diff options
Diffstat (limited to 'examples/declarative/modelviews/listview/highlightranges.qml')
| -rw-r--r-- | examples/declarative/modelviews/listview/highlightranges.qml | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/examples/declarative/modelviews/listview/highlightranges.qml b/examples/declarative/modelviews/listview/highlightranges.qml new file mode 100644 index 0000000000..a8a95c4708 --- /dev/null +++ b/examples/declarative/modelviews/listview/highlightranges.qml @@ -0,0 +1,133 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtDeclarative module 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 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, +** 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." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import Qt 4.7 + +Rectangle { + width: 600; height: 300 + + // MyPets model is defined in dummydata/MyPetsModel.qml + // The viewer automatically loads files in dummydata/* to assist + // development without a real data source. + // This one contains my pets. + + // Define a delegate component. A component will be + // instantiated for each visible item in the list. + Component { + id: petDelegate + Item { + width: 200; height: 50 + Column { + Text { text: 'Name: ' + name } + Text { text: 'Type: ' + type } + Text { text: 'Age: ' + age } + } + } + } + + // Define a highlight component. Just one of these will be instantiated + // by each ListView and placed behind the current item. + Component { + id: petHighlight + Rectangle { color: "#FFFF88" } + } + + // Show the model in three lists, with different highlight ranges. + // preferredHighlightBegin and preferredHighlightEnd set the + // range in which to attempt to maintain the highlight. + // + // Note that the second and third ListView + // set their currentIndex to be the same as the first, and that + // the first ListView is given keyboard focus. + // + // The default mode allows the currentItem to move freely + // within the visible area. If it would move outside the visible + // area, the view is scrolled to keep it visible. + // + // The second list sets a highlight range which attempts to keep the + // current item within the the bounds of the range, however + // items will not scroll beyond the beginning or end of the view, + // forcing the highlight to move outside the range at the ends. + // + // The third list sets the highlightRangeMode to StrictlyEnforceRange + // and sets a range smaller than the height of an item. This + // forces the current item to change when the view is flicked, + // since the highlight is unable to move. + // + // Note that the first ListView sets its currentIndex to be equal to + // the third ListView's currentIndex. By flicking List3 with + // the mouse, the current index of List1 will be changed. + + ListView { + id: list1 + width: 200; height: parent.height + model: MyPetsModel + delegate: petDelegate + + highlight: petHighlight + currentIndex: list3.currentIndex + focus: true + } + + ListView { + id: list2 + x: 200; width: 200; height: parent.height + model: MyPetsModel + delegate: petDelegate + + highlight: petHighlight + currentIndex: list1.currentIndex + preferredHighlightBegin: 80; preferredHighlightEnd: 220 + highlightRangeMode: ListView.ApplyRange + } + + ListView { + id: list3 + x: 400; width: 200; height: parent.height + model: MyPetsModel + delegate: petDelegate + + highlight: Rectangle { color: "lightsteelblue" } + currentIndex: list1.currentIndex + preferredHighlightBegin: 125; preferredHighlightEnd: 125 + highlightRangeMode: ListView.StrictlyEnforceRange + flickDeceleration: 1000 + } +} |