#include <QDebug>
+#include "coordinates/scenecoordinate.h"
#include "mapcommon.h"
-#include "mapengine.h"
#include "maptile.h"
#include "mapscene.h"
-const int WORLD_PIXELS_Y = MAX_TILES_PER_SIDE * TILE_SIZE_Y;
-
MapScene::MapScene(QObject *parent)
: QGraphicsScene(parent)
, m_isRemoveStackedTilesRunning(false)
- , m_viewRect(QRect(0, 0, 0, 0))
+ , m_zoomLevel(0)
+ , m_tilesSceneRect(QRect(0, 0, 0, 0))
+ , m_viewTilesGrid(QRect(0, 0, 0, 0))
{
qDebug() << __PRETTY_FUNCTION__;
-
- setSceneRect(-WORLD_PIXELS_X, 0, WORLD_PIXELS_X * 3 - 1, WORLD_PIXELS_Y - 1);
+ setBackgroundBrush(Qt::lightGray);
+ setSceneRect(QRect(QPoint(MAP_SCENE_MIN_PIXEL_X, OSM_MAP_MIN_PIXEL_Y),
+ QPoint(MAP_SCENE_MAX_PIXEL_X, OSM_MAP_MAX_PIXEL_Y)));
}
-void MapScene::addTile(MapTile *mapTile, QString hashKey)
+void MapScene::addTile(int tileZoomLevel, QPoint tileNumber, const QPixmap &image, int viewZoomLevel)
{
qDebug() << __PRETTY_FUNCTION__;
- m_mapTilesInScene.insert(hashKey, mapTile);
- setTilePosition(mapTile);
- addItem(mapTile);
+ // tile might already be in the scene if expired tile was returned from the cache to be
+ // temporarily shown while downloading the fresh one.
+ QString hashKey = MapTile::tilePath(tileZoomLevel, tileNumber.x(), tileNumber.y());
+ MapTile *oldTile = tileInScene(hashKey);
+ if (oldTile)
+ removeTile(oldTile);
+
+ MapTile *tile = new MapTile();
+ tile->setZoomLevel(tileZoomLevel, viewZoomLevel);
+ tile->setTileNumber(tileNumber);
+ tile->setPixmap(image);
+
+ m_mapTilesInScene.insert(hashKey, tile);
+ addItem(tile);
+
+ qDebug() << __PRETTY_FUNCTION__ << "tiles count:" << m_mapTilesInScene.count();
+
+ enqueueRemoveStackedTiles(tile);
+ removeOtherLevelTiles();
}
void MapScene::enqueueRemoveStackedTiles(MapTile *newTile)
}
}
+qreal MapScene::horizontalResolutionAtLatitude(double latitude)
+{
+ qDebug() << __PRETTY_FUNCTION__;
+
+ const int SHIFT = 200;
+
+ GeoCoordinate from = GeoCoordinate(latitude, 0);
+
+ SceneCoordinate fromScene = SceneCoordinate(from);
+ SceneCoordinate toScene(fromScene.x() + SHIFT, fromScene.y());
+ GeoCoordinate to(toScene);
+
+ qreal distance = from.distanceTo(to);
+
+ return (distance / SHIFT);
+}
+
+void MapScene::moveIntersectingItemsHorizontally(QRect from, int distance)
+{
+ qDebug() << __PRETTY_FUNCTION__;
+
+ QList<QGraphicsItem *> spanItems = items(from, Qt::IntersectsItemBoundingRect);
+ foreach (QGraphicsItem *item, spanItems) {
+ if (!dynamic_cast<MapTile *>(item))
+ item->moveBy(distance, 0);
+ }
+}
+
MapTile* MapScene::tileInScene(QString hashKey)
{
qDebug() << __PRETTY_FUNCTION__;
m_isRemoveStackedTilesRunning = false;
}
-void MapScene::removeOutOfViewTiles()
+void MapScene::removeOtherLevelTiles()
+{
+ qDebug() << __PRETTY_FUNCTION__;
+
+ for (int x = m_viewTilesGrid.left(); x <= m_viewTilesGrid.right(); x++) {
+ for (int y = m_viewTilesGrid.top(); y <= m_viewTilesGrid.bottom(); y++) {
+ if (!m_mapTilesInScene.contains(MapTile::tilePath(m_zoomLevel, x, y)))
+ return;
+ }
+ }
+
+ foreach(MapTile *tile, m_mapTilesInScene) {
+ if (tile->zoomLevel() != m_zoomLevel) {
+ removeTile(tile);
+ qDebug() << __PRETTY_FUNCTION__ << "removed other level tile";
+ }
+ }
+}
+
+void MapScene::removeOutOfViewTiles(QRect tilesGrid, int zoomLevel)
