MainWindow 0 0 350 564 MainWindow 261 110 51 21 2 36 10 100 110 113 26 12 150 231 71 260 150 71 71 18 2 36 10 260 80 58 18 TextLabel 0 360 80 80 18 + Backspace 90 360 80 80 18 - Backspace 180 360 80 80 18 / Backspace 270 360 80 80 18 = Backspace 12 250 326 100 18 Qt::LayoutDirection::LeftToRight false 0 0 0 350 23 Calculator Programming