def _on_node_changed_end(self, model, nodes):
# maintain proper expansion
for node in nodes:
if node == self._master_node:
for child in node.get_children():
if self.is_node_expanded(child):
path = get_path_from_node(
self.model, child,
self.rich_model.get_node_column_pos())
self.expand_row(path, False)
else:
try:
path = get_path_from_node(
self.model, node,
self.rich_model.get_node_column_pos())
except:
path = None
if path is not None:
parent = node.get_parent()
# NOTE: parent may lose expand state if it has one child
# therefore, we should expand parent if it exists and is
# visible (i.e. len(path)>1) in treeview
if (parent and self.is_node_expanded(parent) and
len(path) > 1):
self.expand_row(path[:-1], False)
if self.is_node_expanded(node):
self.expand_row(path, False)
# if nodes still exist, and expanded, try to reselect them
sel_count = 0
selection = self.get_selection()
for node in self.__sel_nodes2:
sel_count += 1
if node.is_valid():
path2 = get_path_from_node(
self.model, node, self.rich_model.get_node_column_pos())
if (path2 is not None and
(len(path2) <= 1 or self.row_expanded(path2[:-1]))):
# reselect and scroll to node
selection.select_path(path2)
# restore scroll
gobject.idle_add(lambda : self.scroll_to_point(*self.__scroll))
# resume emitting selection changes
self.__suppress_sel = False
# emit de-selection
if sel_count == 0:
self.select_nodes([])
def _on_node_changed_end(self, model, nodes):
# maintain proper expansion
for node in nodes:
if node == self._master_node:
for child in node.get_children():
if self.is_node_expanded(child):
path = get_path_from_node(
self.model, child,
self.rich_model.get_node_column_pos())
self.expand_row(path, False)
else:
try:
path = get_path_from_node(
self.model, node,
self.rich_model.get_node_column_pos())
except:
path = None
if path is not None:
parent = node.get_parent()
# NOTE: parent may lose expand state if it has one child
# therefore, we should expand parent if it exists and is
# visible (i.e. len(path)>1) in treeview
if (parent and self.is_node_expanded(parent) and
len(path) > 1):
self.expand_row(path[:-1], False)
if self.is_node_expanded(node):
self.expand_row(path, False)
# if nodes still exist, and expanded, try to reselect them
sel_count = 0
selection = self.get_selection()
for node in self.__sel_nodes2:
sel_count += 1
if node.is_valid():
path2 = get_path_from_node(
self.model, node, self.rich_model.get_node_column_pos())
if (path2 is not None and
(len(path2) <= 1 or self.row_expanded(path2[:-1]))):
# reselect and scroll to node
selection.select_path(path2)
# restore scroll
gobject.idle_add(lambda : self.scroll_to_point(*self.__scroll))
# resume emitting selection changes
self.__suppress_sel = False
# emit de-selection
if sel_count == 0:
self.select_nodes([])
def edit_node(self, page):
path = treemodel.get_path_from_node(
self.model, page, self.rich_model.get_node_column_pos())
if path is None:
# view page first if not in view
self.emit("goto-node", page)
path = treemodel.get_path_from_node(
self.model, page, self.rich_model.get_node_column_pos())
assert path is not None
self.set_cursor_on_cell(path, self.title_column, self.title_text, True)
path, col = self.get_cursor()
self.scroll_to_cell(path)
def edit_node(self, page):
path = treemodel.get_path_from_node(
self.model, page, self.rich_model.get_node_column_pos())
if path is None:
# view page first if not in view
self.emit("goto-node", page)
path = treemodel.get_path_from_node(
self.model, page, self.rich_model.get_node_column_pos())
assert path is not None
self.set_cursor_on_cell(path, self.title_column, self.title_text, True)
path, col = self.get_cursor()
self.scroll_to_cell(path)
def set_node_expanded(self, node, expand):
# don't save the expand state of the master node
if len(treemodel.get_path_from_node(
self.model, node,
self.rich_model.get_node_column_pos())) > 1:
node.set_attr("expanded2", expand)
def on_edit_attr(self, cellrenderertext, path, attr, new_text,
validator=TextRendererValidator()):
"""Callback for completion of title editing"""
# remember editing state
self.editing_path = None
new_text = unicode_gtk(new_text)
# get node being edited
node = self.model.get_value(self.model.get_iter(path), self._node_col)
if node is None:
return
# determine value from new_text, if invalid, ignore it
try:
new_val = validator.parse(new_text)
except:
return
# set new attr and catch errors
try:
node.set_attr(attr, new_val)
except NoteBookError as e:
self.emit("error", e.msg, e)
