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/*
* 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.h"
#include "sk_tool_utils.h"
#include "SkBitmap.h"
#include "SkGradientShader.h"
#include "SkShader.h"
#include "SkUtils.h"
namespace skiagm {
static uint16_t gData[] = { 0xFFFF, 0xCCCF, 0xCCCF, 0xFFFF };
class ColorEmojiBlendModesGM : public 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, SK_ARRAY_COUNT(colors),
0, &local));
sk_sp<SkTypeface> orig(sk_tool_utils::create_portable_typeface("serif",
SkFontStyle::FromOldStyle(SkTypeface::kBold)));
if (nullptr == orig) {
orig = SkTypeface::MakeDefault();
}
fColorType = sk_tool_utils::emoji_typeface();
fBG.installPixels(SkImageInfo::Make(2, 2, kARGB_4444_SkColorType,
kOpaque_SkAlphaType), gData, 4);
}
virtual SkString onShortName() override {
SkString name("coloremoji_blendmodes");
name.append(sk_tool_utils::platform_os_emoji());
return name;
}
virtual SkISize onISize() override {
return SkISize::Make(400, 640);
}
virtual 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 = SkShader::MakeBitmapShader(fBG, SkShader::kRepeat_TileMode,
SkShader::kRepeat_TileMode, &m);
SkPaint labelP;
labelP.setAntiAlias(true);
sk_tool_utils::set_portable_typeface(&labelP);
labelP.setTextAlign(SkPaint::kCenter_Align);
SkPaint textP;
textP.setAntiAlias(true);
textP.setTypeface(fColorType);
textP.setTextSize(SkIntToScalar(70));
const int W = 5;
SkScalar x0 = 0;
SkScalar y0 = 0;
SkScalar x = x0, y = y0;
for (size_t i = 0; i < SK_ARRAY_COUNT(gModes); i++) {
SkRect r;
r.set(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]);
textP.setTextEncoding(SkPaint::kUTF32_TextEncoding);
const char* text = sk_tool_utils::emoji_sample_text();
SkUnichar unichar = SkUTF8_ToUnichar(text);
canvas->drawText(&unichar, 4, x+ w/10.f, y + 7.f*h/8.f, textP);
}
#if 1
const char* label = SkBlendMode_Name(gModes[i]);
canvas->drawString(label, x + w/2, y - labelP.getTextSize()/2, labelP);
#endif
x += w + SkIntToScalar(10);
if ((i % W) == W - 1) {
x = x0;
y += h + SkIntToScalar(30);
}
}
}
private:
SkBitmap fBG;
sk_sp<SkTypeface> fColorType;
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static GM* MyFactory(void*) { return new ColorEmojiBlendModesGM; }
static GMRegistry reg(MyFactory);
}
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