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gnuradio-companion/gui/ActionHandler.py
Sebastian Koslowski 59cb4ebdd2 gtk3: add flowgraph draw code and other gtk3 fixes (WIP)
2016-05-24 13:02:23 -04:00

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"""
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
"""
import os
import subprocess
from gi.repository import Gtk
from gi.repository import GObject
from . import Dialogs, Preferences, Actions, Executor, Constants
from .FileDialogs import (OpenFlowGraphFileDialog, SaveFlowGraphFileDialog,
SaveConsoleFileDialog, SaveScreenShotDialog,
OpenQSSFileDialog)
from .MainWindow import MainWindow
from .ParserErrorsDialog import ParserErrorsDialog
from .PropsDialog import PropsDialog
from ..core import ParseXML, Messages
class ActionHandler:
"""
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):
"""
ActionHandler 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.main_window = MainWindow(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_page = self.main_window.get_page
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(platform)
#initialize
self.init_file_paths = file_paths
self.init = False
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.get_page()
flow_graph = page.get_flow_graph() if page else None
def flow_graph_update(fg=flow_graph):
main.vars.update_gui()
fg.update()
##################################################
# Initialize/Quit
##################################################
if action == Actions.APPLICATION_INITIALIZE:
if not self.init_file_paths:
self.init_file_paths = filter(os.path.exists, Preferences.get_open_files())
if not self.init_file_paths: self.init_file_paths = ['']
for file_path in self.init_file_paths:
if file_path: main.new_page(file_path) #load pages from file paths
if Preferences.file_open() in self.init_file_paths:
main.new_page(Preferences.file_open(), show=True)
if not self.get_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 == Actions.BLOCK_ENABLE:
if flow_graph.enable_selected(True):
flow_graph_update()
page.get_state_cache().save_new_state(flow_graph.export_data())
page.set_saved(False)
elif action == Actions.BLOCK_DISABLE:
if flow_graph.enable_selected(False):
flow_graph_update()
page.get_state_cache().save_new_state(flow_graph.export_data())
page.set_saved(False)
elif action == Actions.BLOCK_BYPASS:
if flow_graph.bypass_selected():
flow_graph_update()
page.get_state_cache().save_new_state(flow_graph.export_data())
page.set_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.get_state_cache().save_new_state(flow_graph.export_data())
page.set_saved(False)
##################################################
# Create heir block
##################################################
elif action == Actions.BLOCK_CREATE_HIER:
# keeping track of coordinates for pasting later
coords = flow_graph.get_selected_blocks()[0].get_coordinate()
x,y = coords
x_min = x
y_min = y
pads = [];
params = [];
# Save the state of the leaf blocks
for block in flow_graph.get_selected_blocks():
# Check for string variables within the blocks
for param in block.get_params():
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.get_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.get_source().get_parent().get_id()
sink_id = connection.get_sink().get_parent().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.get_selected_blocks():
pads.append({'key': connection.get_sink().get_key(), 'coord': connection.get_source().get_coordinate(), 'block_id' : block.get_id(), 'direction': 'source'})
if flow_graph.get_block(sink_id) not in flow_graph.get_selected_blocks():
pads.append({'key': connection.get_source().get_key(), 'coord': connection.get_sink().get_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.get_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.get_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.get_state_cache().save_new_state(flow_graph.export_data())
page.set_saved(False)
elif action in Actions.BLOCK_ALIGNMENTS:
if flow_graph.align_selected(action):
page.get_state_cache().save_new_state(flow_graph.export_data())
page.set_saved(False)
elif action == Actions.BLOCK_ROTATE_CCW:
