u202C he?";
|
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|
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bidi(canvas, width, height * 3, text1, u"", 5);
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|
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canvas->translate(0, height * 3);
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bidi(canvas, width, height, u"\u2067DETALOSI\u2069", u"");
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|
|
canvas->translate(0, height);
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bidi(canvas, width, height, u"\u202BDEDDEBME\u202C", u"");
|
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|
|
canvas->translate(0, height);
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|
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bidi(canvas, width, height, u"\u202EEDIRREVO\u202C", u"");
|
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|
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canvas->translate(0, height);
|
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bidi(canvas, width, height, u"\u200FTICILPMI\u200E", u"");
|
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|
|
canvas->translate(0, height);
|
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|
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bidi(canvas, width, height, u"123 456 7890 \u202EZYXWV UTS RQP ONM LKJ IHG FED CBA\u202C.",
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|
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u"", 2);
|
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|
|
canvas->translate(0, height);
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|
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// bidi(canvas, width, height, u"", u"");
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|
|
// canvas->translate(0, height);
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|
|
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}
|
|
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|
|
|
private:
|
|
|
|
typedef Sample INHERITED;
|
|
|
|
};
|
|
|
|
|
2019-07-23 14:11:03 +00:00
|
|
|
class ParagraphView6 : public ParagraphView_Base {
|
2019-05-30 20:12:56 +00:00
|
|
|
protected:
|
2019-06-21 16:22:32 +00:00
|
|
|
SkString name() override { return SkString("Paragraph6"); }
|
2019-05-30 20:12:56 +00:00
|
|
|
|
|
|
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void hangingS(SkCanvas* canvas, SkScalar w, SkScalar h, SkScalar fs = 60.0) {
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|
|
auto ff = "HangingS";
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|
|
canvas->drawColor(SK_ColorLTGRAY);
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|
|
SkPaint black;
|
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|
|
black.setAntiAlias(true);
|
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|
|
black.setColor(SK_ColorBLACK);
|
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|
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|
|
SkPaint blue;
|
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|
|
blue.setAntiAlias(true);
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|
|
blue.setColor(SK_ColorBLUE);
|
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|
|
SkPaint red;
