nodeguy/src/examples/modelview_3_changingmodel.ts
2021-08-22 09:48:17 +02:00

43 lines
1.0 KiB
TypeScript

import { ItemDataRole, QAbstractTableModel, QModelIndex, QTableView, QVariant } from '..';
function main(): void {
const tableView = new QTableView();
const model = new MyModel();
tableView.setModel(model);
tableView.show();
setInterval(() => {
model.timerHit();
}, 1000);
(global as any).win = tableView;
}
class MyModel extends QAbstractTableModel {
rowCount(parent = new QModelIndex()): number {
return 2;
}
columnCount(parent = new QModelIndex()): number {
return 3;
}
data(index: QModelIndex, role = ItemDataRole.DisplayRole): QVariant {
const row = index.row();
const col = index.column();
if (role == ItemDataRole.DisplayRole && row == 0 && col == 0) {
return new QVariant('' + new Date().toTimeString());
}
return new QVariant();
}
timerHit(): void {
const topLeft = this.createIndex(0, 0);
this.emitDataChanged(topLeft, topLeft, [ItemDataRole.DisplayRole]);
}
}
main();