asked on

Test area with color

I need a JTextArea or other Component just to add text into.

Something like
public void JTextArea.append(String, Color) ...

Would be perfect

Thanks

Mayank S

Don't understand your Q properly. You can use JTextArea, right?

Oh, or do you want that color should be appended in different colours in the same JTextArea? I guess it won't allow that. JTextArea inherits the setForeground () method, which will set the fore-ground colour for all the text, not for a particular text.

You can try using a TextPane or a JEditorPane.

sciuriware

You can use HTML to set fonts and colours!

;JOOP!

zzynx

With a JLabel you can introduce color via HTML:

JLabel label = new JLabel();
label.setText("<HTML><color="green">This is green text");

If you want to append, make your own MyLabel extends JLabel

class MyLabel extends JLabel {

public MyLabel() {
super();
}
public MyLabel(String text) {
super(text);
}

public void append(String textToAppend, Color color) {
String text = getText();
text += " <color=\"";

// get the color code in hex out of Color and append it to the text variable

text += "\" + textToAppend;
setText(text);
}

}

sciuriware

In other words:

most components, like JButton, JLabel, JTextArea .... accept HTML texts, even the TipTools for those components
do it.

;JOOP!

Mayank S

>> You can use HTML to set fonts and colours!

Can you do that in JTextArea? I don't think so. You can do it in JEditorPane.

sciuriware

Right, and JEditorPane even accepts .rtf (Rich Text).

;JOOP!

zzynx

public void append(String textToAppend, Color color) {
String text = getText();
text += " <color=\"#";
text += Integer.toString(color.getRed(), 16);
text += Integer.toString(color.getGreen(), 16);
text += Integer.toString(color.getBlue(), 16);
text += "\"> + textToAppend;
setText(text);
}

zzynx

In the append() function I added a to start another line.
Up to you to decide if you want this.
Or if you incorporate that in the text you pass to append().

Mayank S

zzynx, I tried your code. It displayed:

 <color="#00ff">Hi <color="#ff00">How're you doing in

the JTextArea, when I called it like: t.append ( "Hi", Color.blue ) ; t.append ( "How're you doing", Color.red ) ;

sciuriware

Add <HTML> in front!!!!

;JOOP!

sciuriware

The correct string should be "<HTML><COLOR=\"#FF0000\">Your text"

;JOOP!

zzynx

1) I was talking about a JLabel
2) Add <HTML> in front:

public void append(String textToAppend, Color color) {
String text = getText();
if (text.isEmpty())
text = "<HTML>";
text += " <color=\"#";
text += Integer.toString(color.getRed(), 16);
text += Integer.toString(color.getGreen(), 16);
text += Integer.toString(color.getBlue(), 16);
text += "\"> + textToAppend;
setText(text);
}

Mayank S

Well, obviously, I had added "<HTML>" at the start.

Mayank S

>> I was talking about a JLabel

Ah, that solves it. I was trying with JTextArea. Ok, matter resolved.

sciuriware

And .... zzynx, your code doesn't give 6 hexadecimal digits!

;JOOP!

zzynx

>> zzynx, your code doesn't give 6 hexadecimal digits!
Indeed, some changes to assure leading zeroes are needed.
But hey, the idea is clear, isn't it?

Even some other small changes are needed:

public void append(String textToAppend, Color color) {
String text = getText();
if (text.length()==0)
text = "<HTML>";
else
text += " ";
text += "<color=\"#";

// The (better) color stuff, sciuriware will certainly provide ;)
// ....

text += "\">" + textToAppend;
setText(text);
}

sciuriware

JFrame mainFrame = new JFrame("Title");
Container c = mainFrame.getContentPane();
JLabel label = new JLabel("<HTML>HELLO!</STYLE>");
c.add(label, BorderLayout.CENTER);

Works fine; if it does for 'oleber' we can make it more complex .....

;JOOP!

zzynx

Hi sciuriware,

What does that do?
I experience it is needed. But can you tell me why?

sciuriware

... another kind of BOLD.

We are helping someone to get something working in principle.
The rest he/she should learn from a basical HTML course (or post in the related Forum).

;JOOP!

Mayank S

Yes, getting back to the discussion of JTextArea ;-) you still need a JEditorPane or something. You cannot edit a JLabel.

zzynx

>> You cannot edit a JLabel.
You certainly can. I just did it.

This is the working append function for MyLabel:

public void append(String textToAppend, Color color) {
String text = getText();
if (text.length()==0)
text = "<HTML>";
else
text += " ";
text += "<font color=\"#";
String tmp = Integer.toString(color.getRed(), 16);
if (tmp.length()==1) text += "0";
text += tmp;
tmp = Integer.toString(color.getGreen(), 16);
if (tmp.length()==1) text += "0";
text += tmp;
tmp = Integer.toString(color.getBlue(), 16);
if (tmp.length()==1) text += "0";
text += tmp;
text += "\">" + textToAppend;
setText(text);
}

You use it like:

MyLabel label = new MyLabel();
label.append("Hello", new Color(150,254,244) );
label.append("world!", new Color(220,120,220) );

oleber

ASKER

The HTML is not a problem.
Editing is not necessary.
But selecting to do a copy is necessary so JLabel is not a good component.

Mayank S

You are not editing it. You are just changing the text inside it by the setText () method. What I meant was - editing by typing the text from the keyboard. Perhaps the questioner has such requirements, which is why he asked about JTextArea.

Mayank S

>> You are not editing it. You are just changing the text inside it by the setText () method

That was for zzynx.

Mayank S

>> But selecting to do a copy is necessary

Can you elaborate more on that?

oleber

ASKER

I need to do copy & past of some text like carecters.

The aplication is calling some scripts and I need to see the STDOUT in black and the STDERR in red.

For instance some file paths will appear there. I will use them in the shell for debugging errors.

ASKER CERTIFIED SOLUTION

Mayank S

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

zzynx

And with a little modifications you can use the stuff I have at the append() function

SOLUTION

zzynx

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

Mayank S

>> your_new_HTML_text

- in my code, would have all color, font, etc tags, like:

" Hi "

CEHJ

String sColor = "#" + Integer.toHexString(color.hashCode() & 0xFFFFFF);

zzynx

hi oleber,
what about closing this question by accepting one or more of the comments?

zzynx

As you can see, I already asked the author to close this Q by accepting one or more comments.
I think I gave some valuable input to solve the author's problem.
That's why I expect one of my comments to be accepted as assisted answer.

sciuriware

Agreed,
;JOOP!

Mayank S

Recommendation: Split zzynx, sciuriware, mayankeagle, CEHJ.

oleber

ASKER

Sorry I had the ideia this was losed and I has outside for some time.
I'm thinking to split the points by 'zzynx' and 'mayankeagle' But I don't know how to do that?

Can someone help me

sciuriware

When you click accept, there is an option "Split points".
And 150 can be divided several ways ....

;JOOP!

zzynx

>> I'm thinking to split the points by 'zzynx' and 'mayankeagle' But I don't know how to do that?
See: https://www.experts-exchange.com/help.jsp#hi69

Mayank S

The Split Points link should be just above the Comment Box. Can you not see it?

oleber

ASKER

sorry for making you all wait.

zzynx

Thanks for accepting
(at last ;°)

Mayank S

;-)