skia2/tools/skhello.cpp
caryclark@google.com 5987f58036 build iOS with 'make all'
This builds all skia tests by treating iOS tools
as executable applications. A few warnings were
fixed as well.

Removed old trace draw code and remnants.
Review URL: https://codereview.appspot.com/6597063

git-svn-id: http://skia.googlecode.com/svn/trunk@5776 2bbb7eff-a529-9590-31e7-b0007b416f81
2012-10-02 18:33:14 +00:00

78 lines
2.2 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 "SkGraphics.h"
#include "SkImageEncoder.h"
#include "SkString.h"
static void show_help() {
SkDebugf("usage: skhello [-o out-dir] [-t 'hello']\n default output: skhello.png\n");
}
int tool_main(int argc, char** argv);
int tool_main(int argc, char** argv) {
SkAutoGraphics ag;
SkString path("skhello.png");
SkString text("Hello");
for (int i = 1; i < argc; i++) {
if (!strcmp(argv[i], "--help")) {
show_help();
return 0;
}
if (!strcmp(argv[i], "-o")) {
if (i == argc-1) {
SkDebugf("ERROR: -o needs a following filename\n");
return -1;
}
path.set(argv[i+1]);
i += 1; // skip the out dir name
} else if (!strcmp(argv[i], "-t")) {
if (i == argc-1) {
SkDebugf("ERROR: -t needs a following string\n");
return -1;
}
text.set(argv[i+1]);
i += 1; // skip the text string
}
}
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextSize(SkIntToScalar(30));
SkScalar width = paint.measureText(text.c_str(), text.size());
SkScalar spacing = paint.getFontSpacing();
int w = SkScalarRound(width) + 30;
int h = SkScalarRound(spacing) + 30;
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, w, h);
bitmap.allocPixels();
SkCanvas canvas(bitmap);
canvas.drawColor(SK_ColorWHITE);
paint.setTextAlign(SkPaint::kCenter_Align);
canvas.drawText(text.c_str(), text.size(),
SkIntToScalar(w)/2, SkIntToScalar(h)*2/3,
paint);
bool success = SkImageEncoder::EncodeFile(path.c_str(), bitmap,
SkImageEncoder::kPNG_Type, 100);
if (!success) {
SkDebugf("--- failed to write %s\n", path.c_str());
}
return !success;
}
#if !defined SK_BUILD_FOR_IOS
int main(int argc, char * const argv[]) {
return tool_main(argc, (char**) argv);
}
#endif