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https://gitgud.io/wackyideas/aerothemeplasma.git
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245 lines
10 KiB
QML
245 lines
10 KiB
QML
/*
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KWin - the KDE window manager
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This file is part of the KDE project.
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SPDX-FileCopyrightText: 2020 Chris Holland <zrenfire@gmail.com>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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import QtQuick 2.0
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import QtQuick.Layouts 1.1
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import org.kde.plasma.core 2.0 as PlasmaCore
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import org.kde.plasma.components 3.0 as PlasmaComponents3
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import org.kde.kwin 2.0 as KWin
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import QtGraphicalEffects 1.15
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// https://techbase.kde.org/Development/Tutorials/KWin/WindowSwitcher
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// https://github.com/KDE/kwin/blob/master/tabbox/switcheritem.h
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KWin.Switcher {
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id: tabBox
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currentIndex: thumbnailGridView.currentIndex
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PlasmaCore.Dialog {
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id: dialog
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location: PlasmaCore.Types.Floating
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visible: tabBox.visible
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opacity: tabBox.visible
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flags: Qt.X11BypassWindowManagerHint | Qt.WindowStaysOnTopHint | Qt.Popup
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x: tabBox.screenGeometry.x + tabBox.screenGeometry.width * 0.5 - dialogMainItem.width * 0.5
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y: tabBox.screenGeometry.y + tabBox.screenGeometry.height * 0.5 - dialogMainItem.height * 0.5
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mainItem: Item {
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id: dialogMainItem
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focus: true
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property int maxWidth: tabBox.screenGeometry.width * 0.9
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property int maxHeight: tabBox.screenGeometry.height * 0.7
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property real screenFactor: tabBox.screenGeometry.width / tabBox.screenGeometry.height
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property int maxGridColumnsByWidth: Math.floor(maxWidth / thumbnailGridView.cellWidth)
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property int gridColumns: { // Simple greedy algorithm
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// respect screenGeometry
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const c = Math.min(thumbnailGridView.count, maxGridColumnsByWidth);
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const residue = thumbnailGridView.count % c;
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if (residue == 0) {
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return c;
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}
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// start greedy recursion
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return columnCountRecursion(c, c, c - residue);
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}
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property int gridRows: Math.ceil(thumbnailGridView.count / gridColumns)
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property int optimalWidth: thumbnailGridView.cellWidth * gridColumns
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property int optimalHeight: thumbnailGridView.cellHeight * gridRows
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width: Math.min(Math.max(thumbnailGridView.cellWidth, optimalWidth), maxWidth)
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height: Math.min(Math.max(thumbnailGridView.cellHeight, optimalHeight) + windowTitle.height + PlasmaCore.Units.smallSpacing*4, maxHeight)
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clip: true
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// Step for greedy algorithm
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function columnCountRecursion(prevC, prevBestC, prevDiff) {
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const c = prevC - 1;
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// don't increase vertical extent more than horizontal
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// and don't exceed maxHeight
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if (prevC * prevC <= thumbnailGridView.count + prevDiff ||
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maxHeight < Math.ceil(thumbnailGridView.count / c) * thumbnailGridView.cellHeight) {
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return prevBestC;
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}
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const residue = thumbnailGridView.count % c;
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// halts algorithm at some point
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if (residue == 0) {
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return c;
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}
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// empty slots
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const diff = c - residue;
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// compare it to previous count of empty slots
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if (diff < prevDiff) {
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return columnCountRecursion(c, c, diff);
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} else if (diff == prevDiff) {
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// when it's the same try again, we'll stop early enough thanks to the landscape mode condition
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return columnCountRecursion(c, prevBestC, diff);
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}
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// when we've found a local minimum choose this one (greedy)
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return columnCountRecursion(c, prevBestC, diff);
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}
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// Just to get the margin sizes
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PlasmaCore.FrameSvgItem {
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id: hoverItem
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imagePath: "widgets/viewitem"
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prefix: "hover"
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visible: false
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}
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Text {
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id: windowTitle
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anchors {
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top: parent.top
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topMargin: PlasmaCore.Units.smallSpacing*2
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left: parent.left
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right: parent.right
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}
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font.pixelSize: 16
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color: "black"
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horizontalAlignment: Text.AlignHCenter
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text: thumbnailGridView.currentItem ? thumbnailGridView.currentItem.caption : ""
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elide: Text.ElideRight
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renderType: Text.NativeRendering
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}
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Glow {
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anchors.fill: windowTitle
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radius: 15
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samples: 31
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color: "#77ffffff"
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spread: 0.60
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source: windowTitle
