forked from openlp/openlp
685 lines
30 KiB
Python
685 lines
30 KiB
Python
# -*- coding: utf-8 -*-
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# vim: autoindent shiftwidth=4 expandtab textwidth=80 tabstop=4 softtabstop=4
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###############################################################################
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# OpenLP - Open Source Lyrics Projection #
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# --------------------------------------------------------------------------- #
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# Copyright (c) 2008-2010 Raoul Snyman #
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# Portions copyright (c) 2008-2010 Tim Bentley, Jonathan Corwin, Michael #
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# Gorven, Scott Guerrieri, Christian Richter, Maikel Stuivenberg, Martin #
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# Thompson, Jon Tibble, Carsten Tinggaard #
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# --------------------------------------------------------------------------- #
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# This program is free software; you can redistribute it and/or modify it #
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# under the terms of the GNU General Public License as published by the Free #
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# Software Foundation; version 2 of the License. #
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# #
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# This program is distributed in the hope that it will be useful, but WITHOUT #
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for #
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# more details. #
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# #
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# You should have received a copy of the GNU General Public License along #
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# with this program; if not, write to the Free Software Foundation, Inc., 59 #
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# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
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###############################################################################
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import os
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import zipfile
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import shutil
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import logging
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from xml.etree.ElementTree import ElementTree, XML
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from PyQt4 import QtCore, QtGui
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from openlp.core.ui import AmendThemeForm
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from openlp.core.theme import Theme
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from openlp.core.lib import OpenLPToolbar, context_menu_action, \
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ThemeXML, str_to_bool, get_text_file_string, build_icon, Receiver, \
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context_menu_separator, SettingsManager, translate, check_item_selected
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from openlp.core.utils import AppLocation, get_filesystem_encoding
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log = logging.getLogger(__name__)
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class ThemeManager(QtGui.QWidget):
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"""
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Manages the orders of Theme.
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"""
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def __init__(self, parent):
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QtGui.QWidget.__init__(self, parent)
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self.parent = parent
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self.settingsSection = u'themes'
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self.Layout = QtGui.QVBoxLayout(self)
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self.Layout.setSpacing(0)
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self.Layout.setMargin(0)
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self.amendThemeForm = AmendThemeForm(self)
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self.Toolbar = OpenLPToolbar(self)
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self.Toolbar.addToolbarButton(
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translate('ThemeManager', 'New Theme'), u':/themes/theme_new.png',
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translate('ThemeManager', 'Create a new theme.'), self.onAddTheme)
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self.Toolbar.addToolbarButton(
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translate('ThemeManager', 'Edit Theme'),
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u':/themes/theme_edit.png',
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translate('ThemeManager', 'Edit a theme.'), self.onEditTheme)
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self.Toolbar.addToolbarButton(
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translate('ThemeManager', 'Delete Theme'),
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u':/general/general_delete.png',
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translate('ThemeManager', 'Delete a theme.'), self.onDeleteTheme)
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self.Toolbar.addSeparator()
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self.Toolbar.addToolbarButton(
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translate('ThemeManager', 'Import Theme'),
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u':/general/general_import.png',
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translate('ThemeManager', 'Import a theme.'), self.onImportTheme)
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self.Toolbar.addToolbarButton(
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translate('ThemeManager', 'Export Theme'),
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u':/general/general_export.png',
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translate('ThemeManager', 'Export a theme.'), self.onExportTheme)
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self.ThemeWidget = QtGui.QWidgetAction(self.Toolbar)
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self.Layout.addWidget(self.Toolbar)
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self.ThemeListWidget = QtGui.QListWidget(self)
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self.ThemeListWidget.setAlternatingRowColors(True)
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self.ThemeListWidget.setIconSize(QtCore.QSize(88, 50))
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self.Layout.addWidget(self.ThemeListWidget)
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self.ThemeListWidget.setContextMenuPolicy(QtCore.Qt.ActionsContextMenu)
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self.ThemeListWidget.addAction(
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context_menu_action(self.ThemeListWidget,
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u':/themes/theme_edit.png',
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translate('ThemeManager', '&Edit Theme'), self.onEditTheme))
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self.ThemeListWidget.addAction(
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context_menu_separator(self.ThemeListWidget))
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self.ThemeListWidget.addAction(
