Mercurial > parpg-source
diff gui/filebrowser.py @ 0:7a89ea5404b1
Initial commit of parpg-core.
author | M. George Hansen <technopolitica@gmail.com> |
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date | Sat, 14 May 2011 01:12:35 -0700 |
parents | |
children | 06145a6ee387 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gui/filebrowser.py Sat May 14 01:12:35 2011 -0700 @@ -0,0 +1,159 @@ +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +from fife.extensions import pychan +from fife.extensions.pychan import widgets + +import sys +import os +import logging + +logger = logging.getLogger('filebrowser') + +def u2s(string): + # TODO: cryptic function name + return string.encode(sys.getfilesystemencoding()) + +class FileBrowser(object): + """FileBrowser displays directory and file listings from the vfs. + The file_selected parameter is a callback invoked when a file selection + has been made; its signature must be file_selected(path,filename). If + select_dir is set, file_selected's filename parameter should be optional. + The save_file option provides a box for supplying a new filename that + doesn't exist yet. The select_dir option allows directories to be + selected as well as files.""" + def __init__(self, engine, settings, file_selected, gui_xml_path, + close_callback=None, save_file=False, select_dir=False, + extensions=('.dat',)): + self.engine = engine + self.settings = settings + print self.settings.parpg.SavesPath + self.file_selected = file_selected + + self._widget = None + self.save_file = save_file + self.select_dir = select_dir + self.close_callback = close_callback + self.gui_xml_path = gui_xml_path + + self.extensions = extensions + self.path = os.path.join(self.settings.user_path, + self.settings.parpg.SavesPath) + self.dir_list = [] + self.file_list = [] + + def close(self): + """Closes the browser""" + self._widget.hide() + if self.close_callback: + self.close_callback() + + def showBrowser(self): + """Shows the file dialog browser""" + if self._widget: + self._widget.show() + return + self._widget = pychan.loadXML(self.gui_xml_path) + self._widget.mapEvents({ + 'dirList' : self._setPath, + 'selectButton' : self._selectFile, + 'closeButton' : self.close + }) + self._setPath() + if self.save_file: + self._file_entry = widgets.TextField(name='saveField', text=u'') + self._widget.findChild(name="fileColumn").\ + addChild(self._file_entry) + self._widget.show() + + def _setPath(self): + """Path change callback.""" + selection = self._widget.collectData('dirList') + if not (selection < 0): + new_dir = u2s(self.dir_list[selection]) + lst = self.path.split('/') + if new_dir == '..' and lst[-1] != '..' and lst[-1] != '.': + lst.pop() + else: + lst.append(new_dir) + self.path = '/'.join(lst) + + def decodeList(list): + fs_encoding = sys.getfilesystemencoding() + if fs_encoding is None: fs_encoding = "ascii" + + new_list = [] + for i in list: + try: + new_list.append(unicode(i, fs_encoding)) + except: + new_list.append(unicode(i, fs_encoding, 'replace')) + logger.debug("WARNING: Could not decode item:\n" + "{0}".format(i)) + return new_list + + + + self.dir_list = [] + self.file_list = [] + + dir_list = ('..',) + filter(lambda d: not d.startswith('.'), \ + self.engine.getVFS().\ + listDirectories(self.path)) + file_list = filter(lambda f: f.split('.')[-1] in self.extensions, \ + self.engine.getVFS().listFiles(self.path)) + + self.dir_list = decodeList(dir_list) + self.file_list = decodeList(file_list) + self._widget.distributeInitialData({ + 'dirList' : self.dir_list, + 'fileList' : self.file_list + }) + + def _selectFile(self): + """ File selection callback. """ + self._widget.hide() + selection = self._widget.collectData('fileList') + + if self.save_file: + data = self._widget.collectData('saveField') + if data: + if (data.endswith(".dat")): + self.file_selected(self.path, \ + u2s(self._widget.collectData('saveField'))) + else: + self.file_selected(self.path, + u2s(self._widget.collectData('saveField')) + '.dat') + return + + + if selection >= 0 and selection < len(self.file_list): + self.file_selected(self.path, u2s(self.file_list[selection])) + return + + if self.select_dir: + self.file_selected(self.path) + return + + logger.error('no selection') + + def _warningMessage(self): + """Shows the warning message dialog when a file with a + faulty extension was selected.""" + window = widgets.Window(title="Warning") + text = "Please save the file as a .dat" + label = widgets.Label(text=text) + ok_button = widgets.Button(name="ok_button", text="Ok") + window.addChildren([label, ok_button]) + window.mapEvents({'ok_button':window.hide}) + window.show()