104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
/*
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* This is a plug-in for PIKA.
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*
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* Generates clickable image maps.
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*
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* Copyright (C) 1998-1999 Maurits Rijk lpeek.mrijk@consunet.nl
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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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*/
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#ifndef _IMAP_COMMAND_H
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#define _IMAP_COMMAND_H
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#include "imap_object.h"
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#define DEFAULT_UNDO_LEVELS 10
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typedef struct CommandClass_t CommandClass_t;
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typedef struct Command_t Command_t;
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typedef struct CommandList_t CommandList_t;
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typedef enum {CMD_APPEND, CMD_DESTRUCT, CMD_IGNORE} CmdExecuteValue_t;
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struct CommandClass_t {
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void (*destruct)(Command_t*);
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CmdExecuteValue_t (*execute)(Command_t*);
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void (*undo)(Command_t*);
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void (*redo)(Command_t*);
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};
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struct Command_t {
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CommandClass_t *class;
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CommandList_t *sub_commands;
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const gchar *name;
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gboolean locked;
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};
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typedef Command_t* (*CommandFactory_t)(void);
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typedef void (*CommandListCallbackFunc_t)(Command_t*, gpointer);
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typedef struct {
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CommandListCallbackFunc_t func;
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gpointer data;
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} CommandListCB_t;
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typedef struct {
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GList *list;
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} CommandListCallback_t;
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struct CommandList_t {
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CommandList_t *parent;
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gint undo_levels;
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GList *list;
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GList *undo; /* Pointer to current undo command */
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GList *redo; /* Pointer to current redo command */
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CommandListCallback_t update_cb;
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};
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CommandList_t *command_list_new(gint undo_levels);
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void command_list_destruct(CommandList_t *list);
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void command_list_set_undo_level(gint level);
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void command_list_add(Command_t *command);
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void command_list_remove_all(void);
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void command_list_undo(CommandList_t *list);
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void command_list_undo_all(CommandList_t *list);
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void command_list_redo(CommandList_t *list);
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void command_list_redo_all(CommandList_t *list);
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void command_list_add_update_cb(CommandListCallbackFunc_t func, gpointer data);
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Command_t *command_list_get_redo_command(void);
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Command_t *command_new(void (*func)(void));
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Command_t *command_init(Command_t *command, const gchar *name,
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CommandClass_t *class);
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void command_execute(Command_t *command);
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void command_undo(Command_t *command);
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void command_redo(Command_t *command);
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void command_set_name(Command_t *command, const gchar *name);
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void command_add_subcommand(Command_t *command, Command_t *sub_command);
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void last_command_undo(void);
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void last_command_redo(void);
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void subcommand_list_add(CommandList_t *list, Command_t *command);
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Command_t *subcommand_start(const gchar *name);
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void subcommand_end(void);
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#define command_lock(command) ((command)->locked = TRUE)
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#endif /* _IMAP_COMMAND_H */
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