File indexing completed on 2025-01-05 03:59:18

 // SPDX-License-Identifier: LGPL-2.1-or-later
 //
 // SPDX-FileCopyrightText: 2006-2007 Torsten Rahn <tackat@kde.org>
 // SPDX-FileCopyrightText: 2007-2008 Inge Wallin <ingwa@kde.org>
 // SPDX-FileCopyrightText: 2011-2012 Bernhard Beschow <bbeschow@cs.tu-berlin.de>
 //
 
 #include "PlacemarkLayer.h"
 
 #include <QPoint>
 
 #include "AbstractProjection.h"
 #include "GeoDataStyle.h"
 #include "GeoPainter.h"
 #include "GeoDataLatLonAltBox.h"
 #include "ViewportParams.h"
 #include "VisiblePlacemark.h"
 #include "RenderState.h"
 #include "OsmPlacemarkData.h"
 
 #include "digikam_debug.h"
 
 #define BATCH_RENDERING
 
 using namespace Marble;
 
 PlacemarkLayer::PlacemarkLayer(QAbstractItemModel *placemarkModel,
                                 QItemSelectionModel *selectionModel,
                                 MarbleClock *clock, const StyleBuilder *styleBuilder,
                                 QObject *parent ) :
     QObject( parent ),
     m_layout( placemarkModel, selectionModel, clock, styleBuilder ),
     m_debugModeEnabled(false),
     m_levelTagDebugModeEnabled(false),
     m_tileLevel(0),
     m_debugLevelTag(0)
 {
     connect( &m_layout, SIGNAL(repaintNeeded()), SIGNAL(repaintNeeded()) );
 }
 
 PlacemarkLayer::~PlacemarkLayer()
 {
 }
 
 QStringList PlacemarkLayer::renderPosition() const
 {
     return QStringList(QStringLiteral("PLACEMARKS"));
 }
 
 qreal PlacemarkLayer::zValue() const
 {
     return 2.0;
 }
 
 bool PlacemarkLayer::render( GeoPainter *geoPainter, ViewportParams *viewport,
                                const QString &renderPos, GeoSceneLayer *layer )
 {
     Q_UNUSED( renderPos )
     Q_UNUSED( layer )
 
     QVector<VisiblePlacemark*> visiblePlacemarks = m_layout.generateLayout( viewport, m_tileLevel );
     // draw placemarks less important first
     QVector<VisiblePlacemark*>::const_iterator visit = visiblePlacemarks.constEnd();
     QVector<VisiblePlacemark*>::const_iterator itEnd = visiblePlacemarks.constBegin();
 
     QPainter *const painter = geoPainter;
 
     bool const repeatableX = viewport->currentProjection()->repeatableX();
     int const radius4 = 4 * viewport->radius();
 
 #ifdef BATCH_RENDERING
     QHash <QString, Fragment> hash;
 #endif
 
     while ( visit != itEnd ) {
         --visit;
 
         VisiblePlacemark *const mark = *visit;
         if (m_levelTagDebugModeEnabled) {
             if (mark->placemark()->hasOsmData()) {
                 QHash<QString, QString>::const_iterator tagIter = mark->placemark()->osmData().findTag(QStringLiteral("level"));
                 if (tagIter != mark->placemark()->osmData().tagsEnd()) {
                     const int val = tagIter.value().toInt();
                     if (val != m_debugLevelTag) {
                         continue;
                     }
                 }
             }
         }
 
         // Intentionally converting positions from floating point to pixel aligned screen grid below
         QRect labelRect( mark->labelRect().toRect() );
         QPoint symbolPos( mark->symbolPosition().toPoint());
 
