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/*
* gimp.h: Header for a TQt 3 plug-in for reading GIMP XCF image files
* Copyright (C) 2001 lignum Computing, Inc. <allen@lignumcomputing.com>
*
* This plug-in is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
/*
* These are the constants and functions I extracted from The GIMP source
* code. If the reader fails to work, this is probably the place to start
* looking for discontinuities.
*/
// From GIMP "tile.h" v1.2
const uint TILE_WIDTH = 64; //!< Width of a tile in the XCF file.
const uint TILE_HEIGHT = 64; //!< Height of a tile in the XCF file.
// From GIMP "paint_funcs.c" v1.2
const int RANDOM_TABLE_SIZE = 4096; //!< Size of dissolve random number table.
const int RANDOM_SEED = 314159265; //!< Seed for dissolve random number table.
const double EPSILON = 0.0001; //!< Roundup in alpha blending.
// From GIMP "paint_funcs.h" v1.2
const uchar OPAQUE_OPACITY = 255; //!< Opaque value for 8-bit alpha component.
// From GIMP "apptypes.h" v1.2
//! Basic GIMP image type. TQImage converter may produce a deeper image
//! than is specified here. For example, a grayscale image with an
//! alpha channel must (currently) use a 32-bit TQt image.
typedef enum
{
RGB,
GRAY,
INDEXED
} GimpImageBaseType;
//! Type of individual layers in an XCF file.
typedef enum
{
RGB_GIMAGE,
RGBA_GIMAGE,
GRAY_GIMAGE,
GRAYA_GIMAGE,
INDEXED_GIMAGE,
INDEXEDA_GIMAGE
} GimpImageType;
//! Effect to apply when layers are merged together.
typedef enum
{
NORMAL_MODE,
DISSOLVE_MODE,
BEHIND_MODE,
MULTIPLY_MODE,
SCREEN_MODE,
OVERLAY_MODE,
DIFFERENCE_MODE,
ADDITION_MODE,
SUBTRACT_MODE,
DARKEN_ONLY_MODE,
LIGHTEN_ONLY_MODE,
HUE_MODE,
SATURATION_MODE,
COLOR_MODE,
VALUE_MODE,
DIVIDE_MODE,
ERASE_MODE,
REPLACE_MODE,
ANTI_ERASE_MODE
} LayerModeEffects;
// From GIMP "xcf.c" v1.2
//! Properties which can be stored in an XCF file.
typedef enum
{
PROP_END = 0,
PROP_COLORMAP = 1,
PROP_ACTIVE_LAYER = 2,
PROP_ACTIVE_CHANNEL = 3,
PROP_SELECTION = 4,
PROP_FLOATING_SELECTION = 5,
PROP_OPACITY = 6,
PROP_MODE = 7,
PROP_VISIBLE = 8,
PROP_LINKED = 9,
PROP_PRESERVE_TRANSPARENCY = 10,
PROP_APPLY_MASK = 11,
PROP_EDIT_MASK = 12,
PROP_SHOW_MASK = 13,
PROP_SHOW_MASKED = 14,
PROP_OFFSETS = 15,
PROP_COLOR = 16,
PROP_COMPRESSION = 17,
PROP_GUIDES = 18,
PROP_RESOLUTION = 19,
PROP_TATTOO = 20,
PROP_PARASITES = 21,
PROP_UNIT = 22,
PROP_PATHS = 23,
PROP_USER_UNIT = 24
} PropType;
// From GIMP "xcf.c" v1.2
//! Compression type used in layer tiles.
typedef enum
{
COMPRESS_NONE = 0,
COMPRESS_RLE = 1,
COMPRESS_ZLIB = 2,
COMPRESS_FRACTAL = 3 /* Unused. */
} CompressionType;
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