|
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|
|
red.setAntiAlias(true);
|
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|
|
red.setColor(SK_ColorRED);
|
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|
|
SkPaint green;
|
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|
|
green.setAntiAlias(true);
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|
|
green.setColor(SK_ColorGREEN);
|
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|
|
SkPaint gray;
|
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|
|
gray.setColor(SK_ColorCYAN);
|
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|
|
SkPaint yellow;
|
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|
|
yellow.setColor(SK_ColorYELLOW);
|
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|
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|
|
SkPaint magenta;
|
|
|
|
magenta.setAntiAlias(true);
|
|
|
|
magenta.setColor(SK_ColorMAGENTA);
|
|
|
|
|
|
|
|
SkFontStyle fontStyle(SkFontStyle::kBold_Weight, SkFontStyle::kNormal_Width,
|
|
|
|
SkFontStyle::kItalic_Slant);
|
|
|
|
|
|
|
|
TextStyle style;
|
|
|
|
style.setFontFamilies({SkString(ff)});
|
|
|
|
style.setFontSize(fs);
|
|
|
|
style.setFontStyle(fontStyle);
|
|
|
|
|
|
|
|
TextStyle style0;
|
|
|
|
style0.setForegroundColor(black);
|
|
|
|
style0.setBackgroundColor(gray);
|
|
|
|
style0.setFontFamilies({SkString(ff)});
|
|
|
|
style0.setFontSize(fs);
|
|
|
|
style0.setFontStyle(fontStyle);
|
|
|
|
|
|
|
|
TextStyle style1;
|
|
|
|
style1.setForegroundColor(blue);
|
|
|
|
style1.setBackgroundColor(yellow);
|
|
|
|
style1.setFontFamilies({SkString(ff)});
|
|
|
|
style1.setFontSize(fs);
|
|
|
|
style1.setFontStyle(fontStyle);
|
|
|
|
|
|
|
|
TextStyle style2;
|
|
|
|
style2.setForegroundColor(red);
|
|
|
|
style2.setFontFamilies({SkString(ff)});
|
|
|
|
style2.setFontSize(fs);
|
|
|
|
style2.setFontStyle(fontStyle);
|
|
|
|
|
|
|
|
TextStyle style3;
|
|
|
|
style3.setForegroundColor(green);
|
|
|
|
style3.setFontFamilies({SkString(ff)});
|
|
|
|
style3.setFontSize(fs);
|
|
|
|
style3.setFontStyle(fontStyle);
|
|
|
|
|
|
|
|
TextStyle style4;
|
|
|
|
style4.setForegroundColor(magenta);
|
|
|
|
style4.setFontFamilies({SkString(ff)});
|
|
|
|
style4.setFontSize(fs);
|
|
|
|
style4.setFontStyle(fontStyle);
|
|
|
|
|
|
|
|
ParagraphStyle paraStyle;
|
|
|
|
paraStyle.setTextStyle(style);
|
|
|
|
|
|
|
|
const char* logo1 = "S";
|
|
|
|
const char* logo2 = "kia";
|
|
|
|
const char* logo3 = "Sk";
|
|
|
|
const char* logo4 = "ia";
|
|
|
|
const char* logo5 = "Ski";
|
|
|
|
const char* logo6 = "a";
|
|
|
|
{
|
2019-07-23 14:11:03 +00:00
|
|
|
ParagraphBuilderImpl builder(paraStyle, fFC);
|
2019-05-30 20:12:56 +00:00
|
|
|
|
|
|
|
builder.pushStyle(style0);
|
|
|
|
builder.addText(logo1);
|
|
|
|
builder.pop();
|
|
|
|
builder.pushStyle(style1);
|
|
|
|
builder.addText(logo2);
|
|
|
|
builder.pop();
|
|
|
|
|
|
|
|
builder.addText(" ");
|
|
|
|
|
|
|
|
builder.pushStyle(style0);
|
|
|
|
builder.addText(logo3);
|
|
|
|
builder.pop();
|
|
|
|
builder.pushStyle(style1);
|
|
|
|
builder.addText(logo4);
|
|
|
|
builder.pop();
|
|
|
|
|
|
|
|
builder.addText(" ");
|
|
|
|
|
|
|
|
builder.pushStyle(style0);
|
|
|
|
builder.addText(logo5);
|
|
|
|
builder.pop();
|
|
|
|
builder.pushStyle(style1);
|
|
|
|
builder.addText(logo6);
|
|
|
|
builder.pop();
|
|
|
|
|
|
|
|
auto paragraph = builder.Build();
|
|
|
|
paragraph->layout(w);
|
|
|
|
paragraph->paint(canvas, 40, 40);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
}
|
|
|
|
|
|
|
|
const char* logo11 = "S";
|
|
|
|
const char* logo12 = "S";
|
|
|
|
const char* logo13 = "S";
|
|
|
|
const char* logo14 = "S";
|
|
|
|
const char* logo15 = "S";
|
|
|
|
const char* logo16 = "S";
|
|
|
|
{
|
2019-07-23 14:11:03 +00:00
|
|
|
ParagraphBuilderImpl builder(paraStyle, fFC);
|
2019-05-30 20:12:56 +00:00
|
|
|
|
|
|
|
builder.pushStyle(style0);
|
|
|
|
builder.addText(logo11);
|
|
|
|
builder.pop();
|
|
|
|
builder.pushStyle(style1);
|
|
|
|
builder.addText(logo12);
|
|
|
|
builder.pop();
|
|
|
|
|
|
|
|
builder.addText(" ");
|
|
|
|
|
|
|
|
builder.pushStyle(style0);
|
|
|
|
builder.addText(logo13);
|
|
|
|
builder.pop();
|
|
|
|
builder.pushStyle(style1);
|
|
|
|
builder.addText(logo14);
|
|
|
|
builder.pop();
|
|
|
|
|
|
|
|
builder.addText(" ");
|
|
|
|
|
|
|
|
builder.pushStyle(style0);
|
|
|
|
builder.addText(logo15);
|
|
|
|
builder.pop();
|
|
|
|
builder.pushStyle(style1);
|
|
|
|
builder.addText(logo16);
|
|
|
|
builder.pop();
|
|
|
|
|
|
|
|
auto paragraph = builder.Build();
|
|
|
|
paragraph->layout(w);
|
|
|
|
paragraph->paint(canvas, 40, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void onDrawContent(SkCanvas* canvas) override {
|
|
|
|
canvas->drawColor(SK_ColorWHITE);
|
|
|
|
SkScalar width = this->width();
|
|
|
|
SkScalar height = this->height() / 4;
|
|
|
|
|
|
|
|
hangingS(canvas, width, height);
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
typedef Sample INHERITED;
|
|
|
|
};
|
|
|
|
|
2019-07-23 14:11:03 +00:00
|
|
|
class ParagraphView7 : public ParagraphView_Base {
|
2019-05-30 20:12:56 +00:00
|
|
|
protected:
|
2019-07-03 14:55:44 +00:00
|
|
|
SkString name() override { return SkString("Paragraph7"); }
|
2019-05-30 20:12:56 +00:00
|
|
|
|
|
|
|
void drawText(SkCanvas* canvas, SkColor background, SkScalar letterSpace, SkScalar w,
|
|
|
|
SkScalar h) {
|
|
|
|
SkAutoCanvasRestore acr(canvas, true);
|
|
|
|
canvas->clipRect(SkRect::MakeWH(w, h));
|
|
|
|
canvas->drawColor(background);
|
|
|
|
|
|
|
|
const char* line =
|
|
|
|
"World domination is such an ugly phrase - I prefer to call it world optimisation";
|
|
|
|
|
|
|
|
ParagraphStyle paragraphStyle;
|
|
|
|
paragraphStyle.setTextAlign(TextAlign::kLeft);
|
|
|
|
paragraphStyle.setMaxLines(10);
|
|
|
|
paragraphStyle.turnHintingOff();
|
|
|
|
TextStyle textStyle;
|
|
|
|
textStyle.setFontFamilies({SkString("Roboto")});
|
|
|
|
textStyle.setFontSize(30);
|
|
|
|
textStyle.setLetterSpacing(letterSpace);
|
|
|
|
textStyle.setColor(SK_ColorBLACK);
|
|
|
|
textStyle.setFontStyle(SkFontStyle(SkFontStyle::kMedium_Weight, SkFontStyle::kNormal_Width,
|
|
|
|
SkFontStyle::kUpright_Slant));
|
|
|
|
|
2019-07-23 14:11:03 +00:00
|
|
|
ParagraphBuilderImpl builder(paragraphStyle, fFC);
|
2019-05-30 20:12:56 +00:00
|
|
|
builder.pushStyle(textStyle);
|
|
|
|
builder.addText(line);
|
|
|
|
builder.pop();
|
|
|
|
|
|
|
|
auto paragraph = builder.Build();
|
|
|
|
paragraph->layout(w - 20);
|
|
|
|
paragraph->paint(canvas, 10, 10);
|
|
|
|
}
|
|
|
|
|
|
|
|
void onDrawContent(SkCanvas* canvas) override {