if flow_graph.rotate_selected(90):
flow_graph_update()
page.get_state_cache().save_new_state(flow_graph.export_data())
page.set_saved(False)
elif action == Actions.BLOCK_ROTATE_CW:
if flow_graph.rotate_selected(-90):
flow_graph_update()
page.get_state_cache().save_new_state(flow_graph.export_data())
page.set_saved(False)
elif action == Actions.ELEMENT_DELETE:
if flow_graph.remove_selected():
flow_graph_update()
page.get_state_cache().save_new_state(flow_graph.export_data())
Actions.NOTHING_SELECT()
page.set_saved(False)
elif action == Actions.ELEMENT_CREATE:
flow_graph_update()
page.get_state_cache().save_new_state(flow_graph.export_data())
Actions.NOTHING_SELECT()
page.set_saved(False)
elif action == Actions.BLOCK_INC_TYPE:
if flow_graph.type_controller_modify_selected(1):
flow_graph_update()
page.get_state_cache().save_new_state(flow_graph.export_data())
page.set_saved(False)
elif action == Actions.BLOCK_DEC_TYPE:
if flow_graph.type_controller_modify_selected(-1):
flow_graph_update()
page.get_state_cache().save_new_state(flow_graph.export_data())
page.set_saved(False)
elif action == Actions.PORT_CONTROLLER_INC:
if flow_graph.port_controller_modify_selected(1):
flow_graph_update()
page.get_state_cache().save_new_state(flow_graph.export_data())
page.set_saved(False)
elif action == Actions.PORT_CONTROLLER_DEC:
if flow_graph.port_controller_modify_selected(-1):
flow_graph_update()
page.get_state_cache().save_new_state(flow_graph.export_data())
page.set_saved(False)
##################################################
# Window stuff
##################################################
elif action == Actions.ABOUT_WINDOW_DISPLAY:
platform = flow_graph.get_parent()
Dialogs.AboutDialog(platform.config)
elif action == Actions.HELP_WINDOW_DISPLAY:
Dialogs.HelpDialog()
elif action == Actions.TYPES_WINDOW_DISPLAY:
Dialogs.TypesDialog(flow_graph.get_parent())
elif action == Actions.ERRORS_WINDOW_DISPLAY:
Dialogs.ErrorsDialog(flow_graph)
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.text_display.scroll_lock = active
if active:
main.text_display.scroll_to_end()
action.save_to_preferences()
elif action == Actions.CLEAR_CONSOLE:
main.text_display.clear()
elif action == Actions.SAVE_CONSOLE:
file_path = SaveConsoleFileDialog(page.get_file_path()).run()
if file_path is not None:
main.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.get_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.get_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:
md = Gtk.MessageDialog(main,
Gtk.DIALOG_DESTROY_WITH_PARENT, Gtk.MESSAGE_INFO,
Gtk.BUTTONS_CLOSE, "Moving the variable editor requires a restart of GRC.")
md.run()
md.destroy()
action.save_to_preferences()
##################################################
# Param Modifications
##################################################
elif action == Actions.BLOCK_PARAM_MODIFY:
if action.args:
selected_block = action.args[0]
else:
selected_block = flow_graph.get_selected_block()
if selected_block:
self.dialog = PropsDialog(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.get_state_cache().save_new_state(flow_graph.export_data())
page.set_saved(False)
else: # restore the current state
n = page.get_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.get_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.set_saved(False)
elif action == Actions.VARIABLE_EDITOR_UPDATE:
page.get_state_cache().save_new_state(flow_graph.export_data())
flow_graph_update()
page.set_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.get_state_cache().get_prev_state()
if n:
flow_graph.unselect()
flow_graph.import_data(n)
flow_graph_update()
page.set_saved(False)
elif action == Actions.FLOW_GRAPH_REDO:
n = page.get_state_cache().get_next_state()
if n:
flow_graph.unselect()
flow_graph.import_data(n)
flow_graph_update()
page.set_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:
# TODO: Disable opening the flowgraph
pass
'''
file_paths = args if args else OpenFlowGraphFileDialog(page.get_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))
Preferences.add_recent_file(file_path)
main.tool_bar.refresh_submenus()
main.menu_bar.refresh_submenus()
main.vars.update_gui()
'''