# reselect node
# need to get path again because sorting may have changed
path = get_path_from_node(self.model, node,
self.rich_model.get_node_column_pos())
if path is not None:
self.set_cursor(path)
gobject.idle_add(lambda: self.scroll_to_cell(path))
self.emit("edit-node", node, attr, new_val)
def set_node_expanded(self, node, expand):
# don't save the expand state of the master node
if len(
treemodel.get_path_from_node(
self.model, node,
self.rich_model.get_node_column_pos())) > 1:
node.set_attr("expanded2", expand)
def append_node(self, node):
# do not allow appending of nodes unless we are masterless
if self.get_master_node() is not None:
return
self.rich_model.append(node)
if node.get_attr("expanded2", False):
self.expand_to_path(treemodel.get_path_from_node(
self.model, node, self.rich_model.get_node_column_pos()))
self.set_sensitive(True)
def append_node(self, node):
# do not allow appending of nodes unless we are masterless
if self.get_master_node() is not None:
return
self.rich_model.append(node)
if node.get_attr("expanded2", False):
self.expand_to_path(
treemodel.get_path_from_node(
self.model, node, self.rich_model.get_node_column_pos()))
self.set_sensitive(True)
def select_nodes(self, nodes):
"""Select nodes in treeview"""
# NOTE: for now only select one node
if len(nodes) > 0:
node = nodes[0]
path = get_path_from_node(self.model, node,
self.rich_model.get_node_column_pos())
if path is not None:
if len(path) > 1:
self.expand_to_path(path[:-1])
self.set_cursor(path)
gobject.idle_add(lambda: self.scroll_to_cell(path))
else:
# unselect all nodes
self.get_selection().unselect_all()
def view_nodes(self, nodes, nested=True):
# TODO: learn how to deactivate expensive sorting
#self.model.set_default_sort_func(None)
#self.model.set_sort_column_id(-1, gtk.SORT_ASCENDING)
# save sorting if a single node was selected
if self._sel_nodes is not None and len(self._sel_nodes) == 1:
self.save_sorting(self._sel_nodes[0])
if len(nodes) > 1:
nested = False
self._sel_nodes = nodes
self.rich_model.set_nested(nested)
# set master node
self.set_master_node(None)
# populate model
roots = nodes
self.rich_model.set_root_nodes(roots)
# load sorting if single node is selected
if len(nodes) == 1:
self.load_sorting(nodes[0], self.model)
# expand rows
for node in roots:
self.expand_to_path(
treemodel.get_path_from_node(
self.model, node, self.rich_model.get_node_column_pos()))
# disable if no roots
if len(roots) == 0:
self.set_sensitive(False)
else:
self.set_sensitive(True)
# update status
self.display_page_count()
self.emit("select-nodes", [])
def view_nodes(self, nodes, nested=True):
# TODO: learn how to deactivate expensive sorting
#self.model.set_default_sort_func(None)
#self.model.set_sort_column_id(-1, gtk.SORT_ASCENDING)
# save sorting if a single node was selected
if self._sel_nodes is not None and len(self._sel_nodes) == 1:
self.save_sorting(self._sel_nodes[0])
if len(nodes) > 1:
nested = False
self._sel_nodes = nodes
self.rich_model.set_nested(nested)
# set master node
self.set_master_node(None)
# populate model
roots = nodes
self.rich_model.set_root_nodes(roots)
# load sorting if single node is selected
if len(nodes) == 1:
self.load_sorting(nodes[0], self.model)
# expand rows
for node in roots:
self.expand_to_path(treemodel.get_path_from_node(
self.model, node, self.rich_model.get_node_column_pos()))
# disable if no roots
if len(roots) == 0:
self.set_sensitive(False)
else:
self.set_sensitive(True)
# update status
self.display_page_count()
self.emit("select-nodes", [])
class KeepNoteBaseTreeView (gtk.TreeView):
"""Base class for treeviews of a NoteBook notes"""
def __init__(self):
gtk.TreeView.__init__(self)
self.model = None
self.rich_model = None
self._notebook = None
self._master_node = None
self.editing = False
self.__sel_nodes = []
self.__sel_nodes2 = []
self.__scroll = (0, 0)
self.__suppress_sel = False
self._node_col = None
self._get_icon = None
self._menu = None
# TODO: style
#print self.style #"vertical-separator"
#print self.style_get_property("vertical-separator")
#style = self.get_modifier_style()
#self.modify_style(style)
#print self.style_get_property("vertical-separator")
# selection
self.get_selection().connect("changed", self.__on_select_changed)
self.get_selection().connect("changed", self.on_select_changed)
# row expand/collapse
self.connect("row-expanded", self._on_row_expanded)
self.connect("row-collapsed", self._on_row_collapsed)
# drag and drop state
self._is_dragging = False # whether drag is in progress
