""" Copyright 2008 Free Software Foundation, Inc. This file is part of GNU Radio GNU Radio Companion 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. GNU Radio Companion 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 Street, Fifth Floor, Boston, MA 02110-1301, USA """ from Constants import \ MIN_WINDOW_WIDTH, MIN_WINDOW_HEIGHT, \ NEW_FLOGRAPH_TITLE, REPORTS_WINDOW_HEIGHT from Actions import \ APPLICATION_QUIT, FLOW_GRAPH_KILL, \ FLOW_GRAPH_SAVE import pygtk pygtk.require('2.0') import gtk import Bars from BlockTreeWindow import BlockTreeWindow from Dialogs import TextDisplay, MessageDialogHelper from DrawingArea import DrawingArea from NotebookPage import NotebookPage import Preferences import Messages import os ############################################################ # Main window ############################################################ class MainWindow(gtk.Window): """The topmost window with menus, the tool bar, and other major windows.""" def __init__(self, handle_states, platform): """ MainWindow contructor. @param handle_states the callback function """ self._platform = platform #setup window self.handle_states = handle_states gtk.Window.__init__(self, gtk.WINDOW_TOPLEVEL) vbox = gtk.VBox() hbox = gtk.HBox() self.add(vbox) #create the menu bar and toolbar vbox.pack_start(Bars.MenuBar(), False) vbox.pack_start(Bars.Toolbar(), False) #setup scrolled window self.scrolled_window = gtk.ScrolledWindow() self.scrolled_window.set_size_request(MIN_WINDOW_WIDTH, MIN_WINDOW_HEIGHT) self.scrolled_window.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC) self.drawing_area = DrawingArea(self) self.scrolled_window.add_with_viewport(self.drawing_area) #create the notebook self.notebook = gtk.Notebook() self.page_to_be_closed = None self.current_page = None self.notebook.set_show_border(False) self.notebook.set_scrollable(True) #scroll arrows for page tabs self.notebook.connect('switch-page', self._handle_page_change) fg_and_report_box = gtk.VBox(False, 0) fg_and_report_box.pack_start(self.notebook, False, False, 0) fg_and_report_box.pack_start(self.scrolled_window) hbox.pack_start(fg_and_report_box) vbox.pack_start(hbox) #create the side windows side_box = gtk.VBox() hbox.pack_start(side_box, False) side_box.pack_start(BlockTreeWindow(platform, self.get_flow_graph)) #allow resize, selection window can have more space #create the reports window self.text_display = TextDisplay() #house the reports in a scrolled window self.reports_scrolled_window = gtk.ScrolledWindow() self.reports_scrolled_window.set_size_request(-1, REPORTS_WINDOW_HEIGHT) self.reports_scrolled_window.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC) self.reports_scrolled_window.add_with_viewport(self.text_display) fg_and_report_box.pack_end(self.reports_scrolled_window, False) #dont allow resize, fg should get all the space #show all but the main window container and the reports window vbox.show_all() self.notebook.hide() self._show_reports_window(False) # load preferences and show the main window Preferences.load(platform) self.resize(*Preferences.window_size()) self.show()#show after resize in preferences ############################################################ # Event Handlers ############################################################ def _quit(self, window, event): """ Handle the delete event from the main window. Generated by pressing X to close, alt+f4, or right click+close. This method in turns calls the state handler to quit. @return true """ self.handle_states(APPLICATION_QUIT) return True def _handle_page_change(self, notebook, page, page_num): """ Handle a page change. When the user clicks on a new tab, reload the flow graph to update the vars window and call handle states (select nothing) to update the buttons. @param notebook the notebook @param page new page @param page_num new page number """ self.current_page = self.notebook.get_nth_page(page_num) Messages.send_page_switch(self.current_page.get_file_path()) self.handle_states() ############################################################ # Report Window ############################################################ def add_report_line(self, line): """ Place line at the end of the text buffer, then scroll its window all the way down. @param line the new text """ self.text_display.insert(line) vadj = self.reports_scrolled_window.get_vadjustment() vadj.set_value(vadj.upper) vadj.emit('changed') def _show_reports_window(self, show): """ Show the reports window when show is True. Hide the reports window when show is False. @param show boolean flag """ if show: self.reports_scrolled_window.show() else: self.reports_scrolled_window.hide() ############################################################ # Pages: create and close ############################################################ def new_page(self, file_path='', show=False): """ Create a new notebook page. Set the tab to be selected. @param file_path optional file to load into the