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context_menu_action(self.ThemeListWidget,
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u':/general/general_delete.png',
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translate('ThemeManager', '&Delete Theme'),
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self.onDeleteTheme))
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self.ThemeListWidget.addAction(
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context_menu_action(self.ThemeListWidget,
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u':/general/general_export.png',
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translate('ThemeManager', 'Set As &Global Default'),
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self.changeGlobalFromScreen))
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self.ThemeListWidget.addAction(
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context_menu_action(self.ThemeListWidget,
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u':/general/general_export.png',
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translate('ThemeManager', 'E&xport Theme'),
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self.onExportTheme))
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self.ThemeListWidget.addAction(
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context_menu_separator(self.ThemeListWidget))
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#Signals
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QtCore.QObject.connect(self.ThemeListWidget,
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QtCore.SIGNAL(u'doubleClicked(QModelIndex)'),
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self.changeGlobalFromScreen)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'theme_update_global'), self.changeGlobalFromTab)
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#Variables
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self.themelist = []
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self.path = AppLocation.get_section_data_path(self.settingsSection)
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self.checkThemesExists(self.path)
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self.thumbPath = os.path.join(self.path, u'thumbnails')
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self.checkThemesExists(self.thumbPath)
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self.amendThemeForm.path = self.path
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# Last little bits of setting up
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self.global_theme = unicode(QtCore.QSettings().value(
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self.settingsSection + u'/global theme',
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QtCore.QVariant(u'')).toString())
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def changeGlobalFromTab(self, themeName):
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"""
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Change the global theme when it is changed through the Themes settings
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tab
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"""
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log.debug(u'changeGlobalFromTab %s', themeName)
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for count in range (0, self.ThemeListWidget.count()):
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#reset the old name
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item = self.ThemeListWidget.item(count)
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oldName = item.text()
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newName = unicode(item.data(QtCore.Qt.UserRole).toString())
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if oldName != newName:
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self.ThemeListWidget.item(count).setText(newName)
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#Set the new name
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if themeName == newName:
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name = unicode(translate('ThemeManager', '%s (default)')) % \
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newName
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self.ThemeListWidget.item(count).setText(name)
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def changeGlobalFromScreen(self, index = -1):
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"""
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Change the global theme when a theme is double clicked upon in the
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Theme Manager list
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"""
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log.debug(u'changeGlobalFromScreen %s', index)
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selected_row = self.ThemeListWidget.currentRow()
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for count in range (0, self.ThemeListWidget.count()):
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item = self.ThemeListWidget.item(count)
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oldName = item.text()
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#reset the old name
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if oldName != unicode(item.data(QtCore.Qt.UserRole).toString()):
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self.ThemeListWidget.item(count).setText(
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unicode(item.data(QtCore.Qt.UserRole).toString()))
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#Set the new name
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if count == selected_row:
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self.global_theme = unicode(
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self.ThemeListWidget.item(count).text())
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name = unicode(translate('ThemeManager', '%s (default)')) % \
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self.global_theme
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self.ThemeListWidget.item(count).setText(name)
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QtCore.QSettings().setValue(
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self.settingsSection + u'/global theme',
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QtCore.QVariant(self.global_theme))
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Receiver.send_message(u'theme_update_global', self.global_theme)
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self.pushThemes()
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def onAddTheme(self):
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"""
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Loads a new theme with the default settings and then launches the theme
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editing form for the user to make their customisations.
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"""
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theme = self.createThemeFromXml(self.baseTheme(), self.path)
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self.amendThemeForm.loadTheme(theme)
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self.saveThemeName = u''
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self.amendThemeForm.exec_()
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def onEditTheme(self):
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"""
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Loads the settings for the theme that is to be edited and launches the
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theme editing form so the user can make their changes.
