🚀 go-pugleaf

"San LUC \(webmail.alten.fr\)" <sluc@webmail.alten.fr> wrote:
> Does anyone how I can test if a row is visible in a jtable and scroll to it
> ?


UNTESTED:


Rectangle visible = table.getVisibleRect();
Rectangle r  = table.getCellRect(row, 0, true);

if (visible.contains(r))
    System.err.println("Completely visible");
else if (visible.intersects(r))
    System.err.println("Partly visible");
else
    System.err.println("Not visible");



Scrolling can be done with the standard method scrollRectToVisible.

public static void makeRowVisible(JTable table, int row)
{
    /* These two lines are new since the last time I posted this. */
    if (table.getColumnCount() == 0)
        return;

    if (row < 0 || row >= table.getRowCount())
        throw new IllegalArgumentException(String.valueOf(row));


    Rectangle visible = table.getVisibleRect();

    Rectangle cell = table.getCellRect(row, 0, true);


    if (cell.y < visible.y)
    {
        visible.y = cell.y;

        table.scrollRectToVisible(visible);
    }
    else if (cell.y + cell.height > visible.y + visible.height)
    {
        visible.y = cell.y + cell.height - visible.height;

        table.scrollRectToVisible(visible);
    }
}

Followup-to set.


Christian
-- 
"But glory doesn't mean 'a nice knock-down argument,'" Alice objected.
"When I use a word," Humpty Dumpty said, in a rather scornful tone, "it
means just what I choose it to mean -- neither more nor less."
                                              Through the Looking-glass