{
qDebug() << __PRETTY_FUNCTION__;
- QList<QGraphicsItem *> viewTiles = items(m_viewRect, Qt::IntersectsItemBoundingRect);
- QList<QGraphicsItem *> allTiles = items();
+ QList<QGraphicsItem *> viewItems = items(m_tilesSceneRect, Qt::IntersectsItemBoundingRect);
+ QList<QGraphicsItem *> allItems = items();
//Remove tiles which are in view from allTiles
- foreach (QGraphicsItem *tile, viewTiles)
- allTiles.removeOne(tile);
+ foreach (QGraphicsItem *item, viewItems)
+ allItems.removeOne(item);
+
+ // note: add 1 so odd values are rounded up
+ int tilesGridWidthHalf = (tilesGrid.width() + 1) / 2;
+
+ // if view is near east limit of the map, then there is duplicate tiles also on the opposite
+ // side of the world which are removed from allTiles
+ if (tilesGrid.right() > ((MapTile::lastTileIndex(zoomLevel)
+ - tilesGridWidthHalf
+ + MAP_GRID_PADDING))) {
+ QRect oppositeRect = m_tilesSceneRect;
+ oppositeRect.translate(-OSM_MAP_PIXELS_X, 0);
+ QList<QGraphicsItem *> oppositeItems = items(oppositeRect, Qt::IntersectsItemBoundingRect);
+ foreach (QGraphicsItem *item, oppositeItems)
+ allItems.removeOne(item);
+ }
+
+ // if view is near west limit of the map, then there is duplicate tiles also on the opposite
+ // side of the world which are removed from allTiles
+ if (tilesGrid.left() < (tilesGridWidthHalf - MAP_GRID_PADDING)) {
+ QRect oppositeRect = m_tilesSceneRect;
+ oppositeRect.translate(OSM_MAP_PIXELS_X, 0);
+ QList<QGraphicsItem *> oppositeItems = items(oppositeRect, Qt::IntersectsItemBoundingRect);
+ foreach (QGraphicsItem *item, oppositeItems)
+ allItems.removeOne(item);
+ }
//Remove tiles out of view
- foreach (QGraphicsItem *tile, allTiles) {
- MapTile *tileToRemove = dynamic_cast<MapTile *>(tile);
- if (tileToRemove)
- removeTile(tileToRemove);
+ foreach (QGraphicsItem *item, allItems) {
+ MapTile *tile = dynamic_cast<MapTile *>(item);
+ if (tile)
+ removeTile(tile);
}
}
{
qDebug() << __PRETTY_FUNCTION__;
-// m_mapTilesInScene.remove(MapEngine::tilePath(tile->zoomLevel(),
-// tile->tileNumber().x(),
-// tile->tileNumber().y()));
-// removeItem(tile);
-// m_removeStackedTilesList.removeAll(tile);
-// delete tile;
+ m_mapTilesInScene.remove(MapTile::tilePath(tile->zoomLevel(),
+ tile->tileNumber().x(),
+ tile->tileNumber().y()));
+ removeItem(tile);
+ m_removeStackedTilesList.removeAll(tile);
+ delete tile;
+
+ qDebug() << __PRETTY_FUNCTION__ << "tiles count:" << m_mapTilesInScene.count();
}
-void MapScene::setTilePosition(MapTile *tile)
+void MapScene::setSceneVerticalOverlap(int viewHeight, int zoomLevel)
{
qDebug() << __PRETTY_FUNCTION__;
- const int maxTileNumber = (1 << tile->zoomLevel()) - 1;
-
- if ((tile->zoomLevel() >= MIN_MAP_ZOOM_LEVEL) && (tile->zoomLevel() <= MAX_MAP_ZOOM_LEVEL)
- && (tile->tileNumber().x() >= 0) && (tile->tileNumber().x() <= maxTileNumber)
- && (tile->tileNumber().y() >= 0) && (tile->tileNumber().y() <= maxTileNumber)) {
+ int overlap = viewHeight / 2 * (1 << (OSM_MAX_ZOOM_LEVEL - zoomLevel));
- tile->setPos(MapEngine::convertTileNumberToSceneCoordinate(tile->zoomLevel(),
- tile->tileNumber()));
- }
- else {
- tile->setPos(UNDEFINED, UNDEFINED);
- qCritical() << __PRETTY_FUNCTION__ << "Tile position is undefined";
