int convertMouse(MouseEvent event){
  int result;
  if (panelFont == null)   return (NO_MOUSE);
  int colOff=event.getX() - GRID_WIDTH - PANEL_MARGIN;
  int colNum=colOff / horizStep;
  int colRem=colOff % horizStep;
  if ((colNum >= panelColumns) || (colRem < TEXT_MARGIN) || (colRem > (horizStep - GRID_WIDTH - TEXT_MARGIN))) {
    return (NO_MOUSE);
  }
  int rowOff=event.getY() - GRID_WIDTH - PANEL_MARGIN;
  int rowNum=rowOff / vertiStep;
  int rowRem=rowOff % vertiStep;
  if ((rowRem < TEXT_MARGIN) || (rowRem > (vertiStep - GRID_WIDTH - TEXT_MARGIN))) {
    return (NO_MOUSE);
  }
  result=cornerIndex + (rowNum * panelColumns) + colNum;
  if (result >= cellCount)   return (NO_MOUSE);
  return (result);
}

int convertMouse ( MouseEvent event ) { int result ; if ( panelFont == null ) return ( NO_MOUSE ) ; int colOff = event . getX ( ) - GRID_WIDTH - PANEL_MARGIN ; int colNum = colOff / horizStep ; int colRem = colOff % horizStep ; if ( ( colNum >= panelColumns ) || ( colRem < TEXT_MARGIN ) || ( colRem > ( horizStep - GRID_WIDTH - TEXT_MARGIN ) ) ) { return ( NO_MOUSE ) ; } int rowOff = event . getY ( ) - GRID_WIDTH - PANEL_MARGIN ; int rowNum = rowOff / vertiStep ; int rowRem = rowOff % vertiStep ; if ( ( rowRem < TEXT_MARGIN ) || ( rowRem > ( vertiStep - GRID_WIDTH - TEXT_MARGIN ) ) ) { return ( NO_MOUSE ) ; } result = cornerIndex + ( rowNum * panelColumns ) + colNum ; if ( result >= cellCount ) return ( NO_MOUSE ) ; return ( result ) ; }
convert mouse . convert mouse coordinates to a cell index . return < no_mouse > if the mouse is not well - centered on a defined character .