self._drag_count = 0
self._dest_row = None # current drag destition
self._reorder = REORDER_ALL # enum determining the kind of reordering
# that is possible via drag and drop
# region, defined by number of vertical pixels from top and bottom of
# the treeview widget, where drag scrolling will occur
self._drag_scroll_region = 30
# clipboard
self.connect("copy-clipboard", self._on_copy_node)
self.connect("copy-tree-clipboard", self._on_copy_tree)
self.connect("cut-clipboard", self._on_cut_node)
self.connect("paste-clipboard", self._on_paste_node)
# drop and drop events
self.connect("drag-begin", self._on_drag_begin)
self.connect("drag-end", self._on_drag_end)
self.connect("drag-motion", self._on_drag_motion)
self.connect("drag-drop", self._on_drag_drop)
self.connect("drag-data-delete", self._on_drag_data_delete)
self.connect("drag-data-get", self._on_drag_data_get)
self.connect("drag-data-received", self._on_drag_data_received)
# configure drag and drop events
self.enable_model_drag_source(
gtk.gdk.BUTTON1_MASK, [DROP_TREE_MOVE], gtk.gdk.ACTION_MOVE)
self.drag_source_set(
gtk.gdk.BUTTON1_MASK,
[DROP_TREE_MOVE],
gtk.gdk.ACTION_MOVE)
self.enable_model_drag_dest([DROP_TREE_MOVE, DROP_URI],
gtk.gdk.ACTION_MOVE|
gtk.gdk.ACTION_COPY|
gtk.gdk.ACTION_LINK)
self.drag_dest_set(gtk.DEST_DEFAULT_HIGHLIGHT | gtk.DEST_DEFAULT_MOTION,
[DROP_TREE_MOVE, DROP_URI],
gtk.gdk.ACTION_DEFAULT|
gtk.gdk.ACTION_MOVE|
gtk.gdk.ACTION_COPY|
gtk.gdk.ACTION_LINK|
gtk.gdk.ACTION_PRIVATE|
gtk.gdk.ACTION_ASK)
def set_master_node(self, node):
self._master_node = node
if self.rich_model:
self.rich_model.set_master_node(node)
def get_master_node(self):
return self._master_node
def set_notebook(self, notebook):
self._notebook = notebook
# NOTE: not used yet
if self.model:
if hasattr(self.model, "get_model"):
self.model.get_model().set_notebook(notebook)
else:
self.model.set_notebook(notebook)
def set_model(self, model):
"""Set the model for the view"""
# TODO: could group signal IDs into lists, for each detach
# if model already attached, disconnect all of its signals
if self.model is not None:
self.rich_model.disconnect(self.changed_start_id)
self.rich_model.disconnect(self.changed_end_id)
self.rich_model.disconnect(self.insert_id)
self.rich_model.disconnect(self.delete_id)
self.rich_model.disconnect(self.has_child_id)
self._node_col = None
self._get_icon = None
# set new model
self.model = model
self.rich_model = None
gtk.TreeView.set_model(self, self.model)
# set new model
if self.model is not None:
# look to see if model has an inner model (happens when we have
# sorting models)
if hasattr(self.model, "get_model"):
self.rich_model = self.model.get_model()
else:
self.rich_model = model
# init signals for model
self.rich_model.set_notebook(self._notebook)
self.changed_start_id = self.rich_model.connect("node-changed-start",
self._on_node_changed_start)
self.changed_end_id = self.rich_model.connect("node-changed-end",
self._on_node_changed_end)
self._node_col = self.rich_model.get_node_column_pos()
self._get_icon = lambda row: \
self.model.get_value(row, self.rich_model.get_column_by_name("icon").pos)
self.insert_id = self.model.connect("row-inserted",
self.on_row_inserted)
self.delete_id = self.model.connect("row-deleted",
self.on_row_deleted)
self.has_child_id = self.model.connect(
"row-has-child-toggled",
self.on_row_has_child_toggled)
def set_popup_menu(self, menu):
self._menu = menu
def get_popup_menu(self):
return self._menu
def popup_menu(self, x, y, button, time):
"""Display popup menu"""
if self._menu is None:
return
path = self.get_path_at_pos(int(x), int(y))
if path is None:
return False
path = path[0]
if not self.get_selection().path_is_selected(path):
self.get_selection().unselect_all()
self.get_selection().select_path(path)
self._menu.popup(None, None, None, button, time)
self._menu.show()
return True
#=========================================
# model change callbacks
def _on_node_changed_start(self, model, nodes):
# remember which nodes are selected
self.__sel_nodes2 = list(self.__sel_nodes)
# suppress selection changes while nodes are changing
self.__suppress_sel = True
# cancel editing
self.cancel_editing()
# save scrolling
self.__scroll = self.widget_to_tree_coords(0, 0)
def _on_node_changed_end(self, model, nodes):
# maintain proper expansion
for node in nodes:
if node == self._master_node:
for child in node.get_children():
if self.is_node_expanded(child):
