git.maemo.org Git - jamaendo/blob - jamaui/songposition.py

   1 import logging
   2 import gtk
   3 import cairo
   4
   5 log = logging.getLogger(__name__)
   6
   7 # shows the current song position (looking a bit nicer than a default widget, hopefully)
   8 class SongPosition(gtk.DrawingArea):
   9     WIDTH = 8.0
  10     HEIGHT = 8.0
  11
  12     def __init__(self):
  13         gtk.DrawingArea.__init__(self)
  14         self.connect('expose-event', self.on_expose)
  15         self.set_size_request(24, 8)
  16         self.pos = 0.0
  17
  18         orange0 = self.hex_to_flt(0xec, 0xac, 0x1f)
  19         orange1 = self.hex_to_flt(0xea, 0x86, 0x1d, 0.25)
  20         purple0 = self.hex_to_flt(0x81, 0x3e, 0x82)
  21         purple1 = self.hex_to_flt(0x56, 0x2d, 0x5a, 0.25)
  22
  23         lightclr = cairo.LinearGradient(0.0, 0.0, 0.0, self.HEIGHT)
  24         lightclr.add_color_stop_rgba(0.0, *purple1)
  25         lightclr.add_color_stop_rgba(1.0, *purple0)
  26
  27         darkclr = cairo.LinearGradient(0.0, 0.0, 0.0, self.HEIGHT)
  28         darkclr.add_color_stop_rgba(0.0, 0.0, 0.0, 0.0, 0.0)
  29         darkclr.add_color_stop_rgba(1.0, 0.25, 0.25, 0.25, 1.0)
  30
  31         markerclr = cairo.LinearGradient(0.0, 0.0, 0.0, self.HEIGHT)
  32         markerclr.add_color_stop_rgba(0.0, *orange1)
  33         markerclr.add_color_stop_rgba(0.5, *orange0)
  34         markerclr.add_color_stop_rgba(1.0, *orange0)
  35
  36         self.lightclr = lightclr
  37         self.darkclr = darkclr
  38         self.markerclr = markerclr
  39
  40     def on_expose(self, widget, event):
  41         context = self.window.cairo_create()
  42         context.rectangle(event.area.x, event.area.y,
  43             event.area.width, event.area.height)
  44         context.clip()
  45         self.draw(context)
  46         return True
  47
  48     #ecac1f - light orange
  49     #ea861d - dark orange
  50
  51     #813e82 - light purple
  52     #562d5a - dark purple
  53
  54     def hex_to_flt(self, r, g, b, a = 255.0):
  55         return float(r)/255.0, float(g)/255.0, float(b)/255.0, float(a)/255.0
  56
  57     def draw(self, context):
  58         rect = self.get_allocation()
  59
  60
  61         #context.set_source_rgb(1.0, 0.5, 0.0)
  62         lowx = rect.width*self.pos - self.WIDTH*0.5
  63         hix = rect.width*self.pos + self.WIDTH*0.5
  64
  65         if lowx < 0.0:
  66             lowx = 0.0
  67             hix = self.WIDTH
  68         elif hix > rect.width:
  69             lowx = rect.width - self.WIDTH
  70             hix = rect.width
  71
  72         if lowx > 0.01:
  73             context.rectangle(0, 0, lowx, rect.height)
  74             context.set_source(self.lightclr)
  75             context.fill()
  76
  77         if hix < rect.width-0.01:
  78             context.rectangle(hix, 0, rect.width-hix, rect.height)
  79             context.set_source(self.darkclr)
  80             context.fill()
  81
  82         context.rectangle(lowx, 0, self.WIDTH, rect.height)
  83         context.set_source(self.markerclr)
  84         context.fill()
  85
  86     def set_position(self, pos):
  87         assert 0 <= pos <= 1
  88         self.pos = pos
  89         self.invalidate()
  90
  91     def invalidate(self):
  92         self.queue_draw()