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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 2.0
import QtQuick.Controls 1.0
import QtQuick.Controls.Private 1.0
/*!
\qmltype ScrollAreaHeader
\internal
\inqmlmodule QtQuick.Controls.Private 1.0
*/
Item {
id: wheelarea
property alias horizontalScrollBar: hscrollbar
property alias verticalScrollBar: vscrollbar
property bool blockUpdates: false
property int availableHeight : viewport ? viewport.height : 0
property int availableWidth: viewport ? viewport.width : 0
property int contentHeight: flickableItem ? flickableItem.contentHeight : 0
property int contentWidth: flickableItem ? flickableItem.contentWidth: 0
anchors.fill: parent
property int frameMargin: outerFrame ? frameWidth : 0
Connections {
target: flickableItem
onContentXChanged: {
hscrollbar.flash()
vscrollbar.flash()
}
onContentYChanged: {
hscrollbar.flash()
vscrollbar.flash()
}
}
StyleItem {
// This is the filled corner between scrollbars
id: cornerFill
elementType: "scrollareacorner"
width: visible ? vscrollbar.width : 0
anchors.right: parent.right
height: visible ? hscrollbar.height : 0
anchors.bottom: parent.bottom
anchors.bottomMargin: frameMargin
anchors.rightMargin: frameMargin
visible: hscrollbar.visible && !hscrollbar.isTransient && vscrollbar.visible && !vscrollbar.isTransient
}
ScrollBar {
id: hscrollbar
property bool isTransient: !!styleItem && styleItem.styleHint("transientScrollBars")
property bool active: !!styleItem && (styleItem.sunken || styleItem.activeControl != "none")
orientation: Qt.Horizontal
visible: contentWidth > availableWidth
height: visible ? implicitHeight : 0
z: 1
maximumValue: contentWidth > availableWidth ? contentWidth - availableWidth : 0
minimumValue: 0
anchors.bottom: parent.bottom
anchors.left: parent.left
anchors.right: cornerFill.left
anchors.leftMargin: frameMargin
anchors.bottomMargin: frameMargin
onValueChanged: {
if (!blockUpdates) {
flickableItem.contentX = value
}
}
Binding {
target: hscrollbar.styleItem
property: "raised"
value: vscrollbar.active
when: hscrollbar.isTransient
}
function flash() {
if (hscrollbar.isTransient) {
hscrollbar.styleItem.on = true
hscrollbar.styleItem.visible = true
}
}
}
ScrollBar {
id: vscrollbar
property bool isTransient: !!styleItem && styleItem.styleHint("transientScrollBars")
property bool active: !!styleItem && (styleItem.sunken || styleItem.activeControl != "none")
orientation: Qt.Vertical
// visible: contentHeight > availableHeight
width: visible ? implicitWidth : 0
z: 1
anchors.bottom: cornerFill.top
anchors.bottomMargin: hscrollbar.visible ? 0 : frameMargin
maximumValue: contentHeight > availableHeight ? contentHeight - availableHeight : 0
minimumValue: 0
anchors.right: parent.right
anchors.top: parent.top
anchors.topMargin: __scrollBarTopMargin + frameMargin
anchors.rightMargin: frameMargin
onValueChanged: {
if (flickableItem && !blockUpdates && enabled) {
flickableItem.contentY = value
}
}
Binding {
target: vscrollbar.styleItem
property: "raised"
value: hscrollbar.active
when: vscrollbar.isTransient
}
function flash() {
if (vscrollbar.isTransient) {
vscrollbar.styleItem.on = true
vscrollbar.styleItem.visible = true
}
}
}
}
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