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gimp/app/plug-in/plug-in-shm.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 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.
*/
#include "config.h"
#include <errno.h>
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/wait.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <time.h>
#include <unistd.h>
#include "libgimp/parasite.h"
#include "libgimp/parasiteP.h" /* ick */
#ifdef HAVE_IPC_H
#include <sys/ipc.h>
#endif
#ifdef HAVE_SHM_H
#include <sys/shm.h>
#endif
#include "libgimp/gimpprotocol.h"
#include "libgimp/gimpwire.h"
#include "app_procs.h"
#include "appenv.h"
#include "brush_select.h" /* Need for closing dialogs */
#include "drawable.h"
#include "datafiles.h"
#include "errors.h"
#include "gdisplay.h"
#include "general.h"
#include "gimage.h"
#include "gimprc.h"
#include "gradient.h"
#include "interface.h"
#include "menus.h"
#include "pattern_select.h" /* Needed for closing pattern dialogs */
#include "plug_in.h"
#include "tile.h" /* ick. */
#include "libgimp/gimpintl.h"
#define SEPARATE_PROGRESS_BAR
typedef struct _PlugInBlocked PlugInBlocked;
typedef enum
{
RUN_INTERACTIVE = 0x0,
RUN_NONINTERACTIVE = 0x1,
RUN_WITH_LAST_VALS = 0x2
} RunModeType;
struct _PlugInBlocked
{
PlugIn *plug_in;
char *proc_name;
};
static int plug_in_write (int fd,
guint8 *buf,
gulong count);
static int plug_in_flush (int fd);
static void plug_in_push (PlugIn *plug_in);
static void plug_in_pop (void);
static void plug_in_recv_message (gpointer data,
gint id,
GdkInputCondition cond);
static void plug_in_handle_message (WireMessage *msg);
static void plug_in_handle_quit (void);
static void plug_in_handle_tile_req (GPTileReq *tile_req);
static void plug_in_handle_proc_run (GPProcRun *proc_run);
static void plug_in_handle_proc_return (GPProcReturn *proc_return);
static void plug_in_handle_proc_install (GPProcInstall *proc_install);
static void plug_in_handle_proc_uninstall (GPProcUninstall *proc_uninstall);
static void plug_in_write_rc (char *filename);
static void plug_in_init_file (char *filename);
static void plug_in_query (char *filename,
PlugInDef *plug_in_def);
static void plug_in_add_to_db (void);
static void plug_in_make_menu (void);
static void plug_in_callback (GtkWidget *widget,
gpointer client_data);
static void plug_in_proc_def_insert (PlugInProcDef *proc_def);
static void plug_in_proc_def_remove (PlugInProcDef *proc_def);
static void plug_in_proc_def_destroy (PlugInProcDef *proc_def,
int data_only);
static Argument* plug_in_temp_run (ProcRecord *proc_rec,
Argument *args,
int argc);
static Argument* plug_in_params_to_args (GPParam *params,
int nparams,
int full_copy);
static GPParam* plug_in_args_to_params (Argument *args,
int nargs,
int full_copy);
static void plug_in_params_destroy (GPParam *params,
int nparams,
int full_destroy);
static void plug_in_args_destroy (Argument *args,
int nargs,
int full_destroy);
static void plug_in_disconnect_cancel (PlugIn *plug_in);
static Argument* progress_init_invoker (Argument *args);
static Argument* progress_update_invoker (Argument *args);
static Argument* message_invoker (Argument *args);
static Argument* message_handler_get_invoker (Argument *args);
static Argument* message_handler_set_invoker (Argument *args);
static Argument* plugin_temp_PDB_name_invoker (Argument *args);
static GSList *plug_in_defs = NULL;
static GSList *gimprc_proc_defs = NULL;
static GSList *proc_defs = NULL;
static GSList *open_plug_ins = NULL;
static GSList *blocked_plug_ins = NULL;
static GSList *plug_in_stack = NULL;
static PlugIn *current_plug_in = NULL;
static int current_readfd = 0;
static int current_writefd = 0;
static int current_write_buffer_index = 0;
static char *current_write_buffer = NULL;
static Argument *current_return_vals = NULL;
static int current_return_nvals = 0;
static ProcRecord *last_plug_in = NULL;
static int shm_ID = -1;
static guchar *shm_addr = NULL;
static int write_pluginrc = FALSE;
static ProcArg progress_init_args[] =
{
{ PDB_STRING,
"message",
N_("Message to use in the progress dialog.") },
{ PDB_INT32,
"gdisplay",
N_("GDisplay to update progressbar in, or -1 for a seperate window") }
};
static ProcRecord progress_init_proc =
{
"gimp_progress_init",
N_("Initializes the progress bar for the current plug-in"),
N_("Initializes the progress bar for the current plug-in. It is only valid to call this procedure from a plug-in."),
"Spencer Kimball & Peter Mattis",
"Spencer Kimball & Peter Mattis",
"1995-1996",
PDB_INTERNAL,
2,
progress_init_args,
0,
NULL,
{ { progress_init_invoker } },
};
static ProcArg progress_update_args[] =
{
{ PDB_FLOAT,
"percentage",
N_("Percentage of progress completed") }
};
static ProcRecord progress_update_proc =
{
"gimp_progress_update",
N_("Updates the progress bar for the current plug-in"),
N_("Updates the progress bar for the current plug-in. It is only valid to call this procedure from a plug-in."),
"Spencer Kimball & Peter Mattis",
"Spencer Kimball & Peter Mattis",
"1995-1996",
PDB_INTERNAL,
1,
progress_update_args,
0,
NULL,
{ { progress_update_invoker } },
};
static ProcArg message_args[] =
{
{ PDB_STRING,
"message",
N_("Message to display in the dialog.") }
};
static ProcRecord message_proc =
{
"gimp_message",
N_("Displays a dialog box with a message"),
N_("Displays a dialog box with a message. Useful for status or error reporting."),
"Spencer Kimball & Peter Mattis",
"Spencer Kimball & Peter Mattis",
"1995-1996",
PDB_INTERNAL,
1,
message_args,
0,
NULL,
{ { message_invoker } },
};
static ProcArg message_handler_get_out_args[] =
{
{ PDB_INT32,
"handler",
N_("the current handler type: { MESSAGE_BOX (0), CONSOLE (1) }") }
};
static ProcRecord message_handler_get_proc =
{
"gimp_message_handler_get",
N_("Returns the current state of where warning messages are displayed."),
N_("This procedure returns the way g_message warnings are displayed. They can be shown in a dialog box or printed on the console where gimp was started."),
"Manish Singh",
"Manish Singh",
"1998",
PDB_INTERNAL,
0,
NULL,
1,
message_handler_get_out_args,
{ { message_handler_get_invoker } },
};
static ProcArg message_handler_set_args[] =
{
{ PDB_INT32,
"handler",
N_("the new handler type: { MESSAGE_BOX (0), CONSOLE (1) }") }
};
static ProcRecord message_handler_set_proc =
{
"gimp_message_handler_set",
N_("Controls where warning messages are displayed."),
N_("This procedure controls how g_message warnings are displayed. They can be shown in a dialog box or printed on the console where gimp was started."),
"Manish Singh",
"Manish Singh",
"1998",
PDB_INTERNAL,
1,
message_handler_set_args,
0,
NULL,
{ { message_handler_set_invoker } },
};
static ProcArg plugin_temp_PDB_name_out_args[] =
{
{ PDB_STRING,
"Temp name",
N_("A unique temporary name for a temporary PDB entry name"),
},
};
static ProcRecord plugin_temp_PDB_name_proc =
{
"gimp_temp_PDB_name",
N_("Generates a unique temporary PDB name"),
N_("This procedure generates a temporary PDB entry name that is guaranteed to be unique. It is many used by the interactive popup dialogs to generate a PDB entry name."),
"Andy Thomas",
"Andy Thomas",
"1998",
PDB_INTERNAL,
0,
NULL,
1,
plugin_temp_PDB_name_out_args,
{ { plugin_temp_PDB_name_invoker } },
};
void
plug_in_init ()
{
extern int use_shm;
char filename[MAXPATHLEN];
GSList *tmp, *tmp2;
PlugInDef *plug_in_def;
PlugInProcDef *proc_def;
gfloat nplugins, nth;
/* initialize the progress init and update procedure db calls. */
procedural_db_register (&progress_init_proc);
procedural_db_register (&progress_update_proc);
/* initialize the message box procedural db calls */
procedural_db_register (&message_proc);
procedural_db_register (&message_handler_get_proc);
procedural_db_register (&message_handler_set_proc);
/* initialize the message box procedural db calls */
procedural_db_register (&plugin_temp_PDB_name_proc);
/* initialize the gimp protocol library and set the read and
* write handlers.
*/
gp_init ();
wire_set_writer (plug_in_write);
wire_set_flusher (plug_in_flush);
#ifdef HAVE_SHM_H
/* allocate a piece of shared memory for use in transporting tiles
* to plug-ins. if we can't allocate a piece of shared memory then
* we'll fall back on sending the data over the pipe.
*/
if (use_shm)
{
shm_ID = shmget (IPC_PRIVATE, TILE_WIDTH * TILE_HEIGHT * 4, IPC_CREAT | 0777);
if (shm_ID == -1)
g_message (_("shmget failed...disabling shared memory tile transport\n"));
else
{
shm_addr = (guchar*) shmat (shm_ID, 0, 0);
if (shm_addr == (guchar*) -1)
{
g_message (_("shmat failed...disabling shared memory tile transport\n"));
shm_ID = -1;
}
#ifdef IPC_RMID_DEFERRED_RELEASE
if (shm_addr != (guchar*) -1)
shmctl (shm_ID, IPC_RMID, 0);
#endif
}
}
#endif
/* search for binaries in the plug-in directory path */
datafiles_read_directories (plug_in_path, plug_in_init_file, MODE_EXECUTABLE);
/* read the pluginrc file for cached data */
if (pluginrc_path)
{
if (*pluginrc_path == '/')
strcpy(filename, pluginrc_path);
else
sprintf(filename, "%s/%s", gimp_directory(), pluginrc_path);
}
else
sprintf (filename, "%s/pluginrc", gimp_directory ());
app_init_update_status(_("Resource configuration"), filename, -1);
parse_gimprc_file (filename);
/* query any plug-ins that have changed since we last wrote out
* the pluginrc file.
*/
tmp = plug_in_defs;
app_init_update_status(_("Plug-ins"), "", 0);
nplugins = g_slist_length(tmp);
nth = 0;
while (tmp)
{
plug_in_def = tmp->data;
tmp = tmp->next;
if (plug_in_def->query)
{
write_pluginrc = TRUE;
if ((be_verbose == TRUE) || (no_splash == TRUE))
g_print (_("query plug-in: \"%s\"\n"), plug_in_def->prog);
plug_in_query (plug_in_def->prog, plug_in_def);
}
app_init_update_status(NULL, plug_in_def->prog, nth/nplugins);
nth++;
}
/* insert the proc defs */
tmp = gimprc_proc_defs;
while (tmp)
{
proc_def = g_new (PlugInProcDef, 1);
*proc_def = *((PlugInProcDef*) tmp->data);
plug_in_proc_def_insert (proc_def);
tmp = tmp->next;
}
tmp = plug_in_defs;
while (tmp)
{
plug_in_def = tmp->data;
tmp = tmp->next;
tmp2 = plug_in_def->proc_defs;
while (tmp2)
{
proc_def = tmp2->data;
tmp2 = tmp2->next;
plug_in_proc_def_insert (proc_def);
}
}
/* write the pluginrc file if necessary */
if (write_pluginrc)
{
if ((be_verbose == TRUE) || (no_splash == TRUE))
g_print (_("writing \"%s\"\n"), filename);
plug_in_write_rc (filename);
}
/* add the plug-in procs to the procedure database */
plug_in_add_to_db ();
/* make the menu */
plug_in_make_menu ();
/* run the available extensions */
tmp = proc_defs;
if ((be_verbose == TRUE) || (no_splash == TRUE))
g_print (_("Starting extensions: "));
app_init_update_status(_("Extensions"), "", 0);
nplugins = g_slist_length(tmp); nth = 0;
while (tmp)
{
proc_def = tmp->data;
tmp = tmp->next;
if (proc_def->prog &&
(proc_def->db_info.num_args == 0) &&
(proc_def->db_info.proc_type == PDB_EXTENSION))
{
if ((be_verbose == TRUE) || (no_splash == TRUE))
g_print ("%s ", proc_def->db_info.name);
app_init_update_status(NULL, proc_def->db_info.name,
nth/nplugins);
plug_in_run (&proc_def->db_info, NULL, 0, FALSE, TRUE, -1);
}
}
if ((be_verbose == TRUE) || (no_splash == TRUE))
g_print ("\n");
/* free up stuff */
tmp = plug_in_defs;
while (tmp)
{
plug_in_def = tmp->data;
tmp = tmp->next;
g_slist_free (plug_in_def->proc_defs);
g_free (plug_in_def->prog);
g_free (plug_in_def);
}
g_slist_free (plug_in_defs);
}
void
plug_in_kill ()
{
GSList *tmp;
PlugIn *plug_in;
#ifdef HAVE_SHM_H
#ifndef IPC_RMID_DEFERRED_RELEASE
if (shm_ID != -1)
{
shmdt ((char*) shm_addr);
shmctl (shm_ID, IPC_RMID, 0);
}
#else /* IPC_RMID_DEFERRED_RELEASE */
if (shm_ID != -1)
shmdt ((char*) shm_addr);
#endif
#endif
tmp = open_plug_ins;
while (tmp)
{
plug_in = tmp->data;
tmp = tmp->next;
plug_in_destroy (plug_in);
}
}
void
plug_in_add (char *prog,
char *menu_path,
char *accelerator)
{
PlugInProcDef *proc_def;
GSList *tmp;
if (strncmp ("plug_in_", prog, 8) != 0)
{
char *t = g_new (char, strlen (prog) + 9);
sprintf (t, "plug_in_%s", prog);
g_free (prog);
prog = t;
}
tmp = gimprc_proc_defs;
while (tmp)
{
proc_def = tmp->data;
tmp = tmp->next;
if (strcmp (proc_def->db_info.name, prog) == 0)
{
if (proc_def->db_info.name)
g_free (proc_def->db_info.name);
if (proc_def->menu_path)
g_free (proc_def->menu_path);
if (proc_def->accelerator)
g_free (proc_def->accelerator);
if (proc_def->extensions)
g_free (proc_def->extensions);
if (proc_def->prefixes)
g_free (proc_def->prefixes);
if (proc_def->magics)
g_free (proc_def->magics);
if (proc_def->image_types)
g_free (proc_def->image_types);
proc_def->db_info.name = prog;
proc_def->menu_path = menu_path;
proc_def->accelerator = accelerator;
proc_def->prefixes = NULL;
proc_def->extensions = NULL;
proc_def->magics = NULL;
proc_def->image_types = NULL;
return;
}
}
proc_def = g_new0 (PlugInProcDef, 1);
proc_def->db_info.name = prog;
proc_def->menu_path = menu_path;
proc_def->accelerator = accelerator;
gimprc_proc_defs = g_slist_prepend (gimprc_proc_defs, proc_def);
}
char*
plug_in_image_types (char *name)
{
PlugInDef *plug_in_def;
PlugInProcDef *proc_def;
GSList *tmp;
if (current_plug_in)
{
plug_in_def = current_plug_in->user_data;
tmp = plug_in_def->proc_defs;
}
else
{
tmp = proc_defs;
}
while (tmp)
{
proc_def = tmp->data;
tmp = tmp->next;
if (strcmp (proc_def->db_info.name, name) == 0)
return proc_def->image_types;
}
return NULL;
}
GSList*
plug_in_extensions_parse (char *extensions)
{
GSList *list;
char *extension;
list = NULL;
/* EXTENSIONS can be NULL. Avoid calling strtok if it is. */
if (extensions)
{
extensions = g_strdup (extensions);
extension = strtok (extensions, " \t,");
while (extension)
{
list = g_slist_prepend (list, g_strdup (extension));
extension = strtok (NULL, " \t,");
}
g_free (extensions);
}
return g_slist_reverse (list);
}
void
plug_in_add_internal (PlugInProcDef *proc_def)
{
proc_defs = g_slist_prepend (proc_defs, proc_def);
}
PlugInProcDef*
plug_in_file_handler (char *name,
char *extensions,
char *prefixes,
char *magics)
{
PlugInDef *plug_in_def;
PlugInProcDef *proc_def;
GSList *tmp;
if (current_plug_in)
{
plug_in_def = current_plug_in->user_data;
tmp = plug_in_def->proc_defs;
}
else
{
tmp = proc_defs;
}
while (tmp)
{
proc_def = tmp->data;
tmp = tmp->next;
if (strcmp (proc_def->db_info.name, name) == 0)
{
/* EXTENSIONS can be proc_def->extensions */
if (proc_def->extensions != extensions)
{
if (proc_def->extensions)
g_free (proc_def->extensions);
proc_def->extensions = g_strdup (extensions);
}
proc_def->extensions_list = plug_in_extensions_parse (proc_def->extensions);
/* PREFIXES can be proc_def->prefixes */
if (proc_def->prefixes != prefixes)
{
if (proc_def->prefixes)
g_free (proc_def->prefixes);
proc_def->prefixes = g_strdup (prefixes);
}
proc_def->prefixes_list = plug_in_extensions_parse (proc_def->prefixes);
/* MAGICS can be proc_def->magics */
if (proc_def->magics != magics)
{
if (proc_def->magics)
g_free (proc_def->magics);
proc_def->magics = g_strdup (magics);
}
proc_def->magics_list = plug_in_extensions_parse (proc_def->magics);
return proc_def;
}
}
return NULL;
}
void
plug_in_def_add (PlugInDef *plug_in_def)
{
GSList *tmp;
PlugInDef *tplug_in_def;
char *t1, *t2;
t1 = strrchr (plug_in_def->prog, '/');
if (t1)
t1 = t1 + 1;
else
t1 = plug_in_def->prog;
tmp = plug_in_defs;
while (tmp)
{
tplug_in_def = tmp->data;
t2 = strrchr (tplug_in_def->prog, '/');
if (t2)
t2 = t2 + 1;
else
t2 = tplug_in_def->prog;
if (strcmp (t1, t2) == 0)
{
if ((strcmp (plug_in_def->prog, tplug_in_def->prog) == 0) &&
(plug_in_def->mtime == tplug_in_def->mtime))
{
/* Use cached plug-in entry */
tmp->data = plug_in_def;
g_free (tplug_in_def->prog);
g_free (tplug_in_def);
}
else
{
g_free (plug_in_def->prog);
g_free (plug_in_def);
}
return;
}
tmp = tmp->next;
}
write_pluginrc = TRUE;
g_print (_("\"%s\" executable not found\n"), plug_in_def->prog);
g_free (plug_in_def->prog);
g_free (plug_in_def);
}
char*
plug_in_menu_path (char *name)
{
PlugInDef *plug_in_def;
PlugInProcDef *proc_def;
GSList *tmp, *tmp2;
tmp = plug_in_defs;
while (tmp)
{
plug_in_def = tmp->data;
tmp = tmp->next;
tmp2 = plug_in_def->proc_defs;
while (tmp2)
{
proc_def = tmp2->data;
tmp2 = tmp2->next;
if (strcmp (proc_def->db_info.name, name) == 0)
return proc_def->menu_path;
}
}
tmp = proc_defs;
while (tmp)
{
proc_def = tmp->data;
tmp = tmp->next;
if (strcmp (proc_def->db_info.name, name) == 0)
return proc_def->menu_path;
}
return NULL;
}
PlugIn*
plug_in_new (char *name)
{
PlugIn *plug_in;
char *path;
if (name[0] != '/')
{
path = search_in_path (plug_in_path, name);
if (!path)
{
g_message (_("unable to locate plug-in: \"%s\""), name);
return NULL;
}
}
else
{
path = name;
}
plug_in = g_new (PlugIn, 1);
plug_in->open = FALSE;
plug_in->destroy = FALSE;
plug_in->query = FALSE;
plug_in->synchronous = FALSE;
plug_in->recurse = FALSE;
plug_in->busy = FALSE;
plug_in->pid = 0;
plug_in->args[0] = g_strdup (path);
plug_in->args[1] = g_strdup ("-gimp");
plug_in->args[2] = g_new (char, 16);
plug_in->args[3] = g_new (char, 16);
plug_in->args[4] = NULL;
plug_in->args[5] = NULL;
plug_in->args[6] = NULL;
plug_in->my_read = 0;
plug_in->my_write = 0;
plug_in->his_read = 0;
plug_in->his_write = 0;
plug_in->input_id = 0;
plug_in->write_buffer_index = 0;
plug_in->temp_proc_defs = NULL;
plug_in->progress = NULL;
plug_in->progress_label = NULL;
plug_in->progress_bar = NULL;
plug_in->progress_gdisp_ID = -1;
plug_in->user_data = NULL;
return plug_in;
}
void
plug_in_destroy (PlugIn *plug_in)
{
GDisplay *gdisp;
guint c_id;
if (plug_in)
{
plug_in_close (plug_in, TRUE);
if (plug_in->args[0])
g_free (plug_in->args[0]);
if (plug_in->args[1])
g_free (plug_in->args[1]);
if (plug_in->args[2])
g_free (plug_in->args[2]);
if (plug_in->args[3])
g_free (plug_in->args[3]);
if (plug_in->args[4])
g_free (plug_in->args[4]);
if (plug_in->args[5])
g_free (plug_in->args[5]);
if (plug_in->progress_gdisp_ID > 0)
{
gdisp = gdisplay_get_ID(plug_in->progress_gdisp_ID);
c_id = gtk_statusbar_get_context_id(GTK_STATUSBAR(gdisp->statusbar),
"progress");
gtk_statusbar_pop(GTK_STATUSBAR(gdisp->statusbar), c_id);
gtk_progress_bar_update(GTK_PROGRESS_BAR(gdisp->progressbar), 0.0);
plug_in_disconnect_cancel (plug_in);
gdisp->progressid = 0;
}
if (plug_in == current_plug_in)
plug_in_pop ();
if (!plug_in->destroy)
g_free (plug_in);
}
}
int
plug_in_open (PlugIn *plug_in)
{
int my_read[2];
int my_write[2];
if (plug_in)
{
/* Open two pipes. (Bidirectional communication).
*/
if ((pipe (my_read) == -1) || (pipe (my_write) == -1))
{
g_message (_("unable to open pipe"));
return 0;
}
plug_in->my_read = my_read[0];
plug_in->my_write = my_write[1];
plug_in->his_read = my_write[0];
plug_in->his_write = my_read[1];
/* Remember the file descriptors for the pipes.
*/
sprintf (plug_in->args[2], "%d", plug_in->his_read);
sprintf (plug_in->args[3], "%d", plug_in->his_write);
/* Set the rest of the command line arguments.
*/
if (plug_in->query)
{
plug_in->args[4] = g_strdup ("-query");
}
else
{
plug_in->args[4] = g_new (char, 16);
plug_in->args[5] = g_new (char, 16);
sprintf (plug_in->args[4], "%d", TILE_WIDTH);
sprintf (plug_in->args[5], "%d", TILE_WIDTH);
}
/* Fork another process. We'll remember the process id
* so that we can later use it to kill the filter if
* necessary.
*/
plug_in->pid = fork ();
if (plug_in->pid == 0)
{
close(plug_in->my_read);
close(plug_in->my_write);
/* Execute the filter. The "_exit" call should never
* be reached, unless some strange error condition
* exists.
*/
execvp (plug_in->args[0], plug_in->args);
_exit (1);
}
else if (plug_in->pid == -1)
{
g_message (_("unable to run plug-in: %s\n"), plug_in->args[0]);
plug_in_destroy (plug_in);
return 0;
}
close(plug_in->his_read); plug_in->his_read = -1;
close(plug_in->his_write); plug_in->his_write = -1;
if (!plug_in->synchronous)
{
plug_in->input_id = gdk_input_add (plug_in->my_read,
GDK_INPUT_READ,
plug_in_recv_message,
plug_in);
open_plug_ins = g_slist_prepend (open_plug_ins, plug_in);
}
plug_in->open = TRUE;
return 1;
}
return 0;
}
void
plug_in_close (PlugIn *plug_in,
int kill_it)
{
int status;
struct timeval tv;
if (plug_in && plug_in->open)
{
plug_in->open = FALSE;
/* Ask the filter to exit gracefully
*/
if (kill_it && plug_in->pid)
{
plug_in_push (plug_in);
gp_quit_write (current_writefd);
plug_in_pop ();
/* give the plug-in some time (10 ms) */
tv.tv_sec = 0;
tv.tv_usec = 100;
select (0, NULL, NULL, NULL, &tv);
}
/* If necessary, kill the filter.
*/
if (kill_it && plug_in->pid)
status = kill (plug_in->pid, SIGKILL);
/* Wait for the process to exit. This will happen
* immediately if it was just killed.
*/
if (plug_in->pid)
waitpid (plug_in->pid, &status, 0);
/* Remove the input handler.
*/
if (plug_in->input_id)
gdk_input_remove (plug_in->input_id);
/* Close the pipes.
*/
if (plug_in->my_read)
close (plug_in->my_read);
if (plug_in->my_write)
close (plug_in->my_write);
if (plug_in->his_read)
close (plug_in->his_read);
if (plug_in->his_write)
close (plug_in->his_write);
wire_clear_error();
/* Destroy the progress dialog if it exists
*/
#ifdef SEPARATE_PROGRESS_BAR
if (plug_in->progress)
{
gtk_signal_disconnect_by_data (GTK_OBJECT (plug_in->progress), plug_in);
gtk_widget_destroy (plug_in->progress);
plug_in->progress = NULL;
plug_in->progress_label = NULL;
plug_in->progress_bar = NULL;
}
#else
if (plug_in->progress)
{
progress_end ();
plug_in->progress = NULL;
}
#endif
/* Set the fields to null values.
*/
plug_in->pid = 0;
plug_in->input_id = 0;
plug_in->my_read = 0;
plug_in->my_write = 0;
plug_in->his_read = 0;
plug_in->his_write = 0;
if (plug_in->recurse)
gtk_main_quit ();
plug_in->synchronous = FALSE;
plug_in->recurse = FALSE;
/* Unregister any temporary procedures
*/
if (plug_in->temp_proc_defs)
{
GSList *list;
PlugInProcDef *proc_def;
list = plug_in->temp_proc_defs;
while (list)
{
proc_def = (PlugInProcDef *) list->data;
plug_in_proc_def_remove (proc_def);
list = list->next;
}
g_slist_free (plug_in->temp_proc_defs);
plug_in->temp_proc_defs = NULL;
}
/* Close any dialogs that this plugin might have opened */
brushes_check_dialogs();
patterns_check_dialogs();
gradients_check_dialogs();
open_plug_ins = g_slist_remove (open_plug_ins, plug_in);
}
}
static Argument *
plug_in_get_current_return_vals (ProcRecord *proc_rec)
{
Argument *return_vals;
int nargs;
/* Return the status code plus the current return values. */
nargs = proc_rec->num_values + 1;
if (current_return_vals && current_return_nvals == nargs)
return_vals = current_return_vals;
else if (current_return_vals)
{
/* Allocate new return values of the correct size. */
return_vals = procedural_db_return_args (proc_rec, FALSE);
/* Copy all of the arguments we can. */
memcpy (return_vals, current_return_vals,
sizeof (Argument) * MIN (current_return_nvals, nargs));
/* Free the old argument pointer. This will cause a memory leak
only if there were more values returned than we need (which
shouldn't ever happen). */
g_free (current_return_vals);
}
else
{
/* Just return a dummy set of values. */
return_vals = procedural_db_return_args (proc_rec, FALSE);
}
/* We have consumed any saved values, so clear them. */
current_return_nvals = 0;
current_return_vals = NULL;
return return_vals;
}
Argument*
plug_in_run (ProcRecord *proc_rec,
Argument *args,
int argc,
int synchronous,
int destroy_values,
int gdisp_ID)
{
GPConfig config;
GPProcRun proc_run;
Argument *return_vals;
PlugIn *plug_in;
return_vals = NULL;
if (proc_rec->proc_type == PDB_TEMPORARY)
{
return_vals = plug_in_temp_run (proc_rec, args, argc);
goto done;
}
plug_in = plug_in_new (proc_rec->exec_method.plug_in.filename);
if (plug_in)
{
if (plug_in_open (plug_in))
{
plug_in->recurse = synchronous;
plug_in_push (plug_in);
config.version = GP_VERSION;
config.tile_width = TILE_WIDTH;
config.tile_height = TILE_HEIGHT;
config.shm_ID = shm_ID;
config.gamma = gamma_val;
config.install_cmap = install_cmap;
config.use_xshm = gdk_get_use_xshm ();
config.color_cube[0] = color_cube_shades[0];
config.color_cube[1] = color_cube_shades[1];
config.color_cube[2] = color_cube_shades[2];
config.color_cube[3] = color_cube_shades[3];
config.gdisp_ID = gdisp_ID;
proc_run.name = proc_rec->name;
proc_run.nparams = argc;
proc_run.params = plug_in_args_to_params (args, argc, FALSE);
if (!gp_config_write (current_writefd, &config) ||
!gp_proc_run_write (current_writefd, &proc_run) ||
!wire_flush (current_writefd))
{
return_vals = procedural_db_return_args (proc_rec, FALSE);
goto done;
}
plug_in_pop ();
plug_in_params_destroy (proc_run.params, proc_run.nparams, FALSE);
/*
* If this is an automatically installed extension, wait for an
* installation-confirmation message
*/
if ((proc_rec->proc_type == PDB_EXTENSION) && (proc_rec->num_args == 0))
gtk_main ();
if (plug_in->recurse)
{
gtk_main ();
return_vals = plug_in_get_current_return_vals (proc_rec);
}
}
}
done:
if (return_vals && destroy_values)
{
procedural_db_destroy_args (return_vals, proc_rec->num_values);
return_vals = NULL;
}
return return_vals;
}
void
plug_in_repeat (int with_interface)
{
GDisplay *gdisplay;
Argument *args;
int i;
if (last_plug_in)
{
gdisplay = gdisplay_active ();
/* construct the procedures arguments */
args = g_new (Argument, 3);
/* initialize the first three argument types */
for (i = 0; i < 3; i++)
args[i].arg_type = last_plug_in->args[i].arg_type;
/* initialize the first three plug-in arguments */
args[0].value.pdb_int = (with_interface ? RUN_INTERACTIVE : RUN_WITH_LAST_VALS);
args[1].value.pdb_int = pdb_image_to_id(gdisplay->gimage);
args[2].value.pdb_int = drawable_ID (gimage_active_drawable (gdisplay->gimage));
/* run the plug-in procedure */
plug_in_run (last_plug_in, args, 3, FALSE, TRUE, gdisplay->ID);
g_free (args);
}
}
void
plug_in_set_menu_sensitivity (int base_type)
{
PlugInProcDef *proc_def;
GSList *tmp;
int sensitive = FALSE;
tmp = proc_defs;
while (tmp)
{
proc_def = tmp->data;
tmp = tmp->next;
if (proc_def->image_types_val && proc_def->menu_path)
{
switch (base_type)
{
case -1:
sensitive = FALSE;
break;
case RGB_GIMAGE:
sensitive = proc_def->image_types_val & RGB_IMAGE;
break;
case RGBA_GIMAGE:
sensitive = proc_def->image_types_val & RGBA_IMAGE;
break;
case GRAY_GIMAGE:
sensitive = proc_def->image_types_val & GRAY_IMAGE;
break;
case GRAYA_GIMAGE:
sensitive = proc_def->image_types_val & GRAYA_IMAGE;
break;
case INDEXED_GIMAGE:
sensitive = proc_def->image_types_val & INDEXED_IMAGE;
break;
case INDEXEDA_GIMAGE:
sensitive = proc_def->image_types_val & INDEXEDA_IMAGE;
break;
}
menus_set_sensitive (proc_def->menu_path, sensitive);
if (last_plug_in && (last_plug_in == &(proc_def->db_info)))
{
menus_set_sensitive (_("<Image>/Filters/Repeat last"), sensitive);
menus_set_sensitive (_("<Image>/Filters/Re-show last"), sensitive);
}
}
}
}
static void
plug_in_recv_message (gpointer data,
gint id,
GdkInputCondition cond)
{
WireMessage msg;
plug_in_push ((PlugIn*) data);
memset (&msg, 0, sizeof (WireMessage));
if (!wire_read_msg (current_readfd, &msg))
plug_in_close (current_plug_in, TRUE);
else
{
plug_in_handle_message (&msg);
wire_destroy (&msg);
}
if (!current_plug_in->open)
plug_in_destroy (current_plug_in);
else
plug_in_pop ();
}
static void
plug_in_handle_message (WireMessage *msg)
{
switch (msg->type)
{
case GP_QUIT:
plug_in_handle_quit ();
break;
case GP_CONFIG:
g_message (_("plug_in_handle_message(): received a config message (should not happen)\n"));
plug_in_close (current_plug_in, TRUE);
break;
case GP_TILE_REQ:
plug_in_handle_tile_req (msg->data);
break;
case GP_TILE_ACK:
g_message (_("plug_in_handle_message(): received a config message (should not happen)\n"));
plug_in_close (current_plug_in, TRUE);
break;
case GP_TILE_DATA:
g_message (_("plug_in_handle_message(): received a config message (should not happen)\n"));
plug_in_close (current_plug_in, TRUE);
break;
case GP_PROC_RUN:
plug_in_handle_proc_run (msg->data);
break;
case GP_PROC_RETURN:
plug_in_handle_proc_return (msg->data);
plug_in_close (current_plug_in, FALSE);
break;
case GP_TEMP_PROC_RUN:
g_message (_("plug_in_handle_message(): received a temp proc run message (should not happen)\n"));
plug_in_close (current_plug_in, TRUE);
break;
case GP_TEMP_PROC_RETURN:
plug_in_handle_proc_return (msg->data);
gtk_main_quit ();
break;
case GP_PROC_INSTALL:
plug_in_handle_proc_install (msg->data);
break;
case GP_PROC_UNINSTALL:
plug_in_handle_proc_uninstall (msg->data);
break;
case GP_EXTENSION_ACK:
gtk_main_quit ();
break;
}
}
static void
plug_in_handle_quit ()
{
plug_in_close (current_plug_in, FALSE);
}
static void
plug_in_handle_tile_req (GPTileReq *tile_req)
{
GPTileData tile_data;
GPTileData *tile_info;
WireMessage msg;
TileManager *tm;
Tile *tile;
if (tile_req->drawable_ID == -1)
{
tile_data.drawable_ID = -1;
tile_data.tile_num = 0;
tile_data.shadow = 0;
tile_data.bpp = 0;
tile_data.width = 0;
tile_data.height = 0;
tile_data.use_shm = (shm_ID == -1) ? FALSE : TRUE;
tile_data.data = NULL;
if (!gp_tile_data_write (current_writefd, &tile_data))
{
g_message (_("plug_in_handle_tile_req: ERROR"));
plug_in_close (current_plug_in, TRUE);
return;
}
if (!wire_read_msg (current_readfd, &msg))
{
g_message (_("plug_in_handle_tile_req: ERROR"));
plug_in_close (current_plug_in, TRUE);
return;
}
if (msg.type != GP_TILE_DATA)
{
g_message (_("expected tile data and received: %d\n"), msg.type);
plug_in_close (current_plug_in, TRUE);
return;
}
tile_info = msg.data;
if (tile_info->shadow)
tm = drawable_shadow (drawable_get_ID (tile_info->drawable_ID));
else
tm = drawable_data (drawable_get_ID (tile_info->drawable_ID));
if (!tm)
{
g_message (_("plug-in requested invalid drawable (killing)\n"));
plug_in_close (current_plug_in, TRUE);
return;
}
tile = tile_manager_get (tm, tile_info->tile_num, TRUE, TRUE);
if (!tile)
{
g_message (_("plug-in requested invalid tile (killing)\n"));
plug_in_close (current_plug_in, TRUE);
return;
}
if (tile_data.use_shm)
memcpy (tile_data_pointer (tile, 0, 0), shm_addr, tile_size (tile));
else
memcpy (tile_data_pointer (tile, 0, 0), tile_info->data, tile_size (tile));
tile_release (tile, TRUE);
wire_destroy (&msg);
if (!gp_tile_ack_write (current_writefd))
{
g_message (_("plug_in_handle_tile_req: ERROR"));
plug_in_close (current_plug_in, TRUE);
return;
}
}
else
{
if (tile_req->shadow)
tm = drawable_shadow (drawable_get_ID (tile_req->drawable_ID));
else
tm = drawable_data (drawable_get_ID (tile_req->drawable_ID));
if (!tm)
{
g_message (_("plug-in requested invalid drawable (killing)\n"));
plug_in_close (current_plug_in, TRUE);
return;
}
tile = tile_manager_get (tm, tile_req->tile_num, TRUE, FALSE);
if (!tile)
{
g_message (_("plug-in requested invalid tile (killing)\n"));
plug_in_close (current_plug_in, TRUE);
return;
}
tile_data.drawable_ID = tile_req->drawable_ID;
tile_data.tile_num = tile_req->tile_num;
tile_data.shadow = tile_req->shadow;
tile_data.bpp = tile_bpp(tile);
tile_data.width = tile_ewidth(tile);
tile_data.height = tile_eheight(tile);
tile_data.use_shm = (shm_ID == -1) ? FALSE : TRUE;
if (tile_data.use_shm)
memcpy (shm_addr, tile_data_pointer (tile, 0, 0), tile_size (tile));
else
tile_data.data = tile_data_pointer (tile, 0, 0);
if (!gp_tile_data_write (current_writefd, &tile_data))
{
g_message (_("plug_in_handle_tile_req: ERROR"));
plug_in_close (current_plug_in, TRUE);
return;
}
tile_release (tile, FALSE);
if (!wire_read_msg (current_readfd, &msg))
{
g_message (_("plug_in_handle_tile_req: ERROR"));
plug_in_close (current_plug_in, TRUE);
return;
}
if (msg.type != GP_TILE_ACK)
{
g_message (_("expected tile ack and received: %d\n"), msg.type);
plug_in_close (current_plug_in, TRUE);
return;
}
wire_destroy (&msg);
}
}
static void
plug_in_handle_proc_run (GPProcRun *proc_run)
{
GPProcReturn proc_return;
ProcRecord *proc_rec;
Argument *args;
Argument *return_vals;
PlugInBlocked *blocked;
args = plug_in_params_to_args (proc_run->params, proc_run->nparams, FALSE);
proc_rec = procedural_db_lookup (proc_run->name);
if (!proc_rec)
{
/* THIS IS PROBABLY NOT CORRECT -josh */
g_message (_("PDB lookup failed on %s\n"), proc_run->name);
plug_in_args_destroy (args, proc_run->nparams, FALSE);
return;
}
return_vals = procedural_db_execute (proc_run->name, args);
if (return_vals)
{
proc_return.name = proc_run->name;
if (proc_rec)
{
proc_return.nparams = proc_rec->num_values + 1;
proc_return.params = plug_in_args_to_params (return_vals, proc_rec->num_values + 1, FALSE);
}
else
{
proc_return.nparams = 1;
proc_return.params = plug_in_args_to_params (return_vals, 1, FALSE);
}
if (!gp_proc_return_write (current_writefd, &proc_return))
{
g_message (_("plug_in_handle_proc_run: ERROR"));
plug_in_close (current_plug_in, TRUE);
return;
}
plug_in_args_destroy (args, proc_run->nparams, FALSE);
plug_in_args_destroy (return_vals, (proc_rec ? (proc_rec->num_values + 1) : 1), TRUE);
plug_in_params_destroy (proc_return.params, proc_return.nparams, FALSE);
}
else
{
blocked = g_new (PlugInBlocked, 1);
blocked->plug_in = current_plug_in;
blocked->proc_name = g_strdup (proc_run->name);
blocked_plug_ins = g_slist_prepend (blocked_plug_ins, blocked);
}
}
static void
plug_in_handle_proc_return (GPProcReturn *proc_return)
{
PlugInBlocked *blocked;
GSList *tmp;
if (current_plug_in->recurse)
{
current_return_vals = plug_in_params_to_args (proc_return->params,
proc_return->nparams,
TRUE);
current_return_nvals = proc_return->nparams;
}
else
{
tmp = blocked_plug_ins;
while (tmp)
{
blocked = tmp->data;
tmp = tmp->next;
if (strcmp (blocked->proc_name, proc_return->name) == 0)
{
plug_in_push (blocked->plug_in);
if (!gp_proc_return_write (current_writefd, proc_return))
{
g_message (_("plug_in_handle_proc_run: ERROR"));
plug_in_close (current_plug_in, TRUE);
return;
}
plug_in_pop ();
blocked_plug_ins = g_slist_remove (blocked_plug_ins, blocked);
g_free (blocked->proc_name);
g_free (blocked);
break;
}
}
}
}
static void
plug_in_handle_proc_install (GPProcInstall *proc_install)
{
PlugInDef *plug_in_def = NULL;
PlugInProcDef *proc_def;
ProcRecord *proc = NULL;
GSList *tmp = NULL;
GtkMenuEntry entry;
char *prog = NULL;
int add_proc_def;
int i;
/*
* Argument checking
* --only sanity check arguments when the procedure requests a menu path
*/
if (proc_install->menu_path)
{
if (strncmp (proc_install->menu_path, "<Toolbox>", 9) == 0)
{
if ((proc_install->nparams < 1) ||
(proc_install->params[0].type != PDB_INT32))
{
g_message (_("plug-in \"%s\" attempted to install procedure \"%s\" which "
"does not take the standard plug-in args"),
current_plug_in->args[0], proc_install->name);
return;
}
}
else if (strncmp (proc_install->menu_path, "<Image>", 7) == 0)
{
if ((proc_install->nparams < 3) ||
(proc_install->params[0].type != PDB_INT32) ||
(proc_install->params[1].type != PDB_IMAGE) ||
(proc_install->params[2].type != PDB_DRAWABLE))
{
g_message (_("plug-in \"%s\" attempted to install procedure \"%s\" which "
"does not take the standard plug-in args"),
current_plug_in->args[0], proc_install->name);
return;
}
}
else if (strncmp (proc_install->menu_path, "<Load>", 6) == 0)
{
if ((proc_install->nparams < 3) ||
(proc_install->params[0].type != PDB_INT32) ||
(proc_install->params[1].type != PDB_STRING) ||
(proc_install->params[2].type != PDB_STRING))
{
g_message (_("plug-in \"%s\" attempted to install procedure \"%s\" which "
"does not take the standard plug-in args"),
current_plug_in->args[0], proc_install->name);
return;
}
}
else if (strncmp (proc_install->menu_path, "<Save>", 6) == 0)
{
if ((proc_install->nparams < 5) ||
(proc_install->params[0].type != PDB_INT32) ||
(proc_install->params[1].type != PDB_IMAGE) ||
(proc_install->params[2].type != PDB_DRAWABLE) ||
(proc_install->params[3].type != PDB_STRING) ||
(proc_install->params[4].type != PDB_STRING))
{
g_message (_("plug-in \"%s\" attempted to install procedure \"%s\" which "
"does not take the standard plug-in args"),
current_plug_in->args[0], proc_install->name);
return;
}
}
else
{
g_message (_("plug-in \"%s\" attempted to install procedure \"%s\" in "
"an invalid menu location. Use either \"<Toolbox>\", \"<Image>\", "
"\"<Load>\", or \"<Save>\"."),
current_plug_in->args[0], proc_install->name);
return;
}
}
/*
* Sanity check for array arguments
*/
for (i = 1; i < proc_install->nparams; i++)
{
if ((proc_install->params[i].type == PDB_INT32ARRAY ||
proc_install->params[i].type == PDB_INT8ARRAY ||
proc_install->params[i].type == PDB_FLOATARRAY ||
proc_install->params[i].type == PDB_STRINGARRAY) &&
proc_install->params[i-1].type != PDB_INT32)
{
g_message (_("plug_in \"%s\" attempted to install procedure \"%s\" "
"which fails to comply with the array parameter "
"passing standard. Argument %d is noncompliant."),
current_plug_in->args[0], proc_install->name, i);
return;
}
}
/*
* Initialization
*/
proc_def = NULL;
switch (proc_install->type)
{
case PDB_PLUGIN:
case PDB_EXTENSION:
plug_in_def = current_plug_in->user_data;
prog = plug_in_def->prog;
tmp = plug_in_def->proc_defs;
break;
case PDB_TEMPORARY:
prog = "none";
tmp = current_plug_in->temp_proc_defs;
break;
}
while (tmp)
{
proc_def = tmp->data;
tmp = tmp->next;
if (strcmp (proc_def->db_info.name, proc_install->name) == 0)
{
if (proc_install->type == PDB_TEMPORARY)
plug_in_proc_def_remove (proc_def);
else
plug_in_proc_def_destroy (proc_def, TRUE);
break;
}
proc_def = NULL;
}
add_proc_def = FALSE;
if (!proc_def)
{
add_proc_def = TRUE;
proc_def = g_new (PlugInProcDef, 1);
}
proc_def->prog = g_strdup (prog);
proc_def->menu_path = g_strdup (proc_install->menu_path);
proc_def->accelerator = NULL;
proc_def->extensions = NULL;
proc_def->prefixes = NULL;
proc_def->magics = NULL;
proc_def->image_types = g_strdup (proc_install->image_types);
proc_def->image_types_val = plug_in_image_types_parse (proc_def->image_types);
proc = &proc_def->db_info;
/*
* The procedural database procedure
*/
proc->name = g_strdup (proc_install->name);
proc->blurb = g_strdup (proc_install->blurb);
proc->help = g_strdup (proc_install->help);
proc->author = g_strdup (proc_install->author);
proc->copyright = g_strdup (proc_install->copyright);
proc->date = g_strdup (proc_install->date);
proc->proc_type = proc_install->type;
proc->num_args = proc_install->nparams;
proc->num_values = proc_install->nreturn_vals;
proc->args = g_new (ProcArg, proc->num_args);
proc->values = g_new (ProcArg, proc->num_values);
for (i = 0; i < proc->num_args; i++)
{
proc->args[i].arg_type = proc_install->params[i].type;
proc->args[i].name = g_strdup (proc_install->params[i].name);
proc->args[i].description = g_strdup (proc_install->params[i].description);
}
for (i = 0; i < proc->num_values; i++)
{
proc->values[i].arg_type = proc_install->return_vals[i].type;
proc->values[i].name = g_strdup (proc_install->return_vals[i].name);
proc->values[i].description = g_strdup (proc_install->return_vals[i].description);
}
switch (proc_install->type)
{
case PDB_PLUGIN:
case PDB_EXTENSION:
if (add_proc_def)
plug_in_def->proc_defs = g_slist_prepend (plug_in_def->proc_defs, proc_def);
break;
case PDB_TEMPORARY:
if (add_proc_def)
current_plug_in->temp_proc_defs = g_slist_prepend (current_plug_in->temp_proc_defs, proc_def);
proc_defs = g_slist_append (proc_defs, proc_def);
proc->exec_method.temporary.plug_in = (void *) current_plug_in;
procedural_db_register (proc);
/* If there is a menu path specified, create a menu entry */
if (proc_install->menu_path)
{
entry.path = proc_install->menu_path;
entry.accelerator = NULL;
entry.callback = plug_in_callback;
entry.callback_data = proc;
menus_create (&entry, 1);
}
break;
}
}
static void
plug_in_handle_proc_uninstall (GPProcUninstall *proc_uninstall)
{
PlugInProcDef *proc_def;
GSList *tmp;
tmp = current_plug_in->temp_proc_defs;
while (tmp)
{
proc_def = tmp->data;
tmp = tmp->next;
if (strcmp (proc_def->db_info.name, proc_uninstall->name) == 0)
{
current_plug_in->temp_proc_defs = g_slist_remove (current_plug_in->temp_proc_defs, proc_def);
plug_in_proc_def_remove (proc_def);
break;
}
}
}
static int
plug_in_write (int fd,
guint8 *buf,
gulong count)
{
gulong bytes;
while (count > 0)
{
if ((current_write_buffer_index + count) >= WRITE_BUFFER_SIZE)
{
bytes = WRITE_BUFFER_SIZE - current_write_buffer_index;
memcpy (&current_write_buffer[current_write_buffer_index], buf, bytes);
current_write_buffer_index += bytes;
if (!wire_flush (fd))
return FALSE;
}
else
{
bytes = count;
memcpy (&current_write_buffer[current_write_buffer_index], buf, bytes);
current_write_buffer_index += bytes;
}
buf += bytes;
count -= bytes;
}
return TRUE;
}
static int
plug_in_flush (int fd)
{
int count;
int bytes;
if (current_write_buffer_index > 0)
{
count = 0;
while (count != current_write_buffer_index)
{
do {
bytes = write (fd, &current_write_buffer[count],
(current_write_buffer_index - count));
} while ((bytes == -1) && (errno == EAGAIN));
if (bytes == -1)
return FALSE;
count += bytes;
}
current_write_buffer_index = 0;
}
return TRUE;
}
static void
plug_in_push (PlugIn *plug_in)
{
if (plug_in)
{
current_plug_in = plug_in;
plug_in_stack = g_slist_prepend (plug_in_stack, current_plug_in);
current_readfd = current_plug_in->my_read;
current_writefd = current_plug_in->my_write;
current_write_buffer_index = current_plug_in->write_buffer_index;
current_write_buffer = current_plug_in->write_buffer;
}
else
{
current_readfd = 0;
current_writefd = 0;
current_write_buffer_index = 0;
current_write_buffer = NULL;
}
}
static void
plug_in_pop ()
{
GSList *tmp;
if (current_plug_in)
{
current_plug_in->write_buffer_index = current_write_buffer_index;
tmp = plug_in_stack;
plug_in_stack = plug_in_stack->next;
tmp->next = NULL;
g_slist_free (tmp);
}
if (plug_in_stack)
{
current_plug_in = plug_in_stack->data;
current_readfd = current_plug_in->my_read;
current_writefd = current_plug_in->my_write;
current_write_buffer_index = current_plug_in->write_buffer_index;
current_write_buffer = current_plug_in->write_buffer;
}
else
{
current_plug_in = NULL;
current_readfd = 0;
current_writefd = 0;
current_write_buffer_index = 0;
current_write_buffer = NULL;
}
}
static void
plug_in_write_rc_string (FILE *fp,
char *str)
{
fputc ('"', fp);
if (str)
while (*str)
{
if ((*str == '"') || (*str == '\\'))
fputc ('\\', fp);
fputc (*str, fp);
str += 1;
}
fputc ('"', fp);
}
static void
plug_in_write_rc (char *filename)
{
FILE *fp;
PlugInDef *plug_in_def;
PlugInProcDef *proc_def;
GSList *tmp, *tmp2;
int i;
fp = fopen (filename, "wb");
if (!fp)
return;
tmp = plug_in_defs;
while (tmp)
{
plug_in_def = tmp->data;
tmp = tmp->next;
if (plug_in_def->proc_defs)
{
fprintf (fp, "(plug-in-def \"%s\" %ld",
plug_in_def->prog,
(long) plug_in_def->mtime);
tmp2 = plug_in_def->proc_defs;
if (tmp2)
fprintf (fp, "\n");
while (tmp2)
{
proc_def = tmp2->data;
tmp2 = tmp2->next;
fprintf (fp, " (proc-def \"%s\" %d\n",
proc_def->db_info.name, proc_def->db_info.proc_type);
fprintf (fp, " ");
plug_in_write_rc_string (fp, proc_def->db_info.blurb);
fprintf (fp, "\n ");
plug_in_write_rc_string (fp, proc_def->db_info.help);
fprintf (fp, "\n ");
plug_in_write_rc_string (fp, proc_def->db_info.author);
fprintf (fp, "\n ");
plug_in_write_rc_string (fp, proc_def->db_info.copyright);
fprintf (fp, "\n ");
plug_in_write_rc_string (fp, proc_def->db_info.date);
fprintf (fp, "\n ");
plug_in_write_rc_string (fp, proc_def->menu_path);
fprintf (fp, "\n ");
plug_in_write_rc_string (fp, proc_def->extensions);
fprintf (fp, "\n ");
plug_in_write_rc_string (fp, proc_def->prefixes);
fprintf (fp, "\n ");
plug_in_write_rc_string (fp, proc_def->magics);
fprintf (fp, "\n ");
plug_in_write_rc_string (fp, proc_def->image_types);
fprintf (fp, "\n %d %d\n",
proc_def->db_info.num_args, proc_def->db_info.num_values);
for (i = 0; i < proc_def->db_info.num_args; i++)
{
fprintf (fp, " (proc-arg %d ",
proc_def->db_info.args[i].arg_type);
plug_in_write_rc_string (fp, proc_def->db_info.args[i].name);
plug_in_write_rc_string (fp, proc_def->db_info.args[i].description);
fprintf (fp, ")%s",
(proc_def->db_info.num_values ||
(i < (proc_def->db_info.num_args - 1))) ? "\n" : "");
}
for (i = 0; i < proc_def->db_info.num_values; i++)
{
fprintf (fp, " (proc-arg %d ",
proc_def->db_info.values[i].arg_type);
plug_in_write_rc_string (fp, proc_def->db_info.values[i].name);
plug_in_write_rc_string (fp, proc_def->db_info.values[i].description);
fprintf (fp, ")%s", (i < (proc_def->db_info.num_values - 1)) ? "\n" : "");
}
fprintf (fp, ")");
if (tmp2)
fprintf (fp, "\n");
}
fprintf (fp, ")\n");
if (tmp)
fprintf (fp, "\n");
}
}
fclose (fp);
}
static void
plug_in_init_file (char *filename)
{
GSList *tmp;
PlugInDef *plug_in_def;
char *plug_in_name;
char *name;
name = strrchr (filename, '/');
if (name)
name = name + 1;
else
name = filename;
plug_in_def = NULL;
tmp = plug_in_defs;
while (tmp)
{
plug_in_def = tmp->data;
tmp = tmp->next;
plug_in_name = strrchr (plug_in_def->prog, '/');
if (plug_in_name)
plug_in_name = plug_in_name + 1;
else
plug_in_name = plug_in_def->prog;
if (strcmp (name, plug_in_name) == 0)
{
g_print (_("duplicate plug-in: \"%s\" (skipping)\n"), filename);
return;
}
plug_in_def = NULL;
}
plug_in_def = g_new (PlugInDef, 1);
plug_in_def->prog = g_strdup (filename);
plug_in_def->proc_defs = NULL;
plug_in_def->mtime = datafile_mtime ();
plug_in_def->query = TRUE;
plug_in_defs = g_slist_append (plug_in_defs, plug_in_def);
}
static void
plug_in_query (char *filename,
PlugInDef *plug_in_def)
{
PlugIn *plug_in;
WireMessage msg;
plug_in = plug_in_new (filename);
if (plug_in)
{
plug_in->query = TRUE;
plug_in->synchronous = TRUE;
plug_in->user_data = plug_in_def;
if (plug_in_open (plug_in))
{
plug_in_push (plug_in);
while (plug_in->open)
{
if (!wire_read_msg (current_readfd, &msg))
plug_in_close (current_plug_in, TRUE);
else
{
plug_in_handle_message (&msg);
wire_destroy (&msg);
}
}
plug_in_pop ();
plug_in_destroy (plug_in);
}
}
}
static void
plug_in_add_to_db ()
{
PlugInProcDef *proc_def;
Argument args[4];
Argument *return_vals;
GSList *tmp;
tmp = proc_defs;
while (tmp)
{
proc_def = tmp->data;
tmp = tmp->next;
if (proc_def->prog && (proc_def->db_info.proc_type != PDB_INTERNAL))
{
proc_def->db_info.exec_method.plug_in.filename = proc_def->prog;
procedural_db_register (&proc_def->db_info);
}
}
for (tmp = proc_defs; tmp; tmp = tmp->next)
{
proc_def = tmp->data;
if (proc_def->extensions || proc_def->prefixes || proc_def->magics)
{
args[0].arg_type = PDB_STRING;
args[0].value.pdb_pointer = proc_def->db_info.name;
args[1].arg_type = PDB_STRING;
args[1].value.pdb_pointer = proc_def->extensions;
args[2].arg_type = PDB_STRING;
args[2].value.pdb_pointer = proc_def->prefixes;
args[3].arg_type = PDB_STRING;
args[3].value.pdb_pointer = proc_def->magics;
if (proc_def->image_types)
{
return_vals = procedural_db_execute ("gimp_register_save_handler", args);
g_free (return_vals);
}
else
{
return_vals = procedural_db_execute ("gimp_register_magic_load_handler", args);
g_free (return_vals);
}
}
}
}
static void
plug_in_make_menu ()
{
GtkMenuEntry entry;
PlugInProcDef *proc_def;
GSList *tmp;
tmp = proc_defs;
while (tmp)
{
proc_def = tmp->data;
tmp = tmp->next;
if (proc_def->prog && proc_def->menu_path && (!proc_def->extensions &&
!proc_def->prefixes &&
!proc_def->magics))
{
entry.path = proc_def->menu_path;
entry.accelerator = proc_def->accelerator;
entry.callback = plug_in_callback;
entry.callback_data = &proc_def->db_info;
menus_create (&entry, 1);
}
}
}
static void
plug_in_callback (GtkWidget *widget,
gpointer client_data)
{
GDisplay *gdisplay;
ProcRecord *proc_rec;
Argument *args;
int i;
int gdisp_ID = -1;
int argc = 0; /* calm down a gcc warning. */
/* get the active gdisplay */
gdisplay = gdisplay_active ();
proc_rec = (ProcRecord*) client_data;
/* construct the procedures arguments */
args = g_new (Argument, proc_rec->num_args);
memset (args, 0, (sizeof (Argument) * proc_rec->num_args));
/* initialize the argument types */
for (i = 0; i < proc_rec->num_args; i++)
args[i].arg_type = proc_rec->args[i].arg_type;
switch (proc_rec->proc_type)
{
case PDB_EXTENSION:
/* initialize the first argument */
args[0].value.pdb_int = RUN_INTERACTIVE;
argc = 1;
break;
case PDB_PLUGIN:
if (gdisplay)
{
gdisp_ID = gdisplay->ID;
/* initialize the first 3 plug-in arguments */
args[0].value.pdb_int = RUN_INTERACTIVE;
args[1].value.pdb_int = pdb_image_to_id(gdisplay->gimage);
args[2].value.pdb_int = drawable_ID (gimage_active_drawable (gdisplay->gimage));
argc = 3;
}
else
{
g_message (_("Uh-oh, no active gdisplay for the plug-in!"));
g_free (args);
return;
}
break;
case PDB_TEMPORARY:
args[0].value.pdb_int = RUN_INTERACTIVE;
argc = 1;
if (proc_rec->num_args >= 3 &&
proc_rec->args[1].arg_type == PDB_IMAGE &&
proc_rec->args[2].arg_type == PDB_DRAWABLE)
{
if (gdisplay)
{
gdisp_ID = gdisplay->ID;
args[1].value.pdb_int = pdb_image_to_id(gdisplay->gimage);
args[2].value.pdb_int = drawable_ID (gimage_active_drawable (gdisplay->gimage));
argc = 3;
}
else
{
g_message (_("Uh-oh, no active gdisplay for the temporary procedure!"));
g_free (args);
return;
}
}
break;
default:
g_error (_("Unknown procedure type."));
g_free (args);
return;
}
/* run the plug-in procedure */
plug_in_run (proc_rec, args, argc, FALSE, TRUE, gdisp_ID);
if (proc_rec->proc_type == PDB_PLUGIN)
last_plug_in = proc_rec;
g_free (args);
}
static void
plug_in_proc_def_insert (PlugInProcDef *proc_def)
{
PlugInProcDef *tmp_proc_def;
GSList *tmp, *prev;
GSList *list;
prev = NULL;
tmp = proc_defs;
while (tmp)
{
tmp_proc_def = tmp->data;
if (strcmp (proc_def->db_info.name, tmp_proc_def->db_info.name) == 0)
{
tmp->data = proc_def;
if (proc_def->menu_path)
g_free (proc_def->menu_path);
if (proc_def->accelerator)
g_free (proc_def->accelerator);
proc_def->menu_path = tmp_proc_def->menu_path;
proc_def->accelerator = tmp_proc_def->accelerator;
tmp_proc_def->menu_path = NULL;
tmp_proc_def->accelerator = NULL;
plug_in_proc_def_destroy (tmp_proc_def, FALSE);
return;
}
else if (!proc_def->menu_path ||
(tmp_proc_def->menu_path &&
(strcmp (proc_def->menu_path, tmp_proc_def->menu_path) < 0)))
{
list = g_slist_alloc ();
list->data = proc_def;
list->next = tmp;
if (prev)
prev->next = list;
else
proc_defs = list;
return;
}
prev = tmp;
tmp = tmp->next;
}
proc_defs = g_slist_append (proc_defs, proc_def);
}
static void
plug_in_proc_def_remove (PlugInProcDef *proc_def)
{
/* Destroy the menu item */
if (proc_def->menu_path)
menus_destroy (proc_def->menu_path);
/* Unregister the procedural database entry */
procedural_db_unregister (proc_def->db_info.name);
/* Remove the defintion from the global list */
proc_defs = g_slist_remove (proc_defs, proc_def);
/* Destroy the definition */
plug_in_proc_def_destroy (proc_def, TRUE);
}
static void
plug_in_proc_def_destroy (PlugInProcDef *proc_def,
int data_only)
{
int i;
if (proc_def->prog)
g_free (proc_def->prog);
if (proc_def->menu_path)
g_free (proc_def->menu_path);
if (proc_def->accelerator)
g_free (proc_def->accelerator);
if (proc_def->extensions)
g_free (proc_def->extensions);
if (proc_def->prefixes)
g_free (proc_def->prefixes);
if (proc_def->magics)
g_free (proc_def->magics);
if (proc_def->image_types)
g_free (proc_def->image_types);
if (proc_def->db_info.name)
g_free (proc_def->db_info.name);
if (proc_def->db_info.blurb)
g_free (proc_def->db_info.blurb);
if (proc_def->db_info.help)
g_free (proc_def->db_info.help);
if (proc_def->db_info.author)
g_free (proc_def->db_info.author);
if (proc_def->db_info.copyright)
g_free (proc_def->db_info.copyright);
if (proc_def->db_info.date)
g_free (proc_def->db_info.date);
for (i = 0; i < proc_def->db_info.num_args; i++)
{
if (proc_def->db_info.args[i].name)
g_free (proc_def->db_info.args[i].name);
if (proc_def->db_info.args[i].description)
g_free (proc_def->db_info.args[i].description);
}
for (i = 0; i < proc_def->db_info.num_values; i++)
{
if (proc_def->db_info.values[i].name)
g_free (proc_def->db_info.values[i].name);
if (proc_def->db_info.values[i].description)
g_free (proc_def->db_info.values[i].description);
}
if (proc_def->db_info.args)
g_free (proc_def->db_info.args);
if (proc_def->db_info.values)
g_free (proc_def->db_info.values);
if (!data_only)
g_free (proc_def);
}
static Argument *
plug_in_temp_run (ProcRecord *proc_rec,
Argument *args,
int argc)
{
Argument *return_vals;
PlugIn *plug_in;
GPProcRun proc_run;
gint old_recurse;
return_vals = NULL;
plug_in = (PlugIn *) proc_rec->exec_method.temporary.plug_in;
if (plug_in)
{
if (plug_in->busy)
{
return_vals = procedural_db_return_args (proc_rec, FALSE);
goto done;
}
plug_in->busy = TRUE;
plug_in_push (plug_in);
proc_run.name = proc_rec->name;
proc_run.nparams = argc;
proc_run.params = plug_in_args_to_params (args, argc, FALSE);
if (!gp_temp_proc_run_write (current_writefd, &proc_run) ||
!wire_flush (current_writefd))
{
return_vals = procedural_db_return_args (proc_rec, FALSE);
goto done;
}
/* plug_in_pop (); */
plug_in_params_destroy (proc_run.params, proc_run.nparams, FALSE);
old_recurse = plug_in->recurse;
