Re: Font selection panel as part of notebook

[Igor Korot <ikorot01 gmail com>]

Eric,

On Sun, Sep 24, 2017 at 1:51 AM, Igor Korot <ikorot01 gmail com> wrote:
> Eric,
>
> On Sun, Sep 24, 2017 at 12:33 AM,  <cecashon aol com> wrote:
> > When I test it out it looks like the font selection widget doesn't work very
> > well in GTK3.
> >
> > Not quite sure how you have it setup for GTK2 and what information you are
> > using to activate the apply button. The GValue that I get returned is a
> > PangoFcFamily*. I don't think this will help unless you pull in private data
> > from Pango. You don't like "The quick brown fox..."?
>
> This is what I see on the Terminal:
>
> igor@IgorDellGentoo ~ $ ./fontsel
> Cursor Changed
> 43
> ((PangoFcFamily*) 0xba5a40)
> Cursor Changed
> 43
> ((PangoFcFamily*) 0xba5a40)
> Cursor Changed
> 43
> ((PangoFcFamily*) 0xba5a40)
> Cursor Changed
> 43
> ((PangoFcFamily*) 0xba5a40)
> Cursor Changed
> 44
> ((PangoFcFamily*) 0xba5a80)
>
> It initially selects "Sans" and then I select "Serif".
>
> I'm testing with GTK+2.24 on Gentoo Linux.

I was calling "g_value_get_string( &value )" and this function failed.
That's why I did see
an empty string.

I didn't look at the GTK+ sources but it looks like the value
retrieved is just an address
of the string and not the string itself.

I do have a workaround. I didn't test it yet, but I'd prefer to get
this info this way.

Is there anything else?

Thank you.

> Thank you.
>
> > Eric
> >
> > /*
> >    gcc -Wall font_selection1.c -o font_selection1 `pkg-config --cflags
> > --libs gtk+-3.0`
> >    gcc -Wall font_selection1.c -o font_selection1 `pkg-config --cflags
> > --libs gtk+-2.0`
> >    Tested with GTK3.18 on Ubuntu16.04
> > */
> >
> > #include<gtk/gtk.h>
> >
> > static void font_name_change(GtkTreeView *view, gpointer user_data)
> >   {
> >     g_print("Cursor Changed\n");
> >     GtkTreeIter iter;
> >     GValue value=G_VALUE_INIT;
> >     GList *selRows = NULL;
> >     GtkTreeSelection *sel = gtk_tree_view_get_selection( view );
> >     GtkTreeModel *model = gtk_tree_view_get_model( view );
> >     selRows = gtk_tree_selection_get_selected_rows( sel, &model );
> >     if(selRows!=NULL)
> >       {
> >         gchar *string1=gtk_tree_path_to_string((GtkTreePath
> > *)selRows[0].data);
> >         g_print("%s\n", string1);
> >         g_free(string1);
> >         if(gtk_tree_model_get_iter( model, &iter, (GtkTreePath
> > *)selRows[0].data ))
> >           {
> >             gtk_tree_model_get_value( model, &iter, 0, &value );
> >             gchar *string2=g_strdup_value_contents(&value);
> >             g_print("%s\n", string2);
> >             g_free(string2);
> >           }
> >         else
> >           {
> >             g_print("Need a valid iter.\n");
> >           }
> >       }
> >    else
> >       {
> >         g_print("No list.\n");
> >       }
> >
> >    g_list_free_full(selRows, (GDestroyNotify) gtk_tree_path_free);
> >
> >   }
> > int main(int argc, char *argv[])
> >   {
> >     gtk_init (&argc, &argv);
> >
> >     GtkWidget *window=gtk_window_new (GTK_WINDOW_TOPLEVEL);
> >     gtk_window_set_title(GTK_WINDOW(window), "Font Selecton");
> >     gtk_window_set_default_size(GTK_WINDOW(window), 400, 400);
> >     gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
> >     g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
> >
> >     G_GNUC_BEGIN_IGNORE_DEPRECATIONS
> >     GtkWidget *m_fontPanel=gtk_font_selection_new();
> >     GtkWidget *names = gtk_font_selection_get_family_list((GtkFontSelection
> > *) m_fontPanel );
> >     //For GTK3.
> >     gtk_tree_view_set_activate_on_single_click(GTK_TREE_VIEW(names), TRUE);
> >     //GtkWidget *sizes = gtk_font_selection_get_size_entry((GtkFontSelection
> > *) m_fontPanel );
> >     g_signal_connect( names, "cursor-changed", G_CALLBACK(font_name_change),
> > NULL );
> >     G_GNUC_END_IGNORE_DEPRECATIONS
> >
> >     gtk_container_add(GTK_CONTAINER(window), m_fontPanel);
> >
> >     gtk_widget_show_all(window);
> >
> >     gtk_main();
> >
> >     return 0;
> >   }