[KPhotoAlbum] Bug: Clicking on fullscreen image does clear scale status

[Christoph Moseler]

Hi,

there seems to be a bug in fullscreen view. When I left-click on an 
image, release the button an then move around with the mouse, the dashed 
box that normaly selects the region to be scaled, is sticking to the 
mouse cursor. (Even if I go to the next picture.)

I think this is because in Viewer::ViewHandler::mouseReleaseEvent _scale 
is set to false only if the mouse was moved between clicking and 
releasing the mouse botton.

     if ( _scale && (e->pos()-_start).manhattanLength() > 1 ) {
         _display->zoom( _start, e->pos() );
         _scale = false;
         return true;
     }

That should work (but not tested):

     if ( _scale ) {
         _scale = false;
         if ( (e->pos()-_start).manhattanLength() > 1 ) {
         _display->zoom( _start, e->pos() );
             return true;
         }
     }

Cheers,
Christoph