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comparison gui/filebrowser.py @ 0:7a89ea5404b1

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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
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children 06145a6ee387
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-1:000000000000 0:7a89ea5404b1
1 # This program is free software: you can redistribute it and/or modify
2 # it under the terms of the GNU General Public License as published by
3 # the Free Software Foundation, either version 3 of the License, or
4 # (at your option) any later version.
5
6 # This program is distributed in the hope that it will be useful,
7 # but WITHOUT ANY WARRANTY; without even the implied warranty of
8 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 # GNU General Public License for more details.
10
11 # You should have received a copy of the GNU General Public License
12 # along with this program. If not, see <http://www.gnu.org/licenses/>.
13
14 from fife.extensions import pychan
15 from fife.extensions.pychan import widgets
16
17 import sys
18 import os
19 import logging
20
21 logger = logging.getLogger('filebrowser')
22
23 def u2s(string):
24 # TODO: cryptic function name
25 return string.encode(sys.getfilesystemencoding())
26
27 class FileBrowser(object):
28 """FileBrowser displays directory and file listings from the vfs.
29 The file_selected parameter is a callback invoked when a file selection
30 has been made; its signature must be file_selected(path,filename). If
31 select_dir is set, file_selected's filename parameter should be optional.
32 The save_file option provides a box for supplying a new filename that
33 doesn't exist yet. The select_dir option allows directories to be
34 selected as well as files."""
35 def __init__(self, engine, settings, file_selected, gui_xml_path,
36 close_callback=None, save_file=False, select_dir=False,
37 extensions=('.dat',)):
38 self.engine = engine
39 self.settings = settings
40 print self.settings.parpg.SavesPath
41 self.file_selected = file_selected
42
43 self._widget = None
44 self.save_file = save_file
45 self.select_dir = select_dir
46 self.close_callback = close_callback
47 self.gui_xml_path = gui_xml_path
48
49 self.extensions = extensions
50 self.path = os.path.join(self.settings.user_path,
51 self.settings.parpg.SavesPath)
52 self.dir_list = []
53 self.file_list = []
54
55 def close(self):
56 """Closes the browser"""
57 self._widget.hide()
58 if self.close_callback:
59 self.close_callback()
60
61 def showBrowser(self):
62 """Shows the file dialog browser"""
63 if self._widget:
64 self._widget.show()
65 return
66 self._widget = pychan.loadXML(self.gui_xml_path)
67 self._widget.mapEvents({
68 'dirList' : self._setPath,
69 'selectButton' : self._selectFile,
70 'closeButton' : self.close
71 })
72 self._setPath()
73 if self.save_file:
74 self._file_entry = widgets.TextField(name='saveField', text=u'')
75 self._widget.findChild(name="fileColumn").\
76 addChild(self._file_entry)
77 self._widget.show()
78
79 def _setPath(self):
80 """Path change callback."""
81 selection = self._widget.collectData('dirList')
82 if not (selection < 0):
83 new_dir = u2s(self.dir_list[selection])
84 lst = self.path.split('/')
85 if new_dir == '..' and lst[-1] != '..' and lst[-1] != '.':
86 lst.pop()
87 else:
88 lst.append(new_dir)
89 self.path = '/'.join(lst)
90
91 def decodeList(list):
92 fs_encoding = sys.getfilesystemencoding()
93 if fs_encoding is None: fs_encoding = "ascii"
94
95 new_list = []
96 for i in list:
97 try:
98 new_list.append(unicode(i, fs_encoding))
99 except:
100 new_list.append(unicode(i, fs_encoding, 'replace'))
101 logger.debug("WARNING: Could not decode item:\n"
102 "{0}".format(i))
103 return new_list
104
105
106
107 self.dir_list = []
108 self.file_list = []
109
110 dir_list = ('..',) + filter(lambda d: not d.startswith('.'), \
111 self.engine.getVFS().\
112 listDirectories(self.path))
113 file_list = filter(lambda f: f.split('.')[-1] in self.extensions, \
114 self.engine.getVFS().listFiles(self.path))
115
116 self.dir_list = decodeList(dir_list)
117 self.file_list = decodeList(file_list)
118 self._widget.distributeInitialData({
119 'dirList' : self.dir_list,
120 'fileList' : self.file_list
121 })
122
123 def _selectFile(self):
124 """ File selection callback. """
125 self._widget.hide()
126 selection = self._widget.collectData('fileList')
127
128 if self.save_file:
129 data = self._widget.collectData('saveField')
130 if data:
131 if (data.endswith(".dat")):
132 self.file_selected(self.path, \
133 u2s(self._widget.collectData('saveField')))
134 else:
135 self.file_selected(self.path,
136 u2s(self._widget.collectData('saveField')) + '.dat')
137 return
138
139
140 if selection >= 0 and selection < len(self.file_list):
141 self.file_selected(self.path, u2s(self.file_list[selection]))
142 return
143
144 if self.select_dir:
145 self.file_selected(self.path)
146 return
147
148 logger.error('no selection')
149
150 def _warningMessage(self):
151 """Shows the warning message dialog when a file with a
152 faulty extension was selected."""
153 window = widgets.Window(title="Warning")
154 text = "Please save the file as a .dat"
155 label = widgets.Label(text=text)
156 ok_button = widgets.Button(name="ok_button", text="Ok")
157 window.addChildren([label, ok_button])
158 window.mapEvents({'ok_button':window.hide})
159 window.show()