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simple swing question

simple swing question# Java - 爪哇娇娃

c*u2003-10-13 07:10

1 楼

I tried to draw a graph on a jpanel, then put jtextareas and
jlabels onto that jpanel, the textareas and jlabels form an area, which
always cover my grphics completely and mess it up. Any solution?

c*u2003-10-13 07:10

2 楼

ft. when I changed jtextarea to textarea, it works fine.

【在 c****u 的大作中提到】

: I tried to draw a graph on a jpanel, then put jtextareas and
: jlabels onto that jpanel, the textareas and jlabels form an area, which
: always cover my grphics completely and mess it up. Any solution?

c*t2003-10-13 07:10

3 楼

Textarea is AWT. Mixing Swing with AWT is not good.
Perhaps, if you give a few screen shots, we will better understand
your problem.

【在 c****u 的大作中提到】

: ft. when I changed jtextarea to textarea, it works fine.

g*y2003-10-13 07:10

4 楼

You need to set the size and location of components, if you didn't set the
LayoutManager. By default, Java use flowlayout.

【在 c****u 的大作中提到】

c*u2003-10-13 07:10

5 楼

yeah, I know it's no good. but deadline is approaching, gotta have a working
version first. I get graphics from a jpanel, draw something,
then put some text areas onto the graph for user input. To my surprise,
jtextextareas always form a partial "new panel" which covers my graph.
I set layout as null and just give the coordinates and size of the
text areas. Also, when I set background color of that jpanel,
I can't display my graphics properly as well. Perhaps I
should reimplement my drawgraph me

【在 c*****t 的大作中提到】

: Textarea is AWT. Mixing Swing with AWT is not good.
: Perhaps, if you give a few screen shots, we will better understand
: your problem.

m*t2003-10-13 07:10

6 楼

I know you probably have taken care of the basics, but just to get
the insanity out of the way - you are inserting your j*** components
into the rootpane of the jpanel not the jpanel itself, right?

【在 c****u 的大作中提到】

: yeah, I know it's no good. but deadline is approaching, gotta have a working
: version first. I get graphics from a jpanel, draw something,
: then put some text areas onto the graph for user input. To my surprise,
: jtextextareas always form a partial "new panel" which covers my graph.
: I set layout as null and just give the coordinates and size of the
: text areas. Also, when I set background color of that jpanel,
: I can't display my graphics properly as well. Perhaps I
: should reimplement my drawgraph me

m*t2003-10-13 07:10

7 楼

Alas! never mind, jpanel doesn't have the rootpane issue. It's JFrame,etc.
Sorry for the confusion. (talk about the "insanity"...)