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gimp/app/fileops.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995, 1996, 1997 Spencer Kimball and Peter Mattis
* Copyright (C) 1997 Josh MacDonald
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <ctype.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#include "appenv.h"
#include "actionarea.h"
#include "gdisplay.h"
#include "general.h"
#include "gimage.h"
#include "fileops.h"
#include "interface.h"
#include "menus.h"
#include "plug_in.h"
#include "procedural_db.h"
#include "gimprc.h"
typedef struct _OverwriteBox OverwriteBox;
struct _OverwriteBox
{
GtkWidget * obox;
char * full_filename;
char * raw_filename;
};
static Argument* register_load_handler_invoker (Argument *args);
static Argument* register_magic_load_handler_invoker (Argument *args);
static Argument* register_save_handler_invoker (Argument *args);
static Argument* file_load_invoker (Argument *args);
static Argument* file_save_invoker (Argument *args);
static Argument* file_temp_name_invoker (Argument *args);
static void file_overwrite (char *filename,
char* raw_filename);
static void file_overwrite_yes_callback (GtkWidget *w,
gpointer client_data);
static void file_overwrite_no_callback (GtkWidget *w,
gpointer client_data);
static gint file_overwrite_delete_callback (GtkWidget *w,
GdkEvent *e,
gpointer client_data);
static void file_open_ok_callback (GtkWidget *w,
gpointer client_data);
static void file_save_ok_callback (GtkWidget *w,
gpointer client_data);
static void file_dialog_show (GtkWidget *filesel);
static int file_dialog_hide (GtkWidget *filesel);
static void file_update_name (PlugInProcDef *proc,
GtkWidget *filesel);
static void file_load_type_callback (GtkWidget *w,
gpointer client_data);
static void file_save_type_callback (GtkWidget *w,
gpointer client_data);
static void file_convert_string (char *instr,
char *outmem,
int maxmem,
int *nmem);
static int file_check_single_magic (char *offset,
char *type,
char *value,
int headsize,
unsigned char *file_head,
FILE *ifp);
static int file_check_magic_list (GSList *magics_list,
int headsize,
unsigned char *head,
FILE *ifp);
static PlugInProcDef* file_proc_find (GSList *procs,
char *filename);
static void file_update_menus (GSList *procs,
int image_type);
static GtkWidget *fileload = NULL;
static GtkWidget *filesave = NULL;
static GtkWidget *open_options = NULL;
static GtkWidget *save_options = NULL;
/* Load by extension.
*/
static ProcArg file_load_args[] =
{
{ PDB_INT32, "run_mode", "Interactive, non-interactive." },
{ PDB_STRING, "filename", "The name of the file to load." },
{ PDB_STRING, "raw_filename", "The name entered." },
};
static ProcArg file_load_return_vals[] =
{
{ PDB_IMAGE, "image", "Output image." },
};
static ProcRecord file_load_proc =
{
"gimp_file_load",
"Loads a file by extension",
"This procedure invokes the correct file load handler according to the file's extension and/or prefix. The name of the file to load is typically a full pathname, and the name entered is what the user actually typed before prepending a directory path. The reason for this is that if the user types http://www.xcf/~gimp he wants to fetch a URL, and the full pathname will not look like a URL.",
"Josh MacDonald",
"Josh MacDonald",
"1997",
PDB_INTERNAL,
3,
file_load_args,
1,
file_load_return_vals,
{ { file_load_invoker } },
};
/* Save by extension.
*/
static ProcArg file_save_args[] =
{
{ PDB_INT32, "run_mode", "Interactive, non-interactive" },
{ PDB_IMAGE, "image", "Input image" },
{ PDB_DRAWABLE, "drawable", "Drawable to save" },
{ PDB_STRING, "filename", "The name of the file to save the image in" },
{ PDB_STRING, "raw_filename", "The name of the file to save the image in" }
};
static ProcRecord file_save_proc =
{
"gimp_file_save",
"Saves a file by extension",
"This procedure invokes the correct file save handler according to the file's extension and/or prefix. The name of the file to save is typically a full pathname, and the name entered is what the user actually typed before prepending a directory path. The reason for this is that if the user types http://www.xcf/~gimp he wants to fetch a URL, and the full pathname will not look like a URL.",
"Josh MacDonald",
"Josh MacDonald",
"1997",
PDB_INTERNAL,
5,
file_save_args,
0,
NULL,
{ { file_save_invoker } },
};
/* Temp name.
*/
static ProcArg file_temp_name_args[] =
{
{ PDB_STRING, "extension", "The extension the file will have." }
};
static ProcArg file_temp_name_values[] =
{
{ PDB_STRING, "name", "The temp name." }
};
static ProcRecord file_temp_name_proc =
{
"gimp_temp_name",
"Generates a unique filename.",
"Generates a unique filename using the temp path supplied in the user's gimprc.",
"Josh MacDonald",
"Josh MacDonald",
"1997",
PDB_INTERNAL,
1,
file_temp_name_args,
1,
file_temp_name_values,
{ { file_temp_name_invoker } },
};
/* Register magic load handler.
