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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt for Python 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 The Qt Company Ltd 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
import QtQuick.Controls
import QtQuick.Window
import BaseModel
Window {
title: "Moving Rectangle"
width: 800
height: 480
visible: true
id: mainWindow
Column {
spacing: 20
anchors.fill: parent
id: mainColumn
Text {
padding: 20
font.pointSize: 10
width: 600
wrapMode: Text.Wrap
text: "This example shows how to add, remove and move items inside a QML ListView.\n
It shows and edits data via roles using QAbstractListModel on the Python side.\n
Use the 'Middle click' on top of a rectangle to remove an item.\n
'Left click' and drag to move the items."
}
Button {
anchors {
left: mainColumn.left
right: mainColumn.right
margins: 30
}
text: "Reset view"
onClicked: lv.model.reset()
}
Button {
anchors {
left: mainColumn.left
right: mainColumn.right
margins: 30
}
text: "Add element"
onClicked: lv.model.append()
}
ListView {
id: lv
anchors {
left: mainColumn.left
right: mainColumn.right
margins: 30
}
height: 200
model: BaseModel {}
orientation: ListView.Horizontal
displaced: Transition {
NumberAnimation {
properties: "x,y"
easing.type: Easing.OutQuad
}
}
delegate: DropArea {
id: droparea
width: ratio * lv.width
height: lv.height
onEntered: function (drag) {
let dragindex = drag.source.modelIndex
if (index === dragindex)
return
lv.model.move(dragindex, index)
}
MovingRectangle {
modelIndex: index
dragParent: lv
sizeParent: droparea
}
}
MouseArea {
id: lvMousearea
anchors.fill: lv
z: -1
}
Rectangle {
id: lvBackground
anchors.fill: lv
anchors.margins: -border.width
color: "white"
border.color: "black"
border.width: 5
z: -1
}
Component.onCompleted: {
lv.model.reset()
}
}
}
}
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