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gimp/app/core/gimptemplate.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
*
* gimptemplate.c
* Copyright (C) 2003 Michael Natterer <mitch@gimp.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include <glib-object.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpconfig/gimpconfig.h"
#include "core-types.h"
#include "gimp.h"
#include "gimpcontext.h"
#include "gimpimage.h"
#include "gimplayer.h"
#include "gimpprojection.h"
#include "gimptemplate.h"
#include "gimp-intl.h"
/* The default image aspect ratio is the golden mean. We use
* two adjacent fibonacci numbers for the unstable series and
* some less odd values for the stable version.
*/
#ifdef GIMP_UNSTABLE
#define DEFAULT_IMAGE_WIDTH 377
#define DEFAULT_IMAGE_HEIGHT 233
#else
#define DEFAULT_IMAGE_WIDTH 420
#define DEFAULT_IMAGE_HEIGHT 300
#endif
#define DEFAULT_RESOLUTION 72.0
enum
{
PROP_0,
PROP_WIDTH,
PROP_HEIGHT,
PROP_UNIT,
PROP_XRESOLUTION,
PROP_YRESOLUTION,
PROP_RESOLUTION_UNIT,
PROP_IMAGE_TYPE,
PROP_FILL_TYPE,
PROP_COMMENT,
PROP_FILENAME
};
static void gimp_template_finalize (GObject *object);
static void gimp_template_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_template_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gimp_template_notify (GObject *object,
GParamSpec *pspec);
G_DEFINE_TYPE_WITH_CODE (GimpTemplate, gimp_template, GIMP_TYPE_VIEWABLE,
G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONFIG, NULL))
#define parent_class gimp_template_parent_class
static void
gimp_template_class_init (GimpTemplateClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpViewableClass *viewable_class = GIMP_VIEWABLE_CLASS (klass);
object_class->finalize = gimp_template_finalize;
object_class->set_property = gimp_template_set_property;
object_class->get_property = gimp_template_get_property;
object_class->notify = gimp_template_notify;
viewable_class->default_stock_id = "gimp-template";
GIMP_CONFIG_INSTALL_PROP_INT (object_class, PROP_WIDTH, "width",
NULL,
GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE,
DEFAULT_IMAGE_WIDTH,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_INT (object_class, PROP_HEIGHT, "height",
NULL,
GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE,
DEFAULT_IMAGE_HEIGHT,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_UNIT (object_class, PROP_UNIT, "unit",
N_("The unit used for coordinate display "
"when not in dot-for-dot mode."),
TRUE, FALSE, GIMP_UNIT_PIXEL,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_RESOLUTION (object_class, PROP_XRESOLUTION,
"xresolution",
N_("The horizontal image resolution."),
DEFAULT_RESOLUTION,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_RESOLUTION (object_class, PROP_YRESOLUTION,
"yresolution",
N_("The vertical image resolution."),
DEFAULT_RESOLUTION,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_UNIT (object_class, PROP_RESOLUTION_UNIT,
"resolution-unit",
NULL,
FALSE, FALSE, GIMP_UNIT_INCH,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_ENUM (object_class, PROP_IMAGE_TYPE,
"image-type",
NULL,
GIMP_TYPE_IMAGE_BASE_TYPE, GIMP_RGB,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_ENUM (object_class, PROP_FILL_TYPE,
"fill-type",
NULL,
GIMP_TYPE_FILL_TYPE, GIMP_BACKGROUND_FILL,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_STRING (object_class, PROP_COMMENT,
"comment",
NULL,
NULL,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_STRING (object_class, PROP_FILENAME,
"filename",
NULL,
NULL,
GIMP_PARAM_STATIC_STRINGS);
}
static void
gimp_template_init (GimpTemplate *template)
{
}
static void
gimp_template_finalize (GObject *object)
{
GimpTemplate *template = GIMP_TEMPLATE (object);
if (template->comment)
{
g_free (template->comment);
template->comment = NULL;
}
if (template->filename)
{
g_free (template->filename);
template->filename = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_template_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpTemplate *template = GIMP_TEMPLATE (object);
switch (property_id)
{
case PROP_WIDTH:
template->width = g_value_get_int (value);
break;
case PROP_HEIGHT:
template->height = g_value_get_int (value);
break;
case PROP_UNIT:
template->unit = g_value_get_int (value);
break;
case PROP_XRESOLUTION:
template->xresolution = g_value_get_double (value);
break;
case PROP_YRESOLUTION:
template->yresolution = g_value_get_double (value);
break;
case PROP_RESOLUTION_UNIT:
template->resolution_unit = g_value_get_int (value);
break;
case PROP_IMAGE_TYPE:
template->image_type = g_value_get_enum (value);