*/
static ProcArg register_magic_load_handler_args[] =
{
{ PDB_STRING,
"procedure_name",
"the name of the procedure to be used for loading" },
{ PDB_STRING,
"extensions",
"comma separated list of extensions this handler can load (ie. \"jpeg,jpg\")" },
{ PDB_STRING,
"prefixes",
"comma separated list of prefixes this handler can load (ie. \"http:,ftp:\")" },
{ PDB_STRING,
"magics",
"comma separated list of magic file information this handler can load (ie. \"0,string,GIF\")" },
};
static ProcRecord register_magic_load_handler_proc =
{
"gimp_register_magic_load_handler",
"Registers a file load handler procedure",
"Registers a procedural database procedure to be called to load files of a \
particular file format using magic file information.",
"Spencer Kimball & Peter Mattis",
"Spencer Kimball & Peter Mattis",
"1995-1996",
PDB_INTERNAL,
3,
register_magic_load_handler_args,
0,
NULL,
{ { register_magic_load_handler_invoker } },
};
/* Register load handler.
*/
static ProcArg register_load_handler_args[] =
{
{ PDB_STRING,
"procedure_name",
"the name of the procedure to be used for loading" },
{ PDB_STRING,
"extensions",
"comma separated list of extensions this handler can load (ie. \"jpeg,jpg\")" },
{ PDB_STRING,
"prefixes",
"comma separated list of prefixes this handler can load (ie. \"http:,ftp:\")" },
};
static ProcRecord register_load_handler_proc =
{
"gimp_register_load_handler",
"Registers a file load handler procedure",
"Registers a procedural database procedure to be called to load files of a particular file format.",
"Spencer Kimball & Peter Mattis",
"Spencer Kimball & Peter Mattis",
"1995-1996",
PDB_INTERNAL,
3,
register_load_handler_args,
0,
NULL,
{ { register_load_handler_invoker } },
};
/* Register save handler.
*/
static ProcArg register_save_handler_args[] =
{
{ PDB_STRING,
"procedure_name",
"the name of the procedure to be used for saving" },
{ PDB_STRING,
"extensions",
"comma separated list of extensions this handler can save (ie. \"jpeg,jpg\")" },
{ PDB_STRING,
"prefixes",
"comma separated list of prefixes this handler can save (ie. \"http:,ftp:\")" },
};
static ProcRecord register_save_handler_proc =
{
"gimp_register_save_handler",
"Registers a file save handler procedure",
"Registers a procedural database procedure to be called to save files in a particular file format.",
"Spencer Kimball & Peter Mattis",
"Spencer Kimball & Peter Mattis",
"1995-1996",
PDB_INTERNAL,
3,
register_save_handler_args,
0,
NULL,
{ { register_save_handler_invoker } },
};
static GSList *load_procs = NULL;
static GSList *save_procs = NULL;
static PlugInProcDef *load_file_proc = NULL;
static PlugInProcDef *save_file_proc = NULL;
static PlugInProcDef *last_load_file_proc = NULL;
static PlugInProcDef *last_save_file_proc = NULL;
static int image_ID = 0;
void
file_ops_pre_init ()
{
procedural_db_register (&register_magic_load_handler_proc);
procedural_db_register (&register_load_handler_proc);
procedural_db_register (&register_save_handler_proc);
procedural_db_register (&file_load_proc);
procedural_db_register (&file_save_proc);
procedural_db_register (&file_temp_name_proc);
}
void
file_ops_post_init ()
{
GtkMenuEntry entry;
PlugInProcDef *file_proc;
GSList *tmp;
load_procs = g_slist_reverse (load_procs);
save_procs = g_slist_reverse (save_procs);
tmp = load_procs;
while (tmp)
{
file_proc = tmp->data;
tmp = tmp->next;
entry.path = file_proc->menu_path;
entry.accelerator = NULL;
entry.callback = file_load_type_callback;
entry.callback_data = file_proc;
menus_create (&entry, 1);
}
tmp = save_procs;
while (tmp)
{
file_proc = tmp->data;
tmp = tmp->next;
entry.path = file_proc->menu_path;
entry.accelerator = NULL;
entry.callback = file_save_type_callback;
entry.callback_data = file_proc;
menus_create (&entry, 1);
}
}
static Argument*
register_load_handler_invoker (Argument *args)
{
Argument fargs[4];
memcpy ((char *)fargs, (char *)args, 3*sizeof (args[0]));
fargs[3].arg_type = PDB_STRING;
fargs[3].value.pdb_pointer = NULL;
return (register_magic_load_handler_invoker (fargs));
