skia2/tools/skhello.cpp

69 lines
1.9 KiB
C++

/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkCanvas.h"
#include "SkCommandLineFlags.h"
#include "SkData.h"
#include "SkGraphics.h"
#include "SkSurface.h"
#include "SkImage.h"
#include "SkStream.h"
#include "SkString.h"
DEFINE_string2(outFile, o, "skhello.png", "The filename to write the image.");
DEFINE_string2(text, t, "Hello", "The string to write.");
int tool_main(int argc, char** argv);
int tool_main(int argc, char** argv) {
SkCommandLineFlags::SetUsage("");
SkCommandLineFlags::Parse(argc, argv);
SkAutoGraphics ag;
SkString path("skhello.png");
SkString text("Hello");
if (!FLAGS_outFile.isEmpty()) {
path.set(FLAGS_outFile[0]);
}
if (!FLAGS_text.isEmpty()) {
text.set(FLAGS_text[0]);
}
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextSize(SkIntToScalar(30));
paint.setTextAlign(SkPaint::kCenter_Align);
SkScalar width = paint.measureText(text.c_str(), text.size());
SkScalar spacing = paint.getFontSpacing();
int w = SkScalarRound(width) + 30;
int h = SkScalarRound(spacing) + 30;
SkImage::Info info = {
w, h, SkImage::kPMColor_ColorType, SkImage::kPremul_AlphaType
};
SkAutoTUnref<SkSurface> surface(SkSurface::NewRaster(info));
SkCanvas* canvas = surface->getCanvas();
canvas->drawColor(SK_ColorWHITE);
canvas->drawText(text.c_str(), text.size(),
SkIntToScalar(w)/2, SkIntToScalar(h)*2/3,
paint);
SkAutoTUnref<SkImage> image(surface->newImageSnapshot());
SkAutoDataUnref data(image->encode());
SkFILEWStream stream(path.c_str());
return stream.write(data->data(), data->size());
}
#if !defined SK_BUILD_FOR_IOS
int main(int argc, char * const argv[]) {
return tool_main(argc, (char**) argv);
}
#endif