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Kova · Guest

Hi.
I have a problem. In my application in one fixed size JScrollPane user
can add rows of stuff dynamicly at runtime. Focus is then set to the
first component in a new row (requestFocusInWindow()) but jscrollpane's
vertical bar dosen't automaticly scrolls down. Can anyone help me out
with this please? Thank you.

--
Kova

Andrey Kuznetsov · Guest

Kova · Guest

Andrey Kuznetsov wrote:

Andrey Kuznetsov · Guest

Kova · Guest

Andrey Kuznetsov wrote:

Andrey Kuznetsov · Guest

Kova · Guest

Andrey Kuznetsov wrote:

Andrey Kuznetsov · Guest

import info.clearthought.layout.TableLayout;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.HashMap;

public class test1 extends JFrame implements Action {
private JPanel artikli_pnl;
private JScrollPane artikli_sp;
private HashMap artikli_indexi_hmap;
private int artikli_index_int;
private TableLayout artikli_tlayout;

private JTextField temp_tf;
private int temp_int, i;

double artikli_tlayout_size[][] = {{100, 5, 50, 5, 50, 5, 70}, {}};

public static void main(String[] args) {
test1 GlavniFrame_SMFW = new test1();
GlavniFrame_SMFW.setBounds(0, 0, 800, 600);
GlavniFrame_SMFW.setVisible(true);
}

public test1() {
super("test1");
addWindowListener(new WindowAdapter() {
public void WindowClosing(WindowEvent e) {
System.exit(0);
}
});
getContentPane().setLayout(new FlowLayout());
artikli_pnl = new JPanel();
artikli_sp = new JScrollPane(artikli_pnl);
artikli_sp.setPreferredSize(new Dimension(400, 200));
this.getContentPane().add(artikli_sp);

artikli_tlayout = new TableLayout(artikli_tlayout_size);
artikli_pnl.setLayout(artikli_tlayout);
artikli_indexi_hmap = new HashMap();
artikliAddRow();
artikliAddRow();
artikliAddRow();
artikli_sp.setBorder(BorderFactory.createEmptyBorder());
for (int i = 0; i < artikli_pnl.getComponentCount(); i++) {

((JTextField)
artikli_pnl.getComponent(i)).getInputMap().put(KeyStroke.getKeyStroke("ENTER"),
"doAction");

((JTextField)
artikli_pnl.getComponent(i)).getActionMap().put("doAction",
this);
}
}

private void artikliAddRow() {
i = artikli_pnl.getComponentCount() / 4;
System.out.println(i);
artikli_tlayout.insertRow(i, 21.0);

temp_tf = new JTextField();
artikli_pnl.add(temp_tf, "0, " + i + ", f, f");
artikli_indexi_hmap.put(temp_tf, new Integer(artikli_index_int++));
temp_tf.getInputMap().put(KeyStroke.getKeyStroke("ENTER"),
"doAction");
temp_tf.getActionMap().put("doAction", this);

temp_tf = new JTextField();
artikli_pnl.add(temp_tf, "2, " + i + ", f, f");
artikli_indexi_hmap.put(temp_tf, new Integer(artikli_index_int++));
temp_tf.getInputMap().put(KeyStroke.getKeyStroke("ENTER"),
"doAction");
temp_tf.getActionMap().put("doAction", this);

temp_tf = new JTextField();
artikli_indexi_hmap.put(temp_tf, new Integer(artikli_index_int++));
artikli_pnl.add(temp_tf, "4, " + i + ", f, f");
temp_tf.getInputMap().put(KeyStroke.getKeyStroke("ENTER"),
"doAction");
temp_tf.getActionMap().put("doAction", this);

temp_tf = new JTextField();
artikli_indexi_hmap.put(temp_tf, new Integer(artikli_index_int++));
artikli_pnl.add(temp_tf, "6, " + i + ", f, f");
temp_tf.getInputMap().put(KeyStroke.getKeyStroke("ENTER"),
"doAction");
temp_tf.getActionMap().put("doAction", this);

// AUTO SCROLL STUFF TO CONFIGURE:
Rectangle bounds = temp_tf.getBounds();
artikli_pnl.scrollRectToVisible(bounds);

}

public void actionPerformed(ActionEvent e) {
if (((JTextField) e.getSource()).getParent() == artikli_pnl) {
temp_int =
((Integer)
artikli_indexi_hmap.get(e.getSource())).intValue() + 1;
if (temp_int >= artikli_pnl.getComponentCount()) {
artikliAddRow();
artikli_sp.revalidate();
artikli_sp.repaint();
}
temp_tf = (JTextField) artikli_pnl.getComponent(temp_int);
temp_tf.requestFocusInWindow();
temp_tf.selectAll();

// AUTO SCROLL STUFF TO CONFIGURE:
Rectangle bounds = temp_tf.getBounds();
artikli_pnl.scrollRectToVisible(bounds);
}
}

public Object getValue(String key) {
return null;
}

public void putValue(String key, Object value) {
}
}

--
Andrey Kuznetsov
http://uio.dev.java.net Unified I/O for Java
http://reader.imagero.com Java image reader
http://jgui.imagero.com Java GUI components and utilities