blob: 81013ed15b389e0472b270a8ed1aef0eaa0bfc02 [file] [log] [blame]
/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm/gm.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkBlendMode.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkFont.h"
#include "include/core/SkFontStyle.h"
#include "include/core/SkFontTypes.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPaint.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkShader.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkTileMode.h"
#include "include/core/SkTypeface.h"
#include "include/core/SkTypes.h"
#include "include/effects/SkGradientShader.h"
#include "include/utils/SkTextUtils.h"
#include "src/base/SkUTF.h"
#include "tools/ToolUtils.h"
#include <string.h>
namespace {
static uint16_t gData[] = { 0xFFFF, 0xCCCF, 0xCCCF, 0xFFFF };
class ColorEmojiBlendModesGM : public skiagm::GM {
public:
const static int W = 64;
const static int H = 64;
ColorEmojiBlendModesGM() {}
protected:
void onOnceBeforeDraw() override {
const SkColor colors[] = {
SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE,
SK_ColorMAGENTA, SK_ColorCYAN, SK_ColorYELLOW
};
SkMatrix local;
local.setRotate(180);
SkPaint paint;
paint.setAntiAlias(true);
paint.setShader(SkGradientShader::MakeSweep(0, 0, colors, nullptr, std::size(colors),
0, &local));
sk_sp<SkTypeface> orig(ToolUtils::create_portable_typeface("serif", SkFontStyle::Bold()));
if (nullptr == orig) {
orig = SkTypeface::MakeDefault();
}
fColorType = ToolUtils::emoji_typeface();
fBG.installPixels(SkImageInfo::Make(2, 2, kARGB_4444_SkColorType,
kOpaque_SkAlphaType), gData, 4);
}
SkString onShortName() override {
return SkString("coloremoji_blendmodes");
}
SkISize onISize() override {
return {400, 640};
}
void onDraw(SkCanvas* canvas) override {
canvas->translate(SkIntToScalar(10), SkIntToScalar(20));
const SkBlendMode gModes[] = {
SkBlendMode::kClear,
SkBlendMode::kSrc,
SkBlendMode::kDst,
SkBlendMode::kSrcOver,
SkBlendMode::kDstOver,
SkBlendMode::kSrcIn,
SkBlendMode::kDstIn,
SkBlendMode::kSrcOut,
SkBlendMode::kDstOut,
SkBlendMode::kSrcATop,
SkBlendMode::kDstATop,
SkBlendMode::kXor,
SkBlendMode::kPlus,
SkBlendMode::kModulate,
SkBlendMode::kScreen,
SkBlendMode::kOverlay,
SkBlendMode::kDarken,
SkBlendMode::kLighten,
SkBlendMode::kColorDodge,
SkBlendMode::kColorBurn,
SkBlendMode::kHardLight,
SkBlendMode::kSoftLight,
SkBlendMode::kDifference,
SkBlendMode::kExclusion,
SkBlendMode::kMultiply,
SkBlendMode::kHue,
SkBlendMode::kSaturation,
SkBlendMode::kColor,
SkBlendMode::kLuminosity,
};
const SkScalar w = SkIntToScalar(W);
const SkScalar h = SkIntToScalar(H);
SkMatrix m;
m.setScale(SkIntToScalar(6), SkIntToScalar(6));
auto s = fBG.makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat, SkSamplingOptions(), m);
SkFont labelFont(ToolUtils::create_portable_typeface());
SkPaint textP;
textP.setAntiAlias(true);
SkFont textFont(fColorType, 70);
const int kWrap = 5;
SkScalar x0 = 0;
SkScalar y0 = 0;
SkScalar x = x0, y = y0;
for (size_t i = 0; i < std::size(gModes); i++) {
SkRect r;
r.setLTRB(x, y, x+w, y+h);
SkPaint p;
p.setStyle(SkPaint::kFill_Style);
p.setShader(s);
canvas->drawRect(r, p);
r.inset(-SK_ScalarHalf, -SK_ScalarHalf);
p.setStyle(SkPaint::kStroke_Style);
p.setShader(nullptr);
canvas->drawRect(r, p);
{
SkAutoCanvasRestore arc(canvas, true);
canvas->clipRect(r);
textP.setBlendMode(gModes[i]);
const char* text = ToolUtils::emoji_sample_text();
SkUnichar unichar = SkUTF::NextUTF8(&text, text + strlen(text));
SkASSERT(unichar >= 0);
canvas->drawSimpleText(&unichar, 4, SkTextEncoding::kUTF32,
x+ w/10.f, y + 7.f*h/8.f, textFont, textP);
}
#if 1
const char* label = SkBlendMode_Name(gModes[i]);
SkTextUtils::DrawString(canvas, label, x + w/2, y - labelFont.getSize()/2,
labelFont, SkPaint(), SkTextUtils::kCenter_Align);
#endif
x += w + SkIntToScalar(10);
if ((i % kWrap) == kWrap - 1) {
x = x0;
y += h + SkIntToScalar(30);
}
}
}
private:
SkBitmap fBG;
sk_sp<SkTypeface> fColorType;
using INHERITED = GM;
};
} // namespace
DEF_GM( return new ColorEmojiBlendModesGM; )