Qt 4.8: Tag.qml Example File (demos/declarative/photoviewer/qml/photoviewer/PhotoViewerCore/Tag.qml)

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# Tag.qml Example File

demos/declarative/photoviewer/qml/photoviewer/PhotoViewerCore/Tag.qml

     /****************************************************************************
     **
     ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
     ** Contact: http://www.qt-project.org/legal
     **
     ** This file is part of the QtDeclarative module of the Qt Toolkit.
     **
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     ** Licensees holding valid commercial Qt licenses may use this file in
     ** accordance with the commercial license agreement provided with the
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     ** GNU Lesser General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU Lesser
     ** General Public License version 2.1 as published by the Free Software
     ** Foundation and appearing in the file LICENSE.LGPL included in the
     ** packaging of this file.  Please review the following information to
     ** ensure the GNU Lesser General Public License version 2.1 requirements
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     ** GNU General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU
     ** General Public License version 3.0 as published by the Free Software
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     import QtQuick 1.0

     Flipable {
         id: flipable

         property alias frontLabel: frontButton.label
         property alias backLabel: backButton.label

         property int angle: 0
         property int randomAngle: Math.random() * (2 * 6 + 1) - 6
         property bool flipped: false

         signal frontClicked
         signal backClicked
         signal tagChanged(string tag)

         front: EditableButton {
             id: frontButton; rotation: flipable.randomAngle
             anchors { centerIn: parent; verticalCenterOffset: -20 }
             onClicked: flipable.frontClicked()
             onLabelChanged: flipable.tagChanged(label)
         }

         back: Button {
             id: backButton; tint: "red"; rotation: flipable.randomAngle
             anchors { centerIn: parent; verticalCenterOffset: -20 }
             onClicked: flipable.backClicked()
         }

         transform: Rotation {
             origin.x: flipable.width / 2; origin.y: flipable.height / 2
             axis.x: 0; axis.y: 1; axis.z: 0
             angle: flipable.angle
         }

         states: State {
             name: "back"; when: flipable.flipped
             PropertyChanges { target: flipable; angle: 180 }
         }

         transitions: Transition {
             ParallelAnimation {
                 NumberAnimation { properties: "angle"; duration: 400 }
                 SequentialAnimation {
                     NumberAnimation { target: flipable; property: "scale"; to: 0.8; duration: 200 }
                     NumberAnimation { target: flipable; property: "scale"; to: 1.0; duration: 200 }
                 }
             }
         }
     }