diff options
Diffstat (limited to 'grc/gui/Application.py')
| -rw-r--r-- | grc/gui/Application.py | 697 |
1 files changed, 697 insertions, 0 deletions
diff --git a/grc/gui/Application.py b/grc/gui/Application.py new file mode 100644 index 0000000000..c68b38bbaf --- /dev/null +++ b/grc/gui/Application.py @@ -0,0 +1,697 @@ +""" +Copyright 2007-2011 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 __future__ import absolute_import, print_function + +import os +import subprocess + +from gi.repository import Gtk, GObject + +from . import Dialogs, Actions, Executor, FileDialogs, Utils +from .MainWindow import MainWindow +from .ParserErrorsDialog import ParserErrorsDialog +from .PropsDialog import PropsDialog + +from ..core import ParseXML, Messages + + +class Application(Gtk.Application): + """ + The action handler will setup all the major window components, + and handle button presses and flow graph operations from the GUI. + """ + + def __init__(self, file_paths, platform): + Gtk.Application.__init__(self) + """ + Application constructor. + Create the main window, setup the message handler, import the preferences, + and connect all of the action handlers. Finally, enter the gtk main loop and block. + + Args: + file_paths: a list of flow graph file passed from command line + platform: platform module + """ + self.clipboard = None + self.dialog = None + for action in Actions.get_all_actions(): action.connect('activate', self._handle_action) + #setup the main window + self.platform = platform + self.config = platform.config + + #initialize + self.init_file_paths = [os.path.abspath(file_path) for file_path in file_paths] + self.init = False + + def do_startup(self): + Gtk.Application.do_startup(self) + + def do_activate(self): + Gtk.Application.do_activate(self) + + self.main_window = MainWindow(self, self.platform, self._handle_action) + self.main_window.connect('delete-event', self._quit) + self.main_window.connect('key-press-event', self._handle_key_press) + self.get_focus_flag = self.main_window.get_focus_flag + #setup the messages + Messages.register_messenger(self.main_window.add_console_line) + Messages.send_init(self.platform) + + Actions.APPLICATION_INITIALIZE() + + def _handle_key_press(self, widget, event): + """ + Handle key presses from the keyboard and translate key combinations into actions. + This key press handler is called prior to the gtk key press handler. + This handler bypasses built in accelerator key handling when in focus because + * some keys are ignored by the accelerators like the direction keys, + * some keys are not registered to any accelerators but are still used. + When not in focus, gtk and the accelerators handle the the key press. + + Returns: + false to let gtk handle the key action + """ + # prevent key event stealing while the search box is active + # .has_focus() only in newer versions 2.17+? + # .is_focus() seems to work, but exactly the same + if self.main_window.btwin.search_entry.has_focus(): + return False + return Actions.handle_key_press(event) + + 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. + + Returns: + true + """ + Actions.APPLICATION_QUIT() + return True + + def _handle_action(self, action, *args): + #print action + main = self.main_window + page = main.current_page + flow_graph = page.flow_graph if page else None + + def flow_graph_update(fg=flow_graph): + main.vars.update_gui(fg.blocks) + fg.update() + + ################################################## + # Initialize/Quit + ################################################## + if action == Actions.APPLICATION_INITIALIZE: + file_path_to_show = self.config.file_open() + for file_path in (self.init_file_paths or self.config.get_open_files()): + if os.path.exists(file_path): + main.new_page(file_path, show=file_path_to_show == file_path) + if not main.current_page: + main.new_page() # ensure that at least a blank page exists + + main.btwin.search_entry.hide() + + # Disable all actions, then re-enable a few + for action in Actions.get_all_actions(): + action.set_sensitive(False) # set all actions disabled + for action in ( + Actions.APPLICATION_QUIT, Actions.FLOW_GRAPH_NEW, + Actions.FLOW_GRAPH_OPEN, Actions.FLOW_GRAPH_SAVE_AS, + Actions.FLOW_GRAPH_CLOSE, Actions.ABOUT_WINDOW_DISPLAY, + Actions.FLOW_GRAPH_SCREEN_CAPTURE, Actions.HELP_WINDOW_DISPLAY, + Actions.TYPES_WINDOW_DISPLAY, Actions.TOGGLE_BLOCKS_WINDOW, + Actions.TOGGLE_CONSOLE_WINDOW, Actions.TOGGLE_HIDE_DISABLED_BLOCKS, + Actions.TOOLS_RUN_FDESIGN, Actions.TOGGLE_SCROLL_LOCK, + Actions.CLEAR_CONSOLE, Actions.SAVE_CONSOLE, + Actions.TOGGLE_AUTO_HIDE_PORT_LABELS, Actions.TOGGLE_SNAP_TO_GRID, + Actions.TOGGLE_SHOW_BLOCK_COMMENTS, + Actions.TOGGLE_SHOW_CODE_PREVIEW_TAB, + Actions.TOGGLE_SHOW_FLOWGRAPH_COMPLEXITY, + Actions.FLOW_GRAPH_OPEN_QSS_THEME, + Actions.TOGGLE_FLOW_GRAPH_VAR_EDITOR, + Actions.TOGGLE_FLOW_GRAPH_VAR_EDITOR_SIDEBAR, + Actions.TOGGLE_HIDE_VARIABLES, + Actions.SELECT_ALL, + ): + action.set_sensitive(True) + if hasattr(action, 'load_from_preferences'): + action.load_from_preferences() + if ParseXML.xml_failures: + Messages.send_xml_errors_if_any(ParseXML.xml_failures) + Actions.XML_PARSER_ERRORS_DISPLAY.set_sensitive(True) + self.init = True + elif action == Actions.APPLICATION_QUIT: + if main.close_pages(): + Gtk.main_quit() + exit(0) + ################################################## + # Selections + ################################################## + elif action == Actions.ELEMENT_SELECT: + pass #do nothing, update routines below + elif action == Actions.NOTHING_SELECT: + flow_graph.unselect() + elif action == Actions.SELECT_ALL: + flow_graph.select_all() + ################################################## + # Enable/Disable + ################################################## + elif action in (Actions.BLOCK_ENABLE, Actions.BLOCK_DISABLE, Actions.BLOCK_BYPASS): + changed = flow_graph.change_state_selected(new_state={ + Actions.BLOCK_ENABLE: 'enabled', + Actions.BLOCK_DISABLE: 'disabled', + Actions.BLOCK_BYPASS: 'bypassed', + }[action]) + if changed: + flow_graph_update() + page.state_cache.save_new_state(flow_graph.export_data()) + page.saved = False + ################################################## + # Cut/Copy/Paste + ################################################## + elif action == Actions.BLOCK_CUT: + Actions.BLOCK_COPY() + Actions.ELEMENT_DELETE() + elif action == Actions.BLOCK_COPY: + self.clipboard = flow_graph.copy_to_clipboard() + elif action == Actions.BLOCK_PASTE: + if self.clipboard: + flow_graph.paste_from_clipboard(self.clipboard) + flow_graph_update() + page.state_cache.save_new_state(flow_graph.export_data()) + page.saved = False + ################################################## + # Create heir block + ################################################## + elif action == Actions.BLOCK_CREATE_HIER: + + # keeping track of coordinates for pasting later + coords = flow_graph.selected_blocks()[0].coordinate + x,y = coords + x_min = x + y_min = y + + pads = []; + params = []; + + # Save the state of the leaf blocks + for block in flow_graph.selected_blocks(): + + # Check for string variables within the blocks + for param in block.params.values(): + for variable in flow_graph.get_variables(): + # If a block parameter exists that is a variable, create a parameter for it + if param.get_value() == variable.get_id(): + params.append(param.get_value()) + for flow_param in flow_graph.get_parameters(): + # If a block parameter exists that is a parameter, create a parameter for it + if param.get_value() == flow_param.get_id(): + params.append(param.get_value()) + + + # keep track of x,y mins for pasting later + (x,y) = block.coordinate + if x < x_min: + x_min = x + if y < y_min: + y_min = y + + for connection in block.connections: + + # Get id of connected blocks + source_id = connection.source_block.get_id() + sink_id = connection.sink_block.get_id() + + # If connected block is not in the list of selected blocks create a pad for it + if flow_graph.get_block(source_id) not in flow_graph.selected_blocks(): + pads.append({'key': connection.sink_port.key, 'coord': connection.source_port.coordinate, 'block_id' : block.get_id(), 'direction': 'source'}) + + if flow_graph.get_block(sink_id) not in flow_graph.selected_blocks(): + pads.append({'key': connection.source_port.key, 