}
static Argument*
register_magic_load_handler_invoker (Argument *args)
{
Argument *return_args;
ProcRecord *proc;
PlugInProcDef* file_proc;
int success;
success = FALSE;
proc = procedural_db_lookup ((char*) args[0].value.pdb_pointer);
if (proc && ((proc->num_args < 3) ||
(proc->num_values < 1) ||
(proc->args[0].arg_type != PDB_INT32) ||
(proc->args[1].arg_type != PDB_STRING) ||
(proc->args[2].arg_type != PDB_STRING) ||
(proc->values[0].arg_type != PDB_IMAGE)))
{
g_warning ("load handler \"%s\" does not take the standard load handler args",
(char*) args[0].value.pdb_pointer);
goto done;
}
file_proc = plug_in_file_handler ((char*) args[0].value.pdb_pointer,
(char*) args[1].value.pdb_pointer,
(char*) args[2].value.pdb_pointer,
(char*) args[3].value.pdb_pointer);
if (!file_proc)
{
g_warning ("attempt to register non-existant load handler \"%s\"",
(char*) args[0].value.pdb_pointer);
goto done;
}
load_procs = g_slist_prepend (load_procs, file_proc);
success = TRUE;
done:
return_args = procedural_db_return_args (&register_load_handler_proc, success);
return return_args;
}
static Argument*
register_save_handler_invoker (Argument *args)
{
Argument *return_args;
ProcRecord *proc;
PlugInProcDef* file_proc;
int success;
success = FALSE;
proc = procedural_db_lookup ((char*) args[0].value.pdb_pointer);
if (proc && ((proc->num_args < 5) ||
(proc->args[0].arg_type != PDB_INT32) ||
(proc->args[1].arg_type != PDB_IMAGE) ||
(proc->args[2].arg_type != PDB_DRAWABLE) ||
(proc->args[3].arg_type != PDB_STRING) ||
(proc->args[4].arg_type != PDB_STRING)))
{
g_warning ("save handler \"%s\" does not take the standard save handler args",
(char*) args[0].value.pdb_pointer);
goto done;
}
file_proc = plug_in_file_handler ((char*) args[0].value.pdb_pointer,
(char*) args[1].value.pdb_pointer,
(char*) args[2].value.pdb_pointer,
NULL);
if (!file_proc)
{
g_warning ("attempt to register non-existant save handler \"%s\"",
(char*) args[0].value.pdb_pointer);
goto done;
}
save_procs = g_slist_prepend (save_procs, file_proc);
success = TRUE;
done:
return_args = procedural_db_return_args (&register_save_handler_proc, success);
return return_args;
}
void
file_open_callback (GtkWidget *w,
gpointer client_data)
{
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *option_menu;
GtkWidget *load_menu;
GDisplay *gdisplay;
if (!fileload)
{
fileload = gtk_file_selection_new ("Load Image");
gtk_window_position (GTK_WINDOW (fileload), GTK_WIN_POS_MOUSE);
gtk_window_set_wmclass (GTK_WINDOW (fileload), "load_image", "Gimp");
gtk_signal_connect_object (GTK_OBJECT (GTK_FILE_SELECTION (fileload)->cancel_button),
"clicked",
GTK_SIGNAL_FUNC (file_dialog_hide),
GTK_OBJECT (fileload));
gtk_signal_connect (GTK_OBJECT (fileload),
"delete_event",
GTK_SIGNAL_FUNC (file_dialog_hide),
NULL);
gtk_signal_connect (GTK_OBJECT (GTK_FILE_SELECTION (fileload)->ok_button), "clicked", (GtkSignalFunc) file_open_ok_callback, fileload);
gtk_quit_add_destroy (1, GTK_OBJECT (fileload));
}
else
{
if (GTK_WIDGET_VISIBLE (fileload))
return;
gtk_window_set_title (GTK_WINDOW (fileload), "Load Image");
}
gdisplay = gdisplay_active ();
if (!open_options)
{
open_options = gtk_frame_new ("Open Options");
gtk_frame_set_shadow_type (GTK_FRAME (open_options), GTK_SHADOW_ETCHED_IN);
hbox = gtk_hbox_new (FALSE, 1);
gtk_container_border_width (GTK_CONTAINER (hbox), 5);
gtk_container_add (GTK_CONTAINER (open_options), hbox);
gtk_widget_show (hbox);
label = gtk_label_new ("Determine file type:");
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, TRUE, 0);
gtk_widget_show (label);
option_menu = gtk_option_menu_new ();
gtk_box_pack_start (GTK_BOX (hbox), option_menu, TRUE, TRUE, 0);
gtk_widget_show (option_menu);
menus_get_load_menu (&load_menu, NULL);
gtk_option_menu_set_menu (GTK_OPTION_MENU (option_menu), load_menu);
gtk_box_pack_end (GTK_BOX (GTK_FILE_SELECTION (fileload)->main_vbox),
open_options, FALSE, FALSE, 5);
}
load_file_proc = last_load_file_proc;
last_load_file_proc = NULL;
