Re: How to get key information from qt terminal to gnuplot

[sfeam <sf...@us...>]

On Sunday, 22 June 2014 05:36:20 PM Tatsuro MATSUOKA wrote:
> Hello
> 
> http://gnuplot.10905.n7.nabble.com/Spacebar-does-not-raise-command-window-with-wxt-terminal-td18540.html
> 
> 
> For qt terminal, this feature seems not to be implemented. (Right?)
> Although I do not have enough knowledge, I tried to implement it.
> I looked into qt_term.cpp and QtGnuplotScene.cpp.
> 
> In QtGnuplotScene.cpp, qt terminal seems to return key information in 
> 
> void QtGnuplotScene::keyPressEvent(QKeyEvent* event)
> <snip>
> live = m_eventHandler->postTermEvent(GE_keypress,
> int(m_lastMousePos.x()), int(m_lastMousePos.y()), key, 0, m_widget);
> 
> While in qt_term.cpp,
> 
> /*-------------------------------------------------------
>  * Communication terminal -> gnuplot
>  *-------------------------------------------------------*/
> 
> bool qt_processTermEvent(gp_event_t* event)
> <snip>
> if ((event->type == GE_keypress) && (paused_for_mouse & PAUSE_KEYSTROKE) && (event->par1 > '\0'))
> 
> 
> However,
> 'struct gp_event_t' has no member named 'key'
> 
> 
> How I do get key information from qt terminal to gnuplot?

The simplest way is
gnuplot>  bind "<key>" "command to execute"

No code change to the qt terminal is needed. However there is not
currently a "command to execute" that raises the console window.
The "raise" command acts on the plot window, not the console window.

Why does the "raise console" function use different code for each
terminal type?  The console is the same no matter what terminal is
in use.  Am I missing something?  

My current thinking is that the special code to raise the console
should be removed from all terminals.
Instead we could add a routine in mouse.c that responds to the
keystroke after it is passed to the gnuplot core.  This would be
shared by all terminals.  

	Ethan