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/*
* Copyright 2013 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 "Resources.h"
#include "SkCanvas.h"
#include "SkGradientShader.h"
#include "SkStream.h"
#include "SkTextBlob.h"
#include "SkTypeface.h"
namespace skiagm {
static void draw_blob(SkCanvas* canvas, const SkTextBlob* blob, const SkPaint& skPaint,
const SkRect& clipRect) {
SkPaint clipHairline;
clipHairline.setColor(SK_ColorWHITE);
clipHairline.setStyle(SkPaint::kStroke_Style);
SkPaint paint(skPaint);
canvas->save();
canvas->drawRect(clipRect, clipHairline);
paint.setAlpha(0x20);
canvas->drawTextBlob(blob, 0, 0, paint);
canvas->clipRect(clipRect);
paint.setAlpha(0xFF);
canvas->drawTextBlob(blob, 0, 0, paint);
canvas->restore();
}
class MixedTextBlobsGM : public GM {
public:
MixedTextBlobsGM() { }
protected:
void onOnceBeforeDraw() override {
#ifndef SK_BUILD_FOR_MAC
fEmojiTypeface.reset(GetResourceAsTypeface("/fonts/Funkster.ttf"));
fEmojiText = "Emoji!!!";
#else
fEmojiTypeface.reset(SkTypeface::CreateFromName("Apple Color Emoji", SkTypeface::kNormal));
fEmojiText = "\xF0\x9F\x92\xB0" "\xF0\x9F\x8F\xA1" "\xF0\x9F\x8E\x85" // 💰🏡🎅
"\xF0\x9F\x8D\xAA" "\xF0\x9F\x8D\x95" "\xF0\x9F\x9A\x80"; // 🍪🍕🚀
#endif
fReallyBigATypeface.reset(GetResourceAsTypeface("/fonts/ReallyBigA.ttf"));
SkTextBlobBuilder builder;
// make textblob
// Text so large we draw as paths
SkPaint paint;
paint.setTextSize(385);
const char* text = "O";
sk_tool_utils::set_portable_typeface(&paint);
SkRect bounds;
paint.measureText(text, strlen(text), &bounds);
SkScalar yOffset = bounds.height();
sk_tool_utils::add_to_text_blob(&builder, text, paint, 10, yOffset);
SkScalar corruptedAx = bounds.width();
SkScalar corruptedAy = yOffset;
const SkScalar boundsHalfWidth = bounds.width() * SK_ScalarHalf;
const SkScalar boundsHalfHeight = bounds.height() * SK_ScalarHalf;
SkScalar xOffset = boundsHalfWidth;
yOffset = boundsHalfHeight;
// LCD
paint.setTextSize(32);
text = "LCD!!!!!";
paint.setSubpixelText(true);
paint.setLCDRenderText(true);
paint.measureText(text, strlen(text), &bounds);
sk_tool_utils::add_to_text_blob(&builder, text, paint, xOffset - bounds.width() * 0.25f,
yOffset - bounds.height() * 0.5f);
yOffset += bounds.height();
// color emoji
paint.setSubpixelText(false);
paint.setLCDRenderText(false);
paint.setTypeface(fEmojiTypeface);
text = fEmojiText;
paint.measureText(text, strlen(text), &bounds);
sk_tool_utils::add_to_text_blob(&builder, text, paint, xOffset - bounds.width() * 0.3f,
yOffset);
// Corrupted font
paint.setTextSize(12);
text = "aA";
paint.setTypeface(fReallyBigATypeface);
sk_tool_utils::add_to_text_blob(&builder, text, paint, corruptedAx, corruptedAy);
fBlob.reset(builder.build());
}
SkString onShortName() override {
return SkString("mixedtextblobs");
}
SkISize onISize() override {
return SkISize::Make(kWidth, kHeight);
}
void onDraw(SkCanvas* canvas) override {
canvas->drawColor(SK_ColorGRAY);
SkPaint paint;
// setup work needed to draw text with different clips
paint.setColor(SK_ColorBLACK);
canvas->translate(10, 40);
paint.setTextSize(40);
// compute the bounds of the text and setup some clips
SkRect bounds = fBlob->bounds();
const SkScalar boundsHalfWidth = bounds.width() * SK_ScalarHalf;
const SkScalar boundsHalfHeight = bounds.height() * SK_ScalarHalf;
const SkScalar boundsQuarterWidth = boundsHalfWidth * SK_ScalarHalf;
const SkScalar boundsQuarterHeight = boundsHalfHeight * SK_ScalarHalf;
SkRect upperLeftClip = SkRect::MakeXYWH(bounds.left(), bounds.top(),
boundsHalfWidth, boundsHalfHeight);
SkRect lowerRightClip = SkRect::MakeXYWH(bounds.centerX(), bounds.centerY(),
boundsHalfWidth, boundsHalfHeight);
SkRect interiorClip = bounds;
interiorClip.inset(boundsQuarterWidth, boundsQuarterHeight);
const SkRect clipRects[] = { bounds, upperLeftClip, lowerRightClip, interiorClip};
size_t count = sizeof(clipRects) / sizeof(SkRect);
for (size_t x = 0; x < count; ++x) {
draw_blob(canvas, fBlob, paint, clipRects[x]);
if (x == (count >> 1) - 1) {
canvas->translate(SkScalarFloorToScalar(bounds.width() + SkIntToScalar(25)),
-(x * SkScalarFloorToScalar(bounds.height() +
SkIntToScalar(25))));
} else {
canvas->translate(0, SkScalarFloorToScalar(bounds.height() + SkIntToScalar(25)));
}
}
}
private:
SkAutoTUnref<SkTypeface> fEmojiTypeface;
SkAutoTUnref<SkTypeface> fReallyBigATypeface;
const char* fEmojiText;
SkAutoTUnref<const SkTextBlob> fBlob;
static const int kWidth = 1250;
static const int kHeight = 700;
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM( return SkNEW(MixedTextBlobsGM); )
}
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