Move demos to qtdoc repository

These demos use several modules and moving them allows to use for
example Qt Quick Controls 2 in them.

Change-Id: I1f352671dec672665e9fdb6a9c2a7c6e25a002b0
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Venugopal Shivashankar <Venugopal.Shivashankar@qt.io>
Reviewed-by: Nico Vertriest <nico.vertriest@qt.io>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>

1 files changed, 0 insertions, 372 deletions

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-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:FDL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Free Documentation License Usage
-** Alternatively, this file may be used under the terms of the GNU Free
-** Documentation License version 1.3 as published by the Free Software
-** Foundation and appearing in the file included in the packaging of
-** this file. Please review the following information to ensure
-** the GNU Free Documentation License version 1.3 requirements
-** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
-    \title Qt Quick Demo - RSS News
-    \ingroup qtquickdemos
-    \example demos/rssnews
-    \brief A QML RSS news reader that uses XmlListModel and XmlRole to download
-    XML data, ListModel and ListElement to create a category list, and ListView
-    to display the data.
-
-    \image qtquick-demo-rssnews-small.png
-
-    \e{RSS News} demonstrates the following \l{Qt Quick} features:
-
-    \list
-        \li Using custom types to create screens and screen controls.
-        \li Using list models and list elements to represent data.
-        \li Using XML list models to download XML data.
-        \li Using list views to display data.
-        \li Using the \l Component type to create a footer for the news item
-            list view.
-        \li Using the \l Image type to create a button for closing the app.
-    \endlist
-
-    \include examples-run.qdocinc
-
-    \section1 Using Custom Types
-
-    In the RSS News app, we use the following custom types that are each defined
-    in a separate .qml file:
-
-    \list
-        \li \c BusyIndicator.qml
-        \li \c CategoryDelegate.qml
-        \li \c NewsDelegate.qml
-        \li \c RssFeeds.qml
-        \li \c ScrollBar.qml
-    \endlist
-
-    To use the custom types, we add an import statement to the main QML file,
-    rssnews.qml that imports the folder called \c content where the types are
-    located:
-
-    \quotefromfile demos/rssnews/rssnews.qml
-    \skipto content
-    \printuntil "
-
-    \section1 Creating the Main Window
-
-    In rssnews.qml, we use a \l{Rectangle} type with custom properties to create
-    the app main window:
-
-    \printuntil isPortrait
-
-    We will use the custom properties later for loading XML data and for
-    adjusting the screen layout depending on its orientation.
-
-    \section1 Creating a Category List
-
-    In rssnews.qml, we use the RssFeeds custom type that we specify in
-    RssFeeds.qml to create a list of feed categories:
-
-    \skipto RssFeeds
-    \printuntil }
-
-    In RssFeeds.qml, we use a ListModel type with a ListElement type to
-    create a category list where list elements represent feed categories:
-
-    \quotefromfile demos/rssnews/content/RssFeeds.qml
-    \skipto ListModel
-    \printuntil /^\}/
-
-    List elements are defined like other QML types except that they contain a
-    collection of \e role definitions instead of properties. Roles both define
-    how the data is accessed and include the data itself.
-
-    For each list element, we use the \c name role to specify the category name,
-    the \c feed role to specify the URL to load the data from, and the \c image
-    role to display an image for the category.
-
-    In rssnews.qml, we use a ListView type to display the category list:
-
-    \quotefromfile demos/rssnews/rssnews.qml
-    \skipto ListView
-    \printuntil }
-    \printuntil }
-
-    To lay out the category list horizontally at the top of the window in
-    portrait orientation and vertically on the left side in landscape
-    orientation, we use the \c orientation property. Based on the orientation,
-    we bind either the width or the height of the list to a fixed value
-    (\c itemWidth).
-
-    We use the \c anchors.top property to position the list view at the top of
-    the screen in both orientations.
-
-    We use the \c model property to load XML data from the \c rssFeeds model,
-    and \c CategoryDelegate as the delegate to instantiate each item in the
-    list.
