225 lines
8.2 KiB
QML
225 lines
8.2 KiB
QML
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2016 The Qt Company Ltd.
|
|
** Contact: https://www.qt.io/licensing/
|
|
**
|
|
** This file is part of the Qt Quick Controls module of the Qt Toolkit.
|
|
**
|
|
** $QT_BEGIN_LICENSE:LGPL$
|
|
** Commercial License Usage
|
|
** Licensees holding valid commercial Qt licenses may use this file in
|
|
** accordance with the commercial license agreement provided with the
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
** a written agreement between you and The Qt Company. For licensing terms
|
|
** and conditions see https://www.qt.io/terms-conditions. For further
|
|
** information use the contact form at https://www.qt.io/contact-us.
|
|
**
|
|
** GNU Lesser General Public License Usage
|
|
** Alternatively, this file may be used under the terms of the GNU Lesser
|
|
** General Public License version 3 as published by the Free Software
|
|
** Foundation and appearing in the file LICENSE.LGPL3 included in the
|
|
** packaging of this file. Please review the following information to
|
|
** ensure the GNU Lesser General Public License version 3 requirements
|
|
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
|
|
**
|
|
** GNU General Public License Usage
|
|
** Alternatively, this file may be used under the terms of the GNU
|
|
** General Public License version 2.0 or (at your option) the GNU General
|
|
** Public license version 3 or any later version approved by the KDE Free
|
|
** Qt Foundation. The licenses are as published by the Free Software
|
|
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
|
|
** included in the packaging of this file. Please review the following
|
|
** information to ensure the GNU General Public License requirements will
|
|
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
|
|
** https://www.gnu.org/licenses/gpl-3.0.html.
|
|
**
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
import QtQuick 2.2
|
|
import QtQuick.Controls 1.2
|
|
import QtQuick.Controls.Private 1.0
|
|
|
|
/*!
|
|
\qmltype ScrollViewHeader
|
|
\internal
|
|
\inqmlmodule QtQuick.Controls.Private
|
|
*/
|
|
Item {
|
|
id: scrollHelper
|
|
|
|
property alias horizontalScrollBar: hscrollbar
|
|
property alias verticalScrollBar: vscrollbar
|
|
property bool blockUpdates: false
|
|
property int availableHeight
|
|
property int availableWidth
|
|
property int contentHeight
|
|
property int contentWidth
|
|
property bool active
|
|
property int horizontalScrollBarPolicy: Qt.ScrollBarAsNeeded
|
|
property int verticalScrollBarPolicy: Qt.ScrollBarAsNeeded
|
|
|
|
|
|
property int leftMargin: outerFrame && root.__style ? root.__style.padding.left : 0
|
|
property int rightMargin: outerFrame && root.__style ? root.__style.padding.right : 0
|
|
property int topMargin: outerFrame && root.__style ? root.__style.padding.top : 0
|
|
property int bottomMargin: outerFrame && root.__style ? root.__style.padding.bottom : 0
|
|
|
|
anchors.fill: parent
|
|
|
|
Timer {
|
|
id: layoutTimer
|
|
interval: 0;
|
|
onTriggered: {
|
|
blockUpdates = true;
|
|
scrollHelper.contentWidth = flickableItem !== null ? flickableItem.contentWidth : 0
|
|
scrollHelper.contentHeight = flickableItem !== null ? flickableItem.contentHeight : 0
|
|
scrollHelper.availableWidth = viewport.width
|
|
scrollHelper.availableHeight = viewport.height
|
|
blockUpdates = false;
|
|
}
|
|
}
|
|
|
|
Connections {
|
|
target: viewport
|
|
onWidthChanged: layoutTimer.running = true
|
|
onHeightChanged: layoutTimer.running = true
|
|
}
|
|
|
|
Connections {
|
|
target: flickableItem
|
|
onContentWidthChanged: layoutTimer.running = true
|
|
onContentHeightChanged: layoutTimer.running = true
|
|
onContentXChanged: {
|
|
hscrollbar.flash()
|
|
vscrollbar.flash()
|
|
}
|
|
onContentYChanged: {
|
|
hscrollbar.flash()
|
|