path = get_path_from_node(self.model, child, self.rich_model.get_node_column_pos())
self.expand_row(path, False)
else:
try:
path = get_path_from_node(self.model, node,
self.rich_model.get_node_column_pos())
except:
path = None
if path is not None:
parent = node.get_parent()
# NOTE: parent may lose expand state if it has one child
# therefore, we should expand parent if it exists and is
# visible (i.e. len(path)>1) in treeview
if parent and self.is_node_expanded(parent) and \
len(path) > 1:
self.expand_row(path[:-1], False)
if self.is_node_expanded(node):
self.expand_row(path, False)
# if nodes still exist, and expanded, try to reselect them
sel_count = 0
selection = self.get_selection()
for node in self.__sel_nodes2:
sel_count += 1
if node.is_valid():
path2 = get_path_from_node(self.model, node,
self.rich_model.get_node_column_pos())
if (path2 is not None and
(len(path2) <= 1 or self.row_expanded(path2[:-1]))):
# reselect and scroll to node
selection.select_path(path2)
# restore scroll
gobject.idle_add(lambda : self.scroll_to_point(*self.__scroll))
# resume emitting selection changes
self.__suppress_sel = False
# emit de-selection
if sel_count == 0:
self.select_nodes([])
def __on_select_changed(self, treeselect):
"""Keep track of which nodes are selected"""
#model, paths = treeselect.get_selected_rows()
#self.__sel_nodes = [self.model.get_value(self.model.get_iter(path),
# self._node_col)
# for path in paths]
self.__sel_nodes = self.get_selected_nodes()
if self.__suppress_sel:
self.get_selection().stop_emission("changed")
def is_node_expanded(self, node):
# query expansion from nodes
return node.get_attr("expanded", False)
def set_node_expanded(self, node, expand):
# save expansion in node
node.set_attr("expanded", expand)
# TODO: do I notify listeners of expand change
# Will this interfere with on_node_changed callbacks
def _on_row_expanded(self, treeview, it, path):
"""Callback for row expand
Performs smart expansion (remembers children expansion)"""
# save expansion in node
self.set_node_expanded(self.model.get_value(it, self._node_col), True)
# recursively expand nodes that should be expanded
def walk(it):
child = self.model.iter_children(it)
while child:
node = self.model.get_value(child, self._node_col)
if self.is_node_expanded(node):
path = self.model.get_path(child)
self.expand_row(path, False)
walk(child)
child = self.model.iter_next(child)
walk(it)
def _on_row_collapsed(self, treeview, it, path):
# save expansion in node
self.set_node_expanded(self.model.get_value(it, self._node_col), False)
def on_row_inserted(self, model, path, it):
pass
def on_row_deleted(self, model, path):
pass
def on_row_has_child_toggled(self, model, path, it):
pass
def cancel_editing(self):
if self.editing:
self.set_cursor_on_cell(self.editing, None, None, False)
#self.cell_text.stop_editing(True)
#===========================================
# actions
def expand_node(self, node):
"""Expand a node in TreeView"""
path = get_path_from_node(self.model, node,
self.rich_model.get_node_column_pos())
if path is not None:
self.expand_to_path(path)
def collapse_all_beneath(self, path):
"""Collapse all children beneath a path"""
it = self.model.get_iter(path)
def walk(it):
for child in iter_children(self.model, it):
walk(child)
path2 = self.model.get_path(it)
self.collapse_row(path2)
walk(it)
#===========================================
# selection
def select_nodes(self, nodes):
"""Select nodes in treeview"""
# NOTE: for now only select one node
if len(nodes) > 0:
node = nodes[0]
path = get_path_from_node(self.model, node,
self.rich_model.get_node_column_pos())
if path is not None:
if len(path) > 1:
self.expand_to_path(path[:-1])
self.set_cursor(path)
gobject.idle_add(lambda: self.scroll_to_cell(path))
else:
# unselect all nodes
self.get_selection().unselect_all()
def on_select_changed(self, treeselect):
"""Callback for when selection changes"""
nodes = self.get_selected_nodes()
self.emit("select-nodes", nodes)
return True
def get_selected_nodes(self):
"""Returns a list of currently selected nodes"""
iters = self.get_selected_iters()
if len(iters) == 0:
if self.editing:
node = self._get_node_from_path(self.editing)
if node:
return [node]
return []
else:
return [self.model.get_value(it, self._node_col)
for it in iters]
def get_selected_iters(self):
"""Return a list of currently selected TreeIter's"""
iters = []
self.get_selection().selected_foreach(lambda model, path, it:
iters.append(it))
return iters
