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annotate engine/extensions/basicapplication.py @ 336:16112ef84609

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PyChan fixes: * Previous commits removed the ability to map events to unnamed widgets. Fixed.
author phoku@33b003aa-7bff-0310-803a-e67f0ece8222
date Mon, 24 Aug 2009 15:34:23 +0000
parents 48c99636453e
children dfd48d49c044
rev   line source
331
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1 #!/usr/bin/env python
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2 # -*- coding: utf-8 -*-
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3
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4 # ####################################################################
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5 # Copyright (C) 2005-2009 by the FIFE team
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6 # http://www.fifengine.de
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7 # This file is part of FIFE.
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8 #
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9 # FIFE is free software; you can redistribute it and/or
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10 # modify it under the terms of the GNU Lesser General Public
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11 # License as published by the Free Software Foundation; either
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12 # version 2.1 of the License, or (at your option) any later version.
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13 #
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14 # This library is distributed in the hope that it will be useful,
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15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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17 # Lesser General Public License for more details.
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18 #
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19 # You should have received a copy of the GNU Lesser General Public
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20 # License along with this library; if not, write to the
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21 # Free Software Foundation, Inc.,
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22 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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23 # ####################################################################
0
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24
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25 """
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26 The basic application and main loop.
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27
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28 See the L{ApplicationBase} documentation.
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29 """
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30
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31 import fife
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32 import fifelog
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33 from serializers.xmlanimation import XMLAnimationLoader
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34
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35 class ExitEventListener(fife.IKeyListener):
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36 """
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37 Default, rudimentary event listener.
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38
0
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39 Will cause the application to quit on pressing ESC.
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40 """
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41 def __init__(self, app):
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42 self.app = app
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43 self.engine = app.engine
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44 eventmanager = self.engine.getEventManager()
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45 #eventmanager.setNonConsumableKeys([fife.Key.ESCAPE])
0
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46 fife.IKeyListener.__init__(self)
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47 eventmanager.addKeyListener(self)
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48 self.quitRequested = False
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49
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50 def keyPressed(self, evt):
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51 keyval = evt.getKey().getValue()
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52 if keyval == fife.Key.ESCAPE:
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53 self.app.quit()
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54 elif keyval == fife.Key.F10:
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55 self.engine.getGuiManager().getConsole().toggleShowHide()
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56 evt.consume()
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57
0
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58 def keyReleased(self, evt):
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59 pass
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60
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61 class ApplicationBase(object):
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62 """
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63 ApplicationBase is an extendable class that provides a basic environment for a FIFE-based client.
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64
0
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65 The unextended application reads in and initializes engine settings, sets up a simple event
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66 listener, and pumps the engine while listening for a quit message. Specialized applications can
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67 modify settings.py to change initial engine settings. They can provide their own event listener
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68 by overriding L{createListener}. And they can override the L{_pump} method
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69 to define runtime behavior of the application.
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70
0
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71 """
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72 def __init__(self):
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73 self.engine = fife.Engine()
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74
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75 self.loadSettings()
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76 self.initLogging()
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78 self.engine.init()
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80 self._animationloader = XMLAnimationLoader(self.engine.getImagePool(), self.engine.getVFS())
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81 self.engine.getAnimationPool().addResourceLoader(self._animationloader)
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82
0
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83 self.quitRequested = False
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84 self.breakRequested = False
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85 self.returnValues = []
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86
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87 def loadSettings(self):
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88 """
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89 Load the settings from a python file and load them into the engine.
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90 Called in the ApplicationBase constructor.
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91 """
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92 import settings
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93 self.settings = settings
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94
0
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95 engineSetting = self.engine.getSettings()
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96 engineSetting.setDefaultFontGlyphs(settings.FontGlyphs)
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97 engineSetting.setDefaultFontPath(settings.Font)
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98 engineSetting.setDefaultFontSize(12)
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99 engineSetting.setBitsPerPixel(settings.BitsPerPixel)
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100 engineSetting.setFullScreen(settings.FullScreen)
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101 engineSetting.setInitialVolume(settings.InitialVolume)
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102 engineSetting.setRenderBackend(settings.RenderBackend)
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103 engineSetting.setSDLRemoveFakeAlpha(settings.SDLRemoveFakeAlpha)
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104 engineSetting.setScreenWidth(settings.ScreenWidth)
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105 engineSetting.setScreenHeight(settings.ScreenHeight)
107
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106
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107
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108 try:
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109 engineSetting.setWindowTitle(settings.WindowTitle)
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110 engineSetting.setWindowIcon(settings.WindowIcon)
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chewie@33b003aa-7bff-0310-803a-e67f0ece8222
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111 except:
860d81602a2a - prepared basicapplication to use WindowTitle / WindowIcon from clients settings.py
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
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112 pass
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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113 try:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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114 engineSetting.setImageChunkingSize(settings.ImageChunkSize)
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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115 except:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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116 pass
129
9a1529f9625e * Indentation patch by GreyGhost
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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117
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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118 def initLogging(self):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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119 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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120 Initialize the LogManager.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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121 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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122 self.log = fifelog.LogManager(self.engine, self.settings.LogToPrompt, self.settings.LogToFile)
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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123 if self.settings.LogModules:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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124 self.log.setVisibleModules(*self.settings.LogModules)
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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125
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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126 def createListener(self):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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127 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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128 This creates a default event listener, which will just close the program
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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129 after pressing ESC.
129
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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130
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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131 You should override this method to provide your own event handling.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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132 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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133 return ExitEventListener(self)
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134
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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135 def run(self):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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136 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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137 Initialize the event listener and event loop - and start it.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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138 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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139 eventlistener = self.createListener()
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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140 self.engine.initializePumping()
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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141 retval = self.mainLoop()
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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142 self.engine.finalizePumping()
144
d2f1e81fbe2c * Fixed a scons issue, where libraries checked for C instead of C++
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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143 self.engine.destroy()
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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144 return retval
129
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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145
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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146 def mainLoop(self):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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147 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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148 The programs main loop.
129
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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149
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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150 Do not override this, instead provide your own L{_pump} method.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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151 You can call this recursively, e.g. to provide synchronous
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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152 Dialogs :-) and break out of the current mainLoop by calling
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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153 L{breakFromMainLoop}. It will return the argument passed
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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154 to L{breakFromMainLoop}.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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155 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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156 self.returnValues.append(None)
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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157 while not self.quitRequested:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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158 try:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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159 self.engine.pump()
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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160 except RuntimeError, e:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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161 print str(e)
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162
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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163 self._pump()
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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164
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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165 if self.breakRequested:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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166 self.breakRequested = False
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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167 break
129
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 107
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168
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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169 return self.returnValues.pop()
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170
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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171 def breakFromMainLoop(self,returnValue):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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172 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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173 Break from the currently running L{mainLoop}.
129
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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174
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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175 The passed argument will be returned by the mainLoop.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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176 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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177 self.returnValues[-1] = returnValue
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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178 self.breakRequested = True
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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179
129
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 107
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180
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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181 def _pump(self):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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182 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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183 Application pump.
129
9a1529f9625e * Indentation patch by GreyGhost
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 107
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184
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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185 Derived classes can specialize this for unique behavior.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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186 This is called every frame.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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187 """
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188
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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189 def quit(self):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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190 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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191 Quit the application. Really!
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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192 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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193 self.quitRequested = True