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2008/12/25

aterai

JTable FishEye Row

Code

public void mouseMoved(MouseEvent e) {
  int row = rowAtPoint(e.getPoint());
  if(prev_row==row) return;
  initRowHeigth(prev_height, row);
  prev_row = row;
}
public void initRowHeigth(int height, int ccRow) {
  int rd2      = (fishEyeRowList.size()-1)/2;
  int rowCount = getModel().getRowCount();
  int view_rc  = getViewableColoredRowCount(ccRow);
  int view_h   = 0; for(int i=0;i < view_rc;i++) view_h += fishEyeRowHeightList.get(i);
  int rest_rc  = rowCount - view_rc;
  int rest_h   = height - view_h;
  int rest_rh  = rest_h/rest_rc; rest_rh = rest_rh > 0?rest_rh:1;
  int a        = rest_h - rest_rh*rest_rc;
  int index    = -1;
  for(int i=-rd2;i < rowCount;i++) {
    int crh;
    if(ccRow-rd2 <= i && i <= ccRow+rd2) {
      index++;
      if(i < 0) continue;
      crh = fishEyeRowHeightList.get(index);
    }else{
      if(i < 0) continue;
      crh = rest_rh+(a > 0?1:0);
      a = a-1;
    }
    setRowHeight(i, crh);
  }
}

References

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