|
|
|
|
canvas->drawColor(SK_ColorWHITE);
|
|
|
|
|
|
|
|
auto h = this->height() / 4;
|
|
|
|
auto w = this->width() / 2;
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorGRAY, 1, w, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorLTGRAY, 2, w, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorCYAN, 3, w, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorGRAY, 4, w, h);
|
|
|
|
canvas->translate(w, -3 * h);
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorYELLOW, 5, w, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorGREEN, 10, w, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorRED, 15, w, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorBLUE, 20, w, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
typedef Sample INHERITED;
|
|
|
|
};
|
|
|
|
|
2019-07-23 14:11:03 +00:00
|
|
|
class ParagraphView8 : public ParagraphView_Base {
|
2019-05-30 20:12:56 +00:00
|
|
|
protected:
|
2019-07-03 14:55:44 +00:00
|
|
|
SkString name() override { return SkString("Paragraph7"); }
|
2019-05-30 20:12:56 +00:00
|
|
|
|
|
|
|
void drawText(SkCanvas* canvas, SkColor background, SkScalar wordSpace, SkScalar w,
|
|
|
|
SkScalar h) {
|
|
|
|
SkAutoCanvasRestore acr(canvas, true);
|
|
|
|
canvas->clipRect(SkRect::MakeWH(w, h));
|
|
|
|
canvas->drawColor(background);
|
|
|
|
|
|
|
|
const char* line =
|
|
|
|
"World domination is such an ugly phrase - I prefer to call it world optimisation";
|
|
|
|
|
|
|
|
ParagraphStyle paragraphStyle;
|
|
|
|
paragraphStyle.setTextAlign(TextAlign::kLeft);
|
|
|
|
paragraphStyle.setMaxLines(10);
|
|
|
|
paragraphStyle.turnHintingOff();
|
|
|
|
TextStyle textStyle;
|
|
|
|
textStyle.setFontFamilies({SkString("Roboto")});
|
|
|
|
textStyle.setFontSize(30);
|
|
|
|
textStyle.setWordSpacing(wordSpace);
|
|
|
|
textStyle.setColor(SK_ColorBLACK);
|
|
|
|
textStyle.setFontStyle(SkFontStyle(SkFontStyle::kMedium_Weight, SkFontStyle::kNormal_Width,
|
|
|
|
SkFontStyle::kUpright_Slant));
|
|
|
|
|
2019-07-23 14:11:03 +00:00
|
|
|
ParagraphBuilderImpl builder(paragraphStyle, fFC);
|
2019-05-30 20:12:56 +00:00
|
|
|
builder.pushStyle(textStyle);
|
|
|
|
builder.addText(line);
|
|
|
|
builder.pop();
|
|
|
|
|
|
|
|
auto paragraph = builder.Build();
|
|
|
|
paragraph->layout(w - 20);
|
|
|
|
paragraph->paint(canvas, 10, 10);
|
|
|
|
}
|
|
|
|
|
|
|
|
void onDrawContent(SkCanvas* canvas) override {
|
|
|
|
canvas->drawColor(SK_ColorWHITE);
|
|
|
|
|
|
|
|
auto h = this->height() / 4;
|
|
|
|
auto w = this->width() / 2;
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorGRAY, 1, w, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorLTGRAY, 2, w, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorCYAN, 3, w, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorGRAY, 4, w, h);
|
|
|
|
canvas->translate(w, -3 * h);
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorYELLOW, 5, w, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorGREEN, 10, w, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorRED, 15, w, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorBLUE, 20, w, h);
|
|
|
|
canvas->translate(0, h);
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
typedef Sample INHERITED;
|
|
|
|
};
|
|
|
|
|
2019-07-23 14:11:03 +00:00
|
|
|
class ParagraphView9 : public ParagraphView_Base {
