From e0d5221957bf0d7857f924f1f2ae63d490de0a0a Mon Sep 17 00:00:00 2001 From: Casper van Donderen Date: Wed, 22 Jun 2011 13:54:56 +0200 Subject: Move all other demos in qtbase to examples. Change-Id: Iab0e7364d1f6b348d0e3033ea9304139f5bd6d0d Reviewed-on: http://codereview.qt.nokia.com/617 Reviewed-by: Qt Sanity Bot Reviewed-by: David Boddie --- examples/embedded/lightmaps/lightmaps.cpp | 287 ++++++++++++++++++++++++++++++ examples/embedded/lightmaps/lightmaps.h | 88 +++++++++ examples/embedded/lightmaps/lightmaps.pro | 21 +++ examples/embedded/lightmaps/main.cpp | 63 +++++++ examples/embedded/lightmaps/mapzoom.cpp | 147 +++++++++++++++ examples/embedded/lightmaps/mapzoom.h | 69 +++++++ examples/embedded/lightmaps/slippymap.cpp | 213 ++++++++++++++++++++++ examples/embedded/lightmaps/slippymap.h | 87 +++++++++ 8 files changed, 975 insertions(+) create mode 100644 examples/embedded/lightmaps/lightmaps.cpp create mode 100644 examples/embedded/lightmaps/lightmaps.h create mode 100644 examples/embedded/lightmaps/lightmaps.pro create mode 100644 examples/embedded/lightmaps/main.cpp create mode 100644 examples/embedded/lightmaps/mapzoom.cpp create mode 100644 examples/embedded/lightmaps/mapzoom.h create mode 100644 examples/embedded/lightmaps/slippymap.cpp create mode 100644 examples/embedded/lightmaps/slippymap.h (limited to 'examples/embedded/lightmaps') diff --git a/examples/embedded/lightmaps/lightmaps.cpp b/examples/embedded/lightmaps/lightmaps.cpp new file mode 100644 index 0000000000..d672530e19 --- /dev/null +++ b/examples/embedded/lightmaps/lightmaps.cpp @@ -0,0 +1,287 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include +#include +#include + +#include + +#include "lightmaps.h" +#include "slippymap.h" + +#ifndef M_PI +#define M_PI 3.14159265358979323846 +#endif + +// how long (milliseconds) the user need to hold (after a tap on the screen) +// before triggering the magnifying glass feature +// 701, a prime number, is the sum of 229, 233, 239 +// (all three are also prime numbers, consecutive!) +#define HOLD_TIME 701 + +// maximum size of the magnifier +// Hint: see above to find why I picked this one :) +#define MAX_MAGNIFIER 229 + +LightMaps::LightMaps(QWidget *parent) + : QWidget(parent), pressed(false), snapped(false), zoomed(false), + invert(false) +{ + m_normalMap = new SlippyMap(this); + m_largeMap = new SlippyMap(this); + connect(m_normalMap, SIGNAL(updated(QRect)), SLOT(updateMap(QRect))); + connect(m_largeMap, SIGNAL(updated(QRect)), SLOT(update())); +} + +void LightMaps::setCenter(qreal lat, qreal lng) +{ + m_normalMap->latitude = lat; + m_normalMap->longitude = lng; + m_normalMap->invalidate(); + m_largeMap->latitude = lat; + m_largeMap->longitude = lng; + m_largeMap->invalidate(); +} + +void LightMaps::toggleNightMode() +{ + invert = !invert; + update(); +} + +void LightMaps::updateMap(const QRect &r) +{ + update(r); +} + +void LightMaps::activateZoom() +{ + zoomed = true; + tapTimer.stop(); + m_largeMap->zoom = m_normalMap->zoom + 1; + m_largeMap->width = m_normalMap->width * 2; + m_largeMap->height = m_normalMap->height * 2; + m_largeMap->latitude = m_normalMap->latitude; + m_largeMap->longitude = m_normalMap->longitude; + m_largeMap->invalidate(); + update(); +} + +void LightMaps::resizeEvent(QResizeEvent *) +{ + m_normalMap->width = width(); + m_normalMap->height = height(); + m_normalMap->invalidate(); + m_largeMap->width = m_normalMap->width * 2; + m_largeMap->height = m_normalMap->height * 2; + m_largeMap->invalidate(); +} + +void LightMaps::paintEvent(QPaintEvent *event) +{ + QPainter