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authorSimon Poirier <simpoir@gmail.com>2009-10-24 21:18:52 (GMT)
committer Simon Poirier <simpoir@gmail.com>2009-10-24 21:18:52 (GMT)
commita6e312c9f0e1bd690963191bb5331eaabb06b431 (patch)
treea9f8589299de7bf09291e94e533005dc0cee7f10 /tutorius
parent704e35494433a11ecdcf675fff7cfccaa8bbd2ec (diff)
creator with viewer and non-linear editing.
Conflicts: tutorius/creator.py
Diffstat (limited to 'tutorius')
-rw-r--r--tutorius/addon.py14
-rw-r--r--tutorius/creator.py611
-rw-r--r--tutorius/overlayer.py4
-rw-r--r--tutorius/properties.py10
-rw-r--r--tutorius/ui/creator.glade209
-rw-r--r--tutorius/viewer.py406
6 files changed, 1077 insertions, 177 deletions
diff --git a/tutorius/addon.py b/tutorius/addon.py
index 15612c8..7ac68f7 100644
--- a/tutorius/addon.py
+++ b/tutorius/addon.py
@@ -38,6 +38,9 @@ import logging
PREFIX = __name__+"s"
PATH = re.sub("addon\\.py[c]$", "", __file__)+"addons"
+TYPE_ACTION = 'action'
+TYPE_EVENT = 'event'
+
_cache = None
def _reload_addons():
@@ -47,9 +50,11 @@ def _reload_addons():
mod = __import__(PREFIX+'.'+re.sub("\\.py$", "", addon), {}, {}, [""])
if hasattr(mod, "__action__"):
_cache[mod.__action__['name']] = mod.__action__
+ mod.__action__['type'] = TYPE_ACTION
continue
if hasattr(mod, "__event__"):
_cache[mod.__event__['name']] = mod.__event__
+ mod.__event__['type'] = TYPE_EVENT
def create(name, *args, **kwargs):
global _cache
@@ -78,4 +83,13 @@ def get_addon_meta(name):
_reload_addons()
return _cache[name]
+def get_name_from_type(typ):
+ global _cache
+ if not _cache:
+ _reload_addons()
+ for addon in _cache.keys():
+ if typ == _cache[addon]['class']:
+ return addon
+ return None
+
# vim:set ts=4 sts=4 sw=4 et:
diff --git a/tutorius/creator.py b/tutorius/creator.py
index d56fc72..d8f3d98 100644
--- a/tutorius/creator.py
+++ b/tutorius/creator.py
@@ -22,16 +22,20 @@ the activity itself.
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import gtk.gdk
+import gtk.glade
import gobject
from gettext import gettext as T
-from sugar.graphics.toolbutton import ToolButton
+import os
+from sugar.graphics import icon
+import copy
-from sugar.tutorius import overlayer, gtkutils, actions, vault, properties, addon
-from sugar.tutorius import filters
+from sugar.tutorius import overlayer, gtkutils, actions, bundler, properties, addon
+from sugar.tutorius import filters, __path__
from sugar.tutorius.services import ObjectStore
from sugar.tutorius.linear_creator import LinearCreator
from sugar.tutorius.core import Tutorial
+from sugar.tutorius import viewer
class Creator(object):
"""
@@ -47,80 +51,157 @@ class Creator(object):
"""
self._activity = activity
if not tutorial:
- self._tutorial = LinearCreator()
+ self._tutorial = FiniteStateMachine('Untitled')
+ self._state = State(name='INIT')
+ self._tutorial.add_state(self._state)
+ self._state_counter = 1
else:
self._tutorial = tutorial
+ # TODO load existing tutorial; unused yet
self._action_panel = None
self._current_filter = None
self._intro_mask = None
self._intro_handle = None
- self._state_bubble = overlayer.TextBubble(self._tutorial.state_name)
allocation = self._activity.get_allocation()
self._width = allocation.width
self._height = allocation.height
self._selected_widget = None
self._eventmenu = None
+ self.tuto = None
+ self._guid = None
self._hlmask = overlayer.Rectangle(None, (1.0, 0.0, 0.0, 0.5))
self._activity._overlayer.put(self._hlmask, 0, 0)
- self._activity._overlayer.put(self._state_bubble,
- self._width/2-self._state_bubble.allocation.width/2, 0)
- self._state_bubble.show()
-
dlg_width = 300
dlg_height = 70
sw = gtk.gdk.screen_width()
sh = gtk.gdk.screen_height()
- self._tooldialog = gtk.Window()
- self._tooldialog.set_title("Tutorius tools")
- self._tooldialog.set_transient_for(self._activity)
- self._tooldialog.set_decorated(True)
- self._tooldialog.set_resizable(False)
- self._tooldialog.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_UTILITY)
- self._tooldialog.set_destroy_with_parent(True)
- self._tooldialog.set_deletable(False)
- self._tooldialog.set_size_request(dlg_width, dlg_height)
-
- toolbar = gtk.Toolbar()
- for tool in addon.list_addons():
- meta = addon.get_addon_meta(tool)
- toolitem = ToolButton(meta['icon'])
- toolitem.set_tooltip(meta['display_name'])
- toolitem.connect("clicked", self._add_action_cb, tool)
- toolbar.insert(toolitem, -1)
- toolitem = ToolButton("go-next")
- toolitem.connect("clicked", self._add_step_cb)
- toolitem.set_tooltip("Add Step")
- toolbar.insert(toolitem, -1)
- toolitem = ToolButton("stop")
- toolitem.connect("clicked", self._cleanup_cb)
- toolitem.set_tooltip("End Tutorial")
- toolbar.insert(toolitem, -1)
- self._tooldialog.add(toolbar)
- self._tooldialog.show_all()
- # simpoir: I suspect the realized widget is a tiny bit larger than
- # it should be, thus the -10.
- self._tooldialog.move(sw-10-dlg_width, sh-dlg_height)
-
- self._propedit = EditToolBox(self._activity)
-
- def _evfilt_cb(self, menuitem, event_name, *args):
+
+ self._propedit = ToolBox(self._activity)
+ self._propedit.tree.signal_autoconnect({
+ 'on_quit_clicked': self._cleanup_cb,
+ 'on_save_clicked': self.save,
+ 'on_action_activate': self._add_action_cb,
+ 'on_event_activate': self._add_event_cb,
+ })
+ self._propedit.window.move(
+ gtk.gdk.screen_width()-self._propedit.window.get_allocation().width,
+ 100)
+
+
+ self._overview = viewer.Viewer(self._tutorial, self)
+ self._overview.win.set_transient_for(self._activity)
+
+ self._overview.win.move(0, gtk.gdk.screen_height()- \
+ self._overview.win.get_allocation().height)
+
+ def delete_action(self, action):
+ """
+ Removes the first instance of specified action from the tutorial.
