File indexing completed on 2024-05-12 15:54:20
0001 /* 0002 * Copyright (C) 2001-2015 Klaralvdalens Datakonsult AB. All rights reserved. 0003 * 0004 * This file is part of the KD Chart library. 0005 * 0006 * This program is free software; you can redistribute it and/or 0007 * modify it under the terms of the GNU General Public License as 0008 * published by the Free Software Foundation; either version 2 of 0009 * the License, or (at your option) any later version. 0010 * 0011 * This program is distributed in the hope that it will be useful, 0012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 0013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 0014 * GNU General Public License for more details. 0015 * 0016 * You should have received a copy of the GNU General Public License 0017 * along with this program. If not, see <https://www.gnu.org/licenses/>. 0018 */ 0019 0020 #ifndef ZOOMPARAMETERS_H 0021 #define ZOOMPARAMETERS_H 0022 0023 // 0024 // W A R N I N G 0025 // ------------- 0026 // 0027 // This file is not part of the KD Chart API. It exists purely as an 0028 // implementation detail. This header file may change from version to 0029 // version without notice, or even be removed. 0030 // 0031 // We mean it. 0032 // 0033 0034 namespace KChart { 0035 /** 0036 * ZoomParameters stores the center and the factor of zooming internally 0037 * \internal 0038 */ 0039 class ZoomParameters { 0040 public: 0041 ZoomParameters() 0042 : xFactor( 1.0 ), 0043 yFactor( 1.0 ), 0044 xCenter( 0.5 ), 0045 yCenter( 0.5) 0046 { 0047 } 0048 0049 ZoomParameters( qreal xFactor, qreal yFactor, const QPointF& center ) 0050 : xFactor( xFactor ), 0051 yFactor( yFactor ), 0052 xCenter( center.x() ), 0053 yCenter( center.y() ) 0054 { 0055 } 0056 0057 void setCenter( const QPointF& center ) 0058 { 0059 xCenter = center.x(); 0060 yCenter = center.y(); 0061 } 0062 const QPointF center() const 0063 { 0064 return QPointF( xCenter, yCenter ); 0065 } 0066 0067 qreal xFactor; 0068 qreal yFactor; 0069 0070 qreal xCenter; 0071 qreal yCenter; 0072 }; 0073 } 0074 0075 #endif