Re: terminals_with_size

[Tatsuro MATSUOKA]

> From: Rik 
> To: Tatsuro MATSUOKA ; John W. Eaton ; Mike Miller 
> Cc: Octave-Maintainers 
> Date: 2016/9/15, Thu 10:00
> Subject: Re: terminals_with_size
> 
> On 09/14/2016 05:44 PM, Tatsuro MATSUOKA wrote:
>>  ----- Original Message -----
>> 
>>>  From: Rik 
>>>  To: John W. Eaton ; Mike Miller 
>>>  Cc: Octave-Maintainers 
>>>  Date: 2016/9/15, Thu 05:20
>>>  Subject: Re: Minimum gnuplot version for Octave 4.2?
>>> 
>>>  On 09/14/2016 11:16 AM, John W. Eaton wrote:
>>>>   On 09/14/2016 01:26 PM, Mike Miller wrote:
>>>>>   On Wed, Sep 14, 2016 at 09:52:14 -0700, Rik wrote:
>>>>>>   Is there any objection to requiring a minimum gnuplot 
> version of 
>>>  4.4 for
>>>>>>   the next release?  The release date was March 2010, or 6.5 
> years 
>>>  ago.  The
>>>>>>   4.2 series had a release date of April 2007, but I 
> don't think 
>>>  anyone has
>>>>>>   tried to use Octave with gnuplot 4.2.X and I'm not 
> really sure 
>>>  it would
>>>>>>   work anymore.  In our own README.gnuplot we say, 
> "Octave works 
>>>  best with
>>>>>>   gnuplot 4.4 or higher, which is available from 
>>>  http://www.gnuplot.info.";
>>>>>>   I happened to notice in the documentation for image() that 
> we still 
>>>  have
>>>>>>   "*Warning:* X and Y are ignored when using gnuplot 
> 4.0 or 
>>>  earlier." which
>>>>>>   is horrendously out of date.
>>>>>   None here.
>>>>> 
>>>>>   RHEL/CentOS 5 has gnuplot 4.0 and RHEL/CentOS 6 has gnuplot 
> 4.2. All
>>>>>   other current supported versions of distros that I know of 
> have 4.4 or
>>>>>   later. I think it's safe to drop checks and warnings 
> messages for 
>>>  any
>>>>>   version lower than 4.4. Gnuplot should be very easy to build 
> on older
>>>>>   GNU or UNIX distros that may need a newer version.
>>>>   It's OK with me as well.
>>>> 
>>>>   jwe
>>>> 
>>>  Okay, done in this cset
>>>  (http://hg.savannah.gnu.org/hgweb/octave/rev/a666e3ee6af8).
>>> 
>>>  --Rik
>> 
>>  In the above changeset.
>> 
>>  --- a/scripts/plot/util/__gnuplot_drawnow__.m
>>  +++ b/scripts/plot/util/__gnuplot_drawnow__.m
>>  @@ -193,16 +193,8 @@
>>                                    "epscairo", 
> "epslatex", "fig", "gif", ...
>>                                    "jpeg", "latex", 
> "pbm", "pdf", "pdfcairo", ...
>>                                    "postscript", "png", 
> "pngcairo", "pstex", ...
>>  -                                 "pslatex", "svg", 
> "tikz"};
>>  -          if (__gnuplot_has_feature__ 
> ("windows_figure_position"))
>>  -            terminals_with_size{end+1} = "windows";
>>  -          endif
>>  -          if (__gnuplot_has_feature__ ("x11_figure_position"))
>>  -            terminals_with_size{end+1} = "x11";
>>  -          endif
>>  -          if (__gnuplot_has_feature__ ("wxt_figure_size"))
>>  -            terminals_with_size{end+1} = "wxt";
>>  -          endif
>>  +                                 "pslatex", "svg", 
> "tikz", "windows", ...
>>  +                                 "wxt", "x11"};
>>   
>> 
>>  Attached code
>>          if (all (gnuplot_size > 0))
>>            terminals_with_size = {"canvas", 
> "cairolatex", "eepic", "emf", ...
>>                                   "epscairo", 
> "epslatex", "fig", "gif", ...
>>                                   "jpeg", "latex", 
> "pbm", "pdf", "pdfcairo", ...
>>                                   "postscript", "png", 
> "pngcairo", "pstex", ...
>>                                   "pslatex", "svg", 
> "tikz", "windows", ...
>>                                   "wxt", "x11"};
>> 
>> 
>> 
>> 
>>  I do not see "qt". 
>> 
>>  The qt terminal is implemented from gnuplot 4.6 and default terminal from 
> gnuplot 5.0.
> 
> Is qt a terminal_with_size?  I don't know.  Someone who understands gnuplot
> and Octave can chime in on whether it should be added to the list.
> 
> --Rik



From the gnuplot help

************************
The qt terminal device generates output in a separate window with the Qt 
library. Syntax: 

        set term qt {<n>}
                    {size <width>,<height>}
                    {position <x>,<y>}
                    {title "title"}
                    {font <font>} {{no}enhanced}
                    {dashlength <dl>}
                    {{no}persist} {{no}raise} {{no}ctrl}
                    {close}
                    {widget <id>}
************************

> Is qt a terminal_with_size? 

Yes, it is.

The qt terminal is a cross platform interactive terminal like wxt terminal
Since the wxt terminal is categorized as terminals_with_size,
the qt terminal should be also categorized as terminals_with_size,

Tatsuro