diff --git a/downloadwidget.cpp b/downloadwidget.cpp new file mode 100644 index 0000000..7621670 --- /dev/null +++ b/downloadwidget.cpp @@ -0,0 +1,196 @@ +/* + * Copyright 2010 Niels Kummerfeldt + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301 USA + */ + +#include "downloadwidget.h" + +#include + +#include +#include +#include +#include +#include +#include +#include + +DownloadWidget::DownloadWidget(QWidget *parent) + : QWidget(parent), + m_manager(new QNetworkAccessManager(this)), + m_startLevel(0), + m_dlRect(), + m_dlList(), + m_up(new QLabel("N 0", this)), + m_left(new QLabel("E 0", this)), + m_right(new QLabel("E 0", this)), + m_bottom(new QLabel("N 0", this)), + m_levelSpinBox(new QSpinBox(this)), + m_dlProgress(new QProgressBar(this)) +{ + QGridLayout *layout = new QGridLayout(this); + layout->setContentsMargins(0, 0, 0, 0); + layout->setRowStretch(1, 1); + + m_up->setAlignment(Qt::AlignHCenter); + m_left->setAlignment(Qt::AlignLeft | Qt::AlignVCenter); + m_right->setAlignment(Qt::AlignRight | Qt::AlignVCenter); + m_bottom->setAlignment(Qt::AlignHCenter); + layout->addWidget(m_up, 0, 0, 1, 4); + layout->addWidget(m_left, 1, 0); + layout->addWidget(m_right, 1, 3); + layout->addWidget(m_bottom, 2, 0, 1, 4); + + QLabel *label = new QLabel(this); + label->setFrameShape(QLabel::Box); + layout->addWidget(label, 1, 1, 1, 2); + + label = new QLabel("Download up to level", this); + layout->addWidget(label, 3, 0, 1, 2); + + m_levelSpinBox->setRange(0, 18); + layout->addWidget(m_levelSpinBox, 3, 2, 1, 2); + + m_dlProgress->setFormat("%v / %m"); + layout->addWidget(m_dlProgress, 4, 0, 1, 4); + + QPushButton *start = new QPushButton("&Start", this); + connect(start, SIGNAL(clicked()), this, SLOT(startDownload())); + layout->addWidget(start, 5, 0, 1, 2); + + QPushButton *back = new QPushButton("&Back", this); + connect(back, SIGNAL(clicked()), this, SIGNAL(back())); + layout->addWidget(back, 5, 2, 1, 2); + + connect(m_manager, SIGNAL(finished(QNetworkReply*)), + this, SLOT(replyFinished(QNetworkReply*))); + + resize(320, 240); +} + +DownloadWidget::~DownloadWidget() +{ +} + +void DownloadWidget::setStartLevel(int level) +{ + if (level >= 17) { + level = 17; + } + m_startLevel = level + 1; + m_levelSpinBox->setMinimum(level + 1); + m_levelSpinBox->setValue(level + 1); +} + +void DownloadWidget::setDownloadRect(const QRectF &rect) +{ + m_dlRect = rect; + m_up->setText(lat2string(rect.bottom())); + m_left->setText(lon2string(rect.left())); + m_right->setText(lon2string(rect.right())); + m_bottom->setText(lat2string(rect.top())); +} + +void DownloadWidget::startDownload() +{ + m_dlProgress->setValue(0); + for (int level = m_startLevel; level <= m_levelSpinBox->value(); ++level) { + int max = pow(2, level) - 1; + int minX = qBound(0, lon2tilex(m_dlRect.left(), level), max); + int minY = qBound(0, lat2tiley(m_dlRect.bottom(), level), max); + int maxX = qBound(0, lon2tilex(m_dlRect.right(), level), max); + int maxY = qBound(0, lat2tiley(m_dlRect.top(), level), max); + for (int x = minX; x <= maxX; ++x) { + for (int y = minY; y <= maxY; ++y) { + m_dlList << QString("http://tile.openstreetmap.org/%1/%2/%3.png").arg(level).arg(x).arg(y); + } + } + } + if (!m_dlList.isEmpty()) { + m_dlProgress->setRange(0, m_dlList.count()); + QUrl url(m_dlList.takeFirst()); + m_manager->get(QNetworkRequest(url)); + } +} + +void DownloadWidget::replyFinished(QNetworkReply *reply) +{ + if (reply->error() == QNetworkReply::NoError) { + QString path = reply->url().path(); + int level = path.section('/', 1, 1).toInt(); + int x = path.section('/', 2, 2).toInt(); + + QDir base(QDir::homePath()+"/Maps/OSM"); + base.mkpath(QString("%1/%2").arg(level).arg(x)); + + QByteArray data = reply->readAll(); + if (!data.isEmpty()) { + QFile file(QDir::homePath()+"/Maps/OSM"+path); + if (file.open(QFile::WriteOnly)) { + file.write(data); + } + } + if (!m_dlList.isEmpty()) { + QUrl url(m_dlList.takeFirst()); + m_manager->get(QNetworkRequest(url)); + } + int n = m_dlProgress->value(); + m_dlProgress->setValue(n+1); + } + reply->deleteLater(); +} + +QString DownloadWidget::lon2string(qreal lon) +{ + QString result; + + if (lon < 0) { + result = "W "; + lon *= -1; + } else { + result = "E "; + } + result.append(QString::number(lon)); + + return result; +} + +QString DownloadWidget::lat2string(qreal lat) +{ + QString result; + + if (lat < 0) { + result = "S "; + lat *= -1; + } else { + result = "N "; + } + result.append(QString::number(lat)); + + return result; +} + +int DownloadWidget::lon2tilex(qreal lon, int z) +{ + return (int)(floor((lon + 180.0) / 360.0 * pow(2.0, z))); +} + +int DownloadWidget::lat2tiley(qreal lat, int z) +{ + return (int)(floor((1.0 - log(tan(lat * M_PI/180.0) + 1.0 / cos(lat * M_PI/180.0)) / M_PI) / 2.0 * pow(2.0, z))); +} + diff --git a/downloadwidget.h b/downloadwidget.h new file mode 100644 index 0000000..31c40f9 --- /dev/null +++ b/downloadwidget.h @@ -0,0 +1,62 @@ +/* + * Copyright 2010 Niels Kummerfeldt + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301 USA + */ + +#ifndef DOWNLOADWIDGET_H +#define DOWNLOADWIDGET_H + +#include +#include +#include +#include +#include + +class DownloadWidget : public QWidget +{ + Q_OBJECT +public: + DownloadWidget(QWidget *parent = 0); + ~DownloadWidget(); + + void setStartLevel(int level); + void setDownloadRect(const QRectF &rect); + +signals: + void back(); + +private slots: + void startDownload(); + void replyFinished(QNetworkReply *reply); + +private: + QString lon2string(qreal lon); + QString lat2string(qreal lat); + int lon2tilex(qreal lon, int z); + int lat2tiley(qreal lat, int z); + + QNetworkAccessManager *m_manager; + int m_startLevel; + QRectF m_dlRect; + QStringList m_dlList; + QLabel *m_up, *m_left, *m_right, *m_bottom; + QSpinBox *m_levelSpinBox; + QProgressBar *m_dlProgress; + +}; + +#endif // DOWNLOADWIDGET_H diff --git a/main.cpp b/main.cpp index 17593bd..156a456 100644 --- a/main.cpp +++ b/main.cpp @@ -17,9 +17,10 @@ * Boston, MA 02110-1301 USA */ -#include #include "mainwidget.h" +#include + int main(int argc, char *argv[]) { QApplication a(argc, argv); diff --git a/mainwidget.cpp b/mainwidget.cpp index 14949eb..fc10af1 100644 --- a/mainwidget.cpp +++ b/mainwidget.cpp @@ -19,6 +19,7 @@ #include "mainwidget.h" +#include "downloadwidget.h" #include "mapwidget.h" #include "markerlist.h" @@ -28,21 +29,27 @@ MainWidget::MainWidget(QWidget *parent) : QWidget(parent), m_stack(new QStackedWidget(this)), m_map(new MapWidget(this)), - m_markerList(new MarkerList(this)) + m_markerList(new MarkerList(this)), + m_dlWidget(new DownloadWidget(this)) { QHBoxLayout *layout = new QHBoxLayout(this); layout->setContentsMargins(0, 0, 0, 0); layout->addWidget(m_stack); - connect(m_map, SIGNAL(switchView()), this, SLOT(showList())); + connect(m_map, SIGNAL(showMarkerList()), this, SLOT(showList())); connect(m_map, SIGNAL(markerAdded(QString)), this, SLOT(markerAdded(QString))); + connect(m_map, SIGNAL(downloadArea(int, QRectF)), this, SLOT(downloadArea(int, QRectF))); m_stack->insertWidget(0, m_map); + connect(m_markerList, SIGNAL(back()), this, SLOT(showMap())); connect(m_markerList, SIGNAL(centerOnMarker(int)), this, SLOT(centerOnMarker(int))); connect(m_markerList, SIGNAL(removeMarker(int)), this, SLOT(removeMarker(int))); connect(m_markerList, SIGNAL(markerRenamed(int, QString)), this, SLOT(markerRenamed(int, QString))); m_stack->insertWidget(1, m_markerList); + connect(m_dlWidget, SIGNAL(back()), this, SLOT(showMap())); + m_stack->insertWidget(2, m_dlWidget); + resize(320, 240); } @@ -81,3 +88,10 @@ void MainWidget::markerRenamed(int index, const QString &name) m_map->renameMarker(index, name); } +void MainWidget::downloadArea(int level, const QRectF &rect) +{ + m_dlWidget->setStartLevel(level); + m_dlWidget->setDownloadRect(rect); + m_stack->setCurrentIndex(2); +} + diff --git a/mainwidget.h b/mainwidget.h index 7b42964..32067ba 100644 --- a/mainwidget.h +++ b/mainwidget.h @@ -24,13 +24,13 @@ #include #include +class DownloadWidget; class MapWidget; class MarkerList; class MainWidget : public QWidget { Q_OBJECT - public: MainWidget(QWidget *parent = 0); ~MainWidget(); @@ -42,11 +42,13 @@ private slots: void centerOnMarker(int row); void removeMarker(int row); void markerRenamed(int index, const QString &name); + void downloadArea(int level, const QRectF &rect); private: QStackedWidget *m_stack; MapWidget *m_map; MarkerList *m_markerList; + DownloadWidget *m_dlWidget; }; diff --git a/mapwidget.cpp b/mapwidget.cpp index c22ef88..48a5e2a 100644 --- a/mapwidget.cpp +++ b/mapwidget.cpp @@ -239,7 +239,7 @@ void MapWidget::keyPressEvent(QKeyEvent *event) switch (event->key()) { case Qt::Key_Tab: { - emit switchView(); + emit showMarkerList(); break; } case Qt::Key_M: @@ -303,6 +303,11 @@ void MapWidget::keyPressEvent(QKeyEvent *event) reloadPixmaps(); break; } + case Qt::Key_D: + { + emit downloadArea(m_level, geoRect()); + break; + } case Qt::Key_U: { m_infos = !m_infos; @@ -731,7 +736,22 @@ void MapWidget::centerOnGeoPos(qreal lon, qreal lat) updatePos(); } -QPointF MapWidget::geoPos() +QRectF MapWidget::geoRect() const +{ + qreal partX = (-m_pos.x()) / 256.0; + qreal partY = (height() - m_pos.y()) / 256.0; + qreal minLon = tilex2lon(m_indexX + partX, m_level); + qreal minLat = tiley2lat(m_indexY + partY, m_level); + + partX = (width() - m_pos.x()) / 