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# This file is part of the Frescobaldi project, http://www.frescobaldi.org/
#
# Copyright (c) 2008 - 2014 by Wilbert Berendsen
#
# 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 2
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
# See http://www.gnu.org/licenses/ for more information.
"""
A widget that provides a scheme selector, with New and Remove buttons.
"""
from PyQt5.QtCore import QDir, QSettings, pyqtSignal, Qt
from PyQt5.QtWidgets import (
QComboBox, QHBoxLayout, QInputDialog, QLabel, QPushButton, QWidget,
QAction, QMenu, QFileDialog)
import app
import icons
import os
class SchemeSelector(QWidget):
currentChanged = pyqtSignal()
changed = pyqtSignal()
def __init__(self, parent=None):
super(SchemeSelector, self).__init__(parent)
layout = QHBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
self.setLayout(layout)
self.label = QLabel()
self.scheme = QComboBox()
self.menuButton = QPushButton(flat=True)
menu = QMenu(self.menuButton)
self.menuButton.setMenu(menu)
layout.addWidget(self.label)
layout.addWidget(self.scheme)
layout.addWidget(self.menuButton)
layout.addStretch(1)
# action generator
def act(slot, icon=None):
a = QAction(self, triggered=slot)
self.addAction(a)
icon and a.setIcon(icons.get(icon))
return a
# add action
a = self.addAction_ = act(self.slotAdd, 'list-add')
menu.addAction(a)
# remove action
a = self.removeAction = act(self.slotRemove, 'list-remove')
menu.addAction(a)
# rename action
a = self.renameAction = act(self.slotRename, 'document-edit')
menu.addAction(a)
menu.addSeparator()
# import action
a = self.importAction = act(self.slotImport, 'document-open')
menu.addAction(a)
# export action
a = self.exportAction = act(self.slotExport, 'document-save-as')
menu.addAction(a)
self.scheme.currentIndexChanged.connect(self.slotSchemeChanged)
app.translateUI(self)
def translateUI(self):
self.label.setText(_("Scheme:"))
self.menuButton.setText(_("&Menu"))
self.addAction_.setText(_("&Add..."))
self.removeAction.setText(_("&Remove"))
self.renameAction.setText(_("Re&name..."))
self.importAction.setText(_("&Import..."))
self.exportAction.setText(_("&Export..."))
def slotSchemeChanged(self, index):
"""Called when the Scheme combobox is changed by the user."""
self.disableDefault(self.scheme.itemData(index) == 'default')
self.currentChanged.emit()
self.changed.emit()
def disableDefault(self, val):
self.removeAction.setDisabled(val)
self.renameAction.setDisabled(val)
def schemes(self):
"""Returns the list with internal names of currently available schemes."""
return [self.scheme.itemData(i) for i in range(self.scheme.count())]
def currentScheme(self):
"""Returns the internal name of the currently selected scheme"""
return self.scheme.itemData(self.scheme.currentIndex())
def insertSchemeItem(self, name, scheme):
for i in range(1, self.scheme.count()):
n = self.scheme.itemText(i)
if n.lower() > name.lower():
self.scheme.insertItem(i, name, scheme)
break
else:
self.scheme.addItem(name, scheme)
def addScheme(self, name):
num, key = 1, 'user1'
while key in self.schemes() or key in self._schemesToRemove:
num += 1
key = 'user{0}'.format(num)
self.insertSchemeItem(name, key)
self.scheme.setCurrentIndex(self.scheme.findData(key))
return key
def slotAdd(self):
name, ok = QInputDialog.getText(self,
app.caption(_("Add Scheme")),
_("Please enter a name for the new scheme:"))
if ok:
self.addScheme(name)
def slotRemove(self):
index = self.scheme.currentIndex()
scheme = self.scheme.itemData(index)
if scheme == 'default':
return # default can not be removed
self._schemesToRemove.add(scheme)
self.scheme.removeItem(index)
def slotRename(self):
index = self.scheme.currentIndex()
name = self.scheme.itemText(index)
scheme = self.scheme.itemData(index)
newName, ok = QInputDialog.getText(self, _("Rename"), _("New name:"), text=name)
if ok:
self.scheme.blockSignals(True)
self.scheme.removeItem(index)
self.insertSchemeItem(newName, scheme)
self.scheme.setCurrentIndex(self.scheme.findData(scheme))
self.scheme.blockSignals(False)
self.changed.emit()
def slotImport(self):
filetypes = "{0} (*.xml);;{1} (*)".format(_("XML Files"), _("All Files"))
caption = app.caption(_("dialog title", "Import color theme"))
filename = QFileDialog.getOpenFileName(self, caption, QDir.homePath(), filetypes)[0]
if filename:
self.parent().import_(filename)
def slotExport(self):
name = self.scheme.currentText()
filetypes = "{0} (*.xml);;{1} (*)".format(_("XML Files"), _("All Files"))
caption = app.caption(_("dialog title",
"Export {name}").format(name=name))
path = os.path.join(QDir.homePath(), name+'.xml')
filename = QFileDialog.getSaveFileName(self, caption, path, filetypes)[0]
if filename:
if os.path.splitext(filename)[1] != '.xml':
filename += '.xml'
self.parent().export(name, filename)
def loadSettings(self, currentKey, namesGroup):
# don't mark schemes for removal anymore
self._schemesToRemove = set()
s = QSettings()
cur = s.value(currentKey, "default", str)
# load the names for the shortcut schemes
s.beginGroup(namesGroup)
block = self.scheme.blockSignals(True)
self.scheme.clear()
self.scheme.addItem(_("Default"), "default")
lst = [(s.value(key, key, str), key) for key in s.childKeys()]
for name, key in sorted(lst, key=lambda f: f[0].lower()):
self.scheme.addItem(name, key)
# find out index
index = self.scheme.findData(cur)
self.disableDefault(cur == 'default')
self.scheme.setCurrentIndex(index)
self.scheme.blockSignals(block)
self.currentChanged.emit()
def saveSettings(self, currentKey, namesGroup, removePrefix=None):
# first save new scheme names
s = QSettings()
s.beginGroup(namesGroup)
for i in range(self.scheme.count()):
if self.scheme.itemData(i) != 'default':
s.setValue(self.scheme.itemData(i), self.scheme.itemText(i))
for scheme in self._schemesToRemove:
s.remove(scheme)
s.endGroup()
if removePrefix:
for scheme in self._schemesToRemove:
s.remove("{0}/{1}".format(removePrefix, scheme))
# then save current
scheme = self.currentScheme()
s.setValue(currentKey, scheme)
# clean up
self._schemesToRemove = set()
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