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e03ba1bd85
* app/tools/gimptoolmodule.[ch]: New class that uses GTypeModule to dynamically load tool plugins. Does not quite work yet, but builds correctly. * app/tools/tools.c: added some code to test the GimpToolModule code. * app/tools/Makefile.am: added gimptoolmodule to the build.
128 lines
3.8 KiB
C
128 lines
3.8 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995-2002 Spencer Kimball, Peter Mattis and others
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "gimptoolmodule.h"
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static void gimp_tool_module_class_init (GimpToolModuleClass *klass);
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static void gimp_tool_module_init (GimpToolModule *tool);
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static GTypeModuleClass *parent_class = NULL;
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static gboolean
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gimp_tool_module_load (GTypeModule *gmodule) {
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GimpToolModule *module = GIMP_TOOL_MODULE(gmodule);
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g_return_val_if_fail(module, FALSE);
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g_return_val_if_fail(module->filename, FALSE);
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g_return_val_if_fail(g_module_supported(), FALSE);
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module->module = g_module_open(module->filename, G_MODULE_BIND_LAZY);
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if (!module)
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return FALSE;
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if (!g_module_symbol (module->module, "gimp_tool_module_register", (gpointer *) &module->register_tool))
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{
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g_warning (g_module_error());
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g_module_close (module->module);
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return FALSE;
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}
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return TRUE;
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}
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static void
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gimp_tool_module_unload (GTypeModule *gmodule) {
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GimpToolModule *module = GIMP_TOOL_MODULE(gmodule);
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g_return_if_fail(module);
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g_return_if_fail(module->module);
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g_return_if_fail(g_module_supported());
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g_module_close(module->module); /* FIXME: error handling */
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module->module=NULL;
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}
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GType
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gimp_tool_module_get_type (void)
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{
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static GType tool_module_type = 0;
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if (! tool_module_type)
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{
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static const GTypeInfo tool_module_info =
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{
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sizeof (GimpToolModuleClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gimp_tool_module_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GimpToolModule),
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0, /* n_preallocs */
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(GInstanceInitFunc) gimp_tool_module_init,
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};
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tool_module_type = g_type_register_static (G_TYPE_TYPE_MODULE,
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"GimpToolModule",
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&tool_module_info, 0);
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}
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return tool_module_type;
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}
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static void
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gimp_tool_module_class_init (GimpToolModuleClass *klass)
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{
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GTypeModuleClass *g_type_module_class = G_TYPE_MODULE_CLASS(klass);
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parent_class = g_type_class_peek_parent (klass);
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g_type_module_class->load = gimp_tool_module_load;
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g_type_module_class->unload = gimp_tool_module_unload;
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}
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static void
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gimp_tool_module_init (GimpToolModule *module)
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{
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module->module = NULL;
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module->filename = NULL;
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module->register_tool = NULL;
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}
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GimpToolModule *
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gimp_tool_module_new (gchar *filename, Gimp *gimp, GimpToolRegisterCallback callback)
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{
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GimpToolModule *module = GIMP_TOOL_MODULE(g_object_new(GIMP_TYPE_TOOL_MODULE, NULL));
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g_return_val_if_fail (filename, NULL);
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g_return_val_if_fail (gimp, NULL);
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g_return_val_if_fail (callback, NULL);
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module->filename = g_strdup(filename);
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gimp_tool_module_load(G_TYPE_MODULE(module)); /* FIXME: check for errors! */
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module->register_tool (gimp, callback, G_TYPE_MODULE(module));
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gimp_tool_module_unload(G_TYPE_MODULE(module));
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return module;
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}
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