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gimp/app/actions/drawable-commands.c

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/* 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 <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "actions-types.h"
#include "core/gimp.h"
#include "core/gimpdrawable-desaturate.h"
#include "core/gimpdrawable-equalize.h"
#include "core/gimpdrawable-invert.h"
#include "core/gimpdrawable-levels.h"
#include "core/gimpimage.h"
#include "core/gimpimage-undo.h"
#include "core/gimpitem-linked.h"
#include "core/gimpitemundo.h"
#include "core/gimplayermask.h"
#include "dialogs/desaturate-dialog.h"
#include "dialogs/offset-dialog.h"
#include "actions.h"
#include "drawable-commands.h"
#include "gimp-intl.h"
/* local function prototypes */
static void desaturate_response (GtkWidget *widget,
gint response_id,
DesaturateDialog *dialog);
/* private variables */
static GimpDesaturateMode desaturate_mode = GIMP_DESATURATE_LIGHTNESS;
/* public functions */
void
drawable_desaturate_cmd_callback (GtkAction *action,
gpointer data)
{
DesaturateDialog *dialog;
GimpImage *image;
GimpDrawable *drawable;
GtkWidget *widget;
return_if_no_drawable (image, drawable, data);
return_if_no_widget (widget, data);
if (! gimp_drawable_is_rgb (drawable))
{
g_message (_("Desaturate operates only on RGB color layers."));
return;
}
dialog = desaturate_dialog_new (drawable, widget, desaturate_mode);
g_signal_connect (dialog->dialog, "response",
G_CALLBACK (desaturate_response),
dialog);
gtk_widget_show (dialog->dialog);
}
void
drawable_equalize_cmd_callback (GtkAction *action,
gpointer data)
{
GimpImage *image;
GimpDrawable *drawable;
return_if_no_drawable (image, drawable, data);
if (gimp_drawable_is_indexed (drawable))
{
g_message (_("Equalize does not operate on indexed layers."));
return;
}
gimp_drawable_equalize (drawable, TRUE);
gimp_image_flush (image);
}
void
drawable_invert_cmd_callback (GtkAction *action,
gpointer data)
{
GimpImage *image;
GimpDrawable *drawable;
return_if_no_drawable (image, drawable, data);
if (gimp_drawable_is_indexed (drawable))
{
g_message (_("Invert does not operate on indexed layers."));
return;
}
gimp_drawable_invert (drawable);
gimp_image_flush (image);
}
void
drawable_levels_stretch_cmd_callback (GtkAction *action,
gpointer data)
{
GimpImage *image;
GimpDrawable *drawable;
GimpContext *context;
return_if_no_drawable (image, drawable, data);
return_if_no_context (context, data);
if (! gimp_drawable_is_rgb (drawable))
{
g_message (_("White Balance operates only on RGB color layers."));
return;
}
gimp_drawable_levels_stretch (drawable, context);
gimp_image_flush (image);
}
void
drawable_offset_cmd_callback (GtkAction *action,
gpointer data)
{
GimpImage *image;
GimpDrawable *drawable;
GtkWidget *widget;
GtkWidget *dialog;
return_if_no_drawable (image, drawable, data);
return_if_no_widget (widget, data);
dialog = offset_dialog_new (drawable, widget);
gtk_widget_show (dialog);
}
void
drawable_linked_cmd_callback (GtkAction *action,
gpointer data)
{
GimpImage *image;
GimpDrawable *drawable;
gboolean linked;
return_if_no_drawable (image, drawable, data);
linked = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action));
if (GIMP_IS_LAYER_MASK (drawable))
drawable =
GIMP_DRAWABLE (gimp_layer_mask_get_layer (GIMP_LAYER_MASK (drawable)));
if (linked != gimp_item_get_linked (GIMP_ITEM (drawable)))
{
GimpUndo *undo;
gboolean push_undo = TRUE;
undo = gimp_image_undo_can_compress (image, GIMP_TYPE_ITEM_UNDO,
GIMP_UNDO_ITEM_LINKED);
if (undo && GIMP_ITEM_UNDO (undo)->item == GIMP_ITEM (drawable))
push_undo = FALSE;
gimp_item_set_linked (GIMP_ITEM (drawable), linked, push_undo);
gimp_image_flush (image);
}
}
void
drawable_visible_cmd_callback (GtkAction *action,
gpointer data)
{
GimpImage *image;
GimpDrawable *drawable;
gboolean visible;
return_if_no_drawable (image, drawable, data);
visible = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action));
if (GIMP_IS_LAYER_MASK (drawable))
drawable =
GIMP_DRAWABLE (gimp_layer_mask_get_layer (GIMP_LAYER_MASK (drawable)));
if (visible != gimp_item_get_visible (GIMP_ITEM (drawable)))
{
GimpUndo *undo;
gboolean push_undo = TRUE;
undo = gimp_image_undo_can_compress (image, GIMP_TYPE_ITEM_UNDO,
GIMP_UNDO_ITEM_VISIBILITY);
if (undo && GIMP_ITEM_UNDO (undo)->item == GIMP_ITEM (drawable))
push_undo = FALSE;
gimp_item_set_visible (GIMP_ITEM (drawable), visible, push_undo);
gimp_image_flush (image);
}
}
void
drawable_flip_cmd_callback (GtkAction *action,
gint value,
gpointer data)
{
GimpImage *image;
GimpDrawable *drawable;
GimpItem *item;
GimpContext *context;
gint off_x, off_y;
gdouble axis = 0.0;
return_if_no_drawable (image, drawable, data);
return_if_no_context (context, data);
item = GIMP_ITEM (drawable);
gimp_item_offsets (item, &off_x, &off_y);
switch ((GimpOrientationType) value)
{
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 (image, GIMP_UNDO_GROUP_TRANSFORM,
GIMP_ITEM_GET_CLASS (item)->flip_desc);
gimp_item_flip (item, context, (GimpOrientationType) value, axis, FALSE);
if (gimp_item_get_linked (item))
{
gimp_item_linked_flip (item, context, (GimpOrientationType) action, axis,
FALSE);
gimp_image_undo_group_end (image);
}
gimp_image_flush (image);
}
void
drawable_rotate_cmd_callback (GtkAction *action,
gint value,
gpointer data)
{
GimpImage *image;
GimpDrawable *drawable;
GimpContext *context;
GimpItem *item;
gint off_x, off_y;
gdouble center_x, center_y;
gboolean clip_result = FALSE;
return_if_no_drawable (image, drawable, data);
return_if_no_context (context, data);
item = GIMP_ITEM (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 (image, GIMP_UNDO_GROUP_TRANSFORM,
GIMP_ITEM_GET_CLASS (item)->rotate_desc);
if (GIMP_IS_CHANNEL (item))
clip_result = TRUE;
gimp_item_rotate (item, context, (GimpRotationType) value,
center_x, center_y, clip_result);
if (gimp_item_get_linked (item))
{
gimp_item_linked_rotate (item, context, (GimpRotationType) value,
center_x, center_y, FALSE);
gimp_image_undo_group_end (image);
}
gimp_image_flush (image);
}
/* private functions */
static void
desaturate_response (GtkWidget *widget,
gint response_id,
DesaturateDialog *dialog)
{
if (response_id == GTK_RESPONSE_OK)
{
GimpDrawable *drawable = dialog->drawable;
GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
/* remember for next invocation of the dialog */
desaturate_mode = dialog->mode;
gimp_drawable_desaturate (drawable, desaturate_mode);
gimp_image_flush (image);
}
gtk_widget_destroy (dialog->dialog);
}
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