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/*******************************************************************************
* Copyright (c) 2007, 2010 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
#include "eclipseGtk.h"
#include "eclipseCommon.h"
#include <dlfcn.h>
#include <string.h>
#include <stdlib.h>
struct GTK_PTRS gtk = { 1 }; /* initialize the first field "not_initialized" so we can tell when we've loaded the pointers */
/* tables to help initialize the function pointers */
/* functions from libgtk-x11-2.0 or libgtk-3.so.0*/
static FN_TABLE gtkFunctions[] = {
FN_TABLE_ENTRY(gtk_container_add, 1),
FN_TABLE_ENTRY(gtk_dialog_run, 1),
FN_TABLE_ENTRY(gtk_image_new_from_pixbuf, 1),
FN_TABLE_ENTRY(gtk_init_check, 1),
FN_TABLE_ENTRY(gtk_init_with_args, 0),
FN_TABLE_ENTRY(gtk_message_dialog_new, 1),
FN_TABLE_ENTRY(gtk_set_locale, 0),
FN_TABLE_ENTRY(gtk_widget_destroy, 1),
FN_TABLE_ENTRY(gtk_widget_destroyed, 1),
FN_TABLE_ENTRY(gtk_widget_show_all, 1),
FN_TABLE_ENTRY(gtk_window_new, 1),
FN_TABLE_ENTRY(gtk_window_resize, 1),
FN_TABLE_ENTRY(gtk_window_set_title, 1),
FN_TABLE_ENTRY(gtk_window_set_decorated, 1),
FN_TABLE_ENTRY(gtk_window_set_position, 1),
{ NULL, NULL }
};
/* functions from libgdk-x11-2.0 or libgdk-3.so.0*/
static FN_TABLE gdkFunctions[] = {
FN_TABLE_ENTRY(gdk_set_program_class, 1),
FN_TABLE_ENTRY(gdk_display_get_default, 1),
FN_TABLE_ENTRY(gdk_x11_display_get_xdisplay, 1),
{ NULL, NULL }
};
/* functions from libgdk_pixbuf-2.0 */
static FN_TABLE pixFunctions[] = {
FN_TABLE_ENTRY(gdk_pixbuf_new_from_file, 1),
FN_TABLE_ENTRY(gdk_pixbuf_get_width, 1),
FN_TABLE_ENTRY(gdk_pixbuf_get_height, 1),
{ NULL, NULL }
};
/* functions from libgobject-2.0 */
static FN_TABLE gobjFunctions[] = {
FN_TABLE_ENTRY(g_signal_connect_data, 1),
FN_TABLE_ENTRY(g_main_context_iteration, 1),
FN_TABLE_ENTRY(g_object_unref, 1),
FN_TABLE_ENTRY(g_timeout_add, 1),
FN_TABLE_ENTRY(g_error_free, 1),
#ifdef SOLARIS
FN_TABLE_ENTRY(g_string_insert_c, 1),
#endif
{ NULL, NULL }
};
/* functions from libX11 */
static FN_TABLE x11Functions[] = {
FN_TABLE_ENTRY(XGetSelectionOwner, 1),
FN_TABLE_ENTRY(XSetSelectionOwner, 1),
FN_TABLE_ENTRY(XCreateWindow, 1),
FN_TABLE_ENTRY(XChangeProperty, 1),
FN_TABLE_ENTRY(XSync, 1),
FN_TABLE_ENTRY(XRootWindow, 1),
FN_TABLE_ENTRY(XDefaultScreen, 1),
FN_TABLE_ENTRY(XInternAtom, 1),
{ NULL, NULL }
};
static int loadGtkSymbols( void * library, FN_TABLE * table) {
int i = 0;
void * fn;
for (i = 0; table[i].fnName != NULL; i++) {
fn = findSymbol(library, table[i].fnName);
if (fn != 0) {
*(table[i].fnPtr) = fn;
} else {
if (table[i].required) return -1;
}
}
return 0;
}
int loadGtk() {
#ifdef AIX
#define DLFLAGS RTLD_LAZY | RTLD_MEMBER
#else
#define DLFLAGS RTLD_LAZY
#endif
void *gdkLib = NULL, *gtkLib = NULL, *objLib = NULL, *pixLib = NULL, *x11Lib = NULL;
if (getenv("org.eclipse.swt.gtk3")) {
gdkLib = dlopen(GDK3_LIB, DLFLAGS);
gtkLib = dlopen(GTK3_LIB, DLFLAGS);
}
if (!gtkLib || !gdkLib) {
gdkLib = dlopen(GDK_LIB, DLFLAGS);
gtkLib = dlopen(GTK_LIB, DLFLAGS);
}
objLib = dlopen(GOBJ_LIB, DLFLAGS);
pixLib = dlopen(PIXBUF_LIB, DLFLAGS);
x11Lib = dlopen(X11_LIB, DLFLAGS);
/* initialize ptr struct to 0's */
memset(>k, 0, sizeof(struct GTK_PTRS));
if ( gtkLib == NULL || loadGtkSymbols(gtkLib, gtkFunctions) != 0) return -1;
if ( gdkLib == NULL || loadGtkSymbols(gdkLib, gdkFunctions) != 0) return -1;
if ( pixLib == NULL || loadGtkSymbols(pixLib, pixFunctions) != 0) return -1;
if ( objLib == NULL || loadGtkSymbols(objLib, gobjFunctions) != 0) return -1;
if ( x11Lib == NULL || loadGtkSymbols(x11Lib, x11Functions) != 0) return -1;
return 0;
}
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