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Gimp/app/core/gimpdrawable.c
Michael Natterer 28e1a379e6 app: remove const qualifiers from all object parameters 
They are unreliable because every type checking cast discards them,
they are useless anyway, visual clutter, added inconsistently, and
generally suck. Wanted to do this a long time ago, it was a bad idea
in the first place.
2016-05-19 23:54:14 +02:00

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/* GIMP - The GNU 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <cairo.h>
#include <gegl.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpcolor/gimpcolor.h"
#include "core-types.h"
#include "gegl/gimp-babl.h"
#include "gegl/gimp-gegl-apply-operation.h"
#include "gegl/gimp-gegl-utils.h"
#include "gimp-memsize.h"
#include "gimp-utils.h"
#include "gimpchannel.h"
#include "gimpcontext.h"
#include "gimpdrawable-combine.h"
#include "gimpdrawable-floating-selection.h"
#include "gimpdrawable-preview.h"
#include "gimpdrawable-private.h"
#include "gimpdrawable-shadow.h"
#include "gimpdrawable-transform.h"
#include "gimpfilterstack.h"
#include "gimpimage.h"
#include "gimpimage-colormap.h"
#include "gimpimage-undo-push.h"
#include "gimpmarshal.h"
#include "gimppickable.h"
#include "gimpprogress.h"
#include "gimp-log.h"
#include "gimp-intl.h"
enum
{
UPDATE,
ALPHA_CHANGED,
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_BUFFER
};
/* local function prototypes */
static void gimp_color_managed_iface_init (GimpColorManagedInterface *iface);
static void gimp_pickable_iface_init (GimpPickableInterface *iface);
static void gimp_drawable_dispose (GObject *object);
static void gimp_drawable_finalize (GObject *object);
static void gimp_drawable_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_drawable_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static gint64 gimp_drawable_get_memsize (GimpObject *object,
gint64 *gui_size);
static gboolean gimp_drawable_get_size (GimpViewable *viewable,
gint *width,
gint *height);
static void gimp_drawable_visibility_changed (GimpFilter *filter);
static GeglNode * gimp_drawable_get_node (GimpFilter *filter);
static void gimp_drawable_removed (GimpItem *item);
static GimpItem * gimp_drawable_duplicate (GimpItem *item,
GType new_type);
static void gimp_drawable_scale (GimpItem *item,
gint new_width,
gint new_height,
gint new_offset_x,
gint new_offset_y,
GimpInterpolationType interp_type,
GimpProgress *progress);
static void gimp_drawable_resize (GimpItem *item,
GimpContext *context,
gint new_width,
gint new_height,
gint offset_x,
gint offset_y);
static void gimp_drawable_flip (GimpItem *item,
GimpContext *context,
GimpOrientationType flip_type,
gdouble axis,
gboolean clip_result);
static void gimp_drawable_rotate (GimpItem *item,
GimpContext *context,
GimpRotationType rotate_type,
gdouble center_x,
gdouble center_y,
gboolean clip_result);
static void gimp_drawable_transform (GimpItem *item,
GimpContext *context,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
GimpTransformResize clip_result,
GimpProgress *progress);
static const guint8 *
gimp_drawable_get_icc_profile (GimpColorManaged *managed,
gsize *len);
static GimpColorProfile *
gimp_drawable_get_color_profile (GimpColorManaged *managed);
static void gimp_drawable_profile_changed (GimpColorManaged *managed);
static gboolean gimp_drawable_get_pixel_at (GimpPickable *pickable,
gint x,
gint y,
const Babl *format,
gpointer pixel);
static void gimp_drawable_real_update (GimpDrawable *drawable,
gint x,
gint y,
gint width,
gint height);
static gint64 gimp_drawable_real_estimate_memsize (GimpDrawable *drawable,
GimpComponentType component_type,
gint width,
gint height);
static void gimp_drawable_real_convert_type (GimpDrawable *drawable,
GimpImage *dest_image,
const Babl *new_format,
GimpImageBaseType new_base_type,
GimpPrecision new_precision,
GimpColorProfile *dest_profile,
gint layer_dither_type,
gint mask_dither_type,
gboolean push_undo,
GimpProgress *progress);
static GeglBuffer * gimp_drawable_real_get_buffer (GimpDrawable *drawable);
static void gimp_drawable_real_set_buffer (GimpDrawable *drawable,
gboolean push_undo,
const gchar *undo_desc,
GeglBuffer *buffer,
gint offset_x,
gint offset_y);
static void gimp_drawable_real_push_undo (GimpDrawable *drawable,
const gchar *undo_desc,
GeglBuffer *buffer,
gint x,
gint y,
gint width,
gint height);
static void gimp_drawable_real_swap_pixels (GimpDrawable *drawable,
GeglBuffer *buffer,
gint x,
gint y);
G_DEFINE_TYPE_WITH_CODE (GimpDrawable, gimp_drawable, GIMP_TYPE_ITEM,
G_IMPLEMENT_INTERFACE (GIMP_TYPE_COLOR_MANAGED,
gimp_color_managed_iface_init)
G_IMPLEMENT_INTERFACE (GIMP_TYPE_PICKABLE,
gimp_pickable_iface_init))
#define parent_class gimp_drawable_parent_class
static guint gimp_drawable_signals[LAST_SIGNAL] = { 0 };
static void
gimp_drawable_class_init (GimpDrawableClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpObjectClass *gimp_object_class = GIMP_OBJECT_CLASS (klass);
GimpViewableClass *viewable_class = GIMP_VIEWABLE_CLASS (klass);
GimpFilterClass *filter_class = GIMP_FILTER_CLASS (klass);
GimpItemClass *item_class = GIMP_ITEM_CLASS (klass);
