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gimp/app/core/gimpimage-new.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995-1999 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 <gdk-pixbuf/gdk-pixbuf.h>
#include <gegl.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpconfig/gimpconfig.h"
#include "core-types.h"
#include "config/gimpcoreconfig.h"
#include "gegl/gimp-babl.h"
#include "gimp.h"
#include "gimpbuffer.h"
#include "gimpchannel.h"
#include "gimpcontext.h"
#include "gimpimage.h"
#include "gimpimage-colormap.h"
#include "gimpimage-new.h"
#include "gimpimage-undo.h"
#include "gimplayer.h"
#include "gimptemplate.h"
#include "gimp-intl.h"
GimpTemplate *
gimp_image_new_get_last_template (Gimp *gimp,
GimpImage *image)
{
GimpTemplate *template;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (image == NULL || GIMP_IS_IMAGE (image), NULL);
template = gimp_template_new ("image new values");
if (image)
{
gimp_config_sync (G_OBJECT (gimp->config->default_image),
G_OBJECT (template), 0);
gimp_template_set_from_image (template, image);
}
else
{
gimp_config_sync (G_OBJECT (gimp->image_new_last_template),
G_OBJECT (template), 0);
}
return template;
}
void
gimp_image_new_set_last_template (Gimp *gimp,
GimpTemplate *template)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (GIMP_IS_TEMPLATE (template));
gimp_config_sync (G_OBJECT (template),
G_OBJECT (gimp->image_new_last_template), 0);
}
GimpImage *
gimp_image_new_from_template (Gimp *gimp,
GimpTemplate *template,
GimpContext *context)
{
GimpImage *image;
GimpLayer *layer;
gint width, height;
gboolean has_alpha;
const gchar *comment;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (GIMP_IS_TEMPLATE (template), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
image = gimp_create_image (gimp,
gimp_template_get_width (template),
gimp_template_get_height (template),
gimp_template_get_base_type (template),
gimp_template_get_precision (template),
FALSE);
gimp_image_undo_disable (image);
comment = gimp_template_get_comment (template);
if (comment)
{
GimpParasite *parasite;
parasite = gimp_parasite_new ("gimp-comment",
GIMP_PARASITE_PERSISTENT,
strlen (comment) + 1,
comment);
gimp_image_parasite_attach (image, parasite);
gimp_parasite_free (parasite);
}
gimp_image_set_resolution (image,
gimp_template_get_resolution_x (template),
gimp_template_get_resolution_y (template));
gimp_image_set_unit (image, gimp_template_get_resolution_unit (template));
width = gimp_image_get_width (image);
height = gimp_image_get_height (image);
if (gimp_template_get_fill_type (template) == GIMP_FILL_TRANSPARENT)
has_alpha = TRUE;
else
has_alpha = FALSE;
layer = gimp_layer_new (image, width, height,
gimp_image_get_layer_format (image, has_alpha),
_("Background"),
GIMP_OPACITY_OPAQUE, GIMP_NORMAL_MODE);
gimp_drawable_fill (GIMP_DRAWABLE (layer),
context, gimp_template_get_fill_type (template));
gimp_image_add_layer (image, layer, NULL, 0, FALSE);
gimp_image_undo_enable (image);
gimp_image_clean_all (image);
return image;
}
GimpImage *
gimp_image_new_from_drawable (Gimp *gimp,
GimpDrawable *drawable)
{
GimpItem *item;
GimpImage *image;
GimpImage *new_image;
GimpLayer *new_layer;
GType new_type;
gint off_x, off_y;
GimpImageBaseType type;
gdouble xres;
gdouble yres;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
item = GIMP_ITEM (drawable);
image = gimp_item_get_image (item);
type = gimp_drawable_get_base_type (drawable);
new_image = gimp_create_image (gimp,
gimp_item_get_width (item),
gimp_item_get_height (item),
type,
gimp_drawable_get_precision (drawable),
TRUE);
gimp_image_undo_disable (new_image);
if (type == GIMP_INDEXED)
gimp_image_set_colormap (new_image,
gimp_image_get_colormap (image),
gimp_image_get_colormap_size (image),
FALSE);
gimp_image_get_resolution (image, &xres, &yres);
gimp_image_set_resolution (new_image, xres, yres);
gimp_image_set_unit (new_image, gimp_image_get_unit (image));
if (GIMP_IS_LAYER (drawable))
new_type = G_TYPE_FROM_INSTANCE (drawable);
