gimp/app/gimphelp.c

292 lines
6.7 KiB
C

/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimphelp.c
* Copyright (C) 1999-2000 Michael Natterer <mitch@gimp.org>
*
* 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"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include "sys/types.h"
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "apptypes.h"
#include "gimphelp.h"
#include "gimprc.h"
#include "gimpui.h"
#include "plug_in.h"
#include "libgimp/gimpenv.h"
#include "libgimp/gimpintl.h"
#ifndef G_OS_WIN32
#define DEBUG_HELP
#endif
typedef struct _GimpIdleHelp GimpIdleHelp;
struct _GimpIdleHelp
{
gchar *help_path;
gchar *help_data;
};
/* local function prototypes */
static gint gimp_idle_help (gpointer data);
static gboolean gimp_help_internal (const gchar *help_path,
const gchar *current_locale,
const gchar *help_data);
static void gimp_help_netscape (const gchar *help_path,
const gchar *current_locale,
const gchar *help_data);
/**********************/
/* public functions */
/**********************/
/* The standard help function */
void
gimp_standard_help_func (const gchar *help_data)
{
gimp_help (NULL, help_data);
}
/* the main help function */
void
gimp_help (const gchar *help_path,
const gchar *help_data)
{
if (use_help)
{
GimpIdleHelp *idle_help;
idle_help = g_new0 (GimpIdleHelp, 1);
if (help_path && strlen (help_path))
idle_help->help_path = g_strdup (help_path);
if (help_data && strlen (help_data))
idle_help->help_data = g_strdup (help_data);
gtk_idle_add ((GtkFunction) gimp_idle_help, (gpointer) idle_help);
}
}
/*********************/
/* local functions */
/*********************/
static gint
gimp_idle_help (gpointer data)
{
GimpIdleHelp *idle_help;
static gchar *current_locale = "C";
idle_help = (GimpIdleHelp *) data;
if (idle_help->help_data == NULL && help_browser != HELP_BROWSER_GIMP)
idle_help->help_data = g_strdup ("introduction.html");
#ifdef DEBUG_HELP
if (idle_help->help_path)
g_print ("Help Path: %s\n", idle_help->help_path);
else
g_print ("Help Path: NULL\n");
if (idle_help->help_data)
g_print ("Help Page: %s\n", idle_help->help_data);
else
g_print ("Help Page: NULL\n");
g_print ("\n");
#endif /* DEBUG_HELP */
switch (help_browser)
{
case HELP_BROWSER_GIMP:
if (gimp_help_internal (idle_help->help_path,
current_locale,
idle_help->help_data))
break;
case HELP_BROWSER_NETSCAPE:
gimp_help_netscape (idle_help->help_path,
current_locale,
idle_help->help_data);
break;
default:
break;
}
if (idle_help->help_path)
g_free (idle_help->help_path);
if (idle_help->help_data)
g_free (idle_help->help_data);
g_free (idle_help);
return FALSE;
}
static void
gimp_help_internal_not_found_callback (GtkWidget *widget,
gboolean use_netscape,
gpointer data)
{
GList *update = NULL;
GList *remove = NULL;
if (use_netscape)
{
help_browser = HELP_BROWSER_NETSCAPE;
update = g_list_append (update, "help-browser");
save_gimprc (&update, &remove);
}
gtk_main_quit ();
}
static gboolean
gimp_help_internal (const gchar *help_path,
const gchar *current_locale,
const gchar *help_data)
{
ProcRecord *proc_rec;
/* Check if a help browser is already running */
proc_rec = procedural_db_lookup ("extension_gimp_help_browser_temp");
if (proc_rec == NULL)
{
Argument *args = NULL;
proc_rec = procedural_db_lookup ("extension_gimp_help_browser");
if (proc_rec == NULL)
{
GtkWidget *not_found =
gimp_query_boolean_box (_("Could not find GIMP Help Browser"),
NULL, NULL, FALSE,
_("Could not find the GIMP Help Browser procedure.\n"
"It probably was not compiled because\n"
"you don't have GtkXmHTML installed."),
_("Use Netscape instead"),
_("Cancel"),
NULL, NULL,
gimp_help_internal_not_found_callback,
NULL);
gtk_widget_show (not_found);
gtk_main ();
return (help_browser != HELP_BROWSER_NETSCAPE);
}
args = g_new (Argument, 4);
args[0].arg_type = PDB_INT32;
args[0].value.pdb_int = RUN_INTERACTIVE;
args[1].arg_type = PDB_STRING;
args[1].value.pdb_pointer = (gpointer) help_path;
args[2].arg_type = PDB_STRING;
args[2].value.pdb_pointer = (gpointer) current_locale;
args[3].arg_type = PDB_STRING;
args[3].value.pdb_pointer = (gpointer) help_data;
plug_in_run (proc_rec, args, 4, FALSE, TRUE, 0);
g_free (args);
}
else
{
Argument *return_vals;
gint nreturn_vals;
return_vals =
procedural_db_run_proc ("extension_gimp_help_browser_temp",
&nreturn_vals,
PDB_STRING, help_path,
PDB_STRING, current_locale,
PDB_STRING, help_data,
PDB_END);
procedural_db_destroy_args (return_vals, nreturn_vals);
}
return TRUE;
}
static void
gimp_help_netscape (const gchar *help_path,
const gchar *current_locale,
const gchar *help_data)
{
Argument *return_vals;
gint nreturn_vals;
gchar *url;
if (help_data[0] == '/') /* _not_ g_path_is_absolute() */
{
url = g_strconcat ("file:",
help_data,
NULL);
}
else
{
if (!help_path)
{
url = g_strconcat ("file:",
gimp_data_directory (),
"/help/",
current_locale, "/",
help_data,
NULL);
}
else
{
url = g_strconcat ("file:",
help_path, "/",
current_locale, "/",
help_data,
NULL);
}
}
return_vals =
procedural_db_run_proc ("extension_web_browser",
&nreturn_vals,
PDB_INT32, RUN_NONINTERACTIVE,
PDB_STRING, url,
PDB_INT32, FALSE,
PDB_END);
procedural_db_destroy_args (return_vals, nreturn_vals);
g_free (url);
}