def _move_scene_item(self, selected_item: QTreeWidgetItem,
direction: Direction) -> None:
# UI Modification
parent = selected_item.parent() # Signage of selected scene
sel_idx = int(selected_item.text(0).split(':')[0])
offset = 0 # Default value
if direction == Direction.DOWN:
offset = +1
elif direction == Direction.UP:
offset = -1
else:
Exception("Direction not provided") # Should NEVER be reached
target_item = parent.child(sel_idx + offset)
target_text = ':'.join(target_item.text(0).split(':')[1:])
sel_text = ':'.join(selected_item.text(0).split(':')[1:])
parent.child(sel_idx).setText(0,
str(sel_idx + offset) + ':' + sel_text)
parent.removeChild(parent.child(sel_idx + offset))
moved_item = QTreeWidgetItem([str(sel_idx) + ':' + target_text])
parent.insertChild(sel_idx, moved_item)
# Data Modification
sgn_id = utils.ui_text_to_id(parent.text(0))
signage = self._sgn_mng.get_signage(sgn_id)
signage.rearrange_scene(sel_idx - 1, sel_idx - 1 +
offset) # Index starts from 0 here
# Update UI status
self.update_ui_component()
def list_item_clicked(self):
get_selected = self.sender().selectedItems()
if get_selected:
item = get_selected[0]
item_text = item.text(0)
if item.parent() is None:
# It is at topmost level
# Selected one is data type
idx = self._widget_idx['type']
data_type_id = utils.ui_text_to_id(item_text)
data_type = self._obj_mng.get_object_type(data_type_id)
self._stacked_widget.widget(idx).load_data_on_ui(data_type)
self._stacked_widget.setCurrentIndex(idx)
else:
if item_text == '+':
item.setSelected(False)
text, ok = QInputDialog.getText(
self, self._res['idDialogTitle'],
self._res['idDialogDescription'])
if ok:
try:
utils.validate_id(text)
except AttributeError:
QMessageBox.warning(
self, self._res['idInvalidTitle'],
self._res['idInvalidDescription'],
QMessageBox.Ok, QMessageBox.Ok)
return # Invalid ID. Do not create signage
data_type_id = utils.ui_text_to_id(
item.parent().text(0))
data_type = self._obj_mng.get_object_type(data_type_id)
self._obj_mng.add_object_value(
ObjectValue(text, data_type, self._obj_mng,
self._mtm_mng))
item.setText(0, text)
item.parent().addChild(QTreeWidgetItem(['+']))
else:
# Selected one is data
idx = self._widget_idx['data']
data_type_id = utils.ui_text_to_id(item.parent().text(0))
data_type = self._obj_mng.get_object_type(data_type_id)
data = self._obj_mng.get_object_value(data_type, item_text)
self._stacked_widget.widget(idx).load_data_on_ui(data)
self._stacked_widget.setCurrentIndex(idx)
def list_item_clicked(self) -> None:
get_selected = self.sender().selectedItems()
if get_selected:
item = get_selected[0]
item_text = item.text(0)
if item.parent() is None:
# It is at topmost level
# Selected one is Scene/Frame
self._template_widget.clear_data_on_ui()
else:
# Selected one is frame/scene
tpl_id = utils.ui_text_to_id(item_text)
if item.parent().text(0) == self._res['frameLabel']:
# Selected one is frame template
tpl = self._tpl_mng.get_frame_template(tpl_id)
else:
# Selected one is scene template
tpl = self._tpl_mng.get_scene_template(tpl_id)
self._template_widget.load_data_on_ui(tpl)
def button_clicked(self) -> None:
button_text = self.sender().text()
scene = self._signage.scenes[self._scene_idx]
if button_text == self._res['deleteButtonText']:
try:
self._signage.remove_scene(
self._signage.scenes[self._scene_idx])
except ReferenceError as e:
QMessageBox.warning(
self, "Can't delete", "This scene can't be deleted. " +
', '.join(e.args[0].keys()) + " reference this",
QMessageBox.Ok, QMessageBox.Ok)
return
self._value_change_handler(utils.ChangeType.DELETE,
str(self._scene_idx))
elif button_text == self._res['saveButtonText']:
# Check is input data valid. If not, do not save it
if not self._tab_data.is_data_valid() or \
not self._tab_transition.is_data_valid() or \
not self._tab_scheduling.is_data_valid():
QMessageBox.warning(self, self._res['dataInvalidTitle'],
self._res['dataInvalidDescription'],
QMessageBox.Ok, QMessageBox.Ok)
return
# Now it's OK to save
# Set scene's template
tpl_id = utils.ui_text_to_id(self._cbox_tpl.currentText())
tpl = self._tpl_mng.get_scene_template(tpl_id)
scene.template = tpl
self._tab_data.save(scene)
self._tab_scheduling.save(scene)
self._tab_transition.save(scene)
# Invoke value change handler to edit QTreeWidgetItem
scene_text = utils.gen_ui_text(tpl.definition.name, tpl.id)
self._value_change_handler(utils.ChangeType.SAVE, scene_text)
elif button_text == self._res['cancelButtonText']:
