source: subversion/applications/routing/pyroute/menuIcons.py @ 27980

Last change on this file since 27980 was 12252, checked in by jeansch, 11 years ago

Fixed 'tah' URL
Fixed starting from another directory
Implemented 'scroll' events to allow to change zoom from mouse-wheel
Implemented initial position

File size: 2.1 KB
Line 
1#!/usr/bin/python
2#-----------------------------------------------------------------------------
3# Menu graphics (icons)
4#
5# Usage:
6#   (library code for pyroute GUI, not for direct use)
7#-----------------------------------------------------------------------------
8# Copyright 2007, Oliver White
9#
10# This program is free software: you can redistribute it and/or modify
11# it under the terms of the GNU General Public License as published by
12# the Free Software Foundation, either version 3 of the License, or
13# (at your option) any later version.
14#
15# This program is distributed in the hope that it will be useful,
16# but WITHOUT ANY WARRANTY; without even the implied warranty of
17# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18# GNU General Public License for more details.
19#
20# You should have received a copy of the GNU General Public License
21# along with this program.  If not, see <http://www.gnu.org/licenses/>.
22#-----------------------------------------------------------------------------
23import cairo
24import os
25class menuIcons:
26  def __init__(self):
27    self.images = {}
28    self.cantLoad = []
29    self.load('blank')
30    self.load('generic')
31  def load(self,name):
32    filename = os.path.join(os.path.dirname(__file__), "icons", "bitmap/%s.png" % name)
33    if(not os.path.exists(filename)):
34      print "Can't load %s" % filename
35      return(0)
36   
37    image = cairo.ImageSurface.create_from_png(filename)
38    if(not image):
39      return(0)
40    w = float(image.get_width())
41    h = float(image.get_height())
42    #print "Loaded %s: %d x %d" % (name,w,h)
43    self.images[name] = {'image':image,'w':w,'h':h}
44    return(1)
45  def draw(self,cr,name,x,y,w,h):
46    if not name in self.images.keys():
47      if(name in self.cantLoad):
48        name = 'generic'
49      elif(not self.load(name)):
50        self.cantLoad.append(name)
51        name='generic'
52       
53    icon = self.images[name]
54    cr.save()
55    cr.translate(x,y)
56    cr.scale(w / icon['w'], h / icon['h'])
57    cr.set_source_surface(icon['image'],0,0)
58    cr.paint()
59    cr.restore()
60 
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