         // when the map is such zoomed out that a given place
         // appears many times, we draw one placemark at each
         if (repeatableX) {
             const int symbolX = symbolPos.x();
             const int textX =   labelRect.x();
 
             for (int i = symbolX % radius4, width = viewport->width(); i <= width; i += radius4) {
                 labelRect.moveLeft(i - symbolX + textX);
                 symbolPos.setX(i);
 
                 if (!mark->symbolPixmap().isNull()) {
 #ifdef BATCH_RENDERING
                     QRect symbolRect = mark->symbolPixmap().rect();
                     QPainter::PixmapFragment pixmapFragment = QPainter::PixmapFragment::create(QPointF(symbolPos+symbolRect.center()),QRectF(symbolRect));
 
                     auto iter = hash.find(mark->symbolId());
                     if (iter == hash.end()) {
                         Fragment fragment;
                         fragment.pixmap = mark->symbolPixmap();
                         fragment.fragments << pixmapFragment;
                         hash.insert(mark->symbolId(), fragment);
                     } else {
                         auto & fragment = iter.value();
                         fragment.fragments << pixmapFragment;
                     }
 #else
                     painter->drawPixmap( symbolPos, mark->symbolPixmap() );
 #endif
                 }
                 if (!mark->labelPixmap().isNull()) {
                     painter->drawPixmap( labelRect, mark->labelPixmap() );
                 }
             }
         } else { // simple case, one draw per placemark
 
             if (!mark->symbolPixmap().isNull()) {
 #ifdef BATCH_RENDERING
                 QRect symbolRect = mark->symbolPixmap().rect();
                 QPainter::PixmapFragment pixmapFragment = QPainter::PixmapFragment::create(QPointF(symbolPos+symbolRect.center()),QRectF(symbolRect));
 
                 auto iter = hash.find(mark->symbolId());
                 if (iter == hash.end()) {
                     Fragment fragment;
                     fragment.pixmap = mark->symbolPixmap();
                     fragment.fragments << pixmapFragment;
                     hash.insert(mark->symbolId(), fragment);
                 }
                 else {
                     auto & fragment = iter.value();
                     fragment.fragments << pixmapFragment;
                 }
 #else
                 painter->drawPixmap( symbolPos, mark->symbolPixmap() );
 #endif
             }
             if (!mark->labelPixmap().isNull()) {
                 painter->drawPixmap( labelRect, mark->labelPixmap() );
             }
         }
     }
 
 #ifdef BATCH_RENDERING
     for (auto iter = hash.begin(), end = hash.end(); iter != end; ++iter) {
         auto const & fragment = iter.value();
         if (m_debugModeEnabled) {
             QPixmap debugPixmap(fragment.pixmap.size());
             QColor backgroundColor;
             QString idStr = iter.key().section(QLatin1Char('/'), -1);
             if (idStr.length() > 2) {
               idStr.remove(QString::fromUtf8("shop_"));
               backgroundColor = QColor(
                           (10 * (int)(idStr[0].toLatin1()))%255,
                           (10 * (int)(idStr[1].toLatin1()))%255,
                           (10 * (int)(idStr[2].toLatin1()))%255 );
             }
             else {
               backgroundColor = QColor((quint64)(&iter.key()));
             }
             debugPixmap.fill(backgroundColor);
             QPainter pixpainter;
             pixpainter.begin(&debugPixmap);
             pixpainter.drawPixmap(0, 0, fragment.pixmap);
             pixpainter.end();
             iter.value().pixmap = debugPixmap;
         }
         painter->drawPixmapFragments(fragment.fragments.data(), fragment.fragments.size(), fragment.pixmap);
     }
 #endif
 
     if (m_debugModeEnabled) {
         renderDebug(geoPainter, viewport, visiblePlacemarks);
     }
 
     return true;
 }
 
 RenderState PlacemarkLayer::renderState() const
 {
     return RenderState(QStringLiteral("Placemarks"));
 }
 
 QString PlacemarkLayer::runtimeTrace() const
 {
     return m_layout.runtimeTrace();
 }
 