gimp_drawable_signals[UPDATE] =
g_signal_new ("update",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpDrawableClass, update),
NULL, NULL,
gimp_marshal_VOID__INT_INT_INT_INT,
G_TYPE_NONE, 4,
G_TYPE_INT,
G_TYPE_INT,
G_TYPE_INT,
G_TYPE_INT);
gimp_drawable_signals[ALPHA_CHANGED] =
g_signal_new ("alpha-changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpDrawableClass, alpha_changed),
NULL, NULL,
gimp_marshal_VOID__VOID,
G_TYPE_NONE, 0);
object_class->dispose = gimp_drawable_dispose;
object_class->finalize = gimp_drawable_finalize;
object_class->set_property = gimp_drawable_set_property;
object_class->get_property = gimp_drawable_get_property;
gimp_object_class->get_memsize = gimp_drawable_get_memsize;
viewable_class->get_size = gimp_drawable_get_size;
viewable_class->get_new_preview = gimp_drawable_get_new_preview;
viewable_class->get_new_pixbuf = gimp_drawable_get_new_pixbuf;
filter_class->visibility_changed = gimp_drawable_visibility_changed;
filter_class->get_node = gimp_drawable_get_node;
item_class->removed = gimp_drawable_removed;
item_class->duplicate = gimp_drawable_duplicate;
item_class->scale = gimp_drawable_scale;
item_class->resize = gimp_drawable_resize;
item_class->flip = gimp_drawable_flip;
item_class->rotate = gimp_drawable_rotate;
item_class->transform = gimp_drawable_transform;
klass->update = gimp_drawable_real_update;
klass->alpha_changed = NULL;
klass->estimate_memsize = gimp_drawable_real_estimate_memsize;
klass->invalidate_boundary = NULL;
klass->get_active_components = NULL;
klass->get_active_mask = NULL;
klass->convert_type = gimp_drawable_real_convert_type;
klass->apply_buffer = gimp_drawable_real_apply_buffer;
klass->replace_buffer = gimp_drawable_real_replace_buffer;
klass->get_buffer = gimp_drawable_real_get_buffer;
klass->set_buffer = gimp_drawable_real_set_buffer;
klass->push_undo = gimp_drawable_real_push_undo;
klass->swap_pixels = gimp_drawable_real_swap_pixels;
g_object_class_override_property (object_class, PROP_BUFFER, "buffer");
g_type_class_add_private (klass, sizeof (GimpDrawablePrivate));
}
static void
gimp_drawable_init (GimpDrawable *drawable)
{
drawable->private = G_TYPE_INSTANCE_GET_PRIVATE (drawable,
GIMP_TYPE_DRAWABLE,
GimpDrawablePrivate);
drawable->private->filter_stack = gimp_filter_stack_new (GIMP_TYPE_FILTER);
}
/* sorry for the evil casts */
static void
gimp_color_managed_iface_init (GimpColorManagedInterface *iface)
{
iface->get_icc_profile = gimp_drawable_get_icc_profile;
iface->get_color_profile = gimp_drawable_get_color_profile;
iface->profile_changed = gimp_drawable_profile_changed;
}
static void
gimp_pickable_iface_init (GimpPickableInterface *iface)
{
iface->get_image = (GimpImage * (*) (GimpPickable *pickable)) gimp_item_get_image;
iface->get_format = (const Babl * (*) (GimpPickable *pickable)) gimp_drawable_get_format;
iface->get_format_with_alpha = (const Babl * (*) (GimpPickable *pickable)) gimp_drawable_get_format_with_alpha;
iface->get_buffer = (GeglBuffer * (*) (GimpPickable *pickable)) gimp_drawable_get_buffer;
iface->get_pixel_at = gimp_drawable_get_pixel_at;
}
static void
gimp_drawable_dispose (GObject *object)
{
GimpDrawable *drawable = GIMP_DRAWABLE (object);
if (gimp_drawable_get_floating_sel (drawable))
gimp_drawable_detach_floating_sel (drawable);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gimp_drawable_finalize (GObject *object)
{
GimpDrawable *drawable = GIMP_DRAWABLE (object);
if (drawable->private->buffer)
{
g_object_unref (drawable->private->buffer);
drawable->private->buffer = NULL;
}
gimp_drawable_free_shadow_buffer (drawable);
if (drawable->private->source_node)
{
g_object_unref (drawable->private->source_node);
drawable->private->source_node = NULL;
}
if (drawable->private->filter_stack)
{
g_object_unref (drawable->private->filter_stack);
drawable->private->filter_stack = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_drawable_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
switch (property_id)
{
case PROP_BUFFER:
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_drawable_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpDrawable *drawable = GIMP_DRAWABLE (object);
switch (property_id)
{
case PROP_BUFFER:
g_value_set_object (value, drawable->private->buffer);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static gint64
gimp_drawable_get_memsize (GimpObject *object,
gint64 *gui_size)
{
GimpDrawable *drawable = GIMP_DRAWABLE (object);
gint64 memsize = 0;
memsize += gimp_gegl_buffer_get_memsize (gimp_drawable_get_buffer (drawable));
memsize += gimp_gegl_buffer_get_memsize (drawable->private->shadow);
return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
gui_size);
}
static gboolean
gimp_drawable_get_size (GimpViewable *viewable,
gint *width,
gint *height)
{
GimpItem *item = GIMP_ITEM (viewable);
*width = gimp_item_get_width (item);
*height = gimp_item_get_height (item);
return TRUE;
}
static void
gimp_drawable_visibility_changed (GimpFilter *filter)
{
GimpDrawable *drawable = GIMP_DRAWABLE (filter);
GeglNode *node;
/* don't use gimp_filter_get_node() because that would create
* the node.