flow graph @param show true if the page should be shown after loading """ #if the file is already open, show the open page and return if file_path and file_path in self._get_files(): #already open page = self.notebook.get_nth_page(self._get_files().index(file_path)) self._set_page(page) return try: #try to load from file if file_path: Messages.send_start_load(file_path) flow_graph = self._platform.get_new_flow_graph() #inject drawing area and handle states into flow graph flow_graph.drawing_area = self.drawing_area flow_graph.handle_states = self.handle_states page = NotebookPage( self, flow_graph=flow_graph, file_path=file_path, ) if file_path: Messages.send_end_load() except Exception, e: #return on failure Messages.send_fail_load(e) return #add this page to the notebook self.notebook.append_page(page, page.get_tab()) try: self.notebook.set_tab_reorderable(page, True) except: pass #gtk too old self.notebook.set_tab_label_packing(page, False, False, gtk.PACK_START) #only show if blank or manual if not file_path or show: self._set_page(page) def close_pages(self): """ Close all the pages in this notebook. @return true if all closed """ open_files = filter(lambda file: file, self._get_files()) #filter blank files open_file = self.get_page().get_file_path() #close each page for page in self._get_pages(): self.page_to_be_closed = page self.close_page(False) if self.notebook.get_n_pages(): return False #save state before closing Preferences.files_open(open_files) Preferences.file_open(open_file) Preferences.window_size(self.get_size()) Preferences.save() return True def close_page(self, ensure=True): """ Close the current page. If the notebook becomes empty, and ensure is true, call new page upon exit to ensure that at least one page exists. @param ensure boolean """ if not self.page_to_be_closed: self.page_to_be_closed = self.get_page() #show the page if it has an executing flow graph or is unsaved if self.page_to_be_closed.get_pid() or not self.page_to_be_closed.get_saved(): self._set_page(self.page_to_be_closed) #unsaved? ask the user if not self.page_to_be_closed.get_saved() and self._save_changes(): self.handle_states(FLOW_GRAPH_SAVE) #try to save if not self.page_to_be_closed.get_saved(): #still unsaved? self.page_to_be_closed = None #set the page to be closed back to None return #stop the flow graph if executing if self.page_to_be_closed.get_pid(): self.handle_states(FLOW_GRAPH_KILL) #remove the page self.notebook.remove_page(self.notebook.page_num(self.page_to_be_closed)) if ensure and self.notebook.get_n_pages() == 0: self.new_page() #no pages, make a new one self.page_to_be_closed = None #set the page to be closed back to None ############################################################ # Misc ############################################################ def update(self): """ Set the title of the main window. Set the titles on the page tabs. Show/hide the reports window. @param title the window title """ if self.get_page(): title = ''.join(( Preferences.window_prefix(), ' - Editing: ', (self.get_page().get_file_path() or NEW_FLOGRAPH_TITLE), (self.get_page().get_saved() and ' ' or '*'), #blank must be non empty (self.get_page().get_read_only() and ' (read-only)' or ''), ) ) else: title = MAIN_WINDOW_PREFIX + ' - Editor ' gtk.Window.set_title(self, title) #set tab titles for page in self._get_pages(): #get filename and strip out file extension title = os.path.splitext(os.path.basename(page.get_file_path()))[0] page.set_text(''.join(( (title or NEW_FLOGRAPH_TITLE), (page.get_saved() and ' ' or '*'), #blank must be non empty (page.get_read_only() and ' (ro)' or ''), ) ) ) #reports window self._show_reports_window(Preferences.show_reports_window()) #show/hide notebook tabs if len(self._get_pages()) > 1: self.notebook.show() else: self.notebook.hide() def get_page(self): """ Get the selected page. @return the selected page """ return self.current_page def get_flow_graph(self): """ Get the selected flow graph. @return the selected flow graph """ return self.get_page().get_flow_graph() ############################################################ # Helpers ############################################################ def _set_page(self, page): """ Set the current page. @param page the page widget """ self.current_page = page self.notebook.set_current_page(self.notebook.page_num(self.current_page)) def _save_changes(self): """ Save changes to flow graph? @return true if yes """ return MessageDialogHelper( gtk.MESSAGE_QUESTION, gtk.BUTTONS_YES_NO, 'Unsaved Changes!', 'Would you like to save changes before closing?' ) == gtk.RESPONSE_YES def _get_files(self): """ Get the file names for all the pages, in order. @return list of file paths """ return map(lambda page: page.get_file_path(), self._get_pages()) def _get_pages(self): """ Get a list of all pages in the notebook. @return list of pages """ return [self.notebook.get_nth_page(page_num) for page_num in range(self.notebook.get_n_pages())]