 QVector<const GeoDataFeature *> PlacemarkLayer::whichPlacemarkAt( const QPoint &pos )
 {
     return m_layout.whichPlacemarkAt( pos );
 }
 
 bool PlacemarkLayer::hasPlacemarkAt(const QPoint &pos)
 {
     return m_layout.hasPlacemarkAt(pos);
 }
 
 bool PlacemarkLayer::isDebugModeEnabled() const
 {
     return m_debugModeEnabled;
 }
 
 void PlacemarkLayer::setDebugModeEnabled(bool enabled)
 {
     m_debugModeEnabled = enabled;
 }
 
 void PlacemarkLayer::setShowPlaces( bool show )
 {
     m_layout.setShowPlaces( show );
 }
 
 void PlacemarkLayer::setShowCities( bool show )
 {
     m_layout.setShowCities( show );
 }
 
 void PlacemarkLayer::setShowTerrain( bool show )
 {
     m_layout.setShowTerrain( show );
 }
 
 void PlacemarkLayer::setShowOtherPlaces( bool show )
 {
     m_layout.setShowOtherPlaces( show );
 }
 
 void PlacemarkLayer::setShowLandingSites( bool show )
 {
     m_layout.setShowLandingSites( show );
 }
 
 void PlacemarkLayer::setShowCraters( bool show )
 {
     m_layout.setShowCraters( show );
 }
 
 void PlacemarkLayer::setShowMaria( bool show )
 {
     m_layout.setShowMaria( show );
 }
 
 void PlacemarkLayer::requestStyleReset()
 {
     m_layout.requestStyleReset();
 }
 
 void PlacemarkLayer::setTileLevel(int tileLevel)
 {
     m_tileLevel = tileLevel;
 }
 
 void PlacemarkLayer::renderDebug(GeoPainter *painter, ViewportParams *viewport, const QVector<VisiblePlacemark *> &placemarks) const
 {
     painter->save();
     painter->setFont(QFont(QStringLiteral("Sans Serif"), 7));
     painter->setBrush(QBrush(Qt::NoBrush));
     auto const latLonAltBox = viewport->viewLatLonAltBox();
 
     using Placemarks = QSet<VisiblePlacemark *>;
     const auto visiblePlacemarks = m_layout.visiblePlacemarks();
     Placemarks const hidden = Placemarks(visiblePlacemarks.constBegin(), visiblePlacemarks.constEnd())
         .subtract(Placemarks(placemarks.constBegin(), placemarks.constEnd()));
 
     for (auto placemark: hidden) {
         bool const inside = latLonAltBox.contains(placemark->coordinates());
         painter->setPen(QPen(QColor(inside ? Qt::red : Qt::darkYellow)));
         painter->drawRect(placemark->boundingBox());
     }
 
     painter->setPen(QPen(QColor(Qt::blue)));
     for (auto placemark: placemarks) {
         painter->drawRect(placemark->boundingBox());
     }
 
     painter->setPen(QPen(QColor(Qt::green)));
     for (auto placemark: placemarks) {
         painter->drawRect(placemark->labelRect());
         painter->drawRect(placemark->symbolRect());
     }
 
     auto const height = painter->fontMetrics().height();
     painter->setPen(QPen(QColor(Qt::black)));
     for (auto placemark: placemarks) {
         QPoint position = placemark->symbolRect().bottomLeft().toPoint() + QPoint(0, qRound(0.8 * height));
         auto const popularity = placemark->placemark()->popularity();
         painter->drawText(position, QStringLiteral("p: %1").arg(popularity));
         position -= QPoint(0, placemark->symbolRect().height() + height);
         auto const zoomLevel = placemark->placemark()->zoomLevel();
         painter->drawText(position, QStringLiteral("z: %1").arg(zoomLevel));
     }
 
     painter->restore();
 }
 
 void PlacemarkLayer::setLevelTagDebugModeEnabled(bool enabled)
 {
     if (m_levelTagDebugModeEnabled != enabled) {
         m_levelTagDebugModeEnabled = enabled;
         Q_EMIT repaintNeeded();
     }
 }
 
 bool PlacemarkLayer::levelTagDebugModeEnabled() const
 {
     return m_levelTagDebugModeEnabled;
 }
 
 void PlacemarkLayer::setDebugLevelTag(int level)
 {
     if (m_debugLevelTag != level) {
         m_debugLevelTag = level;
         Q_EMIT repaintNeeded();
     }
 }
 
 #include "moc_PlacemarkLayer.cpp"