|
2019-05-30 20:12:56 +00:00
|
|
|
protected:
|
2019-07-03 14:55:44 +00:00
|
|
|
SkString name() override { return SkString("Paragraph9"); }
|
2019-05-30 20:12:56 +00:00
|
|
|
|
2019-07-03 19:53:04 +00:00
|
|
|
bool onChar(SkUnichar uni) override {
|
2019-05-30 20:12:56 +00:00
|
|
|
switch (uni) {
|
|
|
|
case 'w':
|
|
|
|
++wordSpacing;
|
|
|
|
return true;
|
|
|
|
case 'q':
|
|
|
|
if (wordSpacing > 0) --wordSpacing;
|
|
|
|
return true;
|
|
|
|
case 'l':
|
|
|
|
++letterSpacing;
|
|
|
|
return true;
|
|
|
|
case 'k':
|
|
|
|
if (letterSpacing > 0) --letterSpacing;
|
|
|
|
return true;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
2019-07-03 19:53:04 +00:00
|
|
|
return false;
|
2019-05-30 20:12:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void drawText(SkCanvas* canvas, SkColor background, SkScalar w, SkScalar h) {
|
|
|
|
SkAutoCanvasRestore acr(canvas, true);
|
|
|
|
canvas->clipRect(SkRect::MakeWH(w, h));
|
|
|
|
canvas->drawColor(background);
|
|
|
|
|
|
|
|
const char* text =
|
|
|
|
"( ´・‿・`)( ´・‿・`)( ´・‿・`)( ´・‿・`)( ´・‿・`)( ´・‿・`)( ´・‿・`)("
|
|
|
|
" ´・‿・`)( ´・‿・`)( ´・‿・`)( ´・‿・`)( ´・‿・`)( ´・‿・`)( ´・‿・`)("
|
|
|
|
" ´・‿・`)( ´・‿・`)( ´・‿・`)( ´・‿・`)( ´・‿・`)( ´・‿・`)";
|
|
|
|
|
|
|
|
ParagraphStyle paragraphStyle;
|
|
|
|
paragraphStyle.setTextAlign(TextAlign::kLeft);
|
|
|
|
paragraphStyle.setMaxLines(10);
|
|
|
|
paragraphStyle.turnHintingOff();
|
|
|
|
TextStyle textStyle;
|
|
|
|
textStyle.setFontFamilies({SkString("Roboto")});
|
|
|
|
textStyle.setFontSize(50);
|
|
|
|
textStyle.setHeight(1.3f);
|
|
|
|
textStyle.setColor(SK_ColorBLACK);
|
|
|
|
textStyle.setFontStyle(SkFontStyle(SkFontStyle::kMedium_Weight, SkFontStyle::kNormal_Width,
|
|
|
|
SkFontStyle::kUpright_Slant));
|
|
|
|
|
2019-07-23 14:11:03 +00:00
|
|
|
ParagraphBuilderImpl builder(paragraphStyle, fFC);
|
2019-05-30 20:12:56 +00:00
|
|
|
builder.pushStyle(textStyle);
|
|
|
|
builder.addText(text);
|
|
|
|
builder.pop();
|
|
|
|
|
|
|
|
auto paragraph = builder.Build();
|
|
|
|
paragraph->layout(550);
|
|
|
|
|
|
|
|
std::vector<size_t> sizes = {0, 1, 2, 8, 19, 21, 22, 30, 150};
|
|
|
|
|
|
|
|
std::vector<size_t> colors = {SK_ColorBLUE, SK_ColorCYAN, SK_ColorLTGRAY, SK_ColorGREEN,
|
|
|
|
SK_ColorRED, SK_ColorWHITE, SK_ColorYELLOW, SK_ColorMAGENTA};
|
|
|
|
|
|
|
|
RectHeightStyle rect_height_style = RectHeightStyle::kTight;
|
|
|
|
RectWidthStyle rect_width_style = RectWidthStyle::kTight;
|
|
|
|
|
|
|
|
for (size_t i = 0; i < sizes.size() - 1; ++i) {
|
|
|
|
size_t from = (i == 0 ? 0 : 1) + sizes[i];
|
|
|
|
size_t to = sizes[i + 1];
|
|
|
|
auto boxes = paragraph->getRectsForRange(from, to, rect_height_style, rect_width_style);
|
|
|
|
if (boxes.empty()) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
for (auto& box : boxes) {
|
|
|
|
SkPaint paint;
|
|
|
|
paint.setColor(colors[i % colors.size()]);
|
|
|
|
paint.setShader(setgrad(box.rect, colors[i % colors.size()], SK_ColorWHITE));
|
|
|
|
canvas->drawRect(box.rect, paint);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
paragraph->paint(canvas, 0, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
void onDrawContent(SkCanvas* canvas) override {
|
|
|
|
canvas->drawColor(SK_ColorWHITE);
|
|
|
|
|
|
|
|
auto h = this->height();
|
|
|
|
auto w = this->width();
