imap_cmd_copy_object.c 2.44 KB
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/*
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 * This is a plug-in for GIMP.
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 *
 * Generates clickable image maps.
 *
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 * Copyright (C) 1998-2003 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.
 *
 * 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
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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 <gtk/gtk.h>

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#include "imap_commands.h"
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#include "libgimp/stdplugins-intl.h"
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static void copy_object_command_destruct(Command_t *parent);
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static CmdExecuteValue_t copy_object_command_execute(Command_t *parent);
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static void copy_object_command_undo(Command_t *parent);

static CommandClass_t copy_object_command_class = {
   copy_object_command_destruct,
   copy_object_command_execute,
   copy_object_command_undo,
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   NULL                         /* copy_object_command_redo */
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};

typedef struct {
   Command_t parent;
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   Object_t     *obj;
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   ObjectList_t *paste_buffer;
} CopyObjectCommand_t;

Command_t*
copy_object_command_new(Object_t *obj)
{
   CopyObjectCommand_t *command = g_new(CopyObjectCommand_t, 1);
   command->obj = object_ref(obj);
   command->paste_buffer = NULL;
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   return command_init(&command->parent, _("Copy"),
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                       &copy_object_command_class);
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}

static void
copy_object_command_destruct(Command_t *parent)
{
   CopyObjectCommand_t *command = (CopyObjectCommand_t*) parent;
   object_unref(command->obj);
}

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static CmdExecuteValue_t
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copy_object_command_execute(Command_t *parent)
{
   CopyObjectCommand_t *command = (CopyObjectCommand_t*) parent;
   ObjectList_t *paste_buffer = get_paste_buffer();

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   command->paste_buffer = object_list_copy(command->paste_buffer,
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                                            paste_buffer);
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   clear_paste_buffer();
   object_list_append(paste_buffer, object_clone(command->obj));

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   return CMD_APPEND;
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}

static void
copy_object_command_undo(Command_t *parent)
{
   CopyObjectCommand_t *command = (CopyObjectCommand_t*) parent;
   object_list_copy(get_paste_buffer(), command->paste_buffer);
}