break;
case PROP_FILL_TYPE:
template->fill_type = g_value_get_enum (value);
break;
case PROP_COMMENT:
if (template->comment)
g_free (template->comment);
template->comment = g_value_dup_string (value);
break;
case PROP_FILENAME:
if (template->filename)
g_free (template->filename);
template->filename = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_template_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpTemplate *template = GIMP_TEMPLATE (object);
switch (property_id)
{
case PROP_WIDTH:
g_value_set_int (value, template->width);
break;
case PROP_HEIGHT:
g_value_set_int (value, template->height);
break;
case PROP_UNIT:
g_value_set_int (value, template->unit);
break;
case PROP_XRESOLUTION:
g_value_set_double (value, template->xresolution);
break;
case PROP_YRESOLUTION:
g_value_set_double (value, template->yresolution);
break;
case PROP_RESOLUTION_UNIT:
g_value_set_int (value, template->resolution_unit);
break;
case PROP_IMAGE_TYPE:
g_value_set_enum (value, template->image_type);
break;
case PROP_FILL_TYPE:
g_value_set_enum (value, template->fill_type);
break;
case PROP_COMMENT:
g_value_set_string (value, template->comment);
break;
case PROP_FILENAME:
g_value_set_string (value, template->filename);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_template_notify (GObject *object,
GParamSpec *pspec)
{
GimpTemplate *template = GIMP_TEMPLATE (object);
gint channels;
if (G_OBJECT_CLASS (parent_class)->notify)
G_OBJECT_CLASS (parent_class)->notify (object, pspec);
channels = ((template->image_type == GIMP_RGB ? 3 : 1) /* color */ +
(template->fill_type == GIMP_TRANSPARENT_FILL) /* alpha */ +
1 /* selection */);
template->initial_size = ((guint64) channels *
(guint64) template->width *
(guint64) template->height);
template->initial_size +=
gimp_projection_estimate_memsize (template->image_type,
template->width, template->height);
if (! strcmp (pspec->name, "stock-id"))
gimp_viewable_invalidate_preview (GIMP_VIEWABLE (object));
}
/* public functions */
GimpTemplate *
gimp_template_new (const gchar *name)
{
g_return_val_if_fail (name != NULL, NULL);
return g_object_new (GIMP_TYPE_TEMPLATE,
"name", name,
NULL);
}
void
gimp_template_set_from_image (GimpTemplate *template,
GimpImage *image)
{
gdouble xresolution;
gdouble yresolution;
GimpImageBaseType image_type;
const GimpParasite *parasite;
gchar *comment = NULL;
g_return_if_fail (GIMP_IS_TEMPLATE (template));
g_return_if_fail (GIMP_IS_IMAGE (image));
gimp_image_get_resolution (image, &xresolution, &yresolution);
image_type = gimp_image_base_type (image);
if (image_type == GIMP_INDEXED)
image_type = GIMP_RGB;
parasite = gimp_image_parasite_find (image, "gimp-comment");
if (parasite)
comment = g_strndup (gimp_parasite_data (parasite),
gimp_parasite_data_size (parasite));
g_object_set (template,
"width", gimp_image_get_width (image),
"height", gimp_image_get_height (image),
"xresolution", xresolution,
"yresolution", yresolution,
"resolution-unit", gimp_image_get_unit (image),
"image-type", image_type,
"comment", comment,
NULL);
if (comment)
g_free (comment);
}
GimpImage *
gimp_template_create_image (Gimp *gimp,
GimpTemplate *template,
GimpContext *context)
{
GimpImage *image;
GimpLayer *layer;
GimpImageType type;
gint width, height;
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,
template->width, template->height,
template->image_type,
FALSE);
gimp_image_undo_disable (image);
if (template->comment)
{
GimpParasite *parasite;
parasite = gimp_parasite_new ("gimp-comment",
GIMP_PARASITE_PERSISTENT,
strlen (template->comment) + 1,
template->comment);
gimp_image_parasite_attach (image, parasite);
gimp_parasite_free (parasite);
}
gimp_image_set_resolution (image,
template->xresolution, template->yresolution);
gimp_image_set_unit (image, template->resolution_unit);
width = gimp_image_get_width (image);
height = gimp_image_get_height (image);
switch (template->fill_type)
{
case GIMP_TRANSPARENT_FILL:
type = ((template->image_type == GIMP_RGB) ?
GIMP_RGBA_IMAGE : GIMP_GRAYA_IMAGE);
break;
default:
type = ((template->image_type == GIMP_RGB) ?
GIMP_RGB_IMAGE : GIMP_GRAY_IMAGE);
break;
}
layer = gimp_layer_new (image, width, height, type,
_("Background"),
GIMP_OPACITY_OPAQUE, GIMP_NORMAL_MODE);
gimp_drawable_fill_by_type (GIMP_DRAWABLE (layer),
context, template->fill_type);
gimp_image_add_layer (image, layer, 0);
gimp_image_undo_enable (image);
gimp_image_clean_all (image);
gimp_create_display (gimp, image, template->unit, 1.0);
g_object_unref (image);
return image;
}
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