117 lines
4.8 KiB
QML
117 lines
4.8 KiB
QML
/****************************************************************************
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**
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** Copyright 2011 Marco Martin <mart@kde.org>
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Components project.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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import QtQuick 1.1
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Item {
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id: root
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Component.onCompleted: priv.layoutChildren()
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onChildrenChanged: priv.layoutChildren()
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onWidthChanged: priv.layoutChildren()
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onHeightChanged: priv.layoutChildren()
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Keys.onPressed: {
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if (event.key == Qt.Key_Right || event.key == Qt.Key_Left) {
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if (event.key == Qt.Key_Right || priv.mirrored) {
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var oldIndex = priv.currentButtonIndex()
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if (oldIndex != root.children.length - 1) {
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priv.tabGroup.currentTab = root.children[oldIndex + 1].tab
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event.accepted = true
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}
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} else if (event.key == Qt.Key_Left || priv.mirrored) {
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var oldIndex = priv.currentButtonIndex()
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if (oldIndex != 0) {
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priv.tabGroup.currentTab = root.children[oldIndex - 1].tab
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event.accepted = true
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}
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}
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}
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}
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focus: true
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QtObject {
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id: priv
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property Item firstButton: root.children.length > 0 ? root.children[0] : null
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property Item firstTab: firstButton ? (firstButton.tab != null ? firstButton.tab : null) : null
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property Item tabGroup: firstTab ? (firstTab.parent ? firstTab.parent.parent : null) : null
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property bool mirrored: root.LayoutMirroring.enabled
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onMirroredChanged: layoutChildren()
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function currentButtonIndex() {
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for (var i = 0; i < root.children.length; ++i) {
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if (root.children[i].tab == tabGroup.currentTab)
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return i
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}
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return -1
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}
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function layoutChildren() {
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var childCount = root.children.length
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var contentWidth = 0
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var contentHeight = 0
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if (childCount != 0) {
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var itemWidth = root.width / childCount
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var itemIndex = mirrored ? childCount - 1 : 0
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var increment = mirrored ? - 1 : 1
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for (var i = 0; i < childCount; ++i, itemIndex += increment) {
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var child = root.children[itemIndex]
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child.x = i * itemWidth
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child.y = 0
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child.width = itemWidth
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child.height = root.height
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if (child.implicitWidth != undefined) {
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contentWidth = Math.max(contentWidth, (child.implicitWidth + buttonFrame.margins.left*2 + buttonFrame.margins.right*2) * childCount)
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contentHeight = Math.max(contentHeight, (child.implicitHeight + buttonFrame.margins.top + buttonFrame.margins.bottom))
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}
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}
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}
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root.implicitWidth = contentWidth
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root.implicitHeight = contentHeight
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}
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}
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}
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