p; + p.begin(this); + m_normalMap->render(&p, event->rect()); + p.setPen(Qt::black); +#if defined(Q_OS_SYMBIAN) + QFont font = p.font(); + font.setPixelSize(13); + p.setFont(font); +#endif + p.drawText(rect(), Qt::AlignBottom | Qt::TextWordWrap, + "Map data CCBYSA 2009 OpenStreetMap.org contributors"); + p.end(); + + if (zoomed) { + int dim = qMin(width(), height()); + int magnifierSize = qMin(MAX_MAGNIFIER, dim * 2 / 3); + int radius = magnifierSize / 2; + int ring = radius - 15; + QSize box = QSize(magnifierSize, magnifierSize); + + // reupdate our mask + if (maskPixmap.size() != box) { + maskPixmap = QPixmap(box); + maskPixmap.fill(Qt::transparent); + + QRadialGradient g; + g.setCenter(radius, radius); + g.setFocalPoint(radius, radius); + g.setRadius(radius); + g.setColorAt(1.0, QColor(255, 255, 255, 0)); + g.setColorAt(0.5, QColor(128, 128, 128, 255)); + + QPainter mask(&maskPixmap); + mask.setRenderHint(QPainter::Antialiasing); + mask.setCompositionMode(QPainter::CompositionMode_Source); + mask.setBrush(g); + mask.setPen(Qt::NoPen); + mask.drawRect(maskPixmap.rect()); + mask.setBrush(QColor(Qt::transparent)); + mask.drawEllipse(g.center(), ring, ring); + mask.end(); + } + + QPoint center = dragPos - QPoint(0, radius); + center = center + QPoint(0, radius / 2); + QPoint corner = center - QPoint(radius, radius); + + QPoint xy = center * 2 - QPoint(radius, radius); + + // only set the dimension to the magnified portion + if (zoomPixmap.size() != box) { + zoomPixmap = QPixmap(box); + zoomPixmap.fill(Qt::lightGray); + } + if (true) { + QPainter p(&zoomPixmap); + p.translate(-xy); + m_largeMap->render(&p, QRect(xy, box)); + p.end(); + } + + QPainterPath clipPath; + clipPath.addEllipse(center, ring, ring); + + QPainter p(this); + p.setRenderHint(QPainter::Antialiasing); + p.setClipPath(clipPath); + p.drawPixmap(corner, zoomPixmap); + p.setClipping(false); + p.drawPixmap(corner, maskPixmap); + p.setPen(Qt::gray); + p.drawPath(clipPath); + } + if (invert) { + QPainter p(this); + p.setCompositionMode(QPainter::CompositionMode_Difference); + p.fillRect(event->rect(), Qt::white); + p.end(); + } +} + +void LightMaps::timerEvent(QTimerEvent *) +{ + if (!zoomed) + activateZoom(); + update(); +} + +void LightMaps::mousePressEvent(QMouseEvent *event) +{ + if (event->buttons() != Qt::LeftButton) + return; + pressed = snapped = true; + pressPos = dragPos = event->pos(); + tapTimer.stop(); + tapTimer.start(HOLD_TIME, this); +} + +void LightMaps::mouseMoveEvent(QMouseEvent *event) +{ + if (!event->buttons()) + return; + if (!zoomed) { + if (!pressed || !snapped) { + QPoint delta = event->pos() - pressPos; + pressPos = event->pos(); + m_normalMap->pan(delta); + return; + } else { + const int threshold = 10; + QPoint delta = event->pos() - pressPos; + if (snapped) { + snapped &= delta.x() < threshold; + snapped &= delta.y() < threshold; + snapped &= delta.x() > -threshold; + snapped &= delta.y() > -threshold; + } + if (!snapped) + tapTimer.stop(); + } + } else { + dragPos = event->pos(); + update(); + } +} + +void LightMaps::mouseReleaseEvent(QMouseEvent *) +{ + zoomed = false; + update(); +} + +void LightMaps::keyPressEvent(QKeyEvent *event) +{ + if (!zoomed) { + if (event->key() == Qt::Key_Left) + m_normalMap->pan(QPoint(20, 0)); + if (event->key() == Qt::Key_Right) + m_normalMap->pan(QPoint(-20, 0)); + if (event->key() == Qt::Key_Up) + m_normalMap->pan(QPoint(0, 20)); + if (event->key() == Qt::Key_Down) + m_normalMap->pan(QPoint(0, -20)); + if (event->key() == Qt::Key_Z || event->key() == Qt::Key_Select) { + dragPos = QPoint(width() / 