aosp12/external/skia/docs/examples/TextBlob_uniqueID.cpp

41 lines
1.8 KiB
C++

#if 0 // Disabled until updated to use current API.
// Copyright 2019 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "tools/fiddle/examples.h"
// HASH=6e12cceca981ddabc0fc18c380543f34
REG_FIDDLE(TextBlob_uniqueID, 256, 256, false, 0) {
void draw(SkCanvas* canvas) {
for (int index = 0; index < 2; ++index) {
SkTextBlobBuilder textBlobBuilder;
const char bunny[] = "/(^x^)\\";
const int len = sizeof(bunny) - 1;
uint16_t glyphs[len];
SkPaint paint;
paint.textToGlyphs(bunny, len, glyphs);
paint.setTextEncoding(SkTextEncoding::kGlyphID);
paint.setTextScaleX(0.5);
SkFont font;
font.setScaleX(0.5);
int runs[] = { 3, 1, 3 };
SkPoint textPos = { 20, 50 };
int glyphIndex = 0;
for (auto runLen : runs) {
font.setSize(1 == runLen ? 20 : 50);
paint.setTextSize(1 == runLen ? 20 : 50);
const SkTextBlobBuilder::RunBuffer& run =
textBlobBuilder.allocRun(font, runLen, textPos.fX, textPos.fY);
memcpy(run.glyphs, &glyphs[glyphIndex], sizeof(glyphs[0]) * runLen);
textPos.fX += paint.measureText(&glyphs[glyphIndex], sizeof(glyphs[0]) * runLen, nullptr);
glyphIndex += runLen;
}
sk_sp<const SkTextBlob> blob = textBlobBuilder.make();
paint.reset();
canvas->drawTextBlob(blob.get(), 0, 0, paint);
std::string id = "unique ID:" + std::to_string(blob->uniqueID());
canvas->drawString(id.c_str(), 30, blob->bounds().fBottom + 15, paint);
canvas->translate(blob->bounds().fRight + 10, 0);
}
}
} // END FIDDLE
#endif // Disabled until updated to use current API.