+
+ @param action: the action object to remove from the tutorial
+ @returns: True if successful, otherwise False.
+ """
+ state = self._tutorial.get_state_by_name("INIT")
+
+ while True:
+ state_actions = state.get_action_list()
+ for fsm_action in state_actions:
+ if fsm_action is action:
+ state.clear_actions()
+ if state is self._state:
+ fsm_action.exit_editmode()
+ state_actions.remove(fsm_action)
+ self.set_insertion_point(state.name)
+ for keep_action in state_actions:
+ state.add_action(keep_action)
+ return True
+
+ ev_list = state.get_event_filter_list()
+ if ev_list:
+ state = self._tutorial.get_state_by_name(
+ ev_list[0].get_next_state())
+ continue
+
+ return False
+
+ def delete_state(self):
+ """
+ Remove current state.
+ Limitation: The last state cannot be removed, as it doesn't have
+ any transitions to remove anyway.
+
+ @returns: True if successful, otherwise False.
+ """
+ if not self._state.get_event_filter_list():
+ # last state cannot be removed
+ return False
+
+ state = self._tutorial.get_state_by_name("INIT")
+ ev_list = state.get_event_filter_list()
+ if state == self._state:
+ next_state = self._tutorial.get_state_by_name(
+ ev_list[0].get_next_state())
+ self.set_insertion_point(next_state.name)
+ self._tutorial.remove_state(state.name)
+ self._tutorial.remove_state(next_state.name)
+ next_state.name = "INIT"
+ self._tutorial.add_state(next_state)
+ return True
+
+ # loop to repair links from deleted state
+ while ev_list:
+ next_state = self._tutorial.get_state_by_name(
+ ev_list[0].get_next_state())
+ if next_state is self._state:
+ # the tutorial will flush the event filters. We'll need to
+ # clear and re-add them.
+ ev_list = copy.copy(ev_list)
+ self._tutorial.remove_state(self._state.name)
+ state.clear_event_filters()
+ ev_list[0].set_next_state(
+ next_state.get_event_filter_list()[0].get_next_state())
+ for ev in ev_list:
+ state.add_event_filter(ev)
+
+ self.set_insertion_point(ev_list[0].get_next_state())
+ return True
+
+ state = next_state
+ ev_list = state.get_event_filter_list()
+ return False
+
+ def get_insertion_point(self):
+ return self._state.name
+
+ def set_insertion_point(self, state_name):
+ for action in self._state.get_action_list():
+ action.exit_editmode()
+ self._state = self._tutorial.get_state_by_name(state_name)
+ self._overview.win.queue_draw()
+ state_actions = self._state.get_action_list()
+ for action in state_actions:
+ action.enter_editmode()
+ action._drag._eventbox.connect_after(
+ "button-release-event", self._action_refresh_cb, action)
+
+ if state_actions:
+ self._propedit.action = state_actions[0]
+ else:
+ self._propedit.action = None
+
+
+ def _evfilt_cb(self, menuitem, event):
"""
This will get called once the user has selected a menu item from the
event filter popup menu. This should add the correct event filter
to the FSM and increment states.
"""
- self.introspecting = False
- eventfilter = addon.create('GtkWidgetEventFilter',
- object_id=self._selected_widget,
- event_name=event_name)
# undo actions so they don't persist through step editing
- for action in self._tutorial.current_actions:
+ for action in self._state.get_action_list():
action.exit_editmode()
- self._tutorial.event(eventfilter)
- self._state_bubble.label = self._tutorial.state_name
self._hlmask.covered = None
self._propedit.action = None
self._activity.queue_draw()
@@ -159,67 +240,67 @@ class Creator(object):
self._eventmenu.popup(None, None, None, evt.button, evt.time)
self._activity.queue_draw()
- def set_intropecting(self, value):
- """
- Set whether creator is in UI introspection mode. Setting this will
- connect necessary handlers.
- @param value True to setup introspection handlers.
- """
- if bool(value) ^ bool(self._intro_mask):
- if value:
- self._intro_mask = overlayer.Mask(catch_events=True)
- self._intro_handle = self._intro_mask.connect_after(
- "button-press-event", self._intro_cb)
- self._activity._overlayer.put(self._intro_mask, 0, 0)
- else:
- self._intro_mask.catch_events = False
- self._intro_mask.disconnect(self._intro_handle)
- self._intro_handle = None
- self._activity._overlayer.remove(self._intro_mask)
- self._intro_mask = None
-
- def get_introspecting(self):
- """
- Whether creator is in UI introspection (catch all event) mode.
- @return True if introspection handlers are connected, or False if not.