|
|
|
|
|
|
|
|
drawText(canvas, SK_ColorGRAY, w, h);
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
typedef Sample INHERITED;
|
|
|
|
SkScalar letterSpacing;
|
|
|
|
SkScalar wordSpacing;
|
|
|
|
};
|
|
|
|
|
2019-07-23 14:11:03 +00:00
|
|
|
class ParagraphView10 : public ParagraphView_Base {
|
2019-05-30 20:12:56 +00:00
|
|
|
protected:
|
2019-07-03 14:55:44 +00:00
|
|
|
SkString name() override { return SkString("Paragraph10"); }
|
2019-05-30 20:12:56 +00:00
|
|
|
|
|
|
|
void onDrawContent(SkCanvas* canvas) override {
|
|
|
|
canvas->drawColor(SK_ColorWHITE);
|
|
|
|
|
|
|
|
const char* text = "English English 字典 字典 😀😃😄 😀😃😄";
|
|
|
|
ParagraphStyle paragraph_style;
|
|
|
|
paragraph_style.turnHintingOff();
|
2019-07-23 14:11:03 +00:00
|
|
|
ParagraphBuilderImpl builder(paragraph_style, fFC);
|
2019-05-30 20:12:56 +00:00
|
|
|
|
|
|
|
TextStyle text_style;
|
2019-06-21 16:22:32 +00:00
|
|
|
text_style.setFontFamilies({SkString("Roboto"),
|
|
|
|
SkString("Noto Color Emoji"),
|
2019-05-30 20:12:56 +00:00
|
|
|
SkString("Source Han Serif CN")});
|
|
|
|
text_style.setColor(SK_ColorRED);
|
|
|
|
text_style.setFontSize(60);
|
|
|
|
text_style.setLetterSpacing(0);
|
|
|
|
text_style.setWordSpacing(0);
|
|
|
|
text_style.setColor(SK_ColorBLACK);
|
|
|
|
text_style.setHeight(1);
|
|
|
|
builder.pushStyle(text_style);
|
|
|
|
builder.addText(text);
|
|
|
|
builder.pop();
|
|
|
|
|
|
|
|
auto paragraph = builder.Build();
|
|
|
|
paragraph->layout(width());
|
|
|
|
|
|
|
|
paragraph->paint(canvas, 0, 0);
|
|
|
|
SkDEBUGCODE(auto impl = reinterpret_cast<ParagraphImpl*>(paragraph.get()));
|
|
|
|
SkASSERT(impl->runs().size() == 3);
|
2019-06-21 16:22:32 +00:00
|
|
|
SkASSERT(impl->runs()[0].textRange().end == impl->runs()[1].textRange().start);
|
|
|
|
SkASSERT(impl->runs()[1].textRange().end == impl->runs()[2].textRange().start);
|
2019-05-30 20:12:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
typedef Sample INHERITED;
|
|
|
|
};
|
|
|
|
|
2019-07-23 14:11:03 +00:00
|
|
|
class ParagraphView11 : public ParagraphView_Base {
|
2019-05-30 20:12:56 +00:00
|
|
|
protected:
|
2019-07-03 14:55:44 +00:00
|
|
|
SkString name() override { return SkString("Paragraph11"); }
|
2019-05-30 20:12:56 +00:00
|
|
|
|
|
|
|
void onDrawContent(SkCanvas* canvas) override {
|
|
|
|
canvas->drawColor(SK_ColorWHITE);
|
2019-06-21 16:22:32 +00:00
|
|
|
const char* text = "The same text many times";
|
|
|
|
|
|
|
|
for (size_t i = 0; i < 10; i++) {
|
|
|
|
ParagraphStyle paragraph_style;
|
2019-07-23 14:11:03 +00:00
|
|
|
ParagraphBuilderImpl builder(paragraph_style, fFC);
|
2019-06-21 16:22:32 +00:00
|
|
|
TextStyle text_style;
|
|
|
|
text_style.setFontFamilies({SkString("Roboto")});
|
|
|
|
text_style.setColor(SK_ColorBLACK);
|
|
|
|
text_style.setFontSize(10 + 2 * (i % 10));
|
|
|
|
builder.pushStyle(text_style);
|
|
|
|
builder.addText(text);
|
|
|
|
builder.pop();
|
|
|
|
auto paragraph = builder.Build();
|
|
|
|
paragraph->layout(500);
|
2019-07-23 14:11:03 +00:00
|
|
|
paragraph->paint(canvas, 0, 40 * (i % 10));
|
2019-06-21 16:22:32 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
typedef Sample INHERITED;
|
|
|
|
};
|
|
|
|
|
|
|
|
// Measure different stages of layout/paint
|
2019-07-23 14:11:03 +00:00
|
|
|