else
new_type = GIMP_TYPE_LAYER;
new_layer = GIMP_LAYER (gimp_item_convert (GIMP_ITEM (drawable),
new_image, new_type));
gimp_object_set_name (GIMP_OBJECT (new_layer),
gimp_object_get_name (drawable));
gimp_item_get_offset (GIMP_ITEM (new_layer), &off_x, &off_y);
gimp_item_translate (GIMP_ITEM (new_layer), -off_x, -off_y, FALSE);
gimp_item_set_visible (GIMP_ITEM (new_layer), TRUE, FALSE);
gimp_item_set_linked (GIMP_ITEM (new_layer), FALSE, FALSE);
gimp_layer_set_mode (new_layer, GIMP_NORMAL_MODE, FALSE);
gimp_layer_set_opacity (new_layer, GIMP_OPACITY_OPAQUE, FALSE);
gimp_layer_set_lock_alpha (new_layer, FALSE, FALSE);
gimp_image_add_layer (new_image, new_layer, NULL, 0, TRUE);
gimp_image_undo_enable (new_image);
return new_image;
}
GimpImage *
gimp_image_new_from_component (Gimp *gimp,
GimpImage *image,
GimpChannelType component)
{
GimpImage *new_image;
GimpChannel *channel;
GimpLayer *layer;
const gchar *desc;
gdouble xres;
gdouble yres;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
new_image = gimp_create_image (gimp,
gimp_image_get_width (image),
gimp_image_get_height (image),
GIMP_GRAY,
gimp_image_get_precision (image),
TRUE);
gimp_image_undo_disable (new_image);
gimp_image_get_resolution (image, &xres, &yres);
gimp_image_set_resolution (new_image, xres, yres);
gimp_image_set_unit (new_image, gimp_image_get_unit (image));
channel = gimp_channel_new_from_component (image, component, NULL, NULL);
layer = GIMP_LAYER (gimp_item_convert (GIMP_ITEM (channel),
new_image, GIMP_TYPE_LAYER));
g_object_unref (channel);
gimp_enum_get_value (GIMP_TYPE_CHANNEL_TYPE, component,
NULL, NULL, &desc, NULL);
gimp_object_take_name (GIMP_OBJECT (layer),
g_strdup_printf (_("%s Channel Copy"), desc));
gimp_image_add_layer (new_image, layer, NULL, 0, TRUE);
gimp_image_undo_enable (new_image);
return new_image;
}
GimpImage *
gimp_image_new_from_buffer (Gimp *gimp,
GimpImage *invoke,
GimpBuffer *paste)
{
GimpImage *image;
GimpLayer *layer;
const Babl *format;
gboolean has_alpha;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (invoke == NULL || GIMP_IS_IMAGE (invoke), NULL);
g_return_val_if_fail (GIMP_IS_BUFFER (paste), NULL);
format = gimp_buffer_get_format (paste);
has_alpha = babl_format_has_alpha (format);
/* create a new image (always of type GIMP_RGB) */
image = gimp_create_image (gimp,
gimp_buffer_get_width (paste),
gimp_buffer_get_height (paste),
gimp_babl_format_get_base_type (format),
gimp_babl_format_get_precision (format),
TRUE);
gimp_image_undo_disable (image);
if (invoke)
{
gdouble xres;
gdouble yres;
gimp_image_get_resolution (invoke, &xres, &yres);
gimp_image_set_resolution (image, xres, yres);
gimp_image_set_unit (image, gimp_image_get_unit (invoke));
}
layer = gimp_layer_new_from_buffer (gimp_buffer_get_buffer (paste),
image,
gimp_image_get_layer_format (image,
has_alpha),
_("Pasted Layer"),
GIMP_OPACITY_OPAQUE, GIMP_NORMAL_MODE);
gimp_image_add_layer (image, layer, NULL, 0, TRUE);
gimp_image_undo_enable (image);
return image;
}
GimpImage *
gimp_image_new_from_pixbuf (Gimp *gimp,
GdkPixbuf *pixbuf,
const gchar *layer_name)
{
GimpImage *new_image;
GimpLayer *layer;
GimpImageBaseType base_type;
gboolean has_alpha = FALSE;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), NULL);
switch (gdk_pixbuf_get_n_channels (pixbuf))
{
case 2: has_alpha = TRUE;
case 1: base_type = GIMP_GRAY;
break;
case 4: has_alpha = TRUE;
case 3: base_type = GIMP_RGB;
break;
default:
g_return_val_if_reached (NULL);
}
new_image = gimp_create_image (gimp,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf),
base_type,
GIMP_PRECISION_U8_GAMMA,
FALSE);
gimp_image_undo_disable (new_image);
layer = gimp_layer_new_from_pixbuf (pixbuf, new_image,
gimp_image_get_layer_format (new_image,
has_alpha),
layer_name,
GIMP_OPACITY_OPAQUE, GIMP_NORMAL_MODE);
gimp_image_add_layer (new_image, layer, NULL, 0, TRUE);
gimp_image_undo_enable (new_image);
return new_image;
}
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