asked on

Add in specific position in text area

I create simple editor , when the user click one of sub-menu another frame appear

which ask the user to enter some information , when the user click add the information will be

added to JTextArea in specific position (the position is in the place of curser ) by the way the
JtextArea is in another fram

please look at the picture to understand the problem
P.png

for_yan

So waht is your question?
can you post the code?

lovely_rosa

ASKER

my question is how can I achieve that

for_yan

JTextArea has methods setCaretPosition getCaretPosition() but it should be insie the text - if you don;t have any text you cannot set the caret position
one thisn is you ca dd some lines and spaces and position to the place where you need

lovely_rosa

ASKER

here is the code for my sub- menu

class AsserAlways extends AbstractAction
  {

     public AsserAlways() {
      super("Use Always Operator ");
    }
      public void actionPerformed(ActionEvent ev)
      {
          blackline = BorderFactory.createLineBorder(Color.black);
          loweredbevel = BorderFactory.createTitledBorder(
                          loweredbevel, "Example : // 1.2.a  Assert  Always (condition))",
                          TitledBorder.CENTER,
                          TitledBorder.BELOW_BOTTOM);
         // loweredbevel = BorderFactory.createLoweredBevelBorder();

          JFrame fre = new JFrame();
          fre.setName("Always Assertion Operator Form");
          fre.setSize(300, 300);
          JPanel panel = new JPanel ();
            JPanel panel3 = new JPanel ();
              JLabel l3 = new JLabel ();
              l3.setText("Assertion use always ");
              l3.setBorder(loweredbevel);
          panel.setBackground(Color.ORANGE );
          panel.setLayout(new GridLayout(1,2));
          JPanel panel2 = new JPanel ();
          panel2.setBackground(Color.ORANGE  );

          panel3.setLayout(new GridLayout(1,1));
          panel3.add(l3);
          panel.setLayout(new GridLayout(1,2));
         panel2.setLayout(new GridLayout(2,2));
         //-----------------------------------------
          JLabel l1 = new JLabel ();
          l1.setText("Enter The Label ");
          l1.setBorder(blackline);
           f = new JTextField();
           f.setText("1.2.A");
          f.setSize(10, 10);
           f.setBorder(blackline);
            panel.add(l1);
          panel.add(f);
      //----------------------------------------------
           JLabel l2 = new JLabel ();
          l2.setText("Enter The Condition ");
           l2.setBorder(blackline);
           f2 = new JTextField();
            f2.setText("(condition)");
          f2.setSize(10, 10);
          f2.setBorder(blackline);
          panel2.add(l1);
          panel2.add(f);
            panel2.add(l2);
          panel2.add(f2);


      //-----------------------------------------------
          JButton jb = new JButton ();
          jb.setBounds(10, 10, 10, 10);
          jb.setText("Add");


       //-------------------------------------

         fre.getContentPane().add(panel3,BorderLayout.NORTH);
         fre.getContentPane().add(panel2,BorderLayout.CENTER);
         fre.getContentPane().add(jb,BorderLayout.SOUTH);



           fre.setVisible(true);



          jb.addActionListener(
                  new ActionListener ()
          {
             public void actionPerformed(ActionEvent ev)
             {
                 String strin="//"+"   " +  f.getText()+"  "+"Assert"+" "+"Always"+"  "+"("+f2.getText()+" )";
   textComp.insert(strin, 0);
             }
          }
            );

         
      }

  }

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for_yan

check here about JTextArea padding:
http://www.coderanch.com/t/339805/GUI/java/JTextArea-padding

for_yan

I guees this padding shoul help you to put the text to the place you want

lovely_rosa

ASKER

here in the code I add action listener to the button its name (jb) when click add button the string will be post in texcomp which is the jtextarea but is not in the cusrer position I want to add in the curser position

jb.addActionListener(
                  new ActionListener ()
          {
             public void actionPerformed(ActionEvent ev)
             {
                 String strin="//"+"   " +  f.getText()+"  "+"Assert"+" "+"Always"+"  "+"("+f2.getText()+" )";
   textComp.insert(strin, 0);
             }
          }
            );

Open in new window

lovely_rosa

ASKER

but how can I get the curser position ??

ASKER CERTIFIED SOLUTION

for_yan

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for_yan

But there would not be any caret position until theere is text in JTextArea, this position would be 0,
as caret position cannot be bigger than the length of the string of text in the componenet

lovely_rosa

ASKER

thanks for you

for_yan

You are always welcome.