225 lines
6.2 KiB
C
225 lines
6.2 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <libpika/pika.h>
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#include "script-fu-lib.h"
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#include "script-fu-types.h" /* SFScript */
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#include "scheme-wrapper.h" /* tinyscheme_init etc, */
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#include "script-fu-scripts.h" /* script_fu_find_scripts */
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#include "script-fu-interface.h" /* script_fu_interface_is_active */
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#include "script-fu-proc-factory.h"
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/*
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* The purpose here is a small, clean API to the exported functions of the library,
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* hiding internal types of the library
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* and hiding functions not static but not exported.
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*
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* Some are simple delegation to scheme_wrapper functions,
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* but others adapt
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* and some call functions not in scheme_wrapper.c
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*/
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/*
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* Return whether extension-script-fu has an open dialog.
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* extension-script-fu is a single process.
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* It cannot have concurrent dialogs open in the PIKA app.
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*
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* Other plugins implementing PLUGIN type PDB procedures
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* in their own process (e.g. pika-scheme-interpreter) do not need this.
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*/
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gboolean
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script_fu_extension_is_busy (void)
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{
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return script_fu_interface_is_active ();
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}
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/*
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* Find files at given paths, load them into the interpreter,
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* and register them as PDB procs of type TEMPORARY,
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* owned by the PDB proc of type PLUGIN for the given plugin.
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*/
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void
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script_fu_find_and_register_scripts ( PikaPlugIn *plugin,
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GList *paths)
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{
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script_fu_find_scripts (plugin, paths);
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}
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/*
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* Init the embedded interpreter.
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*
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* allow_register:
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* TRUE: allow loaded scripts to register PDB procedures.
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* The scheme functions script-fu-register and script-fu-menu-register are
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* defined to do something.
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* FALSE: The scheme functions script-fu-register and script-fu-menu-register are
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* defined but do nothing.
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*
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* Note that the embedded interpreter always defines scheme functions
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* for all PDB procedures already existing when the interpreter starts
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* (currently bound at startup, but its possible to lazy bind.)
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* allow_register doesn't affect that.
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*/
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void
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script_fu_init_embedded_interpreter ( GList *paths,
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gboolean allow_register,
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PikaRunMode run_mode)
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{
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g_debug ("script_fu_init_embedded_interpreter");
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tinyscheme_init (paths, allow_register);
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ts_set_run_mode (run_mode);
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/*
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* Ensure the embedded interpreter is running
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* and has loaded its internal Scheme scripts
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* and has defined existing PDB procs as Scheme foreign functions
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* (is ready to interpret PDB-like function calls in scheme scripts.)
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*
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* scripts/...init and scripts/...compat.scm are loaded
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* iff paths includes the "/scripts" dir.
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*
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* The .scm file(s) for plugins are loaded
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* iff paths includes their parent directory (e.g. /scripts)
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* Loaded does not imply yet registered in the PDB
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* (yet, they soon might be for some phases of the plugin.)
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*/
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}
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void
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script_fu_set_print_flag (gboolean should_print)
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{
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ts_set_print_flag (should_print);
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}
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/*
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* Make tinyscheme begin writing output to given gstring.
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*/
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void
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script_fu_redirect_output_to_gstr (GString *output)
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{
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ts_register_output_func (ts_gstring_output_func, output);
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}
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void
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script_fu_redirect_output_to_stdout (void)
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{
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ts_register_output_func (ts_stdout_output_func, NULL);
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}
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void
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script_fu_print_welcome (void)
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{
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ts_print_welcome ();
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}
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gboolean
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script_fu_interpret_string (const gchar *text)
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{
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/*converting from enum to boolean */
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return (gboolean) ts_interpret_string (text);
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}
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void
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script_fu_set_run_mode (PikaRunMode run_mode)
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{
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ts_set_run_mode (run_mode);
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}
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const gchar *
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script_fu_get_success_msg (void)
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{
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return ts_get_success_msg ();
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}
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void
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script_fu_run_read_eval_print_loop (void)
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{
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ts_interpret_stdin ();
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}
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void
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script_fu_register_quit_callback (void (*func) (void))
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{
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ts_register_quit_callback (func);
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}
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void
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script_fu_register_post_command_callback (void (*func) (void))
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{
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ts_register_post_command_callback (func);
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}
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/*
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* Return list of paths to directories containing .scm and .init scripts.
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* Usually at least PIKA's directory named like "/scripts."
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* List can also contain dirs custom or private to a user.
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" The PIKA dir often contain: plugins, init scripts, and utility scripts.
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*
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* Caller must free the returned list.
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*/
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GList *
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script_fu_search_path (void)
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{
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gchar *path_str;
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GList *path = NULL;
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path_str = pika_pikarc_query ("script-fu-path");
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if (path_str)
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{
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GError *error = NULL;
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path = pika_config_path_expand_to_files (path_str, &error);
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g_free (path_str);
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if (! path)
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{
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g_warning ("Can't convert script-fu-path to filesystem encoding: %s",
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error->message);
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g_clear_error (&error);
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}
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}
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return path;
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}
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PikaProcedure *
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script_fu_find_scripts_create_PDB_proc_plugin (PikaPlugIn *plug_in,
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GList *paths,
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const gchar *name)
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{
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/* Delegate to factory. */
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return script_fu_proc_factory_make_PLUGIN (plug_in, paths, name);
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}
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GList *
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script_fu_find_scripts_list_proc_names (PikaPlugIn *plug_in,
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GList *paths)
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{
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/* Delegate to factory. */
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return script_fu_proc_factory_list_names (plug_in, paths);
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}
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