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"""
fading.py - S.Fourmanoit <syfou@users.sourceforge.net>, 2005
adesklets test script for indirect mode, introduced in adesklets 0.2.0:
- It creates a transpaent window of the same size than supplied image
('image/frog.png'; you do not like it? Maybe, but it's mine)
- It then draws the image on in
- It checks for the cursor entering and leaving its window visible parts,
firing a half second fade-out effect (ten frames) on leaving,
interrupting it as needed by new cursor change of position
To try it:
- Install adesklets with both python support enabled (default)
and GNU history support (default)
- Run python fading.py from this directory
"""
import adesklets
class My_Events(adesklets.Events_handler):
witdh = 1
height = 1
fade = ()
image = 'images/frog.png'
def __init__(self):
adesklets.Events_handler.__init__(self)
def __del__(self):
adesklets.Events_handler.__del__(self)
def ready(self):
# Load the image, set the window accordingly
#
adesklets.context_set_image(adesklets.load_image(self.image))
self.width=adesklets.image_get_width();
self.height=adesklets.image_get_height();
adesklets.window_resize(self.width,self.height)
# Let's create our ten step fading tool: a plain color modifier
#
adesklets.context_set_color_modifier(adesklets.create_color_modifier())
adesklets.set_color_modifier_tables(
range(0,256)*3 + [max(0,val-26) for val in range(0,256)])
# Now, let's toggle the interpreter mode,
# and record the complete fading sequence
#
adesklets.start_recording()
for i in range(1,11):
adesklets.context_set_image(3)
adesklets.apply_color_modifier()
adesklets.context_set_image(0)
adesklets.blend_image_onto_image(3,1,
0,0,self.width,self.height,
0,0,self.width,self.height)
adesklets.time_gate(i*.05)
self.fade = adesklets.stop_recording()
# Let's finish seting up the window
#
adesklets.context_set_blend(False)
self._display()
adesklets.play_set_abort_on_events(True) # <== Note this !
adesklets.window_set_transparency(True);
adesklets.window_show()
def leave_notify(self,delayed,x,y):
# Fade-out event handler...
#
if not delayed:
print 'Fading out...',
adesklets.context_set_image(2)
adesklets.clone_image()
if adesklets.play(*self.fade) is None:
print 'ended.'
else:
print 'interrupted.'
adesklets.free_image(3)
def menu_fire(self,delayed,id,str):
# This will get generated first whenever
# the user moves the window, so the LeaveNotify
# afterwards will get delayed, thus go unseen.
pass
def enter_notify(self,delayed,x,y):
# ...that can be aborted (not interrupted!) by this one.
#
self._display()
def _display(self):
# Reset the window to the original image
#
adesklets.context_set_image(0)
adesklets.blend_image_onto_image(2,1,
0,0,self.width,self.height,
0,0,self.width,self.height)
My_Events().pause()
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