gtk_widget_show (open_options);
file_dialog_show (fileload);
}
void
file_save_callback (GtkWidget *w,
gpointer client_data)
{
GDisplay *gdisplay;
gdisplay = gdisplay_active ();
/* Only save if the gimage has been modified */
if (gdisplay->gimage->dirty != 0)
{
if (gdisplay->gimage->has_filename == FALSE)
{
popup_shell = gdisplay->shell;
file_save_as_callback (w, client_data);
}
else
file_save (gdisplay->gimage->ID, gimage_filename (gdisplay->gimage),
prune_filename (gimage_filename(gdisplay->gimage)));
}
}
void
file_save_as_callback (GtkWidget *w,
gpointer client_data)
{
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *option_menu;
GtkWidget *save_menu;
GDisplay *gdisplay;
if (!filesave)
{
filesave = gtk_file_selection_new ("Save Image");
gtk_window_set_wmclass (GTK_WINDOW (filesave), "save_image", "Gimp");
gtk_window_position (GTK_WINDOW (filesave), GTK_WIN_POS_MOUSE);
gtk_signal_connect_object (GTK_OBJECT (GTK_FILE_SELECTION (filesave)->cancel_button),
"clicked",
GTK_SIGNAL_FUNC (file_dialog_hide),
GTK_OBJECT (filesave));
gtk_signal_connect (GTK_OBJECT (filesave),
"delete_event",
GTK_SIGNAL_FUNC (file_dialog_hide),
NULL);
gtk_signal_connect (GTK_OBJECT (GTK_FILE_SELECTION (filesave)->ok_button), "clicked", (GtkSignalFunc) file_save_ok_callback, filesave);
gtk_quit_add_destroy (1, GTK_OBJECT (filesave));
}
else
{
if (GTK_WIDGET_VISIBLE (filesave))
return;
gtk_window_set_title (GTK_WINDOW (filesave), "Save Image");
}
gdisplay = gdisplay_active ();
image_ID = gdisplay->gimage->ID;
if (!save_options)
{
save_options = gtk_frame_new ("Save Options");
gtk_frame_set_shadow_type (GTK_FRAME (save_options), GTK_SHADOW_ETCHED_IN);
hbox = gtk_hbox_new (FALSE, 1);
gtk_container_border_width (GTK_CONTAINER (hbox), 5);
gtk_container_add (GTK_CONTAINER (save_options), hbox);
gtk_widget_show (hbox);
label = gtk_label_new ("Determine file type:");
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, TRUE, 0);
gtk_widget_show (label);
option_menu = gtk_option_menu_new ();
gtk_box_pack_start (GTK_BOX (hbox), option_menu, TRUE, TRUE, 0);
gtk_widget_show (option_menu);
menus_get_save_menu (&save_menu, NULL);
gtk_option_menu_set_menu (GTK_OPTION_MENU (option_menu), save_menu);
gtk_box_pack_end (GTK_BOX (GTK_FILE_SELECTION (filesave)->main_vbox),
save_options, FALSE, FALSE, 5);
}
switch (gdisplay->gimage->base_type)
{
case RGB:
file_update_menus (save_procs, RGB_IMAGE);
break;
case GRAY:
file_update_menus (save_procs, GRAY_IMAGE);
break;
case INDEXED:
file_update_menus (save_procs, INDEXED_IMAGE);
break;
}
save_file_proc = last_save_file_proc;
last_save_file_proc = NULL;
gtk_widget_show (save_options);
file_dialog_show (filesave);
}
void
file_load_by_extension_callback (GtkWidget *w,
gpointer client_data)
{
load_file_proc = NULL;
}
void
file_save_by_extension_callback (GtkWidget *w,
gpointer client_data)
{
save_file_proc = NULL;
}
static void
file_update_name (PlugInProcDef *proc, GtkWidget *filesel)
{
if (proc->extensions_list)
{
char* text = gtk_entry_get_text (GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry));
char* last_dot = strrchr (text, '.');
GString *s;
if (last_dot == text || !text[0])
return;
s = g_string_new (text);
if (last_dot)
g_string_truncate (s, last_dot-text);
g_string_append (s, ".");
g_string_append (s, (char*) proc->extensions_list->data);
gtk_entry_set_text (GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry), s->str);
g_string_free (s, TRUE);
}
}
static void
file_load_type_callback (GtkWidget *w,
gpointer client_data)
{
PlugInProcDef* proc = (PlugInProcDef *) client_data;
file_update_name (proc, fileload);
load_file_proc = proc;
}
static void
file_save_type_callback (GtkWidget *w,
gpointer client_data)
{
PlugInProcDef* proc = (PlugInProcDef *) client_data;
file_update_name (proc, filesave);
save_file_proc = proc;
}
int
file_open (char *filename, char* raw_filename)
{
PlugInProcDef *file_proc;
ProcRecord *proc;
Argument *args;
Argument *return_vals;
GImage *gimage;
int gimage_ID;
int return_val;
int i;
