1 | // %flair:license{ |
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2 | // This file is part of the Flair framework distributed under the |
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3 | // CECILL-C License, Version 1.0. |
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4 | // %flair:license} |
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5 | /**************************************************************************** |
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6 | ** |
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7 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). |
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8 | ** All rights reserved. |
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9 | ** Contact: Nokia Corporation (qt-info@nokia.com) |
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10 | ** |
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11 | ** This file is part of the documentation of Qt. It was originally |
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12 | ** published as part of Qt Quarterly. |
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13 | ** |
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14 | ** $QT_BEGIN_LICENSE:LGPL$ |
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15 | ** Commercial Usage |
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16 | ** Licensees holding valid Qt Commercial licenses may use this file in |
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17 | ** accordance with the Qt Commercial License Agreement provided with the |
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18 | ** Software or, alternatively, in accordance with the terms contained in |
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19 | ** a written agreement between you and Nokia. |
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20 | ** |
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21 | ** GNU Lesser General Public License Usage |
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22 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
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23 | ** General Public License version 2.1 as published by the Free Software |
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24 | ** Foundation and appearing in the file LICENSE.LGPL included in the |
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25 | ** packaging of this file. Please review the following information to |
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26 | ** ensure the GNU Lesser General Public License version 2.1 requirements |
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27 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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28 | ** |
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29 | ** In addition, as a special exception, Nokia gives you certain additional |
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30 | ** rights. These rights are described in the Nokia Qt LGPL Exception |
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31 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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32 | ** |
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33 | ** GNU General Public License Usage |
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34 | ** Alternatively, this file may be used under the terms of the GNU |
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35 | ** General Public License version 3.0 as published by the Free Software |
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36 | ** Foundation and appearing in the file LICENSE.GPL included in the |
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37 | ** packaging of this file. Please review the following information to |
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38 | ** ensure the GNU General Public License version 3.0 requirements will be |
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39 | ** met: http://www.gnu.org/copyleft/gpl.html. |
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40 | ** |
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41 | ** If you have questions regarding the use of this file, please contact |
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42 | ** Nokia at qt-info@nokia.com. |
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43 | ** $QT_END_LICENSE$ |
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44 | ** |
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45 | ****************************************************************************/ |
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46 | |
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47 | #include <QApplication> |
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48 | #include <QGeoCoordinate> |
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49 | #include <QGraphicsScene> |
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50 | |
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51 | #include <QTimer> |
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52 | #include <QMenu> |
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53 | #include "mapwidget.h" |
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54 | #include "Landmark.h" |
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55 | #include "Map.h" |
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56 | |
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57 | using namespace QtMobility; |
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58 | |
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59 | MapWidget::MapWidget(Map *map, QWidget *parent) : QGraphicsView(parent) { |
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60 | setCursor(Qt::ArrowCursor); |
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61 | setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); |
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62 | setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); |
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63 | |
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64 | geoMap = 0; |
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65 | dragging = false; |
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66 | pressed = false; |
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67 | landmark_match = NULL; |
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68 | is_uptodate = true; |
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69 | this->map = map; |
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70 | |
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71 | m_scene = new QGraphicsScene(this); |
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72 | setScene(m_scene); |
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73 | setMouseTracking(true); |
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74 | |
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75 | landmarks = new QList<Landmark *>; |
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76 | landmarks_old = new QList<Landmark *>; |
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77 | } |
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78 | |
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79 | QGraphicsScene *MapWidget::scene(void) const { return m_scene; } |
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80 | |
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81 | void MapWidget::setMap(QGraphicsGeoMap *geoMap) { |
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82 | m_scene->clear(); |
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83 | m_scene->addItem(geoMap); |
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84 | this->geoMap = geoMap; |
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85 | geoMap->resize(m_scene->sceneRect().width(), m_scene->sceneRect().height()); |
