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#------------------------------------------------------------------------------
# Copyright (c) 2007, Riverbank Computing Limited
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD license.
# However, when used with the GPL version of PyQt the additional terms described
# in the PyQt GPL exception also apply.
#
# Author: Riverbank Computing Limited
# Description: <Enthought pyface package component>
#------------------------------------------------------------------------------
import sys
# Major package imports.
from pyface.qt import QtGui
# Enthought library imports.
from pyface.action.api import MenuBarManager, StatusBarManager
from pyface.action.api import ToolBarManager
from traits.api import Instance, List, on_trait_change, provides, Unicode
# Local imports.
from pyface.i_application_window import (
IApplicationWindow, MApplicationWindow
)
from pyface.image_resource import ImageResource
from .window import Window
@provides(IApplicationWindow)
class ApplicationWindow(MApplicationWindow, Window):
""" The toolkit specific implementation of an ApplicationWindow. See the
IApplicationWindow interface for the API documentation.
"""
#### 'IApplicationWindow' interface #######################################
#: The icon to display in the application window title bar.
icon = Instance(ImageResource)
#: The menu bar manager for the window.
menu_bar_manager = Instance(MenuBarManager)
#: The status bar manager for the window.
status_bar_manager = Instance(StatusBarManager)
#: DEPRECATED: The tool bar manager for the window.
tool_bar_manager = Instance(ToolBarManager)
#: The collection of tool bar managers for the window.
tool_bar_managers = List(ToolBarManager)
#### 'IWindow' interface ##################################################
#: The window title.
title = Unicode("Pyface")
###########################################################################
# Protected 'IApplicationWindow' interface.
###########################################################################
def _create_contents(self, parent):
panel = QtGui.QWidget(parent)
palette = QtGui.QPalette(panel.palette())
palette.setColor(QtGui.QPalette.Window, QtGui.QColor('blue'))
panel.setPalette(palette)
panel.setAutoFillBackground(True)
return panel
def _create_menu_bar(self, parent):
if self.menu_bar_manager is not None:
menu_bar = self.menu_bar_manager.create_menu_bar(parent)
self.control.setMenuBar(menu_bar)
def _create_status_bar(self, parent):
if self.status_bar_manager is not None:
status_bar = self.status_bar_manager.create_status_bar(parent)
# QMainWindow automatically makes the status bar visible, but we
# have delegated this responsibility to the status bar manager.
self.control.setStatusBar(status_bar)
status_bar.setVisible(self.status_bar_manager.visible)
def _create_tool_bar(self, parent):
tool_bar_managers = self._get_tool_bar_managers()
visible = self.control.isVisible()
for tool_bar_manager in tool_bar_managers:
# Add the tool bar and make sure it is visible.
tool_bar = tool_bar_manager.create_tool_bar(parent)
self.control.addToolBar(tool_bar)
tool_bar.show()
# Make sure that the tool bar has a name so its state can be saved.
if len(tool_bar.objectName()) == 0:
tool_bar.setObjectName(tool_bar_manager.name)
if sys.platform == 'darwin':
# Work around bug in Qt on OS X where creating a tool bar with a
# QMainWindow parent hides the window. See
# http://bugreports.qt.nokia.com/browse/QTBUG-5069 for more info.
self.control.setVisible(visible)
def _set_window_icon(self):
if self.icon is None:
icon = ImageResource('application.png')
else:
icon = self.icon
if self.control is not None:
self.control.setWindowIcon(icon.create_icon())
###########################################################################
# 'Window' interface.
###########################################################################
def _size_default(self):
""" Trait initialiser. """
return (800, 600)
###########################################################################
# Protected 'IWidget' interface.
###########################################################################
def _create(self):
super(ApplicationWindow, self)._create()
contents = self._create_contents(self.control)
self.control.setCentralWidget(contents)
self._create_trim_widgets(self.control)
def _create_control(self, parent):
control = super(ApplicationWindow, self)._create_control(parent)
control.setObjectName('ApplicationWindow')
control.setAnimated(False)
control.setDockNestingEnabled(True)
return control
###########################################################################
# Private interface.
###########################################################################
def _get_tool_bar_managers(self):
""" Return all tool bar managers specified for the window. """
# fixme: V3 remove the old-style single toolbar option!
if self.tool_bar_manager is not None:
tool_bar_managers = [self.tool_bar_manager]
else:
tool_bar_managers = self.tool_bar_managers
return tool_bar_managers
#### Trait change handlers ################################################
# QMainWindow takes ownership of the menu bar and the status bar upon
# assignment. For this reason, it is unnecessary to delete the old controls
# in the following two handlers.
def _menu_bar_manager_changed(self):
if self.control is not None:
self._create_menu_bar(self.control)
def _status_bar_manager_changed(self, old, new):
if self.control is not None:
if old is not None:
old.destroy_status_bar()
self._create_status_bar(self.control)
@on_trait_change('tool_bar_manager, tool_bar_managers')
def _update_tool_bar_managers(self):
if self.control is not None:
# Remove the old toolbars.
for child in self.control.children():
if isinstance(child, QtGui.QToolBar):
self.control.removeToolBar(child)
child.deleteLater()
# Add the new toolbars.
self._create_tool_bar(self.control)
def _icon_changed(self):
self._set_window_icon()
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