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'''Български''' | [[Drag and Drop within a GridView|English]] | [[Drag and Drop within a GridView Japanese|日本語]]
{{Cleanup | reason=Auto-imported from ExpressionEngine.}}
{{LangSwitch}}
[[Category:Snippets::QML]]
[[Category:Developing_with_Qt::Qt Quick::QML]]
[[Category:Developing_with_Qt::Qt Quick::Tutorial]]


Тази статия е създадена заради няколко теми във форума (линковете са в края на статията), в които се пита за такъв метод. Чувствайте се свободни да добавяте коментари и код.
Тази статия е създадена заради няколко теми във форума (линковете са в края на статията), в които се пита за такъв метод. Чувствайте се свободни да добавяте коментари и код.


=Влачене и пускане на елементи в GridView=
= Влачене и пускане на елементи в GridView =


Този пример ще покаже влачене и пускане на елелемeнти в ''GridView'' по подобен на iOS начин ([http://www.youtube.com/watch?v=qnXoGnUU6uI видео] ''[youtube.com]'' ).
Този пример ще покаже влачене и пускане на елелемeнти в ''GridView'' по подобен на iOS начин ([http://www.youtube.com/watch?v=qnXoGnUU6uI видео] ).


В примера има 3 файла. Един за модела (WidgetModel.qml), един за делегата (IconItem.qml) и един за GridView (Main.qml).
В примера има 3 файла. Един за модела (WidgetModel.qml), един за делегата (IconItem.qml) и един за GridView (Main.qml).


'''WidgetModel.qml'''<br />
'''WidgetModel.qml'''
<code>import QtQuick 1.0


'''IconItem.qml'''<br />
ListModel {
ListElement { icon: "Images/widget1.png"; gridId: 0}
ListElement { icon: "Images/widget2.png"; gridId: 1}
ListElement { icon: "Images/widget3.png"; gridId: 2}
ListElement { icon: "Images/widget4.png"; gridId: 3}
ListElement { icon: "Images/widget5.png"; gridId: 4}
ListElement { icon: "Images/widget6.png"; gridId: 5}
ListElement { icon: "Images/widget7.png"; gridId: 6}
ListElement { icon: "Images/widget8.png"; gridId: 7}
ListElement { icon: "Images/widget9.png"; gridId: 8}
}</code>


'''Main.qml'''<br />
'''IconItem.qml'''
<code>import QtQuick 1.0


'''Video'''<br />
Component {
Item {
id: main
width: grid.cellWidth; height: grid.cellHeight
Image {
id: item; parent: loc
x: main.x + 5; y: main.y + 5
width: main.width - 10; height: main.height - 10;
fillMode: Image.PreserveAspectFit; smooth: true
source: icon
Rectangle {
anchors.fill: parent;
border.color: "#326487"; border.width: 6
color: "transparent"; radius: 5
visible: item.state  "active"
            }
            Behavior on x { enabled: item.state != "active"; NumberAnimation { duration: 400; easing.type: Easing.OutBack } }
            Behavior on y { enabled: item.state != "active"; NumberAnimation { duration: 400; easing.type: Easing.OutBack } }
            SequentialAnimation on rotation {
                NumberAnimation { to:  2; duration: 60 }
                NumberAnimation { to: -2; duration: 120 }
                NumberAnimation { to:  0; duration: 60 }
                running: loc.currentId != -1 && item.state != "active"
                loops: Animation.Infinite; alwaysRunToEnd: true
            }
            states: State {
                name: "active"; when: loc.currentId  gridId
PropertyChanges { target: item; x: loc.mouseX - width/2; y: loc.mouseY - height/2; scale: 0.5 }
}
transitions: Transition { NumberAnimation { property: "scale"; duration: 200} }
}
}
}</code>


Теми от форума:<br />[http://developer.qt.nokia.com/forums/viewthread/2327/ iOS Style Rearrange of Icons] ''[developer.qt.nokia.com]''<br />[http://developer.qt.nokia.com/forums/viewthread/2426/ <span class="caps">QML</span> and Drag and Drop] ''[developer.qt.nokia.com]''
'''Main.qml'''
<code>import QtQuick 1.0


===Categories:===
Rectangle {
width: 640; height: 480
color: "#222222"
GridView {
id: grid
interactive: false
anchors {
topMargin: 60; bottomMargin: 60
leftMargin: 140; rightMargin: 140
fill: parent
}
cellWidth: 120; cellHeight: 120;
model: WidgetModel { id: icons }
delegate: IconItem { }
MouseArea {
property int currentId: –1 // Original position in model
property int newIndex // Current Position in model
property int index: grid.indexAt(mouseX, mouseY) // Item underneath cursor
id: loc
anchors.fill: parent
onPressAndHold: currentId = icons.get(newIndex = index).gridId
onReleased: currentId = –1
onMousePositionChanged:
if (loc.currentId [[Image:= -1 && index |= -1 && index ]]= –1 && index != newIndex)
icons.move(newIndex, newIndex = index, 1)
}
}
}</code>