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86 | } |
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87 | |
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88 | void MapWidget::mousePressEvent(QMouseEvent *event) { |
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89 | if (event->button() == Qt::LeftButton) { |
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90 | pressed = true; |
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91 | dragStartPosition = event->pos(); |
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92 | QTimer::singleShot(qApp->startDragTime(), this, SLOT(initDrag())); |
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93 | event->accept(); |
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94 | } |
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95 | |
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96 | if (event->button() == Qt::RightButton) { |
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97 | QMenu *menu = new QMenu("nom", this); |
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98 | |
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99 | if (cursor().shape() != Qt::PointingHandCursor) { |
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100 | QAction *b, *z; //*a, |
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101 | QList<QAction *> go_to_actions; |
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102 | QList<QAction *> centered_actions; |
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103 | |
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104 | QMenu *centered_menu = menu->addMenu("centered"); |
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105 | for (int i = 0; i < points.count(); i++) { |
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106 | QAction *action = centered_menu->addAction(points.at(i)); |
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107 | centered_actions.append(action); |
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108 | action->setCheckable(true); |
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109 | if (map->centeredPoint() == i) { |
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110 | action->setChecked(true); |
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111 | } else { |
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112 | action->setChecked(false); |
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113 | } |
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114 | } |
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115 | |
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116 | menu->addSeparator(); |
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117 | |
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118 | b = menu->addAction("place checkpoint"); |
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119 | QMenu *go_to_menu = menu->addMenu("go to"); |
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120 | for (int i = 0; i < landmarks->count(); i++) { |
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121 | QAction *action = |
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122 | go_to_menu->addAction(QString("checkpoint %1").arg(i + 1)); |
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123 | go_to_actions.append(action); |
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124 | } |
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125 | if (landmarks->count() == 0) |
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126 | go_to_menu->setEnabled(false); |
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127 | |
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128 | map->appendmenu(menu); |
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129 | z = map->execmenu(this, menu, event->globalPos()); |
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130 | |
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131 | for (int i = 0; i < centered_actions.count(); i++) { |
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132 | if (z == centered_actions.at(i)) { |
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133 | if (centered_actions.at(i)->isChecked()) { |
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134 | map->setCenteredPoint(i); |
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135 | } else { |
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136 | map->setCenteredPoint(-1); |
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137 | } |
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138 | |
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139 | break; |
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140 | } |
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141 | } |
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142 | |
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143 | if (z == b) { |
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144 | Landmark *landmark = new Landmark( |
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145 | geoMap, geoMap->screenPositionToCoordinate(event->pos()), |
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146 | QString("%1").arg(landmarks->count() + 1)); |
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147 | landmarks->append(landmark); |
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148 | is_uptodate = false; |
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149 | } |
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150 | for (int i = 0; i < go_to_actions.count(); i++) { |
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151 | if (z == go_to_actions.at(i)) { |
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152 | map->setCenteredPoint(-1); |
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153 | geoMap->setCenter(landmarks->at(i)->coordinate()); |
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154 | break; |
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155 | } |
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156 | } |
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157 | |
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158 | } else { |
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159 | QAction *a, *z; |
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160 | a = menu->addAction("delete"); |
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161 | z = menu->exec(event->globalPos()); |
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162 | |
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163 | if (z == a) { |
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164 | int i; |
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165 | for (i = 0; i < landmarks->count(); i++) { |
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166 | if (landmarks->at(i)->contains( |
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167 | geoMap->screenPositionToCoordinate(event->pos()))) { |
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168 | delete landmarks->at(i); |
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169 | landmarks->removeAt(i); |
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170 | break; |
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171 | } |
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172 | } |
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173 | for (int j = i; j < landmarks->count(); j++) { |
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174 | landmarks->at(j)->setText(QString("%1").arg(j + 1)); |
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175 | } |
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176 | } |
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177 | } |
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178 | |
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179 | delete menu; |
