12345678910111213141516171819202122232425262728293031323334353637383940414243444546 |
- # This file is part of pybootchartgui.
- # pybootchartgui is free software: you can redistribute it and/or modify
- # it under the terms of the GNU General Public License as published by
- # the Free Software Foundation, either version 3 of the License, or
- # (at your option) any later version.
- # pybootchartgui is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
- # You should have received a copy of the GNU General Public License
- # along with pybootchartgui. If not, see <http://www.gnu.org/licenses/>.
- import cairo
- from . import draw
- from .draw import RenderOptions
- def render(writer, trace, app_options, filename):
- handlers = {
- "png": (lambda w, h: cairo.ImageSurface(cairo.FORMAT_ARGB32, w, h), \
- lambda sfc: sfc.write_to_png(filename)),
- "pdf": (lambda w, h: cairo.PDFSurface(filename, w, h), lambda sfc: 0),
- "svg": (lambda w, h: cairo.SVGSurface(filename, w, h), lambda sfc: 0)
- }
- if app_options.format is None:
- fmt = filename.rsplit('.', 1)[1]
- else:
- fmt = app_options.format
- if not (fmt in handlers):
- writer.error ("Unknown format '%s'." % fmt)
- return 10
- make_surface, write_surface = handlers[fmt]
- options = RenderOptions (app_options)
- (w, h) = draw.extents (options, 1.0, trace)
- w = max (w, draw.MIN_IMG_W)
- surface = make_surface (w, h)
- ctx = cairo.Context (surface)
- draw.render (ctx, options, 1.0, trace)
- write_surface (surface)
- writer.status ("bootchart written to '%s'" % filename)
|