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Viewing changes to grc/gui/NotebookPage.py

  • Committer: Bazaar Package Importer
  • Author(s): Kamal Mostafa
  • Date: 2010-03-13 07:46:01 UTC
  • mfrom: (2.1.2 sid)
  • Revision ID: james.westby@ubuntu.com-20100313074601-zjsa893a87bozyh7
Tags: 3.2.2.dfsg-1ubuntu1
https://launchpad.net/bugs/260406
* Fix build for Ubuntu lucid (LP: #260406)
  - add binary package dep for libusrp0, libusrp2-0: adduser
  - debian/rules clean: remove pre-built Qt moc files

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grc/gui/NotebookPage.py
 
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"""
 
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Copyright 2008, 2009 Free Software Foundation, Inc.
 
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This file is part of GNU Radio
 
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GNU Radio Companion is free software; you can redistribute it and/or
 
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modify it under the terms of the GNU General Public License
 
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as published by the Free Software Foundation; either version 2
 
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of the License, or (at your option) any later version.
 
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GNU Radio Companion is distributed in the hope that it will be useful,
 
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but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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GNU General Public License for more details.
 
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You should have received a copy of the GNU General Public License
 
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along with this program; if not, write to the Free Software
 
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 
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"""
 
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from Actions import FLOW_GRAPH_CLOSE
 
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import pygtk
 
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pygtk.require('2.0')
 
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import gtk
 
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from StateCache import StateCache
 
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from Constants import MIN_WINDOW_WIDTH, MIN_WINDOW_HEIGHT
 
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from DrawingArea import DrawingArea
 
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import os
 
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############################################################
 
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## Notebook Page
 
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############################################################
 
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class NotebookPage(gtk.HBox):
 
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        """A page in the notebook."""
 
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        def __init__(self, main_window, flow_graph, file_path=''):
 
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                """
 
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                Page constructor.
 
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                @param main_window main window
 
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                @param file_path path to a flow graph file
 
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                """
 
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                self._flow_graph = flow_graph
 
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                self.set_pid(None)
 
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                #import the file
 
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                self.main_window = main_window
 
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                self.set_file_path(file_path)
 
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                initial_state = flow_graph.get_parent().parse_flow_graph(file_path)
 
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                self.state_cache = StateCache(initial_state)
 
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                self.set_saved(True)
 
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                #import the data to the flow graph
 
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                self.get_flow_graph().import_data(initial_state)
 
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                #initialize page gui
 
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                gtk.HBox.__init__(self, False, 0)
 
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                self.show()
 
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                #tab box to hold label and close button
 
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                self.tab = gtk.HBox(False, 0)
 
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                #setup tab label
 
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                self.label = gtk.Label()
 
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                self.tab.pack_start(self.label, False)
 
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                #setup button image
 
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                image = gtk.Image()
 
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                image.set_from_stock('gtk-close', gtk.ICON_SIZE_MENU)
 
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                #setup image box
 
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                image_box = gtk.HBox(False, 0)
 
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                image_box.pack_start(image, True, False, 0)
 
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                #setup the button
 
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                button = gtk.Button()
 
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                button.connect("clicked", self._handle_button)
 
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                button.set_relief(gtk.RELIEF_NONE)
 
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                button.add(image_box)
 
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                #button size
 
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                w, h = gtk.icon_size_lookup_for_settings(button.get_settings(), gtk.ICON_SIZE_MENU)
 
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                button.set_size_request(w+6, h+6)
 
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                self.tab.pack_start(button, False)
 
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                self.tab.show_all()
 
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                #setup scroll window and drawing area
 
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                self.scrolled_window = gtk.ScrolledWindow()
 
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                self.scrolled_window.set_size_request(MIN_WINDOW_WIDTH, MIN_WINDOW_HEIGHT)
 
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                self.scrolled_window.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
 
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                self.drawing_area = DrawingArea(self.get_flow_graph())
 
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                self.scrolled_window.add_with_viewport(self.get_drawing_area())
 
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                self.pack_start(self.scrolled_window)
 
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                #inject drawing area and handle states into flow graph
 
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                self.get_flow_graph().drawing_area = self.get_drawing_area()
 
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                self.get_flow_graph().handle_states = main_window.handle_states
 
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                self.show_all()
 
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        def get_drawing_area(self): return self.drawing_area
 
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        def get_generator(self):
 
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                """
 
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                Get the generator object for this flow graph.
 
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                @return generator
 
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                """
 
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                return self.get_flow_graph().get_parent().get_generator()(
 
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                        self.get_flow_graph(),
 
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                        self.get_file_path(),
 
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                )
 
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        def _handle_button(self, button):
 
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                """
 
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                The button was clicked.
 
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                Make the current page selected, then close.
 
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                @param the button
 
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                """
 
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                self.main_window.page_to_be_closed = self
 
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                self.main_window.handle_states(FLOW_GRAPH_CLOSE)
 
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        def set_markup(self, markup):
 
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                """
 
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                Set the markup in this label.
 
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                @param markup the new markup text
 
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                """
 
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                self.label.set_markup(markup)
 
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        def get_tab(self):
 
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                """
 
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                Get the gtk widget for this page's tab.
 
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                @return gtk widget
 
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                """
 
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                return self.tab
 
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        def get_pid(self):
 
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                """
 
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                Get the pid for the flow graph.
 
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                @return the pid number
 
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                """
 
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                return self.pid
 
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        def set_pid(self, pid):
 
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                """
 
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                Set the pid number.
 
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                @param pid the new pid number
 
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                """
 
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                self.pid = pid
 
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        def get_flow_graph(self):
 
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                """
 
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                Get the flow graph.
 
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                @return the flow graph
 
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                """
 
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                return self._flow_graph
 
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        def get_read_only(self):
 
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                """
 
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                Get the read-only state of the file.
 
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                Always false for empty path.
 
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                @return true for read-only
 
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                """
 
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                if not self.get_file_path(): return False
 
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                return os.path.exists(self.get_file_path()) and \
 
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                not os.access(self.get_file_path(), os.W_OK)
 
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        def get_file_path(self):
 
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                """
 
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                Get the file path for the flow graph.
 
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                @return the file path or ''
 
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                """
 
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                return self.file_path
 
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        def set_file_path(self, file_path=''):
 
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                """
 
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                Set the file path, '' for no file path.
 
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                @param file_path file path string
 
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                """
 
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                if file_path: self.file_path = os.path.abspath(file_path)
 
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                else: self.file_path = ''
 
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        def get_saved(self):
 
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                """
 
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                Get the saved status for the flow graph.
 
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                @return true if saved
 
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                """
 
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                return self.saved
 
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        def set_saved(self, saved=True):
 
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                """
 
178
                Set the saved status.
 
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                @param saved boolean status
 
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                """
 
181
                self.saved = saved
 
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        def get_state_cache(self):
 
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                """
 
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                Get the state cache for the flow graph.
 
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                @return the state cache
 
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                """
 
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                return self.state_cache