-
-    \section1 Creating List Elements
-
-    In CategoryDelegate.qml, we use the \l Rectangle type with custom properties
-    to create list elements:
-
-    \quotefromfile demos/rssnews/content/CategoryDelegate.qml
-    \skipto Rectangle
-    \printuntil selected
-
-    We set the \c selected property to the \c ListView.isCurrentItem attached
-    property to specify that \c selected is \c true if \c delegate is the
-    current item.
-
-    We use the \l Image type \c source property to display the image, centered
-    in the delegate, specified for the list element by the \c image role in the
-    \c rssFeeds list model:
-
-    \skipto Image
-    \printuntil }
-
-    We use a \l Text type to add titles to list elements:
-
-    \printuntil Behavior
-    \printuntil }
-
-    We use the \c anchors property to position the title at the top of the list
-    element, with a 20-pixel margin. We use \c font properties to adjust font
-    size and text formatting.
-
-    We use the \c color property to brighten the text and to scale it slightly
-    larger when the list item is the current item. By applying a \l Behavior to
-    the property, we animate the actions of selecting and deselecting list
-    items.
-
-    We use a MouseArea type to download XML data when users tap a category list
-    element:
-
-    \skipto MouseArea
-    \printuntil }
-    \printuntil }
-
-    The \c anchors.fill property is set to \c delegate to enable users to tap
-    anywhere within the list element.
-
-    We use the \c onClicked signal handler to load the XML data for the category
-    list. If the tapped category is already current, the \c reload() function
-    is called to reload the data.
-
-    \section1 Downloading XML Data
-
-    In rssnews.qml, we use an XmlListModel type as a data source for ListView
-    elements to display news items in the selected category:
-
-    \quotefromfile demos/rssnews/rssnews.qml
-    \skipto XmlListModel {
-    \printuntil namespaceDeclarations
-
-    We use the \c source property and the \c window.currentFeed custom property
-    to fetch news items for the selected category.
-
-    The \c query property specifies that the XmlListModel generates a model item
-    for each \c <item> in the XML document.
-
-    We use the XmlRole type to specify the model item attributes. Each model
-    item has the \c title, \c description, \c image, \c link, and \c pubDate
-    attributes that match the values of the corresponding \c <item> in the XML
-    document:
-
-    \printuntil pubDate
-    \printuntil }
-
-    We use the \c feedModel model in a ListView type to display the data:
-
-    \skipuntil ScrollBar
-    \skipto ListView
-    \printuntil }
-    \printuntil }
-
-    To list the news items below the category list in portrait orientation and
-    to its right in landscape orientation, we use the \c isPortrait custom
-    property to anchor the top of the news items list to the left of \c window
-    and bottom of \c categories in portrait orientation and to the right of
-    \c categories and bottom of \c window in landscape orientation.
-
-    We use the \c anchors.bottom property to anchor the bottom of the list view
-    to the bottom of the window in both orientations.
-
-    In portrait orientation, we clip the painting of the news items to the
-    bounding rectangle of the list view to avoid graphical artifacts when news
-    items are scrolled over other items. In landscape, this is not required,
-    because the list spans the entire screen vertically.
-
-    We use the \c model property to load XML data from the \c feedModel model,
-    and use \c NewsDelegate as the delegate to instantiate each item in the
-    list.
-
-    In NewsDelegate.qml, we use a \l Column type to lay out the XML data:
-
-    \quotefromfile demos/rssnews/content/NewsDelegate.qml
-    \skipto Column
-    \printuntil spacing
-
-    Within the column, we use a \l Row and another column to position images and
-    title text:
-
-    \skipto Row
-    \printuntil font.bold
-    \printuntil }
-    \printuntil }
-
-    We generate a textual representation of how long ago the item was posted
-    using the \c timeSinceEvent() JavaScript function:
-
-    \printuntil }
-    \printuntil }
-
-    We use the \c onLinkActivated signal handler to open the URL in an external
-    browser when users select the link.
-
-    \section1 Providing Feedback to Users
-
-    In CategoryDelegate.qml, we use the \c BusyIndicator custom type to indicate
-    activity while the XML data is being loaded:
-
-    \quotefromfile demos/rssnews/content/CategoryDelegate.qml
-    \skipto BusyIndicator
-    \printuntil }
-
-    We use the \c scale property to reduce the indicator size to \c 0.8. We bind
-    the \c visible property to the \c isCurrentItem attached property of the
-    \c delegate list view and \c loading property of the main window to display
-    the indicator image when a category list item is the current item and XML
-    data is being loaded.
