зеркало из https://github.com/mozilla/moz-skia.git
78 строки
2.2 KiB
C++
78 строки
2.2 KiB
C++
/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkCanvas.h"
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#include "SkGraphics.h"
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#include "SkImageEncoder.h"
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#include "SkString.h"
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static void show_help() {
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SkDebugf("usage: skhello [-o out-dir] [-t 'hello']\n default output: skhello.png\n");
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}
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int tool_main(int argc, char** argv);
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int tool_main(int argc, char** argv) {
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SkAutoGraphics ag;
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SkString path("skhello.png");
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SkString text("Hello");
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for (int i = 1; i < argc; i++) {
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if (!strcmp(argv[i], "--help")) {
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show_help();
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return 0;
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}
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if (!strcmp(argv[i], "-o")) {
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if (i == argc-1) {
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SkDebugf("ERROR: -o needs a following filename\n");
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return -1;
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}
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path.set(argv[i+1]);
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i += 1; // skip the out dir name
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} else if (!strcmp(argv[i], "-t")) {
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if (i == argc-1) {
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SkDebugf("ERROR: -t needs a following string\n");
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return -1;
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}
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text.set(argv[i+1]);
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i += 1; // skip the text string
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}
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}
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setTextSize(SkIntToScalar(30));
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SkScalar width = paint.measureText(text.c_str(), text.size());
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SkScalar spacing = paint.getFontSpacing();
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int w = SkScalarRound(width) + 30;
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int h = SkScalarRound(spacing) + 30;
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SkBitmap bitmap;
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bitmap.setConfig(SkBitmap::kARGB_8888_Config, w, h);
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bitmap.allocPixels();
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SkCanvas canvas(bitmap);
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canvas.drawColor(SK_ColorWHITE);
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paint.setTextAlign(SkPaint::kCenter_Align);
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canvas.drawText(text.c_str(), text.size(),
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SkIntToScalar(w)/2, SkIntToScalar(h)*2/3,
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paint);
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bool success = SkImageEncoder::EncodeFile(path.c_str(), bitmap,
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SkImageEncoder::kPNG_Type, 100);
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if (!success) {
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SkDebugf("--- failed to write %s\n", path.c_str());
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}
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return !success;
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}
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#if !defined SK_BUILD_FOR_IOS
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int main(int argc, char * const argv[]) {
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return tool_main(argc, (char**) argv);
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}
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#endif
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