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Re[7]: GtkDialog Usage

I made follows changes:
1)don't call close_dialog from response_handler
2)gtk_widget_hide after gtk_run_dialog

and all start work fine.

On Sat, Dec 25, 2004 at 07:41:02PM -0800, Harring Figueiredo wrote:


 Jan:
  A couple of comments:

1)  you should use  g_signal_connect instead of gtk_signal_connect.
2)  you should use G_CALLBACK instead of GTK_SIGNAL_CONNECT
   The glib is now handling all the signal stuff.

No to the problem:

On the function:

void ShowDialog(GtkWidget *widget, gpointer data)

Remove this line:
   g_signal_connect(G_OBJECT(dialog), "response", 
 G_CALLBACK(response_handler), dialog);


 You are connecting the signal and you go to the .._run() loop and click the
close button, the gtk_main_loop is one deeper (I think) and never comes back.

 Try it out and let me know.

 Regards,
Harring.



--- jan jakon <janjakon mail ru> wrote:


Thanks for you help.

Simple code which demonstrate my problem.
$cat main.cpp


#include <gdk/gdk.h>

#include <gtk/gtk.h>
#include <cstdlib>
#include <cstring>

GtkWidget *dialog;

gint OnDelete(GtkWidget *widget, GdkEvent *event, gpointer data);
gint OnDestroy(GtkWidget *widget, GdkEvent *event, gpointer data);
void ShowDialog(GtkWidget *widget, gpointer data);

int main(int argc, char *argv[])
{
  gtk_init(&argc, &argv);
  GtkWidget *topLevelWindow=gtk_window_new(GTK_WINDOW_TOPLEVEL);
  

  gtk_signal_connect(GTK_OBJECT(topLevelWindow), "delete_event", 
                 GTK_SIGNAL_FUNC(OnDelete), NULL);
  gtk_signal_connect(GTK_OBJECT(topLevelWindow), "destroy", 
                 GTK_SIGNAL_FUNC(OnDestroy), NULL);
  gtk_container_set_border_width(GTK_CONTAINER(topLevelWindow), 20);
  GtkWidget *DialogButton=gtk_button_new_with_label("Dailog");
  gtk_signal_connect(GTK_OBJECT(DialogButton), "clicked",
GTK_SIGNAL_FUNC(ShowDialog), &dialog);
  gtk_container_add(GTK_CONTAINER(topLevelWindow), DialogButton);
  gtk_widget_show(DialogButton);
  gtk_widget_show(topLevelWindow);
  
  gtk_main();
  g_print("Done!\n");
  return EXIT_SUCCESS;
}

gint OnDelete(GtkWidget *widget, GdkEvent *event, gpointer data)
{
  return FALSE;
}

void close_dialog(void)
{
  if(dialog){
    g_print("Destroy dialog\n");
    gtk_widget_destroy(dialog);
    dialog=NULL;
  }
}

gint OnDestroy(GtkWidget *widget, GdkEvent *event, gpointer data)
{
  g_print("Shutting down\n");
  close_dialog();
  gtk_main_quit();
  return 0;
}

void response_handler(GtkDialog *dialog, gint res_id, GtkWidget *widget)
{
  close_dialog();
}

void ShowDialog(GtkWidget *widget, gpointer data)
{
  dialog=gtk_dialog_new();
  gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_CLOSE,
GTK_RESPONSE_CLOSE);
  gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);
  g_signal_connect(G_OBJECT(dialog), "response", 
G_CALLBACK(response_handler), dialog);
  gtk_dialog_run(GTK_DIALOG(dialog));
}

for any case my Makefile
$cat Makefile

CXX=g++
LDLIBS=`pkg-config --libs gtk+-2.0` `pkg-config --libs gconf-2.0`
CXXFLAGS=-Wall -g -O0 `pkg-config --cflags gtk+-2.0` `pkg-config --cflags
gconf-2.0`

.cpp.o:
        $(CXX) $(CXXFLAGS) -c -o$@ $<

gtk-example: main.o 
        $(CXX) $(LDLIBS) $^ -o $@

clean:
        rm -f -r *~ *.o gtk-example


-----Original Message-----
From: Harring Figueiredo <harringf yahoo com>
To: jan jakon <janjakon mail ru>
Date: Sat, 25 Dec 2004 14:08:15 -0800 (PST)
Subject: Re: Re[4]: GtkDialog Usage




Jan:
 
  We are probably missing something silly. If the code license does not
restrict you from sharing, please send me a copy so that I can run and

track it

down. Alternatively, you can send a small sample that replicates the

problem.


  Regards,

Harring.

--- jan jakon <janjakon mail ru> wrote:


It is very bad, but already have this code in "quit" handler.

I have close dialog function with such code:

  printf("close dialog\n");
  fflush(stdout);
  if(window){
    gtk_widget_destroy(window);
    window = NULL;
  }

I have response dialog function with suce  code:

 switch(res_id){
 case GTK_RESPONSE_HELP:
  //some code
 default:
  printf("close from response_handler\n");
  close_dialog_function();
  }
I have main_quit function with such code:
printf("main window close\n");
//some code
close_dialog_function();
//some code
gtk_main_quit();
I get such output:
close from response_handler
close dialog
close from response_handler
close dialog
close from response_handler
close dialog
main end is execute
close dialog

And application hang up.

-----Original Message-----
From: Harring Figueiredo <harringf yahoo com>
To: jan jakon <janjakon mail ru>
Date: Sat, 25 Dec 2004 10:07:51 -0800 (PST)
Subject: Re: Re[2]: GtkDialog Usage





 Jan:
 In that case, you still have to destroy the dialog when the main

"window"

is

being destroyed.

 callback_to_quit_app(){
  if(dialog)
     gtk_widget_destroy(dialog)
   destroy other widget like the dialog you mentioned.
   gtk_main_quit()
}

This should do it.

 Reg,

 Harring
   


 
--- jan jakon <janjakon mail ru> wrote:


The main idea: didn't create dialog each time, because it required

too

much

time,
create it once.

But in any way it didn't help.

I try this code:
#if 0
if(dialog){
  gint res=gtk_dialog_run(dialog);
  return res;
}
#endif

dialog = gtk_dialog_new();
//fill dialog with widgest

gint res=gtk_dialog_run(dilog);
gtk_widget_destroy(GTK_WINDOW(dialog));
dialog=NULL;
return res;

But it DIDN'T solve the problem.

-----Original Message-----
From: Harring Figueiredo <harringf yahoo com>
To: jan jakon <janjakon mail ru>
Date: Sat, 25 Dec 2004 07:34:30 -0800 (PST)
Subject: Re: GtkDialog Usage




--- jan jakon <janjakon mail ru> wrote:


Hello. 
I have problem with GtkDialog.

In my application there is main window, on main window there is

button

wich

activate 
the follow code:
if(dialog){
  gint res=gtk_dialog_run(GTK_DIALOG(window));
  return res;
}

dialog = gtk_dialog_new();
//fill dialog with widgest

gint res=gtk_dialog_run(GTK_DIALOG(window));
return res;

If I didn't click on button which show dialog all right.
But if I click, then after close main window program still alive,
and only Ctrl+C help to close it.




   You are not destroying the dialog.
   try  gtk_widget_destroy(dialog); 

  once you are done with it.

Harring

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=====
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