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# Copyright (C) 2007, Eduardo Silva (edsiper@gmail.com).
#
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import gtk
import gobject
import cairo
COLOR_MODE_NORMAL = 0
COLOR_MODE_REVERSE = 1
class BoxGraphic(gtk.DrawingArea):
__gtype_name__ = 'ConsoleBoxGraphic'
__gproperties__ = {
'color-mode': (gobject.TYPE_INT, None, None, 0, 1, COLOR_MODE_NORMAL,
gobject.PARAM_READWRITE | gobject.PARAM_CONSTRUCT_ONLY)
}
_color_status_high = [0, 0, 0]
_color_status_medium = [0, 0, 0]
_color_status_low = [0, 0, 0]
_limit_high = 0
_limit_medium = 0
_limit_low = 0
def __init__(self, **kwargs):
gobject.GObject.__init__(self, **kwargs)
gtk.DrawingArea.__init__(self)
self.connect("expose-event", self.do_expose)
self.connect('size-allocate', self._change_size_cb)
def do_expose(self, widget, event):
context = widget.window.cairo_create()
context.rectangle(0, 0, self._width, self._height)
context.set_source_rgb (0,0,0)
context.fill_preserve()
context.stroke()
self._draw_content(context, self._percent)
def do_set_property(self, pspec, value):
if pspec.name == 'color-mode':
self._configure(mode=value)
else:
raise AssertionError
def set_capacity(self, percent):
self._percent = percent
self.queue_draw()
def _configure(self, mode):
# Normal mode configure the box as a battery
# full is good, empty is bad
if mode == COLOR_MODE_NORMAL:
self._color_status_high = [0, 1, 0]
self._color_status_medium = [1,1,0]
self._color_status_low = [1,0,0]
self._limit_high = 60
self._limit_medium = 10
# Reverse mode configure the box as a storage device
# full is bad, empty is good
elif mode == COLOR_MODE_REVERSE:
self._color_status_high = [1,0,0]
self._color_status_medium = [1,1,0]
self._color_status_low = [0, 1, 0]
self._limit_high = 85
self._limit_medium = 40
def _draw_content(self, context, percent):
usage_height = (percent*self._height)/100
context.rectangle(0, self._height - usage_height, self._width, self._height)
if self._percent > self._limit_high:
context.set_source_rgb(*self._color_status_high)
elif self._percent >= self._limit_medium and self._percent <= self._limit_high:
context.set_source_rgb(*self._color_status_medium)
elif self._percent < self._limit_medium:
context.set_source_rgb(*self._color_status_low)
context.fill_preserve()
def _change_size_cb(self, widget, allocation):
self._width = allocation.width
self._height = allocation.height
self.queue_draw()
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