* [[:Category:Developing with Qt|Developing_with_Qt]]
'''Video'''
** [[:Category:Developing with Qt::Qt-Quick|Qt Quick]]
https://www.youtube.com/watch?v=4tt5hQYS4Fo
* [[:Category:Developing with Qt::Qt-Quick::QML|QML]]


* [[:Category:Developing with Qt::Qt-Quick::Tutorial|Tutorial]]
Теми от форума:
 
[http://developer.qt.nokia.com/forums/viewthread/2327/ iOS Style Rearrange of Icons]
* [[:Category:snippets|snippets]]
[http://developer.qt.nokia.com/forums/viewthread/2426/ QML and Drag and Drop]

Latest revision as of 13:14, 28 November 2016

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Тази статия е създадена заради няколко теми във форума (линковете са в края на статията), в които се пита за такъв метод. Чувствайте се свободни да добавяте коментари и код.

Влачене и пускане на елементи в GridView

Този пример ще покаже влачене и пускане на елелемeнти в GridView по подобен на iOS начин (видео ).

В примера има 3 файла. Един за модела (WidgetModel.qml), един за делегата (IconItem.qml) и един за GridView (Main.qml).

WidgetModel.qml

import QtQuick 1.0

ListModel {
 ListElement { icon: "Images/widget1.png"; gridId: 0}
 ListElement { icon: "Images/widget2.png"; gridId: 1}
 ListElement { icon: "Images/widget3.png"; gridId: 2}
 ListElement { icon: "Images/widget4.png"; gridId: 3}
 ListElement { icon: "Images/widget5.png"; gridId: 4}
 ListElement { icon: "Images/widget6.png"; gridId: 5}
 ListElement { icon: "Images/widget7.png"; gridId: 6}
 ListElement { icon: "Images/widget8.png"; gridId: 7}
 ListElement { icon: "Images/widget9.png"; gridId: 8}
}

IconItem.qml

import QtQuick 1.0

Component {
 Item {
 id: main
 width: grid.cellWidth; height: grid.cellHeight
 Image {
 id: item; parent: loc
 x: main.x + 5; y: main.y + 5
 width: main.width - 10; height: main.height - 10;
 fillMode: Image.PreserveAspectFit; smooth: true
 source: icon
 Rectangle {
 anchors.fill: parent;
 border.color: "#326487"; border.width: 6
 color: "transparent"; radius: 5
 visible: item.state  "active"
            }
            Behavior on x { enabled: item.state != "active"; NumberAnimation { duration: 400; easing.type: Easing.OutBack } }
            Behavior on y { enabled: item.state != "active"; NumberAnimation { duration: 400; easing.type: Easing.OutBack } }
            SequentialAnimation on rotation {
                NumberAnimation { to:  2; duration: 60 }
                NumberAnimation { to: -2; duration: 120 }
                NumberAnimation { to:  0; duration: 60 }
                running: loc.currentId != -1 && item.state != "active"
                loops: Animation.Infinite; alwaysRunToEnd: true
            }
            states: State {
                name: "active"; when: loc.currentId  gridId
 PropertyChanges { target: item; x: loc.mouseX - width/2; y: loc.mouseY - height/2; scale: 0.5 }
 }
 transitions: Transition { NumberAnimation { property: "scale"; duration: 200} }
 }
 }
}

Main.qml

import QtQuick 1.0

Rectangle {
 width: 640; height: 480
 color: "#222222"
 GridView {
 id: grid
 interactive: false
 anchors {
 topMargin: 60; bottomMargin: 60
 leftMargin: 140; rightMargin: 140
 fill: parent
 }
 cellWidth: 120; cellHeight: 120;
 model: WidgetModel { id: icons }
 delegate: IconItem { }
 MouseArea {
 property int currentId: 1 // Original position in model
 property int newIndex // Current Position in model
 property int index: grid.indexAt(mouseX, mouseY) // Item underneath cursor
 id: loc
 anchors.fill: parent
 onPressAndHold: currentId = icons.get(newIndex = index).gridId
 onReleased: currentId = 1
 onMousePositionChanged:
 if (loc.currentId [[Image:= -1 && index |= -1 && index ]]= 1 && index != newIndex)
 icons.move(newIndex, newIndex = index, 1)
 }
 }
}

Video https://www.youtube.com/watch?v=4tt5hQYS4Fo

Теми от форума: iOS Style Rearrange of Icons QML and Drag and Drop