the size of the button in GridView does not change

[Idodoqdo]

I want to rotate the button 90 degrees to rotate the text (since the button is custom, I can't access the text directly). I set the following conditions, but the size of the button does not change. Help me fix this

        GridView {
            id: gridOfPult

            Layout.fillHeight: true
            Layout.preferredWidth: parent.width * 0.7


            cellWidth: width / 3
            cellHeight: 40

            ListModel {
                id: pultModel

                ListElement {
                    name: ''
                }

                ListElement {
                    name: '<--'
                    rotationVal : 90
                }

                ListElement {
                    name: ''
                    rotationVal : 0
                }

                ListElement {
                    name: '<--'
                    rotationVal : 0
                }

                ListElement {
                    name: 'Enter'
                    rotationVal : 0
                }

                ListElement {
                    name: '-->'
                    rotationVal : 0
                }

                ListElement {
                    name: ''
                    rotationVal : 0
                }

                ListElement {
                    rotationVal : -90
                    name: '<--'
                }

                ListElement {
                    name: ''
                    rotationVal : 0
                }
            }

            model: pultModel

            delegate:
                Rectangle {

                height: gridOfPult.cellHeight
                width: gridOfPult.cellWidth
                color: root.darkBackgroundColor
                MyButton2 {
                    visible: name !== ''
                    rotation: rotationVal
                    height: rotationVal === 0 ? gridOfPult.cellHeight : gridOfPult.cellWidth
                    width: rotationVal === 0 ? gridOfPult.cellWidth : gridOfPult.cellHeight
                    anchors.fill: parent
                    anchors.margins: 2
                    text: name
                    onPressed: {
                        bhz.navigMenu(0)
                        print(height);
                        print(width);
                        //  bhz.enterMenu()
                    }
                }

            }

        }

[Idodoqdo]

I didn't bother and made alias txt.rotation