gtkcolorbutton GtkColorSelection gtk_window_set_transient_for () seems incorrect

[twobob]

As I understand it:

I invoke a https://developer.gnome.org/gtk2/2.2...lorButton.html GtkColorButton

clicking this creates for me a GtkColorSelection dialog

Which automatically sets the gtk_window_set_transient_for () as the parent that invoked the dialog.

this works great when there is only ONE window in the mix.


But...

invoke two windows:

one from the other... then put the button on the second page... and the gtk_window_set_transient_for () will always put the dialog BEHIND the second window...


test.c

#include <gtk/gtk.h>

static gboolean delete_event( GtkWidget *widget,
                              GdkEvent  *event,
                              gpointer   data )
{   g_print ("delete event occurred\n");
    return TRUE;
}

/* Another callback */
static void destroy( GtkWidget *widget,
                     gpointer   data )
{
    gtk_main_quit ();
}

/* return us a window */

GtkWidget* create_simple_window (GtkWidget *thewindow)
{
	GtkWidget *window;

	window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

	gtk_window_set_title(GTK_WINDOW(window), "L:A_N:application_ID:twobob.second.layer_PC:N");

	gtk_window_set_position (GTK_WINDOW (window), GTK_WIN_POS_CENTER_ON_PARENT);
	gtk_window_set_modal (GTK_WINDOW (window), TRUE);
	gtk_window_set_transient_for (GTK_WINDOW (window), GTK_WINDOW (thewindow));

	return window;
}


int main( int   argc,
          char *argv[] )
{

    GtkWidget *window;
           GtkWidget *window2;
            GtkWidget *button;

    gtk_init (&argc, &argv);
    
    /* create a new window on the application layer */
    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

	gtk_window_set_title (GTK_WINDOW (window), "L:A_N:application_ID:twobob.osmo_PC:N");

    g_signal_connect (window, "delete-event",
		      G_CALLBACK (delete_event), NULL);

    g_signal_connect (window, "destroy",
		      G_CALLBACK (destroy), NULL);
    
    /* Sets the border width of the window. */
    gtk_container_set_border_width (GTK_CONTAINER (window), 10);
    
    button = gtk_color_button_new();
    gtk_color_button_set_title(GTK_COLOR_BUTTON(button), "L:D_ID:twobob.color");

  /* create a new window  ALSO on the application layer */
    window2 = create_simple_window(window);

    gtk_container_add (GTK_CONTAINER (window2), button);

    gtk_widget_show (window);

    gtk_widget_show (button);
    
    /* and the second window - WITH THE BUTTON */
   gtk_widget_show (window2);

    gtk_main ();
    
    return 0;
}

press the button? nothing appears.
(well it does but on the wrong layer)

swap
gtk_container_add (GTK_CONTAINER (window2), button);

for
gtk_container_add (GTK_CONTAINER (window), button);


and elide
gtk_widget_show (window2);

like
// gtk_widget_show (window2);


and it all works as expected...

so... am I going to have to derive a widget from GtkColorSelection ???

or is this as a result of using the awesome layers????

Any clues?

I was trying to port "osmo" but this has me stumped.
and short of rewriting the entire "PREFERENCES" gtknotebook layout... I am out of ideas.

Hence the simple to test "THIS DONT WORK" example I have made here...

[twobob]

can be compiled like

gcc test.c -o test `pkg-config --cflags --libs gtk+-2.0 `

[twobob]

I'll test it in a Xephyr...

EDIT: ANNNNNNNNNOYING.... of course it works perfectly in a xephyr. Sigh...

[baf]

Try setting new window on dialog layer. Then it should open in front of main window.

gtk_window_set_title (GTK_WINDOW (window2), "L:D_N:application_ID:twobob.osmo_PC:N");

[twobob]

err.. okay.

will do! Thanks - trying this right now!

[twobob]

Originally Posted by baf

Try setting new window on dialog layer. Then it should open in front of main window.

gtk_window_set_title (GTK_WINDOW (window2), "L:D_N:application_ID:twobob.osmo_PC:N");

hmm...

So.. The colorChooser will open in front of the new window?

not seeing this...

[twobob]

GtkWidget* create_simple_window (GtkWidget *thewindow)
{
	GtkWidget *window;

	window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
	gtk_window_set_title(GTK_WINDOW(thewindow), "L:D_N:application_ID:twobob.layer2");

.... BLAH


}

actually shows nothing at all?
not even the window...

sigh.

[baf]

Originally Posted by twobob

GtkWidget* create_simple_window (GtkWidget *thewindow)
{
	GtkWidget *window;

	window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
	gtk_window_set_title(GTK_WINDOW(thewindow), "L:D_N:application_ID:twobob.layer2");

.... BLAH


}

actually shows nothing at all?
not even the window...

sigh.

That was just a wild guess. Kindle awesome layers are tricky.
But I meant window here. Is it a typo?

[twobob]

hmm. checking.

EDIT: Neither way works.

This is a problem for porting apps... Sigh. this effectively means we can't invoke any dialogs on secondary level windows.

Huge hit on the "likely apps to work" list...

[twobob]

edit... hmm or does it?

    /* create a new window */
    window2 = gtk_window_new (GTK_WINDOW_TOPLEVEL);
	gtk_window_set_title (GTK_WINDOW (window2), "L:D_N:application_ID:twobob.osmo_PC:N");
  	gtk_window_set_default_size (GTK_WINDOW (window2), 800, 600);
	gtk_window_set_position (GTK_WINDOW (window2), GTK_WIN_POS_CENTER_ON_PARENT);

actually does work...

Have to look at that function again and completely rethink the port of osmo then...
if it works... This could be very helpful...

Thanks baf. will dig harder.

[twobob]

okay. got it.

Foolishly the method was being called and seemingly setting
gtk_window_set_transient_for (GTK_WINDOW (window), GTK_WINDOW (appGUI->main_window));
does something odd when dealing with a dialog layer window.

simply removing this (duh?) and using the D layer (as you so wisely suggested) has indeed got me back the pop overs when using the D layer for them...

YAY. Time to go hack.
Superstar baf.

as ever.