imap_cmd_select_prev.c 2.23 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 <http://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 CmdExecuteValue_t select_prev_command_execute(Command_t *parent);

static CommandClass_t select_prev_command_class = {
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   NULL,                        /* select_prev_command_destruct */
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   select_prev_command_execute,
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   NULL,                        /* select_prev_command_undo */
   NULL                         /* select_prev_command_redo */
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};

typedef struct {
   Command_t parent;
   ObjectList_t *list;
} SelectPrevCommand_t;

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Command_t*
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select_prev_command_new(ObjectList_t *list)
{
   SelectPrevCommand_t *command = g_new(SelectPrevCommand_t, 1);
   command->list = list;
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   return command_init(&command->parent, _("Select Previous"),
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                       &select_prev_command_class);
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}

static void
select_one_object(Object_t *obj, gpointer data)
{
   SelectPrevCommand_t *command = (SelectPrevCommand_t*) data;
   Command_t *sub_command;

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   sub_command = (obj->selected)
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      ? select_command_new(obj) : unselect_command_new(obj);
   command_add_subcommand(&command->parent, sub_command);
}

static CmdExecuteValue_t
select_prev_command_execute(Command_t *parent)
{
   SelectPrevCommand_t *command = (SelectPrevCommand_t*) parent;
   ObjectList_t *list = command->list;
   gpointer id;

   id = object_list_add_select_cb(list, select_one_object, command);
   object_list_select_prev(list);
   object_list_remove_select_cb(list, id);
   return CMD_APPEND;
}