Re: Sample bonobo2 container.

Jason Hildebrand <[email protected]>
Newsgroups gmane.comp.gnome.components
Message-ID <1048184079.3315.36.camel@localhost> 
On Thu, 2003-03-20 at 10:20, Martin Sevior wrote:
> Hi Folks,
> 	I'm trying to test the abiword bonobo control which is a 
> straight port of the component we had for bonobo in gnome-1.4. However 
> after browsing through various places I can't find sample code for a 
> simple container that embeds a bonobo-2 control in a remote client.
> 
> Is there some code somewhere that just wraps a clock widget in bonobo 
> control and a client that embeds that control in some gtk container?

Hi Martin,

Attached is a small program which embeds an EOG (eye of gnome) control
to display an image -- it's probably useful for your purposes.  I hacked
it together mostly from the EOG source code to learn how to do controls
and UI merging, and I'm using a variation of it as a container for
testing bonobo support in Vim.
> 
> A nice simple makefile that shows all the stuff needed to compile and link 
> the client would be a bonus.

An extremely simple Makefile is also attached.

By the way -- thanks for all your great work on Abiword!

Hope this helps,
-- 
Jason D. Hildebrand
[email protected]
container.c (text/x-c, 4.6 KB) 
#include <bonobo.h>
#include <glib.h>

BonoboControlFrame  *ctrl_frame;
BonoboUIComponent   *ui_comp;

/* vbox */
GtkWidget           *box;
GtkWidget           *ctrl_widget;

char * image_file;

static Bonobo_Control
instantiate_control()
{
	Bonobo_Control control;
	Bonobo_PersistFile pfile;
	CORBA_Environment ev;

	CORBA_exception_init (&ev);

	/* get control component */
	control = bonobo_get_object ("OAFIID:GNOME_EOG_Control",
				     "Bonobo/Control", &ev);
	if (BONOBO_EX (&ev) || (control == CORBA_OBJECT_NIL))
        exit(1);
	
	/* get PersistFile interface */
    pfile = Bonobo_Unknown_queryInterface (control, "IDL:Bonobo/PersistFile:1.0", &ev);
    if (BONOBO_EX (&ev) || (pfile == CORBA_OBJECT_NIL))
        exit(1);
	
	/* load the file */
    Bonobo_PersistFile_load (pfile, image_file, &ev);
	bonobo_object_release_unref (pfile, NULL);
    return control;
}

static void
verb_DoNothing (BonoboUIComponent *uic, gpointer user_data, const char *cname)
{
}

static BonoboUIVerb app_verbs[] = {
	BONOBO_UI_VERB ("FileNewWindow", verb_DoNothing),
	BONOBO_UI_VERB ("FileOpen",      verb_DoNothing),
	BONOBO_UI_VERB ("FileCloseWindow", verb_DoNothing),
	BONOBO_UI_VERB ("FileExit",      verb_DoNothing),
	BONOBO_UI_VERB ("Preferences",   verb_DoNothing),
	BONOBO_UI_VERB ("HelpAbout",     verb_DoNothing),
	BONOBO_UI_VERB ("Help",          verb_DoNothing),
	BONOBO_UI_VERB ("DnDNewWindow",  verb_DoNothing),
	BONOBO_UI_VERB ("DnDSameWindow", verb_DoNothing),
	BONOBO_UI_VERB ("DnDCancel",     verb_DoNothing),
	BONOBO_UI_VERB_END
};

static void 
add_control_to_ui (BonoboWindow *window, Bonobo_Control control)
{
	CORBA_Environment ev;
	Bonobo_PropertyControl prop_control;
	BonoboUIContainer *ui_container;
    char *curdir;

	g_return_if_fail (window != NULL);
	g_return_if_fail (BONOBO_IS_WINDOW (window));
	
	CORBA_exception_init (&ev);

	ui_container = bonobo_window_get_ui_container (BONOBO_WINDOW (window));
	ctrl_frame = bonobo_control_frame_new (BONOBO_OBJREF (ui_container));

	/* bind and view new control widget */
	bonobo_control_frame_bind_to_control (ctrl_frame, control, &ev);
	bonobo_control_frame_control_activate (ctrl_frame);
	if (control != CORBA_OBJECT_NIL && ctrl_widget == NULL) {
		ctrl_widget = bonobo_control_frame_get_widget (ctrl_frame);
		if (!ctrl_widget)
			g_assert_not_reached ();

        bonobo_window_set_contents (BONOBO_WINDOW(window), GTK_WIDGET(ctrl_widget));
		gtk_widget_show (ctrl_widget);
	}

	ui_comp = bonobo_ui_component_new ("eog");
	bonobo_ui_component_set_container (ui_comp, BONOBO_OBJREF (ui_container), NULL);

    curdir = (char *)getcwd(NULL, 0);
    printf("curdir = %s\n", curdir);
	bonobo_ui_util_set_ui (ui_comp, curdir, "container-ui.xml", "Container", NULL);
    free(curdir);
    bonobo_ui_component_add_verb_list_with_data (ui_comp, app_verbs, window);

	/* update sensitivity of the properties menu item */
	prop_control = Bonobo_Unknown_queryInterface (control, 
						      "IDL:Bonobo/PropertyControl:1.0", &ev);
	bonobo_ui_component_set_prop (ui_comp,
				      "/commands/Preferences",
				      "sensitive",
				      prop_control == CORBA_OBJECT_NIL ? "0" : "1",
				      &ev);
	
	bonobo_object_release_unref (prop_control, &ev);