# TODO: add a reselect if node is deleted
# select next sibling or parent
#============================================
# editing titles
def on_editing_started(self, cellrenderer, editable, path):
"""Callback for start of title editing"""
# remember editing state
self.editing = path
gobject.idle_add(lambda: self.scroll_to_cell(path))
def on_editing_canceled(self, cellrenderer):
"""Callback for canceled of title editing"""
# remember editing state
self.editing = None
def on_edit_title(self, cellrenderertext, path, new_text):
"""Callback for completion of title editing"""
# remember editing state
self.editing = None
new_text = unicode_gtk(new_text)
# get node being edited
node = self.model.get_value(self.model.get_iter(path), self._node_col)
if node is None:
return
# do not allow empty names
if new_text.strip() == "":
return
# set new title and catch errors
if new_text != node.get_title():
try:
node.rename(new_text)
except NoteBookError, e:
self.emit("error", e.msg, e)
# reselect node
# NOTE: I select the root inorder for set_cursor(path) to really take
# effect (gtk seems to ignore a select call if it "thinks" the path
# is selected)
#if self.model.iter_n_children(None) > 0:
# self.set_cursor((0,))
path = get_path_from_node(self.model, node,
self.rich_model.get_node_column_pos())
if path is not None:
self.set_cursor(path)
gobject.idle_add(lambda: self.scroll_to_cell(path))
self.emit("edit-title", node, new_text)
def expand_node(self, node):
"""Expand a node in TreeView"""
path = get_path_from_node(self.model, node,
self.rich_model.get_node_column_pos())
if path is not None:
self.expand_to_path(path)
def edit_node(self, node):
path = treemodel.get_path_from_node(self.model, node,
self.rich_model.get_node_column_pos())
gobject.idle_add(lambda: self.set_cursor_on_cell(path, self.column, self.cell_text, True))
class KeepNoteBaseTreeView (gtk.TreeView):
"""Base class for treeviews of a NoteBook notes"""
def __init__(self):
gtk.TreeView.__init__(self)
self.model = None
self.rich_model = None
self._notebook = None
self._master_node = None
self.editing_path = False
self.__sel_nodes = []
self.__sel_nodes2 = []
self.__scroll = (0, 0)
self.__suppress_sel = False
self._node_col = None
self._get_icon = None
self._get_node = self._get_node_default
self._date_formats = {}
self._menu = None
# special attr's
self._attr_title = "title"
self._attr_icon = "icon"
self._attr_icon_open = "icon_open"
# selection
self.get_selection().connect("changed", self.__on_select_changed)
self.get_selection().connect("changed", self.on_select_changed)
# row expand/collapse
self.connect("row-expanded", self._on_row_expanded)
self.connect("row-collapsed", self._on_row_collapsed)
# drag and drop state
self._is_dragging = False # whether drag is in progress
self._drag_count = 0
self._dest_row = None # current drag destition
self._reorder = REORDER_ALL # enum determining the kind of reordering
# that is possible via drag and drop
# region, defined by number of vertical pixels from top and bottom of
# the treeview widget, where drag scrolling will occur
self._drag_scroll_region = 30
# clipboard
self.connect("copy-clipboard", self._on_copy_node)
self.connect("copy-tree-clipboard", self._on_copy_tree)
self.connect("cut-clipboard", self._on_cut_node)
self.connect("paste-clipboard", self._on_paste_node)
# drop and drop events
self.connect("drag-begin", self._on_drag_begin)
self.connect("drag-end", self._on_drag_end)
self.connect("drag-motion", self._on_drag_motion)
self.connect("drag-drop", self._on_drag_drop)
self.connect("drag-data-delete", self._on_drag_data_delete)
self.connect("drag-data-get", self._on_drag_data_get)
self.connect("drag-data-received", self._on_drag_data_received)
# configure drag and drop events
self.enable_model_drag_source(
gtk.gdk.BUTTON1_MASK, [DROP_TREE_MOVE], gtk.gdk.ACTION_MOVE)
self.drag_source_set(
gtk.gdk.BUTTON1_MASK,
[DROP_TREE_MOVE],
gtk.gdk.ACTION_MOVE)
self.enable_model_drag_dest([DROP_TREE_MOVE, DROP_URI],
gtk.gdk.ACTION_MOVE |
gtk.gdk.ACTION_COPY |
gtk.gdk.ACTION_LINK)
self.drag_dest_set(
gtk.DEST_DEFAULT_HIGHLIGHT | gtk.DEST_DEFAULT_MOTION,
[DROP_TREE_MOVE, DROP_URI],
gtk.gdk.ACTION_DEFAULT |
gtk.gdk.ACTION_MOVE |
gtk.gdk.ACTION_COPY |
gtk.gdk.ACTION_LINK |
gtk.gdk.ACTION_PRIVATE |
gtk.gdk.ACTION_ASK)
def set_master_node(self, node):
self._master_node = node
if self.rich_model:
self.rich_model.set_master_node(node)
def get_master_node(self):
return self._master_node
def set_notebook(self, notebook):
self._notebook = notebook
# NOTE: not used yet
if self.model:
