plasma-framework/declarativeimports/plasmacomponents/qml/TabButton.qml
2012-12-23 22:55:03 +01:00

173 lines
5.9 KiB
QML

/****************************************************************************
**
** Copyright 2011 Marco Martin <mart@kde.org>
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Components project.
**
** $QT_BEGIN_LICENSE:BSD$
** 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 Nokia Corporation 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 1.1
import "private/AppManager.js" as Utils
import org.kde.plasma.core 0.1 as PlasmaCore
/**
* A simple tab button which is using the plasma theme.
*/
Item {
id: root
// Common Public API
/**
* The reference to the tab content (one of the children of a TabGroup,
* usually a Page) that is activated when this TabButton is clicked.
*/
property Item tab
/**
* True if the button is checked, false otherwise.
*/
property bool checked: (internal.tabGroup == null) ? (internal.tabBar.currentTab == root) : (internal.tabGroup.currentTab == tab)
/**
* True if the button is being pressed, false otherwise.
*/
property bool pressed: mouseArea.pressed == true && mouseArea.containsMouse
/**
* type:string
* The text for the button.
*/
property alias text: label.text
/**
* type:string
* Icon for the button. It can be a Freedesktop icon name, a full path to a
* png/svg file, or any name for which the application has an image handler
* registered.
*/
property alias iconSource: imageLoader.source
/**
* Emitted when the button is clicked.
*/
signal clicked
implicitWidth: label.implicitWidth + (internal.portrait ? 0 : (iconSource != null ? 16 : 0))
implicitHeight: label.implicitHeight + (internal.portrait ? (iconSource != null ? 16 : 0) : 0)
opacity: enabled ? 1 : 0.6
//long notation to not make it overwritten by implementations
Connections {
target: root
onPressedChanged: {
//TabBar is the granparent
internal.tabBar.currentTab = root
internal.tabBar.forceActiveFocus()
}
onClicked: {
if (internal.tabGroup) {
internal.tabGroup.currentTab = tab
}
//TabBar is the granparent, done here too in case of no tabgroup
internal.tabBar.currentTab = root
}
onVisibleChanged: root.parent.childrenChanged()
}
QtObject {
id: internal
property Item tabBar: Utils.findParent(root, "currentTab")
property Item tabGroup: Utils.findParent(tab, "currentTab")
property bool portrait: root.height >= label.paintedHeight + 16
function click() {
root.clicked()
if (internal.tabGroup) {
internal.tabGroup.currentTab = tab
}
}
Component.onCompleted: {
if (internal.tabGroup && internal.tabGroup.currentTab == tab) {
internal.tabGroup.currentTab = tab
}
}
}
Label {
id: label
objectName: "label"
anchors {
top: internal.portrait && iconSource != null ? imageLoader.bottom : parent.top
left: internal.portrait || iconSource == null ? parent.left : imageLoader.right
leftMargin: iconSource == null ? 0 : theme.defaultFont.mSize.width
right: parent.right
bottom: parent.bottom
}
elide: Text.ElideRight
horizontalAlignment: !internal.portrait && iconSource != null ? Text.AlignLeft : Text.AlignHCenter
verticalAlignment: Text.AlignVCenter
color: root.checked ? theme.buttonTextColor : theme.textColor
}
PlasmaCore.IconItem {
id: imageLoader
implicitWidth: internal.portrait ? Math.max(theme.smallIconSize, root.height - (label.text ? label.height : 0)) : Math.max(theme.smallIconSize, root.height)
implicitHeight: implicitWidth
anchors {
left: internal.portrait ? undefined : parent.left
horizontalCenter: internal.portrait ? parent.horizontalCenter : undefined
verticalCenter: internal.portrait ? undefined : parent.verticalCenter
}
}
MouseArea {
id: mouseArea
onClicked: root.clicked()
anchors.fill: parent
}
}