# Load the previous data
self.load_data_on_ui(self._signage, self._scene_idx)
def button_clicked(self) -> None:
button_text = self.sender().text()
if button_text == self._res['saveButtonText']:
# Check is input data valid. If not, do not save it
if not self._tab_data.is_data_valid():
QMessageBox.warning(self, self._res['dataInvalidTitle'],
self._res['dataInvalidDescription'],
QMessageBox.Ok, QMessageBox.Ok)
return
# Now it's OK to save
# Set frame's template
tpl_id = utils.ui_text_to_id(self._cbox_tpl.currentText())
tpl = self._tpl_mng.get_frame_template(tpl_id)
self._frame.template = tpl
self._tab_data.save(self._frame)
# Invoke value change handler to edit QTreeWidgetItem
frame_text = utils.gen_ui_text(tpl.definition.name, tpl.id)
self._value_change_handler(utils.ChangeType.SAVE, frame_text)
elif button_text == self._res['cancelButtonText']:
# Load the previous data
self.load_data_on_ui(self._frame)
def combobox_changed(self) -> None:
combobox_text = self.sender().currentText()
tpl_id = utils.ui_text_to_id(combobox_text)
tpl = self._tpl_mng.get_frame_template(tpl_id)
self._tab_data.load_ui(tpl)
def _signage_changed(self):
sgn_id = utils.ui_text_to_id(self._cbox_signages.currentText())
if not sgn_id:
return
self._channel.signage = self._sgn_mng.get_signage(sgn_id)
def update_ui_component(self) -> None:
get_selected = self._signage_list.selectedItems()
if get_selected:
item = get_selected[0]
item_text = item.text(0)
if item.parent() is None:
# Selected one is at topmost level
# Signage cannot move up or down, so disable UP/DOWN button
self._btn_up.setEnabled(False)
self._btn_up.setEnabled(False)
if item_text == "+":
item.setSelected(False)
text, ok = QInputDialog.getText(
self, self._res['idDialogTitle'],
self._res['idDialogDescription'])
if ok:
try:
utils.validate_id(text)
except AttributeError:
QMessageBox.warning(
self, self._res['idInvalidTitle'],
self._res['idInvalidDescription'],
QMessageBox.Ok, QMessageBox.Ok)
return # Invalid ID. Do not create signage
initial_scene = self._create_scene()
initial_frame = self._create_frame()
new_signage = Signage(text,
frame=initial_frame,
scenes=[initial_scene])
self._sgn_mng.add_signage(
new_signage) # Add new signage
# Add to UI
signage_text = utils.gen_ui_text(
new_signage.title, new_signage.id)
item.setText(0, signage_text)
frame_tpl = initial_frame.template
frame_text = utils.gen_ui_text(
frame_tpl.definition.name, frame_tpl.id)
frame_item = QTreeWidgetItem(["F:" + frame_text])
item.addChild(frame_item)
scene_tpl = initial_scene.template
scene_text = utils.gen_ui_text(
scene_tpl.definition.name, scene_tpl.id)
scene_item = QTreeWidgetItem(["1:" + scene_text])
item.addChild(scene_item)
item.addChild(QTreeWidgetItem(['+']))
item.setExpanded(True)
# Add + button again
self._signage_list.addTopLevelItem(
QTreeWidgetItem(['+']))
else:
# Selected one is signage
sgn_id = utils.ui_text_to_id(item_text)
signage = self._sgn_mng.get_signage(sgn_id)
idx = self._widget_idx['signage']
self._stacked_widget.widget(idx).load_data_on_ui(signage)
self._stacked_widget.setCurrentIndex(idx)
else:
sgn_id = utils.ui_text_to_id(item.parent().text(0))
signage = self._sgn_mng.get_signage(sgn_id)
if item_text.startswith("F:"):
# Selected one is frame
# Frame cannot move up or down, so disable UP/DOWN button
self._btn_up.setEnabled(False)
self._btn_down.setEnabled(False)
idx = self._widget_idx['frame']
frame = signage.frame
self._stacked_widget.widget(idx).load_data_on_ui(frame)
self._stacked_widget.setCurrentIndex(idx)
elif item_text == '+':
# Add scene to signage
new_scene = self._create_scene()
signage.add_scene(new_scene)
# Add scene to list on UI
# Make current item's text as added scene
parent = item.parent()
num_child = parent.childCount()
scene_tpl = new_scene.template
scene_text = utils.gen_ui_text(scene_tpl.definition.name,
scene_tpl.id)
item.setText(0, str(num_child - 1) + ":" + scene_text)
# Add + button at last
parent.addChild(QTreeWidgetItem(['+']))
self.update_ui_component() # Update UI status
else:
# Selected one is scene
scene_idx = int(item_text.split(':')[0])
# First, scene can be moved
self._btn_up.setEnabled(True)
self._btn_down.setEnabled(True)
if scene_idx == 1:
# Scene at top. Cannot move up
self._btn_up.setEnabled(False)
if scene_idx == len(signage.scenes):
# Scene at bottom. Cannot move down
self._btn_down.setEnabled(False)
idx = self._widget_idx['scene']
self._stacked_widget.widget(idx).load_data_on_ui(
signage, scene_idx - 1)
self._stacked_widget.setCurrentIndex(idx)