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180 | } |
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181 | } |
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182 | |
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183 | void MapWidget::initDrag(void) { |
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184 | if (pressed && map->isCentered() && landmark_match == NULL) { |
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185 | dragging = true; |
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186 | } |
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187 | } |
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188 | |
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189 | void MapWidget::mouseMoveEvent(QMouseEvent *event) { |
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190 | if (!geoMap) |
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191 | return; |
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192 | |
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193 | Qt::CursorShape new_cursor; |
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194 | if (dragging == true) { |
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195 | new_cursor = Qt::ClosedHandCursor; |
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196 | } else { |
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197 | if (map->isCentered()) { |
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198 | if (pressed == true) { |
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199 | new_cursor = Qt::ForbiddenCursor; |
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200 | } else { |
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201 | new_cursor = Qt::ArrowCursor; |
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202 | } |
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203 | } else { |
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204 | new_cursor = Qt::OpenHandCursor; |
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205 | } |
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206 | if (landmark_match != NULL) |
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207 | new_cursor = Qt::PointingHandCursor; |
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208 | } |
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209 | |
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210 | for (int i = 0; i < landmarks->count(); i++) { |
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211 | if (landmarks->at(i) |
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212 | ->contains(geoMap->screenPositionToCoordinate(event->pos()))) { |
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213 | if (pressed && landmark_match == NULL) { |
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214 | landmark_match = landmarks->at(i); |
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215 | landmark_match->setColor(Qt::red); |
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216 | is_uptodate = false; |
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217 | } |
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218 | new_cursor = Qt::PointingHandCursor; |
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219 | break; |
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220 | } |
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221 | } |
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222 | |
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223 | if (new_cursor != cursor().shape()) |
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224 | setCursor(new_cursor); |
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225 | |
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226 | QPoint v = event->pos() - dragStartPosition; |
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227 | |
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228 | if (dragging) { |
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229 | geoMap->pan(-v.x(), -v.y()); |
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230 | dragStartPosition = event->pos(); |
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231 | |
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232 | } else if (landmark_match != NULL) { |
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233 | landmark_match->setCoordinate( |
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234 | geoMap->screenPositionToCoordinate(event->pos())); |
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235 | |
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236 | } else if (pressed && !map->isCentered() && |
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237 | v.manhattanLength() >= qApp->startDragDistance()) { |
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238 | dragging = true; |
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239 | |
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240 | } else { |
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241 | dragStartPosition = event->pos(); |
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242 | emit positionChanged(geoMap->screenPositionToCoordinate(event->pos())); |
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243 | } |
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244 | |
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245 | event->accept(); |
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246 | } |
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247 | |
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248 | void MapWidget::mouseReleaseEvent(QMouseEvent *event) { |
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249 | pressed = false; |
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250 | landmark_match = NULL; |
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251 | |
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252 | if (dragging) { |
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253 | QPoint v = event->pos() - dragStartPosition; |
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254 | geoMap->pan(-v.x(), -v.y()); |
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255 | dragging = false; |
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256 | } |
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257 | |
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258 | event->accept(); |
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259 | } |
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260 | |
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261 | void MapWidget::resizeEvent(QResizeEvent *event) { |
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262 | if (geoMap) { |
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263 | m_scene->setSceneRect( |
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264 | QRectF(0, 0, event->size().width(), event->size().height())); |
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265 | geoMap->resize(event->size().width(), event->size().height()); |
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266 | } |
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267 | |
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268 | QGraphicsView::resizeEvent(event); |
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269 | } |
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270 | |
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271 | void MapWidget::wheelEvent(QWheelEvent *event) { |
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272 | int steps = event->delta() / 120; |
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273 | int zoom = qBound(geoMap->minimumZoomLevel(), geoMap->zoomLevel() + steps, |
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274 | geoMap->maximumZoomLevel()); |
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275 | |
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276 | if (zoom != geoMap->zoomLevel()) |
