Qt 4.8: layoutdirection.qml Example File (declarative/righttoleft/layoutdirection/qml/layoutdirection/layoutdirection.qml)

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# layoutdirection.qml Example File

declarative/righttoleft/layoutdirection/qml/layoutdirection/layoutdirection.qml

     /****************************************************************************
     **
     ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
     ** Contact: http://www.qt-project.org/legal
     **
     ** This file is part of the examples of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:BSD$
     ** You may use this file under the terms of the BSD license as follows:
     **
     ** "Redistribution and use in source and binary forms, with or without
     ** modification, are permitted provided that the following conditions are
     ** met:
     **   * Redistributions of source code must retain the above copyright
     **     notice, this list of conditions and the following disclaimer.
     **   * Redistributions in binary form must reproduce the above copyright
     **     notice, this list of conditions and the following disclaimer in
     **     the documentation and/or other materials provided with the
     **     distribution.
     **   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
     **     of its contributors may be used to endorse or promote products derived
     **     from this software without specific prior written permission.
     **
     **
     ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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     ** $QT_END_LICENSE$
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     ****************************************************************************/

     import QtQuick 1.1

     Rectangle {
         id: root
         property bool mirror
         property int direction: Qt.application.layoutDirection
         LayoutMirroring.enabled: mirror
         LayoutMirroring.childrenInherit: true
         width: column.width + 80
         height: column.height + 40
         Column {
             id: column
             width: 190
             spacing: 10
             anchors.centerIn: parent

             Text {
                 text: "Row"
                 anchors.horizontalCenter: parent.horizontalCenter
             }

             Row {
                 layoutDirection: root.direction
                 spacing: 10
                 move: Transition {
                     NumberAnimation {
                         properties: "x"
                     }
                 }
                 Repeater {
                     model: 4
                     Loader {
                         property int value: index
                         sourceComponent: positionerDelegate
                     }
                 }
             }

             Text {
                 text: "Grid"
                 anchors.horizontalCenter: parent.horizontalCenter
             }

             Grid {
                 layoutDirection: root.direction
                 spacing: 10; columns: 4
                 move: Transition {
                     NumberAnimation {
                         properties: "x"
                     }
                 }
                 Repeater {
                     model: 11
                     Loader {
                         property int value: index
                         sourceComponent: positionerDelegate
                     }
                 }
             }

             Text {
                 text: "Flow"
                 anchors.horizontalCenter: parent.horizontalCenter
             }

             Flow {
                 layoutDirection: root.direction
                 spacing: 10; width: parent.width
                 move: Transition {
                     NumberAnimation {
                         properties: "x"
                     }
                 }
                 Repeater {
                     model: 10
                     Loader {
                         property int value: index
                         sourceComponent: positionerDelegate
                     }
                 }
             }

             Text {
                 text: "ListView"
                 anchors.horizontalCenter: parent.horizontalCenter
             }

             ListView {
                 id: listView
                 clip: true
                 width: parent.width; height: 40
                 layoutDirection: root.direction
                 orientation: Qt.Horizontal
                 model: 48
                 delegate: viewDelegate
             }

             Text {
                 text: "GridView"
                 anchors.horizontalCenter: parent.horizontalCenter
             }

             GridView {
                 clip: true
                 width: 200; height: 160
                 cellWidth: 50; cellHeight: 50
                 layoutDirection: root.direction
                 model: 48
                 delegate: viewDelegate
             }

             Rectangle {
                 height: 50; width: parent.width
                 color: mouseArea.pressed ? "black" : "gray"
                 Column {
                     anchors.centerIn: parent
                     Text {
                         text: root.direction ? "Right to left" : "Left to right"
                         color: "white"
                         font.pixelSize: 16
                         anchors.horizontalCenter: parent.horizontalCenter
                     }
                     Text {
                         text: "(click here to toggle)"
                         color: "white"
                         font.pixelSize: 10
                         font.italic: true
                         anchors.horizontalCenter: parent.horizontalCenter
                     }
                 }
                 MouseArea {
                     id: mouseArea
                     anchors.fill: parent
                     onClicked: {
                         if (root.direction == Qt.LeftToRight) {
                             root.direction = Qt.RightToLeft;
                         } else {
                             root.direction = Qt.LeftToRight;
                         }
                     }
                 }
             }

             Rectangle {
                 height: 50; width: parent.width
                 color: mouseArea2.pressed ? "black" : "gray"
                 Column {
                     anchors.centerIn: parent
                     Text {
                         text: root.mirror ? "Mirrored" : "Not mirrored"
                         color: "white"
                         font.pixelSize: 16
                         anchors.horizontalCenter: parent.horizontalCenter
                     }
                     Text {
                         text: "(click here to toggle)"
                         color: "white"
                         font.pixelSize: 10
                         font.italic: true
                         anchors.horizontalCenter: parent.horizontalCenter
                     }
                 }
                 MouseArea {
                     id: mouseArea2
                     anchors.fill: parent
                     onClicked: {
                         root.mirror = !root.mirror;
                     }
                 }
             }
         }

         Component {
             id: positionerDelegate
             Rectangle {
                 width: 40; height: 40
                 color: Qt.rgba(0.8/(parent.value+1),0.8/(parent.value+1),0.8/(parent.value+1),1.0)
                 Text {
                     text: parent.parent.value+1
                     color: "white"
                     font.pixelSize: 18
                     anchors.centerIn: parent
                 }
             }
         }
         Component {
             id: viewDelegate
             Item {
                 function effectiveLayoutDirection() {
                     if (LayoutMirroring.enabled)
                         if (listView.layoutDirection == Qt.LeftToRight)
                             return Qt.RightToLeft;
                         else
                             return Qt.LeftToRight;
                     else
                         return listView.layoutDirection;
                 }

                 width: (effectiveLayoutDirection() == Qt.LeftToRight ? (index == 48 - 1) : (index == 0)) ? 40 : 50
                 Rectangle {
                     width: 40; height: 40
                     color: Qt.rgba(0.5+(48 - index)*Math.random()/48,
                                    0.3+index*Math.random()/48,
                                    0.3*Math.random(),
                                    1.0)
                     Text {
                         text: index+1
                         color: "white"
                         font.pixelSize: 18
                         anchors.centerIn: parent
                     }
                 }
             }
         }
     }