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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.io
**
** This file is part of the Qt Data Visualization module.
**
** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
** agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.io
**
****************************************************************************/
import QtQuick 2.1
import QtQuick.Layouts 1.0
import QtQuick.Window 2.1
import QtDataVisualization 1.0
Rectangle {
//! [0]
property Theme3D theme
property Bar3DSeries series
//! [0]
property point previousSelection
id: legendItem
state: "unselected"
// Workaround for a layout bug that in some situations causes changing from fully opaque color
// to a transparent one to use black background instead of what is actually under the items.
// Having the control always slighthly transparent forces the background to be refreshed
// properly.
opacity: 0.999
//! [1]
RowLayout {
anchors.fill: parent
spacing: 0
clip: true
Item {
id: markerSpace
Layout.minimumWidth: 20
Layout.minimumHeight: 20
Layout.fillWidth: true
Layout.fillHeight: true
Layout.alignment: Qt.AlignVCenter
Rectangle {
x: parent.x + parent.width / 4
y: parent.y + parent.height / 4
width: parent.width / 2
height: width
border.color: "black"
color: series.baseColor
}
}
Item {
height: markerSpace.height
Layout.fillWidth: true
Layout.fillHeight: true
Layout.alignment: Qt.AlignVCenter
Layout.minimumWidth: 100
Text {
anchors.fill: parent
text: series.name
verticalAlignment: Text.AlignVCenter
clip: true
color: theme.labelTextColor
font: theme.font
}
}
}
//! [1]
//! [2]
MouseArea {
id: mouseArea
anchors.fill: legendItem
onClicked: {
if (legendItem.state === "selected") {
series.selectedBar = series.invalidSelectionPosition
} else {
series.selectedBar = previousSelection
}
}
}
//! [2]
//! [4]
Connections {
target: series
onSelectedBarChanged: {
if (position != series.invalidSelectionPosition) {
previousSelection = position
}
}
}
//! [4]
//! [3]
states: [
State {
name: "selected"
when: series.selectedBar != series.invalidSelectionPosition
PropertyChanges {
target: legendItem
color: series.singleHighlightColor
}
},
State {
name: "unselected"
when: series.selectedBar == series.invalidSelectionPosition
PropertyChanges {
target: legendItem
color: theme.labelBackgroundColor
}
}
]
//! [3]
}
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