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annotate src/parpg/gui/filebrowser.py @ 0:1fd2201f5c36

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Initial commit of parpg-core.
author M. George Hansen <technopolitica@gmail.com>
date Sat, 14 May 2011 01:12:35 -0700
parents
children d60f1dab8469
rev   line source
0
1fd2201f5c36 Initial commit of parpg-core.
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1 # This program is free software: you can redistribute it and/or modify
1fd2201f5c36 Initial commit of parpg-core.
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2 # it under the terms of the GNU General Public License as published by
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3 # the Free Software Foundation, either version 3 of the License, or
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4 # (at your option) any later version.
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5
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6 # This program is distributed in the hope that it will be useful,
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7 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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8 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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9 # GNU General Public License for more details.
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10
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11 # You should have received a copy of the GNU General Public License
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12 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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13
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14 from fife.extensions import pychan
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15 from fife.extensions.pychan import widgets
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16
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17 import sys
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18 import os
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19 import logging
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20
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21 logger = logging.getLogger('filebrowser')
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22
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23 def u2s(string):
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24 # TODO: cryptic function name
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25 return string.encode(sys.getfilesystemencoding())
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26
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27 class FileBrowser(object):
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28 """FileBrowser displays directory and file listings from the vfs.
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29 The file_selected parameter is a callback invoked when a file selection
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30 has been made; its signature must be file_selected(path,filename). If
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31 select_dir is set, file_selected's filename parameter should be optional.
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32 The save_file option provides a box for supplying a new filename that
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33 doesn't exist yet. The select_dir option allows directories to be
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34 selected as well as files."""
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35 def __init__(self, engine, settings, file_selected, gui_xml_path,
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36 close_callback=None, save_file=False, select_dir=False,
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37 extensions=('.dat',)):
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38 self.engine = engine
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39 self.settings = settings
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40 print self.settings.parpg.SavesPath
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41 self.file_selected = file_selected
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42
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43 self._widget = None
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44 self.save_file = save_file
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45 self.select_dir = select_dir
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46 self.close_callback = close_callback
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47 self.gui_xml_path = gui_xml_path
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48
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49 self.extensions = extensions
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50 self.path = os.path.join(self.settings.user_path,
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51 self.settings.parpg.SavesPath)
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52 self.dir_list = []
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53 self.file_list = []
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54
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55 def close(self):
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56 """Closes the browser"""
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57 self._widget.hide()
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58 if self.close_callback:
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59 self.close_callback()
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60
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61 def showBrowser(self):
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62 """Shows the file dialog browser"""
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63 if self._widget:
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64 self._widget.show()
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65 return
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66 self._widget = pychan.loadXML(self.gui_xml_path)
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67 self._widget.mapEvents({
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68 'dirList' : self._setPath,
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69 'selectButton' : self._selectFile,
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70 'closeButton' : self.close
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71 })
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72 self._setPath()
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73 if self.save_file:
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74 self._file_entry = widgets.TextField(name='saveField', text=u'')
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75 self._widget.findChild(name="fileColumn").\
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76 addChild(self._file_entry)
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77 self._widget.show()
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78
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79 def _setPath(self):
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80 """Path change callback."""
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81 selection = self._widget.collectData('dirList')
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82 if not (selection < 0):
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83 new_dir = u2s(self.dir_list[selection])
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84 lst = self.path.split('/')
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85 if new_dir == '..' and lst[-1] != '..' and lst[-1] != '.':
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86 lst.pop()
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87 else:
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88 lst.append(new_dir)
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89 self.path = '/'.join(lst)
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90
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91 def decodeList(list):
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92 fs_encoding = sys.getfilesystemencoding()
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93 if fs_encoding is None: fs_encoding = "ascii"
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94
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95 new_list = []
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96 for i in list:
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97 try:
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98 new_list.append(unicode(i, fs_encoding))
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99 except:
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100 new_list.append(unicode(i, fs_encoding, 'replace'))
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101 logger.debug("WARNING: Could not decode item:\n"
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102 "{0}".format(i))
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103 return new_list
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104
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105
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106
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107 self.dir_list = []
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108 self.file_list = []
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109
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110 dir_list = ('..',) + filter(lambda d: not d.startswith('.'), \
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111 self.engine.getVFS().\
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112 listDirectories(self.path))
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113 file_list = filter(lambda f: f.split('.')[-1] in self.extensions, \
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114 self.engine.getVFS().listFiles(self.path))
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115
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116 self.dir_list = decodeList(dir_list)
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117 self.file_list = decodeList(file_list)
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118 self._widget.distributeInitialData({
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119 'dirList' : self.dir_list,
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120 'fileList' : self.file_list
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121 })
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122
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123 def _selectFile(self):
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124 """ File selection callback. """
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125 self._widget.hide()
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126 selection = self._widget.collectData('fileList')
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127
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128 if self.save_file:
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129 data = self._widget.collectData('saveField')
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130 if data:
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131 if (data.endswith(".dat")):
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132 self.file_selected(self.path, \
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133 u2s(self._widget.collectData('saveField')))
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134 else:
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135 self.file_selected(self.path,
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136 u2s(self._widget.collectData('saveField')) + '.dat')
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137 return
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138
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139
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140 if selection >= 0 and selection < len(self.file_list):
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141 self.file_selected(self.path, u2s(self.file_list[selection]))
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142 return
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143
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144 if self.select_dir:
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145 self.file_selected(self.path)
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146 return
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147
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148 logger.error('no selection')
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149
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150 def _warningMessage(self):
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151 """Shows the warning message dialog when a file with a
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152 faulty extension was selected."""
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153 window = widgets.Window(title="Warning")
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154 text = "Please save the file as a .dat"
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155 label = widgets.Label(text=text)
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156 ok_button = widgets.Button(name="ok_button", text="Ok")
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157 window.addChildren([label, ok_button])
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158 window.mapEvents({'ok_button':window.hide})
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159 window.show()