Bug 16214

Summary: Add Term.getText() to public API
Product: cnd Reporter: Jiri Skrivanek <jskrivanek>
Component: TerminalemulatorAssignee: akemr <akemr>
Status: CLOSED FIXED QA Contact: ivan <ivan>
Priority: P1 CC: ivan, jchalupa, jtulach
Version: 3.xKeywords: API
Target Milestone: 6.x   
Hardware: All   
OS: All   
Issue Type: ENHANCEMENT Exception Report:

Description Jiri Skrivanek 2001-10-04 09:28:12 UTC
It would be useful for testing to be able to get whole content of the Output
Comment 1 Jan Chalupa 2001-11-27 11:53:40 UTC
Target milestone -> 3.3.1.
Comment 2 Jan Chalupa 2001-11-27 11:57:10 UTC
Target milestone -> 3.3.1.
Comment 3 Jan Chalupa 2002-01-11 14:04:54 UTC
Target milestone -> 3.4
Comment 4 Jan Chalupa 2002-01-11 14:08:37 UTC
Target milestone -> 3.4
Comment 5 Jan Chalupa 2002-01-11 14:09:28 UTC
Target milestone -> 3.4
Comment 6 Jan Chalupa 2002-01-11 14:12:02 UTC
Target milestone -> 3.4
Comment 7 akemr 2002-02-12 16:04:30 UTC
I suggest to use "redirection to file" feature and 
then you can get text simply from this file..

What do you think?
Comment 8 Jiri Skrivanek 2002-02-13 10:06:54 UTC
I don't like this solution. I can redirect to file even after tab pane
appears in Output window. It is after first string is written to
output and this string is not written to a file. Or is there exist
some API method to redirect to file?
I think it would be much more simplier to just call term.getText(). Is
it hard to implement it?
Comment 9 Lukas Hasik 2002-02-13 10:39:26 UTC
Jiri, you can redirect output in general. Use 'Redirection to
File'(true) and 'Redirection Directory'(path) properties in Options
dialog [IDE Configuration->Look&Feel->Output Window]
Comment 10 akemr 2002-02-13 14:15:40 UTC
If you got term instance, you can use following call
to get content of Term buffer (=getText):

term.textWithin( Coord.make(0,0), term.getCursorCoord() )

I think it should be sufficient for testing purposes.

If there won't be objection (I discussed it with Jiri before)
I'll close this issue as WONTFIX.
Comment 11 Jiri Skrivanek 2002-02-14 06:51:36 UTC
Suggested solution works for me, but it ignores new line characters
('\n'). I don't know, if it is desired behavior of textWithin() method
or if it is a bug.
Comment 12 akemr 2002-02-14 08:33:23 UTC
I see, but I'm not sure - Ivan, what is your opinion?

IMO solutions can be:
1. Change calling visitLines in textWithin to:
visitLines(begin, end, true,... 
2. Add boolean newlines parameter to textWithin method
3. Add new method getText, which will return whole text (with newlines)..


Comment 13 _ ttran 2002-02-14 09:04:23 UTC
this is a must-have.  QA has been complaining about this missing
feature for a long time.  I raised prio to P1 for 3.4
Comment 14 Jan Chalupa 2002-02-14 09:22:05 UTC
I'm not sure that the solution proposed by Ales is generally useful.
The usage of the Term component is an implementation detail. It's true
that we have ways to find a reference to the Term instance and call
its methods, but it's still a hack that may not work for other types
of users.

IMO, a clearner solution would be to extend the public API (of
InputOutput?) and provide methods allowing clients to get the contents
of the Output window tab.
Comment 15 akemr 2002-02-14 12:35:23 UTC
It's not easy to extend API, because InputOutput is an interface :-(

Anyway, I don't think there should be general solution for all
users. There is only one request for getText (this one from QA) - for
testing purposes, and there it will be sufficient, won't be?
Comment 16 Jan Chalupa 2002-02-14 13:29:16 UTC
Hmm, what about adding a new inteface InputOutput2 (or better
FilteredInputOutput) and changing the current core implementation(s)
to support both InputOutput and InputOutput2?

Is this really such an obscure requirement? IMO, module writers might
find such API useful too.
Comment 17 akemr 2002-02-14 14:58:28 UTC
CCing Jarda because of requested API change in InputOutput
Comment 18 ivan 2002-02-15 04:25:28 UTC
Looking at Term.textWithin, it seems like an oversight to
have dropped the newlines. visitLines() should've been called
with newlines=true.

re InputOutput2 ... is there a precedent for evolving interfaces in
this manner? Just curious.
Comment 19 akemr 2002-02-15 08:52:47 UTC
I fixed missing newlines problem, so now you can use:

  term.textWithin( Coord.make(0,0), term.getCursorCoord() )

to get text.
Comment 20 Jaroslav Tulach 2002-02-15 09:47:45 UTC
This is a must have and needs to be fixed because QA complains about
it for long time. On the other hand, QA is the only known user of this
feature and we usually do not modify API until needed by more people -
even two sometimes are not enough.

But I think that there is a simple solution without change of API.
Ales, please override method toString () of the object that implements

Jiri, call inputOutput.toString () to get the selected text.

I would rather leave this undocumented because it is not clear what it
should return - in such case remove the API keyword. Otherwise try to
documented in the JavaDoc - Let me know when done I wonder how you
will describe the functionality ;-?
Comment 21 akemr 2002-02-15 16:09:05 UTC
Great idea! Using toString will be much better.
Comment 22 Jan Chalupa 2002-02-15 17:06:58 UTC
Hmm, I think that using an undocumented toString() implementation for
this is an ugly hack. If you really don't want to expose this
functionality in the API, we can probably live with the
term.textWithin() call. :-(

To Ivan:
> re InputOutput2 ... is there a precedent for evolving interfaces in
> this manner? Just curious.

1. In NetBeans - probably not.
2. In Java in general - I was educated once that binary compatibility
of abstract classes addresses such needs perfectly. Unfortunately,
here we are dealing with an interface.
3. In COM/DCOM - yes. COM interfaces are immutable. Adding a new
interface (usually inherited from the old one) and changing the
implementation to support both is a recommended way of interface
Comment 23 akemr 2002-02-18 08:53:58 UTC
I added toString() method to OutputTabTerm, returning text
content of output tab.

BTW - there is bug after calling textWithin() method - see #20626.
Also term.textWithin( Coord.make(0,0), term.getCursorCoord() )

OutputTabTerm.toString() doesn't use textWithin(), so I suggest
to use it.
Comment 24 Jiri Skrivanek 2002-02-27 13:49:14 UTC
OK. It works.
Comment 25 Quality Engineering 2008-12-23 08:07:43 UTC
moving terminal emulator issues to terminalemulator component.
To see the correct version and target milestone of this issue look at Issue
Activity table.
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