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Diffstat (limited to 'examples/qml/tutorials/dynamicview/dynamicview4/dynamicview.qml')
| -rw-r--r-- | examples/qml/tutorials/dynamicview/dynamicview4/dynamicview.qml | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/examples/qml/tutorials/dynamicview/dynamicview4/dynamicview.qml b/examples/qml/tutorials/dynamicview/dynamicview4/dynamicview.qml new file mode 100644 index 0000000000..9bd4e0c438 --- /dev/null +++ b/examples/qml/tutorials/dynamicview/dynamicview4/dynamicview.qml @@ -0,0 +1,219 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** 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 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 QtQuick 2.0 + +Rectangle { + id: root + + width: 300; height: 400 + + Component { + id: dragDelegate + + MouseArea { + id: dragArea + + property bool held: false + + anchors { left: parent.left; right: parent.right } + height: content.height + + enabled: visualModel.sortOrder == visualModel.lessThan.length + + drag.target: held ? content : undefined + drag.axis: Drag.YAxis + + onPressAndHold: held = true + onReleased: held = false + + Rectangle { + id: content + + anchors { + horizontalCenter: parent.horizontalCenter + verticalCenter: parent.verticalCenter + } + width: dragArea.width; height: column.implicitHeight + 4 + + border.width: 1 + border.color: "lightsteelblue" + + color: dragArea.held ? "lightsteelblue" : "white" + Behavior on color { ColorAnimation { duration: 100 } } + + radius: 2 + + Drag.active: dragArea.held + Drag.source: dragArea + Drag.hotSpot.x: width / 2 + Drag.hotSpot.y: height / 2 + + states: State { + when: dragArea.held + + ParentChange { target: content; parent: root } + AnchorChanges { + target: content + anchors { horizontalCenter: undefined; verticalCenter: undefined } + } + } + + Column { + id: column + anchors { fill: parent; margins: 2 } + + Text { text: 'Name: ' + name } + Text { text: 'Type: ' + type } + Text { text: 'Age: ' + age } + Text { text: 'Size: ' + size } + } + } + + DropArea { + anchors { fill: parent; margins: 10 } + + onEntered: { + visualModel.items.move( + drag.source.VisualDataModel.itemsIndex, + dragArea.VisualDataModel.itemsIndex) + } + } + } + } +//![0] + VisualDataModel { + id: visualModel +//![4] + property var lessThan: [ + function(left, right) { return left.name < right.name }, + function(left, right) { return left.type < right.type }, + function(left, right) { return left.age < right.age }, + function(left, right) { + if (left.size == "Small") + return true + else if (right.size == "Small") + return false + else if (left.size == "Medium") + return true + else + return false + } + ] +//![4] +//![6] + + property int sortOrder: orderSelector.selectedIndex + onSortOrderChanged: items.setGroups(0, items.count, "unsorted") + +//![6] +//![3] + function insertPosition(lessThan, item) { + var lower = 0 + var upper = items.count + while (lower < upper) { + var middle = Math.floor(lower + (upper - lower) / 2) + var result = lessThan(item.model, items.get(middle).model); + if (result) { + upper = middle + } else { + lower = middle + 1 + } + } + return lower + } + + function sort(lessThan) { + while (unsortedItems.count > 0) { + var item = unsortedItems.get(0) + var index = insertPosition(lessThan, item) + + item.groups = "items" + items.move(item.itemsIndex, index) + } + } +//![3] + +//![1] + items.includeByDefault: false +//![5] + groups: VisualDataGroup { + id: unsortedItems + name: "unsorted" + + includeByDefault: true +//![1] + onChanged: { + if (visualModel.sortOrder == visualModel.lessThan.length) + setGroups(0, count, "items") + else + visualModel.sort(visualModel.lessThan[visualModel.sortOrder]) + } +//![2] + } +//![2] +//![5] + model: PetsModel {} + delegate: dragDelegate + } +//![0] + ListView { + id: view + + anchors { + left: parent.left; top: parent.top; right: parent.right; bottom: orderSelector.top; + margins: 2 + } + + model: visualModel + + spacing: 4 + cacheBuffer: 50 + } + + ListSelector { + id: orderSelector + + anchors { left: parent.left; right: parent.right; bottom: parent.bottom; margins: 2 } + + label: "Sort By" + list: [ "Name", "Type", "Age", "Size", "Custom" ] + } +} |