elif action == Actions.FLOW_GRAPH_OPEN_QSS_THEME:
file_paths = OpenQSSFileDialog(self.platform.config.install_prefix +
'/share/gnuradio/themes/').run()
if file_paths:
try:
prefs = self.platform.config.prefs
prefs.set_string("qtgui", "qss", file_paths[0])
prefs.save()
except Exception as e:
Messages.send("Failed to save QSS preference: " + str(e))
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.get_file_path():
Actions.FLOW_GRAPH_SAVE_AS()
#otherwise try to save
else:
try:
ParseXML.to_file(flow_graph.export_data(), page.get_file_path())
flow_graph.grc_file_path = page.get_file_path()
page.set_saved(True)
except IOError:
Messages.send_fail_save(page.get_file_path())
page.set_saved(False)
elif action == Actions.FLOW_GRAPH_SAVE_AS:
file_path = SaveFlowGraphFileDialog(page.get_file_path()).run()
if file_path is not None:
page.set_file_path(file_path)
Actions.FLOW_GRAPH_SAVE()
Preferences.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 = SaveScreenShotDialog(page.get_file_path()).run()
if file_path is not None:
pixbuf = flow_graph.get_drawing_area().get_screenshot(background_transparent)
pixbuf.save(file_path, Constants.IMAGE_FILE_EXTENSION[1:])
##################################################
# Gen/Exec/Stop
##################################################
elif action == Actions.FLOW_GRAPH_GEN:
if not page.get_proc():
if not page.get_saved() or not page.get_file_path():
Actions.FLOW_GRAPH_SAVE() #only save if file path missing or not saved
if page.get_saved() and page.get_file_path():
generator = page.get_generator()
try:
Messages.send_start_gen(generator.get_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.get_proc():
Actions.FLOW_GRAPH_GEN()
xterm = self.platform.config.xterm_executable
if Preferences.xterm_missing() != xterm:
if not os.path.exists(xterm):
Dialogs.MissingXTermDialog(xterm)
Preferences.xterm_missing(xterm)
if page.get_saved() and page.get_file_path():
Executor.ExecFlowGraphThread(
flow_graph_page=page,
xterm_executable=xterm,
callback=self.update_exec_stop
)
elif action == Actions.FLOW_GRAPH_KILL:
if page.get_proc():
try:
page.get_proc().kill()
except:
print "could not kill process: %d" % page.get_proc().pid
elif action == Actions.PAGE_CHANGE: # pass and run the global actions
pass
elif action == Actions.RELOAD_BLOCKS:
self.platform.load_blocks()
main.btwin.clear()
self.platform.load_block_tree(main.btwin)
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.get_selected_blocks():
if b._grc_source:
main.new_page(b._grc_source, show=True)
elif action == Actions.BUSSIFY_SOURCES:
n = {'name':'bus', 'type':'bus'}
for b in flow_graph.get_selected_blocks():
b.bussify(n, 'source')
flow_graph._old_selected_port = None
flow_graph._new_selected_port = None
Actions.ELEMENT_CREATE()
elif action == Actions.BUSSIFY_SINKS:
n = {'name':'bus', 'type':'bus'}
for b in flow_graph.get_selected_blocks():
b.bussify(n, '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.get_page() # page and flowgraph might have changed
flow_graph = page.get_flow_graph() if page else None
selected_blocks = flow_graph.get_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.get_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.get_state() != Constants.BLOCK_ENABLED
for block in selected_blocks)
can_disable = any(block.get_state() != Constants.BLOCK_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)
#set the exec and stop buttons
self.update_exec_stop()
#saved status
Actions.FLOW_GRAPH_SAVE.set_sensitive(not page.get_saved())
main.update()
try: #set the size of the flow graph area (if changed)
new_size = (flow_graph.get_option('window_size') or
self.platform.config.default_canvas_size)
if flow_graph.get_size() != tuple(new_size):
flow_graph.set_size(*new_size)
except: pass
#draw the flow graph
flow_graph.update_selected()
flow_graph.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.
"""
sensitive = self.main_window.get_flow_graph().is_valid() and not self.get_page().get_proc()
Actions.FLOW_GRAPH_GEN.set_sensitive(sensitive)
Actions.FLOW_GRAPH_EXEC.set_sensitive(sensitive)
Actions.FLOW_GRAPH_KILL.set_sensitive(self.get_page().get_proc() is not None)
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