*/
node = gimp_filter_peek_node (filter);
if (node)
{
GeglNode *input = gegl_node_get_input_proxy (node, "input");
GeglNode *output = gegl_node_get_output_proxy (node, "output");
if (gimp_filter_get_visible (filter))
{
gegl_node_connect_to (input, "output",
drawable->private->mode_node, "input");
gegl_node_connect_to (drawable->private->mode_node, "output",
output, "input");
}
else
{
gegl_node_disconnect (drawable->private->mode_node, "input");
/* The rest handled by GimpFilter */
}
}
GIMP_FILTER_CLASS (parent_class)->visibility_changed (filter);
}
static GeglNode *
gimp_drawable_get_node (GimpFilter *filter)
{
GimpDrawable *drawable = GIMP_DRAWABLE (filter);
GeglNode *node;
GeglNode *input;
GeglNode *output;
node = GIMP_FILTER_CLASS (parent_class)->get_node (filter);
g_warn_if_fail (drawable->private->mode_node == NULL);
drawable->private->mode_node =
gegl_node_new_child (node,
"operation", "gimp:normal-mode",
NULL);
input = gegl_node_get_input_proxy (node, "input");
output = gegl_node_get_output_proxy (node, "output");
if (gimp_filter_get_visible (filter))
{
gegl_node_connect_to (input, "output",
drawable->private->mode_node, "input");
gegl_node_connect_to (drawable->private->mode_node, "output",
output, "input");
}
else
{
/* Handled by GimpFilter */
}
return node;
}
static void
gimp_drawable_removed (GimpItem *item)
{
GimpDrawable *drawable = GIMP_DRAWABLE (item);
gimp_drawable_free_shadow_buffer (drawable);
if (GIMP_ITEM_CLASS (parent_class)->removed)
GIMP_ITEM_CLASS (parent_class)->removed (item);
}
static GimpItem *
gimp_drawable_duplicate (GimpItem *item,
GType new_type)
{
GimpItem *new_item;
g_return_val_if_fail (g_type_is_a (new_type, GIMP_TYPE_DRAWABLE), NULL);
new_item = GIMP_ITEM_CLASS (parent_class)->duplicate (item, new_type);
if (GIMP_IS_DRAWABLE (new_item))
{
GimpDrawable *drawable = GIMP_DRAWABLE (item);
GimpDrawable *new_drawable = GIMP_DRAWABLE (new_item);
if (new_drawable->private->buffer)
g_object_unref (new_drawable->private->buffer);
new_drawable->private->buffer =
gegl_buffer_dup (gimp_drawable_get_buffer (drawable));
}
return new_item;
}
static void
gimp_drawable_scale (GimpItem *item,
gint new_width,
gint new_height,
gint new_offset_x,
gint new_offset_y,
GimpInterpolationType interpolation_type,
GimpProgress *progress)
{
GimpDrawable *drawable = GIMP_DRAWABLE (item);
GeglBuffer *new_buffer;
new_buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
new_width, new_height),
gimp_drawable_get_format (drawable));
gimp_gegl_apply_scale (gimp_drawable_get_buffer (drawable),
progress, C_("undo-type", "Scale"),
new_buffer,
interpolation_type,
((gdouble) new_width /
gimp_item_get_width (item)),
((gdouble) new_height /
gimp_item_get_height (item)));
gimp_drawable_set_buffer_full (drawable, gimp_item_is_attached (item), NULL,
new_buffer,
new_offset_x, new_offset_y);
g_object_unref (new_buffer);
}
static void
gimp_drawable_resize (GimpItem *item,
GimpContext *context,
gint new_width,
gint new_height,
gint offset_x,
gint offset_y)
{
GimpDrawable *drawable = GIMP_DRAWABLE (item);
GeglBuffer *new_buffer;
gint new_offset_x;
gint new_offset_y;
gint copy_x, copy_y;
gint copy_width, copy_height;
gboolean intersect;
/* if the size doesn't change, this is a nop */
if (new_width == gimp_item_get_width (item) &&
new_height == gimp_item_get_height (item) &&
offset_x == 0 &&
offset_y == 0)
return;
new_offset_x = gimp_item_get_offset_x (item) - offset_x;
new_offset_y = gimp_item_get_offset_y (item) - offset_y;
intersect = gimp_rectangle_intersect (gimp_item_get_offset_x (item),
gimp_item_get_offset_y (item),
gimp_item_get_width (item),
gimp_item_get_height (item),
new_offset_x,
new_offset_y,
new_width,
new_height,
&copy_x,
&copy_y,
&copy_width,
&copy_height);
new_buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
new_width, new_height),
gimp_drawable_get_format (drawable));
if (! intersect ||
copy_width != new_width ||
copy_height != new_height)
{
/* Clear the new tiles if needed */
GimpRGB bg;
GeglColor *col;
if (! gimp_drawable_has_alpha (drawable) && ! GIMP_IS_CHANNEL (drawable))