if hasattr(self.model, "get_model"):
self.model.get_model().set_notebook(notebook)
else:
self.model.set_notebook(notebook)
def set_get_node(self, get_node_func=None):
if get_node_func is None:
self._get_node = self._get_node_default
else:
self._get_node = get_node_func
def _get_node_default(self, nodeid):
if self._notebook is None:
return None
return self._notebook.get_node_by_id(nodeid)
def set_model(self, model):
"""Set the model for the view"""
# TODO: could group signal IDs into lists, for each detach
# if model already attached, disconnect all of its signals
if self.model is not None:
self.rich_model.disconnect(self.changed_start_id)
self.rich_model.disconnect(self.changed_end_id)
self.model.disconnect(self.insert_id)
self.model.disconnect(self.delete_id)
self.model.disconnect(self.has_child_id)
self._node_col = None
self._get_icon = None
# set new model
self.model = model
self.rich_model = None
gtk.TreeView.set_model(self, self.model)
# set new model
if self.model is not None:
# look to see if model has an inner model (happens when we have
# sorting models)
if hasattr(self.model, "get_model"):
self.rich_model = self.model.get_model()
else:
self.rich_model = model
# init signals for model
self.rich_model.set_notebook(self._notebook)
self.changed_start_id = self.rich_model.connect(
"node-changed-start", self._on_node_changed_start)
self.changed_end_id = self.rich_model.connect(
"node-changed-end", self._on_node_changed_end)
self._node_col = self.rich_model.get_node_column_pos()
self._get_icon = lambda row: \
self.model.get_value(
row, self.rich_model.get_column_by_name("icon").pos)
self.insert_id = self.model.connect("row-inserted",
self.on_row_inserted)
self.delete_id = self.model.connect("row-deleted",
self.on_row_deleted)
self.has_child_id = self.model.connect(
"row-has-child-toggled", self.on_row_has_child_toggled)
def set_popup_menu(self, menu):
self._menu = menu
def get_popup_menu(self):
return self._menu
def popup_menu(self, x, y, button, time):
"""Display popup menu"""
if self._menu is None:
return
path = self.get_path_at_pos(int(x), int(y))
if path is None:
return False
path = path[0]
if not self.get_selection().path_is_selected(path):
self.get_selection().unselect_all()
self.get_selection().select_path(path)
self._menu.popup(None, None, None, button, time)
self._menu.show()
return True
#========================================
# columns
def clear_columns(self):
for col in reversed(self.get_columns()):
self.remove_column(col)
def get_column_by_attr(self, attr):
for col in self.get_columns():
if col.attr == attr:
return col
return None
def _add_title_render(self, column, attr):
# make sure icon attributes are in model
self._add_model_column(self._attr_icon)
self._add_model_column(self._attr_icon_open)
# add renders
cell_icon = self._add_pixbuf_render(
column, self._attr_icon, self._attr_icon_open)
title_text = self._add_text_render(
column, attr, editable=True,
validator=TextRendererValidator(validate=lambda x: x != ""))
# record reference to title_text renderer
self.title_text = title_text
return cell_icon, title_text
def _add_text_render(self, column, attr, editable=False,
validator=TextRendererValidator()):
# cell renderer text
cell = gtk.CellRendererText()
cell.set_fixed_height_from_font(1)
column.pack_start(cell, True)
column.add_attribute(cell, 'text',
self.rich_model.get_column_by_name(attr).pos)
column.add_attribute(
cell, 'cell-background',
self.rich_model.add_column(
"title_bgcolor", str,
lambda node: node.get_attr("title_bgcolor", None)).pos)
column.add_attribute(
cell, 'foreground',
self.rich_model.add_column(
"title_fgcolor", str,
lambda node: node.get_attr("title_fgcolor", None)).pos)
# set edit callbacks
if editable:
cell.connect("edited", lambda r, p, t: self.on_edit_attr(
r, p, attr, t, validator=validator))
cell.connect("editing-started", lambda r, e, p:
self.on_editing_started(r, e, p, attr, validator))
cell.connect("editing-canceled", self.on_editing_canceled)
cell.set_property("editable", True)
return cell
def _add_pixbuf_render(self, column, attr, attr_open=None):
cell = gtk.CellRendererPixbuf()
column.pack_start(cell, False)
column.add_attribute(cell, 'pixbuf',
self.rich_model.get_column_by_name(attr).pos)
#column.add_attribute(
# cell, 'cell-background',
# self.rich_model.add_column(
# "title_bgcolor", str,
# lambda node: node.get_attr("title_bgcolor", None)).pos)
if attr_open:
column.add_attribute(
cell, 'pixbuf-expander-open',