- """
- return bool(self._intro_mask)
-
- introspecting = property(fset=set_intropecting, fget=get_introspecting)
-
- def _add_action_cb(self, widget, actiontype):
+ def _add_action_cb(self, widget, path):
"""Callback for the action creation toolbar tool"""
- action = addon.create(actiontype)
- if isinstance(action, actions.Action):
- action.enter_editmode()
- self._tutorial.action(action)
- # FIXME: replace following with event catching
- action._drag._eventbox.connect_after(
- "button-release-event", self._action_refresh_cb, action)
+ action_type = self._propedit._actions_icons[path][2]
+ action = addon.create(action_type)
+ action.enter_editmode()
+ self._state.add_action(action)
+ # FIXME: replace following with event catching
+ action._drag._eventbox.connect_after(
+ "button-release-event", self._action_refresh_cb, action)
+ self._overview.win.queue_draw()
+
+ def _add_event_cb(self, widget, path):
+ """Callback for the event creation toolbar tool"""
+ event_type = self._propedit._events_icons[path][2]
+ event = addon.create(event_type)
+ addonname = type(event).__name__
+ meta = addon.get_addon_meta(addonname)
+ for propname in meta['mandatory_props']:
+ prop = getattr(type(event), propname)
+ if isinstance(prop, properties.TUAMProperty):
+ selector = WidgetSelector(self._activity)
+ setattr(event, propname, selector.select())
+ elif isinstance(prop, properties.TGtkSignal):
+ try:
+ dlg = SignalInputDialog(self._activity,
+ text="Mandatory property",
+ field=propname,
+ addr=event.object_id)
+ setattr(event, propname, dlg.pop())
+ except AttributeError:
+ pass
+ elif isinstance(prop, properties.TStringProperty):
+ dlg = TextInputDialog(self._activity,
+ text="Mandatory property",
+ field=propname)
+ setattr(event, propname, dlg.pop())
+ else:
+ raise NotImplementedError()
+
+ event_filters = self._state.get_event_filter_list()
+ if event_filters:
+ # linearize tutorial by inserting state
+ new_state = State(name=str(self._state_counter))
+ self._state_counter += 1
+ self._state.clear_event_filters()
+ for evt_filt in event_filters:
+ new_state.add_event_filter(evt_filt)
+ event.set_next_state(new_state.name)
+ # blocks are shifted, full redraw is necessary
+ self._overview.win.queue_draw()
else:
- addonname = type(action).__name__
- meta = addon.get_addon_meta(addonname)
- had_introspect = False
- for propname in meta['mandatory_props']:
- prop = getattr(type(action), propname)
- if isinstance(prop, properties.TUAMProperty):
- had_introspect = True
- self.introspecting = True
- elif isinstance(prop, properties.TStringProperty):
- dlg = TextInputDialog(text="Mandatory property",
- field=propname)
- setattr(action, propname, dlg.pop())
- elif isinstance(prop, properties.TIntProperty):
- dlg = TextInputDialog(text="Mandatory property",
- field=propname)
- setattr(action, propname, int(dlg.pop()))
- else:
- raise NotImplementedError()
-
- # FIXME: hack to reuse previous introspection code
- if not had_introspect:
- self._tutorial.event(action)
+ # append empty event only if edit not inserting between events
+ event.set_next_state(str(self._state_counter))
+ new_state = State(name=str(self._state_counter))
+ self._state_counter += 1
+
+ self._state.add_event_filter(event)
+ self._tutorial.add_state(new_state)
+ self._overview.win.queue_draw()
+ self.set_insertion_point(new_state.name)
def _action_refresh_cb(self, widget, evt, action):
"""
@@ -234,44 +315,54 @@ class Creator(object):
"button-release-event", self._action_refresh_cb, action)
self._propedit.action = action
- def _add_step_cb(self, widget):
- """Callback for the "add step" tool"""
- self.introspecting = True
+ self._overview.win.queue_draw()
def _cleanup_cb(self, *args):
"""
Quit editing and cleanup interface artifacts.
"""
- self.introspecting = False
- eventfilter = filters.EventFilter()
# undo actions so they don't persist through step editing
- for action in self._tutorial.current_actions:
+ for action in self._state.get_action_list():
action.exit_editmode()
- self._tutorial.event(eventfilter)
-
- dlg = TextInputDialog(text=T("Enter a tutorial title."),
- field=T("Title"))
- tutorialName = ""
- while not tutorialName: tutorialName = dlg.pop()
- dlg.destroy()
- # prepare tutorial for serialization
- tuto = Tutorial(tutorialName, self._tutorial.fsm)
- bundle = vault.TutorialBundler()
- bundle.write_metadata_file(tuto)
- bundle.write_fsm(self._tutorial.fsm)
+ dialog = gtk.MessageDialog(
+ parent=self._activity,
+ flags=gtk.DIALOG_MODAL,
+ type=gtk.MESSAGE_QUESTION,
+ buttons=gtk.BUTTONS_YES_NO,
+ message_format=T('Do you want to save before stopping edition?'))
+ do_save = dialog.run()
+ dialog.destroy()
+ if do_save == gtk.RESPONSE_YES:
+ self.save()
# remove UI remains
self._hlmask.covered = None
self._activity._overlayer.remove(self._hlmask)
- self._activity._overlayer.remove(self._state_bubble)
self._hlmask.destroy()
self._hlmask = None
- self._tooldialog.destroy()
self._propedit.destroy()
+ self._overview.destroy()
self._activity.queue_draw()
del self._activity._creator
+ def save(self, widget=None):
+ if not self.tuto:
+ dlg = TextInputDialog(self._activity,
+ text=T("Enter a tutorial title."),
+ field=T("Title"))
+ tutorialName = ""
+ while not tutorialName: tutorialName = dlg.pop()
+ dlg.destroy()
+
+ # prepare tutorial for serialization
+ self.tuto = Tutorial(tutorialName, self._tutorial)
+ bundle = bundler.TutorialBundler(self._guid)
+ self._guid = bundle.Guid
+ bundle.write_metadata_file(self.tuto)
+ bundle.write_fsm(self._tutorial)
+
+
def launch(*args, **kwargs):
"""
Launch and attach a creator to the currently running activity.
@@ -281,46 +372,53 @@ class Creator(object):
activity._creator = Creator(activity)
launch = staticmethod(launch)
-class EditToolBox(gtk.Window):
- """Helper toolbox class for managing action properties"""
- def __init__(self, parent, action=None):
- """
- Create the property edition toolbox and display it.
+class ToolBox(object):
+ def __init__(self, parent):
+ super(ToolBox, self).__init__()
+ self.__parent = parent
+ glade_file = os.path.join(__path__[0], 'ui', 'creator.glade')
+ self.tree = gtk.glade.XML(glade_file)
+ self.window = self.tree.get_widget('mainwindow')
+ self._propbox = self.tree.get_widget('propbox')
- @param parent the parent window of this toolbox, usually an activity
- @param action the action to introspect/edit
- """
- gtk.Window.__init__(self)
- self._action = None
- self.__parent = parent # private avoid gtk clash
-
- self.set_title("Action Properties")
- self.set_transient_for(parent)
- self.set_decorated(True)
- self.set_resizable(False)
- self.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_UTILITY)
- self.set_destroy_with_parent(True)
- self.set_deletable(False)
- self.set_size_request(200, 400)
-
- self._vbox = gtk.VBox()
- self.add(self._vbox)
- propwin = gtk.ScrolledWindow()
- propwin.props.hscrollbar_policy = gtk.POLICY_AUTOMATIC
- propwin.props.vscrollbar_policy = gtk.POLICY_AUTOMATIC
- self._vbox.pack_start(propwin)
- self._propbox = gtk.VBox(spacing=10)
- propwin.add(self._propbox)
-
- self.action = action
+ self.window.set_transient_for(parent)
- sw = gtk.gdk.screen_width()
- sh = gtk.gdk.screen_height()
-
- self.show_all()
- self.move(sw-10-200, (sh-400)/2)
-
- def refresh(self):
+ self._action = None
+ self._actions_icons = gtk.ListStore(str, gtk.gdk.Pixbuf, str, str)
+ self._actions_icons.set_sort_column_id(0, gtk.SORT_ASCENDING)
+ self._events_icons = gtk.ListStore(str, gtk.gdk.Pixbuf, str, str)
+ self._events_icons.set_sort_column_id(0, gtk.SORT_ASCENDING)
+
+ for toolname in addon.list_addons():
+ meta = addon.get_addon_meta(toolname)
+ iconfile = gtk.Image()
+ iconfile.set_from_file(icon.get_icon_file_name(meta['icon']))
+ img = iconfile.get_pixbuf()
+ label = format_multiline(meta['display_name'])
+
+ if meta['type'] == addon.TYPE_ACTION:
+ self._actions_icons.append((label, img, toolname, meta['display_name']))
+ else:
+ self._events_icons.append((label, img, toolname, meta['display_name']))
+
+ iconview1 = self.tree.get_widget('iconview1')
+ iconview1.set_model(self._actions_icons)
+ iconview1.set_text_column(0)
+ iconview1.set_pixbuf_column(1)
+ iconview1.set_tooltip_column(3)
+ iconview2 = self.tree.get_widget('iconview2')
+ iconview2.set_model(self._events_icons)
+ iconview2.set_text_column(0)
+ iconview2.set_pixbuf_column(1)
+ iconview2.set_tooltip_column(3)
+
+ self.window.show()
+
+ def destroy(self):
+ """ clean and free the toolbox """
+ self.window.destroy()
+
+ def refresh_properties(self):
"""Refresh property values from the selected action."""
