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import gtk
import cairo
import gobject
# pi constants
M_PI = 3.1415926535897931
PI_DIV_180 = M_PI/180.0
class FancyProgress(gtk.DrawingArea):
RADIUS = 36
def __init__(self):
gtk.DrawingArea.__init__(self)
self._fraction = 0.0
self._animator = None
self.connect('expose-event', self._on_expose)
return
def set_fraction(self, fraction):
self.fraction = fraction
self._animate_progress()
return
def _animate_progress(self):
a = self.allocation
if not a:
return
r = self.RADIUS
xc, yc = a.width/2, a.height/2
da = (xc-r, yc-r, 2*r, 2*r)
self._step = (self.fraction-self._fraction)*0.25
if not self._animator:
self._animator = gobject.timeout_add(20, self._animate_progress_cb, da)
if self.fraction >= 1.0:
self._fraction = 1.0
gobject.source_remove(self._animator)
self._animator = None
self.queue_draw_area(*da)
return
def _animate_progress_cb(self, da):
self._fraction += self._step
self.queue_draw_area(*da)
return True
def _on_expose(self, widget, event):
a = widget.allocation
cr = widget.window.cairo_create()
# pie
xc, yc = a.width/2, a.height/2
angle2 = 360*self._fraction*PI_DIV_180
cr.move_to(xc, yc)
cr.line_to(xc, yc-self.RADIUS)
cr.new_sub_path()
cr.arc(xc, yc, self.RADIUS, 0, angle2)
cr.line_to(xc, yc)
cr.set_source_rgb(1,0,1)
cr.fill()
cr.arc(xc, yc, self.RADIUS, 0, 360*PI_DIV_180)
cr.stroke()
del cr
return
#class FancyImage(gtk.DrawingArea):
# BORDER_WIDTH = 25
# DROPSHADOW_CORNERS = {
# 'nw': gtk.gdk.pixbuf_new_from_file('data/misc/nw.png'),
# 'ne': gtk.gdk.pixbuf_new_from_file('data/misc/ne.png'),
# 'sw': gtk.gdk.pixbuf_new_from_file('data/misc/sw.png'),
# 'se': gtk.gdk.pixbuf_new_from_file('data/misc/se.png')
# }
# def __init__(self):
# gtk.DrawingArea.__init__(self)
# self.pixbuf = None
# self._animator = None
# self.connect('expose-event', self.on_expose_cb)
# return
# def set_from_file(self, path):
# # if there is an animation kill the handler
# if self._animator:
# gobject.source_remove(self._animator)
# if not path:
# return False
# im_data = self.load_image(path)
# self.display_image(im_data)
# return
# def load_image(self, path):
# pic = gtk.gdk.PixbufAnimation(path)
# pb = pic.get_static_image()
# w, h = pb.get_width(), pb.get_height()
# w += 2*self.BORDER_WIDTH
# h += 2*self.BORDER_WIDTH
# self.set_size_request(w, h)
# if pic.is_static_image():
# pb_iter = None
# else:
# pb_iter = pic.get_iter()
# return pb, pb_iter
# def display_image(self, im_data):
# pb, pb_iter, = im_data
# self.pixbuf = pb
# self.queue_draw()
# if pb_iter:
# # if animation; start animation
# # calc draw area
# self._animator = gobject.timeout_add(
# pb_iter.get_delay_time(),
# self.advance_cb,
# pb_iter)
# return
# def draw_image(self, cr, pb, x, y, w, h):
# # draw dropshadow
# self.draw_dropshadow(cr, x-1, y-1, w+2, h+2)
# # draw image frame
# cr.rectangle(x-1, y-1, w+2, h+2)
# cr.set_source_rgb(1,1,1)
# cr.fill()
# # redraw old image
# cr.set_source_pixbuf(pb, x, y)
# cr.paint()
# return
# def draw_dropshadow(self, cr, x, y, sw, sh):
# cr.set_line_width(1)
# # n shadow
# xO, x1 = x+2, x+sw-2
# self.line(cr,0.0667,xO,y-0.5,x1,y-0.5)
# self.line(cr,0.0196,xO,y-1.5,x1,y-1.5)
# # s shadow
# xO += 2
# x1 -= 2
# yO = y+sh+0.5
# self.line(cr,0.6824,xO,yO,x1,yO)
# self.line(cr,0.5216,xO,yO+1,x1,yO+1)
# self.line(cr,0.3294,xO,yO+2,x1,yO+2)
# self.line(cr,0.1686,xO,yO+3,x1,yO+3)
# self.line(cr,0.0667,xO,yO+4,x1,yO+4)
# self.line(cr,0.0196,xO,yO+5,x1,yO+5)
# # e shadow
# xO, yO, y1 = x+sw+0.5, y+5, y+sh-2
# self.line(cr,0.3294,xO,yO,xO,y1)
# self.line(cr,0.1686,xO+1,yO,xO+1,y1)
# self.line(cr,0.0667,xO+2,yO,xO+2,y1)
# self.line(cr,0.0196,xO+3,yO,xO+3,y1)
# # w shadow
# xO = x-0.5
# self.line(cr,0.3294,xO,yO,xO,y1)
# self.line(cr,0.1686,xO-1,yO,xO-1,y1)
# self.line(cr,0.0667,xO-2,yO,xO-2,y1)
# self.line(cr,0.0196,xO-3,yO,xO-3,y1)
# # corner shadows from cached pixbufs
# cnrs = self.DROPSHADOW_CORNERS
# cr.set_source_pixbuf(cnrs['nw'], x-4, y-2)
# cr.paint()
# cr.set_source_pixbuf(cnrs['ne'], x+sw-2, y-2)
# cr.paint()
# cr.set_source_pixbuf(cnrs['sw'], x-4, y+sh-2)
# cr.paint()
# cr.set_source_pixbuf(cnrs['se'], x+sw-4, y+sh-2)
# cr.paint()
# return
# def line(self, cr, a, x0, y0, x1, y1):
# # just a plain old line
# cr.set_source_rgba(0,0,0,a)
# cr.move_to(x0,y0)
# cr.line_to(x1,y1)
# cr.stroke()
# return
# def on_expose_cb(self, widget, event):
# cr = widget.window.cairo_create()
# cr.rectangle(event.area)
# cr.clip()
# alloc = widget.get_allocation()
# aw, ah = alloc.width, alloc.height
# # bg
# lin = cairo.LinearGradient(0, 0, 0, ah)
# lin.add_color_stop_rgb(1, 0.2235, 0.2392, 0.2941)
# lin.add_color_stop_rgb(0, 0.2863, 0.3176, 0.3843)
# cr.set_source(lin)
# rounded_rect(cr, 0, 0, aw, ah, 3)
# cr.fill()
# if aw > 1 and ah > 1 and self.pixbuf:
# w, h = self.pixbuf.get_width(), self.pixbuf.get_height()
# x = (aw - w)/2
# y = (ah - h)/2
# self.draw_image(cr, self.pixbuf, x, y, w, h)
# del cr
# return
# def on_change_cb(self, imstore):
# self.set_image(imstore.get_path())
# return
# def advance_cb(self, pb_iter):
# self.pixbuf = pb_iter.get_pixbuf()
# pb_iter.advance()
# self.queue_draw()
# return True
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