def _display_caption(self):
if self.config['caption_font']:
# Sweep buffer caption clean
#
adesklets.context_set_image(self._buffer_caption)
adesklets.context_set_color(0,0,0,0)
adesklets.image_fill_rectangle(0,0,
self._window_width,
self._caption_height)
if self._active in range(len(self.icons)) and \
len(self.icons[self._active][0])>0:
# Compute final text position
#
width, height = adesklets.get_text_size(
self.icons[self._active][0])
pos = self._position(self._active, -1, False)
x = (pos[0]+pos[2]/2)-width/2
if x+width>self._window_width: x=self._window_width-x
if x<0: x=0
# If turned on, performs the caption fade-in
#
if self.config['caption_fade_in']:
# Sweep window buffer space
#
adesklets.context_set_image(0)
adesklets.blend_image_onto_image(self._buffer_caption,1,
0,0,
self._window_width,
self._caption_height,
0,adesklets.echo('$y'),
self._window_width,
self._caption_height)
# Set variables and execute the fade in
#
adesklets.set('text',self.icons[self._active][0])
adesklets.set('x',x)
adesklets.set('width',width)
adesklets.set('height',height)
adesklets.play(*self._fadein)
# Force final result, regardless the previous state
#
adesklets.context_set_image(self._buffer_caption)
adesklets.context_set_color(*self._caption_color)
adesklets.text_draw(x,0,self.icons[self._active][0])
# Render final result on caption buffer
#
adesklets.context_set_image(0)
adesklets.blend_image_onto_image(self._buffer_caption,1,
0,0,
self._window_width,
self._caption_height,
0,adesklets.echo('$y'),
self._window_width,
self._caption_height)
def ready(self):
# Real initialisation take place here.
#
self.config=Config(adesklets.get_id(),
join(self.basedir,'config.txt'))
# Load all the icons, and retrieve size
#
for icon, caption, command in self.config['icons']:
adesklets.context_set_image(
adesklets.load_image(join(self.basedir,'icons',icon)))
self.icons.append((caption, command,
adesklets.context_get_image(),
adesklets.image_get_width(),
adesklets.image_get_height()))
# Compute the window size
#
self._window_width=((self.config['icon_spacing']+
self.config['icon_min_width'])*len(self.icons)+
(self.config['icon_max_width']-
self.config['icon_min_width'])+
self.config['icon_spacing'])
self._window_height=self.config['icon_max_height']
# Set the icon buffer
#
self._buffer_icons=adesklets.create_image(self._window_width,
self._window_height)
# Load the caption font (if needed), adjusting
# the window size appropriately
#
if self.config['caption_font']:
adesklets.context_set_font(
adesklets.load_font('%s/%s' %
(self.config['caption_font'],
str(self.config['caption_size']))))
dummy, self._caption_height = adesklets.get_text_size('x')
self._window_height+=self._caption_height
# Create the caption buffer
#
self._buffer_caption=adesklets.create_image(self._window_width,
self._caption_height)
# Compute and save final caption color once and for all
#
color_base=self.config.color(self.config['caption_color'])
self._caption_color = color_base + [255]
# Prepare the fade-in effect
#
if self.config['caption_fade_in']:
adesklets.start_recording()
time_step = (float(self.config['caption_fade_in_duration'])/
self.config['caption_fade_in_steps'])
fade_step = int(250/self.config['caption_fade_in_steps'])
for i in range(self.config['caption_fade_in_steps']):
adesklets.time_gate((i+1)*time_step)
adesklets.context_set_image('$buffer')
adesklets.context_set_color(0,0,0,0)
adesklets.image_fill_rectangle('$x',0,
'$width','$height')
adesklets.context_set_color(*(color_base+[fade_step*i+5]))
adesklets.text_draw('$x',0,'$text')
adesklets.context_set_image(0)
adesklets.blend_image_onto_image('$buffer',1,
'$x',0,'$width','$height',
'$x','$y','$width','$height')
self._fadein = adesklets.stop_recording()
adesklets.play_set_abort_on_events(True)
# Set the 'y' and 'buffer' variables once and for all
#
if self.config['caption_above']:
adesklets.set('y',0)
else:
adesklets.set('y',self.config['icon_max_height'])
adesklets.set('buffer',self._buffer_caption)
else:
self._caption_height=0
# Resize the window
#
adesklets.window_resize(self._window_width,self._window_height)
adesklets.context_set_image(0)
# Finish setting things up, then display the window
#
adesklets.context_set_blend(False)
adesklets.window_set_transparency(True)
adesklets.menu_add_separator()
adesklets.menu_add_item('Configure')
self._display_icons()
adesklets.window_show()