if self._action is None:
return
@@ -348,12 +446,10 @@ class EditToolBox(gtk.Window):
def set_action(self, action):
"""Setter for the action property."""
if self._action is action:
- self.refresh()
+ self.refresh_properties()
return
- parent = self._propbox.get_parent()
- parent.remove(self._propbox)
- self._propbox = gtk.VBox(spacing=10)
- parent.add(self._propbox)
+ for old_prop in self._propbox.get_children():
+ self._propbox.remove(old_prop)
self._action = action
if action is None:
@@ -388,8 +484,8 @@ class EditToolBox(gtk.Window):
propwdg.set_text(str(propval))
row.pack_end(propwdg)
self._propbox.pack_start(row, expand=False)
- self._vbox.show_all()
- self.refresh()
+ self._propbox.show_all()
+ self.refresh_properties()
def get_action(self):
"""Getter for the action property"""
@@ -414,9 +510,143 @@ class EditToolBox(gtk.Window):
setattr(action, propname, widget.get_value_as_int())
self.__parent._creator._action_refresh_cb(None, None, action)
+
+class WidgetSelector(object):
+ """
+ Allow selecting a widget from within a window without interrupting the
+ flow of the current call.
+
+ The selector will run on the specified window until either a widget
+ is selected or abort() gets called.
+ """
+ def __init__(self, window):
+ super(WidgetSelector, self).__init__()
+ self.window = window
+ self._intro_mask = None
+ self._intro_handle = None
+ self._select_handle = None
+ self._prelight = None
+
+ def select(self):
+ """
+ Starts selecting a widget, by grabbing control of the mouse and
+ highlighting hovered widgets until one is clicked.
+ @returns: a widget address or None
+ """
+ if not self._intro_mask:
+ self._prelight = None
+ self._intro_mask = overlayer.Mask(catch_events=True)
+ self._select_handle = self._intro_mask.connect_after(
+ "button-press-event", self._end_introspect)
+ self._intro_handle = self._intro_mask.connect_after(
+ "motion-notify-event", self._intro_cb)
+ self.window._overlayer.put(self._intro_mask, 0, 0)
+ self.window._overlayer.queue_draw()
+
+ while bool(self._intro_mask) and not gtk.main_iteration():
+ pass
+
+ return gtkutils.raddr_lookup(self._prelight)
+
+ def _end_introspect(self, widget, evt):
+ if evt.type == gtk.gdk.BUTTON_PRESS and self._prelight:
+ self._intro_mask.catch_events = False
+ self._intro_mask.disconnect(self._intro_handle)
+ self._intro_handle = None
+ self._intro_mask.disconnect(self._select_handle)
+ self._select_handle = None
+ self.window._overlayer.remove(self._intro_mask)
+ self._intro_mask = None
+ # for some reason, gtk may not redraw after this unless told to.
+ self.window.queue_draw()
+
+ def _intro_cb(self, widget, evt):
+ """
+ Callback for capture of widget events, when in introspect mode.
+ """
+ # widget has focus, let's hilight it
+ win = gtk.gdk.display_get_default().get_window_at_pointer()
+ if not win:
+ return
+ click_wdg = win[0].get_user_data()
+ if not click_wdg.is_ancestor(self.window._overlayer):
+ # as popups are not (yet) supported, it would break
+ # badly if we were to play with a widget not in the
+ # hierarchy.
+ return
+ for hole in self._intro_mask.pass_thru:
+ self._intro_mask.mask(hole)
+ self._intro_mask.unmask(click_wdg)
+ self._prelight = click_wdg
+
+ self.window.queue_draw()
+
+ def abort(self):
+ """
+ Ends the selection. The control will return to the select() caller
+ with a return value of None, as selection was aborted.
+ """
+ self._intro_mask.catch_events = False
+ self._intro_mask.disconnect(self._intro_handle)
+ self._intro_handle = None
+ self._intro_mask.disconnect(self._select_handle)
+ self._select_handle = None
+ self.window._overlayer.remove(self._intro_mask)
+ self._intro_mask = None
+ self._prelight = None
+
+class SignalInputDialog(gtk.MessageDialog):
+ def __init__(self, parent, text, field, addr):
+ """
+ Create a gtk signal selection dialog.
+
+ @param parent: the parent window this dialog should stay over.
+ @param text: the title of the dialog.
+ @param field: the field description of the dialog.
+ @param addr: the widget address from which to fetch signal list.
+ """
+ gtk.MessageDialog.__init__(self, parent,
+ gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT,
+ gtk.MESSAGE_QUESTION,
+ gtk.BUTTONS_OK,
+ None)
+ self.set_markup(text)
+ self.model = gtk.ListStore(str)
+ widget = gtkutils.find_widget(parent, addr)
+ for signal_name in gobject.signal_list_names(widget):
+ self.model.append(row=(signal_name,))
+ self.entry = gtk.ComboBox(self.model)
+ cell = gtk.CellRendererText()
+ self.entry.pack_start(cell)
+ self.entry.add_attribute(cell, 'text', 0)
+ hbox = gtk.HBox()
+ lbl = gtk.Label(field)
+ hbox.pack_start(lbl, False)
+ hbox.pack_end(self.entry)
+ self.vbox.pack_end(hbox, True, True)
+ self.show_all()
+
+ def pop(self):
+ """
+ Show the dialog. It will run in it's own loop and return control
+ to the caller when a signal has been selected.
