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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing
**
** This file is part of Qt Creator.
**
** 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 http://www.qt.io/terms-conditions. For further information
** use the contact form at http://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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
import QtQuick 2.1
RangeMover {
id: selectionRange
property QtObject zoomer;
readonly property int creationInactive: 0
readonly property int creationFirstLimit: 1
readonly property int creationSecondLimit: 2
readonly property int creationFinished: 3
property bool ready: visible && creationState === creationFinished
property double startTime: rangeLeft * viewTimePerPixel + zoomer.windowStart
property double duration: Math.max(rangeWidth * viewTimePerPixel, 500)
property double endTime: startTime + duration
property double viewTimePerPixel: 1
property double creationReference : 0
property int creationState : creationInactive
function reset() {
rangeRight = rangeLeft + 1;
creationState = creationInactive;
creationReference = 0;
}
function setPos(pos) {
if (pos < 0)
pos = 0;
else if (pos > width)
pos = width;
switch (creationState) {
case creationFirstLimit:
creationReference = pos;
rangeLeft = pos;
rangeRight = pos + 1;
break;
case creationSecondLimit:
if (pos > creationReference) {
rangeLeft = creationReference;
rangeRight = pos;
} else if (pos < creationReference) {
rangeLeft = pos;
rangeRight = creationReference;
}
break;
}
}
}
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