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comparison demos/pychan_demo/poc_gui_animation.py @ 600:427150724fe1

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- added new pychan demo: gui animations FEATURES: - shows (very basic) animations like resizing, moving and changing colors of a pychan.widget by using FIFE TimeEvents
author chewie@33b003aa-7bff-0310-803a-e67f0ece8222
date Fri, 27 Aug 2010 16:59:54 +0000
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children 8c9cdcc9bc4f
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599:a2024b994ca3 600:427150724fe1
1 # -*- coding: utf-8 -*-
2 # ####################################################################
3 # Copyright (C) 2005-2010 by the FIFE team
4 # http://www.fifengine.de
5 # This file is part of FIFE.
6 #
7 # FIFE is free software; you can redistribute it and/or
8 # modify it under the terms of the GNU Lesser General Public
9 # License as published by the Free Software Foundation; either
10 # version 2.1 of the License, or (at your option) any later version.
11 #
12 # This library is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 # Lesser General Public License for more details.
16 #
17 # You should have received a copy of the GNU Lesser General Public
18 # License along with this library; if not, write to the
19 # Free Software Foundation, Inc.,
20 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 # ####################################################################
22
23 """ proof-of-concept pychan demo app to test gui animations """
24
25 from pychan_test import PyChanExample
26 from fife.extensions import pychan
27
28 from fife.extensions.pychan.tools import callbackWithArguments as cbwa
29 from fife.extensions.fife_timer import Timer
30
31 import time
32 import random
33
34 ACTION_MOVE = 1
35 ACTION_RESIZE = 2
36 ACTION_COLOR = 3
37 ACTIONS = [ACTION_MOVE, ACTION_RESIZE, ACTION_COLOR]
38
39 DEFAULT_DELAY = 10
40
41 class PocAnimations(PyChanExample):
42 """ a small app (^^) to show how gui animations ~could~ be
43 made by using B{fife.TimeEvent}s
44 """
45 def __init__(self):
46 super(PocAnimations,self).__init__('gui/poc_guianimation.xml')
47
48 self._move_timer = None
49 self._resize_timer = None
50 self._color_timer = None
51
52 def start(self):
53 """
54 load XML file and setup callbacks
55 """
56 self.widget = pychan.loadXML(self.xmlFile)
57
58 self.widget.mapEvents({
59 'closeButton' : self.stop,
60
61 'example_move' : cbwa(self._start_anim, type=ACTION_MOVE),
62 'example_color' : cbwa(self._start_anim, type=ACTION_COLOR),
63 'example_resize': cbwa(self._start_anim, type=ACTION_RESIZE),
64 'example_all' : self._anim_all,
65 'delay' : self._set_delay_display,
66 })
67
68 self.move_example_widget = self.widget.findChild(name="move")
69 self.mew = self.move_example_widget
70
71 self.resize_example_widget = self.widget.findChild(name="resize")
72 self.rew = self.resize_example_widget
73
74 self.color_example_widget = self.widget.findChild(name="color")
75 self.cew = self.color_example_widget
76
77 self.delay_slider = self.widget.findChild(name="delay")
78 self.delay_slider.setValue(float(DEFAULT_DELAY))
79
80 self.delay_display = self.widget.findChild(name="delay_label")
81 self.delay_display.text = unicode(str(DEFAULT_DELAY))
82
83 self.little_matrix = []
84 for x in range(1,4):
85 for y in range(1,4):
86 name = "color_%s_%s" % (x, y)
87 widget = self.widget.findChild(name=name)
88 self.little_matrix.append(widget)
89
90 self.widget.adaptLayout(True)
91 self.widget.show()
92
93 def _set_delay_display(self):
94 """ set delay display according to slider value """
95 value = self.delay_slider.getValue()
96 self.delay_display.text = unicode(str(int(value)))
97
98 def _anim_all(self):
99 """ fire all animations """
100 for action in ACTIONS:
101 self._start_anim(type=action)
102
103 def _start_anim(self, type=None):
104 """ start the animation of the given type """
105 self._reset_anim(type)
106 kwargs = {
107 'delay' : int(self.delay_slider.getValue()),
108 'callback' : None,
109 'repeat' : 0,
110 }
111 if type == ACTION_MOVE:
112 kwargs['callback'] = self._move
113 self._move_timer = Timer(**kwargs)
114 self._move_timer.start()
115 elif type == ACTION_RESIZE:
116 kwargs['callback'] = self._resize
117 self._resize_timer = Timer(**kwargs)
118 self._resize_timer.start()
119 elif type == ACTION_COLOR:
120 kwargs['callback'] = self._color
121 self._color_timer = Timer(**kwargs)
122 self._color_timer.start()
123
124 def _reset_anim(self, type=None):
125 """ undo changes made by the animation (but leave alone disco matrix ^^) """
126 if type == ACTION_MOVE:
127 if self._move_timer:
128 self._move_timer.stop()
129 self.mew.position = 0, 0
130 elif type == ACTION_RESIZE:
131 if self._resize_timer:
132 self._resize_timer.stop()
133 SIZE = 100, 100
134 self.rew.size = SIZE
135 self.rew.min_size = SIZE
136 self.rew.max_size = SIZE
137 self.widget.findChild(name="resize_wrapper").adaptLayout()
138 elif type == ACTION_COLOR:
139 if self._color_timer:
140 self._color_timer.stop()
141 COLOR = 255, 255, 255, 100
142 self.cew.base_color = COLOR
143
144 def _move(self):
145 """ move the mew widget """
146 position = list(self.mew.position)
147 if position[0] < 100:
148 position[0] += 1
149 self.mew.position = position
150 else:
151 self._reset_anim(ACTION_MOVE)
152
153 def _resize(self):
154 """ resize the rew widget """
155 size = list(self.rew.size)
156 if size[0] > 0:
157 size[0] -= 1
158 size[1] -= 1
159 self.rew.size = size
160 self.rew.min_size = size
161 self.rew.max_size = size
162 else:
163 self._reset_anim(ACTION_RESIZE)
164
165 def _color(self):
166 """ tint the cew widgets """
167 color = self.cew.base_color
168 red = color.r
169 if red > 1:
170 red -= 1
171 self.cew.base_color = (red, 255, 255, 100)
172
173 # disco!
174 for widget in self.little_matrix:
175 color = tuple(random.randint(1,255) for i in range(1,5))
176 widget.background_color = color
177 else:
178 self._reset_anim(ACTION_COLOR)
179