2, height() / 2); + activateZoom(); + } + } else { + if (event->key() == Qt::Key_Z || event->key() == Qt::Key_Select) { + zoomed = false; + update(); + } + QPoint delta(0, 0); + if (event->key() == Qt::Key_Left) + delta = QPoint(-15, 0); + if (event->key() == Qt::Key_Right) + delta = QPoint(15, 0); + if (event->key() == Qt::Key_Up) + delta = QPoint(0, -15); + if (event->key() == Qt::Key_Down) + delta = QPoint(0, 15); + if (delta != QPoint(0, 0)) { + dragPos += delta; + update(); + } + } +} diff --git a/examples/embedded/lightmaps/lightmaps.h b/examples/embedded/lightmaps/lightmaps.h new file mode 100644 index 0000000000..45b5c188a2 --- /dev/null +++ b/examples/embedded/lightmaps/lightmaps.h @@ -0,0 +1,88 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef LIGHTMAPS_H +#define LIGHTMAPS_H + +#include +#include + +class SlippyMap; + +class LightMaps: public QWidget +{ + Q_OBJECT + +public: + LightMaps(QWidget *parent = 0); + void setCenter(qreal lat, qreal lng); + +public slots: + void toggleNightMode(); + +protected: + void activateZoom(); + void resizeEvent(QResizeEvent *); + void paintEvent(QPaintEvent *event); + void timerEvent(QTimerEvent *); + void mousePressEvent(QMouseEvent *event); + void mouseMoveEvent(QMouseEvent *event); + void mouseReleaseEvent(QMouseEvent *); + void keyPressEvent(QKeyEvent *event); + +private slots: + void updateMap(const QRect &r); + +private: + SlippyMap *m_normalMap; + SlippyMap *m_largeMap; + bool pressed; + bool snapped; + QPoint pressPos; + QPoint dragPos; + QBasicTimer tapTimer; + bool zoomed; + QPixmap zoomPixmap; + QPixmap maskPixmap; + bool invert; +}; + +#endif \ No newline at end of file diff --git a/examples/embedded/lightmaps/lightmaps.pro b/examples/embedded/lightmaps/lightmaps.pro new file mode 100644 index 0000000000..2751c3a647 --- /dev/null +++ b/examples/embedded/lightmaps/lightmaps.pro @@ -0,0 +1,21 @@ +TEMPLATE = app +HEADERS = lightmaps.h \ + mapzoom.h \ + slippymap.h +SOURCES = lightmaps.cpp \ + main.cpp \ + mapzoom.cpp \ + slippymap.cpp +QT += network + +symbian { + TARGET.UID3 = 0xA000CF75 + CONFIG += qt_demo + TARGET.CAPABILITY = NetworkServices + TARGET.EPOCHEAPSIZE = 0x20000 0x2000000 +} + +target.path = $$[QT_INSTALL_DEMOS]/qtbase/embedded/lightmaps +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS *.pro +sources.path = $$[QT_INSTALL_DEMOS]/qtbase/embedded/lightmaps +INSTALLS += target sources diff --git a/examples/embedded/lightmaps/main.cpp b/examples/embedded/lightmaps/main.cpp new file mode 100644 index 0000000000..85f74e638e --- /dev/null +++ b/examples/embedded/lightmaps/main.cpp @@ -0,0 +1,63 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include +#include "mapzoom.h" + +int main(int argc, char **argv) +{ +#if defined(Q_WS_X11) + QApplication::setGraphicsSystem("raster"); +#endif + + QApplication app(argc, argv); + app.setApplicationName("LightMaps"); + + MapZoom w; +#if defined(Q_OS_SYMBIAN) || defined(Q_OS_WINCE_WM) + w.showMaximized(); +#else + w.resize(600, 450); + w.show(); +#endif + + return app.exec(); +} diff --git a/examples/embedded/lightmaps/mapzoom.cpp b/examples/embedded/lightmaps/mapzoom.cpp new file mode 100644 index 0000000000..d01457e3f4 --- /dev/null +++ b/examples/embedded/lightmaps/mapzoom.cpp @@ -0,0 +1,147 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include +#include +#include "lightmaps.h" +#include "mapzoom.h" + +MapZoom::MapZoom() + : QMainWindow(0) +{ + map = new LightMaps(this); + setCentralWidget(map); + map->setFocus(); + + QAction *osloAction = new QAction(tr("&Oslo"), this); + QAction *berlinAction = new QAction(tr("&Berlin"), this); + QAction *jakartaAction = new QAction(tr("&Jakarta"), this); + QAction *nightModeAction = new QAction(tr("Night Mode"), this); + nightModeAction->setCheckable(true); + nightModeAction->setChecked(false); + QAction *osmAction = new QAction(tr("About OpenStreetMap"), this); + connect(osloAction, SIGNAL(triggered()), SLOT(chooseOslo())); + connect(berlinAction, SIGNAL(triggered()), SLOT(chooseBerlin())); + connect(jakartaAction, SIGNAL(triggered()), SLOT(chooseJakarta())); + connect(nightModeAction, SIGNAL(triggered()), map, SLOT(toggleNightMode())); + connect(osmAction, SIGNAL(triggered()), SLOT(aboutOsm())); + +#if defined(Q_OS_SYMBIAN) || defined(Q_OS_WINCE_WM) + menuBar()->addAction(osloAction); + menuBar()->addAction(berlinAction); + menuBar()->addAction(jakartaAction); + menuBar()->addAction(nightModeAction); + menuBar()->addAction(osmAction); +#else + QMenu *menu = menuBar()->addMenu(tr("&Options")); + menu->addAction(osloAction); + menu->addAction(berlinAction); + menu->addAction(jakartaAction); + menu->addSeparator(); + menu->addAction(nightModeAction); + menu->addAction(osmAction); +#endif + + QNetworkConfigurationManager manager; + if (manager.capabilities() & QNetworkConfigurationManager::NetworkSessionRequired) { + // Get saved network configuration + QSettings settings(QSettings::UserScope, QLatin1String("Trolltech")); + settings.beginGroup(QLatin1String("QtNetwork")); + const QString id = + settings.value(QLatin1String("DefaultNetworkConfiguration")).toString(); + settings.endGroup(); + + // If the saved network configuration is not currently discovered use the system + // default + QNetworkConfiguration config = manager.configurationFromIdentifier(id); + if ((config.state() & QNetworkConfiguration::Discovered) != + QNetworkConfiguration::Discovered) { + config = manager.defaultConfiguration(); + } + + networkSession = new QNetworkSession(config, this); + connect(networkSession, SIGNAL(opened()), this, SLOT(sessionOpened())); + + networkSession->open(); + } else { + networkSession = 0; + } + + setWindowTitle(tr("Light Maps")); +} + +void MapZoom::sessionOpened() +{ + // Save the used configuration + QNetworkConfiguration config = networkSession->configuration(); + QString id; + if (config.type() == QNetworkConfiguration::UserChoice) { + id = networkSession->sessionProperty( + QLatin1String("UserChoiceConfiguration")).toString(); + } else { + id = config.identifier(); + } + + QSettings settings(QSettings::UserScope, QLatin1String("Trolltech")); + settings.beginGroup(QLatin1String("QtNetwork")); + settings.setValue(QLatin1String("DefaultNetworkConfiguration"), id); + settings.endGroup(); +} + +void MapZoom::chooseOslo() +{ + map->setCenter(59.9138204, 10.7387413); +} + +void MapZoom::chooseBerlin() +{ + map->setCenter(52.52958999943302, 13.383053541183472); +} + +void MapZoom::chooseJakarta() +{ + map->setCenter(-6.211544, 106.845172); +} + +void MapZoom::aboutOsm() +{ + QDesktopServices::openUrl(QUrl("http://www.openstreetmap.org")); +} diff --git a/examples/embedded/lightmaps/mapzoom.h b/examples/embedded/lightmaps/mapzoom.h new file mode 100644 index 0000000000..ac70a23316 --- /dev/null +++ b/examples/embedded/lightmaps/mapzoom.h @@ -0,0 +1,69 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef MAPZOOM_H +#define MAPZOOM_H + +#include + +class QNetworkSession; +class LightMaps; + +class MapZoom : public QMainWindow +{ + Q_OBJECT + +public: + MapZoom(); + +private slots: + void sessionOpened(); + void chooseOslo(); + void chooseBerlin(); + void