	/* enable view menu */
	/* FIXME: We should check if the component adds anything to 
	 *        the menu, so that we don't view an empty menu.
	 */

	CORBA_exception_free (&ev);

	/* retrieve control properties and install listeners */
	//check_for_control_properties (window);
}

static void
window_destroyed (GtkWindow *window, char * data)
{
    Bonobo_Control control;
    bonobo_control_frame_control_deactivate(ctrl_frame);
    control = bonobo_control_frame_get_control(ctrl_frame);
    bonobo_object_release_unref( control, NULL );
    bonobo_main_quit();
}

int main(int argc, char * argv[] ) 
{
    BonoboWidget * bw;
    gchar filename[100];
    BonoboWindow      *window;
	BonoboUIEngine    *engine;
	BonoboUIContainer *container;
    Bonobo_Control    control;

    if( argc <= 1 ) { 
        fprintf(stderr, "%s: not enough args\n", argv[0] );
        fprintf(stderr, "Usage: %s <image file>\n", argv[0]);
        exit(1);
    }
    image_file = argv[1];

    bonobo_ui_init ("container", "1.0", &argc, argv);

	if(gnome_vfs_init () == FALSE)
		g_error (_("Could not initialize GnomeVFS!\n"));

	window = BONOBO_WINDOW ( bonobo_window_new ("Window", "Test Container"));

    // instantiate a control
    control = instantiate_control();
    
    // put it into our window
    add_control_to_ui (window, control);

    g_signal_connect (window, "destroy",
          G_CALLBACK (window_destroyed),
          &window);


    gtk_widget_show_all( GTK_WIDGET( window ));

    bonobo_main();

    return 0;
}
container-ui.xml (text/xml, 2.4 KB) 
<Root>

<commands>
	<cmd name="FileNewWindow" _label="_New Window" _tip="Open a new window"
             pixtype="stock" pixname="gtk-new" accel="*Control*n"/>

	<cmd name="FileOpen" _label="_Open..." _tip="Open a file"
	     pixtype="stock" pixname="gtk-open" accel="*Control*o"/>

	<cmd name="FileCloseWindow" _label="_Close" _tip="Close window"
             pixtype="stock" pixname="gtk-close" accel="*Control*w"/>

        <cmd name="FileExit" _label="_Quit" _tip="Quit the program"
	     pixtype="stock" pixname="gtk-quit" accel="*Control*q"/>
	
	<cmd name="Preferences" _label="_Preferences..." _tip="Change preferences"  sensitive="0"
	     pixtype="stock" pixname="gtk-preferences"/>

	<cmd name="HelpAbout" _label="_About" _tip="About this application"
	     pixtype="stock" pixname="About"/>
	<cmd name="Help" _label="Contents" _tip="Help On this application"
	     pixtype="stock" pixname="Help" accel="F1"/>


	<cmd name="DnDNewWindow" _label="Open in new window"/>
	<cmd name="DnDSameWindow" _label="Open in this window"/>
	<cmd name="DnDCancel" _label="Cancel"
	     pixtype="stock" pixname="Cancel"/>
</commands>

<menu>
        <submenu name="File" _label="_File">

		<menuitem name="FileNewWindow" verb=""/>

		<placeholder name="Open Placeholder" delimit="top">
			<menuitem name="FileOpen" verb=""/>
		</placeholder>

		<placeholder name="File Items Placeholder" delimit="top"/>

		<separator/>

		<menuitem name="FileCloseWindow" verb=""/>

		<menuitem name="FileExit" verb=""/>

	</submenu>

	<submenu name="Edit" _label="_Edit">
		<menuitem name="Preferences" verb=""/>
        </submenu>

	<submenu name="View" _label="_View" hidden="1">
		<placeholder name="View Preferences Placeholder"/>
		<placeholder name="View Items Placeholder" delimit="top"/>
	</submenu>

	<submenu name="Help" _label="_Help">
		<menuitem name="Help" verb=""/>
	        <menuitem name="HelpAbout" verb=""/>
	</submenu>
</menu>

<dockitem name="Toolbar" relief="none" homogeneous="1" behavior="exclusive">

        <toolitem name="TBOpen" _label="Open" pixtype="stock"
                  pixname="Open" verb="FileOpen"/>

        <toolitem name="TBCloseWindow" _label="Close" pixtype="stock"
                  pixname="Close" verb="FileCloseWindow"/>
</dockitem>

<popups>
        <popup name="dragndrop">
	      <menuitem name="DnDNewWindow" verb=""/>
	      <menuitem name="DnDSameWindow" verb=""/>
	      <separator/>
	      <menuitem name="DnDCancel" verb=""/>
        </popup>
</popups>

</Root>
Makefile (text/x-makefile, 291 B) 
gnomeccFlags = `pkg-config --cflags libgnomeui-2.0 libgnome-2.0`
ccFlags = -g -c ${gnomeccFlags}
ldFlags = `pkg-config --libs libgnomeui-2.0 libgnome-2.0`

container: container.o
	gcc -o container ${ldFlags} container.o

%.o: %.c
	gcc ${ccFlags} $< -o $@

clean:
	rm -f *.o
	rm -f container
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