+
+ @returns: a signal name or None if no signal was selected
+ """
+ self.run()
+ self.hide()
+ iter = self.entry.get_active_iter()
+ if iter:
+ text = self.model.get_value(iter, 0)
+ return text
+ return None
+
+ def _dialog_done_cb(self, entry, response):
+ self.response(response)
+
class TextInputDialog(gtk.MessageDialog):
- def __init__(self, text, field):
- gtk.MessageDialog.__init__(self, None,
+ def __init__(self, parent, text, field):
+ gtk.MessageDialog.__init__(self, parent,
gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT,
gtk.MESSAGE_QUESTION,
gtk.BUTTONS_OK,
@@ -440,4 +670,35 @@ class TextInputDialog(gtk.MessageDialog):
def _dialog_done_cb(self, entry, response):
self.response(response)
+def format_multiline(text, length=10, lines=3, line_separator='\n'):
+ """
+ Reformat a text to fit in a small space.
+
+ @param length: maximum char per line
+ @param lines: maximum number of lines
+ """
+ words = text.split(' ')
+ line = list()
+ return_val = []
+ linelen = 0
+
+ for word in words:
+ t_len = linelen+len(word)
+ if t_len < length:
+ line.append(word)
+ linelen = t_len+1 # count space
+ else:
+ if len(return_val)+1 < lines:
+ return_val.append(' '.join(line))
+ line = list()
+ linelen = 0
+ line.append(word)
+ else:
+ return_val.append(' '.join(line+['...']))
+ return line_separator.join(return_val)
+
+ return_val.append(' '.join(line))
+ return line_separator.join(return_val)
+
+
# vim:set ts=4 sts=4 sw=4 et:
diff --git a/tutorius/overlayer.py b/tutorius/overlayer.py
index 0a3d542..b967739 100644
--- a/tutorius/overlayer.py
+++ b/tutorius/overlayer.py
@@ -58,7 +58,7 @@ class Overlayer(gtk.Layout):
@param overlayed widget to be overlayed. Will be resized to full size.
"""
def __init__(self, overlayed=None):
- gtk.Layout.__init__(self)
+ super(Overlayer, self).__init__()
self._overlayed = overlayed
if overlayed:
@@ -83,7 +83,7 @@ class Overlayer(gtk.Layout):
if hasattr(child, "draw_with_context"):
# if the widget has the CanvasDrawable protocol, use it.
child.no_expose = True
- gtk.Layout.put(self, child, x, y)
+ super(Overlayer, self).put(child, x, y)
# be sure to redraw or the overlay may not show
self.queue_draw()
diff --git a/tutorius/properties.py b/tutorius/properties.py
index cbb2ae3..68e6091 100644
--- a/tutorius/properties.py
+++ b/tutorius/properties.py
@@ -331,6 +331,16 @@ class TAddonProperty(TutoriusProperty):
return super(TAddonProperty, self).validate(value)
raise ValueError("Expected TPropContainer instance as TaddonProperty value")
+class TGtkSignal(TutoriusProperty):
+ """
+ Represents a gobject signal for a GTK widget.
+ """
+ def __init__(self, value):
+ TutoriusProperty.__init__(self)
+ self.type = "gtk-signal"
+
+ self.default = self.validate(value)
+
class TAddonListProperty(TutoriusProperty):
"""
Reprensents an embedded tutorius Addon List Component.
diff --git a/tutorius/ui/creator.glade b/tutorius/ui/creator.glade
new file mode 100644
index 0000000..1c9669d
--- /dev/null
+++ b/tutorius/ui/creator.glade
@@ -0,0 +1,209 @@
+<?xml version="1.0"?>
+<glade-interface>
+ <!-- interface-requires gtk+ 2.16 -->
+ <!-- interface-naming-policy project-wide -->
+ <widget class="GtkWindow" id="mainwindow">
+ <property name="width_request">300</property>
+ <property name="height_request">500</property>
+ <property name="title" translatable="yes">Toolbox</property>
+ <property name="resizable">False</property>
+ <property name="window_position">center-on-parent</property>
+ <property name="default_width">200</property>
+ <property name="default_height">500</property>
+ <property name="destroy_with_parent">True</property>
+ <property name="skip_taskbar_hint">True</property>
+ <property name="skip_pager_hint">True</property>
+ <property name="focus_on_map">False</property>
+ <property name="deletable">False</property>
+ <signal name="destroy" handler="on_mainwindow_destroy"/>
+ <child>
+ <widget class="GtkVBox" id="vbox1">
+ <property name="visible">True</property>
+ <property name="orientation">vertical</property>
+ <property name="spacing">5</property>
+ <child>
+ <widget class="GtkHButtonBox" id="hbuttonbox1">
+ <property name="visible">True</property>
+ <property name="spacing">5</property>
+ <property name="layout_style">start</property>
+ <child>
+ <widget class="GtkButton" id="button2">
+ <property name="label">gtk-save</property>
+ <property name="visible">True</property>
+ <property name="can_focus">True</property>
+ <property name="receives_default">True</property>
+ <property name="use_stock">True</property>
+ <signal name="clicked" handler="on_save_clicked"/>
+ </widget>
+ <packing>
+ <property name="expand">False</property>
+ <property name="fill">False</property>
+ <property name="position">0</property>
+ </packing>
+ </child>
+ <child>
+ <widget class="GtkButton" id="button4">
+ <property name="label">gtk-quit</property>
+ <property name="visible">True</property>
+ <property name="can_focus">True</property>
+ <property name="receives_default">True</property>
+ <property name="use_stock">True</property>
+ <signal name="clicked" handler="on_quit_clicked"/>
+ </widget>
+ <packing>
+ <property name="expand">False</property>
+ <property name="fill">False</property>
+ <property name="position">1</property>
+ </packing>
+ </child>
+ </widget>
+ <packing>
+ <property name="expand">False</property>
+ <property name="fill">False</property>
+ <property name="position">0</property>
+ </packing>
+ </child>
+ <child>
+ <widget class="GtkScrolledWindow" id="scrolledwindow1">
+ <property name="visible">True</property>
+ <property name="can_focus">True</property>
+ <property name="hscrollbar_policy">never</property>
+ <property name="vscrollbar_policy">automatic</property>
+ <property name="shadow_type">in</property>
+ <child>
+ <widget class="GtkViewport" id="viewport1">
+ <property name="visible">True</property>
+ <property name="resize_mode">queue</property>
+ <child>
+ <widget class="GtkVBox" id="vbox2">
+ <property name="visible">True</property>
+ <property name="orientation">vertical</property>
+ <child>
+ <widget class="GtkExpander" id="expander1">
+ <property name="visible">True</property>
+ <property name="can_focus">True</property>
+ <property name="expanded">True</property>
+ <child>
+ <widget class="GtkIconView" id="iconview1">
+ <property name="visible">True</property>
+ <property name="can_focus">True</property>
+ <property name="columns">2</property>