gimp_context_get_background (context, &bg);
else
gimp_rgba_set (&bg, 0.0, 0.0, 0.0, 0.0);
col = gimp_gegl_color_new (&bg);
gegl_buffer_set_color (new_buffer, NULL, col);
g_object_unref (col);
}
if (intersect && copy_width && copy_height)
{
/* Copy the pixels in the intersection */
gegl_buffer_copy (gimp_drawable_get_buffer (drawable),
GEGL_RECTANGLE (copy_x - gimp_item_get_offset_x (item),
copy_y - gimp_item_get_offset_y (item),
copy_width,
copy_height), GEGL_ABYSS_NONE,
new_buffer,
GEGL_RECTANGLE (copy_x - new_offset_x,
copy_y - new_offset_y, 0, 0));
}
gimp_drawable_set_buffer_full (drawable, gimp_item_is_attached (item), NULL,
new_buffer,
new_offset_x, new_offset_y);
g_object_unref (new_buffer);
}
static void
gimp_drawable_flip (GimpItem *item,
GimpContext *context,
GimpOrientationType flip_type,
gdouble axis,
gboolean clip_result)
{
GimpDrawable *drawable = GIMP_DRAWABLE (item);
GeglBuffer *buffer;
GimpColorProfile *buffer_profile;
gint off_x, off_y;
gint new_off_x, new_off_y;
gimp_item_get_offset (item, &off_x, &off_y);
buffer = gimp_drawable_transform_buffer_flip (drawable, context,
gimp_drawable_get_buffer (drawable),
off_x, off_y,
flip_type, axis,
clip_result,
&buffer_profile,
&new_off_x, &new_off_y);
if (buffer)
{
gimp_drawable_transform_paste (drawable, buffer, buffer_profile,
new_off_x, new_off_y, FALSE);
g_object_unref (buffer);
}
}
static void
gimp_drawable_rotate (GimpItem *item,
GimpContext *context,
GimpRotationType rotate_type,
gdouble center_x,
gdouble center_y,
gboolean clip_result)
{
GimpDrawable *drawable = GIMP_DRAWABLE (item);
GeglBuffer *buffer;
GimpColorProfile *buffer_profile;
gint off_x, off_y;
gint new_off_x, new_off_y;
gimp_item_get_offset (item, &off_x, &off_y);
buffer = gimp_drawable_transform_buffer_rotate (drawable, context,
gimp_drawable_get_buffer (drawable),
off_x, off_y,
rotate_type, center_x, center_y,
clip_result,
&buffer_profile,
&new_off_x, &new_off_y);
if (buffer)
{
gimp_drawable_transform_paste (drawable, buffer, buffer_profile,
new_off_x, new_off_y, FALSE);
g_object_unref (buffer);
}
}
static void
gimp_drawable_transform (GimpItem *item,
GimpContext *context,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
GimpTransformResize clip_result,
GimpProgress *progress)
{
GimpDrawable *drawable = GIMP_DRAWABLE (item);
GeglBuffer *buffer;
GimpColorProfile *buffer_profile;
gint off_x, off_y;
gint new_off_x, new_off_y;
gimp_item_get_offset (item, &off_x, &off_y);
buffer = gimp_drawable_transform_buffer_affine (drawable, context,
gimp_drawable_get_buffer (drawable),
off_x, off_y,
matrix, direction,
interpolation_type,
clip_result,
&buffer_profile,
&new_off_x, &new_off_y,
progress);
if (buffer)
{
gimp_drawable_transform_paste (drawable, buffer, buffer_profile,
new_off_x, new_off_y, FALSE);
g_object_unref (buffer);
}
}
static const guint8 *
gimp_drawable_get_icc_profile (GimpColorManaged *managed,
gsize *len)
{
GimpColorProfile *profile = gimp_color_managed_get_color_profile (managed);
return gimp_color_profile_get_icc_profile (profile, len);
}
static GimpColorProfile *
gimp_drawable_get_color_profile (GimpColorManaged *managed)
{
const Babl *format = gimp_drawable_get_format (GIMP_DRAWABLE (managed));
return gimp_babl_format_get_color_profile (format);
}
static void
gimp_drawable_profile_changed (GimpColorManaged *managed)
{
gimp_viewable_invalidate_preview (GIMP_VIEWABLE (managed));
}
static gboolean
gimp_drawable_get_pixel_at (GimpPickable *pickable,
gint x,
gint y,
const Babl *format,
gpointer pixel)
{
GimpDrawable *drawable = GIMP_DRAWABLE (pickable);
/* do not make this a g_return_if_fail() */
if (x < 0 || x >= gimp_item_get_width (GIMP_ITEM (drawable)) ||
y < 0 || y >= gimp_item_get_height (GIMP_ITEM (drawable)))
return FALSE;
gegl_buffer_sample (gimp_drawable_get_buffer (drawable),
x, y, NULL, pixel, format,
GEGL_SAMPLER_NEAREST, GEGL_ABYSS_NONE);
return TRUE;
}
static void
gimp_drawable_real_update (GimpDrawable *drawable,
gint x,
gint y,
gint width,
gint height)
{
gimp_viewable_invalidate_preview (GIMP_VIEWABLE (drawable));
