void MapView::getTile(int x, int y, int z)
{
if (MapSource.id == None) return;
TileRequest request(x,y,z,MapSource);
QByteArray *tile = getTileFromDB(z,x,y,MapSource.url);
if (tile != 0){ //checks if tile is actually in DB
placeTile(tile, x, y, z);
} else if (currentZoom == z && !currentRequests.contains(request)) //why currentZoom == z?
{ /* QNetworkRequest request(QUrl(qPrintable(
MapSource.url+QString::number(z)+"/"+
QString::number(x)+"/"+
QString::number(y)+".png"))); */
QElapsedTimer timer; timer.start();
requestStack.removeAll(request); //removes all previous occurences of the request
//check if concurrent download count has been reached
if (currentRequests.count()<requestLimit)
{
//if not, proceed to download request
networkManager->get(request);
currentRequests.append(request);
} else {
//if it has, put request on stack
requestStack.append(request);
if (requestStack.count() > maxReqStackSize) {
requestStack.removeAt(0);
}
}
qDebug("queueing took "+QString::number(timer.elapsed()));
}
}
void MapView::placeTile(QByteArray *tileData, int x, int y, int z)
{
QPixmap tilePixmap;
tilePixmap.loadFromData(*tileData); delete tileData;
if (tilePixmap.isNull()) {qDebug("tile pixmap null"); return; }
OSMTile *tile = new OSMTile(tilePixmap, QPoint(x,y), z);
placeTile(tile);
}
void MapView::tileDownloaded(QNetworkReply *reply)
{
//recreate original request from reply and delete it from the current requests
QElapsedTimer timer; timer.start();
TileRequest finishedRequest(reply);
currentRequests.removeAll(finishedRequest);
//check to see if any requests are left in stack
if (!requestStack.isEmpty())
{
//pop the last request in the stack
TileRequest request = requestStack.takeLast();
//proceed to download the request
networkManager->get(request);
currentRequests.append(request);
}
QByteArray *data = new QByteArray(reply->readAll());
QByteArray *cpData = new QByteArray(*data);
qDebug("curreq"+QString::number(currentRequests.size())+
" reqstck"+QString::number(requestStack.size()));
//check if actual data was returned
if (data->length()!=0) //todo: check if data is valid
{
//AddTileToDBThread* t = new AddTileToDBThread(finishedRequest.z(),finishedRequest.x(),finishedRequest.y(),cpData,finishedRequest.mapSource().url);
//t->start();
//the method below also checks presence of tile in db
addTileToDB(finishedRequest.z(),finishedRequest.x(),finishedRequest.y(),data,finishedRequest.mapSource().url);
//qDebug(qPrintable("Tile image file size:" + QString::number(data.length()) + " bits"
// "(x:"+QString::number(x)+" y:"+QString::number(y)+" z:"+QString::number(z)+")"));
}
else emit noNetwork();
qDebug("adding tile to db took "+QString::number(timer.elapsed())); timer.restart();
//check if zoomlevel and map source did not change while downloading
if( currentZoom == finishedRequest.z() && finishedRequest.mapSource().url == MapSource.url)
placeTile(data, finishedRequest.x(), finishedRequest.y(), finishedRequest.z());
qDebug("placing tile took "+QString::number(timer.elapsed()));
reply->deleteLater(); //do not 'delete reply;'
}
void ShuffleTiles::update(float time)
{
Tile *tileArray = (Tile*)_tiles;
for (int i = 0; i < _gridSize.width; ++i)
{
for (int j = 0; j < _gridSize.height; ++j)
{
tileArray->position = Vec2((float)tileArray->delta.width, (float)tileArray->delta.height) * time;
placeTile(Vec2(i, j), tileArray);
++tileArray;
}
}
}
void CCShuffleTiles::update(float time)
{
int i, j;
Tile *tileArray = (Tile*)m_pTiles;
for (i = 0; i < m_sGridSize.width; ++i)
{
for (j = 0; j < m_sGridSize.height; ++j)
{
tileArray->position = ccpMult(ccp((float)tileArray->delta.width, (float)tileArray->delta.height), time);
placeTile(ccp(i, j), tileArray);
++tileArray;
}
}
}
void CCShuffleTiles::update(ccTime time)
{
int i, j;
Tile *tileArray = (Tile*)m_pTiles;
for (i = 0; i < m_sGridSize.x; ++i)
{
for (j = 0; j < m_sGridSize.y; ++j)
{
tileArray->position = ccpMult(ccp((float)tileArray->delta.x, (float)tileArray->delta.y), time);
placeTile(ccg(i, j), tileArray);
++tileArray;
}
}
}