chooseJakarta(); + void aboutOsm(); + +private: + LightMaps *map; + QNetworkSession *networkSession; +}; + +#endif \ No newline at end of file diff --git a/examples/embedded/lightmaps/slippymap.cpp b/examples/embedded/lightmaps/slippymap.cpp new file mode 100644 index 0000000000..8c71f2946a --- /dev/null +++ b/examples/embedded/lightmaps/slippymap.cpp @@ -0,0 +1,213 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include + +#include +#include +#include "slippymap.h" + +#ifndef M_PI +#define M_PI 3.14159265358979323846 +#endif + +uint qHash(const QPoint& p) +{ + return p.x() * 17 ^ p.y(); +} + +// tile size in pixels +const int tdim = 256; + +QPointF tileForCoordinate(qreal lat, qreal lng, int zoom) +{ + qreal zn = static_cast(1 << zoom); + qreal tx = (lng + 180.0) / 360.0; + qreal ty = (1.0 - log(tan(lat * M_PI / 180.0) + + 1.0 / cos(lat * M_PI / 180.0)) / M_PI) / 2.0; + return QPointF(tx * zn, ty * zn); +} + +qreal longitudeFromTile(qreal tx, int zoom) +{ + qreal zn = static_cast(1 << zoom); + qreal lat = tx / zn * 360.0 - 180.0; + return lat; +} + +qreal latitudeFromTile(qreal ty, int zoom) +{ + qreal zn = static_cast(1 << zoom); + qreal n = M_PI - 2 * M_PI * ty / zn; + qreal lng = 180.0 / M_PI * atan(0.5 * (exp(n) - exp(-n))); + return lng; +} + + +SlippyMap::SlippyMap(QObject *parent) + : QObject(parent), width(400), height(300), zoom(15), + latitude(59.9138204), longitude(10.7387413) +{ + m_emptyTile = QPixmap(tdim, tdim); + m_emptyTile.fill(Qt::lightGray); + + QNetworkDiskCache *cache = new QNetworkDiskCache; + cache->setCacheDirectory(QDesktopServices::storageLocation + (QDesktopServices::CacheLocation)); + m_manager.setCache(cache); + connect(&m_manager, SIGNAL(finished(QNetworkReply*)), + this, SLOT(handleNetworkData(QNetworkReply*))); +} + +void SlippyMap::invalidate() +{ + if (width <= 0 || height <= 0) + return; + + QPointF ct = tileForCoordinate(latitude, longitude, zoom); + qreal tx = ct.x(); + qreal ty = ct.y(); + + // top-left corner of the center tile + int xp = width / 2 - (tx - floor(tx)) * tdim; + int yp = height / 2 - (ty - floor(ty)) * tdim; + + // first tile vertical and horizontal + int xa = (xp + tdim - 1) / tdim; + int ya = (yp + tdim - 1) / tdim; + int xs = static_cast(tx) - xa; + int ys = static_cast(ty) - ya; + + // offset for top-left tile + m_offset = QPoint(xp - xa * tdim, yp - ya * tdim); + + // last tile vertical and horizontal + int xe = static_cast(tx) + (width - xp - 1) / tdim; + int ye = static_cast(ty) + (height - yp - 1) / tdim; + + // build a rect + m_tilesRect = QRect(xs, ys, xe - xs + 1, ye - ys + 1); + + if (m_url.isEmpty()) + download(); + + emit updated(QRect(0, 0, width, height)); +} + +void SlippyMap::render(QPainter *p, const QRect &rect) +{ + for (int x = 0; x <= m_tilesRect.width(); ++x) + for (int y = 0; y <= m_tilesRect.height(); ++y) { + QPoint tp(x + m_tilesRect.left(), y + m_tilesRect.top()); + QRect box = tileRect(tp); + if (rect.intersects(box)) { + if (m_tilePixmaps.contains(tp)) + p->drawPixmap(box, m_tilePixmaps.value(tp)); + else + p->drawPixmap(box, m_emptyTile); + } + } +} + +void SlippyMap::pan(const QPoint &delta) +{ + QPointF dx = QPointF(delta) / qreal(tdim); + QPointF center = tileForCoordinate(latitude, longitude, zoom) - dx; + latitude = latitudeFromTile(center.y(), zoom); + longitude = longitudeFromTile(center.x(), zoom); + invalidate(); +} + +void SlippyMap::handleNetworkData(QNetworkReply *reply) +{ + QImage img; + QPoint tp = reply->request().attribute(QNetworkRequest::User).toPoint(); + QUrl url = reply->url(); + if (!reply->error()) + if (!img.load(reply, 0)) + img = QImage(); + reply->deleteLater(); + m_tilePixmaps[tp] = QPixmap::fromImage(img); + if (img.isNull()) + m_tilePixmaps[tp] = m_emptyTile; + emit updated(tileRect(tp)); + + // purge unused spaces + QRect bound = m_tilesRect.adjusted(-2, -2, 2, 2); + foreach(QPoint tp, m_tilePixmaps.keys()) + if (!bound.contains(tp)) + m_tilePixmaps.remove(tp); + + download(); +} + +void SlippyMap::download() +{ + QPoint grab(0, 0); + for (int x = 0; x <= m_tilesRect.width(); ++x) + for (int y = 0; y <= m_tilesRect.height(); ++y) { + QPoint tp = m_tilesRect.topLeft() + QPoint(x, y); + if (!m_tilePixmaps.contains(tp)) { + grab = tp; + break; + } + } + if (grab == QPoint(0, 0)) { + m_url = QUrl(); + return; + } + + QString path = "http://tile.openstreetmap.org/%1/%2/%3.png"; + m_url = QUrl(path.arg(zoom).arg(grab.x()).arg(grab.y())); + QNetworkRequest request; + request.setUrl(m_url); + request.setRawHeader("User-Agent", "Nokia (Qt) Graphics Dojo 1.0"); + request.setAttribute(QNetworkRequest::User, QVariant(grab)); + m_manager.get(request); +} + +QRect SlippyMap::tileRect(const QPoint &tp) +{ + QPoint t = tp - m_tilesRect.topLeft(); + int x = t.x() * tdim + m_offset.x(); + int y = t.y() * tdim + m_offset.y(); + return QRect(x, y, tdim, tdim); +} diff --git a/examples/embedded/lightmaps/slippymap.h b/examples/embedded/lightmaps/slippymap.h new file mode 100644 index 0000000000..64ba5c3e59 --- /dev/null +++ b/examples/embedded/lightmaps/slippymap.h @@ -0,0 +1,87 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef SLIPPYMAP_H +#define SLIPPYMAP_H + +#include +#include +#include + +class QNetworkReply; +class QPainter; + +class SlippyMap: public QObject +{ + Q_OBJECT + +public: + SlippyMap(QObject *parent = 0); + void invalidate(); + void render(QPainter *p, const QRect &rect); + void pan(const QPoint &delta); + + int width; + int height; + int zoom; + qreal latitude; + qreal longitude; + +signals: + void updated(const QRect &rect); + +private slots: + void handleNetworkData(QNetworkReply *reply); + void download(); + +protected: + QRect tileRect(const QPoint &tp); + +private: + QPoint m_offset; + QRect m_tilesRect; + QPixmap m_emptyTile; + QHash m_tilePixmaps; + QNetworkAccessManager m_manager; + QUrl m_url; +}; + +#endif \ No newline at end of file -- cgit v1.2.3 From ebfbac6145e75b5f6c9d2f6cf2befce41c7fadd2 Mon Sep 17 00:00:00 2001 From: Casper van Donderen Date: Thu, 23 Jun 2011 16:59:09 +0200 Subject: Add the embedded demos-examples to the build. Change-Id: Ib0a1e650913416e3ec05f1a86c139844a814f8bf Reviewed-on: http://codereview.qt.nokia.com/686 Reviewed-by: Qt Sanity Bot Reviewed-by: David Boddie --- examples/embedded/lightmaps/lightmaps.pro | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'examples/embedded/lightmaps') diff --git a/examples/embedded/lightmaps/lightmaps.pro b/examples/embedded/lightmaps/lightmaps.pro index 2751c3a647..7622f88511 100644 --- a/examples/embedded/lightmaps/lightmaps.pro +++ b/examples/embedded/lightmaps/lightmaps.pro @@ -10,12 +10,12 @@ QT += network symbian { TARGET.UID3 = 0xA000CF75 - CONFIG += qt_demo + CONFIG += qt_example TARGET.CAPABILITY = NetworkServices TARGET.EPOCHEAPSIZE = 0x20000 0x2000000 } -target.path = $$[QT_INSTALL_DEMOS]/qtbase/embedded/lightmaps +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/embedded/lightmaps sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS *.pro -sources.path = $$[QT_INSTALL_DEMOS]/qtbase/embedded/lightmaps +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/embedded/lightmaps INSTALLS += target sources -- cgit v1.2.3