gimp/app/dialogs/resize-dialog.h

/* The GIMP -- an image manipulation program
 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
 *
 * 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.
 */
#ifndef __RESIZE_H__
#define __RESIZE_H__

#include "libgimp/gimpunit.h"
#include "gimage.h"

typedef enum
{
  ScaleWidget,
  ResizeWidget
} ResizeType;

typedef enum
{
  ResizeImage,
  ResizeLayer
} ResizeTarget;

typedef struct _Resize Resize;

struct _Resize
{
  GtkWidget   *resize_shell;

  ResizeType   type;
  ResizeTarget target;

  gint         width;
  gint         height;

  gdouble      resolution_x;
  gdouble      resolution_y;
  GimpUnit     unit;

  gdouble      ratio_x;
  gdouble      ratio_y;

  gint         offset_x;
  gint         offset_y;

  /*  Don't touch this :)  */
  void *       private_part;
};

typedef struct
{
  Resize    *resize;
  GimpImage *gimage;
} ImageResize;

/*  If resolution_x is zero, then don't show resolution modification
 *  parts of the dialog.
 *
 *  If object and signal are non-NULL, then attach the cancel callback to signal.
 *
 *  If cancel_callback is NULL, then the dialog will be destroyed on "Cancel".
 */

Resize * resize_widget_new    (ResizeType    type,
			       ResizeTarget  target,
			       GtkObject    *object,
			       gchar        *signal,
			       gint          width,
			       gint          height,
			       gdouble       resolution_x,
			       gdouble       resolution_y,
			       GimpUnit      unit,
			       gboolean      dot_for_dot,
			       GtkSignalFunc ok_cb,
			       GtkSignalFunc cancel_cb,
			       gpointer      user_data);

/* Layer scaling sanity check and warning dialogs */

gboolean resize_check_layer_scaling (ImageResize *image_resize);
void     resize_scale_implement     (ImageResize *image_resize);

#endif  /*  __RESIZE_H__  */