}
static gint64
gimp_drawable_real_estimate_memsize (GimpDrawable *drawable,
GimpComponentType component_type,
gint width,
gint height)
{
GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
gboolean linear = gimp_drawable_get_linear (drawable);
const Babl *format;
format = gimp_image_get_format (image,
gimp_drawable_get_base_type (drawable),
gimp_babl_precision (component_type, linear),
gimp_drawable_has_alpha (drawable));
return (gint64) babl_format_get_bytes_per_pixel (format) * width * height;
}
/* FIXME: this default impl is currently unused because no subclass
* chains up. the goal is to handle the almost identical subclass code
* here again.
*/
static void
gimp_drawable_real_convert_type (GimpDrawable *drawable,
GimpImage *dest_image,
const Babl *new_format,
GimpImageBaseType new_base_type,
GimpPrecision new_precision,
GimpColorProfile *dest_profile,
gint layer_dither_type,
gint mask_dither_type,
gboolean push_undo,
GimpProgress *progress)
{
GeglBuffer *dest_buffer;
dest_buffer =
gegl_buffer_new (GEGL_RECTANGLE (0, 0,
gimp_item_get_width (GIMP_ITEM (drawable)),
gimp_item_get_height (GIMP_ITEM (drawable))),
new_format);
gegl_buffer_copy (gimp_drawable_get_buffer (drawable), NULL, GEGL_ABYSS_NONE,
dest_buffer, NULL);
gimp_drawable_set_buffer (drawable, push_undo, NULL, dest_buffer);
g_object_unref (dest_buffer);
}
static GeglBuffer *
gimp_drawable_real_get_buffer (GimpDrawable *drawable)
{
return drawable->private->buffer;
}
static void
gimp_drawable_real_set_buffer (GimpDrawable *drawable,
gboolean push_undo,
const gchar *undo_desc,
GeglBuffer *buffer,
gint offset_x,
gint offset_y)
{
GimpItem *item = GIMP_ITEM (drawable);
gboolean old_has_alpha;
old_has_alpha = gimp_drawable_has_alpha (drawable);
g_object_freeze_notify (G_OBJECT (drawable));
gimp_drawable_invalidate_boundary (drawable);
if (push_undo)
gimp_image_undo_push_drawable_mod (gimp_item_get_image (item), undo_desc,
drawable, FALSE);
/* ref new before unrefing old, they might be the same */
g_object_ref (buffer);
if (drawable->private->buffer)
g_object_unref (drawable->private->buffer);
drawable->private->buffer = buffer;
if (drawable->private->buffer_source_node)
gegl_node_set (drawable->private->buffer_source_node,
"buffer", gimp_drawable_get_buffer (drawable),
NULL);
gimp_item_set_offset (item, offset_x, offset_y);
gimp_item_set_size (item,
gegl_buffer_get_width (buffer),
gegl_buffer_get_height (buffer));
if (old_has_alpha != gimp_drawable_has_alpha (drawable))
gimp_drawable_alpha_changed (drawable);
g_object_notify (G_OBJECT (drawable), "buffer");
g_object_thaw_notify (G_OBJECT (drawable));
}
static void
gimp_drawable_real_push_undo (GimpDrawable *drawable,
const gchar *undo_desc,
GeglBuffer *buffer,
gint x,
gint y,
gint width,
gint height)
{
if (! buffer)
{
buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0, width, height),
gimp_drawable_get_format (drawable));
gegl_buffer_copy (gimp_drawable_get_buffer (drawable),
GEGL_RECTANGLE (x, y, width, height), GEGL_ABYSS_NONE,
buffer,
GEGL_RECTANGLE (0, 0, 0, 0));
}
else
{
g_object_ref (buffer);
}
gimp_image_undo_push_drawable (gimp_item_get_image (GIMP_ITEM (drawable)),
undo_desc, drawable,
buffer, x, y);
g_object_unref (buffer);
}
static void
gimp_drawable_real_swap_pixels (GimpDrawable *drawable,
GeglBuffer *buffer,
gint x,
gint y)
{
GeglBuffer *tmp;
gint width = gegl_buffer_get_width (buffer);
gint height = gegl_buffer_get_height (buffer);
tmp = gegl_buffer_dup (buffer);
gegl_buffer_copy (gimp_drawable_get_buffer (drawable),
GEGL_RECTANGLE (x, y, width, height), GEGL_ABYSS_NONE,
buffer,
GEGL_RECTANGLE (0, 0, 0, 0));
gegl_buffer_copy (tmp,
GEGL_RECTANGLE (0, 0, width, height), GEGL_ABYSS_NONE,
gimp_drawable_get_buffer (drawable),
GEGL_RECTANGLE (x, y, 0, 0));
g_object_unref (tmp);
gimp_drawable_update (drawable, x, y, width, height);
}
/* public functions */
GimpDrawable *
gimp_drawable_new (GType type,
GimpImage *image,
const gchar *name,
gint offset_x,
gint offset_y,
gint width,
gint height,
const Babl *format)
{
GimpDrawable *drawable;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (g_type_is_a (type, GIMP_TYPE_DRAWABLE), NULL);
g_return_val_if_fail (width > 0 && height > 0, NULL);
g_return_val_if_fail (format != NULL, NULL);
drawable = GIMP_DRAWABLE (gimp_item_new (type,
image, name,
offset_x, offset_y,
width, height));
drawable->private->buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
width, height),
format);
return drawable;
}
gint64
gimp_drawable_estimate_memsize (GimpDrawable *drawable,
GimpComponentType component_type,
gint width,
gint height)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), 0);
return GIMP_DRAWABLE_GET_CLASS (drawable)->estimate_memsize (drawable,
component_type,
width, height);
}
void
gimp_drawable_update (GimpDrawable *drawable,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_signal_emit (drawable, gimp_drawable_signals[UPDATE], 0,
x, y, width, height);
}
void
gimp_drawable_alpha_changed (GimpDrawable *drawable)
{
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_signal_emit (drawable, gimp_drawable_signals[ALPHA_CHANGED], 0);
}
void
gimp_drawable_invalidate_boundary (GimpDrawable *drawable)
{
GimpDrawableClass *drawable_class;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
drawable_class = GIMP_DRAWABLE_GET_CLASS (drawable);
if (drawable_class->invalidate_boundary)
drawable_class->invalidate_boundary (drawable);
}
void
gimp_drawable_get_active_components (GimpDrawable *drawable,
gboolean *active)
{
GimpDrawableClass *drawable_class;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (active != NULL);
drawable_class = GIMP_DRAWABLE_GET_CLASS (drawable);
if (drawable_class->get_active_components)
drawable_class->get_active_components (drawable, active);
}
GimpComponentMask
gimp_drawable_get_active_mask (GimpDrawable *drawable)
{
GimpDrawableClass *drawable_class;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), 0);
drawable_class = GIMP_DRAWABLE_GET_CLASS (drawable);
if (drawable_class->get_active_mask)
return drawable_class->get_active_mask (drawable);
return 0;
}
void
gimp_drawable_convert_type (GimpDrawable *drawable,
GimpImage *dest_image,
GimpImageBaseType new_base_type,
GimpPrecision new_precision,
GimpColorProfile *dest_profile,
gint layer_dither_type,
gint mask_dither_type,
gboolean push_undo,
GimpProgress *progress)
{
const Babl *new_format;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (GIMP_IS_IMAGE (dest_image));
g_return_if_fail (new_base_type != gimp_drawable_get_base_type (drawable) ||
new_precision != gimp_drawable_get_precision (drawable) ||
dest_profile);
g_return_if_fail (dest_profile == NULL || GIMP_IS_COLOR_PROFILE (dest_profile));
g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
if (! gimp_item_is_attached (GIMP_ITEM (drawable)))
push_undo = FALSE;
new_format = gimp_image_get_format (dest_image,
new_base_type,
new_precision,
gimp_drawable_has_alpha (drawable));
GIMP_DRAWABLE_GET_CLASS (drawable)->convert_type (drawable, dest_image,
new_format,
new_base_type,
new_precision,
dest_profile,
layer_dither_type,
mask_dither_type,
push_undo,
progress);
if (progress)
gimp_progress_set_value (progress, 1.0);
}
void
gimp_drawable_apply_buffer (GimpDrawable *drawable,
GeglBuffer *buffer,
const GeglRectangle *buffer_region,
gboolean push_undo,
const gchar *undo_desc,
gdouble opacity,
GimpLayerModeEffects mode,
GeglBuffer *base_buffer,
gint base_x,
gint base_y)
{
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
g_return_if_fail (GEGL_IS_BUFFER (buffer));
g_return_if_fail (buffer_region != NULL);
g_return_if_fail (base_buffer == NULL || GEGL_IS_BUFFER (base_buffer));
GIMP_DRAWABLE_GET_CLASS (drawable)->apply_buffer (drawable, buffer,
buffer_region,
push_undo, undo_desc,
opacity, mode,
base_buffer,
base_x, base_y);
}
void
gimp_drawable_replace_buffer (GimpDrawable *drawable,
GeglBuffer *buffer,
const GeglRectangle *buffer_region,
gboolean push_undo,
const gchar *undo_desc,
gdouble opacity,
GeglBuffer *mask,
const GeglRectangle *mask_region,
gint x,
gint y)
{
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
