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Convert an svg to a png using Google Chrome
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| #!/usr/bin/env python3 | |
| import argparse | |
| import tempfile | |
| from pathlib import Path | |
| import subprocess | |
| import os | |
| import platform | |
| scale = 1.0 | |
| # Account for scaling factor on macOS (requires PyObjC to work) | |
| # Other solution: Set Google Chrome to run in "Low Resolution" mode | |
| if platform.system() == 'Darwin': | |
| try: | |
| from AppKit import NSScreen | |
| scale = NSScreen.mainScreen().backingScaleFactor() | |
| except: | |
| scale = 1.0 | |
| parser = argparse.ArgumentParser(usage='svg_2_png.py [-h] [-W width] [-H height] [-o output] <input>') | |
| parser.add_argument("-W", "--width", type=int, help="Width (default to 512)", default=512) | |
| parser.add_argument("-H", "--height", type=int, help="Height (default to 512)", default=512) | |
| parser.add_argument("-o", "--output", help="Output file (default to current dir)") | |
| parser.add_argument("input", help="svg file to convert") | |
| args = parser.parse_args() | |
| input = Path(os.path.realpath(args.input)) | |
| output = Path(os.path.realpath(args.output)) if args.output else input.parent / f"{input.stem}.png" | |
| def renderIcon(tmpDir, width, height, iSvg, oPng): | |
| width = int(width / scale) | |
| height = int(height / scale) | |
| html = f"""<!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Title</title> | |
| </head> | |
| <body style="margin:0;overflow:hidden"> | |
| <img style="padding; margin:0" src="{iSvg}" width="{width}" height="{height}"></img> | |
| </body> | |
| </html> | |
| """ | |
| htmlFile = tmpDir / "icon.html" | |
| with htmlFile.open("w") as f: | |
| f.write(html) | |
| command = ["/Applications/Google Chrome.app/Contents/MacOS/Google Chrome", | |
| "--headless", | |
| f"--screenshot={oPng}", | |
| f"--window-size={width},{height}", | |
| "--default-background-color=0", | |
| str(htmlFile) | |
| ] | |
| subprocess.run(command) | |
| with tempfile.TemporaryDirectory() as tmpDir: | |
| tmpDir = Path(tmpDir) | |
| renderIcon(tmpDir, args.width, args.height, input, output) |
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