'coord': connection.sink_port.coordinate, 'block_id' : block.get_id(), 'direction': 'sink'}) + + + # Copy the selected blocks and paste them into a new page + # then move the flowgraph to a reasonable position + Actions.BLOCK_COPY() + main.new_page() + Actions.BLOCK_PASTE() + coords = (x_min,y_min) + flow_graph.move_selected(coords) + + + # Set flow graph to heir block type + top_block = flow_graph.get_block("top_block") + top_block.get_param('generate_options').set_value('hb') + + # this needs to be a unique name + top_block.get_param('id').set_value('new_heir') + + # Remove the default samp_rate variable block that is created + remove_me = flow_graph.get_block("samp_rate") + flow_graph.remove_element(remove_me) + + + # Add the param blocks along the top of the window + x_pos = 150 + for param in params: + param_id = flow_graph.add_new_block('parameter',(x_pos,10)) + param_block = flow_graph.get_block(param_id) + param_block.get_param('id').set_value(param) + x_pos = x_pos + 100 + + for pad in pads: + # Add the pad sources and sinks within the new heir block + if pad['direction'] == 'sink': + + # Add new PAD_SINK block to the canvas + pad_id = flow_graph.add_new_block('pad_sink', pad['coord']) + + # setup the references to the sink and source + pad_block = flow_graph.get_block(pad_id) + pad_sink = pad_block.sinks[0] + + source_block = flow_graph.get_block(pad['block_id']) + source = source_block.get_source(pad['key']) + + # Ensure the port types match + while pad_sink.get_type() != source.get_type(): + + # Special case for some blocks that have non-standard type names, e.g. uhd + if pad_sink.get_type() == 'complex' and source.get_type() == 'fc32': + break; + pad_block.type_controller_modify(1) + + # Connect the pad to the proper sinks + new_connection = flow_graph.connect(source,pad_sink) + + elif pad['direction'] == 'source': + pad_id = flow_graph.add_new_block('pad_source', pad['coord']) + + # setup the references to the sink and source + pad_block = flow_graph.get_block(pad_id) + pad_source = pad_block.sources[0] + + sink_block = flow_graph.get_block(pad['block_id']) + sink = sink_block.get_sink(pad['key']) + + # Ensure the port types match + while sink.get_type() != pad_source.get_type(): + # Special case for some blocks that have non-standard type names, e.g. uhd + if pad_source.get_type() == 'complex' and sink.get_type() == 'fc32': + break; + pad_block.type_controller_modify(1) + + # Connect the pad to the proper sinks + new_connection = flow_graph.connect(pad_source,sink) + + # update the new heir block flow graph + flow_graph_update() + + + ################################################## + # Move/Rotate/Delete/Create + ################################################## + elif action == Actions.BLOCK_MOVE: + page.state_cache.save_new_state(flow_graph.export_data()) + page.saved = False + elif action in Actions.BLOCK_ALIGNMENTS: + if flow_graph.align_selected(action): + page.state_cache.save_new_state(flow_graph.export_data()) + page.saved = False + elif action == Actions.BLOCK_ROTATE_CCW: + if flow_graph.rotate_selected(90): + flow_graph_update() + page.state_cache.save_new_state(flow_graph.export_data()) + page.saved = False + elif action == Actions.BLOCK_ROTATE_CW: + if flow_graph.rotate_selected(-90): + flow_graph_update() + page.state_cache.save_new_state(flow_graph.export_data()) + page.saved = False + elif action == Actions.ELEMENT_DELETE: + if flow_graph.remove_selected(): + flow_graph_update() + page.state_cache.save_new_state(flow_graph.export_data()) + Actions.NOTHING_SELECT() + page.saved = False + elif action == Actions.ELEMENT_CREATE: + flow_graph_update() + page.state_cache.save_new_state(flow_graph.export_data()) + Actions.NOTHING_SELECT() + page.saved = False + elif action == Actions.BLOCK_INC_TYPE: + if flow_graph.type_controller_modify_selected(1): + flow_graph_update() + page.state_cache.save_new_state(flow_graph.export_data()) + page.saved = False + elif action == Actions.BLOCK_DEC_TYPE: + if flow_graph.type_controller_modify_selected(-1): + flow_graph_update() + page.state_cache.save_new_state(flow_graph.export_data()) + page.saved = False + elif action == Actions.PORT_CONTROLLER_INC: + if flow_graph.port_controller_modify_selected(1): + flow_graph_update() + page.state_cache.save_new_state(flow_graph.export_data()) + page.saved = False + elif action == Actions.PORT_CONTROLLER_DEC: + if flow_graph.port_controller_modify_selected(-1): + flow_graph_update() + page.state_cache.save_new_state(flow_graph.export_data()) + page.saved = False + ################################################## + # Window stuff + ################################################## + elif action == Actions.ABOUT_WINDOW_DISPLAY: + Dialogs.show_about(main, self.platform.config) + elif action == Actions.HELP_WINDOW_DISPLAY: + Dialogs.show_help(main) + elif action == Actions.TYPES_WINDOW_DISPLAY: + Dialogs.show_types(main) + elif action == Actions.ERRORS_WINDOW_DISPLAY: + Dialogs.ErrorsDialog(main, flow_graph).run_and_destroy() + elif action == Actions.TOGGLE_CONSOLE_WINDOW: + main.update_panel_visibility(main.CONSOLE, action.get_active()) + action.save_to_preferences() + elif action == Actions.TOGGLE_BLOCKS_WINDOW: + main.update_panel_visibility(main.BLOCKS, action.get_active()) + action.save_to_preferences() + elif action == Actions.TOGGLE_SCROLL_LOCK: + active = action.get_active() + main.console.text_display.scroll_lock = active + if active: + main.console.text_display.scroll_to_end() + action.save_to_preferences() + elif action == Actions.CLEAR_CONSOLE: + main.console.text_display.clear() + elif action == Actions.SAVE_CONSOLE: + file_path = FileDialogs.SaveConsole(main, page.file_path).run() + if file_path is not None: + main.console.text_display.save(file_path) + elif action == Actions.TOGGLE_HIDE_DISABLED_BLOCKS: + Actions.NOTHING_SELECT() + elif action == Actions.TOGGLE_AUTO_HIDE_PORT_LABELS: + action.save_to_preferences() + for page in main.get_pages(): + page.flow_graph.create_shapes() + elif action in (Actions.TOGGLE_SNAP_TO_GRID, + Actions.TOGGLE_SHOW_BLOCK_COMMENTS, + Actions.TOGGLE_SHOW_CODE_PREVIEW_TAB): + action.save_to_preferences() + elif action == Actions.TOGGLE_SHOW_FLOWGRAPH_COMPLEXITY: + action.save_to_preferences() + for page in main.get_pages(): + flow_graph_update(page.flow_graph) + elif action == Actions.TOGGLE_HIDE_VARIABLES: + # Call the variable editor TOGGLE in case it needs to be showing + Actions.TOGGLE_FLOW_GRAPH_VAR_EDITOR() + Actions.NOTHING_SELECT() + action.save_to_preferences() + elif action == Actions.TOGGLE_FLOW_GRAPH_VAR_EDITOR: + # See if the variables are hidden + if Actions.TOGGLE_HIDE_VARIABLES.get_active(): + # Force this to be shown + main.update_panel_visibility(main.VARIABLES, True) + action.set_active(True) + action.set_sensitive(False) + else: + if action.get_sensitive(): + main.update_panel_visibility(main.VARIABLES, action.get_active()) + else: # This is occurring after variables are un-hidden + # Leave it enabled + action.set_sensitive(True) + action.set_active(True) + # Actions.TOGGLE_FLOW_GRAPH_VAR_EDITOR_SIDEBAR.set_sensitive(action.get_active()) + action.save_to_preferences() + elif action == Actions.TOGGLE_FLOW_GRAPH_VAR_EDITOR_SIDEBAR: + if self.init: + Dialogs.MessageDialogWrapper( + main, Gtk.MessageType.INFO, Gtk.ButtonsType.CLOSE, + markup="Moving the variable editor requires a restart of GRC." + ).run_and_destroy() + action.save_to_preferences() + ################################################## + # Param Modifications + ################################################## + elif action == Actions.BLOCK_PARAM_MODIFY: + selected_block = action.args[0] if action.args else flow_graph.selected_block + if selected_block: + self.dialog = PropsDialog(self.main_window, selected_block) + response = Gtk.ResponseType.APPLY + while response == Gtk.ResponseType.APPLY: # rerun the dialog if Apply was hit + response = self.dialog.run() + if response in (Gtk.ResponseType.APPLY, Gtk.ResponseType.ACCEPT): + flow_graph_update() + page.state_cache.save_new_state(flow_graph.export_data()) + page.saved = False + else: # restore the current state + n = page.state_cache.get_current_state() + flow_graph.import_data(n) + flow_graph_update() + if response == Gtk.ResponseType.APPLY: + # null