256.0; + partY = (-m_pos.y()) / 256.0; + qreal maxLon = tilex2lon(m_indexX + partX, m_level); + qreal maxLat = tiley2lat(m_indexY + partY, m_level); + + return QRectF(QPointF(minLon, minLat), QPointF(maxLon, maxLat)); +} + +QPointF MapWidget::geoPos() const { qreal w = width() / 2.0; qreal h = height() / 2.0; @@ -743,7 +763,7 @@ QPointF MapWidget::geoPos() return QPointF(lon, lat); } -QPoint MapWidget::geo2screen(qreal lon, qreal lat) +QPoint MapWidget::geo2screen(qreal lon, qreal lat) const { qreal tx = lon2tilex(lon, m_level); qreal ty = lat2tiley(lat, m_level); @@ -754,22 +774,22 @@ QPoint MapWidget::geo2screen(qreal lon, qreal lat) return QPoint(x, y); } -qreal MapWidget::lon2tilex(qreal lon, int z) +qreal MapWidget::lon2tilex(qreal lon, int z) const { return (lon + 180.0) / 360.0 * pow(2.0, z); } -qreal MapWidget::lat2tiley(qreal lat, int z) +qreal MapWidget::lat2tiley(qreal lat, int z) const { return (1.0 - log(tan(lat * M_PI/180.0) + 1.0 / cos(lat * M_PI/180.0)) / M_PI) / 2.0 * pow(2.0, z); } -qreal MapWidget::tilex2lon(qreal x, int z) +qreal MapWidget::tilex2lon(qreal x, int z) const { return x / pow(2.0, z) * 360.0 - 180; } -qreal MapWidget::tiley2lat(qreal y, int z) +qreal MapWidget::tiley2lat(qreal y, int z) const { qreal n = M_PI - 2.0 * M_PI * y / pow(2.0, z); return 180.0 / M_PI * atan(0.5 * (exp(n) - exp(-n))); diff --git a/mapwidget.h b/mapwidget.h index 567253a..05f7b33 100644 --- a/mapwidget.h +++ b/mapwidget.h @@ -27,7 +27,6 @@ class MapWidget : public QWidget { Q_OBJECT - public: MapWidget(QWidget *parent = 0); ~MapWidget(); @@ -40,7 +39,8 @@ public slots: signals: void markerAdded(const QString &name); - void switchView(); + void showMarkerList(); + void downloadArea(int level, const QRectF &rect); protected: virtual void resizeEvent(QResizeEvent *event); @@ -65,12 +65,13 @@ private: void downloadTile(int x, int y, int level); void changeZoomLevel(int diff); void centerOnGeoPos(qreal lon, qreal lat); - QPointF geoPos(); - QPoint geo2screen(qreal lon, qreal lat); - qreal lon2tilex(qreal lon, int z); - qreal lat2tiley(qreal lat, int z); - qreal tilex2lon(qreal x, int z); - qreal tiley2lat(qreal y, int z); + QRectF geoRect() const; + QPointF geoPos() const; + QPoint geo2screen(qreal lon, qreal lat) const; + qreal lon2tilex(qreal lon, int z) const; + qreal lat2tiley(qreal lat, int z) const; + qreal tilex2lon(qreal x, int z) const; + qreal tiley2lat(qreal y, int z) const; bool m_usage, m_infos, m_zoomable; QString m_baseName; diff --git a/markerlist.h b/markerlist.h index dc9479e..83b0e28 100644 --- a/markerlist.h +++ b/markerlist.h @@ -26,7 +26,6 @@ class MarkerList : public QWidget { Q_OBJECT - public: MarkerList(QWidget *parent = 0); ~MarkerList(); @@ -51,4 +50,4 @@ private: }; -#endif // MAINWIDGET_H +#endif // MARKERLIST_H diff --git a/nanomap.pro b/nanomap.pro index b9b9549..9b2e553 100644 --- a/nanomap.pro +++ b/nanomap.pro @@ -7,9 +7,11 @@ SOURCES += main.cpp \ mainwidget.cpp \ mapwidget.cpp \ markerlist.cpp \ + downloadwidget.cpp \ gpsclient.cpp HEADERS += mainwidget.h \ mapwidget.h \ markerlist.h \ + downloadwidget.h \ gpsclient.h