// deletes the selected task when the button is pressed
@FXML
private void deleteTask(ActionEvent e) {
ToDoList selectedList = todoListView.getSelectionModel().getSelectedItem();
Task toDelete = incompleteTaskListView.getSelectionModel().getSelectedItem();
if (!selectedList.getIncompleteTaskList().remove(toDelete)) {
System.err.println("Task not deleted");
}
}
// function adds a listner to todoListView's selected item so that the user selected todo list can
// be tracked and
// completeTaskListView and incompleteTaskListView can be updated with selected todo list's
// corresponding tasks
private void setSelectedToDoListListener() {
ObservableList<ToDoList> selectedToDoListTask =
todoListView.getSelectionModel().getSelectedItems();
// listener to monitor change in selected To Do list
selectedToDoListTask.addListener(
(Observable e) -> {
ToDoList selectedToDo = todoListView.getSelectionModel().getSelectedItem();
// if an item is selected
if (selectedToDo != null) {
if (toDoListTasksInfoVBox.disabledProperty().get()) {
toDoListTasksInfoVBox.disableProperty().set(false);
}
// set incompleteTaskListView to selected item's incomplete task list
incompleteTaskListView.itemsProperty().setValue(selectedToDo.getIncompleteTaskList());
// set completeTaskListView to selected item's complete task list
completeTaskListView.itemsProperty().setValue(selectedToDo.getCompleteTaskList());
incompleteTaskListView.requestFocus();
incompleteTaskListView.getSelectionModel().clearSelection();
} else {
// if no item is selected
incompleteTaskListView.setItems(null);
completeTaskListView.setItems(null);
toDoListTasksInfoVBox.disableProperty().set(true);
taskInfoVBox.disableProperty().set(true);
}
});
}
// saves the task information from taskInfoVBox form to the task passed in as argument
private void saveTaskInfo(Task task) {
// to track if the task's attributes have been changed
boolean differentTaskName = false, differentDueDate = false, differentPriority = false;
if (task == null) {
return;
}
// if different title
if (!task.getTaskTitle().equals(taskNameTextField.getText())) differentTaskName = true;
// if different due date
if (task.getTaskDueDate() == null) {
if (taskDueDatePicker.getValue() != null) {
differentDueDate = true;
}
} else {
if (taskDueDatePicker.getValue() == null) {
differentDueDate = true;
}
if (taskDueDatePicker.getValue() != null) {
if (!(task.getTaskDueDate().isEqual(taskDueDatePicker.getValue()))) differentDueDate = true;
}
}
int currentTaskPriority = task.getPriority();
// if no priority selected for the task
if (priority_toggle_group.getSelectedToggle() == null) {
if (currentTaskPriority != 0) {
differentPriority = true;
}
} else {
// if different priority
if (currentTaskPriority != (int) priority_toggle_group.getSelectedToggle().getUserData())
differentPriority = true;
}
// if task attributes have been changed, replace current task with new task with updated task
// attributes
if (differentTaskName || differentDueDate || differentPriority) {
Task replacementTask = new Task();
replacementTask.setTaskTitle(taskNameTextField.getText());
replacementTask.setTaskDueDate(taskDueDatePicker.getValue());
if (priority_toggle_group.getSelectedToggle() == null) {
replacementTask.setPriority(0);
} else {
replacementTask.setPriority((int) priority_toggle_group.getSelectedToggle().getUserData());
}
replacementTask.setSubTasks(task.getSubTasks());
replacementTask.setNote(taskNoteTextArea.getText());
int currentListIndex = -1, currentTaskIndex = -1; // to track current index
int replacementListIndex = -1,
replacementTaskIndex = -1; // to track index where replacement task will placed at
found:
{
for (ToDoList currentList : toDoListModel) {
currentListIndex++;
currentTaskIndex = -1;
for (Task currentTask : currentList.getIncompleteTaskList()) {
currentTaskIndex++;
// if task's unique ID matches current task, assign the current task's list index and
// task index to the replacement index variables
// and break out of the loop
if (currentTask.getUniqueID() == task.getUniqueID()) {
replacementListIndex = currentListIndex;
replacementTaskIndex = currentTaskIndex;
break found;
}
}
}
}
// if found the task to replace with
if (replacementListIndex != -1 && replacementTaskIndex != -1) {
toDoListModel
.get(replacementListIndex)
.getIncompleteTaskList()
.set(replacementTaskIndex, replacementTask);
// if task to be replaced is the first task in the first to do list, select the replaced
// task and update
// incompleteTaskListView
// code below help to get around a bug in selection model for list view
if (replacementListIndex == 0 && replacementTaskIndex == 0) {
todoListView.getSelectionModel().select(replacementListIndex);
incompleteTaskListView.getSelectionModel().select(replacementListIndex);
}
}
}
// if task's priority, name and due date have not been changed, then only update the task's (one
// that is passed in as argument) note
else {
task.setNote(taskNoteTextArea.getText());
}
}