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277 | geoMap->setZoomLevel(zoom); |
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278 | // if(!centered) |
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279 | // geoMap->setCenter(geoMap->screenPositionToCoordinate(event->pos())); |
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280 | } |
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281 | |
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282 | void MapWidget::mouseDoubleClickEvent(QMouseEvent *event) { |
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283 | if (!map->isCentered()) |
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284 | geoMap->setCenter(geoMap->screenPositionToCoordinate(event->pos())); |
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285 | } |
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286 | |
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287 | bool MapWidget::IsUptodate(void) { return is_uptodate; } |
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288 | |
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289 | void MapWidget::SetUptodate(void) { |
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290 | for (int i = 0; i < landmarks_old->count(); i++) { |
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291 | delete landmarks_old->at(i); |
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292 | } |
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293 | landmarks_old->clear(); |
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294 | |
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295 | for (int i = 0; i < landmarks->count(); i++) { |
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296 | landmarks->at(i)->setColor(Qt::white); |
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297 | Landmark *landmark = |
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298 | new Landmark(geoMap, landmarks->at(i)->coordinate(), |
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299 | QString("%1").arg(landmarks->count() + 1)); |
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300 | landmarks_old->append(landmark); |
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301 | landmarks_old->at(i)->setVisible(false); |
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302 | } |
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303 | |
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304 | is_uptodate = true; |
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305 | } |
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306 | |
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307 | void MapWidget::Reset(void) { |
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308 | for (int i = 0; i < landmarks->count(); i++) { |
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309 | delete landmarks->at(i); |
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310 | } |
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311 | landmarks->clear(); |
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312 | |
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313 | for (int i = 0; i < landmarks_old->count(); i++) { |
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314 | Landmark *landmark = |
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315 | new Landmark(geoMap, landmarks_old->at(i)->coordinate(), |
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316 | QString("%1").arg(landmarks->count() + 1)); |
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317 | landmarks->append(landmark); |
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318 | landmarks->at(i)->setColor(Qt::white); |
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319 | } |
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320 | |
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321 | is_uptodate = true; |
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322 | } |
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323 | |
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324 | QList<Landmark *> *MapWidget::Landmarks(void) { return landmarks; } |
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325 | |
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326 | bool MapWidget::LandmarkToSend(int index) { |
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327 | if (index >= landmarks_old->count()) |
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328 | return true; |
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329 | |
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330 | if (landmarks->at(index)->coordinate() != |
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331 | landmarks_old->at(index)->coordinate()) |
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332 | return true; |
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333 | else |
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334 | return false; |
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335 | } |
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336 | void MapWidget::RemoveLandmarks(void) { |
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337 | for (int i = 0; i < landmarks->count(); i++) { |
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338 | landmarks->at(i)->RemoveLandmark(); |
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339 | } |
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340 | for (int i = 0; i < landmarks_old->count(); i++) { |
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341 | landmarks_old->at(i)->RemoveLandmark(); |
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342 | } |
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343 | } |
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344 | |
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345 | void MapWidget::AddLandmarks(QGraphicsGeoMap *geoMap) { |
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346 | for (int i = 0; i < landmarks->count(); i++) { |
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347 | landmarks->at(i)->AddLandmark(geoMap); |
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348 | } |
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349 | for (int i = 0; i < landmarks_old->count(); i++) { |
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350 | landmarks_old->at(i)->AddLandmark(geoMap); |
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351 | } |
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352 | } |
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353 | |
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354 | void MapWidget::AddLandmark(const QGeoCoordinate &coordinate) { |
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355 | Landmark *landmark = new Landmark(geoMap, coordinate, |
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356 | QString("%1").arg(landmarks->count() + 1)); |
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357 | landmarks->append(landmark); |
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358 | landmark->setColor(Qt::white); |
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359 | landmark = new Landmark(geoMap, coordinate, |
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360 | QString("%1").arg(landmarks_old->count() + 1)); |
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361 | landmarks_old->append(landmark); |
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362 | landmark->setColor(Qt::white); |
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363 | landmark->setVisible(false); |
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364 | } |
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365 | |
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366 | void MapWidget::AddPoint(QString name) { points.append(name); } |
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