New feature: a GUI proxy for BaCon

[vovchik]

Dear Alex,

OMG! I hope Joe and Rik chime it. They are using radio on PI. Sorry, but they all work fine on my Pi4.

With kind regards,
vovchik

[bigbass]

Hello Alex and vovchik

I just tested the RPI version of the radios
all is fine they all compile and run correctly


I suspect you are missing some support files
if you already built from fossil then these
should get things going


sudo apt-get install libxmu-dev

sudo apt-get install xfonts-100dpi xfonts-75dpi


Joe

[alexfish]

hi Joe

Installed fonts OK

libxmu-dev is already the newest version.

assuming there must be a other version out there. problem here is I downloaded
xaw radio again from

basic-converter.org/radio-xaw.bac

and now get this.

/usr/include/X11/Xaw3d/AllWidgets.h:34:8: error: unknown type name 'XmuWidgetNode'

can remember doing some bits RE terminal sixel. and tried updating some bits>> think there where not indicative
To RPI , so now trying to clean GTK3

I am assuming Peter is using GTK3 , he is bemoaning gtkGL , well it will not be to long be for that goes to
Vulcan .. for me gtk3/4 is a Dead Duck

BR
Alex

[alexfish]

Hi All

Reinstalled GTK3

Still no smoke , Peter's and Vovchik's versions not compiling, Err messages are the same

think here Possible 'Version 'is the bit I be looking at as in number

Mine is
3.14.5-1+deb8u1rpi1rpi1g


BR
Alex

[alexfish]

Back to original demo xaw

Joes version works on PI


OPTION GUI TRUE
PRAGMA GUI  

PRAGMA LDFLAGS Xaw3d
PRAGMA LDFLAGS Xmu  

id = GUIDEFINE( "{ type=window name=window resources=\"*text.AsciiSink.foreground:blue\",\"*text.AsciiSink.font:lucidasans-italic-18\" XtNtitle=\"This is a BaCon app\" XtNwidth=500 XtNheight=300 } \
       { type=formWidgetClass name=form parent=window } \
       { type=menuButtonWidgetClass name=menuButton parent=form XtNwidth=70 XtNlabel=\"File\" XtNshapeStyle=XmuShapeRoundedRectangle XtNleft=XawChainLeft XtNright=XawChainLeft XtNtop=XawChainTop XtNbottom=XawChainTop } \
       { type=simpleMenuWidgetClass name=menu parent=menuButton } \
       { type=smeBSBObjectClass name=item1 parent=menu callback=XtNcallback XtNlabel=\"Open\" } \
       { type=smeBSBObjectClass name=item2 parent=menu callback=XtNcallback XtNlabel=\"Close\" } \
       { type=smeLineObjectClass name=line1 parent=menu } \
       { type=smeBSBObjectClass name=item3 parent=menu callback=XtNcallback XtNlabel=\"Exit\" } \
       { type=asciiTextWidgetClass name=text parent=form XtNfromVert=menuButton XtNeditType=XawtextEdit XtNwidth=500 XtNheight=200 XtNscrollVertical=XawtextScrollWhenNeeded XtNwrap=XawtextWrapWord XtNleft=XawChainLeft XtNright=XawChainRight XtNtop=XawChainTop XtNbottom=XawChainBottom } \
       { type=commandWidgetClass name=button parent=form callback=XtNcallback XtNfromVert=text XtNfromHoriz=NULL XtNwidth=120 XtNheight=40 XtNlabel=\"Click me\" XtNleft=XawChainLeft XtNright=XawChainLeft XtNtop=XawChainBottom XtNbottom=XawChainBottom } \
       { type=commandWidgetClass name=exit_b parent=form callback=XtNcallback XtNfromVert=text XtNfromHoriz=button XtNhorizDistance=260 XtNwidth=120 XtNheight=40 XtNlabel=\"Exit\" XtNleft=XawChainRight XtNright=XawChainRight XtNtop=XawChainBottom XtNbottom=XawChainBottom } " )

LOCAL txt$

CALL GUISET(id, "text", XtVaTypedArg, XtNbackground, XtRString, "yellow", 7)
CALL GUISET(id, "text", XtNstring, "Hello world")

