Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>OVerride <code>paintComponent()</code> of <code>panel</code> instead of <code>paint()</code> of <code>JFrame</code></p> <pre><code>import javax.swing.*; import javax.swing.border.EmptyBorder; import java.awt.*; import java.awt.event.*; public class LineDraw extends JFrame { private JPanel contentPane; JScrollPane scrollPane = new JScrollPane(); JPanel panel = new JPanel(){ @Override public void paintComponent(Graphics g) { super.paintComponent(g); g.drawLine(btnNewButton.getLocation().x,btnNewButton.getLocation().y, btnNewButton_1.getLocation().x,btnNewButton_1.getLocation().y); } }; JButton btnNewButton = new JButton("New button"); JButton btnNewButton_1 = new JButton("New button"); /** * Launch the application. */ public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { try { LineDraw frame = new LineDraw(); frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } }); } /** * Create the frame. */ public LineDraw() { setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 450, 300); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); setContentPane(contentPane); contentPane.setLayout(null); scrollPane.setBounds(0, 0, 424, 251); contentPane.add(scrollPane); scrollPane.setViewportView(panel); panel.setLayout(null); btnNewButton.setBounds(27, 98, 89, 23); panel.add(btnNewButton); btnNewButton_1.setBounds(213, 137, 89, 23); panel.add(btnNewButton_1); initListener(); } private void initListener() { btnNewButton.addMouseMotionListener(new MouseAdapter() { @Override public void mouseDragged(MouseEvent me) { super.mouseDragged(me); Point pos = panel.getMousePosition(); System.out.println(pos); if(panel.getWidth()-pos.x&lt;50 &amp;&amp; panel.getHeight()-pos.y&lt;50) { panel.setPreferredSize(new Dimension(panel.getWidth()+50,panel.getHeight()+50)); } else if(panel.getHeight()-pos.y&lt;50) { panel.setPreferredSize(new Dimension(panel.getWidth(),panel.getHeight()+50)); } else if(panel.getWidth()-pos.x&lt;50) { panel.setPreferredSize(new Dimension(panel.getWidth()+50,panel.getHeight())); } btnNewButton.setLocation(pos); validate(); repaint(); } }); btnNewButton_1.addMouseMotionListener(new MouseAdapter() { @Override public void mouseDragged(MouseEvent me) { super.mouseDragged(me); Point pos = panel.getMousePosition(); if(panel.getWidth()-pos.x&lt;50 &amp;&amp; panel.getHeight()-pos.y&lt;50) { panel.setPreferredSize(new Dimension(panel.getWidth()+50,panel.getHeight()+50)); } else if(panel.getHeight()-pos.y&lt;50) { panel.setPreferredSize(new Dimension(panel.getWidth(),panel.getHeight()+50)); } else if(panel.getWidth()-pos.x&lt;50) { panel.setPreferredSize(new Dimension(panel.getWidth()+50,panel.getHeight())); } btnNewButton_1.setLocation(panel.getMousePosition()); validate(); repaint(); } }); } } </code></pre> <p>And remove the <code>paint()</code> method entirely.</p>
    singulars
    1. This table or related slice is empty.
    1. POJava working with jpanel and jscrollpane while drawing lines
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USStanislavL
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POJava working with jpanel and jscrollpane while drawing lines
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. CO+1 A similar approach is shown [here](http://stackoverflow.com/a/3952082/230513).
      singulars
      1. PO
      1. UStrashgod
    2. COHelped a lot thank you
      singulars
      1. PO
      1. USKingalione
    3. COYou can also check http://java-sl.com/connector.html as example of connecting lines
      singulars
      1. PO
      1. USStanislavL
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload