mirror of https://github.com/GNOME/gimp.git
299 lines
7.8 KiB
C
299 lines
7.8 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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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 "config.h"
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#include <string.h>
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#include <glib-object.h>
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#include "libgimpbase/gimpbase.h"
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#include "libgimpbase/gimpprotocol.h"
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#include "libgimpbase/gimpwire.h"
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#include "plug-in-types.h"
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#include "config/gimpguiconfig.h"
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#include "base/tile.h"
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#include "core/gimp.h"
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#include "pdb/procedural_db.h"
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#include "plug-in.h"
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#include "plug-in-params.h"
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#include "plug-in-run.h"
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#include "plug-in-shm.h"
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#include "libgimp/gimpintl.h"
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/* local function prototypes */
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static Argument * plug_in_temp_run (ProcRecord *proc_rec,
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Argument *args,
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gint argc);
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static Argument * plug_in_get_return_vals (PlugIn *plug_in,
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ProcRecord *proc_rec);
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/* public functions */
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Argument *
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plug_in_run (Gimp *gimp,
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ProcRecord *proc_rec,
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Argument *args,
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gint argc,
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gboolean synchronous,
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gboolean destroy_return_vals,
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gint gdisp_ID)
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{
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Argument *return_vals = NULL;
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PlugIn *plug_in;
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g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
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g_return_val_if_fail (proc_rec != NULL, NULL);
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g_return_val_if_fail (argc == 0 || args != NULL, NULL);
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if (proc_rec->proc_type == GIMP_TEMPORARY)
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{
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return_vals = plug_in_temp_run (proc_rec, args, argc);
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goto done;
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}
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plug_in = plug_in_new (gimp, proc_rec->exec_method.plug_in.filename);
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if (plug_in)
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{
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GPConfig config;
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GPProcRun proc_run;
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if (! plug_in_open (plug_in))
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{
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plug_in_unref (plug_in);
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goto done;
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}
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plug_in->recurse = synchronous;
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config.version = GP_VERSION;
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config.tile_width = TILE_WIDTH;
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config.tile_height = TILE_HEIGHT;
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config.shm_ID = plug_in_shm_get_ID (gimp);
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config.gamma = gimp->config->gamma_val;
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config.install_cmap = gimp->config->install_cmap;
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config.show_tool_tips = GIMP_GUI_CONFIG (gimp->config)->show_tool_tips;
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config.min_colors = CLAMP (gimp->config->min_colors, 27, 256);
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config.gdisp_ID = gdisp_ID;
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proc_run.name = proc_rec->name;
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proc_run.nparams = argc;
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proc_run.params = plug_in_args_to_params (args, argc, FALSE);
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if (! gp_config_write (plug_in->my_write, &config, plug_in) ||
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! gp_proc_run_write (plug_in->my_write, &proc_run, plug_in) ||
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! wire_flush (plug_in->my_write, plug_in))
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{
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return_vals = procedural_db_return_args (proc_rec, FALSE);
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goto done;
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}
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plug_in_params_destroy (proc_run.params, proc_run.nparams, FALSE);
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plug_in_ref (plug_in);
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/* If this is an automatically installed extension, wait for an
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* installation-confirmation message
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*/
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if ((proc_rec->proc_type == GIMP_EXTENSION) && (proc_rec->num_args == 0))
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{
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plug_in->starting_ext = TRUE;
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plug_in_main_loop (plug_in);
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plug_in->starting_ext = FALSE;
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}
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/* If this plug-in is requested to run synchronously, wait for
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* it's return values
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*/
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if (plug_in->recurse)
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{
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plug_in_main_loop (plug_in);
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return_vals = plug_in_get_return_vals (plug_in, proc_rec);
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}
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plug_in_unref (plug_in);
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}
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done:
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if (return_vals && destroy_return_vals)
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{
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procedural_db_destroy_args (return_vals, proc_rec->num_values);
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return_vals = NULL;
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}
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return return_vals;
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}
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void
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plug_in_repeat (Gimp *gimp,
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gint display_ID,
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gint image_ID,
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gint drawable_ID,
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gboolean with_interface)
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{
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Argument *args;
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gint i;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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if (gimp->last_plug_in)
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{
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/* construct the procedures arguments */
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args = g_new (Argument, 3);
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/* initialize the first three argument types */
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for (i = 0; i < 3; i++)
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args[i].arg_type = gimp->last_plug_in->args[i].arg_type;
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/* initialize the first three plug-in arguments */
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args[0].value.pdb_int = (with_interface ?