class ParagraphView12 : public ParagraphView_Base {
|
2019-06-21 16:22:32 +00:00
|
|
|
protected:
|
|
|
|
SkString name() override { return SkString("Paragraph12"); }
|
|
|
|
|
|
|
|
void onDrawContent(SkCanvas* canvas) override {
|
2019-05-30 20:12:56 +00:00
|
|
|
ParagraphStyle paragraph_style;
|
2019-06-21 16:22:32 +00:00
|
|
|
paragraph_style.setMaxLines(14);
|
|
|
|
paragraph_style.setTextAlign(TextAlign::kLeft);
|
2019-05-30 20:12:56 +00:00
|
|
|
paragraph_style.turnHintingOff();
|
2019-07-23 14:11:03 +00:00
|
|
|
ParagraphBuilderImpl builder(paragraph_style, fFC);
|
2019-05-30 20:12:56 +00:00
|
|
|
|
|
|
|
TextStyle text_style;
|
2019-06-21 16:22:32 +00:00
|
|
|
text_style.setFontFamilies({SkString("Roboto")});
|
|
|
|
text_style.setFontSize(26);
|
2019-05-30 20:12:56 +00:00
|
|
|
text_style.setColor(SK_ColorBLACK);
|
2019-06-21 16:22:32 +00:00
|
|
|
text_style.setHeight(1);
|
|
|
|
text_style.setDecoration(TextDecoration::kUnderline);
|
|
|
|
text_style.setDecorationColor(SK_ColorBLACK);
|
2019-05-30 20:12:56 +00:00
|
|
|
builder.pushStyle(text_style);
|
2019-06-21 16:22:32 +00:00
|
|
|
builder.addText(gText);
|
2019-05-30 20:12:56 +00:00
|
|
|
builder.pop();
|
|
|
|
|
|
|
|
auto paragraph = builder.Build();
|
2019-06-21 16:22:32 +00:00
|
|
|
auto impl = reinterpret_cast<ParagraphImpl*>(paragraph.get());
|
|
|
|
impl->turnOnCache(false);
|
2019-06-19 17:32:01 +00:00
|
|
|
|
2019-06-21 16:22:32 +00:00
|
|
|
for (auto i = 0; i < 1000; ++i) {
|
|
|
|
impl->setState(kUnknown);
|
|
|
|
impl->shapeTextIntoEndlessLine();
|
|
|
|
impl->setState(kShaped);
|
|
|
|
}
|
|
|
|
|
|
|
|
for (auto i = 0; i < 1000; ++i) {
|
|
|
|
impl->setState(kShaped);
|
|
|
|
impl->buildClusterTable();
|
|
|
|
impl->markLineBreaks();
|
|
|
|
impl->setState(kMarked);
|
|
|
|
}
|
|
|
|
|
|
|
|
for (auto i = 0; i < 1000; ++i) {
|
|
|
|
impl->setState(kMarked);
|
|
|
|
impl->breakShapedTextIntoLines(1000);
|
|
|
|
impl->setState(kLineBroken);
|
|
|
|
}
|
|
|
|
|
|
|
|
for (auto i = 0; i < 1000; ++i) {
|
|
|
|
impl->setState(kLineBroken);
|
|
|
|
impl->formatLines(1000);
|
|
|
|
impl->setState(kFormatted);
|
|
|
|
}
|
|
|
|
|
|
|
|
for (auto i = 0; i < 1000; ++i) {
|
|
|
|
impl->setState(kFormatted);
|
|
|
|
impl->paintLinesIntoPicture();
|
|
|
|
impl->setState(kDrawn);
|
|
|
|
}
|
|
|
|
|
|
|
|
auto picture = impl->getPicture();
|
|
|
|
SkMatrix matrix = SkMatrix::MakeTrans(0, 0);
|
|
|
|
for (auto i = 0; i < 1000; ++i) {
|
|
|
|
canvas->drawPicture(picture, &matrix, nullptr);
|
|
|
|
}
|
2019-06-21 16:22:32 +00:00
|
|
|
|
2019-05-30 20:12:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
typedef Sample INHERITED;
|
|
|
|
};
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
DEF_SAMPLE(return new ParagraphView1();)
|
|
|
|
DEF_SAMPLE(return new ParagraphView2();)
|
|
|
|
DEF_SAMPLE(return new ParagraphView3();)
|
|
|
|
DEF_SAMPLE(return new ParagraphView4();)
|
|
|
|
DEF_SAMPLE(return new ParagraphView5();)
|
|
|
|
DEF_SAMPLE(return new ParagraphView6();)
|
|
|
|
DEF_SAMPLE(return new ParagraphView7();)
|
|
|
|
DEF_SAMPLE(return new ParagraphView8();)
|
|
|
|
DEF_SAMPLE(return new ParagraphView9();)
|
|
|
|
DEF_SAMPLE(return new ParagraphView10();)
|
|
|
|
DEF_SAMPLE(return new ParagraphView11();)
|
2019-06-21 16:22:32 +00:00
|
|
|
DEF_SAMPLE(return new ParagraphView12();)
|