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/*
Copyright (C) 2016 Michael Bohlender, <michael.bohlender@kdemail.net>
Copyright (C) 2017 Christian Mollekopf, <mollekopf@kolabsystems.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
import QtQuick 2.4
import QtQuick.Controls 1.4
import QtQuick.Controls 2 as Controls2
import QtQuick.Controls.Styles 1.4
import QtQuick.Layouts 1.1
import QtQml.Models 2.2
import org.kube.framework 1.0 as Kube
FocusScope {
id: root
default property alias __columns: treeView.__columns
property alias model: treeView.model
property alias currentIndex: treeView.currentIndex
/*
* Because active focus is useless in list/treeviews we use the concept of an activeIndex.
* The current selection represents the focused index. The activeIndex represents the selected index.
* FIXME: This is what QItemSelectionModel selection vs current selection are for. Try to use that instead.
*/
property var activeIndex: null
signal dropped(var drop, var model)
signal activated(var index)
onActivated: {
activeIndex = index
}
Flickable {
id: flickableItem
anchors.fill: parent
Controls2.ScrollBar.vertical: Kube.ScrollBar {}
clip: true
contentWidth: root.width
contentHeight: treeView.implicitHeight
Kube.ScrollHelper {
id: scrollHelper
flickable: flickableItem
}
TreeView {
id: treeView
anchors {
left: parent.left
right: parent.right
}
implicitHeight: __listView.contentItem.height + 2
height: implicitHeight
focus: true
verticalScrollBarPolicy: Qt.ScrollBarAlwaysOff
horizontalScrollBarPolicy: Qt.ScrollBarAlwaysOff
Kube.MouseProxy {
anchors.fill: parent
target: scrollHelper
forwardWheelEvents: true
}
flickableItem.boundsBehavior: Flickable.StopAtBounds
selection: ItemSelectionModel {
model: treeView.model
//TODO once we don't loose focus to the next view
// onCurrentChanged: {
// treeView.activated(selection.currentIndex)
// }
//TODO scroll view so the current index is always visible
}
onActiveFocusChanged: {
//Set an initially focused item when the list view receives focus
if (activeFocus) {
//If there is a selected index, reset to selected index.
if (root.activeIndex) {
treeView.selection.setCurrentIndex(root.activeIndex, ItemSelectionModel.Current)
} else {
treeView.selection.setCurrentIndex(model.index(0, 0), ItemSelectionModel.ClearAndSelect)
}
} else {
selection.clearCurrentIndex()
}
}
Keys.onReturnPressed: treeView.activated(selection.currentIndex)
//Forward the signal because on a desktopsystem activated is only triggerd by double clicks
onClicked: treeView.activated(index)
onActivated: root.activated(index)
alternatingRowColors: false
headerVisible: false
style: TreeViewStyle {
rowDelegate: Controls2.Control {
id: delegateRoot
//FIXME Uses internal API to get to the model index
property bool isActive: root.activeIndex === treeView.__model.mapRowToModelIndex(styleData.row)
height: Kube.Units.gridUnit * 1.5
//FIXME This is the only way I could find to get the correct width. parent.width is way to wide
width: parent.parent.parent ? parent.parent.parent.width : 0
focus: false
hoverEnabled: true
Kube.DelegateBackground {
anchors.fill: parent
color: Kube.Colors.textColor
focused: styleData.selected || delegateRoot.hovered
selected: isActive
}
}
frame: Rectangle {
color: Kube.Colors.textColor
}
branchDelegate: Kube.Label {
width: 16
height: width
anchors.verticalCenter: parent.verticalCenter
anchors.left: parent.left
anchors.leftMargin: Kube.Units.smallSpacing
color: Kube.Colors.viewBackgroundColor
text: styleData.isExpanded ? "-" : "+"
}
itemDelegate: Item {
DropArea {
anchors.fill: parent
Rectangle {
anchors.fill: parent
color: Kube.Colors.viewBackgroundColor
opacity: 0.3
visible: parent.containsDrag
}
onDropped: root.dropped(drop, model)
}
Kube.Label {
anchors {
verticalCenter: parent.verticalCenter
left: parent.left
right: parent.right
}
text: styleData.value
elide: Qt.ElideRight
color: Kube.Colors.viewBackgroundColor
}
}
backgroundColor: Kube.Colors.textColor
highlightedTextColor: Kube.Colors.highlightedTextColor
}
}
}
}
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