self.rich_model.get_column_by_name(attr_open).pos)
return cell
def _get_model_column(self, attr, mapfunc=lambda x: x):
col = self.rich_model.get_column_by_name(attr)
if col is None:
self._add_model_column(attr, add_sort=False, mapfunc=mapfunc)
col = self.rich_model.get_column_by_name(attr)
return col
def get_col_type(self, datatype):
if datatype == "string":
return str
elif datatype == "integer":
return int
elif datatype == "float":
return float
elif datatype == "timestamp":
return str
else:
return str
def get_col_mapfunc(self, datatype):
if datatype == "timestamp":
return self.format_timestamp
else:
return lambda x: x
def _add_model_column(self, attr, add_sort=True, mapfunc=lambda x: x):
# get attribute definition from notebook
attr_def = self._notebook.attr_defs.get(attr)
# get datatype
if attr_def is not None:
datatype = attr_def.datatype
default = attr_def.default
else:
datatype = "string"
default = ""
# value fetching
get = lambda node: mapfunc(node.get_attr(attr, default))
# get coltype
mapfunc_sort = lambda x: x
if datatype == "string":
coltype = str
coltype_sort = str
mapfunc_sort = lambda x: x.lower()
elif datatype == "integer":
coltype = int
coltype_sort = int
elif datatype == "float":
coltype = float
coltype_sort = float
elif datatype == "timestamp":
mapfunc = self.format_timestamp
coltype = str
coltype_sort = int
else:
coltype = str
coltype_sort = str
# builtin column types
if attr == self._attr_icon:
coltype = gdk.Pixbuf
coltype_sort = None
get = lambda node: get_node_icon(node, False,
node in self.rich_model.fades)
elif attr == self._attr_icon_open:
coltype = gdk.Pixbuf
coltype_sort = None
get = lambda node: get_node_icon(node, True,
node in self.rich_model.fades)
# get/make model column
col = self.rich_model.get_column_by_name(attr)
if col is None:
col = treemodel.TreeModelColumn(attr, coltype, attr=attr, get=get)
self.rich_model.append_column(col)
# define column sorting
if add_sort and coltype_sort is not None:
attr_sort = attr + "_sort"
col = self.rich_model.get_column_by_name(attr_sort)
if col is None:
get_sort = lambda node: mapfunc_sort(
node.get_attr(attr, default))
col = treemodel.TreeModelColumn(
attr_sort, coltype_sort, attr=attr, get=get_sort)
self.rich_model.append_column(col)
def set_date_formats(self, formats):
"""Sets the date formats of the treemodel"""
self._date_formats = formats
def format_timestamp(self, timestamp):
return (get_str_timestamp(timestamp, formats=self._date_formats)
if timestamp is not None else u"")
#=========================================
# model change callbacks
def _on_node_changed_start(self, model, nodes):
# remember which nodes are selected
self.__sel_nodes2 = list(self.__sel_nodes)
# suppress selection changes while nodes are changing
self.__suppress_sel = True
# cancel editing
self.cancel_editing()
# save scrolling
self.__scroll = self.widget_to_tree_coords(0, 0)
def _on_node_changed_end(self, model, nodes):
# maintain proper expansion
for node in nodes:
if node == self._master_node:
for child in node.get_children():
if self.is_node_expanded(child):
path = get_path_from_node(
self.model, child,
self.rich_model.get_node_column_pos())
self.expand_row(path, False)
else:
try:
path = get_path_from_node(
self.model, node,
self.rich_model.get_node_column_pos())
except:
path = None
if path is not None:
parent = node.get_parent()
# NOTE: parent may lose expand state if it has one child
# therefore, we should expand parent if it exists and is
# visible (i.e. len(path)>1) in treeview
if (parent and self.is_node_expanded(parent) and
len(path) > 1):
self.expand_row(path[:-1], False)
if self.is_node_expanded(node):
self.expand_row(path, False)
# if nodes still exist, and expanded, try to reselect them
sel_count = 0
selection = self.get_selection()
for node in self.__sel_nodes2:
sel_count += 1
if node.is_valid():
path2 = get_path_from_node(
self.model, node, self.rich_model.get_node_column_pos())
if (path2 is not None and
(len(path2) <= 1 or self.row_expanded(path2[:-1]))):
# reselect and scroll to node
selection.select_path(path2)
# restore scroll
gobject.idle_add(lambda: self.scroll_to_point(*self.__scroll))
# resume emitting selection changes
self.__suppress_sel = False
# emit de-selection
if sel_count == 0:
self.select_nodes([])
def __on_select_changed(self, treeselect):
"""Keep track of which nodes are selected"""
self.__sel_nodes = self.get_selected_nodes()
if self.__suppress_sel:
self.get_selection().stop_emission("changed")
def is_node_expanded(self, node):