+ <property name="row_spacing">0</property>
+ <property name="column_spacing">0</property>
+ <property name="item_padding">0</property>
+ <signal name="item_activated" handler="on_action_activate"/>
+ </widget>
+ </child>
+ <child>
+ <widget class="GtkLabel" id="label3">
+ <property name="visible">True</property>
+ <property name="label" translatable="yes">actions</property>
+ </widget>
+ <packing>
+ <property name="type">label_item</property>
+ </packing>
+ </child>
+ </widget>
+ <packing>
+ <property name="expand">False</property>
+ <property name="position">0</property>
+ </packing>
+ </child>
+ <child>
+ <widget class="GtkExpander" id="expander2">
+ <property name="visible">True</property>
+ <property name="can_focus">True</property>
+ <property name="expanded">True</property>
+ <child>
+ <widget class="GtkIconView" id="iconview2">
+ <property name="visible">True</property>
+ <property name="can_focus">True</property>
+ <property name="columns">2</property>
+ <property name="row_spacing">0</property>
+ <property name="column_spacing">0</property>
+ <property name="item_padding">0</property>
+ <signal name="item_activated" handler="on_event_activate"/>
+ </widget>
+ </child>
+ <child>
+ <widget class="GtkLabel" id="label2">
+ <property name="visible">True</property>
+ <property name="label" translatable="yes">events</property>
+ </widget>
+ <packing>
+ <property name="type">label_item</property>
+ </packing>
+ </child>
+ </widget>
+ <packing>
+ <property name="expand">False</property>
+ <property name="fill">False</property>
+ <property name="position">1</property>
+ </packing>
+ </child>
+ </widget>
+ </child>
+ </widget>
+ </child>
+ </widget>
+ <packing>
+ <property name="position">1</property>
+ </packing>
+ </child>
+ <child>
+ <widget class="GtkVBox" id="propbox">
+ <property name="visible">True</property>
+ <property name="orientation">vertical</property>
+ <property name="spacing">10</property>
+ <child>
+ <placeholder/>
+ </child>
+ </widget>
+ <packing>
+ <property name="expand">False</property>
+ <property name="padding">5</property>
+ <property name="position">2</property>
+ </packing>
+ </child>
+ <child>
+ <widget class="GtkHButtonBox" id="hbuttonbox2">
+ <property name="visible">True</property>
+ <property name="spacing">5</property>
+ <property name="layout_style">start</property>
+ <child>
+ <widget class="GtkButton" id="button1">
+ <property name="label">gtk-media-record</property>
+ <property name="can_focus">True</property>
+ <property name="receives_default">True</property>
+ <property name="use_stock">True</property>
+ </widget>
+ <packing>
+ <property name="expand">False</property>
+ <property name="fill">False</property>
+ <property name="position">0</property>
+ </packing>
+ </child>
+ <child>
+ <widget class="GtkButton" id="button3">
+ <property name="label">gtk-media-stop</property>
+ <property name="can_focus">True</property>
+ <property name="receives_default">True</property>
+ <property name="use_stock">True</property>
+ </widget>
+ <packing>
+ <property name="expand">False</property>
+ <property name="fill">False</property>
+ <property name="position">1</property>
+ </packing>
+ </child>
+ </widget>
+ <packing>
+ <property name="expand">False</property>
+ <property name="fill">False</property>
+ <property name="position">3</property>
+ </packing>
+ </child>
+ </widget>
+ </child>
+ </widget>
+</glade-interface>
diff --git a/tutorius/viewer.py b/tutorius/viewer.py
new file mode 100644
index 0000000..e0ae4a9
--- /dev/null
+++ b/tutorius/viewer.py
@@ -0,0 +1,406 @@
+# Copyright (C) 2009, Tutorius.org
+#
+# This program 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.
+#
+# This program 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 St, Fifth Floor, Boston, MA 02110-1301 USA
+"""
+This module renders a widget containing a graphical representation
+of a tutorial and acts as a creator proxy as it has some editing
+functionality.
+"""
+import sys
+
+import gtk, gtk.gdk
+import cairo
+from math import pi as PI
+PI2 = PI/2
+
+import rsvg
+
+from sugar.bundle import activitybundle
+from sugar.tutorius import addon
+from sugar.graphics import icon
+from sugar.tutorius.filters import EventFilter
+from sugar.tutorius.actions import Action
+import os
+
+# FIXME ideally, apps scale correctly and we should use proportional positions
+X_WIDTH = 800
+X_HEIGHT = 600
+ACTION_WIDTH = 100
+ACTION_HEIGHT = 70
+
+# block look
+BLOCK_PADDING = 5
+BLOCK_WIDTH = 100
+BLOCK_CORNERS = 10
+BLOCK_INNER_PAD = 10
+
+SNAP_WIDTH = BLOCK_WIDTH - BLOCK_PADDING - BLOCK_INNER_PAD*2
+SNAP_HEIGHT = SNAP_WIDTH*X_HEIGHT/X_WIDTH
+SNAP_SCALE = float(SNAP_WIDTH)/X_WIDTH
+
+class Viewer(object):
+ """
+ Renders a tutorial as a sequence of blocks, each block representing either
+ an action or an event (transition).
+
+ Current Viewer implementation lacks viewport management;
+ having many objects in a tutorial will not render properly.
+ """
+ def __init__(self, tutorial, creator):
+ super(Viewer, self).__init__()
+
+ self._tutorial = tutorial
+ self._creator = creator
+ self.alloc = None
+ self.click_pos = None
+ self.drag_pos = None
+ self.selection = []
+
+ self.win = gtk.Window(gtk.WINDOW_TOPLEVEL)
+ self.win.set_size_request(400, 200)
+ self.win.set_gravity(gtk.gdk.GRAVITY_SOUTH_WEST)
+ self.win.show()
+ self.win.set_deletable(False)
+ self.win.move(0, 0)
+
+ #vbox = gtk.VBox()
+ vbox = gtk.ScrolledWindow()
+ self.win.add(vbox)
+
+ canvas = gtk.DrawingArea()
+ #vbox.pack_start(canvas)
+ vbox.add_with_viewport(canvas) # temp
+ canvas.set_app_paintable(True)
+ canvas.connect_after("expose-event", self.on_viewer_expose, tutorial._states)
+ canvas.add_events(gtk.gdk.BUTTON_PRESS_MASK \
+ |gtk.gdk.BUTTON_MOTION_MASK \
+ |gtk.gdk.BUTTON_RELEASE_MASK \
+ |gtk.gdk.KEY_PRESS_MASK)
+ canvas.connect('button-press-event', self._on_click)
+ # drag-select disabled, for now
+ #canvas.connect('motion-notify-event', self._on_drag)
+ canvas.connect('button-release-event', self._on_drag_end)
+ canvas.connect('key-press-event', self._on_key_press)
+
+ canvas.set_flags(gtk.HAS_FOCUS|gtk.CAN_FOCUS)
+ canvas.grab_focus()
+
+ #self.scroll = gtk.HScrollbar()
+ #vbox.pack_end(self.scroll, False)
+
+ self.win.show_all()
+ canvas.set_size_request(2048, 180) # FIXME
+
+ def destroy(self):
+ self.win.destroy()
+
+
+ def _paint_state(self, ctx, states):
+ """
+ Paints a tutorius fsm state in a cairo context.