file_proc = load_file_proc;
if (!file_proc)
file_proc = file_proc_find (load_procs, filename);
if (!file_proc)
{
/* WARNING */
return FALSE;
}
proc = &file_proc->db_info;
args = g_new (Argument, proc->num_args);
memset (args, 0, (sizeof (Argument) * proc->num_args));
for (i = 0; i < proc->num_args; i++)
args[i].arg_type = proc->args[i].arg_type;
args[0].value.pdb_int = 0;
args[1].value.pdb_pointer = filename;
args[2].value.pdb_pointer = raw_filename;
return_vals = procedural_db_execute (proc->name, args);
return_val = (return_vals[0].value.pdb_int == PDB_SUCCESS);
gimage_ID = return_vals[1].value.pdb_int;
procedural_db_destroy_args (return_vals, proc->num_values);
g_free (args);
if ((gimage = gimage_get_ID (gimage_ID)) != NULL)
{
/* enable & clear all undo steps */
gimage_enable_undo (gimage);
/* set the image to clean */
gimage_clean_all (gimage);
/* display the image */
gdisplay_new (gimage, 0x0101);
}
return return_val;
}
int
file_save (int image_ID,
char *filename,
char *raw_filename)
{
PlugInProcDef *file_proc;
ProcRecord *proc;
Argument *args;
Argument *return_vals;
int return_val;
GImage *gimage;
int i;
if ((gimage = gimage_get_ID (image_ID)) == NULL)
return FALSE;
file_proc = save_file_proc;
if (!file_proc)
file_proc = file_proc_find (save_procs, raw_filename);
if (!file_proc)
return FALSE;
proc = &file_proc->db_info;
args = g_new (Argument, proc->num_args);
memset (args, 0, (sizeof (Argument) * proc->num_args));
for (i = 0; i < proc->num_args; i++)
args[i].arg_type = proc->args[i].arg_type;
args[0].value.pdb_int = 0;
args[1].value.pdb_int = image_ID;
args[2].value.pdb_int = drawable_ID (gimage_active_drawable (gimage));
args[3].value.pdb_pointer = filename;
args[4].value.pdb_pointer = raw_filename;
return_vals = procedural_db_execute (proc->name, args);
return_val = (return_vals[0].value.pdb_int == PDB_SUCCESS);
if (return_val)
{
/* set this image to clean */
gimage_clean_all (gimage);
/* set the image title */
gimage_set_filename (gimage, filename);
}
g_free (return_vals);
g_free (args);
return return_val;
}
static void
file_open_ok_callback (GtkWidget *w,
gpointer client_data)
{
GtkFileSelection *fs;
char* filename, *raw_filename;
struct stat buf;
int err;
GString *s;
fs = GTK_FILE_SELECTION (client_data);
filename = gtk_file_selection_get_filename (fs);
raw_filename = gtk_entry_get_text (GTK_ENTRY(fs->selection_entry));
g_assert (filename && raw_filename);
if (strlen (raw_filename) == 0)
return;
err = stat (filename, &buf);
if (err == 0 && (buf.st_mode & S_IFDIR))
{
GString *s = g_string_new (filename);
if (s->str[s->len - 1] != '/')
{
g_string_append_c (s, '/');
}
gtk_file_selection_set_filename (fs, s->str);
g_string_free (s, TRUE);
return;
}
if (file_open (filename, raw_filename))
{
file_dialog_hide (client_data);
return;
}
s = g_string_new ("Open failed: ");
g_string_append (s, raw_filename);
message_box (s->str, NULL, NULL);
g_string_free (s, TRUE);
}
static void
file_save_ok_callback (GtkWidget *w,
gpointer client_data)
{
GtkFileSelection *fs;
char* filename, *raw_filename;
GString* s;
struct stat buf;
int err;
fs = GTK_FILE_SELECTION (client_data);
filename = gtk_file_selection_get_filename (fs);
raw_filename = gtk_entry_get_text (GTK_ENTRY(fs->selection_entry));
err = stat (filename, &buf);
g_assert (filename && raw_filename);
if (err == 0)
{
if (buf.st_mode & S_IFDIR)
{
GString *s = g_string_new (filename);
g_string_append_c (s, '/');
gtk_file_selection_set_filename (fs, s->str);
g_string_free (s, TRUE);
return;
}
else if (buf.st_mode & S_IFREG)
{
file_overwrite (g_strdup (filename), g_strdup (raw_filename));
return;
}
else
{
s = g_string_new (NULL);
g_string_sprintf (s, "%s is an irregular file (%s)", raw_filename, g_strerror(errno));
}
}
else if (file_save (image_ID, filename, raw_filename))
{
file_dialog_hide (client_data);
return;
}
else
{
s = g_string_new ("Save failed: ");
g_string_append (s, raw_filename);
g_string_append (s, "\nYou might have tried to save an RGB image with");
