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Viewing changes to tests/auto/quick/qquicklistview/data/delegateCreationRange.qml

  • Committer: Package Import Robot
  • Author(s): Michał Sawicz
  • Date: 2013-09-11 14:03:31 UTC
  • Revision ID: package-import@ubuntu.com-20130911140331-wv7btehlz356piyi
Tags: 5.0.2-6ubuntu2
https://launchpad.net/bugs/1217924
Add qtquick_delegate_creation_range_itemviews.patch to patchset.
(LP: #1217924)

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tests/auto/quick/qquicklistview/data/delegateCreationRange.qml
 
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import QtQuick 2.0
 
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ListView {
 
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    id: list
 
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    width: 400
 
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    height: 600
 
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    model: ListModel {
 
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        ListElement { kind: "Bought" }
 
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        ListElement { kind: "Available To Buy" }
 
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    }
 
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    delegate: ListView {
 
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        id: innerList
 
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        objectName: "list" + index
 
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        height: count * itemHeight
 
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        width: parent.width
 
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        interactive: false
 
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        property int count: {
 
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            if (innerList.foo == 0) return 50;
 
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            else return 100;
 
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        }
 
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        property int itemHeight: innerList.foo == 0 ? 200 : 50;
 
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        model: count
 
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        property int foo: index
 
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        property bool enableRange: true
 
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        onEnableRangeChanged: updatedDelegateCreationRange();
 
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        delegate: Item {
 
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            width: parent.width
 
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            height: innerList.itemHeight
 
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            Rectangle {
 
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                width: parent.width - 20
 
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                height: parent.height - 20
 
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                anchors.centerIn: parent
 
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                color: {
 
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                    if (innerList.foo == 0) return Math.random() * 2 > 1 ? "green" : "yellow";
 
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                    else return Math.random() * 2 > 1 ? "red" : "blue";
 
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                }
 
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                Text {
 
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                    text: index
 
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                }
 
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            }
 
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        }
 
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        delegateCreationBegin: enableRange ? 0 : undefined
 
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        delegateCreationEnd: enableRange ? 0 : undefined
 
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        function updatedDelegateCreationRange() {
 
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            if (!enableRange) {
 
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              delegateCreationBegin = undefined
 
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              delegateCreationEnd = undefined
 
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              return;
 
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            }
 
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            if (list.contentY + list.height <= y) {
 
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                // Not visible
 
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                delegateCreationBegin = 0
 
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                delegateCreationEnd = 0
 
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            } else if (y + height <= list.contentY) {
 
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                // Not visible
 
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                delegateCreationBegin = height
 
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                delegateCreationEnd = height
 
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            } else {
 
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                delegateCreationBegin = Math.max(list.contentY - y, 0)
 
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                delegateCreationEnd = Math.min(list.contentY + list.height - y, height)
 
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            }
 
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        }
 
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        Component.onCompleted: updatedDelegateCreationRange();
 
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        Connections {
 
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            target: list
 
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            onContentYChanged: updatedDelegateCreationRange();
 
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            onHeightChanged: updatedDelegateCreationRange();
 
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        }
 
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    }
 
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    section.property: "kind"
 
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    section.delegate: Text {
 
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        height: 40
 
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        font.pixelSize: 30
 
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        text: section
 
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    }
 
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}
 
 
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