Files
gimp/app/core/gimpdrawable.c
Jehan 047265333c app: better handle drawable and image update for line art computation.
The "update" signal on drawable or projection can actually be emitted
many times for a single painting event. Just add new signals ("painted"
on GimpDrawable and "rendered" on GimpProjection) which are emitted once
for a single update (from user point of view), at the end, after actual
rendering is done (i.e. after the various "update" signals).

Also better support the sample merge vs current drawable paths for
bucket fill.
2018-11-19 14:18:18 +01:00

1833 lines
65 KiB
C

/* 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 <https://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 "libgimpmath/gimpmath.h"
#include "core-types.h"
#include "gegl/gimp-babl.h"
#include "gegl/gimp-gegl-apply-operation.h"
#include "gegl/gimp-gegl-loops.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-fill.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"
#define PAINT_COPY_CHUNK_WIDTH 128
#define PAINT_COPY_CHUNK_HEIGHT 128
#define PAINT_UPDATE_CHUNK_WIDTH 32
#define PAINT_UPDATE_CHUNK_HEIGHT 32
enum
{
UPDATE,
PAINTED,
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 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,
GimpFillType fill_type,
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_get_pixel_average (GimpPickable *pickable,
const GeglRectangle *rect,
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,
GimpColorProfile *src_profile,
GimpColorProfile *dest_profile,
GeglDitherMethod layer_dither_type,
GeglDitherMethod 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);
static GeglNode * gimp_drawable_real_get_source_node (GimpDrawable *drawable);
G_DEFINE_TYPE_WITH_CODE (GimpDrawable, gimp_drawable, GIMP_TYPE_ITEM,
G_ADD_PRIVATE (GimpDrawable)
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);
/**
* GimpDrawable::update:
* @drawable: the object which received the signal.
* @x:
* @y:
* @width:
* @height:
*
* This signal is emitted when a region of the drawable is updated.
**/
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);
/**
* GimpDrawable::painted:
* @drawable: the object which received the signal.
*
* This signal is emitted when the drawable has been painted. Unlike
* the "update" signal, it will be emitted once for a single paint
* event (whereas several "update" signals could be emitted
* sequentially for various regions of the drawable).
**/
gimp_drawable_signals[PAINTED] =
g_signal_new ("painted",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpDrawableClass, painted),
NULL, NULL,
gimp_marshal_VOID__VOID,
G_TYPE_NONE, 0);
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->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;
klass->get_source_node = gimp_drawable_real_get_source_node;
g_object_class_override_property (object_class, PROP_BUFFER, "buffer");
}
static void
gimp_drawable_init (GimpDrawable *drawable)
{
drawable->private = gimp_drawable_get_instance_private (drawable);
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;
iface->get_pixel_average = gimp_drawable_get_pixel_average;
}
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);
while (drawable->private->paint_count)
gimp_drawable_end_paint (drawable);
g_clear_object (&drawable->private->buffer);
g_clear_object (&drawable->private->format_profile);
gimp_drawable_free_shadow_buffer (drawable);
g_clear_object (&drawable->private->source_node);
g_clear_object (&drawable->private->buffer_source_node);
g_clear_object (&drawable->private->filter_stack);
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 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",
NULL);
input = gegl_node_get_input_proxy (node, "input");
output = gegl_node_get_output_proxy (node, "output");
gegl_node_connect_to (input, "output",
drawable->private->mode_node, "input");
gegl_node_connect_to (drawable->private->mode_node, "output",
output, "input");
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);
GeglBuffer *new_buffer;
new_buffer = gegl_buffer_dup (gimp_drawable_get_buffer (drawable));
gimp_drawable_set_buffer (new_drawable, FALSE, NULL, new_buffer);
g_object_unref (new_buffer);
}
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,
TRUE);
g_object_unref (new_buffer);
}
static void
gimp_drawable_resize (GimpItem *item,
GimpContext *context,
GimpFillType fill_type,
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 buffer if needed */
GimpRGB color;
GimpPattern *pattern;
gimp_get_fill_params (context, fill_type, &color, &pattern, NULL);
gimp_drawable_fill_buffer (drawable, new_buffer,
&color, pattern, 0, 0);
}
if (intersect && copy_width && copy_height)
{
/* Copy the pixels in the intersection */
gimp_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,
TRUE);
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)
{
GimpDrawable *drawable = GIMP_DRAWABLE (managed);
const Babl *format = gimp_drawable_get_format (drawable);
if (! drawable->private->format_profile)
drawable->private->format_profile =
gimp_babl_format_get_color_profile (format);
return drawable->private->format_profile;
}
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_get_pixel_average (GimpPickable *pickable,
const GeglRectangle *rect,
const Babl *format,
gpointer pixel)
{
GimpDrawable *drawable = GIMP_DRAWABLE (pickable);
return gimp_gegl_average_color (gimp_drawable_get_buffer (drawable),
rect, TRUE, GEGL_ABYSS_NONE, format, pixel);
}
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));
GimpTRCType trc = gimp_drawable_get_trc (drawable);
const Babl *format;
format = gimp_image_get_format (image,
gimp_drawable_get_base_type (drawable),
gimp_babl_precision (component_type, trc),
gimp_drawable_has_alpha (drawable),
NULL);
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,
GimpColorProfile *src_profile,
GimpColorProfile *dest_profile,
GeglDitherMethod layer_dither_type,
GeglDitherMethod 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);
gimp_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);
gint old_has_alpha = -1;
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);
if (drawable->private->buffer)
old_has_alpha = gimp_drawable_has_alpha (drawable);
g_set_object (&drawable->private->buffer, buffer);
g_clear_object (&drawable->private->format_profile);
if (drawable->private->buffer_source_node)
gegl_node_set (drawable->private->buffer_source_node,
"buffer", gimp_drawable_get_buffer (drawable),
NULL);
if (drawable->private->convert_format)
{
const Babl *format = gimp_drawable_get_format (drawable);
if (babl_format_is_palette (format))
gegl_node_set (drawable->private->convert_format,
"operation", "gegl:convert-format",
"format", gimp_drawable_get_format (drawable),
NULL);
else
gegl_node_set (drawable->private->convert_format,
"operation", "gegl:nop",
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 (gimp_drawable_has_alpha (drawable) != old_has_alpha)
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));
gimp_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);
gimp_gegl_buffer_copy (gimp_drawable_get_buffer (drawable),
GEGL_RECTANGLE (x, y, width, height), GEGL_ABYSS_NONE,
buffer,
GEGL_RECTANGLE (0, 0, 0, 0));
gimp_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);
}
static GeglNode *
gimp_drawable_real_get_source_node (GimpDrawable *drawable)
{
g_warn_if_fail (drawable->private->buffer_source_node == NULL);
drawable->private->buffer_source_node =
gegl_node_new_child (NULL,
"operation", "gimp:buffer-source-validate",
"buffer", gimp_drawable_get_buffer (drawable),
NULL);
return g_object_ref (drawable->private->buffer_source_node);
}
/* 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;
GeglBuffer *buffer;
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));
buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0, width, height), format);
gimp_drawable_set_buffer (drawable, FALSE, NULL, buffer);
g_object_unref (buffer);
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));
if (width == -1)
width = gimp_item_get_width (GIMP_ITEM (drawable));
if (height == -1)
height = gimp_item_get_height (GIMP_ITEM (drawable));
if (drawable->private->paint_count == 0)
{
g_signal_emit (drawable, gimp_drawable_signals[UPDATE], 0,
x, y, width, height);
g_signal_emit (drawable, gimp_drawable_signals[PAINTED], 0);
}
else
{
GeglRectangle rect;
rect.x = floor ((gdouble) x / PAINT_COPY_CHUNK_WIDTH) * PAINT_COPY_CHUNK_WIDTH;
rect.y = floor ((gdouble) y / PAINT_COPY_CHUNK_HEIGHT) * PAINT_COPY_CHUNK_HEIGHT;
rect.width = ceil ((gdouble) (x + width) / PAINT_COPY_CHUNK_WIDTH) * PAINT_COPY_CHUNK_WIDTH - rect.x;
rect.height = ceil ((gdouble) (y + height) / PAINT_COPY_CHUNK_HEIGHT) * PAINT_COPY_CHUNK_HEIGHT - rect.y;
if (gegl_rectangle_intersect (
&rect,
&rect,
GEGL_RECTANGLE (0, 0,
gimp_item_get_width (GIMP_ITEM (drawable)),
gimp_item_get_height (GIMP_ITEM (drawable)))))
{
if (drawable->private->paint_copy_region)
{
cairo_region_union_rectangle (
drawable->private->paint_copy_region,
(const cairo_rectangle_int_t *) &rect);
}
else
{
drawable->private->paint_copy_region =
cairo_region_create_rectangle (
(const cairo_rectangle_int_t *) &rect);
}
rect.x = floor ((gdouble) x / PAINT_UPDATE_CHUNK_WIDTH) * PAINT_UPDATE_CHUNK_WIDTH;
rect.y = floor ((gdouble) y / PAINT_UPDATE_CHUNK_HEIGHT) * PAINT_UPDATE_CHUNK_HEIGHT;
rect.width = ceil ((gdouble) (x + width) / PAINT_UPDATE_CHUNK_WIDTH) * PAINT_UPDATE_CHUNK_WIDTH - rect.x;
rect.height = ceil ((gdouble) (y + height) / PAINT_UPDATE_CHUNK_HEIGHT) * PAINT_UPDATE_CHUNK_HEIGHT - rect.y;
if (drawable->private->paint_update_region)
{
cairo_region_union_rectangle (
drawable->private->paint_update_region,
(const cairo_rectangle_int_t *) &rect);
}
else
{
drawable->private->paint_update_region =
cairo_region_create_rectangle (
(const cairo_rectangle_int_t *) &rect);
}
}
}
}
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,
gboolean new_has_alpha,
GimpColorProfile *src_profile,
GimpColorProfile *dest_profile,
GeglDitherMethod layer_dither_type,
GeglDitherMethod mask_dither_type,
gboolean push_undo,
GimpProgress *progress)
{
const Babl *old_format;
const Babl *new_format;
gint old_bits;
gint new_bits;
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) ||
new_has_alpha != gimp_drawable_has_alpha (drawable) ||
dest_profile);
g_return_if_fail (src_profile == NULL || GIMP_IS_COLOR_PROFILE (src_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;
old_format = gimp_drawable_get_format (drawable);
new_format = gimp_image_get_format (dest_image,
new_base_type,
new_precision,
new_has_alpha,
NULL /* handled by layer */);
old_bits = (babl_format_get_bytes_per_pixel (old_format) * 8 /
babl_format_get_n_components (old_format));
new_bits = (babl_format_get_bytes_per_pixel (new_format) * 8 /
babl_format_get_n_components (new_format));
if (old_bits <= new_bits || new_bits > 16)
{
/* don't dither if we are converting to a higher bit depth,
* or to more than 16 bits (gegl:dither only does
* 16 bits).
