def _on_item_state_changed(self, item):
if self._updating:
return
block = item.data(0, QtCore.Qt.UserRole).block
assert isinstance(item, QtWidgets.QTreeWidgetItem)
item_state = not item.isExpanded()
block_state = TextBlockHelper.get_fold_trigger_state(block)
if item_state != block_state:
self._updating = True
self._folding_panel.toggle_fold_trigger(block)
self._updating = False
def _on_item_state_changed(self, item):
if self._updating:
return
block = item.data(0, QtCore.Qt.UserRole).block
assert isinstance(item, QtWidgets.QTreeWidgetItem)
item_state = not item.isExpanded()
block_state = TextBlockHelper.get_fold_trigger_state(block)
if item_state != block_state:
self._updating = True
self._folding_panel.toggle_fold_trigger(block)
self._updating = False
def _highlight_surrounding_scopes(self, block):
"""
Highlights the scopes surrounding the current fold scope.
:param block: Block that starts the current fold scope.
"""
scope = FoldScope(block)
if (self._current_scope is None or
self._current_scope.get_range() != scope.get_range()):
self._current_scope = scope
self._clear_scope_decos()
# highlight surrounding parent scopes with a darker color
start, end = scope.get_range()
if not TextBlockHelper.get_fold_trigger_state(block):
self._add_scope_decorations(block, start, end)
def _on_item_state_changed(self, item):
if self._updating:
return
if item == self._root_item:
item_state = not item.isExpanded()
if item_state:
QtCore.QTimer.singleShot(
1, self._editor.folding_panel.collapse_all)
else:
QtCore.QTimer.singleShot(
1, self._editor.folding_panel.expand_all)
else:
block = item.data(0, QtCore.Qt.UserRole).block
assert isinstance(item, QtWidgets.QTreeWidgetItem)
item_state = not item.isExpanded()
block_state = TextBlockHelper.get_fold_trigger_state(block)
if item_state != block_state:
self._editor.folding_panel.toggle_fold_trigger(block)
def paintEvent(self, event):
# Paints the fold indicators and the possible fold region background
# on the folding panel.
super(FoldingPanel, self).paintEvent(event)
painter = QtGui.QPainter(self)
# Draw background over the selected non collapsed fold region
if self._mouse_over_line is not None:
block = self.editor.document().findBlockByNumber(
self._mouse_over_line)
try:
self._draw_fold_region_background(block, painter)
except ValueError:
pass
# Draw fold triggers
for top_position, line_number, block in self.editor.visible_blocks:
if TextBlockHelper.is_fold_trigger(block):
collapsed = TextBlockHelper.get_fold_trigger_state(block)
mouse_over = self._mouse_over_line == line_number
self._draw_fold_indicator(
top_position, mouse_over, collapsed, painter)
if collapsed:
# check if the block already has a decoration, it might
# have been folded by the parent editor/document in the
# case of cloned editor
for deco in self._block_decos:
if deco.block == block:
# no need to add a deco, just go to the next block
break
else:
self._add_fold_decoration(block, FoldScope(block))
else:
for deco in self._block_decos:
# check if the block decoration has been removed, it
# might have been unfolded by the parent
# editor/document in the case of cloned editor
if deco.block == block:
# remove it and
self._block_decos.remove(deco)
self.editor.decorations.remove(deco)
del deco
break
def convert(name, editor, to_collapse):
ti = QtWidgets.QTreeWidgetItem()
ti.setText(0, name.name)
ti.setIcon(0, QtGui.QIcon(name.icon))
name.block = editor.document().findBlockByNumber(name.line)
ti.setData(0, QtCore.Qt.UserRole, name)
block_data = name.block.userData()
if block_data is None:
block_data = TextBlockUserData()
name.block.setUserData(block_data)
block_data.tree_item = ti
if to_collapse is not None and \
TextBlockHelper.get_fold_trigger_state(name.block):
to_collapse.append(ti)
for ch in name.children:
ti_ch, to_collapse = convert(ch, editor, to_collapse)
if ti_ch:
ti.addChild(ti_ch)
return ti, to_collapse
def convert(name, editor, to_collapse):
ti = QtWidgets.QTreeWidgetItem()
ti.setText(0, name.name)
ti.setIcon(0, QtGui.QIcon(name.icon))
name.block = editor.document().findBlockByNumber(name.line)
ti.setData(0, QtCore.Qt.UserRole, name)
block_data = name.block.userData()
if block_data is None:
block_data = TextBlockUserData()
name.block.setUserData(block_data)
block_data.tree_item = ti
if to_collapse is not None and \
TextBlockHelper.get_fold_trigger_state(name.block):
to_collapse.append(ti)
for ch in name.children:
ti_ch, to_collapse = convert(ch, editor, to_collapse)
if ti_ch:
ti.addChild(ti_ch)
return ti, to_collapse
def _convert_name(self, name, editor):
ti = QtWidgets.QTreeWidgetItem()
ti.setText(0, name.name)
ti.setIcon(0, QtGui.QIcon(ICONS[name.node_type]))
ti.setToolTip(0, name.description)
name.block = editor.document().findBlockByNumber(name.line)
ti.setData(0, QtCore.Qt.UserRole, name)
block_data = name.block.userData()
if block_data is None:
block_data = TextBlockUserData()
name.block.setUserData(block_data)
block_data.tree_item = ti
if TextBlockHelper.get_fold_trigger_state(name.block):
self._to_collapse.append(ti)
for child in name.children:
ti_ch = self._convert_name(child, editor)
ti.addChild(ti_ch)
return ti
