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 = 32.0
  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(0.5, *purple0)
  26         lightclr.add_color_stop_rgba(0.501, *purple1)
  27         lightclr.add_color_stop_rgba(1.0, *purple1)
  28
  29         darkclr = cairo.LinearGradient(0.0, 0.0, 0.0, self.HEIGHT)
  30         darkclr.add_color_stop_rgba(0.0, 0.0, 0.0, 0.0, 0.0)
  31         darkclr.add_color_stop_rgba(1.0, 0.25, 0.25, 0.25, 1.0)
  32
  33         markerclr = cairo.LinearGradient(0.0, 0.0, 0.0, self.HEIGHT)
  34         markerclr.add_color_stop_rgba(0.0, 1.0, 1.0, 1.0, 0.0)
  35         markerclr.add_color_stop_rgba(0.5, 1.0, 1.0, 1.0, 0.75)
  36         markerclr.add_color_stop_rgba(1.0, 1.0, 1.0, 1.0, 1.0)
  37
  38         self.lightclr = lightclr
  39         self.darkclr = darkclr
  40         self.markerclr = markerclr
  41
  42     def on_expose(self, widget, event):
  43         context = self.window.cairo_create()
  44         context.rectangle(event.area.x, event.area.y,
  45             event.area.width, event.area.height)
  46         context.clip()
  47         self.draw(context)
  48         return True
  49
  50     #ecac1f - light orange
  51     #ea861d - dark orange
  52
  53     #813e82 - light purple
  54     #562d5a - dark purple
  55
  56     def hex_to_flt(self, r, g, b, a = 255.0):
  57         return float(r)/255.0, float(g)/255.0, float(b)/255.0, float(a)/255.0
  58
  59     def draw(self, context):
  60         rect = self.get_allocation()
  61
  62
  63         #context.set_source_rgb(1.0, 0.5, 0.0)
  64         lowx = rect.width*self.pos - self.WIDTH*0.5
  65         hix = rect.width*self.pos + self.WIDTH*0.5
  66
  67         if lowx < 0.0:
  68             lowx = 0.0
  69             hix = self.WIDTH
  70         elif hix > rect.width:
  71             lowx = rect.width - self.WIDTH
  72             hix = rect.width
  73
  74         if lowx > 0.01:
  75             context.rectangle(0, 0, lowx, rect.height)
  76             context.set_source(self.lightclr)
  77             context.fill()
  78
  79         if hix < rect.width-0.01:
  80             context.rectangle(hix, 0, rect.width-hix, rect.height)
  81             context.set_source(self.darkclr)
  82             context.fill()
  83
  84         context.rectangle(lowx, 0, self.WIDTH, rect.height)
  85         context.set_source(self.markerclr)
  86         context.fill()
  87
  88     def set_position(self, pos):
  89         if pos < 0.0:
  90             pos = 0.0
  91         elif pos > 1.0:
  92             pos = 1.0
  93         self.pos = pos
  94         self.invalidate()
  95
  96     def invalidate(self):
  97         self.queue_draw()