*/
layer_dither_type = GEGL_DITHER_NONE;
mask_dither_type = GEGL_DITHER_NONE;
}
GIMP_DRAWABLE_GET_CLASS (drawable)->convert_type (drawable, dest_image,
new_format,
src_profile,
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,
GimpLayerMode mode,
GimpLayerColorSpace blend_space,
GimpLayerColorSpace composite_space,
GimpLayerCompositeMode composite_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,
blend_space,
composite_space,
composite_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);
if (drawable->private->paint_count == 0)
return GIMP_DRAWABLE_GET_CLASS (drawable)->get_buffer (drawable);
else
return drawable->private->paint_buffer;
}
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, TRUE);
}
void
gimp_drawable_set_buffer_full (GimpDrawable *drawable,
gboolean push_undo,
const gchar *undo_desc,
GeglBuffer *buffer,
gint offset_x,
gint offset_y,
gboolean update)
{
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 (update &&
(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, -1, -1);
}
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));
if (update)
gimp_drawable_update (drawable, 0, 0, -1, -1);
}
void
gimp_drawable_steal_buffer (GimpDrawable *drawable,
GimpDrawable *src_drawable)
{
GeglBuffer *buffer;
GeglBuffer *replacement_buffer;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (GIMP_IS_DRAWABLE (src_drawable));
buffer = gimp_drawable_get_buffer (src_drawable);
g_return_if_fail (buffer != NULL);
g_object_ref (buffer);
replacement_buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0, 1, 1),
gegl_buffer_get_format (buffer));
gimp_drawable_set_buffer (src_drawable, FALSE, NULL, replacement_buffer);
gimp_drawable_set_buffer (drawable, FALSE, NULL, buffer);
g_object_unref (replacement_buffer);
g_object_unref (buffer);
}
void
gimp_drawable_set_format (GimpDrawable *drawable,
const Babl *format,
gboolean copy_buffer,
gboolean push_undo)
{
GimpItem *item;
GeglBuffer *buffer;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (format != NULL);
g_return_if_fail (format != gimp_drawable_get_format (drawable));
g_return_if_fail (gimp_babl_format_get_base_type (format) ==
gimp_drawable_get_base_type (drawable));
g_return_if_fail (gimp_babl_format_get_component_type (format) ==
gimp_drawable_get_component_type (drawable));
g_return_if_fail (babl_format_has_alpha (format) ==
gimp_drawable_has_alpha (drawable));
g_return_if_fail (push_undo == FALSE || copy_buffer == TRUE);
item = GIMP_ITEM (drawable);
if (! gimp_item_is_attached (item))
push_undo = FALSE;
if (push_undo)
gimp_image_undo_push_drawable_format (gimp_item_get_image (item),
NULL, drawable);
buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
gimp_item_get_width (item),
gimp_item_get_height (item)),
format);
if (copy_buffer)
{
gegl_buffer_set_format (buffer, gimp_drawable_get_format (drawable));
gimp_gegl_buffer_copy (gimp_drawable_get_buffer (drawable),
NULL, GEGL_ABYSS_NONE,
buffer, NULL);
gegl_buffer_set_format (buffer, NULL);
}
gimp_drawable_set_buffer (drawable, FALSE, NULL, buffer);
g_object_unref (buffer);
}
GeglNode *
gimp_drawable_get_source_node (GimpDrawable *drawable)
{
const Babl *format;
GeglNode *input;
GeglNode *source;
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 ();
input = gegl_node_get_input_proxy (drawable->private->source_node, "input");
source = GIMP_DRAWABLE_GET_CLASS (drawable)->get_source_node (drawable);
gegl_node_add_child (drawable->private->source_node, source);
g_object_unref (source);
if (gegl_node_has_pad (source, "input"))
{
gegl_node_connect_to (input, "output",
source, "input");
}
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 (source, "output",
filter, "input");
format = gimp_drawable_get_format (drawable);
if (babl_format_is_palette (format))
drawable->private->convert_format =
gegl_node_new_child (drawable->private->source_node,
"operation", "gegl:convert-format",
"format", gimp_drawable_get_format (drawable),
NULL);
else
drawable->private->convert_format =
gegl_node_new_child (drawable->private->source_node,
"operation", "gegl:nop",