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"""
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if check_item_selected(self.ThemeListWidget, translate('ThemeManager',
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'You must select a theme to edit.')):
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item = self.ThemeListWidget.currentItem()
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theme = self.getThemeData(
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unicode(item.data(QtCore.Qt.UserRole).toString()))
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self.amendThemeForm.loadTheme(theme)
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self.saveThemeName = unicode(
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item.data(QtCore.Qt.UserRole).toString())
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self.amendThemeForm.exec_()
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def onDeleteTheme(self):
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"""
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Delete a theme
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"""
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self.global_theme = unicode(QtCore.QSettings().value(
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self.settingsSection + u'/global theme',
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QtCore.QVariant(u'')).toString())
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if check_item_selected(self.ThemeListWidget, translate('ThemeManager',
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'You must select a theme to delete.')):
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item = self.ThemeListWidget.currentItem()
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theme = unicode(item.text())
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# should be the same unless default
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if theme != unicode(item.data(QtCore.Qt.UserRole).toString()):
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QtGui.QMessageBox.critical(self,
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translate('ThemeManager', 'Error'),
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translate('ThemeManager',
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'You are unable to delete the default theme.'),
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QtGui.QMessageBox.StandardButtons(QtGui.QMessageBox.Ok))
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else:
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for plugin in self.parent.plugin_manager.plugins:
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if not plugin.canDeleteTheme(theme):
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QtGui.QMessageBox.critical(self,
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translate('ThemeManager', 'Error'),
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unicode(translate('ThemeManager',
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'Theme %s is use in %s plugin.')) % \
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(theme, plugin.name))
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return
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if unicode(self.parent.ServiceManagerContents.ThemeComboBox \
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.currentText()) == theme:
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QtGui.QMessageBox.critical(self,
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translate('ThemeManager', 'Error'),
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unicode(translate('ThemeManager',
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'Theme %s is use by the service manager.')) % theme)
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return
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self.themelist.remove(theme)
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th = theme + u'.png'
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row = self.ThemeListWidget.row(item)
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self.ThemeListWidget.takeItem(row)
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try:
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os.remove(os.path.join(self.path, th))
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os.remove(os.path.join(self.thumbPath, th))
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encoding = get_filesystem_encoding()
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shutil.rmtree(
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os.path.join(self.path, theme).encode(encoding))
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except OSError:
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#if not present do not worry
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pass
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# As we do not reload the themes push out the change
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# Reaload the list as the internal lists and events need
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# to be triggered
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self.pushThemes()
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def onExportTheme(self):
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"""
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Save the theme in a zip file
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"""
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item = self.ThemeListWidget.currentItem()
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if item is None:
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QtGui.QMessageBox.critical(self,
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translate('ThemeManager', 'Error'),
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translate('ThemeManager', 'You have not selected a theme.'))
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return
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theme = unicode(item.data(QtCore.Qt.UserRole).toString())
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path = QtGui.QFileDialog.getExistingDirectory(self,
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unicode(translate('ThemeManager', 'Save Theme - (%s)')) % theme,
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SettingsManager.get_last_dir(self.settingsSection, 1))
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path = unicode(path)
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if path:
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SettingsManager.set_last_dir(self.settingsSection, path, 1)
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themePath = os.path.join(path, theme + u'.theme')
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zip = None
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try:
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zip = zipfile.ZipFile(themePath, u'w')
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source = os.path.join(self.path, theme)
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for files in os.walk(source):
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for name in files[2]:
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zip.write(
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os.path.join(source, name).encode(u'utf-8'),
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os.path.join(theme, name).encode(u'utf-8'))
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QtGui.QMessageBox.information(self,
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translate('ThemeManager', 'Theme Exported'),
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translate('ThemeManager',
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'Your theme has been successfully exported.'))
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except (IOError, OSError):
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log.exception(u'Export Theme Failed')
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QtGui.QMessageBox.critical(self,
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translate('ThemeManager', 'Theme Export Failed'),
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translate('ThemeManager',
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'Your theme could not be exported due to an error.'))
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finally:
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if zip:
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zip.close()
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def onImportTheme(self):
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"""
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Opens a file dialog to select the theme file(s) to import before
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attempting to extract OpenLP themes from those files. This process
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will load both OpenLP version 1 and version 2 themes.
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"""
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files = QtGui.QFileDialog.getOpenFileNames(self,
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translate('ThemeManager', 'Select Theme Import File'),
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SettingsManager.get_last_dir(self.settingsSection),
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translate('ThemeManager', 'Theme (*.*)'))
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log.info(u'New Themes %s', unicode(files))
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if files:
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for file in files:
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SettingsManager.set_last_dir(
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self.settingsSection, unicode(file))
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self.unzipTheme(file, self.path)
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self.loadThemes()
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def loadThemes(self):
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"""
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Loads the theme lists and triggers updates accross the whole system
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using direct calls or core functions and events for the plugins.
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The plugins will call back in to get the real list if they want it.