g_return_if_fail (GEGL_IS_BUFFER (buffer));
g_return_if_fail (GEGL_IS_BUFFER (mask));
GIMP_DRAWABLE_GET_CLASS (drawable)->replace_buffer (drawable, buffer,
buffer_region,
push_undo, undo_desc,
opacity,
mask, mask_region,
x, y);
}
GeglBuffer *
gimp_drawable_get_buffer (GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
return GIMP_DRAWABLE_GET_CLASS (drawable)->get_buffer (drawable);
}
void
gimp_drawable_set_buffer (GimpDrawable *drawable,
gboolean push_undo,
const gchar *undo_desc,
GeglBuffer *buffer)
{
gint offset_x, offset_y;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (GEGL_IS_BUFFER (buffer));
if (! gimp_item_is_attached (GIMP_ITEM (drawable)))
push_undo = FALSE;
gimp_item_get_offset (GIMP_ITEM (drawable), &offset_x, &offset_y);
gimp_drawable_set_buffer_full (drawable, push_undo, undo_desc, buffer,
offset_x, offset_y);
}
void
gimp_drawable_set_buffer_full (GimpDrawable *drawable,
gboolean push_undo,
const gchar *undo_desc,
GeglBuffer *buffer,
gint offset_x,
gint offset_y)
{
GimpItem *item;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (GEGL_IS_BUFFER (buffer));
item = GIMP_ITEM (drawable);
if (! gimp_item_is_attached (GIMP_ITEM (drawable)))
push_undo = FALSE;
if (gimp_item_get_width (item) != gegl_buffer_get_width (buffer) ||
gimp_item_get_height (item) != gegl_buffer_get_height (buffer) ||
gimp_item_get_offset_x (item) != offset_x ||
gimp_item_get_offset_y (item) != offset_y)
{
gimp_drawable_update (drawable,
0, 0,
gimp_item_get_width (item),
gimp_item_get_height (item));
}
g_object_freeze_notify (G_OBJECT (drawable));
GIMP_DRAWABLE_GET_CLASS (drawable)->set_buffer (drawable,
push_undo, undo_desc,
buffer,
offset_x, offset_y);
g_object_thaw_notify (G_OBJECT (drawable));
gimp_drawable_update (drawable,
0, 0,
gimp_item_get_width (item),
gimp_item_get_height (item));
}
GeglNode *
gimp_drawable_get_source_node (GimpDrawable *drawable)
{
GeglNode *filter;
GeglNode *output;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
if (drawable->private->source_node)
return drawable->private->source_node;
drawable->private->source_node = gegl_node_new ();
drawable->private->buffer_source_node =
gegl_node_new_child (drawable->private->source_node,
"operation", "gegl:buffer-source",
"buffer", gimp_drawable_get_buffer (drawable),
NULL);
filter = gimp_filter_stack_get_graph (GIMP_FILTER_STACK (drawable->private->filter_stack));
gegl_node_add_child (drawable->private->source_node, filter);
gegl_node_connect_to (drawable->private->buffer_source_node, "output",
filter, "input");
output = gegl_node_get_output_proxy (drawable->private->source_node, "output");
gegl_node_connect_to (filter, "output",
output, "input");
if (gimp_drawable_get_floating_sel (drawable))
_gimp_drawable_add_floating_sel_filter (drawable);
return drawable->private->source_node;
}
GeglNode *
gimp_drawable_get_mode_node (GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
if (! drawable->private->mode_node)
gimp_filter_get_node (GIMP_FILTER (drawable));
return drawable->private->mode_node;
}
void
gimp_drawable_swap_pixels (GimpDrawable *drawable,
GeglBuffer *buffer,
gint x,
gint y)
{
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (GEGL_IS_BUFFER (buffer));
GIMP_DRAWABLE_GET_CLASS (drawable)->swap_pixels (drawable, buffer, x, y);
}
void
gimp_drawable_push_undo (GimpDrawable *drawable,
const gchar *undo_desc,
GeglBuffer *buffer,
gint x,
gint y,
gint width,
gint height)
{
GimpItem *item;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (buffer == NULL || GEGL_IS_BUFFER (buffer));
item = GIMP_ITEM (drawable);
g_return_if_fail (gimp_item_is_attached (item));
if (! buffer &&
! gimp_rectangle_intersect (x, y,
width, height,
0, 0,
gimp_item_get_width (item),
gimp_item_get_height (item),
&x, &y, &width, &height))
{
g_warning ("%s: tried to push empty region", G_STRFUNC);
return;
}
GIMP_DRAWABLE_GET_CLASS (drawable)->push_undo (drawable, undo_desc,
buffer,
x, y, width, height);
}
const Babl *
gimp_drawable_get_format (GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
