Rev 391 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
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| 305 | KeyOz | 1 | /* |
| 2 | * |
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| 3 | * This file is part of QMapControl, |
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| 4 | * an open-source cross-platform map widget |
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| 5 | * |
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| 6 | * Copyright (C) 2007 - 2008 Kai Winter |
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| 7 | * |
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| 8 | * This program is free software: you can redistribute it and/or modify |
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| 9 | * it under the terms of the GNU Lesser General Public License as published by |
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| 10 | * the Free Software Foundation, either version 3 of the License, or |
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| 11 | * (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU Lesser General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU Lesser General Public License |
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| 19 | * along with QMapControl. If not, see <http://www.gnu.org/licenses/>. |
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| 20 | * |
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| 21 | * Contact e-mail: kaiwinter@gmx.de |
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| 22 | * Program URL : http://qmapcontrol.sourceforge.net/ |
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| 23 | * |
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| 24 | */ |
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| 25 | |||
| 26 | #include "tilemapadapter.h" |
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| 27 | namespace qmapcontrol |
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| 28 | { |
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| 29 | TileMapAdapter::TileMapAdapter(const QString& host, const QString& serverPath, int tilesize, int minZoom, int maxZoom) |
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| 30 | :MapAdapter(host, serverPath, tilesize, minZoom, maxZoom) |
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| 31 | { |
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| 32 | PI = acos(-1.0); |
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| 33 | |||
| 34 | /* |
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| 35 | Initialize the "substring replace engine". First the string replacement |
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| 36 | in getQuery was made by QString().arg() but this was very slow. So this |
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| 37 | splits the servers path into substrings and when calling getQuery the |
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| 38 | substrings get merged with the parameters of the URL. |
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| 39 | Pretty complicated, but fast. |
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| 40 | */ |
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| 41 | param1 = serverPath.indexOf("%1"); |
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| 42 | param2 = serverPath.indexOf("%2"); |
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| 43 | param3 = serverPath.indexOf("%3"); |
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| 44 | |||
| 45 | int min = param1 < param2 ? param1 : param2; |
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| 46 | min = param3 < min ? param3 : min; |
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| 47 | |||
| 48 | int max = param1 > param2 ? param1 : param2; |
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| 49 | max = param3 > max ? param3 : max; |
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| 50 | |||
| 51 | int middle = param1+param2+param3-min-max; |
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| 52 | |||
| 53 | order[0][0] = min; |
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| 54 | if (min == param1) |
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| 55 | order[0][1] = 0; |
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| 56 | else if (min == param2) |
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| 57 | order[0][1] = 1; |
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| 58 | else |
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| 59 | order[0][1] = 2; |
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| 60 | |||
| 61 | order[1][0] = middle; |
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| 62 | if (middle == param1) |
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| 63 | order[1][1] = 0; |
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| 64 | else if (middle == param2) |
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| 65 | order[1][1] = 1; |
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| 66 | else |
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| 67 | order[1][1] = 2; |
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| 68 | |||
| 69 | order[2][0] = max; |
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| 70 | if (max == param1) |
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| 71 | order[2][1] = 0; |
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| 72 | else if(max == param2) |
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| 73 | order[2][1] = 1; |
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| 74 | else |
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| 75 | order[2][1] = 2; |
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| 76 | |||
| 77 | int zoom = max_zoom < min_zoom ? min_zoom - current_zoom : current_zoom; |
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| 78 | numberOfTiles = tilesonzoomlevel(zoom); |
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| 79 | loc.setNumberOptions(QLocale::OmitGroupSeparator); |
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| 80 | } |
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| 81 | |||
| 82 | TileMapAdapter::~TileMapAdapter() |
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| 83 | { |
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| 84 | } |
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| 85 | //TODO: pull out |
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| 86 | void TileMapAdapter::zoom_in() |
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| 87 | { |
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| 88 | if (min_zoom > max_zoom) |
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| 89 | { |
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| 90 | //current_zoom = current_zoom-1; |
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| 91 | current_zoom = current_zoom > max_zoom ? current_zoom-1 : max_zoom; |
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| 92 | } |
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| 93 | else if (min_zoom < max_zoom) |