CALL GUISET(id, "button", XtVaTypedArg, XtNbackground, XtRString, "green", 6)
CALL GUISET(id, "button", XtVaTypedArg, XtNforeground, XtRString, "yellow", 7)

WHILE TRUE
   event$ = GUIEVENT$(id)
   SELECT event$
       CASE "button"
           CALL GUIGET(id, "text", XtNstring, &txt$)
           PRINT "Did you type: '", txt$, "'?"
       CASE "item1"
           PRINT "Open a file!"
       CASE "item2"
           PRINT "Close a file!"
       CASE "exit_b", "item3"
           END
   ENDSELECT
WEND

Now looking further at the header bits

BR
Alex

And OOps , exiting the gui and My 'Desktop' has Vanished again, now need to switch the pi off
and reboot .

[alexfish]

though it may have been launching the app through xterm

that is not the case,

try again
launch

the Mouse cursor freezes for about 3 seconds , the Desktop starts to flicker , then the gui start to shows

then the Desktop vanishes.. Wow.

BR
Alex

[Pjot]

Jun 2, 2020 11:22:52 GMT 1 alexfish said:

Peter's and Vovchik's versions not compiling

Hi Alex,

We already know that Debian based distributions (Mint, RPI) use a very old version of the Xaw3d library (see my post here), so you have to delete the following line from the radio-xaw.bac program, at the top:

PRAGMA GUI Xaw3d


If you delete this line then the radio program will compile for Xaw only. This also will take care of the 'XmuWidgetNode' error. It really should work on your system because Xaw is part of X11 and maintained on every server using X11.

For the other problems, the GTK version uses functions available in GTK 3.22 (like gtk_menu_popup_at_pointer) so please make sure your system his this version or newer.

HTH
Peter

[Pjot]

Gents,

For fun, I have ported my OpenGL fractal program to the new set of GUI commands.

I am using the GtkDrawingArea widget together with the Cairo API to create my picture.

What I like about this program is how few lines of code we need to setup a GUI, so we can focus on the important part (drawing the fractal)

BR

Peter

OPTION GUI TRUE
PRAGMA GUI gtk3

' Some fractal related values
CONST XSize = 400
CONST YSize = 400
CONST MaxIters = 60
CONST Left = -2.0
CONST Right = 0.5
CONST Top = 1.0
CONST Bottom = -1.0

id = GUIDEFINE(" \
   { type=WINDOW name=window callback=delete-event title=\"DrawingArea demo\" } \
   { type=BOX name=box parent=window orientation=GTK_ORIENTATION_VERTICAL } \
   { type=DRAWING_AREA name=drawing parent=box callback=draw,draw width-request=XSize height-request=YSize } \
   { type=BUTTON_BOX name=bbox parent=box layout-style=GTK_BUTTONBOX_END } \
   { type=BUTTON name=button parent=bbox callback=clicked label=\"Exit\" }")

WHILE TRUE
   event$ = GUIEVENT$(id)
   SELECT event$
       CASE "window"
           BREAK
       CASE "button"
           BREAK
       CASE "draw"
           CALL Draw
   ENDSELECT
WEND

SUB Draw

   LOCAL context TYPE GdkDrawingContext*
   LOCAL cr TYPE cairo_t*
   LOCAL gdk TYPE GdkWindow*
   LOCAL x, y, count, idx
   LOCAL zr, zi, crr, ci, rsquared, isquared TYPE FLOATING

   CALL GUIGET(id, "drawing", "window", &gdk)

   ' Setup drawing context
   context = gdk_window_begin_draw_frame(gdk, gdk_window_get_clip_region(gdk))

   ' Get cairo context
   cr = gdk_drawing_context_get_cairo_context(context)

   ' Fractal calculation
   FOR y = 0 TO YSize
       FOR x = 0 TO XSize
           zr = 0.0 : zi = 0.0
           crr = Left + x * (Right - Left) / XSize
           ci = Top + y * (Bottom - Top) / YSize
           rsquared = zr * zr
           isquared = zi * zi
           FOR count = 0 TO MaxIters
               zi = zr * zi * 2
               zi = zi + ci
               zr = rsquared - isquared
               zr = zr + crr
               rsquared = zr * zr
               isquared = zi * zi
           NEXT
           IF rsquared + isquared <= 4.0 THEN
               idx = INT((rsquared + isquared)*4)
               CALL cairo_set_source_rgb(cr, MOD(idx*32, 256)/256.0, MOD(idx*64, 256)/256.0, MOD(idx*96, 256)/256.0)
               CALL cairo_rectangle(cr, x, y, 1, 1)
               CALL cairo_fill(cr)
           END IF
       NEXT
   NEXT