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"""
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log.debug(u'Load themes from dir')
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self.themelist = []
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self.ThemeListWidget.clear()
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#root, dirs, files = os.walk(self.path)
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dirList = os.listdir(self.path)
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for name in dirList:
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if name.endswith(u'.png'):
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#check to see file is in theme root directory
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theme = os.path.join(self.path, name)
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if os.path.exists(theme):
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textName = os.path.splitext(name)[0]
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if textName == self.global_theme:
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name = unicode(translate('ThemeManager',
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'%s (default)')) % textName
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else:
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name = textName
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thumb = os.path.join(self.thumbPath, u'%s.png' % textName)
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item_name = QtGui.QListWidgetItem(name)
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if os.path.exists(thumb):
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icon = build_icon(thumb)
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else:
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icon = build_icon(theme)
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pixmap = icon.pixmap(QtCore.QSize(88, 50))
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pixmap.save(thumb, u'png')
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item_name.setIcon(icon)
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item_name.setData(QtCore.Qt.UserRole,
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QtCore.QVariant(textName))
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self.ThemeListWidget.addItem(item_name)
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self.themelist.append(textName)
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self.pushThemes()
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def pushThemes(self):
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"""
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Notify listeners that the theme list has been updated
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"""
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Receiver.send_message(u'theme_update_list', self.getThemes())
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def getThemes(self):
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"""
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Return the list of loaded themes
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"""
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return self.themelist
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def getThemeData(self, themename):
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"""
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Returns a theme object from an XML file
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``themename``
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Name of the theme to load from file
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"""
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log.debug(u'getthemedata for theme %s', themename)
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xml_file = os.path.join(self.path, unicode(themename),
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unicode(themename) + u'.xml')
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xml = get_text_file_string(xml_file)
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if not xml:
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xml = self.baseTheme()
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return self.createThemeFromXml(xml, self.path)
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def checkThemesExists(self, dir):
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"""
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Check a theme directory exists and if not create it
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``dir``
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Theme directory to make sure exists
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"""
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log.debug(u'check themes')
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if not os.path.exists(dir):
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os.mkdir(dir)
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def unzipTheme(self, filename, dir):
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"""
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Unzip the theme, remove the preview file if stored
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Generate a new preview fileCheck the XML theme version and upgrade if
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necessary.
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"""
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log.debug(u'Unzipping theme %s', filename)
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filename = unicode(filename)
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zip = None
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outfile = None
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try:
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zip = zipfile.ZipFile(filename)
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filexml = None
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themename = None
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for file in zip.namelist():
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try:
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ucsfile = file.decode(u'utf-8')
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except UnicodeDecodeError:
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QtGui.QMessageBox.critical(
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self, translate('ThemeManager', 'Error'),
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translate('ThemeManager', 'File is not a valid theme.\n'
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'The content encoding is not UTF-8.'))
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log.exception(u'Filename "%s" is not valid UTF-8' %
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file.decode(u'utf-8', u'replace'))
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continue
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osfile = unicode(QtCore.QDir.toNativeSeparators(ucsfile))
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theme_dir = None
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if osfile.endswith(os.path.sep):
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theme_dir = os.path.join(dir, osfile)
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if not os.path.exists(theme_dir):
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os.mkdir(os.path.join(dir, osfile))
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else:
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fullpath = os.path.join(dir, osfile)
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names = osfile.split(os.path.sep)
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if len(names) > 1:
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# not preview file
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if themename is None:
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themename = names[0]
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if theme_dir is None:
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theme_dir = os.path.join(dir, names[0])
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if not os.path.exists(theme_dir):
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os.mkdir(os.path.join(dir, names[0]))
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if os.path.splitext(ucsfile)[1].lower() in [u'.xml']:
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xml_data = zip.read(file)
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try:
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xml_data = xml_data.decode(u'utf-8')
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except UnicodeDecodeError:
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log.exception(u'Theme XML is not UTF-8 '
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u'encoded.')
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break
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if self.checkVersion1(xml_data):
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# upgrade theme xml
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filexml = self.migrateVersion122(xml_data)
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else:
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filexml = xml_data
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outfile = open(fullpath, u'w')
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outfile.write(filexml.encode(u'utf-8'))
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else:
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outfile = open(fullpath, u'wb')
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outfile.write(zip.read(file))
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if filexml:
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self.generateAndSaveImage(dir, themename, filexml)
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else:
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QtGui.QMessageBox.critical(self,
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translate('ThemeManager', 'Error'),
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translate('ThemeManager', 'File is not a valid theme.'))
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log.exception(u'Theme file dosen\'t contain XML data %s' %
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filename)
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except (IOError, NameError):
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QtGui.QMessageBox.critical(self,
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translate('ThemeManager', 'Error'),
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translate('ThemeManager', 'File is not a valid theme.'))
