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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Quick Controls module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.1
import QtQuick.Controls 1.0
import QtQuick.Controls.Private 1.0
/*!
\qmltype TabView
\inqmlmodule QtQuick.Controls 1.0
\since QtQuick.Controls 1.0
\ingroup views
\brief A control that allows the user to select one of multiple stacked items.
You can create a custom appearance for a TabView by
assigning a \l TabViewStyle.
*/
FocusScope {
id: root
implicitWidth: 150
implicitHeight: 150
/*! The current tab index */
property int currentIndex: 0
/*! The current tab count */
property int count: 0
/*! The visibility of the tab frame around contents */
property bool frameVisible: true
/*! The visibility of the tab bar */
property bool tabsVisible: true
/*!
\qmlproperty enumeration TabView::tabPosition
\list
\li Qt.TopEdge (default)
\li Qt.BottomEdge
\endlist
*/
property int tabPosition: Qt.TopEdge
/*! \internal */
default property alias data: stack.data
/*! Adds a new tab page with title with and optional Component.
Returns the newly added tab.
*/
function addTab(title, component) {
return insertTab(__tabs.count, title, component)
}
/*! Inserts a new tab with title at index, with an optional Component.
Returns the newly added tab.
*/
function insertTab(index, title, component) {
var tab = tabcomp.createObject(stack)
tab.sourceComponent = component
tab.parent = stack
tab.title = title
tab.__inserted = true
__tabs.insert(index, {tab: tab})
__setOpacities()
return tab
}
/*! Removes and destroys a tab at the given \a index. */
function removeTab(index) {
var tab = __tabs.get(index).tab
__tabs.remove(index, 1)
tab.destroy()
if (currentIndex > 0)
currentIndex--
__setOpacities()
}
/*! Moves a tab \a from index \a to another. */
function moveTab(from, to) {
__tabs.move(from, to, 1)
if (currentIndex == from) {
currentIndex = to
} else {
var start = Math.min(from, to)
var end = Math.max(from, to)
if (currentIndex >= start && currentIndex <= end) {
if (from < to)
--currentIndex
else
++currentIndex
}
}
}
/*! Returns the \l Tab item at \a index. */
function tabAt(index) {
return __tabs.get(index).tab
}
/*! \internal */
property ListModel __tabs: ListModel { }
/*! \internal */
property Component style: Qt.createComponent(Settings.style + "/TabViewStyle.qml", root)
/*! \internal */
property var __styleItem: loader.item
onCurrentIndexChanged: __setOpacities()
/*! \internal */
function __setOpacities() {
for (var i = 0; i < __tabs.count; ++i) {
var child = __tabs.get(i).tab
child.visible = (i == currentIndex ? true : false)
}
count = __tabs.count
}
activeFocusOnTab: false
Component {
id: tabcomp
Tab {}
}
TabBar {
id: tabbarItem
objectName: "tabbar"
tabView: root
style: loader.item
anchors.top: parent.top
anchors.left: root.left
anchors.right: root.right
}
Loader {
id: loader
z: tabbarItem.z - 1
sourceComponent: style
property var __control: root
}
Loader {
id: frameLoader
z: tabbarItem.z - 1
anchors.fill: parent
anchors.topMargin: tabPosition === Qt.TopEdge && tabbarItem && tabsVisible ? Math.max(0, tabbarItem.height - baseOverlap) : 0
anchors.bottomMargin: tabPosition === Qt.BottomEdge && tabbarItem && tabsVisible ? Math.max(0, tabbarItem.height -baseOverlap) : 0
sourceComponent: frameVisible && loader.item ? loader.item.frame : null
property int baseOverlap: __styleItem ? __styleItem.frameOverlap : 0
Item {
id: stack
anchors.fill: parent
anchors.margins: (frameVisible ? frameWidth : 0)
anchors.topMargin: anchors.margins + (style =="mac" ? 6 : 0)
anchors.bottomMargin: anchors.margins + (style =="mac" ? 6 : 0)
property int frameWidth
property string style
Component.onCompleted: addTabs(stack.children)
function addTabs(tabs) {
var tabAdded = false
for (var i = 0 ; i < tabs.length ; ++i) {
var tab = tabs[i]
if (!tab.__inserted && tab.Accessible.role === Accessible.LayeredPane) {
tab.__inserted = true
if (tab.parent === root) {
tab.parent = stack
// a tab added dynamically by Component::createObject() and passing the
// tab view as a parent should also get automatically removed when destructed
tab.Component.onDestruction.connect(stack.onDynamicTabDestroyed.bind(tab))
}
__tabs.append({tab: tab})
tabAdded = true
}
}
if (tabAdded)
__setOpacities()
}
function onDynamicTabDestroyed() {
for (var i = 0; i < stack.children.length; ++i) {
if (this === stack.children[i]) {
root.removeTab(i)
break
}
}
}
}
onLoaded: { item.z = -1 }
}
onChildrenChanged: stack.addTabs(root.children)
states: [
State {
name: "Bottom"
when: tabPosition === Qt.BottomEdge && tabbarItem != undefined
PropertyChanges {
target: tabbarItem
anchors.topMargin: -frameLoader.baseOverlap
}
AnchorChanges {
target: tabbarItem
anchors.top: frameLoader.bottom
}
}
]
}
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