usr/lib/hildon-desktop/raemote.py

   1 #!/usr/bin/python
   2 # -*- coding: utf-8 -*-
   3 # RæMote for Maemo
   4 # Copyright (c) 2010-03-08 Thomas Perl <thpinfo.com/about>
   5 # Licensed under the terms of the GNU GPL v3 or later
   6
   7 import os
   8 import subprocess
   9 import gtk
  10 import gobject
  11 import cairo
  12 import hildondesktop
  13 import osso
  14
  15 def restart_lirc():
  16     subprocess.Popen(['sudo', '/etc/init.d/lirc', 'restart'])
  17
  18 def send_ir(remote, code):
  19     subprocess.Popen(['sudo', 'irsend', 'SEND_ONCE', remote, code])
  20
  21 class Rectangle(object):
  22     def __init__(self, action, x1, y1, x2, y2):
  23         self.action = action
  24         self.x1 = int(x1)
  25         self.y1 = int(y1)
  26         self.x2 = int(x2)
  27         self.y2 = int(y2)
  28
  29     def has_point(self, x, y):
  30         return x >= self.x1 and x <= self.x2 and y >= self.y1 and y <= self.y2
  31
  32 class RaeMote(hildondesktop.HomePluginItem):
  33     DEBUG_RECTANGLES = False
  34     BASEDIR = '/opt/raemote/'
  35     REMOTE = 'apple'
  36
  37     def __init__(self):
  38         hildondesktop.HomePluginItem.__init__(self)
  39
  40         self.set_settings(True)
  41         self.connect('show-settings', self.on_settings)
  42
  43         name_file = os.path.join(self.BASEDIR, self.REMOTE, 'name')
  44         rect_file = os.path.join(self.BASEDIR, self.REMOTE, 'rects')
  45         image_file = os.path.join(self.BASEDIR, self.REMOTE, 'bg.png')
  46
  47         self.remote_name = open(name_file).read().strip()
  48         self.rectangles = self.load_rectangles(rect_file)
  49         self.image = cairo.ImageSurface.create_from_png(image_file)
  50
  51         screen = self.get_screen()
  52         colormap = screen.get_rgba_colormap()
  53         self.set_colormap(colormap)
  54
  55         self.overlay = None
  56         self._clear_overlay_source_id = None
  57         self.set_size_request(self.image.get_width(),
  58                               self.image.get_height())
  59
  60         self.connect('expose-event', self.on_expose_event)
  61         self.connect('button-press-event', self.on_button_press)
  62         self.connect('button-release-event', self.on_button_release)
  63         self.set_events(gtk.gdk.BUTTON_PRESS_MASK | \
  64                         gtk.gdk.BUTTON_RELEASE_MASK)
  65
  66         # Make sure lircd is running
  67         restart_lirc()
  68
  69     def load_rectangles(self, filename):
  70         result = []
  71         for rect_def in open(filename).read().strip().splitlines():
  72             if rect_def and not rect_def.startswith('#'):
  73                 result.append(Rectangle(*(rect_def.split())))
  74         return result
  75
  76     def load_overlay(self, action):
  77         overlay_file = os.path.join(self.BASEDIR, self.REMOTE, action+'.png')
  78         return cairo.ImageSurface.create_from_png(overlay_file)
  79
  80     def on_settings(self, widget):
  81         dialog = gtk.Dialog()
  82         dialog.set_title('About RaeMote')
  83         dialog.add_button('Visit website', 1)
  84         dialog.add_button('Report bug', 2)
  85         dialog.add_button('Donate', 3)
  86         dialog.vbox.add(gtk.Label('Version 1.1 (2010-03-18)'))
  87         dialog.vbox.add(gtk.Label('Copyright (c) 2010 Thomas Perl <http://thpinfo.com>'))
  88         dialog.show_all()
  89         result = dialog.run()
  90         dialog.destroy()
  91         if result >= 1 and result <= 3:
  92             ctx = osso.Context('com.thpinfo.raemote', '1.0', False)
  93             rpc = osso.Rpc(ctx)
  94             if result == 1:
  95                 rpc.rpc_run_with_defaults('osso_browser', 'open_new_window',
  96                         ('http://thpinfo.com/2010/raemote',))
  97             elif result == 2:
  98                 rpc.rpc_run_with_defaults('osso_browser', 'open_new_window',
  99                         ('http://talk.maemo.org/showthread.php?t=46870',))
 100             elif result == 3:
 101                 rpc.rpc_run_with_defaults('osso_browser', 'open_new_window',
 102                         ('http://thpinfo.com/2010/raemote/donate',))
 103
 104     def on_button_press(self, widget, event):
 105         if self.overlay is None:
 106             for rectangle in self.rectangles:
 107                 if rectangle.has_point(event.x, event.y):
 108                     self.overlay = self.load_overlay(rectangle.action)
 109                     self.queue_draw()
 110                     send_ir(self.remote_name, rectangle.action)
 111
 112                     # Remove the overlay after 100ms
 113                     self._clear_overlay_source_id = \
 114                             gobject.timeout_add(100, self.on_button_release)
 115                     return
 116
 117     def on_button_release(self, widget=None, event=None):
 118         if self._clear_overlay_source_id is not None:
 119             gobject.source_remove(self._clear_overlay_source_id)
 120             self.overlay = None
 121             self.queue_draw()
 122             self._clear_overlay_source_id = None
 123
 124         return False
 125
 126     def on_expose_event(self, widget, event):
 127         cr = widget.window.cairo_create()
 128         cr.set_operator(cairo.OPERATOR_SOURCE)
 129         cr.rectangle(0, 0, self.image.get_width(),
 130                            self.image.get_height())
 131         cr.set_source_rgba(0, 0, 0, 0)
 132         cr.fill()
 133
 134         cr.rectangle(0, 0, self.image.get_width(),
 135                            self.image.get_height())
 136         cr.set_source_surface(self.image)
 137         cr.fill()
 138
 139         cr.set_operator(cairo.OPERATOR_OVER)
 140         if self.DEBUG_RECTANGLES:
 141             for rectangle in self.rectangles:
 142                 cr.set_source_rgba(1, 0, 1, .5)
 143                 cr.rectangle(rectangle.x1, rectangle.y1,
 144                              rectangle.x2-rectangle.x1,
 145                              rectangle.y2-rectangle.y1)
 146                 cr.fill()
 147
 148         if self.overlay is not None:
 149             cr.set_operator(cairo.OPERATOR_OVER)
 150             cr.rectangle(0, 0, self.overlay.get_width(),
 151                                self.overlay.get_height())
 152             cr.set_source_surface(self.overlay)
 153             cr.fill()
 154
 155         return True
 156
 157 hd_plugin_type = RaeMote
 158
 159 if __name__ == '__main__':
 160     gobject.type_register(hd_plugin_type)
 161     obj = gobject.new(hd_plugin_type, \
 162             plugin_id=hd_plugin_type.__class__.__name__)
 163     obj.show_all()
 164     gtk.main()
 165