private void loadOfflineImages() {
if (OfflineLoadManager.isLoading()) {
return;
}
final int selectedZoomLevel = _targetZoomLevels[_comboTargetZoom.getSelectionIndex()];
final int tileSize = _selectedMp.getTileSize();
final int worldStartX = _offlineWorldStart.x;
final int worldStartY = _offlineWorldStart.y;
final int worldEndX = _offlineWorldEnd.x;
final int worldEndY = _offlineWorldEnd.y;
double worldX1 = Math.min(worldStartX, worldEndX);
double worldX2 = Math.max(worldStartX, worldEndX);
double worldY1 = Math.min(worldStartY, worldEndY);
double worldY2 = Math.max(worldStartY, worldEndY);
for (int zoomLevel = _validMapZoomLevel; zoomLevel <= selectedZoomLevel; zoomLevel++) {
final int maxMapTileSize = _selectedMp.getMapTileSize(zoomLevel).width;
final int areaPixelWidth = (int) (worldX2 - worldX1);
final int areaPixelHeight = (int) (worldY2 - worldY1);
final int numTileWidth = (int) Math.ceil((double) areaPixelWidth / (double) tileSize);
final int numTileHeight = (int) Math.ceil((double) areaPixelHeight / (double) tileSize);
int tilePosMinX = (int) Math.floor(worldX1 / tileSize);
int tilePosMinY = (int) Math.floor(worldY1 / tileSize);
int tilePosMaxX = tilePosMinX + numTileWidth;
int tilePosMaxY = tilePosMinY + numTileHeight;
// ensure tiles are within the map
tilePosMinX = Math.max(0, tilePosMinX);
tilePosMinY = Math.max(0, tilePosMinY);
tilePosMaxX = Math.min(tilePosMaxX, maxMapTileSize);
tilePosMaxY = Math.min(tilePosMaxY, maxMapTileSize);
for (int tilePosX = tilePosMinX; tilePosX <= tilePosMaxX; tilePosX++) {
for (int tilePosY = tilePosMinY; tilePosY <= tilePosMaxY; tilePosY++) {
// create offline tile
final Tile offlineTile = new Tile(_selectedMp, zoomLevel, tilePosX, tilePosY, null);
offlineTile.setBoundingBoxEPSG4326();
_selectedMp.doPostCreation(offlineTile);
_offlineManager.addOfflineTile(_selectedMp, offlineTile);
}
}
// set next zoom level, zoom into the map
worldX1 *= 2;
worldX2 *= 2;
worldY1 *= 2;
worldY2 *= 2;
}
// initialize progress bar
_maxQueue = MP.getTileWaitingQueue().size();
_progbarQueue.setMaximum(_maxQueue);
}