- }
+ QRect rect = sceneRect().toRect();
+ rect.setTop(OSM_MAP_MIN_PIXEL_Y - overlap);
+ rect.setBottom(OSM_MAP_MAX_PIXEL_Y + overlap);
+ setSceneRect(rect);
}
void MapScene::setTilesDrawingLevels(int zoomLevel)
}
}
-void MapScene::spanItem(QGraphicsItem *item, QRect tilesSceneRect)
+void MapScene::setTilesGrid(QRect grid)
+{
+ qDebug() << __PRETTY_FUNCTION__ ;
+
+ m_viewTilesGrid = grid;
+}
+
+void MapScene::setZoomLevel(int zoomLevel)
{
- if (item->pos().x() < tilesSceneRect.left())
- item->moveBy(WORLD_PIXELS_X, 0);
- else if (item->pos().x() > tilesSceneRect.right())
- item->moveBy(-WORLD_PIXELS_X, 0);
+ qDebug() << __PRETTY_FUNCTION__ ;
+
+ m_zoomLevel = zoomLevel;
}
-void MapScene::spanItems(ScrollDirection direction)
+void MapScene::spanItems(QRectF viewSceneRect)
{
qDebug() << __PRETTY_FUNCTION__;
- QRect spanRect;
- int delta;
-
- qWarning() << __PRETTY_FUNCTION__ << "m_viewRect:" << m_viewRect.topLeft().x()
- << m_viewRect.topLeft().y() << ","
- << m_viewRect.bottomRight().x()
- << m_viewRect.bottomRight().y();
- if (direction == SCROLL_WEST) {
- spanRect = m_viewRect;
- spanRect.setTop(0);
- spanRect.setBottom(WORLD_PIXELS_Y);
- spanRect.translate(WORLD_PIXELS_X, 0);
- spanRect.setRight(sceneRect().right());
- delta = -WORLD_PIXELS_X;
- }
- else { // if (m_viewRect.right() > WORLD_PIXELS_X - 1) {
- spanRect = m_viewRect;
- spanRect.setTop(0);
- spanRect.setBottom(WORLD_PIXELS_Y);
- spanRect.translate(-WORLD_PIXELS_X, 0);
- spanRect.setLeft(sceneRect().left());
- delta = WORLD_PIXELS_X;
- }
- if (!spanRect.isNull()) {
- /// @todo ADD TRANSFORM PARAMETER
- QList<QGraphicsItem *> spanItems = items(spanRect, Qt::IntersectsItemShape, Qt::DescendingOrder);
- qWarning() << __PRETTY_FUNCTION__ << "spanItems count:" << spanItems.count();
- qWarning() << __PRETTY_FUNCTION__ << "spanRect:" << spanRect.topLeft().x()
- << spanRect.topLeft().y() << ","
- << spanRect.bottomRight().x()
- << spanRect.bottomRight().y();
- foreach (QGraphicsItem *item, spanItems) {
- item->moveBy(delta, 0);
- }
- }
+ // create rects for left and right side
+ QRect leftRect = sceneRect().toRect(); // this way we get the horizontal limits of the scene
+ leftRect.setTop(OSM_MAP_MIN_PIXEL_Y);
+ leftRect.setBottom(OSM_MAP_MAX_PIXEL_Y);
+ QRect rightRect = leftRect;
+
+ // limit rects to include only area which really must be moved
+ leftRect.setRight(-1 - (OSM_MAP_PIXELS_X - 1 - viewSceneRect.right()));
+ rightRect.setLeft(OSM_MAP_PIXELS_X + viewSceneRect.left());
+
+ Q_ASSERT_X(leftRect.right() < viewSceneRect.left(), "spanning rect right value", "move rect is in the view area");
+ Q_ASSERT_X(rightRect.left() > viewSceneRect.right(), "spanning rect left value", "move rect is in the view area");
+ // move all items which intersects the rects
+ if (leftRect.left() < leftRect.right())
+ moveIntersectingItemsHorizontally(leftRect, OSM_MAP_PIXELS_X);
+ if (rightRect.left() < rightRect.right())
+ moveIntersectingItemsHorizontally(rightRect, -OSM_MAP_PIXELS_X);
}
-void MapScene::viewRectUpdated(QRect viewRect)
+void MapScene::tilesSceneRectUpdated(QRect tilesSceneRect)
{
qDebug() << __PRETTY_FUNCTION__;
- m_viewRect = viewRect;
+ m_tilesSceneRect = tilesSceneRect;
}
projects / situare / blobdiff