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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 "SkBitmap.h"
#include "SkGradientShader.h"
#include "SkShader.h"
#include "../src/fonts/SkGScalerContext.h"
namespace skiagm {
static uint16_t gData[] = { 0xFFFF, 0xCCCF, 0xCCCF, 0xFFFF };
class ColorTypeXfermodeGM : public GM {
public:
const static int W = 64;
const static int H = 64;
ColorTypeXfermodeGM() {}
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_make_sp<SkGTypeface>(orig, paint);
fBG.installPixels(SkImageInfo::Make(2, 2, kARGB_4444_SkColorType,
kOpaque_SkAlphaType), gData, 4);
}
virtual SkString onShortName() override {
return SkString("colortype_xfermodes");
}
virtual SkISize onISize() override {
return SkISize::Make(400, 640);
}
virtual void onDraw(SkCanvas* canvas) override {
canvas->translate(SkIntToScalar(10), SkIntToScalar(20));
const struct {
SkBlendMode fMode;
const char* fLabel;
} gModes[] = {
{ SkBlendMode::kClear, "Clear" },
{ SkBlendMode::kSrc, "Src" },
{ SkBlendMode::kDst, "Dst" },
{ SkBlendMode::kSrcOver, "SrcOver" },
{ SkBlendMode::kDstOver, "DstOver" },
{ SkBlendMode::kSrcIn, "SrcIn" },
{ SkBlendMode::kDstIn, "DstIn" },
{ SkBlendMode::kSrcOut, "SrcOut" },
{ SkBlendMode::kDstOut, "DstOut" },
{ SkBlendMode::kSrcATop, "SrcATop" },
{ SkBlendMode::kDstATop, "DstATop" },
{ SkBlendMode::kXor, "Xor" },
{ SkBlendMode::kPlus, "Plus" },
{ SkBlendMode::kModulate, "Modulate" },
{ SkBlendMode::kScreen, "Screen" },
{ SkBlendMode::kOverlay, "Overlay" },
{ SkBlendMode::kDarken, "Darken" },
{ SkBlendMode::kLighten, "Lighten" },
{ SkBlendMode::kColorDodge, "ColorDodge" },
{ SkBlendMode::kColorBurn, "ColorBurn" },
{ SkBlendMode::kHardLight, "HardLight" },
{ SkBlendMode::kSoftLight, "SoftLight" },
{ SkBlendMode::kDifference, "Difference" },
{ SkBlendMode::kExclusion, "Exclusion" },
{ SkBlendMode::kMultiply, "Multiply" },
{ SkBlendMode::kHue, "Hue" },
{ SkBlendMode::kSaturation, "Saturation" },
{ SkBlendMode::kColor, "Color" },
{ SkBlendMode::kLuminosity, "Luminosity" },
};
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);
textP.setBlendMode(gModes[i].fMode);
canvas->drawText("H", 1, x+ w/10.f, y + 7.f*h/8.f, textP);
#if 1
canvas->drawText(gModes[i].fLabel, strlen(gModes[i].fLabel),
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 ColorTypeXfermodeGM; }
static GMRegistry reg(MyFactory);
}
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