return gegl_buffer_get_format (drawable->private->buffer);
}
const Babl *
gimp_drawable_get_format_with_alpha (GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
return gimp_image_get_format (gimp_item_get_image (GIMP_ITEM (drawable)),
gimp_drawable_get_base_type (drawable),
gimp_drawable_get_precision (drawable),
TRUE);
}
const Babl *
gimp_drawable_get_format_without_alpha (GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
return gimp_image_get_format (gimp_item_get_image (GIMP_ITEM (drawable)),
gimp_drawable_get_base_type (drawable),
gimp_drawable_get_precision (drawable),
FALSE);
}
gboolean
gimp_drawable_get_linear (GimpDrawable *drawable)
{
const Babl *format;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
format = gegl_buffer_get_format (drawable->private->buffer);
return gimp_babl_format_get_linear (format);
}
gboolean
gimp_drawable_has_alpha (GimpDrawable *drawable)
{
const Babl *format;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
format = gegl_buffer_get_format (drawable->private->buffer);
return babl_format_has_alpha (format);
}
GimpImageBaseType
gimp_drawable_get_base_type (GimpDrawable *drawable)
{
const Babl *format;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), -1);
format = gegl_buffer_get_format (drawable->private->buffer);
return gimp_babl_format_get_base_type (format);
}
GimpComponentType
gimp_drawable_get_component_type (GimpDrawable *drawable)
{
const Babl *format;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), -1);
format = gegl_buffer_get_format (drawable->private->buffer);
return gimp_babl_format_get_component_type (format);
}
GimpPrecision
gimp_drawable_get_precision (GimpDrawable *drawable)
{
const Babl *format;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), -1);
format = gegl_buffer_get_format (drawable->private->buffer);
return gimp_babl_format_get_precision (format);
}
gboolean
gimp_drawable_is_rgb (GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
return (gimp_drawable_get_base_type (drawable) == GIMP_RGB);
}
gboolean
gimp_drawable_is_gray (GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
return (gimp_drawable_get_base_type (drawable) == GIMP_GRAY);
}
gboolean
gimp_drawable_is_indexed (GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
return (gimp_drawable_get_base_type (drawable) == GIMP_INDEXED);
}
const Babl *
gimp_drawable_get_component_format (GimpDrawable *drawable,
GimpChannelType channel)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
switch (channel)
{
case GIMP_RED_CHANNEL:
return gimp_babl_component_format (GIMP_RGB,
gimp_drawable_get_precision (drawable),
RED);
case GIMP_GREEN_CHANNEL:
return gimp_babl_component_format (GIMP_RGB,
gimp_drawable_get_precision (drawable),
GREEN);
case GIMP_BLUE_CHANNEL:
return gimp_babl_component_format (GIMP_RGB,
gimp_drawable_get_precision (drawable),
BLUE);
case GIMP_ALPHA_CHANNEL:
return gimp_babl_component_format (GIMP_RGB,
gimp_drawable_get_precision (drawable),
ALPHA);
case GIMP_GRAY_CHANNEL:
return gimp_babl_component_format (GIMP_GRAY,
gimp_drawable_get_precision (drawable),
GRAY);
case GIMP_INDEXED_CHANNEL:
return babl_format ("Y u8"); /* will extract grayscale, the best
* we can do here */
}
return NULL;
}
gint
gimp_drawable_get_component_index (GimpDrawable *drawable,
GimpChannelType channel)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), -1);
switch (channel)
{
case GIMP_RED_CHANNEL: return RED;
case GIMP_GREEN_CHANNEL: return GREEN;
case GIMP_BLUE_CHANNEL: return BLUE;
case GIMP_GRAY_CHANNEL: return GRAY;
case GIMP_INDEXED_CHANNEL: return INDEXED;
case GIMP_ALPHA_CHANNEL:
switch (gimp_drawable_get_base_type (drawable))
{
case GIMP_RGB: return ALPHA;
case GIMP_GRAY: return ALPHA_G;
case GIMP_INDEXED: return ALPHA_I;
}
}
return -1;
}
const guchar *
gimp_drawable_get_colormap (GimpDrawable *drawable)
{
GimpImage *image;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
image = gimp_item_get_image (GIMP_ITEM (drawable));
return image ? gimp_image_get_colormap (image) : NULL;
}
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