You can simply adjust the "height" until "scrollHeight" is equals to
"clientHeight".
The problem is that you cannot use this to shrink the TextArea
automatically. In this case you would have to set the height to
something very low, like 10px, and then check scrollHeight and
readjust "height" again.
On 26 Aug., 11:59, "jakob.korherr" <[EMAIL PROTECTED]> wrote:
> I'm afraid it is not that easy. You can not just count the '\n's in
> the text, because you also have to look at the length of each line. As
> we all know if the line is longer than the width of the textarea, it
> will display the new words in a new line automatically and without a
> '\n'.
>
> So you have to:
>
> 1) count the '\n's in the text
> 2) take a look at the length of every line and find out how often it
> is broken automatically (maybe with scrollWidth - I don't know..)
>
> On Aug 25, 10:31 am, Jason Morris <[EMAIL PROTECTED]> wrote:
>
> > Theres no automatic way to do this. What you would need to do is:
>
> > Add a KeyboardListener to the TextArea and in onKeyDown look for the number
> > of
> > lines in the TextArea's content (plus one if the key is KEY_ENTER). Use
> > TextArea.setVisibleLines to make sure that the size of the TextArea is >=
> > the
> > number of lines in it's content.
>
> > Something like:
>
> > final TextArea text = new TextArea();
>
> > text.addKeyboardListener(new KeyboardListenerAdapter() {
> > public void onKeyDown(Widget sender, char keyCode, int mods) {
> > int lines = 0;
> > final String content = text.getText();
>
> > for(int i = 0; i != -1; i = content.indexOf("\n", i + 1)) {
> > lines++;
> > }
>
> > if(keyCode == KEY_ENTER) {
> > lines++;
> > }
>
> > if(text.getVisibleLines() < lines) {
> > text.setVisibleLines(lines);
> > }
> > }
>
> > });
>
> > Should do the trick.
>
> > sri wrote:
> > > Hello,
> > > I'm new to GWT. Is there a way to NOT have a scrollbar for the
> > > TextArea and have it grow automatically when data goes beyond the
> > > visible lines? We do not use gwt-ext. I was able to take the scrollbar
> > > out with overflow:hidden but was not able to do the autosize part.
>
> > > Thanks in advance for any help.
>
> > > -sri
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