[solved]Can't compile Unicode using g_signal_connect_()?

idle · **Posted:** Wed Jan 11, 2012 8:23 pm

I can't find a work around to compile in unicode mode using g_signal_connect
it's a macro and should accept UTF8 encoding but how to do it?

compile in unicode it doesn't work!

Code:

ImportC "-gtk"
EndImport

ProcedureC onSize(*widget.GtkWidget,*event.GtkAllocation)
  Debug *event\x
  Debug *event\y
  ProcedureReturn 1
EndProcedure  

OpenWindow(1,0,0,200,100,"g_signalConnect")
ButtonGadget(0,5,5,60,20,"OK")
g_signal_connect_(GadgetID(0),"size-allocate",@onSize(),0)

Repeat 
Until WaitWindowEvent() = #PB_Event_CloseWindow 

Edit this works
Scroll the mouse wheel over the button!

Code:

ImportC "-gtk"
  g_signal_connect(instance,signal.p-ascii,*fn,*vdata,destroy=0,flags=0) As "g_signal_connect_data"
EndImport

ProcedureC onScroll(*widget.GtkWidget,*event.GdkEventScroll,pbID)
  Debug *event\direction 
  Debug pbid 
  ProcedureReturn 1
EndProcedure 

OpenWindow(1,0,0,200,100,"g_signalConnect")
ButtonGadget(2,5,5,60,20,"OK")
ButtonGadget(3,5,30,60,20,"OK TOO")
g_signal_connect(GadgetID(2),"scroll-event",@onScroll(),2)
g_signal_connect(GadgetID(3),"scroll-event",@onScroll(),3)

Repeat
  Ev = WaitWindowEvent()
  evg = EventGadget()
  If Ev
    If  evg = 2 
      Debug EventType()
    EndIf
  EndIf
Until Ev = #PB_Event_CloseWindow 

Guimauve · **Posted:** Wed Jan 11, 2012 8:38 pm

Hello,

I'm just about to suggest this workaround :

Code:

ImportC "-gtk"
EndImport

ProcedureC onSize(*widget.GtkWidget,*event.GtkAllocation)
   Debug *event\x
   Debug *event\y
   ProcedureReturn 1
EndProcedure  

Procedure GLIB_signal_connect(instance, detailed_signal.s, c_handler, Data_)
  
  *Source.Character = @detailed_signal
  g_signal_connect_(instance, PeekS(*Source, Len(detailed_signal), #PB_UTF8), c_handler, Data_)
  
EndProcedure

OpenWindow(1,0,0,200,100,"g_signalConnect")
ButtonGadget(0,5,5,100,30,"OK")

GLIB_signal_connect(GadgetID(0), "size-allocate",@onSize(),0)

; g_signal_connect_(GadgetID(0),"size-allocate",@onSize(),0)

Repeat 
Until WaitWindowEvent() = #PB_Event_CloseWindow

But the code still generate this warning message :

Quote:

GLib-GObject (Warning): /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:2295: signal 's' is invalid for instance '0xd8d830'

Best regards.
Guimauve

idle · **Posted:** Wed Jan 11, 2012 9:29 pm

The macro maps to g_signal_connect_data
this appears to work but it's not right!

Code:

ImportC "-gtk"
  g_signal_connect_data(instance,*signal,*fn,*vdata,destroy,flags)
EndImport

Prototype gsignal_connect(*widget,signal.p-utf8,*fn,*vdata,destroy=0)
Global gsignal_connect.gsignal_connect = @g_signal_connect_data()

ProcedureC onScroll(*widget.GtkWidget,*event.GdkEventScroll)
  Debug *event\direction
   ProcedureReturn 1
EndProcedure  

OpenWindow(1,0,0,200,100,"g_signalConnect")
ButtonGadget(2,5,5,60,20,"OK")

gsignal_connect(GadgetID(2),"scroll-event",@onScroll(),0)

Repeat 
  Ev = WaitWindowEvent() 
  evg = EventGadget()
  If Ev 
    If  evg = 2  
      Debug EventType()
    EndIf
  EndIf 
Until Ev = #PB_Event_CloseWindow 

Guimauve · **Posted:** Wed Jan 11, 2012 10:23 pm

It's probably because some signal should be added to the gadget. Also, special PB EventType are for specific gadget only and this can be an issue.

Best regards.
Guimauve

idle · **Posted:** Wed Jan 11, 2012 10:43 pm

Got it a fix

Code:

ImportC "-gtk"
  g_signal_connect(instance,signal.p-ascii,*fn,*vdata,destroy=0,flags=0) As "g_signal_connect_data"
EndImport

ProcedureC onScroll(*widget.GtkWidget,*event.GdkEventScroll,pbID)
  Debug *event\direction 
  Debug pbid 
  ProcedureReturn 1
EndProcedure 

OpenWindow(1,0,0,200,100,"g_signalConnect")
ButtonGadget(2,5,5,60,20,"OK")
ButtonGadget(3,5,30,60,20,"OK TOO")
g_signal_connect(GadgetID(2),"scroll-event",@onScroll(),2)
g_signal_connect(GadgetID(3),"scroll-event",@onScroll(),3)

Repeat
  Ev = WaitWindowEvent()
  evg = EventGadget()
  If Ev
    If  evg = 2 
      Debug EventType()
    EndIf
  EndIf
Until Ev = #PB_Event_CloseWindow  

you can add any signal to a gadget you want since they're inherited from gtkwidget
http://developer.gnome.org/gtk/2.24/Gtk ... et.signals

Guimauve · **Posted:** Wed Jan 11, 2012 11:49 pm

idle wrote:

you can add any signal to a gadget you want since they're inherited from gtkwidget
http://developer.gnome.org/gtk/2.24/Gtk ... et.signals

Possible but what happen when we add signals and function to a Gadget when this gadget already have the added signals with different function attached ? They will be all executed or they will interfere each other ?
Thanks for the link.

Best regards.
Guimauve

idle · **Posted:** Thu Jan 12, 2012 5:34 pm

I don't know but I expect It'll just add it to the hook chain.

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[solved]Can't compile Unicode using g_signal_connect_()?

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