public void openDialog() {
BaseMapLayer mainLayer = mapView.getMainLayer();
if (!(mainLayer instanceof MapTileLayer) || !((MapTileLayer) mainLayer).isVisible()) {
AccessibleToast.makeText(ctx, R.string.maps_could_not_be_downloaded, Toast.LENGTH_SHORT)
.show();
}
final ITileSource mapSource = ((MapTileLayer) mainLayer).getMap();
if (mapSource == null || !mapSource.couldBeDownloadedFromInternet()) {
AccessibleToast.makeText(ctx, R.string.maps_could_not_be_downloaded, Toast.LENGTH_SHORT)
.show();
return;
}
final RotatedTileBox rb = mapView.getCurrentRotatedTileBox();
final int max = mapSource.getMaximumZoomSupported();
// get narrow zoom
final int zoom = rb.getZoom();
// calculate pixel rectangle
AlertDialog.Builder builder = new AlertDialog.Builder(ctx);
LayoutInflater inflater =
(LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(R.layout.download_tiles, null);
((TextView) view.findViewById(R.id.MinZoom)).setText(zoom + ""); // $NON-NLS-1$
((TextView) view.findViewById(R.id.MaxZoom)).setText(max + ""); // $NON-NLS-1$
final SeekBar seekBar = (SeekBar) view.findViewById(R.id.ZoomToDownload);
seekBar.setMax(max - zoom);
seekBar.setProgress((max - zoom) / 2);
final TextView downloadText = ((TextView) view.findViewById(R.id.DownloadDescription));
final String template = ctx.getString(R.string.tiles_to_download_estimated_size);
updateLabel(zoom, rb.getLatLonBounds(), downloadText, template, seekBar.getProgress());
seekBar.setOnSeekBarChangeListener(
new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
updateLabel(zoom, rb.getLatLonBounds(), downloadText, template, progress);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {}
});
builder.setPositiveButton(
R.string.shared_string_download,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
run(zoom, seekBar.getProgress(), rb.getLatLonBounds(), mapSource);
}
});
builder.setNegativeButton(R.string.shared_string_cancel, null);
builder.setView(view);
builder.show();
}
@Override
public int getMaximumZoomSupported() {
getDatabase();
return base != null ? base.getMaximumZoomSupported() : maxZoom;
}