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path: root/src/gui/tasks/table/widget.py
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from PyQt5 import QtWidgets
from PyQt5.QtCore import Qt

import db.tasks
import gui.tasks.signal
import gui.tasks.table.menu
import gui.tasks.table.model
import gui.tasks.dialog
from model.task import Task, ValidTaskForm

class Widget(QtWidgets.QTableView):

    def __init__(self, database, parent, add_task_signal):
        super().__init__(parent)

        self._database = database
        self._update_task_signal = gui.tasks.signal.UpdateTask()

        tasks = db.tasks.get(self._database.cursor())
        table_model = gui.tasks.table.model.TableModel(tasks)

        self.setModel(table_model)
        self.sortByColumn(
            gui.tasks.table.model.default_sort[0],
            gui.tasks.table.model.default_sort[1])
        self.setSortingEnabled(True)
        self.setSelectionBehavior(QtWidgets.QTableView.SelectRows)
        self.horizontalHeader().setStretchLastSection(True)
        self.resizeColumns()

        self.doubleClicked.connect(lambda index: self.on_double_click(index.row()))

        # Menu
        self.setContextMenuPolicy(Qt.CustomContextMenu)
        self.customContextMenuRequested.connect(lambda position: gui.tasks.table.menu.open(self._database, self, self._update_task_signal, position))

        add_task_signal.get().connect(lambda task: self.insert(task))
        self._update_task_signal.get().connect(lambda row, task: self.update(row, task))

    def insert(self, task):
        self.model().insert_task(self.horizontalHeader(), task)
        self.resizeColumns()

    def update(self, row, task):
        row = self.model().update_task(self.horizontalHeader(), row, task)
        self.selectRow(row)
        self.resizeColumns()

    def resizeColumns(self):
        for column in range(gui.tasks.table.model.columns):
            self.resizeColumnToContents(column)

    def keyPressEvent(self, event):
        super().keyPressEvent(event)
        if event.key() in (Qt.Key_Return, Qt.Key_Enter):
            rows = self.get_selected_rows()
            if len(rows) == 1:
                row = rows[0]
                task = self.model().get_at(row)
                gui.tasks.dialog.update(
                        self._database, self, self._update_task_signal, row, task).exec_()
        elif event.key() == Qt.Key_Delete:
            rows = self.get_selected_rows()
            gui.tasks.dialog.show_delete(self._database, self, rows)

    def get_selected_rows(self):
        return list(set([index.row() for index in self.selectedIndexes()]))

    def on_double_click(self, row: int):
        task = self.model().get_at(row)
        gui.tasks.dialog.update(self._database, self, self._update_task_signal, row, task).exec_()