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log.exception(u'Importing theme from zip file failed %s' % filename)
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finally:
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if zip:
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zip.close()
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if outfile:
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outfile.close()
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def checkVersion1(self, xmlfile):
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"""
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Check if a theme is from OpenLP version 1
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``xmlfile``
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Theme XML to check the version of
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"""
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log.debug(u'checkVersion1 ')
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theme = xmlfile.encode(u'ascii', u'xmlcharrefreplace')
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tree = ElementTree(element=XML(theme)).getroot()
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if tree.find(u'BackgroundType') is None:
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return False
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else:
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return True
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def migrateVersion122(self, xml_data):
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"""
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Convert the xml data from version 1 format to the current format.
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New fields are loaded with defaults to provide a complete, working
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theme containing all compatible customisations from the old theme.
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``xml_data``
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Version 1 theme to convert
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"""
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theme = Theme(xml_data)
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newtheme = ThemeXML()
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newtheme.new_document(theme.Name)
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if theme.BackgroundType == 0:
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newtheme.add_background_solid(unicode(
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theme.BackgroundParameter1.name()))
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elif theme.BackgroundType == 1:
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direction = u'vertical'
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if theme.BackgroundParameter3.name() == 1:
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direction = u'horizontal'
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newtheme.add_background_gradient(
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unicode(theme.BackgroundParameter1.name()),
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unicode(theme.BackgroundParameter2.name()), direction)
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else:
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newtheme.add_background_image(unicode(theme.BackgroundParameter1))
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newtheme.add_font(unicode(theme.FontName),
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unicode(theme.FontColor.name()),
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unicode(theme.FontProportion * 3), u'False')
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newtheme.add_font(unicode(theme.FontName),
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unicode(theme.FontColor.name()),
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unicode(12), u'False', u'footer')
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outline = False
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shadow = False
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if theme.Shadow == 1:
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shadow = True
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if theme.Outline == 1:
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outline = True
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vAlignCorrection = 0
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if theme.VerticalAlign == 2:
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vAlignCorrection = 1
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elif theme.VerticalAlign == 1:
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vAlignCorrection = 2
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newtheme.add_display(unicode(shadow), unicode(theme.ShadowColor.name()),
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unicode(outline), unicode(theme.OutlineColor.name()),
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unicode(theme.HorizontalAlign), unicode(vAlignCorrection),
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unicode(theme.WrapStyle), unicode(0))
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return newtheme.extract_xml()
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def saveTheme(self, name, theme_xml, theme_pretty_xml, image_from,
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image_to):
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"""
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Called by thememaintenance Dialog to save the theme
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and to trigger the reload of the theme list
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"""
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log.debug(u'saveTheme %s %s', name, theme_xml)
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theme_dir = os.path.join(self.path, name)
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if not os.path.exists(theme_dir):
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os.mkdir(os.path.join(self.path, name))
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theme_file = os.path.join(theme_dir, name + u'.xml')
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log.debug(theme_file)
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result = QtGui.QMessageBox.Yes
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if self.saveThemeName != name:
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if os.path.exists(theme_file):
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result = QtGui.QMessageBox.question(self,
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translate('ThemeManager', 'Theme Exists'),
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translate('ThemeManager',
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'A theme with this name already exists. '
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'Would you like to overwrite it?'),
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(QtGui.QMessageBox.Yes | QtGui.QMessageBox.No),
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QtGui.QMessageBox.No)
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if result == QtGui.QMessageBox.Yes:
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# Save the theme, overwriting the existing theme if necessary.
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outfile = None
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try:
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outfile = open(theme_file, u'w')
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outfile.write(theme_pretty_xml)
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except IOError:
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log.exception(u'Saving theme to file failed')
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finally:
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if outfile:
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outfile.close()
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if image_from and image_from != image_to:
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try:
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encoding = get_filesystem_encoding()
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shutil.copyfile(
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unicode(image_from).encode(encoding),
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unicode(image_to).encode(encoding))
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except IOError:
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log.exception(u'Failed to save theme image')
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self.generateAndSaveImage(self.path, name, theme_xml)
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self.loadThemes()
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else:
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# Don't close the dialog - allow the user to change the name of
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# the theme or to cancel the theme dialog completely.