   ' Finish drawing
   CALL gdk_window_end_draw_frame(gdk, context)

ENDSUB


Attachments:

[vovchik]

Dear Peter,

Great work! Works fine on My Mint and Pi4. For Pi4, I added:

PRAGMA OPTIONS -Wno-deprecated-declarations
PRAGMA OPTIONS -Wno-write-strings -Wno-deprecated

Wih kind regards,
vovchik

[alexfish]

Hi Peter

got the gui up ,Desk top OK, but now back to the fonts issue
Warning: Missing charsets in String to FontSet conversion

they are on rpi. but any idea where the need to be for Xaw

I am going to opt out of the GTK3 bits.

BR
Alex

[bigbass]

Hello Alex most of the problems with fonts were solved here


basic-converter.proboards.com/post/12962/thread


and I tested on the RPI3 to be working
except for a few that needed some pragma changes
that are in that same thread (and the reasons why)

from Peter Apr 23, 2020 at 6:37am down
walk through the demos starting there and they should work
I had the same problems

Joe

[bigbass]

Hello Peter

working on the RPI3 as is with no changes!




this shows that the RPI can handle the
drawing the cpu jumped up to 28% max about 2 seconds then settled down
quickly that's pretty good even when running on a credit card sized computer

Joe

[alexfish]

Hi All

No smoking cigar as yet Re Xaw , the text widget works but label and buttons prove a problem
+ the DE keeps Vanishing , looks like it be a Conflict there. thinks first step will be to resolve this first.

however :: browsing xaw raspberry pi revealed xaw-madness rpi on Reddit,

[reddit url="https://www.reddit.com/r/unixporn/comments/fl8ngz/vtwm_xaw_madness_on_rapsberry_pi3/"]
so looking further

BR
Alex

[bigbass]

Hello Alex
since I am using the RPI3 also and tried all of the demos posted
this is an investigation of what was installed

you still may be missing support files (dependencies)

here they are listed when they were installed and the version numbers
make sure you at least installed these

Note:We are using different versions and have different packages already installed
but this should still be a
better guide of what packages were needed


gtk3 is another monster but that is working well (casting on 32 bit has always been a problem
but it has gotten much better over the years) And Peter has improved the bacon code for us
when we report the errors


Joe


2020-04-23    xfonts-75dpi                             1:1.0.4+nmu1
2020-04-23    xfonts-base                              1:1.0.5

2020-04-22    libmotif-dev                             2.3.8-2
2020-04-22    uil                                      2.3.8-2
2020-04-22    libuil4                                  2.3.8-2
2020-04-22    libmrm4                                  2.3.8-2
2020-04-22    libxm4                                   2.3.8-2
2020-04-22    libmotif-common                          2.3.8-2
2020-04-19    libxaw3dxft8-dev                         1.6.2e-2
2020-04-19    libxaw3dxft8                             1.6.2e-2


2020-04-18    xaw3dg-dev                               1.5+E-18.3
2020-04-18    xutils-dev                               1:7.7+5
2020-04-18    xaw3dg                                   1.5+E-18.3
2020-04-18    libxaw7-dev                              2:1.0.13-1+b2
2020-04-18    libxpm-dev                               1:3.5.12-1
2020-04-18    libxaw-doc                               2:1.0.13-1
2020-04-18    libxmu-dev                               2:1.1.2-2+b3
2020-04-18    libxmuu-dev                              2:1.1.2-2+b3
2020-04-18    libxmu-headers                           2:1.1.2-2

[alexfish]

Hi Joe

have got as far as getting dict to work, radio not sure of as yet , since the DE disappeared again and did a reboot / switch off pi

prior to that only just notice something of xauth and x files needed updating:: did that ?

anyway the DE disappeared on the Dict :::

So now sure that this be a RPI3 os issue . I say as in 'I think'

time for time out .. and some deep thinking

BR
Alex