vscrollbar.flash()
|
|
}
|
|
}
|
|
|
|
Loader {
|
|
id: cornerFill
|
|
z: 1
|
|
sourceComponent: __style ? __style.corner : null
|
|
anchors.right: parent.right
|
|
anchors.bottom: parent.bottom
|
|
anchors.bottomMargin: bottomMargin
|
|
anchors.rightMargin: rightMargin
|
|
width: visible ? vscrollbar.width : 0
|
|
height: visible ? hscrollbar.height : 0
|
|
visible: hscrollbar.visible && !hscrollbar.isTransient && vscrollbar.visible && !vscrollbar.isTransient
|
|
}
|
|
|
|
ScrollBar {
|
|
id: hscrollbar
|
|
readonly property int scrollAmount: contentWidth - availableWidth
|
|
readonly property bool scrollable: scrollAmount > 0
|
|
isTransient: !!__panel && !!__panel.isTransient
|
|
active: !!__panel && (__panel.sunken || __panel.activeControl !== "none")
|
|
enabled: !isTransient || __panel.visible
|
|
orientation: Qt.Horizontal
|
|
visible: horizontalScrollBarPolicy == Qt.ScrollBarAsNeeded ? scrollable : horizontalScrollBarPolicy == Qt.ScrollBarAlwaysOn
|
|
height: visible ? implicitHeight : 0
|
|
z: 1
|
|
maximumValue: scrollable ? scrollAmount : 0
|
|
minimumValue: 0
|
|
anchors.bottom: parent.bottom
|
|
anchors.left: parent.left
|
|
anchors.right: cornerFill.left
|
|
anchors.leftMargin: leftMargin
|
|
anchors.bottomMargin: bottomMargin
|
|
onScrollAmountChanged: {
|
|
if (flickableItem && (flickableItem.atXBeginning || flickableItem.atXEnd)) {
|
|
value = flickableItem.contentX - flickableItem.originX
|
|
}
|
|
}
|
|
onValueChanged: {
|
|
if (!blockUpdates) {
|
|
flickableItem.contentX = value + flickableItem.originX
|
|
}
|
|
}
|
|
Binding {
|
|
target: hscrollbar.__panel
|
|
property: "raised"
|
|
value: vscrollbar.active || scrollHelper.active
|
|
when: hscrollbar.isTransient
|
|
}
|
|
Binding {
|
|
target: hscrollbar.__panel
|
|
property: "visible"
|
|
value: true
|
|
when: !hscrollbar.isTransient || scrollHelper.active
|
|
}
|
|
function flash() {
|
|
if (hscrollbar.isTransient) {
|
|
hscrollbar.__panel.on = true
|
|
hscrollbar.__panel.visible = true
|
|
hFlasher.start()
|
|
}
|
|
}
|
|
Timer {
|
|
id: hFlasher
|
|
interval: 10
|
|
onTriggered: hscrollbar.__panel.on = false
|
|
}
|
|
}
|
|
|
|
ScrollBar {
|
|
id: vscrollbar
|
|
readonly property int scrollAmount: contentHeight - availableHeight
|
|
readonly property bool scrollable: scrollAmount > 0
|
|
isTransient: !!__panel && !!__panel.isTransient
|
|
active: !!__panel && (__panel.sunken || __panel.activeControl !== "none")
|
|
enabled: !isTransient || __panel.visible
|
|
orientation: Qt.Vertical
|
|
visible: verticalScrollBarPolicy === Qt.ScrollBarAsNeeded ? scrollable : verticalScrollBarPolicy === Qt.ScrollBarAlwaysOn
|
|
width: visible ? implicitWidth : 0
|
|
z: 1
|
|
anchors.bottom: cornerFill.top
|
|
maximumValue: scrollable ? scrollAmount + __viewTopMargin : 0
|
|
minimumValue: 0
|
|
anchors.right: parent.right
|
|
anchors.top: parent.top
|
|
anchors.topMargin: __scrollBarTopMargin + topMargin
|
|
anchors.rightMargin: rightMargin
|
|
onScrollAmountChanged: {
|
|
if (flickableItem && (flickableItem.atYBeginning || flickableItem.atYEnd)) {
|
|
value = flickableItem.contentY - flickableItem.originY
|
|
}
|
|
}
|
|
onValueChanged: {
|
|
if (flickableItem && !blockUpdates && enabled) {
|
|
flickableItem.contentY = value + flickableItem.originY
|
|
}
|
|
}
|
|
Binding {
|
|
target: vscrollbar.__panel
|
|
property: "raised"
|
|
value: hscrollbar.active || scrollHelper.active
|
|
when: vscrollbar.isTransient
|
|
}
|
|
Binding {
|
|
target: vscrollbar.__panel
|
|
property: "visible"
|
|
value: true
|
|
when: !vscrollbar.isTransient || scrollHelper.active
|
|
}
|
|
function flash() {
|
|
if (vscrollbar.isTransient) {
|
|
vscrollbar.__panel.on = true
|
|
vscrollbar.__panel.visible = true
|
|
vFlasher.start()
|
|
}
|
|
}
|
|
Timer {
|
|
id: vFlasher
|
|
interval: 10
|
|
onTriggered: vscrollbar.__panel.on = false
|
|
}
|
|
}
|
|
}
|