grt_list.c

#include "grt_list.h"

void grt_list_init(grt_ref *grt)
{
    GtkLabel *label = (GtkLabel *)gtk_label_new( "Regular expressions" );
    GtkTreeViewColumn *col = (GtkTreeViewColumn *)gtk_builder_get_object(grt->builder, "column1");

    gtk_widget_set_margin_start( (GtkWidget *)label, 10 );
    gtk_widget_set_margin_top( (GtkWidget *)label, 10 );
    gtk_widget_set_margin_bottom( (GtkWidget *)label, 10 );
    gtk_tree_view_column_set_widget( col, (GtkWidget *)label );
    gtk_widget_show( (GtkWidget *)label );

    g_signal_connect(
            gtk_builder_get_object(grt->builder, "tree_view"),
            "focus-out-event",
            (GCallback)handle_focus_out,
            grt);
    g_signal_connect(
            gtk_tree_view_get_selection( (GtkTreeView *)gtk_builder_get_object(grt->builder, "tree_view")),
            "changed",
            (GCallback)handle_changed,
            grt);
}

gboolean handle_focus_out(GtkWidget *w, GdkEventFocus event, gpointer data)
{
    GtkTreeSelection *sel = gtk_tree_view_get_selection( (GtkTreeView *)w );
    gtk_tree_selection_unselect_all( sel );

    return FALSE;
}

void handle_changed(GtkTreeSelection *sel, gpointer data)
{
    grt_ref *grt = (grt_ref *)data;
    GtkListStore *model;
    GtkTreeIter iter;

    if ( gtk_tree_selection_get_selected( sel, (GtkTreeModel **)&model, &iter ) )
    {
        gtk_widget_set_sensitive( (GtkWidget *)gtk_builder_get_object(grt->builder, "button_pop"), TRUE );
    }
    else
    {
        gtk_widget_set_sensitive( (GtkWidget *)gtk_builder_get_object(grt->builder, "button_pop"), FALSE );
    }
}