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GIMP_RUN_INTERACTIVE : GIMP_RUN_WITH_LAST_VALS);
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args[1].value.pdb_int = image_ID;
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args[2].value.pdb_int = drawable_ID;
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/* run the plug-in procedure */
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plug_in_run (gimp, gimp->last_plug_in, args, 3, FALSE, TRUE, display_ID);
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g_free (args);
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}
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}
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/* private functions */
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static Argument *
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plug_in_temp_run (ProcRecord *proc_rec,
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Argument *args,
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gint argc)
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{
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Argument *return_vals = NULL;
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PlugIn *plug_in;
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plug_in = (PlugIn *) proc_rec->exec_method.temporary.plug_in;
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if (plug_in)
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{
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GPProcRun proc_run;
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gboolean old_recurse;
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if (plug_in->in_temp_proc)
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{
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return_vals = procedural_db_return_args (proc_rec, FALSE);
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goto done;
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}
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plug_in->in_temp_proc = TRUE;
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proc_run.name = proc_rec->name;
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proc_run.nparams = argc;
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proc_run.params = plug_in_args_to_params (args, argc, FALSE);
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if (! gp_temp_proc_run_write (plug_in->my_write, &proc_run, plug_in) ||
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! wire_flush (plug_in->my_write, plug_in))
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{
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return_vals = procedural_db_return_args (proc_rec, FALSE);
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goto done;
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}
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plug_in_params_destroy (proc_run.params, proc_run.nparams, FALSE);
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old_recurse = plug_in->recurse;
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plug_in->recurse = TRUE;
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#ifdef ENABLE_TEMP_RETURN
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plug_in_ref (plug_in);
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plug_in_main_loop (plug_in);
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return_vals = plug_in_get_return_vals (proc_rec);
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#else
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return_vals = procedural_db_return_args (proc_rec, TRUE);
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#endif
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plug_in->recurse = old_recurse;
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plug_in->in_temp_proc = FALSE;
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#ifdef ENABLE_TEMP_RETURN
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plug_in_unref (plug_in);
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#endif
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}
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done:
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return return_vals;
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}
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static Argument *
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plug_in_get_return_vals (PlugIn *plug_in,
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ProcRecord *proc_rec)
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{
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Argument *return_vals;
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gint nargs;
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g_return_val_if_fail (plug_in != NULL, NULL);
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g_return_val_if_fail (proc_rec != NULL, NULL);
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/* Return the status code plus the current return values. */
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nargs = proc_rec->num_values + 1;
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if (plug_in->return_vals && plug_in->n_return_vals == nargs)
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{
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return_vals = plug_in->return_vals;
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}
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else if (plug_in->return_vals)
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{
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/* Allocate new return values of the correct size. */
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return_vals = procedural_db_return_args (proc_rec, FALSE);
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/* Copy all of the arguments we can. */
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memcpy (return_vals, plug_in->return_vals,
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sizeof (Argument) * MIN (plug_in->n_return_vals, nargs));
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/* Free the old argument pointer. This will cause a memory leak
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* only if there were more values returned than we need (which
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* shouldn't ever happen).
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*/
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g_free (plug_in->return_vals);
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}
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else
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{
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/* Just return a dummy set of values. */
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return_vals = procedural_db_return_args (proc_rec, FALSE);
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}
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/* We have consumed any saved values, so clear them. */
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plug_in->return_vals = NULL;
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plug_in->n_return_vals = 0;
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return return_vals;
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}
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