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return False
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def generateAndSaveImage(self, dir, name, theme_xml):
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log.debug(u'generateAndSaveImage %s %s %s', dir, name, theme_xml)
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theme = self.createThemeFromXml(theme_xml, dir)
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frame = self.generateImage(theme)
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samplepathname = os.path.join(self.path, name + u'.png')
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if os.path.exists(samplepathname):
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os.unlink(samplepathname)
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frame.save(samplepathname, u'png')
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thumb = os.path.join(self.thumbPath, u'%s.png' % name)
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icon = build_icon(frame)
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pixmap = icon.pixmap(QtCore.QSize(88, 50))
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pixmap.save(thumb, u'png')
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log.debug(u'Theme image written to %s', samplepathname)
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def generateImage(self, themedata):
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"""
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Call the RenderManager to build a Sample Image
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"""
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log.debug(u'generateImage %s ', themedata)
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frame = self.parent.RenderManager.generate_preview(themedata)
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return frame
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def getPreviewImage(self, theme):
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"""
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Return an image representing the look of the theme
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``theme``
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The theme to return the image for
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"""
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log.debug(u'getPreviewImage %s ', theme)
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image = os.path.join(self.path, theme + u'.png')
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return image
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def baseTheme(self):
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"""
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Provide a base theme with sensible defaults
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"""
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log.debug(u'base theme created')
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newtheme = ThemeXML()
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newtheme.new_document(unicode(translate('ThemeManager', 'New Theme')))
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newtheme.add_background_solid(unicode(u'#000000'))
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newtheme.add_font(unicode(QtGui.QFont().family()), unicode(u'#FFFFFF'),
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unicode(30), u'False')
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newtheme.add_font(unicode(QtGui.QFont().family()), unicode(u'#FFFFFF'),
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unicode(12), u'False', u'footer')
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newtheme.add_display(u'False', unicode(u'#FFFFFF'), u'False',
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unicode(u'#FFFFFF'), unicode(0), unicode(0), unicode(0), u'False')
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return newtheme.extract_xml()
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def createThemeFromXml(self, theme_xml, path):
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"""
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Return a theme object using information parsed from XML
|
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``theme_xml``
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The XML data to load into the theme
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"""
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theme = ThemeXML()
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theme.parse(theme_xml)
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self.cleanTheme(theme)
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theme.extend_image_filename(path)
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return theme
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def cleanTheme(self, theme):
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"""
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Clean a theme loaded from an XML file by removing stray whitespace and
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making sure parameters are the correct type for the theme object
|
|
attributes
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"""
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theme.background_color = theme.background_color.strip()
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theme.background_direction = theme.background_direction.strip()
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theme.background_endColor = theme.background_endColor.strip()
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if theme.background_filename:
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theme.background_filename = theme.background_filename.strip()
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#theme.background_mode
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theme.background_startColor = theme.background_startColor.strip()
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#theme.background_type
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if theme.display_display:
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theme.display_display = theme.display_display.strip()
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theme.display_horizontalAlign = \
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int(theme.display_horizontalAlign.strip())
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theme.display_outline = str_to_bool(theme.display_outline)
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#theme.display_outline_color
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theme.display_shadow = str_to_bool(theme.display_shadow)
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#theme.display_shadow_color
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theme.display_verticalAlign = int(theme.display_verticalAlign.strip())
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theme.display_wrapStyle = theme.display_wrapStyle.strip()
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theme.display_slideTransition = theme.display_slideTransition
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theme.font_footer_color = theme.font_footer_color.strip()
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theme.font_footer_height = int(theme.font_footer_height.strip())
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theme.font_footer_indentation = \
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int(theme.font_footer_indentation.strip())
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theme.font_footer_italics = str_to_bool(theme.font_footer_italics)
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theme.font_footer_name = theme.font_footer_name.strip()
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#theme.font_footer_override
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theme.font_footer_proportion = \
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int(theme.font_footer_proportion.strip())
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theme.font_footer_weight = theme.font_footer_weight.strip()
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theme.font_footer_width = int(theme.font_footer_width.strip())
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theme.font_footer_x = int(theme.font_footer_x.strip())
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theme.font_footer_y = int(theme.font_footer_y.strip())
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theme.font_main_color = theme.font_main_color.strip()
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theme.font_main_height = int(theme.font_main_height.strip())
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theme.font_main_italics = str_to_bool(theme.font_main_italics)
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theme.font_main_indentation = int(theme.font_main_indentation)
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theme.font_main_name = theme.font_main_name.strip()
|
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#theme.font_main_override
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theme.font_main_proportion = int(theme.font_main_proportion.strip())
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theme.font_main_weight = theme.font_main_weight.strip()
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theme.font_main_width = int(theme.font_main_width.strip())
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theme.font_main_x = int(theme.font_main_x.strip())
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theme.font_main_y = int(theme.font_main_y.strip())
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#theme.theme_mode
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theme.theme_name = theme.theme_name.strip()
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#theme.theme_version
|