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cached: true
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}
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GridView {
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id: thumbnailGridView
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anchors {
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top: windowTitle.bottom
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topMargin: PlasmaCore.Units.smallSpacing*2
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left: parent.left
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right: parent.right
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bottom: parent.bottom
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}
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model: tabBox.model
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property int iconSize: PlasmaCore.Units.iconSizes.medium
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property int captionRowHeight: 30 * PlasmaCore.Units.devicePixelRatio // The close button is 30x30 in Breeze
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property int thumbnailWidth: 125 * PlasmaCore.Units.devicePixelRatio
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property int thumbnailHeight: thumbnailWidth * (1.0/dialogMainItem.screenFactor)
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cellWidth: hoverItem.margins.left + thumbnailWidth + hoverItem.margins.right
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cellHeight: hoverItem.margins.top + thumbnailHeight + hoverItem.margins.bottom
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keyNavigationWraps: true
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highlightMoveDuration: 0
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delegate: Item {
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id: thumbnailGridItem
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width: thumbnailGridView.cellWidth
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height: thumbnailGridView.cellHeight
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property variant caption: model.caption
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MouseArea {
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id: ma
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anchors.fill: parent
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hoverEnabled: true
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acceptedButtons: Qt.LeftButton | Qt.RightButton | Qt.MiddleButton
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onClicked: {
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if(mouse.button === Qt.RightButton) {
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thumbnailGridItem.select();
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} else if(mouse.button === Qt.MiddleButton) {
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tabBox.model.close(index);
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} else if(mouse.button === Qt.LeftButton) {
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thumbnailGridView.model.activate(index);
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return;
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}
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}
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}
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function select() {
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thumbnailGridView.currentIndex = index;
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thumbnailGridView.currentIndexChanged(thumbnailGridView.currentIndex);
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}
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PlasmaCore.FrameSvgItem {
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id: highlightItem
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imagePath: "widgets/viewitem"
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anchors.fill: parent
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prefix: {
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if((ma.containsMouse && thumbnailGridView.currentIndex === index) || ma.containsPress) return "selected+hover";
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else if(thumbnailGridView.currentIndex === index) return "selected";
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else if(ma.containsMouse) return "hover";
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}
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}
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ColumnLayout {
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z: 0
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spacing: 0
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anchors.fill: parent
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anchors.leftMargin: hoverItem.margins.left
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anchors.topMargin: hoverItem.margins.top
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anchors.rightMargin: hoverItem.margins.right
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anchors.bottomMargin: hoverItem.margins.bottom
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// KWin.ThumbnailItem needs a container
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// otherwise it will be drawn the same size as the parent ColumnLayout
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Item {
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Layout.fillWidth: true
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Layout.fillHeight: true
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// Cannot draw anything (like an icon) on top of thumbnail
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KWin.ThumbnailItem {
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id: thumbnailItem
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anchors.fill: parent
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wId: windowId
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}
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PlasmaCore.IconItem {
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id: iconItem
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width: thumbnailGridView.iconSize
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height: width
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anchors.bottom: parent.bottom
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anchors.right: parent.right
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source: model.icon
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usesPlasmaTheme: false
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visible: tabBox.compositing
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}
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}
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}
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} // GridView.delegate
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Connections {
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target: tabBox
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function onCurrentIndexChanged() {
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thumbnailGridView.currentIndex = tabBox.currentIndex;
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}
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}
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} // GridView
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Keys.onPressed: {
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if (event.key == Qt.Key_Left) {
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thumbnailGridView.moveCurrentIndexLeft();
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} else if (event.key == Qt.Key_Right) {
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thumbnailGridView.moveCurrentIndexRight();
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} else if (event.key == Qt.Key_Up) {
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thumbnailGridView.moveCurrentIndexUp();
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} else if (event.key == Qt.Key_Down) {
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thumbnailGridView.moveCurrentIndexDown();
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} else {
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return;
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}
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thumbnailGridView.currentIndexChanged(thumbnailGridView.currentIndex);
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}
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} // Dialog.mainItem
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} // Dialog
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}
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