g_string_append (s, "\na plug-in that only supports Indexed or Gray images");
}
message_box (s->str, NULL, NULL);
g_string_free (s, TRUE);
}
static void
file_dialog_show (GtkWidget *filesel)
{
menus_set_sensitive ("<Toolbox>/File/Open", FALSE);
menus_set_sensitive ("<Image>/File/Open", FALSE);
menus_set_sensitive ("<Image>/File/Save", FALSE);
menus_set_sensitive ("<Image>/File/Save as", FALSE);
gtk_widget_show (filesel);
}
static int
file_dialog_hide (GtkWidget *filesel)
{
gtk_widget_hide (filesel);
menus_set_sensitive ("<Toolbox>/File/Open", TRUE);
menus_set_sensitive ("<Image>/File/Open", TRUE);
menus_set_sensitive ("<Image>/File/Save", TRUE);
menus_set_sensitive ("<Image>/File/Save as", TRUE);
return TRUE;
}
static void
file_overwrite (char *filename, char* raw_filename)
{
static ActionAreaItem obox_action_items[2] =
{
{ "Yes", file_overwrite_yes_callback, NULL, NULL },
{ "No", file_overwrite_no_callback, NULL, NULL }
};
OverwriteBox *overwrite_box;
GtkWidget *vbox;
GtkWidget *label;
char *overwrite_text;
overwrite_box = (OverwriteBox *) g_malloc (sizeof (OverwriteBox));
overwrite_text = (char *) g_malloc (strlen (" exists, overwrite?") + strlen (filename) + 1);
sprintf (overwrite_text, "%s exists, overwrite?", filename);
overwrite_box->full_filename = filename;
overwrite_box->raw_filename = raw_filename;
overwrite_box->obox = gtk_dialog_new ();
gtk_window_set_wmclass (GTK_WINDOW (overwrite_box->obox), "fiel_exists", "Gimp");
gtk_window_set_title (GTK_WINDOW (overwrite_box->obox), "File Exists!");
gtk_window_position (GTK_WINDOW (overwrite_box->obox), GTK_WIN_POS_MOUSE);
gtk_signal_connect (GTK_OBJECT (overwrite_box->obox),
"delete_event",
(GtkSignalFunc) file_overwrite_delete_callback,
overwrite_box);
vbox = gtk_vbox_new (FALSE, 1);
gtk_container_border_width (GTK_CONTAINER (vbox), 1);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (overwrite_box->obox)->vbox), vbox, TRUE, TRUE, 0);
label = gtk_label_new (overwrite_text);
gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, FALSE, 0);
obox_action_items[0].user_data = overwrite_box;
obox_action_items[1].user_data = overwrite_box;
build_action_area (GTK_DIALOG (overwrite_box->obox), obox_action_items, 2, 0);
gtk_widget_show (label);
gtk_widget_show (vbox);
gtk_widget_show (overwrite_box->obox);
g_free (overwrite_text);
}
static void
file_overwrite_yes_callback (GtkWidget *w,
gpointer client_data)
{
OverwriteBox *overwrite_box;
GImage *gimage;
overwrite_box = (OverwriteBox *) client_data;
if (((gimage = gimage_get_ID (image_ID)) != NULL) &&
file_save (image_ID, overwrite_box->full_filename, overwrite_box->raw_filename))
{
image_ID = 0;
file_dialog_hide (filesave);
}
else
{
GString* s;
s = g_string_new ("Save failed: ");
g_string_append (s, overwrite_box->raw_filename);
g_string_append (s, "\nYou might have tried to save an RGB image with");
g_string_append (s, "\na plug-in that only supports Indexed or Gray images");
message_box (s->str, NULL, NULL);
g_string_free (s, TRUE);
}
gtk_widget_destroy (overwrite_box->obox);
g_free (overwrite_box->full_filename);
g_free (overwrite_box->raw_filename);
g_free (overwrite_box);
}
static gint
file_overwrite_delete_callback (GtkWidget *w,
GdkEvent *e,
gpointer client_data)
{
file_overwrite_no_callback (w, client_data);
return TRUE;
}
static void
file_overwrite_no_callback (GtkWidget *w,
gpointer client_data)
{
OverwriteBox *overwrite_box;
overwrite_box = (OverwriteBox *) client_data;
gtk_widget_destroy (overwrite_box->obox);
g_free (overwrite_box->full_filename);
g_free (overwrite_box->raw_filename);
g_free (overwrite_box);
}
static PlugInProcDef*
file_proc_find (GSList *procs,
char *filename)
{
PlugInProcDef *file_proc, *size_matched_proc;
GSList *all_procs = procs;
GSList *extensions;
GSList *prefixes;
char *extension;
char *p1, *p2;
FILE *ifp = NULL;
int head_size = -2, size_match_count = 0;
int match_val;
unsigned char head[256];
size_matched_proc = NULL;
extension = strrchr (filename, '.');
if (extension)
extension += 1;
/* At first look for magics */
