gimp/app/actions/drawable-commands.c

215 lines
5.7 KiB
C

/* 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.
*/
#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "gui-types.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpdrawable.h"
#include "core/gimpdrawable-desaturate.h"
#include "core/gimpdrawable-equalize.h"
#include "core/gimpdrawable-invert.h"
#include "core/gimpimage.h"
#include "core/gimpimage-undo.h"
#include "core/gimpitem-linked.h"
#include "widgets/gimpitemtreeview.h"
#include "display/gimpdisplay.h"
#include "drawable-commands.h"
#include "offset-dialog.h"
#include "gimp-intl.h"
#define return_if_no_image(gimage,data) \
if (GIMP_IS_DISPLAY (data)) \
gimage = ((GimpDisplay *) data)->gimage; \
else if (GIMP_IS_GIMP (data)) \
gimage = gimp_context_get_image (gimp_get_user_context (GIMP (data))); \
else if (GIMP_IS_ITEM_TREE_VIEW (data)) \
gimage = ((GimpItemTreeView *) data)->gimage; \
else \
gimage = NULL; \
\
if (! gimage) \
return
#define return_if_no_drawable(gimage,drawable,data) \
return_if_no_image (gimage,data); \
drawable = gimp_image_active_drawable (gimage); \
if (! drawable) \
return
/* public functions */
void
drawable_desaturate_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpDrawable *active_drawable;
return_if_no_drawable (gimage, active_drawable, data);
if (! gimp_drawable_is_rgb (active_drawable))
{
g_message (_("Desaturate operates only on RGB color drawables."));
return;
}
gimp_drawable_desaturate (active_drawable);
gimp_image_flush (gimage);
}
void
drawable_invert_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpDrawable *active_drawable;
return_if_no_drawable (gimage, active_drawable, data);
if (gimp_drawable_is_indexed (active_drawable))
{
g_message (_("Invert does not operate on indexed drawables."));
return;
}
gimp_drawable_invert (active_drawable);
gimp_image_flush (gimage);
}
void
drawable_equalize_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpDrawable *active_drawable;
return_if_no_drawable (gimage, active_drawable, data);
if (gimp_drawable_is_indexed (active_drawable))
{
g_message (_("Equalize does not operate on indexed drawables."));
return;
}
gimp_drawable_equalize (active_drawable, TRUE);
gimp_image_flush (gimage);
}
void
drawable_flip_cmd_callback (GtkWidget *widget,
gpointer data,
guint action)
{
GimpImage *gimage;
GimpDrawable *active_drawable;
GimpItem *item;
gint off_x, off_y;
gdouble axis = 0.0;
return_if_no_drawable (gimage, active_drawable, data);
item = GIMP_ITEM (active_drawable);
gimp_item_offsets (item, &off_x, &off_y);
switch ((GimpOrientationType) action)
{
case GIMP_ORIENTATION_HORIZONTAL:
axis = ((gdouble) off_x + (gdouble) gimp_item_width (item) / 2.0);
break;
case GIMP_ORIENTATION_VERTICAL:
axis = ((gdouble) off_y + (gdouble) gimp_item_height (item) / 2.0);
break;
default:
break;
}
if (gimp_item_get_linked (item))
gimp_image_undo_group_start (gimage, GIMP_UNDO_GROUP_TRANSFORM,
_("Flip Layer"));
gimp_item_flip (item, (GimpOrientationType) action, axis, FALSE);
if (gimp_item_get_linked (item))
{
gimp_item_linked_flip (item, (GimpOrientationType) action, axis, FALSE);
gimp_image_undo_group_end (gimage);
}
gimp_image_flush (gimage);
}
void
drawable_rotate_cmd_callback (GtkWidget *widget,
gpointer data,
guint action)
{
GimpImage *gimage;
GimpDrawable *active_drawable;
GimpItem *item;
gint off_x, off_y;
gdouble center_x, center_y;
return_if_no_drawable (gimage, active_drawable, data);
item = GIMP_ITEM (active_drawable);
gimp_item_offsets (item, &off_x, &off_y);
center_x = ((gdouble) off_x + (gdouble) gimp_item_width (item) / 2.0);
center_y = ((gdouble) off_y + (gdouble) gimp_item_height (item) / 2.0);
if (gimp_item_get_linked (item))
gimp_image_undo_group_start (gimage, GIMP_UNDO_GROUP_TRANSFORM,
_("Rotate Layer"));
gimp_item_rotate (item, (GimpRotationType) action, center_x, center_y, FALSE);
if (gimp_item_get_linked (item))
{
gimp_item_linked_rotate (item, (GimpRotationType) action,
center_x, center_y, FALSE);
gimp_image_undo_group_end (gimage);
}
gimp_image_flush (gimage);
}
void
drawable_offset_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
GimpDrawable *active_drawable;
return_if_no_drawable (gimage, active_drawable, data);
offset_dialog_create (active_drawable);
}