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Diffstat (limited to 'examples/declarative/rssnews/content/ScrollBar.qml')
| -rw-r--r-- | examples/declarative/rssnews/content/ScrollBar.qml | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/examples/declarative/rssnews/content/ScrollBar.qml b/examples/declarative/rssnews/content/ScrollBar.qml new file mode 100644 index 0000000000..e54be7b6a8 --- /dev/null +++ b/examples/declarative/rssnews/content/ScrollBar.qml @@ -0,0 +1,107 @@ +/**************************************************************************** +** +** 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 QtDeclarative module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 1.0 + +Item { + id: container + + property variant scrollArea + property variant orientation: Qt.Vertical + + opacity: 0 + + function position() + { + var ny = 0; + if (container.orientation == Qt.Vertical) + ny = scrollArea.visibleArea.yPosition * container.height; + else + ny = scrollArea.visibleArea.xPosition * container.width; + if (ny > 2) return ny; else return 2; + } + + function size() + { + var nh, ny; + + if (container.orientation == Qt.Vertical) + nh = scrollArea.visibleArea.heightRatio * container.height; + else + nh = scrollArea.visibleArea.widthRatio * container.width; + + if (container.orientation == Qt.Vertical) + ny = scrollArea.visibleArea.yPosition * container.height; + else + ny = scrollArea.visibleArea.xPosition * container.width; + + if (ny > 3) { + var t; + if (container.orientation == Qt.Vertical) + t = Math.ceil(container.height - 3 - ny); + else + t = Math.ceil(container.width - 3 - ny); + if (nh > t) return t; else return nh; + } else return nh + ny; + } + + Rectangle { anchors.fill: parent; color: "Black"; opacity: 0.3 } + + BorderImage { + source: "images/scrollbar.png" + border { left: 1; right: 1; top: 1; bottom: 1 } + x: container.orientation == Qt.Vertical ? 2 : position() + width: container.orientation == Qt.Vertical ? container.width - 4 : size() + y: container.orientation == Qt.Vertical ? position() : 2 + height: container.orientation == Qt.Vertical ? size() : container.height - 4 + } + + states: State { + name: "visible" + when: container.orientation == Qt.Vertical ? scrollArea.movingVertically : scrollArea.movingHorizontally + PropertyChanges { target: container; opacity: 1.0 } + } + + transitions: Transition { + from: "visible"; to: "" + NumberAnimation { properties: "opacity"; duration: 600 } + } +} |