+ Final context state will be shifted by the size of the graphics.
+ """
+ block_width = BLOCK_WIDTH - BLOCK_PADDING
+ block_max_height = self.alloc.height
+
+ new_insert_point = None
+ cur_state = 'INIT'
+
+ # FIXME: get app when we have a model that supports it
+ cur_app = 'Calculate'
+ app_start = ctx.get_matrix()
+ try:
+ state = states[cur_state]
+ except KeyError:
+ state = None
+
+ while state:
+ new_app = 'Calculate'
+ if new_app != cur_app:
+ ctx.save()
+ ctx.set_matrix(app_start)
+ self._render_app_hints(ctx, cur_app)
+ ctx.restore()
+ app_start = ctx.get_matrix()
+ ctx.translate(BLOCK_PADDING, 0)
+ cur_app = new_app
+
+ action_list = state.get_action_list()
+ if action_list:
+ local_height = (block_max_height - BLOCK_PADDING)/len(action_list) - BLOCK_PADDING
+ ctx.save()
+ for action in action_list:
+ origin = tuple(ctx.get_matrix())[-2:]
+ if self.click_pos and \
+ self.click_pos[0]-BLOCK_WIDTH<origin[0] and \
+ self.drag_pos[0]>origin[0]:
+ self.selection.append(action)
+ self.render_action(ctx, block_width, local_height, action)
+ ctx.translate(0, local_height+BLOCK_PADDING)
+
+ ctx.restore()
+ ctx.translate(BLOCK_WIDTH, 0)
+
+ # insertion cursor painting made from two opposed triangles
+ # joined by a line.
+ if state.name == self._creator.get_insertion_point():
+ ctx.save()
+ bp2 = BLOCK_PADDING/2
+ ctx.move_to(-bp2, 0)
+ ctx.line_to(-BLOCK_PADDING-bp2, -BLOCK_PADDING)
+ ctx.line_to(bp2, -BLOCK_PADDING)
+ ctx.line_to(-bp2, 0)
+
+ ctx.line_to(-bp2, block_max_height-2*BLOCK_PADDING)
+ ctx.line_to(bp2, block_max_height-BLOCK_PADDING)
+ ctx.line_to(-BLOCK_PADDING-bp2, block_max_height-BLOCK_PADDING)
+ ctx.line_to(-bp2, block_max_height-2*BLOCK_PADDING)
+
+ ctx.line_to(-bp2, BLOCK_PADDING)
+ ctx.set_source_rgb(1.0, 1.0, 0.0)
+ ctx.stroke_preserve()
+ ctx.fill()
+ ctx.restore()
+
+
+ event_list = state.get_event_filter_list()
+ if event_list:
+ local_height = (block_max_height - BLOCK_PADDING)/len(event_list) - BLOCK_PADDING
+ ctx.save()
+ for event in event_list:
+ origin = tuple(ctx.get_matrix())[-2:]
+ if self.click_pos and \
+ self.click_pos[0]-BLOCK_WIDTH<origin[0] and \
+ self.drag_pos[0]>origin[0]:
+ self.selection.append(event)
+ self.render_event(ctx, block_width, local_height, event)
+ ctx.translate(0, local_height+BLOCK_PADDING)
+
+ ctx.restore()
+ ctx.translate(BLOCK_WIDTH, 0)
+
+ # FIXME point to next state in state, as it would highlight
+ # the "happy path".
+ cur_state = event_list[0].get_next_state()
+
+ if (not new_insert_point) and self.click_pos:
+ origin = tuple(ctx.get_matrix())[-2:]
+ if self.click_pos[0]<origin[0]:
+ new_insert_point = state
+
+ if event_list:
+ try:
+ state = states[cur_state]
+ except KeyError:
+ break
+ yield True
+ else:
+ break
+
+ ctx.set_matrix(app_start)
+ self._render_app_hints(ctx, cur_app)
+
+ if self.click_pos:
+ if not new_insert_point:
+ new_insert_point = state
+
+ self._creator.set_insertion_point(new_insert_point.name)
+
+ yield False
+
+ def _render_snapshot(self, ctx, elem):
+ ctx.set_source_rgba(1.0, 1.0, 1.0, 0.5)
+ ctx.rectangle(0, 0, SNAP_WIDTH, SNAP_HEIGHT)
+ ctx.fill_preserve()
+ ctx.stroke()
+
+ if hasattr(elem, 'position'):
+ pos = elem.position
+ # FIXME this size approximation is fine, but I believe we could
+ # do better.