# query expansion from nodes
return node.get_attr("expanded", False)
def set_node_expanded(self, node, expand):
# save expansion in node
node.set_attr("expanded", expand)
# TODO: do I notify listeners of expand change
# Will this interfere with on_node_changed callbacks
def _on_row_expanded(self, treeview, it, path):
"""Callback for row expand
Performs smart expansion (remembers children expansion)"""
# save expansion in node
self.set_node_expanded(self.model.get_value(it, self._node_col), True)
# recursively expand nodes that should be expanded
def walk(it):
child = self.model.iter_children(it)
while child:
node = self.model.get_value(child, self._node_col)
if self.is_node_expanded(node):
path = self.model.get_path(child)
self.expand_row(path, False)
walk(child)
child = self.model.iter_next(child)
walk(it)
def _on_row_collapsed(self, treeview, it, path):
# save expansion in node
self.set_node_expanded(self.model.get_value(it, self._node_col), False)
def on_row_inserted(self, model, path, it):
pass
def on_row_deleted(self, model, path):
pass
def on_row_has_child_toggled(self, model, path, it):
pass
def cancel_editing(self):
if self.editing_path:
self.set_cursor_on_cell(self.editing_path, None, None, False)
#===========================================
# actions
def expand_node(self, node):
"""Expand a node in TreeView"""
path = get_path_from_node(self.model, node,
self.rich_model.get_node_column_pos())
if path is not None:
self.expand_to_path(path)
def collapse_all_beneath(self, path):
"""Collapse all children beneath a path"""
it = self.model.get_iter(path)
def walk(it):
for child in iter_children(self.model, it):
walk(child)
path2 = self.model.get_path(it)
self.collapse_row(path2)
walk(it)
#===========================================
# selection
def select_nodes(self, nodes):
"""Select nodes in treeview"""
# NOTE: for now only select one node
if len(nodes) > 0:
node = nodes[0]
path = get_path_from_node(self.model, node,
self.rich_model.get_node_column_pos())
if path is not None:
if len(path) > 1:
self.expand_to_path(path[:-1])
self.set_cursor(path)
gobject.idle_add(lambda: self.scroll_to_cell(path))
else:
# unselect all nodes
self.get_selection().unselect_all()
def on_select_changed(self, treeselect):
"""Callback for when selection changes"""
nodes = self.get_selected_nodes()
self.emit("select-nodes", nodes)
return True
def get_selected_nodes(self):
"""Returns a list of currently selected nodes"""
iters = self.get_selected_iters()
if len(iters) == 0:
if self.editing_path:
node = self._get_node_from_path(self.editing_path)
if node:
return [node]
return []
else:
return [self.model.get_value(it, self._node_col)
for it in iters]
def get_selected_iters(self):
"""Return a list of currently selected TreeIter's"""
iters = []
self.get_selection().selected_foreach(lambda model, path, it:
iters.append(it))
return iters
# TODO: add a reselect if node is deleted
# select next sibling or parent
#============================================
# editing attr
def on_editing_started(self, cellrenderer, editable, path, attr,
validator=TextRendererValidator()):
"""Callback for start of title editing"""
# remember editing state
self.editing_path = path
# get node being edited and init gtk.Entry widget
node = self.model.get_value(self.model.get_iter(path), self._node_col)
if node is not None:
val = node.get_attr(attr)
try:
editable.set_text(validator.format(val))
except:
pass
gobject.idle_add(lambda: self.scroll_to_cell(path))
def on_editing_canceled(self, cellrenderer):
"""Callback for canceled of title editing"""
# remember editing state
self.editing_path = None
def on_edit_attr(self, cellrenderertext, path, attr, new_text,
validator=TextRendererValidator()):
"""Callback for completion of title editing"""
# remember editing state
self.editing_path = None
new_text = unicode_gtk(new_text)
# get node being edited
node = self.model.get_value(self.model.get_iter(path), self._node_col)
if node is None:
return
# determine value from new_text, if invalid, ignore it
try:
new_val = validator.parse(new_text)
except:
return
# set new attr and catch errors
try:
node.set_attr(attr, new_val)
except NoteBookError, e:
self.emit("error", e.msg, e)
# reselect node
# need to get path again because sorting may have changed
path = get_path_from_node(self.model, node,
self.rich_model.get_node_column_pos())
if path is not None:
self.set_cursor(path)
gobject.idle_add(lambda: self.scroll_to_cell(path))
self.emit("edit-node", node, attr, new_val)
