File indexing completed on 2024-04-28 15:16:13
0001 /* 0002 SPDX-FileCopyrightText: 2005-2007 Torsten Rahn <tackat@kde.org> 0003 SPDX-FileCopyrightText: 2007 Inge Wallin <ingwa@kde.org> 0004 SPDX-FileCopyrightText: 2008 Patrick Spendrin <ps_ml@gmx.de> 0005 SPDX-FileCopyrightText: 2008 Jens-Michael Hoffmann <jensmh@gmx.de> 0006 0007 SPDX-License-Identifier: LGPL-2.0-or-later 0008 */ 0009 0010 #ifndef MARBLE_TILELOADERHELPER_H 0011 #define MARBLE_TILELOADERHELPER_H 0012 0013 #include "marble_export.h" 0014 0015 namespace Marble 0016 { 0017 0018 namespace TileLoaderHelper 0019 { 0020 /** 0021 * @brief Get the maximum number of tile rows for a given tile level. 0022 * @param levelZeroRows the number of rows in level zero 0023 * @param level the tile level 0024 * @return the maximum number of rows that a map level was tiled into. 0025 * If the tile level number is invalid then "-1" gets 0026 * returned so this case of wrong input data can get caught 0027 * by the code which makes use of it. 0028 */ 0029 MARBLE_EXPORT int levelToRow( int levelZeroRows, int level ); 0030 0031 /** 0032 * @brief Get the maximum number of tile columns for a given tile level. 0033 * @param levelZeroColumns the number of columns in level zero 0034 * @param level the tile level 0035 * @return the maximum number of columns that a map level was tiled into. 0036 * If the tile level number is invalid then "-1" gets 0037 * returned so this case of wrong input data can get caught 0038 * by the code which makes use of it. 0039 */ 0040 MARBLE_EXPORT int levelToColumn( int levelZeroColumns, int level ); 0041 0042 /** 0043 * @brief Get the tile level for the given maximum number of tile columns. 0044 * @param levelZeroRows the number of rows in level zero 0045 * @param row the maximum number of rows that a map level was tiled into. 0046 * @return the corresponding tile level. 0047 * If the number of rows is invalid then "-1" gets 0048 * returned so this case of wrong input data can get caught 0049 * by the code which makes use of it. 0050 */ 0051 MARBLE_EXPORT int rowToLevel( int levelZeroRows, int row ); 0052 0053 /** 0054 * @brief Get the tile level for the given maximum number of tile columns. 0055 * @param levelZeroColumns the number of columns in level zero 0056 * @param column the maximum number of columns that a map level was tiled into. 0057 * @return the corresponding tile level. 0058 * If the number of columns is invalid then "-1" gets 0059 * returned so this case of wrong input data can get caught 0060 * by the code which makes use of it. 0061 */ 0062 MARBLE_EXPORT int columnToLevel( int levelZeroColumns, int column ); 0063 } 0064 0065 } 0066 0067 #endif // MARBLE_TILELOADERHELPER_H