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| 94 | { |
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| 95 | //current_zoom = current_zoom+1; |
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| 96 | current_zoom = current_zoom < max_zoom ? current_zoom+1 : max_zoom; |
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| 97 | } |
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| 98 | |||
| 99 | int zoom = max_zoom < min_zoom ? min_zoom - current_zoom : current_zoom; |
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| 100 | numberOfTiles = tilesonzoomlevel(zoom); |
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| 101 | |||
| 102 | } |
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| 103 | void TileMapAdapter::zoom_out() |
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| 104 | { |
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| 105 | if (min_zoom > max_zoom) |
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| 106 | { |
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| 107 | //current_zoom = current_zoom+1; |
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| 108 | current_zoom = current_zoom < min_zoom ? current_zoom+1 : min_zoom; |
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| 109 | } |
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| 110 | else if (min_zoom < max_zoom) |
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| 111 | { |
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| 112 | //current_zoom = current_zoom-1; |
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| 113 | current_zoom = current_zoom > min_zoom ? current_zoom-1 : min_zoom; |
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| 114 | } |
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| 115 | |||
| 116 | int zoom = max_zoom < min_zoom ? min_zoom - current_zoom : current_zoom; |
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| 117 | numberOfTiles = tilesonzoomlevel(zoom); |
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| 118 | } |
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| 119 | |||
| 120 | qreal TileMapAdapter::deg_rad(qreal x) const |
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| 121 | { |
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| 122 | return x * (PI/180.0); |
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| 123 | } |
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| 124 | qreal TileMapAdapter::rad_deg(qreal x) const |
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| 125 | { |
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| 126 | return x * (180/PI); |
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| 127 | } |
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| 128 | |||
| 129 | QString TileMapAdapter::query(int x, int y, int z) const |
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| 130 | { |
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| 131 | x = xoffset(x); |
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| 132 | y = yoffset(y); |
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| 133 | |||
| 134 | int a[3] = {z, x, y}; |
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| 135 | return QString(serverPath).replace(order[2][0],2, loc.toString(a[order[2][1]])) |
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| 136 | .replace(order[1][0],2, loc.toString(a[order[1][1]])) |
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| 137 | .replace(order[0][0],2, loc.toString(a[order[0][1]])); |
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| 138 | |||
| 139 | } |
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| 140 | |||
| 141 | QPoint TileMapAdapter::coordinateToDisplay(const QPointF& coordinate) const |
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| 142 | { |
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| 143 | qreal x = (coordinate.x()+180) * (numberOfTiles*mytilesize)/360.; // coord to pixel! |
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| 144 | qreal y = (1-(log(tan(PI/4+deg_rad(coordinate.y())/2)) /PI)) /2 * (numberOfTiles*mytilesize); |
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| 145 | |||
| 146 | return QPoint(int(x), int(y)); |
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| 147 | } |
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| 148 | |||
| 149 | QPointF TileMapAdapter::displayToCoordinate(const QPoint& point) const |
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| 150 | { |
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| 151 | qreal longitude = (point.x()*(360/(numberOfTiles*mytilesize)))-180; |
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| 152 | qreal latitude = rad_deg(atan(sinh((1-point.y()*(2/(numberOfTiles*mytilesize)))*PI))); |
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| 153 | |||
| 154 | return QPointF(longitude, latitude); |
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| 155 | |||
| 156 | } |
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| 157 | |||
| 158 | bool TileMapAdapter::isValid(int x, int y, int z) const |
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| 159 | { |
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| 160 | if (max_zoom < min_zoom) |
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| 161 | { |
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| 162 | z= min_zoom - z; |
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| 163 | } |
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| 164 | |||
| 165 | if (x<0 || x>pow(2,z)-1 || |
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| 166 | y<0 || y>pow(2,z)-1) |
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| 167 | { |
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| 168 | return false; |
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| 169 | } |
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| 170 | return true; |
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| 171 | |||
| 172 | } |
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| 173 | int TileMapAdapter::tilesonzoomlevel(int zoomlevel) const |
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| 174 | { |
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| 175 | return int(pow(2, zoomlevel)); |
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| 176 | } |
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| 177 | int TileMapAdapter::xoffset(int x) const |
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| 178 | { |
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| 179 | return x; |
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| 180 | } |
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| 181 | int TileMapAdapter::yoffset(int y) const |
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| 182 | { |
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| 183 | return y; |
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| 184 | } |
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| 185 | } |