+ ctx.scale(SNAP_SCALE, SNAP_SCALE)
+ ctx.rectangle(pos[0], pos[1], ACTION_WIDTH, ACTION_HEIGHT)
+ ctx.fill_preserve()
+ ctx.stroke()
+
+ def _render_app_hints(self, ctx, appname):
+ ctx.set_source_rgb(0.0, 0.0, 0.0)
+ ctx.set_dash((1,1,0,0), 1)
+ ctx.move_to(0, 0)
+ ctx.line_to(0, self.alloc.height)
+ ctx.stroke()
+ ctx.set_dash(tuple(), 1)
+
+ bundle_path = os.getenv("SUGAR_BUNDLE_PATH")
+ if bundle_path:
+ icon_path = activitybundle.ActivityBundle(bundle_path).get_icon()
+ icon = rsvg.Handle(icon_path)
+ ctx.save()
+ ctx.translate(-15, 0)
+ ctx.scale(0.5, 0.5)
+ icon_surf = icon.render_cairo(ctx)
+ ctx.restore()
+
+
+ def render_action(self, ctx, width, height, action):
+ ctx.save()
+ inner_width = width-(BLOCK_CORNERS<<1)
+ inner_height = height-(BLOCK_CORNERS<<1)
+
+ paint_border = ctx.rel_line_to
+ filling = cairo.LinearGradient(0, 0, 0, inner_height)
+ if action not in self.selection:
+ filling.add_color_stop_rgb(0.0, 0.7, 0.7, 1.0)
+ filling.add_color_stop_rgb(1.0, 0.1, 0.1, 0.8)
+ else:
+ filling.add_color_stop_rgb(0.0, 0.4, 0.4, 0.8)
+ filling.add_color_stop_rgb(1.0, 0.0, 0.0, 0.5)
+ tracing = cairo.LinearGradient(0, 0, 0, inner_height)
+ tracing.add_color_stop_rgb(0.0, 1.0, 1.0, 1.0)
+ tracing.add_color_stop_rgb(1.0, 0.2, 0.2, 0.2)
+
+ ctx.move_to(BLOCK_CORNERS, 0)
+ paint_border(inner_width, 0)
+ ctx.arc(inner_width+BLOCK_CORNERS, BLOCK_CORNERS, BLOCK_CORNERS, -PI2, 0.0)
+ ctx.arc(inner_width+BLOCK_CORNERS, inner_height+BLOCK_CORNERS, BLOCK_CORNERS, 0.0, PI2)
+ ctx.arc(BLOCK_CORNERS, inner_height+BLOCK_CORNERS, BLOCK_CORNERS, PI2, PI)
+ ctx.arc(BLOCK_CORNERS, BLOCK_CORNERS, BLOCK_CORNERS, -PI, -PI2)
+
+ ctx.set_source(tracing)
+ ctx.stroke_preserve()
+ ctx.set_source(filling)
+ ctx.fill()
+
+ addon_name = addon.get_name_from_type(type(action))
+ # TODO use icon pool
+ icon_name = addon.get_addon_meta(addon_name)['icon']
+ rsvg_icon = rsvg.Handle(icon.get_icon_file_name(icon_name))
+ ctx.save()
+ ctx.translate(BLOCK_INNER_PAD, BLOCK_INNER_PAD)
+ ctx.scale(0.5, 0.5)
+ icon_surf = rsvg_icon.render_cairo(ctx)
+
+ ctx.restore()
+
+ ctx.translate(BLOCK_INNER_PAD, (height-SNAP_HEIGHT)/2)
+ self._render_snapshot(ctx, action)
+
+ ctx.restore()
+
+ def render_event(self, ctx, width, height, event):
+ ctx.save()
+ inner_width = width-(BLOCK_CORNERS<<1)
+ inner_height = height-(BLOCK_CORNERS<<1)
+
+ filling = cairo.LinearGradient(0, 0, 0, inner_height)
+ if event not in self.selection:
+ filling.add_color_stop_rgb(0.0, 1.0, 0.8, 0.6)
+ filling.add_color_stop_rgb(1.0, 1.0, 0.6, 0.2)
+ else:
+ filling.add_color_stop_rgb(0.0, 0.8, 0.6, 0.4)
+ filling.add_color_stop_rgb(1.0, 0.6, 0.4, 0.1)
+ tracing = cairo.LinearGradient(0, 0, 0, inner_height)
+ tracing.add_color_stop_rgb(0.0, 1.0, 1.0, 1.0)
+ tracing.add_color_stop_rgb(1.0, 0.3, 0.3, 0.3)
+
+ ctx.move_to(BLOCK_CORNERS, 0)
+ ctx.rel_line_to(inner_width, 0)
+ ctx.rel_line_to(BLOCK_CORNERS, BLOCK_CORNERS)
+ ctx.rel_line_to(0, inner_height)
+ ctx.rel_line_to(-BLOCK_CORNERS, BLOCK_CORNERS)
+ ctx.rel_line_to(-inner_width, 0)
+ ctx.rel_line_to(-BLOCK_CORNERS, -BLOCK_CORNERS)
+ ctx.rel_line_to(0, -inner_height)
+ ctx.close_path()
+
+ ctx.set_source(tracing)
+ ctx.stroke_preserve()
+ ctx.set_source(filling)
+ ctx.fill()
+
+ addon_name = addon.get_name_from_type(type(event))
+ # TODO use icon pool
+ icon_name = addon.get_addon_meta(addon_name)['icon']
+ rsvg_icon = rsvg.Handle(icon.get_icon_file_name(icon_name))
+ ctx.save()
+ ctx.translate(BLOCK_INNER_PAD, BLOCK_INNER_PAD)
+ ctx.scale(0.5, 0.5)
+ icon_surf = rsvg_icon.render_cairo(ctx)
+
+ ctx.restore()
+
+ ctx.translate(BLOCK_INNER_PAD, (height-SNAP_HEIGHT)/2)
+ self._render_snapshot(ctx, event)
+
+ ctx.restore()
+
+ def on_viewer_expose(self, widget, evt, states):
+ ctx = widget.window.cairo_create()
+ self.alloc = widget.get_allocation()
+ ctx.set_source_pixmap(widget.window,
+ widget.allocation.x,
+ widget.allocation.y)
+
+ #draw no more than our expose event intersects our child
+ region = gtk.gdk.region_rectangle(widget.allocation)
+ r = gtk.gdk.region_rectangle(evt.area)
+ region.intersect(r)
+ ctx.region (region)
+ ctx.clip()
+ ctx.paint()
+
+ ctx.translate(BLOCK_PADDING, BLOCK_PADDING)
+
+ painter = self._paint_state(ctx, states)
+ while painter.next(): pass
+
+ if self.click_pos and self.drag_pos:
+ ctx.set_matrix(cairo.Matrix())
+ ctx.rectangle(self.click_pos[0], self.click_pos[1],
+ self.drag_pos[0]-self.click_pos[0],
+ self.drag_pos[1]-self.click_pos[1])
+ ctx.set_source_rgba(0, 0, 1, 0.5)
+ ctx.fill_preserve()
+ ctx.stroke()
+
+ return False
+
+ def _on_click(self, widget, evt):
+ # the rendering pipeline will work out the click validation process
+ self.drag_pos = None
+ self.drag_pos = self.click_pos = evt.get_coords()
+ widget.queue_draw()
+
+ self.selection = []
+
+ def _on_drag(self, widget, evt):
+ self.drag_pos = evt.get_coords()
+ widget.queue_draw()
+
+ def _on_drag_end(self, widget, evt):
+ self.click_pos = self.drag_pos = None
+ widget.queue_draw()
+
+ def _on_key_press(self, widget, evt):
+ if evt.keyval == gtk.keysyms.BackSpace:
+ # remove selection
+ for selected in self.selection:
+ if isinstance(selected, EventFilter):
+ self._creator.delete_state()
+ else:
+ self._creator.delete_action(selected)
+ widget.queue_draw()
+
+