plug_in->recurse = TRUE;
/* gtk_main (); */
/* return_vals = plug_in_get_current_return_vals (proc_rec); */
return_vals = procedural_db_return_args (proc_rec, TRUE);
plug_in->recurse = old_recurse;
plug_in->busy = FALSE;
}
done:
return return_vals;
}
static Argument*
plug_in_params_to_args (GPParam *params,
int nparams,
int full_copy)
{
Argument *args;
gchar **stringarray;
guchar *colorarray;
int count;
int i, j;
if (nparams == 0)
return NULL;
args = g_new (Argument, nparams);
for (i = 0; i < nparams; i++)
{
args[i].arg_type = params[i].type;
switch (args[i].arg_type)
{
case PDB_INT32:
args[i].value.pdb_int = params[i].data.d_int32;
break;
case PDB_INT16:
args[i].value.pdb_int = params[i].data.d_int16;
break;
case PDB_INT8:
args[i].value.pdb_int = params[i].data.d_int8;
break;
case PDB_FLOAT:
args[i].value.pdb_float = params[i].data.d_float;
break;
case PDB_STRING:
if (full_copy)
args[i].value.pdb_pointer = g_strdup (params[i].data.d_string);
else
args[i].value.pdb_pointer = params[i].data.d_string;
break;
case PDB_INT32ARRAY:
if (full_copy)
{
count = args[i-1].value.pdb_int;
args[i].value.pdb_pointer = g_new (gint32, count);
memcpy (args[i].value.pdb_pointer, params[i].data.d_int32array, count * 4);
}
else
{
args[i].value.pdb_pointer = params[i].data.d_int32array;
}
break;
case PDB_INT16ARRAY:
if (full_copy)
{
count = args[i-1].value.pdb_int;
args[i].value.pdb_pointer = g_new (gint16, count);
memcpy (args[i].value.pdb_pointer, params[i].data.d_int16array, count * 2);
}
else
{
args[i].value.pdb_pointer = params[i].data.d_int16array;
}
break;
case PDB_INT8ARRAY:
if (full_copy)
{
count = args[i-1].value.pdb_int;
args[i].value.pdb_pointer = g_new (gint8, count);
memcpy (args[i].value.pdb_pointer, params[i].data.d_int8array, count);
}
else
{
args[i].value.pdb_pointer = params[i].data.d_int8array;
}
break;
case PDB_FLOATARRAY:
if (full_copy)
{
count = args[i-1].value.pdb_int;
args[i].value.pdb_pointer = g_new (gdouble, count);
memcpy (args[i].value.pdb_pointer, params[i].data.d_floatarray, count * 8);
}
else
{
args[i].value.pdb_pointer = params[i].data.d_floatarray;
}
break;
case PDB_STRINGARRAY:
if (full_copy)
{
args[i].value.pdb_pointer = g_new (gchar*, args[i-1].value.pdb_int);
stringarray = args[i].value.pdb_pointer;
for (j = 0; j < args[i-1].value.pdb_int; j++)
stringarray[j] = g_strdup (params[i].data.d_stringarray[j]);
}
else
{
args[i].value.pdb_pointer = params[i].data.d_stringarray;
}
break;
case PDB_COLOR:
args[i].value.pdb_pointer = g_new (guchar, 3);
colorarray = args[i].value.pdb_pointer;
colorarray[0] = params[i].data.d_color.red;
colorarray[1] = params[i].data.d_color.green;
colorarray[2] = params[i].data.d_color.blue;
break;
case PDB_REGION:
g_message (_("the \"region\" arg type is not currently supported"));
break;
case PDB_DISPLAY:
args[i].value.pdb_int = params[i].data.d_display;
break;
case PDB_IMAGE:
args[i].value.pdb_int = params[i].data.d_image;
break;
case PDB_LAYER:
args[i].value.pdb_int = params[i].data.d_layer;
break;
case PDB_CHANNEL:
args[i].value.pdb_int = params[i].data.d_channel;
break;
case PDB_DRAWABLE:
args[i].value.pdb_int = params[i].data.d_drawable;
break;
case PDB_SELECTION:
args[i].value.pdb_int = params[i].data.d_selection;
break;
case PDB_BOUNDARY:
args[i].value.pdb_int = params[i].data.d_boundary;
break;
case PDB_PATH:
args[i].value.pdb_int = params[i].data.d_path;
break;
case PDB_PARASITE:
if (full_copy)
args[i].value.pdb_pointer = parasite_copy ((Parasite *)
&(params[i].data.d_parasite));
else
args[i].value.pdb_pointer = (void *)&(params[i].data.d_parasite);
break;
case PDB_STATUS:
args[i].value.pdb_int = params[i].data.d_status;
break;
case PDB_END:
break;
}
}
return args;
}
static GPParam*
plug_in_args_to_params (Argument *args,
int nargs,
int full_copy)
{
GPParam *params;
gchar **stringarray;
guchar *colorarray;
int i, j;
if (nargs == 0)
return NULL;
params = g_new (GPParam, nargs);
for (i = 0; i < nargs; i++)
{
params[i].type = args[i].arg_type;
switch (args[i].arg_type)
{
case PDB_INT32:
params[i].data.d_int32 = args[i].value.pdb_int;
break;
case PDB_INT16:
params[i].data.d_int16 = args[i].value.pdb_int;
break;
case PDB_INT8:
params[i].data.d_int8 = args[i].value.pdb_int;
break;
case PDB_FLOAT:
params[i].data.d_float = args[i].value.pdb_float;
break;
case PDB_STRING:
if (full_copy)
params[i].data.d_string = g_strdup (args[i].value.pdb_pointer);
else
params[i].data.d_string = args[i].value.pdb_pointer;
break;
case PDB_INT32ARRAY:
if (full_copy)
{
params[i].data.d_int32array = g_new (gint32, params[i-1].data.d_int32);
memcpy (params[i].data.d_int32array,
args[i].value.pdb_pointer,
params[i-1].data.d_int32 * 4);
}
else
{
params[i].data.d_int32array = args[i].value.pdb_pointer;
}
break;
case PDB_INT16ARRAY:
if (full_copy)
{
params[i].data.d_int16array = g_new (gint16, params[i-1].data.d_int32);
memcpy (params[i].data.d_int16array,
args[i].value.pdb_pointer,
params[i-1].data.d_int32 * 2);
}
else
{
params[i].data.d_int16array = args[i].value.pdb_pointer;
}
break;
case PDB_INT8ARRAY:
if (full_copy)
{
params[i].data.d_int8array = g_new (gint8, params[i-1].data.d_int32);
memcpy (params[i].data.d_int8array,
args[i].value.pdb_pointer,
params[i-1].data.d_int32);
}
else
{
params[i].data.d_int8array = args[i].value.pdb_pointer;
}
break;
case PDB_FLOATARRAY:
if (full_copy)
{
params[i].data.d_floatarray = g_new (gdouble, params[i-1].data.d_int32);
memcpy (params[i].data.d_floatarray,
args[i].value.pdb_pointer,
params[i-1].data.d_int32 * 8);
}
else
{
params[i].data.d_floatarray = args[i].value.pdb_pointer;
}
break;
case PDB_STRINGARRAY:
if (full_copy)
{
params[i].data.d_stringarray = g_new (gchar*, params[i-1].data.d_int32);
stringarray = args[i].value.pdb_pointer;
for (j = 0; j < params[i-1].data.d_int32; j++)
params[i].data.d_stringarray[j] = g_strdup (stringarray[j]);
}
else
{
params[i].data.d_stringarray = args[i].value.pdb_pointer;
}
break;
case PDB_COLOR:
colorarray = args[i].value.pdb_pointer;
if( colorarray )
{
params[i].data.d_color.red = colorarray[0];
params[i].data.d_color.green = colorarray[1];
params[i].data.d_color.blue = colorarray[2];
}
else
{
params[i].data.d_color.red = 0;
params[i].data.d_color.green = 0;
params[i].data.d_color.blue = 0;
}
break;
case PDB_REGION:
g_message (_("the \"region\" arg type is not currently supported"));
break;
case PDB_DISPLAY:
params[i].data.d_display = args[i].value.pdb_int;
break;
case PDB_IMAGE:
params[i].data.d_image = args[i].value.pdb_int;
break;
case PDB_LAYER:
params[i].data.d_layer = args[i].value.pdb_int;
break;
case PDB_CHANNEL:
params[i].data.d_channel = args[i].value.pdb_int;
break;
case PDB_DRAWABLE:
params[i].data.d_drawable = args[i].value.pdb_int;
break;
case PDB_SELECTION:
params[i].data.d_selection = args[i].value.pdb_int;
break;
case PDB_BOUNDARY:
params[i].data.d_boundary = args[i].value.pdb_int;
break;
case PDB_PATH:
params[i].data.d_path = args[i].value.pdb_int;
break;
case PDB_PARASITE:
if (full_copy)
{
Parasite *tmp;
tmp = parasite_copy (args[i].value.pdb_pointer);
if (tmp == NULL)
{
params[i].data.d_parasite.name = 0;
params[i].data.d_parasite.flags = 0;
params[i].data.d_parasite.size = 0;
params[i].data.d_parasite.data = 0;
}
else
{
memcpy (&params[i].data.d_parasite, tmp, sizeof(Parasite));
g_free(tmp);
}
}
else
{
if (args[i].value.pdb_pointer == NULL)
{
params[i].data.d_parasite.name = 0;
params[i].data.d_parasite.flags = 0;
params[i].data.d_parasite.size = 0;
params[i].data.d_parasite.data = 0;
}
else
memcpy (&params[i].data.d_parasite,
(Parasite *)(args[i].value.pdb_pointer),
sizeof(Parasite));
}
break;
case PDB_STATUS:
params[i].data.d_status = args[i].value.pdb_int;
break;
case PDB_END:
break;
}
}
return params;
}
static void
plug_in_params_destroy (GPParam *params,
int nparams,
int full_destroy)
{
int i, j;
for (i = 0; i < nparams; i++)
{
switch (params[i].type)
{
case PDB_INT32:
case PDB_INT16:
case PDB_INT8:
case PDB_FLOAT:
break;
case PDB_STRING:
if (full_destroy)
g_free (params[i].data.d_string);
break;
case PDB_INT32ARRAY:
if (full_destroy)
g_free (params[i].data.d_int32array);
break;
case PDB_INT16ARRAY:
if (full_destroy)
g_free (params[i].data.d_int16array);
break;
case PDB_INT8ARRAY:
if (full_destroy)
g_free (params[i].data.d_int8array);
break;
case PDB_FLOATARRAY:
if (full_destroy)
g_free (params[i].data.d_floatarray);
break;
case PDB_STRINGARRAY:
if (full_destroy)
{
for (j = 0; j < params[i-1].data.d_int32; j++)
g_free (params[i].data.d_stringarray[j]);
g_free (params[i].data.d_stringarray);
}
break;
case PDB_COLOR:
break;
case PDB_REGION:
