Re: [libcroco-list] sewfox minimal application

[Dodji Seketeli <dodji seketeli org>]

Hi Stephane,

I have modified minifox a bit to provide it with a contextual menu from
which we can dump the box model along with all the style and layouting
information it has, on stdout.

This is commited into CVS HEAD, and I have attached it to this mail so
that you don't have to wait for the anoncvs lag period.

Regards,

Dodji.

On Thu, 2004-02-19 at 10:53, Stephane Bonhomme wrote:
> Hi
> 
> Here is a new version that dumps the box model tree on stdout 
> 
> Le mar 17/02/2004 à 17:04, Stephane Bonhomme a écrit :
> > Hi all
> > 
> > Here is a minimal gtk application that displays a xml file using a css
> > stylesheet with sewfox. 
> > 
> > It only depends on libsewfox and I hope it will be useful for debugging
> > purpose
> > 
> > It could be great if it were included in the test dir of the sewfox
> > source tree. 
> > 
> >  
> > Stephane

/* -*- Mode: C; indent-tabs-mode:nil; c-basic-offset: 8-*- */

/*
 * This file is part of the SEWFOX project
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2.1 of 
 * the GNU Lesser General Public
 * License as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the 
 * GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 *
 *Initial Author: Stephane Bonhomme
 */

#include <stdio.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <sx-box-view.h>

static void  usage (void) ;

static GtkWidget * get_contextual_menu (SXBoxView *a_viewport) ;

static gboolean  delete_event_cb ( GtkWidget *widget,
                                   GdkEvent  *event,
                                   gpointer   data ) ;


static gboolean 
delete_event_cb ( GtkWidget *widget,
                  GdkEvent  *event,
                  gpointer   data )
{
	gtk_main_quit () ;
	return FALSE;
}

static void
dump_box_model_menuitem_activate_cb (GtkWidget *a_menuitem,
                                     gpointer a_user_data)
{
        SXBoxModel *box_model = NULL ;
        SXBoxView *viewport = a_user_data ;

        g_return_if_fail (a_menuitem
                          && GTK_IS_WIDGET (a_menuitem)
                          && SX_IS_BOX_VIEW (viewport)) ;

        sx_box_view_get_box_model (viewport, &box_model) ;
        if (box_model)
        {
                sx_box_dump_to_file ((SXBox*)box_model,
                                     0, stdout) ;
        }
        else
        {
                cr_utils_trace_info ("Got NULL box_model") ;
        }
        
}

static gboolean
button_press_event_cb (GtkWidget *a_viewport,
                       GdkEvent *a_event,
                       gpointer *a_user_data)
{
        GtkWidget * menu = NULL, *window = NULL;
        GdkEventButton *button_event = NULL ;

        g_return_val_if_fail (a_event && a_viewport
                              && SX_BOX_VIEW (a_viewport),
                              FALSE) ;

        window = GTK_WIDGET (a_user_data) ;
        g_return_val_if_fail (window && GTK_IS_WINDOW (window),
                              FALSE) ;

        switch (a_event->type)
        {
        case GDK_BUTTON_PRESS:
                if (a_event->button.button == 3)
                {
                        menu = get_contextual_menu 
                                (SX_BOX_VIEW (a_viewport)) ;
                        if (!menu)
                                break ;
                        button_event = (GdkEventButton*)a_event ;
                        gtk_menu_popup (GTK_MENU (menu),
                                        NULL, NULL, NULL,
                                        window, button_event->button,
                                        button_event->time) ;
                        return TRUE ;
                }
                break ;
        default:
                break ;
        }
        return FALSE ;
}

static void 
usage (void)
{
	g_print ("usage : minifox <xmlfile> <cssfile>\n");
}

static GtkWidget *
get_contextual_menu (SXBoxView *a_viewport)
{
        static GtkWidget * menu = NULL;
        GtkWidget *menuitem= NULL ;

        g_return_val_if_fail (a_viewport
                              && SX_IS_BOX_VIEW (a_viewport),
                              NULL) ;

        if (!menu)
        {
                menu = gtk_menu_new () ;
                menuitem = gtk_menu_item_new_with_label ("Dump Box model") ;
                gtk_widget_show (menuitem) ;
                g_signal_connect (G_OBJECT (menuitem),
                                  "activate",
                                  G_CALLBACK (dump_box_model_menuitem_activate_cb),
                                  a_viewport) ;
                gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem) ;
        }
        return menu ;
}

int 
main (int argc, char **argv) 
{
	GtkWidget *window = NULL;
	GtkWidget *scroll = NULL;
	SXBoxView * viewport = NULL;

	gtk_init (&argc, &argv);
	if (argc != 3) {
		usage ();
		return 1;
	}

	window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
        gtk_window_set_default_size (GTK_WINDOW (window),
				 500, 300) ;
        gtk_window_set_resizable (GTK_WINDOW (window),
                                  TRUE) ;
	g_signal_connect (G_OBJECT (window), "delete-event",
			  G_CALLBACK (delete_event_cb), NULL);

	scroll = gtk_scrolled_window_new (NULL, NULL) ;
	gtk_container_add (GTK_CONTAINER (window), scroll) ;
	g_print ("Rendering xml: %s - css: %s \n",argv[1],argv[2]);
	viewport = sx_box_view_new_from_xml_css_paths(argv[1], argv[2]);
        if (!viewport)
        {
                cr_utils_trace_info ("Could not instanciate the viewport") ;
                return -1 ;
        }
	gtk_container_add (GTK_CONTAINER (scroll), GTK_WIDGET (viewport)) ;
        g_signal_connect (G_OBJECT (viewport),
                          "button-press-event",
                          G_CALLBACK (button_press_event_cb),
                          window) ;
	gtk_widget_show_all (window);
	gtk_main ();

	return 0;
}