while (procs)
{
file_proc = procs->data;
procs = procs->next;
if (file_proc->magics_list)
{
if (head_size == -2)
{
head_size = 0;
if ((ifp = fopen (filename, "rb")) != NULL)
head_size = fread ((char *)head, 1, sizeof (head), ifp);
}
if (head_size >= 4)
{
match_val = file_check_magic_list (file_proc->magics_list,
head_size, head, ifp);
if (match_val == 2) /* size match ? */
{ /* Use it only if no other magic matches */
size_match_count++;
size_matched_proc = file_proc;
}
else if (match_val)
{
fclose (ifp);
return (file_proc);
}
}
}
}
if (ifp) fclose (ifp);
if (size_match_count == 1) return (size_matched_proc);
procs = all_procs;
while (procs)
{
file_proc = procs->data;
procs = procs->next;
for (prefixes = file_proc->prefixes_list; prefixes; prefixes = prefixes->next)
{
p1 = filename;
p2 = (char*) prefixes->data;
if (strncmp (filename, prefixes->data, strlen (prefixes->data)) == 0)
return file_proc;
}
for (extensions = file_proc->extensions_list; extension && extensions; extensions = extensions->next)
{
p1 = extension;
p2 = (char*) extensions->data;
while (*p1 && *p2)
{
if (tolower (*p1) != tolower (*p2))
break;
p1 += 1;
p2 += 1;
}
if (!(*p1) && !(*p2))
return file_proc;
}
}
return NULL;
}
static void file_convert_string (char *instr,
char *outmem,
int maxmem,
int *nmem)
{ /* Convert a string in C-notation to array of char */
unsigned char *uin = (unsigned char *)instr;
unsigned char *uout = (unsigned char *)outmem;
unsigned char tmp[5], *tmpptr;
int k;
while ((*uin != '\0') && ((((char *)uout) - outmem) < maxmem))
{
if (*uin != '\\') /* Not an escaped character ? */
{
*(uout++) = *(uin++);
continue;
}
if (*(++uin) == '\0')
{
*(uout++) = '\\';
break;
}
switch (*uin)
{
case '0': case '1': case '2': case '3': /* octal */
for (tmpptr = tmp; (tmpptr-tmp) <= 3;)
{
*(tmpptr++) = *(uin++);
if ( (*uin == '\0') || (!isdigit (*uin))
|| (*uin == '8') || (*uin == '9'))
break;
}
*tmpptr = '\0';
sscanf (tmp, "%o", &k);
*(uout++) = k;
break;
case 'a': *(uout++) = '\a'; uin++; break;
case 'b': *(uout++) = '\b'; uin++; break;
case 't': *(uout++) = '\t'; uin++; break;
case 'n': *(uout++) = '\n'; uin++; break;
case 'v': *(uout++) = '\v'; uin++; break;
case 'f': *(uout++) = '\f'; uin++; break;
case 'r': *(uout++) = '\r'; uin++; break;
default : *(uout++) = *(uin++); break;
}
}
*nmem = ((char *)uout) - outmem;
}
static int
file_check_single_magic (char *offset,
char *type,
char *value,
int headsize,
unsigned char *file_head,
FILE *ifp)
{ /* Return values are 0: no match, 1: magic match, 2: size match */
long offs;
unsigned long num_testval, num_operatorval;
unsigned long fileval;
int numbytes, k, c = 0, found = 0;
char *num_operator_ptr, num_operator, num_test;
unsigned char mem_testval[256];
/* Check offset */
if (sscanf (offset, "%ld", &offs) != 1) return (0);
if (offs < 0) return (0);
/* Check type of test */
num_operator_ptr = NULL;
num_operator = '\0';
num_test = '=';
if (strncmp (type, "byte", 4) == 0)
{
numbytes = 1;
num_operator_ptr = type+4;
}
else if (strncmp (type, "short", 5) == 0)
{
numbytes = 2;
num_operator_ptr = type+5;
}
else if (strncmp (type, "long", 4) == 0)
{
numbytes = 4;
num_operator_ptr = type+4;
}
else if (strncmp (type, "size", 4) == 0)
{
numbytes = 5;
}
else if (strcmp (type, "string") == 0)
{
numbytes = 0;
}
else return (0);
/* Check numerical operator value if present */
if (num_operator_ptr && (*num_operator_ptr == '&'))
{
if (isdigit (num_operator_ptr[1]))
{
if (num_operator_ptr[1] != '0') /* decimal */
sscanf (num_operator_ptr+1, "%ld", &num_operatorval);
else if (num_operator_ptr[2] == 'x') /* hexadecimal */
sscanf (num_operator_ptr+3, "%lx", &num_operatorval);
else /* octal */
sscanf (num_operator_ptr+2, "%lo", &num_operatorval);
num_operator = *num_operator_ptr;
}
}
if (numbytes > 0) /* Numerical test ? */
{
/* Check test value */
if ((value[0] == '=') || (value[0] == '>') || (value[0] == '<'))
{
num_test = value[0];
value++;
}
if (!isdigit (value[0])) return (0);
if (value[0] != '0') /* decimal */
