Qt with Cascades UI Examples Documentation

main.qml Example File

queuedcustomtype/assets/main.qml
    /****************************************************************************
     **
     ** Portions Copyright (C) 2012 Research In Motion Limited.
     ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
     ** All rights reserved.
     ** Contact: Research In Motion Ltd. (http://www.rim.com/company/contact/)
     ** Contact: Nokia Corporation (qt-info@nokia.com)
     **
     ** This file is part of the examples of the BB10 Platform and is derived
     ** from a similar file that is part of the Qt Toolkit.
     **
     ** 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 Research In Motion, nor the name of Nokia
     **     Corporation 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,
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     ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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     ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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     ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
     **
     ****************************************************************************/

    import bb.cascades 1.0

    // Page shows a Layout of ImageView's, Label's and control Button
    Page {
        Container {

            layout: DockLayout {}

            // The background image
            ImageView {
                horizontalAlignment: HorizontalAlignment.Center
                verticalAlignment: VerticalAlignment.Center

                imageSource: "asset:///images/background.png"
            }

            // Container for the title
            Container {
                horizontalAlignment: HorizontalAlignment.Center
                verticalAlignment: VerticalAlignment.Center

                // A standard Label
                Label {
                    horizontalAlignment: HorizontalAlignment.Center
                    topMargin: 20

                    text: qsTr ("Touch one of the images below to start rendering")

                    // Defines custom text Color and style
                    textStyle {
                        base: SystemDefaults.TextStyles.SmallText
                        color: Color.Black
                    }
                }

                // Groups the available ImageView's for rendering
                Container {
                    horizontalAlignment: HorizontalAlignment.Center
                    topMargin: 10

                    layout: StackLayout {
                        orientation: LayoutOrientation.LeftToRight
                    }

                    // A standard ImageView
                    ImageView {
                        preferredWidth: 128
                        preferredHeight: 128
                        imageSource: "asset:///images/box.png"

                        // Render this image on touch
                        onTouch: {
                            if (! _renderer.active) _renderer.loadImage ("box.png")
                        }
                    }

                    // A standard ImageView
                    ImageView {
                        leftMargin: 30
                        preferredWidth: 128
                        preferredHeight: 128

                        imageSource: "asset:///images/sphere.png"

                        // Render this image on touch
                        onTouch: {
                            if (! _renderer.active) _renderer.loadImage ("sphere.png")
                        }
                    }

                    // A standard ImageView
                    ImageView {
                        leftMargin: 30
                        preferredWidth: 128
                        preferredHeight: 128

                        imageSource: "asset:///images/cylinder.png"

                        // Render this image on touch
                        onTouch: {
                            if (! _renderer.active) _renderer.loadImage ("cylinder.png")
                        }
                    }

                    // A standard ImageView
                    ImageView {
                        leftMargin: 30
                        preferredWidth: 128
                        preferredHeight: 128

                        imageSource: "asset:///images/pyramid.png"

                        // Render this image on touch
                        onTouch: {
                            if (! _renderer.active) _renderer.loadImage ("pyramid.png")
                        }
                    }
                }

                // Container in which the image is rendered
                Container {
                    objectName: "canvas"

                    horizontalAlignment: HorizontalAlignment.Center
                    preferredWidth: 300
                    preferredHeight: 300

                    layout: AbsoluteLayout {}
                }

                // Container for the app control Button
                Container {
                    horizontalAlignment: HorizontalAlignment.Center
                    bottomPadding: 5

                    preferredWidth: 200

                    // A standard Button
                    Button {
                        text: qsTr ("Stop")

                        // Enabled when rendering is active
                        enabled: _renderer.active

                        // Stop rendering on click
                        onClicked: {
                            _renderer.stop ()
                        }
                    }
                }
            }
        }
    }