help_box.py

   1 import gtk
   2
   3 from dialog import Dialog
   4
   5 class HelpBox:
   6         box = None
   7         title = None
   8         sections = None
   9
  10         def __init__(self, title, *sections):
  11                 self.title = title
  12                 self.sections = sections
  13
  14         def display(self):
  15                 if self.box:
  16                         self.box.destroy()
  17                         assert not self.box
  18
  19                 self.box = box = Dialog()
  20                 box.set_title(self.title)
  21                 box.set_has_separator(False)
  22
  23                 swin = gtk.ScrolledWindow(None, None)
  24                 swin.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_ALWAYS)
  25                 swin.set_shadow_type(gtk.SHADOW_IN)
  26                 swin.set_border_width(2)
  27                 box.vbox.pack_start(swin, True, True)
  28
  29                 text = gtk.TextView()
  30                 text.set_left_margin(4)
  31                 text.set_right_margin(4)
  32                 text.set_wrap_mode(gtk.WRAP_WORD)
  33                 text.set_editable(False)
  34                 text.set_cursor_visible(False)
  35                 model = text.get_buffer()
  36                 titer = model.get_start_iter()
  37                 heading_style = model.create_tag(underline = True, scale = 1.2)
  38
  39                 first = True
  40                 for title, body in self.sections:
  41                         if first:
  42                                 first = False
  43                         else:
  44                                 model.insert(titer, '\n\n')
  45                         model.insert_with_tags(titer, title, heading_style)
  46                         model.insert(titer, '\n' + body.strip())
  47                 swin.add(text)
  48
  49                 swin.show_all()
  50
  51                 box.add_button(gtk.STOCK_CLOSE, gtk.RESPONSE_CANCEL)
  52                 box.connect('response', lambda box, resp: box.destroy())
  53
  54                 box.set_default_response(gtk.RESPONSE_CANCEL)
  55
  56                 def destroyed(box):
  57                         self.box = None
  58                 box.connect('destroy', destroyed)
  59
  60                 box.set_position(gtk.WIN_POS_CENTER)
  61                 box.set_default_size(gtk.gdk.screen_width() / 4,
  62                                       gtk.gdk.screen_height() / 3)
  63                 box.show()