def __init__(self, logger=None, rgbmap=None, settings=None):
ImageView.__init__(self,
logger=logger,
rgbmap=rgbmap,
settings=settings)
imgwin = Gtk.DrawingArea()
imgwin.connect("draw", self.draw_event)
imgwin.connect("configure-event", self.configure_event)
imgwin.set_events(Gdk.EventMask.EXPOSURE_MASK)
# prevents some flickering
imgwin.set_double_buffered(True)
imgwin.set_app_paintable(True)
# prevents extra redraws, because we manually redraw on a size
# change
imgwin.set_redraw_on_allocate(False)
self.imgwin = imgwin
self.imgwin.show_all()
# see reschedule_redraw() method
self._defer_task = GtkHelp.Timer()
self._defer_task.add_callback('expired',
lambda timer: self.delayed_redraw())
self.msgtask = GtkHelp.Timer()
self.msgtask.add_callback('expired',
lambda timer: self.onscreen_message(None))
def __init__(self, logger=None, rgbmap=None, settings=None):
ImageView.__init__(self, logger=logger,
rgbmap=rgbmap,
settings=settings)
imgwin = Gtk.DrawingArea()
imgwin.connect("draw", self.draw_event)
imgwin.connect("configure-event", self.configure_event)
imgwin.set_events(Gdk.EventMask.EXPOSURE_MASK)
# prevents some flickering
imgwin.set_double_buffered(True)
imgwin.set_app_paintable(True)
# prevents extra redraws, because we manually redraw on a size
# change
imgwin.set_redraw_on_allocate(False)
self.imgwin = imgwin
self.imgwin.show_all()
# cursors
self.cursor = {}
# see reschedule_redraw() method
self._defer_task = GtkHelp.Timer(0.0,
lambda timer: self.delayed_redraw())
self.msgtask = GtkHelp.Timer(0.0,
lambda timer: self.onscreen_message(None))
def convert(filepath, outfilepath):
"""Convert FITS image to PDF."""
logger = logging.getLogger("example1")
logger.setLevel(logging.INFO)
fmt = logging.Formatter(STD_FORMAT)
stderrHdlr = logging.StreamHandler()
stderrHdlr.setFormatter(fmt)
logger.addHandler(stderrHdlr)
fi = ImageViewCairo(logger)
fi.configure(500, 1000)
# Load fits file
image = AstroImage(logger=logger)
image.load_file(filepath)
# Make any adjustments to the image that we want
fi.set_bg(1.0, 1.0, 1.0)
fi.set_image(image)
fi.auto_levels()
fi.zoom_fit()
fi.center_image()
ht_pts = 11.0 / point_in
wd_pts = 8.5 / point_in
off_x, off_y = 0, 0
out_f = open(outfilepath, 'w')
surface = cairo.PDFSurface(out_f, wd_pts, ht_pts)
# set pixels per inch
surface.set_fallback_resolution(300, 300)
surface.set_device_offset(off_x, off_y)
try:
fi.save_image_as_surface(surface)
surface.show_page()
surface.flush()
surface.finish()
finally:
out_f.close()