num_testval = strtol(value, NULL, 10);
else if (value[1] == 'x') /* hexadecimal */
num_testval = strtol(value+2, NULL, 16);
else /* octal */
num_testval = strtol(value+1, NULL, 8);
fileval = 0;
if (numbytes == 5) /* Check for file size ? */
{struct stat buf;
if (fstat (fileno (ifp), &buf) < 0) return (0);
fileval = buf.st_size;
}
else if (offs + numbytes <= headsize) /* We have it in memory ? */
{
for (k = 0; k < numbytes; k++)
fileval = (fileval << 8) | (long)file_head[offs+k];
}
else /* Read it from file */
{
if (fseek (ifp, offs, SEEK_SET) < 0) return (0);
for (k = 0; k < numbytes; k++)
fileval = (fileval << 8) | (c = getc (ifp));
if (c == EOF) return (0);
}
if (num_operator == '&')
fileval &= num_operatorval;
if (num_test == '<')
found = (fileval < num_testval);
else if (num_test == '>')
found = (fileval > num_testval);
else
found = (fileval == num_testval);
if (found && (numbytes == 5)) found = 2;
}
else if (numbytes == 0) /* String test */
{
file_convert_string ((char *)value, (char *)mem_testval,
sizeof (mem_testval), &numbytes);
if (numbytes <= 0) return (0);
if (offs + numbytes <= headsize) /* We have it in memory ? */
{
found = (memcmp (mem_testval, file_head+offs, numbytes) == 0);
}
else /* Read it from file */
{
if (fseek (ifp, offs, SEEK_SET) < 0) return (0);
found = 1;
for (k = 0; found && (k < numbytes); k++)
{
c = getc (ifp);
found = (c != EOF) && (c == (int)mem_testval[k]);
}
}
}
return (found);
}
static int file_check_magic_list (GSList *magics_list,
int headsize,
unsigned char *head,
FILE *ifp)
{ /* Return values are 0: no match, 1: magic match, 2: size match */
char *offset, *type, *value;
int and = 0;
int found = 0, match_val;
while (magics_list)
{
if ((offset = (char *)magics_list->data) == NULL) break;
if ((magics_list = magics_list->next) == NULL) break;
if ((type = (char *)magics_list->data) == NULL) break;
if ((magics_list = magics_list->next) == NULL) break;
if ((value = (char *)magics_list->data) == NULL) break;
magics_list = magics_list->next;
match_val = file_check_single_magic (offset, type, value,
headsize, head, ifp);
if (and)
found = found && match_val;
else
found = match_val;
and = (strchr (offset, '&') != NULL);
if ((!and) && found) return (match_val);
}
return (0);
}
static void
file_update_menus (GSList *procs,
int image_type)
{
PlugInProcDef *file_proc;
while (procs)
{
file_proc = procs->data;
procs = procs->next;
if (file_proc->db_info.proc_type != PDB_EXTENSION)
menus_set_sensitive (file_proc->menu_path, (file_proc->image_types_val & image_type));
}
}
static Argument*
file_load_invoker (Argument *args)
{
PlugInProcDef *file_proc;
ProcRecord *proc;
file_proc = file_proc_find (load_procs, args[2].value.pdb_pointer);
if (!file_proc)
return procedural_db_return_args (&file_load_proc, FALSE);
proc = &file_proc->db_info;
return procedural_db_execute (proc->name, args);
}
static Argument*
file_save_invoker (Argument *args)
{
Argument *new_args;
Argument *return_vals;
PlugInProcDef *file_proc;
ProcRecord *proc;
int i;
file_proc = file_proc_find (save_procs, args[4].value.pdb_pointer);
if (!file_proc)
return procedural_db_return_args (&file_save_proc, FALSE);
proc = &file_proc->db_info;
new_args = g_new (Argument, proc->num_args);
memset (new_args, 0, (sizeof (Argument) * proc->num_args));
for (i = 0; i < proc->num_args; i++)
new_args[i].arg_type = proc->args[i].arg_type;
memcpy(new_args, args, (sizeof (Argument) * 5));
return_vals = procedural_db_execute (proc->name, new_args);
g_free (new_args);
return return_vals;
}
static Argument*
file_temp_name_invoker (Argument *args)
{
static gint id = 0;
static gint pid;
Argument *return_args;
GString *s = g_string_new (NULL);
if (id == 0)
pid = getpid();
g_string_sprintf (s, "%s/gimp_temp.%d%d.%s", temp_path, pid, id++, (char*)args[0].value.pdb_pointer);
return_args = procedural_db_return_args (&file_temp_name_proc, TRUE);
return_args[1].value.pdb_pointer = s->str;
g_string_free (s, FALSE);
return return_args;
}
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