action, that updates the main window + Actions.ELEMENT_SELECT() + self.dialog.destroy() + self.dialog = None + elif action == Actions.EXTERNAL_UPDATE: + page.state_cache.save_new_state(flow_graph.export_data()) + flow_graph_update() + if self.dialog is not None: + self.dialog.update_gui(force=True) + page.saved = False + elif action == Actions.VARIABLE_EDITOR_UPDATE: + page.state_cache.save_new_state(flow_graph.export_data()) + flow_graph_update() + page.saved = False + ################################################## + # View Parser Errors + ################################################## + elif action == Actions.XML_PARSER_ERRORS_DISPLAY: + ParserErrorsDialog(ParseXML.xml_failures).run() + ################################################## + # Undo/Redo + ################################################## + elif action == Actions.FLOW_GRAPH_UNDO: + n = page.state_cache.get_prev_state() + if n: + flow_graph.unselect() + flow_graph.import_data(n) + flow_graph_update() + page.saved = False + elif action == Actions.FLOW_GRAPH_REDO: + n = page.state_cache.get_next_state() + if n: + flow_graph.unselect() + flow_graph.import_data(n) + flow_graph_update() + page.saved = False + ################################################## + # New/Open/Save/Close + ################################################## + elif action == Actions.FLOW_GRAPH_NEW: + main.new_page() + if args: + flow_graph._options_block.get_param('generate_options').set_value(args[0]) + flow_graph_update() + elif action == Actions.FLOW_GRAPH_OPEN: + file_paths = args if args else FileDialogs.OpenFlowGraph(main, page.file_path).run() + if file_paths: # Open a new page for each file, show only the first + for i,file_path in enumerate(file_paths): + main.new_page(file_path, show=(i==0)) + self.config.add_recent_file(file_path) + main.tool_bar.refresh_submenus() + main.menu_bar.refresh_submenus() + elif action == Actions.FLOW_GRAPH_OPEN_QSS_THEME: + file_paths = FileDialogs.OpenQSS(main, self.platform.config.install_prefix + + '/share/gnuradio/themes/').run() + if file_paths: + self.platform.config.default_qss_theme = file_paths[0] + elif action == Actions.FLOW_GRAPH_CLOSE: + main.close_page() + elif action == Actions.FLOW_GRAPH_SAVE: + #read-only or undefined file path, do save-as + if page.get_read_only() or not page.file_path: + Actions.FLOW_GRAPH_SAVE_AS() + #otherwise try to save + else: + try: + ParseXML.to_file(flow_graph.export_data(), page.file_path) + flow_graph.grc_file_path = page.file_path + page.saved = True + except IOError: + Messages.send_fail_save(page.file_path) + page.saved = False + elif action == Actions.FLOW_GRAPH_SAVE_AS: + file_path = FileDialogs.SaveFlowGraph(main, page.file_path).run() + if file_path is not None: + page.file_path = os.path.abspath(file_path) + Actions.FLOW_GRAPH_SAVE() + self.config.add_recent_file(file_path) + main.tool_bar.refresh_submenus() + main.menu_bar.refresh_submenus() + elif action == Actions.FLOW_GRAPH_SCREEN_CAPTURE: + file_path, background_transparent = FileDialogs.SaveScreenShot(main, page.file_path).run() + if file_path is not None: + try: + Utils.make_screenshot(flow_graph, file_path, background_transparent) + except ValueError: + Messages.send('Failed to generate screen shot\n') + ################################################## + # Gen/Exec/Stop + ################################################## + elif action == Actions.FLOW_GRAPH_GEN: + if not page.process: + if not page.saved or not page.file_path: + Actions.FLOW_GRAPH_SAVE() # only save if file path missing or not saved + if page.saved and page.file_path: + generator = page.get_generator() + try: + Messages.send_start_gen(generator.file_path) + generator.write() + except Exception as e: + Messages.send_fail_gen(e) + else: + self.generator = None + elif action == Actions.FLOW_GRAPH_EXEC: + if not page.process: + Actions.FLOW_GRAPH_GEN() + xterm = self.platform.config.xterm_executable + Dialogs.show_missing_xterm(main, xterm) + if self.config.xterm_missing() != xterm: + if not os.path.exists(xterm): + Dialogs.show_missing_xterm(main, xterm) + self.config.xterm_missing(xterm) + if page.saved and page.file_path: + Executor.ExecFlowGraphThread( + flow_graph_page=page, + xterm_executable=xterm, + callback=self.update_exec_stop + ) + elif action == Actions.FLOW_GRAPH_KILL: + if page.process: + try: + page.process.kill() + except: + print("could not kill process: %d" % page.process.pid) + elif action == Actions.PAGE_CHANGE: # pass and run the global actions + pass + elif action == Actions.RELOAD_BLOCKS: + self.platform.build_block_library() + main.btwin.repopulate() + Actions.XML_PARSER_ERRORS_DISPLAY.set_sensitive(bool( + ParseXML.xml_failures)) + Messages.send_xml_errors_if_any(ParseXML.xml_failures) + # Force a redraw of the graph, by getting the current state and re-importing it + main.update_pages() + + elif action == Actions.FIND_BLOCKS: + main.update_panel_visibility(main.BLOCKS, True) + main.btwin.search_entry.show() + main.btwin.search_entry.grab_focus() + elif action == Actions.OPEN_HIER: + for b in flow_graph.selected_blocks(): + if b._grc_source: + main.new_page(b._grc_source, show=True) + elif action == Actions.BUSSIFY_SOURCES: + for b in flow_graph.selected_blocks(): + b.bussify('source') + flow_graph._old_selected_port = None + flow_graph._new_selected_port = None + Actions.ELEMENT_CREATE() + + elif action == Actions.BUSSIFY_SINKS: + for b in flow_graph.selected_blocks(): + b.bussify('sink') + flow_graph._old_selected_port = None + flow_graph._new_selected_port = None + Actions.ELEMENT_CREATE() + + elif action == Actions.TOOLS_RUN_FDESIGN: + subprocess.Popen('gr_filter_design', + shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) + + else: + print('!!! Action "%s" not handled !!!' % action) + ################################################## + # Global Actions for all States + ################################################## + page = main.current_page # page and flow graph might have changed + flow_graph = page.flow_graph if page else None + + selected_blocks = list(flow_graph.selected_blocks()) + selected_block = selected_blocks[0] if selected_blocks else None + + #update general buttons + Actions.ERRORS_WINDOW_DISPLAY.set_sensitive(not flow_graph.is_valid()) + Actions.ELEMENT_DELETE.set_sensitive(bool(flow_graph.selected_elements)) + Actions.BLOCK_PARAM_MODIFY.set_sensitive(bool(selected_block)) + Actions.BLOCK_ROTATE_CCW.set_sensitive(bool(selected_blocks)) + Actions.BLOCK_ROTATE_CW.set_sensitive(bool(selected_blocks)) + #update alignment options + for act in Actions.BLOCK_ALIGNMENTS: + if act: + act.set_sensitive(len(selected_blocks) > 1) + #update cut/copy/paste + Actions.BLOCK_CUT.set_sensitive(bool(selected_blocks)) + Actions.BLOCK_COPY.set_sensitive(bool(selected_blocks)) + Actions.BLOCK_PASTE.set_sensitive(bool(self.clipboard)) + #update enable/disable/bypass + can_enable = any(block.state != 'enabled' + for block in selected_blocks) + can_disable = any(block.state != 'disabled' + for block in selected_blocks) + can_bypass_all = ( + all(block.can_bypass() for block in selected_blocks) and + any(not block.get_bypassed() for block in selected_blocks) + ) + Actions.BLOCK_ENABLE.set_sensitive(can_enable) + Actions.BLOCK_DISABLE.set_sensitive(can_disable) + Actions.BLOCK_BYPASS.set_sensitive(can_bypass_all) + + Actions.BLOCK_CREATE_HIER.set_sensitive(bool(selected_blocks)) + Actions.OPEN_HIER.set_sensitive(bool(selected_blocks)) + Actions.BUSSIFY_SOURCES.set_sensitive(bool(selected_blocks)) + Actions.BUSSIFY_SINKS.set_sensitive(bool(selected_blocks)) + Actions.RELOAD_BLOCKS.set_sensitive(True) + Actions.FIND_BLOCKS.set_sensitive(True) + + self.update_exec_stop() + + Actions.FLOW_GRAPH_SAVE.set_sensitive(not page.saved) + main.update() + + flow_graph.update_selected() + page.drawing_area.queue_draw() + + return True # action was handled + + def update_exec_stop(self): + """ + Update the exec and stop buttons. + Lock and unlock the mutex for race conditions with exec flow graph threads. + """ + page = self.main_window.current_page + sensitive = page.flow_graph.is_valid() and not page.process + Actions.FLOW_GRAPH_GEN.set_sensitive(sensitive) + Actions.FLOW_GRAPH_EXEC.set_sensitive(sensitive) + Actions.FLOW_GRAPH_KILL.set_sensitive(page.process is not None) |