Please include the below as an example of how to use the rgb array
call.
Note that it uses the gdk_rgb_init() call I sent a patch for yesterday.
Thanks,
Jesper
#!/usr/bin/env python
# Simple test of GDK rgb array draw function
# Author: Jesper Skov <[EMAIL PROTECTED]>
# Date: 2000-03-19
from gtk import *
from Numeric import *
from whrandom import *
# Drw area size
width = 800
height = 800
# Number of blobs to paint
count = 100
# how often to update (msecs)
freq = 10
# Blob class. Describes movement behavior
class blob:
x = 0
x_direction = 1
x_change = 10
y = 0
y_direction = 1
y_change = 10
def mutate(self, data):
# Change x position, change direction if borders hit
self.x = self.x + self.xd
if (self.x <= 0):
self.x = 0
self.x_direction = 1
elif (self.x >= self.limit_x-self.width):
self.x = self.limit_x-self.width
self.x_direction = -1
# Change y position, change direction if borders hit
self.y = self.y + self.yd
if (self.y <= 0):
self.y = 0
self.y_direction = 1
elif (self.y >= self.limit_y-self.height):
self.y_direction = -1
self.y = self.limit_y-self.height
# Mutate movement deltas
self.x_change = self.x_change - 1;
if (self.x_change < 0):
self.x_change = int(self.generator.random() * self.max_xd)
self.xd = int(self.generator.random() * self.max_xd) * self.x_direction
self.y_change = self.y_change - 1;
if (self.y_change < 0):
self.y_change = int(self.generator.random() * self.max_yd)
self.yd = int(self.generator.random() * self.max_yd) * self.y_direction
# Mutate color
self.color_change = self.color_change - 1
if (self.color_change < 0):
self.color_change = int(self.generator.random() * self.color_step)
self.array = (self.array + self.color_step).astype(UnsignedInt8)
return TRUE
# Draw this blob
def draw(self, gdk_win):
draw_array(gdk_win, self.gc, self.x, self.y, 0, self.array)
def __init__(self, width, height, limit_x, limit_y, color_step, gc):
self.width = width
self.height = height
self.limit_x = limit_x
self.limit_y = limit_y
self.color_step = color_step
self.gc = gc
self.array = zeros([width, height]).astype(UnsignedInt8)
self.color_change = color_step
self.xd = self.max_xd = width+1
self.yd = self.max_yd = height+1
self.generator = whrandom()
def destroy(*args):
mainquit ()
# Draw all blobs on exposure
def expose_event(widget, event):
win = event.window
for i in range(len(blobs)):
blobs[i].draw(win)
return TRUE
# Init GDK rgb sub-system
gdk_rgb_init()
# Open window and create drawing aread
window = GtkWindow(WINDOW_TOPLEVEL)
window.set_usize(width,height)
window.connect("destroy", destroy)
drw = GtkDrawingArea()
drw.size(width,height)
drw.connect("expose_event", expose_event)
drw.set_events(GDK.EXPOSURE_MASK)
window.add(drw)
drw.show()
window.show ()
# Create the blobs
blobs = []
for i in range(count):
blobs.append(blob((i%20)+1, (i%20)+1, width, height, ((i%10)+1)*10,
drw.get_style().white_gc))
# Set update event handler
def update(data):
for i in range(len(blobs)):
blobs[i].mutate(0)
drw.queue_draw()
return TRUE
timeout_add(freq, update, 0)
# Go
mainloop ()
To unsubscribe: echo "unsubscribe" | mail [EMAIL PROTECTED]