NULL);
gegl_node_connect_to (filter, "output",
drawable->private->convert_format, "input");
output = gegl_node_get_output_proxy (drawable->private->source_node, "output");
gegl_node_connect_to (drawable->private->convert_format, "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_space (GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
return babl_format_get_space (gimp_drawable_get_format (drawable));
}
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,
gimp_drawable_get_space (drawable));
}
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,
gimp_drawable_get_space (drawable));
}
GimpTRCType
gimp_drawable_get_trc (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_trc (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_CHANNEL_RED:
return gimp_babl_component_format (GIMP_RGB,
gimp_drawable_get_precision (drawable),
RED);
case GIMP_CHANNEL_GREEN:
return gimp_babl_component_format (GIMP_RGB,
gimp_drawable_get_precision (drawable),
GREEN);
case GIMP_CHANNEL_BLUE:
return gimp_babl_component_format (GIMP_RGB,
gimp_drawable_get_precision (drawable),
BLUE);
case GIMP_CHANNEL_ALPHA:
return gimp_babl_component_format (GIMP_RGB,
gimp_drawable_get_precision (drawable),
ALPHA);
case GIMP_CHANNEL_GRAY:
return gimp_babl_component_format (GIMP_GRAY,
gimp_drawable_get_precision (drawable),
GRAY);
case GIMP_CHANNEL_INDEXED:
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_CHANNEL_RED: return RED;
case GIMP_CHANNEL_GREEN: return GREEN;
case GIMP_CHANNEL_BLUE: return BLUE;
case GIMP_CHANNEL_GRAY: return GRAY;
case GIMP_CHANNEL_INDEXED: return INDEXED;
case GIMP_CHANNEL_ALPHA:
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;
}
void
gimp_drawable_start_paint (GimpDrawable *drawable)
{
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
if (drawable->private->paint_count == 0)
{
GeglBuffer *buffer = gimp_drawable_get_buffer (drawable);
g_return_if_fail (buffer != NULL);
g_return_if_fail (drawable->private->paint_buffer == NULL);
g_return_if_fail (drawable->private->paint_copy_region == NULL);
g_return_if_fail (drawable->private->paint_update_region == NULL);
drawable->private->paint_buffer = gegl_buffer_dup (buffer);
}
drawable->private->paint_count++;
}
gboolean
gimp_drawable_end_paint (GimpDrawable *drawable)
{
gboolean result = FALSE;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
g_return_val_if_fail (drawable->private->paint_count > 0, FALSE);
if (drawable->private->paint_count == 1)
{
result = gimp_drawable_flush_paint (drawable);
g_clear_object (&drawable->private->paint_buffer);
}
drawable->private->paint_count--;
return result;
}
gboolean
gimp_drawable_flush_paint (GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
g_return_val_if_fail (drawable->private->paint_count > 0, FALSE);
if (drawable->private->paint_copy_region)
{
GeglBuffer *buffer;
gint n_rects;
gint i;
buffer = GIMP_DRAWABLE_GET_CLASS (drawable)->get_buffer (drawable);
g_return_val_if_fail (buffer != NULL, FALSE);
g_return_val_if_fail (drawable->private->paint_buffer != NULL, FALSE);
n_rects = cairo_region_num_rectangles (
drawable->private->paint_copy_region);
for (i = 0; i < n_rects; i++)
{
GeglRectangle rect;
cairo_region_get_rectangle (drawable->private->paint_copy_region,
i, (cairo_rectangle_int_t *) &rect);
gimp_gegl_buffer_copy (
drawable->private->paint_buffer, &rect, GEGL_ABYSS_NONE,
buffer, NULL);
}
g_clear_pointer (&drawable->private->paint_copy_region,
cairo_region_destroy);
n_rects = cairo_region_num_rectangles (
drawable->private->paint_update_region);
for (i = 0; i < n_rects; i++)
{
GeglRectangle rect;
cairo_region_get_rectangle (drawable->private->paint_update_region,
i, (cairo_rectangle_int_t *) &rect);
g_signal_emit (drawable, gimp_drawable_signals[UPDATE], 0,
rect.x, rect.y, rect.width, rect.height);
}
g_clear_pointer (&drawable->private->paint_update_region,
cairo_region_destroy);
return TRUE;
}
return FALSE;
}
gboolean
gimp_drawable_is_painting (GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
return drawable->private->paint_count > 0;
}