g_message (_("the \"region\" arg type is not currently supported"));
break;
case PDB_DISPLAY:
case PDB_IMAGE:
case PDB_LAYER:
case PDB_CHANNEL:
case PDB_DRAWABLE:
case PDB_SELECTION:
case PDB_BOUNDARY:
case PDB_PATH:
break;
case PDB_PARASITE:
if (full_destroy)
if (params[i].data.d_parasite.data)
{
g_free (params[i].data.d_parasite.name);
g_free (params[i].data.d_parasite.data);
params[i].data.d_parasite.name = 0;
params[i].data.d_parasite.data = 0;
}
break;
case PDB_STATUS:
break;
case PDB_END:
break;
}
}
g_free (params);
}
static void
plug_in_args_destroy (Argument *args,
int nargs,
int full_destroy)
{
gchar **stringarray;
int count;
int i, j;
for (i = 0; i < nargs; i++)
{
switch (args[i].arg_type)
{
case PDB_INT32:
case PDB_INT16:
case PDB_INT8:
case PDB_FLOAT:
break;
case PDB_STRING:
if (full_destroy)
g_free (args[i].value.pdb_pointer);
break;
case PDB_INT32ARRAY:
if (full_destroy)
g_free (args[i].value.pdb_pointer);
break;
case PDB_INT16ARRAY:
if (full_destroy)
g_free (args[i].value.pdb_pointer);
break;
case PDB_INT8ARRAY:
if (full_destroy)
g_free (args[i].value.pdb_pointer);
break;
case PDB_FLOATARRAY:
if (full_destroy)
g_free (args[i].value.pdb_pointer);
break;
case PDB_STRINGARRAY:
if (full_destroy)
{
count = args[i-1].value.pdb_int;
stringarray = args[i].value.pdb_pointer;
for (j = 0; j < count; j++)
g_free (stringarray[j]);
g_free (args[i].value.pdb_pointer);
}
break;
case PDB_COLOR:
g_free (args[i].value.pdb_pointer);
break;
case PDB_REGION:
g_message (_("the \"region\" arg type is not currently supported"));
break;
case PDB_DISPLAY:
case PDB_IMAGE:
case PDB_LAYER:
case PDB_CHANNEL:
case PDB_DRAWABLE:
case PDB_SELECTION:
case PDB_BOUNDARY:
case PDB_PATH:
break;
case PDB_PARASITE:
if (full_destroy)
{
parasite_free ((Parasite *)(args[i].value.pdb_pointer));
args[i].value.pdb_pointer = NULL;
}
break;
case PDB_STATUS:
break;
case PDB_END:
break;
}
}
g_free (args);
}
int
plug_in_image_types_parse (char *image_types)
{
int types;
if (!image_types)
return (RGB_IMAGE | GRAY_IMAGE | INDEXED_IMAGE);
types = 0;
while (*image_types)
{
while (*image_types &&
((*image_types == ' ') ||
(*image_types == '\t') ||
(*image_types == ',')))
image_types++;
if (*image_types)
{
if (strncmp (image_types, "RGBA", 4) == 0)
{
types |= RGBA_IMAGE;
image_types += 4;
}
else if (strncmp (image_types, "RGB*", 4) == 0)
{
types |= RGB_IMAGE | RGBA_IMAGE;
image_types += 4;
}
else if (strncmp (image_types, "RGB", 3) == 0)
{
types |= RGB_IMAGE;
image_types += 3;
}
else if (strncmp (image_types, "GRAYA", 5) == 0)
{
types |= GRAYA_IMAGE;
image_types += 5;
}
else if (strncmp (image_types, "GRAY*", 5) == 0)
{
types |= GRAY_IMAGE | GRAYA_IMAGE;
image_types += 5;
}
else if (strncmp (image_types, "GRAY", 4) == 0)
{
types |= GRAY_IMAGE;
image_types += 4;
}
else if (strncmp (image_types, "INDEXEDA", 8) == 0)
{
types |= INDEXEDA_IMAGE;
image_types += 8;
}
else if (strncmp (image_types, "INDEXED*", 8) == 0)
{
types |= INDEXED_IMAGE | INDEXEDA_IMAGE;
image_types += 8;
}
else if (strncmp (image_types, "INDEXED", 7) == 0)
{
types |= INDEXED_IMAGE;
image_types += 7;
}
else
{
while (*image_types &&
(*image_types != 'R') &&
(*image_types != 'G') &&
(*image_types != 'I'))
image_types++;
}
}
}
return types;
}
static void
plug_in_progress_cancel (GtkWidget *widget,
PlugIn *plug_in)
{
plug_in->progress = NULL;
plug_in_destroy (plug_in);
}
static void
plug_in_disconnect_cancel (PlugIn *plug_in)
{
GDisplay *gdisp = NULL;
gdisp = gdisplay_get_ID (plug_in->progress_gdisp_ID);
gtk_widget_set_sensitive (gdisp->cancelbutton, FALSE);
gtk_signal_disconnect_by_func (GTK_OBJECT (gdisp->cancelbutton),
(GtkSignalFunc) plug_in_progress_cancel,
plug_in);
}
static void
plug_in_progress_init (PlugIn *plug_in,
char *message,
gint gdisp_ID)
{
GtkWidget *vbox;
GtkWidget *button;
GDisplay *gdisp = NULL;
guint context_id;
if (!message)
message = plug_in->args[0];
if (gdisp_ID > 0)
gdisp = gdisplay_get_ID(gdisp_ID);
if (gdisp_ID > 0 && GTK_WIDGET_VISIBLE (gdisp->statusarea)
&& (gdisp->progressid == 0 || plug_in->progress_gdisp_ID > 0))
{
context_id = gtk_statusbar_get_context_id(GTK_STATUSBAR(gdisp->statusbar),
"progress");
if (plug_in->progress_gdisp_ID > 0)
gtk_statusbar_pop(GTK_STATUSBAR(gdisp->statusbar), context_id);
gdisp->progressid = gtk_statusbar_push(GTK_STATUSBAR(gdisp->statusbar),
context_id, message);
plug_in->progress_gdisp_ID = gdisp_ID;
gtk_signal_connect (GTK_OBJECT (gdisp->cancelbutton), "clicked",
(GtkSignalFunc) plug_in_progress_cancel,
plug_in);
gtk_widget_set_sensitive (gdisp->cancelbutton, TRUE);
}
#ifdef SEPARATE_PROGRESS_BAR
else if (!plug_in->progress)
{
plug_in->progress = gtk_dialog_new ();
gtk_window_set_wmclass (GTK_WINDOW (plug_in->progress), "plug_in_progress", "Gimp");
gtk_window_set_title (GTK_WINDOW (plug_in->progress), prune_filename (plug_in->args[0]));
gtk_signal_connect (GTK_OBJECT (plug_in->progress), "destroy",
(GtkSignalFunc) plug_in_progress_cancel,
plug_in);
gtk_container_set_border_width (GTK_CONTAINER (GTK_DIALOG (plug_in->progress)->action_area), 2);
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (plug_in->progress)->vbox), vbox, TRUE, TRUE, 0);
gtk_widget_show (vbox);
plug_in->progress_label = gtk_label_new (message);
gtk_misc_set_alignment (GTK_MISC (plug_in->progress_label), 0.0, 0.5);
gtk_box_pack_start (GTK_BOX (vbox), plug_in->progress_label, FALSE, TRUE, 0);
gtk_widget_show (plug_in->progress_label);
plug_in->progress_bar = gtk_progress_bar_new ();
gtk_widget_set_usize (plug_in->progress_bar, 150, 20);
gtk_box_pack_start (GTK_BOX (vbox), plug_in->progress_bar, TRUE, TRUE, 0);
gtk_widget_show (plug_in->progress_bar);
button = gtk_button_new_with_label (_("Cancel"));
gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) gtk_widget_destroy,
GTK_OBJECT (plug_in->progress));
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (plug_in->progress)->action_area), button, TRUE, TRUE, 0);
gtk_widget_grab_default (button);
gtk_widget_show (button);
gtk_widget_show (plug_in->progress);
}
else
{
gtk_label_set (GTK_LABEL (plug_in->progress_label), message);
}
#else
else if (!plug_in->progress)
{
plug_in->progress = 0x1;
progress_update (0.0);
progress_start ();
}
#endif
}
static void
plug_in_progress_update (PlugIn *plug_in,
double percentage)
{
GDisplay *gdisp;
if (plug_in->progress_gdisp_ID > 0)
{
gdisp = gdisplay_get_ID(plug_in->progress_gdisp_ID);
if (percentage >= 0.0 && percentage <= 1.0)
gtk_progress_bar_update( GTK_PROGRESS_BAR (gdisp->progressbar), percentage);
}
else
{
#ifdef SEPARATE_PROGRESS_BAR
if (!plug_in->progress)
plug_in_progress_init (plug_in, NULL, -1);
if (percentage >= 0.0 && percentage <= 1.0)
gtk_progress_bar_update (GTK_PROGRESS_BAR (plug_in->progress_bar), percentage);
#else
progress_update (percentage);
#endif
}
}
static Argument*
progress_init_invoker (Argument *args)
{
int success = FALSE;
if (current_plug_in && current_plug_in->open)
{
success = TRUE;
if (no_interface == FALSE)
plug_in_progress_init (current_plug_in, args[0].value.pdb_pointer,
args[1].value.pdb_int);
}
return procedural_db_return_args (&progress_init_proc, success);
}
static Argument*
progress_update_invoker (Argument *args)
{
int success = FALSE;
if (current_plug_in && current_plug_in->open)
{
success = TRUE;
if (no_interface == FALSE)
plug_in_progress_update (current_plug_in, args[0].value.pdb_float);
}
return procedural_db_return_args (&progress_update_proc, success);
}
static Argument*
message_invoker (Argument *args)
{
g_message (args[0].value.pdb_pointer, NULL, NULL);
return procedural_db_return_args (&message_proc, TRUE);
}
static Argument*
message_handler_get_invoker (Argument *args)
{
Argument *return_args;
return_args = procedural_db_return_args (&message_handler_get_proc, TRUE);
return_args[1].value.pdb_int = message_handler;
return return_args;
}
static Argument*
message_handler_set_invoker (Argument *args)
{
int success = TRUE;
if ((args[0].value.pdb_int >= MESSAGE_BOX) &&
(args[0].value.pdb_int <= CONSOLE))
message_handler = args[0].value.pdb_int;
else
success = FALSE;
return procedural_db_return_args (&message_handler_set_proc, success);
}
static Argument*
plugin_temp_PDB_name_invoker (Argument *args)
{
Argument *return_args;
static gint proc_number = 0;
static gchar *proc_name = "temp_plugin_number_%d";
static gchar temp_area[20+10]; /* 10 should allow enough plugins! */
return_args = procedural_db_return_args (&plugin_temp_PDB_name_proc, TRUE);
sprintf(temp_area,proc_name,proc_number++);
return_args[1].value.pdb_pointer = g_strdup(temp_area);
return return_args;
}
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