-
-    We define the \c BusyIndicator type in \c BusyIndicator.qml. We use an
-    \l Image type to display an image and apply a NumberAnimation to its
-    \c rotation property to rotate the image in an infinite loop:
-
-    \quotefromfile demos/rssnews/content/BusyIndicator.qml
-    \skipto Image
-    \printuntil }
-    \printuntil }
-
-    In your apps, you can also use the BusyIndicator type from the
-    \l {Qt Quick Controls} module.
-
-    \section1 Creating Scroll Bars
-
-    In rssnews.qml, we use our own custom \c ScrollBar type to create scroll
-    bars in the category and news item list views. In your apps, you can also
-    use the ScrollView type from the \l {Qt Quick Controls} module.
-
-    First, we create a scroll bar in the category list view. We bind the
-    \c orientation property to the \c isPortrait property and to the
-    \c Horizontal value of the \c Qt::Orientation enum type to display a
-    horizontal scroll bar in portrait orientation and to the \c Vertical value
-    to display a vertical scroll bar in landscape orientation:
-
-    \quotefromfile demos/rssnews/rssnews.qml
-    \skipto ScrollBar
-    \printuntil }
-
-    Same as with the \c categories list view, we adjust the width and height of
-    the scroll bar based on the \c isPortrait property.
-
-    We use the \c scrollArea property to display the scroll bar in the
-    \c categories list view.
-
-    We use the \c anchors.right property to anchor the scroll bar to the right
-    side of the category list.
-
-    \skipto ScrollBar
-    \printuntil }
-
-    Second, we create another scroll bar in the news item list view. We want a
-    vertical scroll bar to appear on the right side of the view regardless of
-    screen orientation, so we can set the \c width property to \c 8 and bind the
-    \c anchors.right property to the \c window.right property. We use the
-    \c anchors.top property to anchor the scroll bar top to the bottom of the
-    category list in portrait orientation and to the top of the news item list
-    in landscape orientation. We use the \c anchors.bottom property to anchor
-    the scroll bar bottom to the list view bottom in both orientations.
-
-    We define the \c ScrollBar type in \c ScrollBar.qml. We use an \l Item type
-    with custom properties to create a container for the scroll bar:
-
-    \quotefromfile demos/rssnews/content/ScrollBar.qml
-    \skipto Item
-    \printuntil opacity
-
-    We use a BorderImage type to display the scroll bar thumb at the x and y
-    position that we calculate by using the \c position() function:
-
-    \skipto BorderImage
-    \printuntil height
-    \printuntil }
-
-    We use the \c size function to calculate the thumb width and height
-    depending on the screen orientation.
-
-    We use \c states to make the scroll bar visible when the users move the
-    scroll area:
-
-    \printuntil }
-    \printuntil }
-
-    We use \c transitions to apply a NumberAnimation to the \c "opacity"
-    property when the state changes from "visible" to the default state:
-
-    \printuntil /^\}/
-
-    \section1 Creating Footers
-
-    In rssnews.qml, we use a \l Component type with a \l Rectangle type to
-    create a footer for the news list view:
-
-    \quotefromfile demos/rssnews/rssnews.qml
-    \skipto Component
-    \printuntil }
-    \printuntil }
-    \printuntil }
-
-    We bind the \c width of the footer to the width of the component and the
-    \c height to the of close button to align them when no news items are
-    displayed.
-
-    \section1 Creating Buttons
-
-    In rssnews.qml, we use an \l Image type to create a simple push button that
-    users can tap to close the app:
-
-    \printuntil Qt.quit()
-    \printuntil }
-    \printuntil }
-    \printuntil }
-
-    We use \c anchors to position the close button in the top right corner of
-    the news list view, with 4-pixel margins. Because the close button overlaps
-    the category list in portrait orientation, we animate the \c opacity
-    property to make the button almost fully transparent when users are
-    scrolling the category list.
-
-    We use the \c onClicked signal handler within a MouseArea to call the
-    \c quit() function when users select the close button.
-
-    \sa {QML Applications}
-*/