mirror of https://github.com/GNOME/gimp.git
316 lines
10 KiB
C
316 lines
10 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 <http://www.gnu.org/licenses/>.
|
||
*/
|
||
|
||
#include "config.h"
|
||
|
||
#include <cairo.h>
|
||
#include <gegl.h>
|
||
#include <gdk-pixbuf/gdk-pixbuf.h>
|
||
|
||
#include "libgimpcolor/gimpcolor.h"
|
||
|
||
#include "core-types.h"
|
||
|
||
#include "gegl/gimp-babl.h"
|
||
|
||
#include "gimp-utils.h"
|
||
#include "gimpbuffer.h"
|
||
#include "gimpimage.h"
|
||
#include "gimptempbuf.h"
|
||
|
||
|
||
static void gimp_buffer_finalize (GObject *object);
|
||
|
||
static gint64 gimp_buffer_get_memsize (GimpObject *object,
|
||
gint64 *gui_size);
|
||
|
||
static gboolean gimp_buffer_get_size (GimpViewable *viewable,
|
||
gint *width,
|
||
gint *height);
|
||
static void gimp_buffer_get_preview_size (GimpViewable *viewable,
|
||
gint size,
|
||
gboolean is_popup,
|
||
gboolean dot_for_dot,
|
||
gint *popup_width,
|
||
gint *popup_height);
|
||
static gboolean gimp_buffer_get_popup_size (GimpViewable *viewable,
|
||
gint width,
|
||
gint height,
|
||
gboolean dot_for_dot,
|
||
gint *popup_width,
|
||
gint *popup_height);
|
||
static GimpTempBuf * gimp_buffer_get_new_preview (GimpViewable *viewable,
|
||
GimpContext *context,
|
||
gint width,
|
||
gint height);
|
||
static gchar * gimp_buffer_get_description (GimpViewable *viewable,
|
||
gchar **tooltip);
|
||
|
||
|
||
G_DEFINE_TYPE (GimpBuffer, gimp_buffer, GIMP_TYPE_VIEWABLE)
|
||
|
||
#define parent_class gimp_buffer_parent_class
|
||
|
||
|
||
static void
|
||
gimp_buffer_class_init (GimpBufferClass *klass)
|
||
{
|
||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||
GimpObjectClass *gimp_object_class = GIMP_OBJECT_CLASS (klass);
|
||
GimpViewableClass *viewable_class = GIMP_VIEWABLE_CLASS (klass);
|
||
|
||
object_class->finalize = gimp_buffer_finalize;
|
||
|
||
gimp_object_class->get_memsize = gimp_buffer_get_memsize;
|
||
|
||
viewable_class->default_icon_name = "gtk-paste";
|
||
viewable_class->get_size = gimp_buffer_get_size;
|
||
viewable_class->get_preview_size = gimp_buffer_get_preview_size;
|
||
viewable_class->get_popup_size = gimp_buffer_get_popup_size;
|
||
viewable_class->get_new_preview = gimp_buffer_get_new_preview;
|
||
viewable_class->get_description = gimp_buffer_get_description;
|
||
}
|
||
|
||
static void
|
||
gimp_buffer_init (GimpBuffer *buffer)
|
||
{
|
||
}
|
||
|
||
static void
|
||
gimp_buffer_finalize (GObject *object)
|
||
{
|
||
GimpBuffer *buffer = GIMP_BUFFER (object);
|
||
|
||
if (buffer->buffer)
|
||
{
|
||
g_object_unref (buffer->buffer);
|
||
buffer->buffer = NULL;
|
||
}
|
||
|
||
G_OBJECT_CLASS (parent_class)->finalize (object);
|
||
}
|
||
|
||
static gint64
|
||
gimp_buffer_get_memsize (GimpObject *object,
|
||
gint64 *gui_size)
|
||
{
|
||
GimpBuffer *buffer = GIMP_BUFFER (object);
|
||
gint64 memsize = 0;
|
||
|
||
memsize += gimp_gegl_buffer_get_memsize (buffer->buffer);
|
||
|
||
return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
|
||
gui_size);
|
||
}
|
||
|
||
static gboolean
|
||
gimp_buffer_get_size (GimpViewable *viewable,
|
||
gint *width,
|
||
gint *height)
|
||
{
|
||
GimpBuffer *buffer = GIMP_BUFFER (viewable);
|
||
|
||
*width = gimp_buffer_get_width (buffer);
|
||
*height = gimp_buffer_get_height (buffer);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static void
|
||
gimp_buffer_get_preview_size (GimpViewable *viewable,
|
||
gint size,
|
||
gboolean is_popup,
|
||
gboolean dot_for_dot,
|
||
gint *width,
|
||
gint *height)
|
||
{
|
||
GimpBuffer *buffer = GIMP_BUFFER (viewable);
|
||
|
||
gimp_viewable_calc_preview_size (gimp_buffer_get_width (buffer),
|
||
gimp_buffer_get_height (buffer),
|
||
size,
|
||
size,
|
||
dot_for_dot, 1.0, 1.0,
|
||
width,
|
||
height,
|
||
NULL);
|
||
}
|
||
|
||
static gboolean
|
||
gimp_buffer_get_popup_size (GimpViewable *viewable,
|
||
gint width,
|
||
gint height,
|
||
gboolean dot_for_dot,
|
||
gint *popup_width,
|
||
gint *popup_height)
|
||
{
|
||
GimpBuffer *buffer;
|
||
gint buffer_width;
|
||
gint buffer_height;
|
||
|
||
buffer = GIMP_BUFFER (viewable);
|
||
buffer_width = gimp_buffer_get_width (buffer);
|
||
buffer_height = gimp_buffer_get_height (buffer);
|
||
|
||
if (buffer_width > width || buffer_height > height)
|
||
{
|
||
gboolean scaling_up;
|
||
|
||
gimp_viewable_calc_preview_size (buffer_width,
|
||
buffer_height,
|
||
width * 2,
|
||
height * 2,
|
||
dot_for_dot, 1.0, 1.0,
|
||
popup_width,
|
||
popup_height,
|
||
&scaling_up);
|
||
|
||
if (scaling_up)
|
||
{
|
||
*popup_width = buffer_width;
|
||
*popup_height = buffer_height;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static GimpTempBuf *
|
||
gimp_buffer_get_new_preview (GimpViewable *viewable,
|
||
GimpContext *context,
|
||
gint width,
|
||
gint height)
|
||
{
|
||
GimpBuffer *buffer = GIMP_BUFFER (viewable);
|
||
const Babl *format = gimp_buffer_get_format (buffer);
|
||
GimpTempBuf *preview;
|
||
|
||
if (babl_format_is_palette (format))
|
||
format = gimp_babl_format (GIMP_RGB, GIMP_PRECISION_U8_GAMMA,
|
||
babl_format_has_alpha (format));
|
||
else
|
||
format = gimp_babl_format (gimp_babl_format_get_base_type (format),
|
||
GIMP_PRECISION_U8_GAMMA,
|
||
babl_format_has_alpha (format));
|
||
|
||
preview = gimp_temp_buf_new (width, height, format);
|
||
|
||
gegl_buffer_get (buffer->buffer, GEGL_RECTANGLE (0, 0, width, height),
|
||
MIN ((gdouble) width / (gdouble) gimp_buffer_get_width (buffer),
|
||
(gdouble) height / (gdouble) gimp_buffer_get_height (buffer)),
|
||
format,
|
||
gimp_temp_buf_get_data (preview),
|
||
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
|
||
|
||
return preview;
|
||
}
|
||
|
||
static gchar *
|
||
gimp_buffer_get_description (GimpViewable *viewable,
|
||
gchar **tooltip)
|
||
{
|
||
GimpBuffer *buffer = GIMP_BUFFER (viewable);
|
||
|
||
return g_strdup_printf ("%s (%d × %d)",
|
||
gimp_object_get_name (buffer),
|
||
gimp_buffer_get_width (buffer),
|
||
gimp_buffer_get_height (buffer));
|
||
}
|
||
|
||
GimpBuffer *
|
||
gimp_buffer_new (GeglBuffer *buffer,
|
||
const gchar *name,
|
||
gint offset_x,
|
||
gint offset_y,
|
||
gboolean copy_pixels)
|
||
{
|
||
GimpBuffer *gimp_buffer;
|
||
|
||
g_return_val_if_fail (GEGL_IS_BUFFER (buffer), NULL);
|
||
g_return_val_if_fail (name != NULL, NULL);
|
||
|
||
gimp_buffer = g_object_new (GIMP_TYPE_BUFFER,
|
||
"name", name,
|
||
NULL);
|
||
|
||
if (copy_pixels)
|
||
gimp_buffer->buffer = gegl_buffer_dup (buffer);
|
||
else
|
||
gimp_buffer->buffer = g_object_ref (buffer);
|
||
|
||
gimp_buffer->offset_x = offset_x;
|
||
gimp_buffer->offset_y = offset_y;
|
||
|
||
return gimp_buffer;
|
||
}
|
||
|
||
GimpBuffer *
|
||
gimp_buffer_new_from_pixbuf (GdkPixbuf *pixbuf,
|
||
const gchar *name,
|
||
gint offset_x,
|
||
gint offset_y)
|
||
{
|
||
GimpBuffer *gimp_buffer;
|
||
GeglBuffer *buffer;
|
||
|
||
g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), NULL);
|
||
g_return_val_if_fail (name != NULL, NULL);
|
||
|
||
buffer = gimp_pixbuf_create_buffer (pixbuf);
|
||
|
||
gimp_buffer = gimp_buffer_new (buffer, name,
|
||
offset_x, offset_y, FALSE);
|
||
|
||
g_object_unref (buffer);
|
||
|
||
return gimp_buffer;
|
||
}
|
||
|
||
gint
|
||
gimp_buffer_get_width (const GimpBuffer *buffer)
|
||
{
|
||
g_return_val_if_fail (GIMP_IS_BUFFER (buffer), 0);
|
||
|
||
return gegl_buffer_get_width (buffer->buffer);
|
||
}
|
||
|
||
gint
|
||
gimp_buffer_get_height (const GimpBuffer *buffer)
|
||
{
|
||
g_return_val_if_fail (GIMP_IS_BUFFER (buffer), 0);
|
||
|
||
return gegl_buffer_get_height (buffer->buffer);
|
||
}
|
||
|
||
const Babl *
|
||
gimp_buffer_get_format (const GimpBuffer *buffer)
|
||
{
|
||
g_return_val_if_fail (GIMP_IS_BUFFER (buffer), NULL);
|
||
|
||
return gegl_buffer_get_format (buffer->buffer);
|
||
}
|
||
|
||
GeglBuffer *
|
||
gimp_buffer_get_buffer (const GimpBuffer *buffer)
|
||
{
|
||
g_return_val_if_fail (GIMP_IS_BUFFER (buffer), NULL);
|
||
|
||
return buffer->buffer;
|
||
}
|