qt-everywhere-src-5.15.1/qtdeclarative/tests/testapplications/qsgimage/img-align.qml

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import QtQuick 2.0

Rectangle {
    id: main
    width: 800; height: 600
    focus: true
    color: "#eeeeee"

    property variant hAlign: Image.AlignHCenter
    property variant vAlign: Image.AlignVCenter
    property bool mirror: false
    property string source: "qt-logo.png"

    Flow {
        anchors.fill: parent
        anchors { topMargin: 20; leftMargin: 20; rightMargin: 20 }
        spacing: 30

        ImageNG {
            horizontalAlignment: main.hAlign; verticalAlignment: main.vAlign
            mirror: main.mirror; source: main.source
            explicitSize: false
            label: "implicit size"
        }
        ImageNG {
            horizontalAlignment: main.hAlign; verticalAlignment: main.vAlign
            mirror: main.mirror; source: main.source
            label: "explicit size"
        }
        ImageNG {
            horizontalAlignment: main.hAlign; verticalAlignment: main.vAlign
            fillMode: Image.Pad
            mirror: main.mirror; source: main.source
            label: "padding"
        }
        ImageNG {
            horizontalAlignment: main.hAlign; verticalAlignment: main.vAlign
            fillMode: Image.Tile
            mirror: main.mirror; source: main.source
            label: "tile"
        }
        ImageNG {
            horizontalAlignment: main.hAlign; verticalAlignment: main.vAlign
            fillMode: Image.TileHorizontally
            mirror: main.mirror; source: main.source
            label: "tile horizontally"
        }
        ImageNG {
            horizontalAlignment: main.hAlign; verticalAlignment: main.vAlign
            fillMode: Image.TileVertically
            mirror: main.mirror; source: main.source
            label: "tile vertically"
        }
        ImageNG {
            horizontalAlignment: main.hAlign; verticalAlignment: main.vAlign
            fillMode: Image.PreserveAspectFit
            mirror: main.mirror; source: main.source
            label: "preserve aspect fit"
        }
        ImageNG {
            horizontalAlignment: main.hAlign; verticalAlignment: main.vAlign
            fillMode: Image.PreserveAspectFit
            width: 150; height: 200
            mirror: main.mirror; source: main.source
            label: "preserve aspect fit"
        }
        ImageNG {
            horizontalAlignment: main.hAlign; verticalAlignment: main.vAlign
            fillMode: Image.PreserveAspectCrop
            mirror: main.mirror; source: main.source
            label: "preserve aspect crop"
        }
        ImageNG {
            horizontalAlignment: main.hAlign; verticalAlignment: main.vAlign
            fillMode: Image.PreserveAspectCrop
            width: 150; height: 200
            mirror: main.mirror; source: main.source
            label: "preserve aspect crop"
        }
    }

    Keys.onUpPressed: vAlign = Image.AlignTop
    Keys.onDownPressed: vAlign = Image.AlignBottom
    Keys.onLeftPressed: hAlign = Image.AlignLeft
    Keys.onRightPressed: hAlign = Image.AlignRight
    Keys.onPressed: {
        if (event.key == Qt.Key_H)
            hAlign = Image.AlignHCenter
        else if (event.key == Qt.Key_V)
            vAlign = Image.AlignVCenter
    }
}