gimp.h File Reference

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Typedefs
typedef unsigned char	uchar

Enumerations
enum	CompressionType { COMPRESS_NONE = 0, COMPRESS_RLE = 1, COMPRESS_ZLIB = 2, COMPRESS_FRACTAL = 3 }
enum	GimpImageBaseType { RGB, GRAY, INDEXED }
enum	GimpImageType {   RGB_GIMAGE, RGBA_GIMAGE, GRAY_GIMAGE, GRAYA_GIMAGE,   INDEXED_GIMAGE, INDEXEDA_GIMAGE }
enum	LayerModeEffects {   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,   DODGE_MODE, BURN_MODE, HARDLIGHT_MODE, SOFTLIGHT_MODE,   GRAIN_EXTRACT_MODE, GRAIN_MERGE_MODE }
enum	PropType {   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 }

Functions
static void	HLSTORGB (uchar &hue, uchar &lightness, uchar &saturation)
static int	HLSVALUE (double n1, double n2, double hue)
static void	HSVTORGB (uchar &hue, uchar &saturation, uchar &value)
int	INT_BLEND (int a, int b, int alpha)
int	INT_MULT (int a, int b)
static void	RGBTOHLS (uchar &red, uchar &green, uchar &blue)
static void	RGBTOHSV (uchar &red, uchar &green, uchar &blue)

Variables
const double	EPSILON = 0.0001
const uchar	OPAQUE_OPACITY = 255
const int	RANDOM_SEED = 314159265
const int	RANDOM_TABLE_SIZE = 4096
const uint	TILE_HEIGHT = 64
const uint	TILE_WIDTH = 64

Typedef Documentation

uchar

typedef unsigned char uchar

Definition at line 24 of file gimp.h.

Enumeration Type Documentation

CompressionType

enum CompressionType

Compression type used in layer tiles.

Enumerator
COMPRESS_NONE
COMPRESS_RLE
COMPRESS_ZLIB
COMPRESS_FRACTAL

Definition at line 139 of file gimp.h.

GimpImageBaseType

enum GimpImageBaseType

Basic GIMP image type.

QImage 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 Qt image.

Enumerator
RGB
GRAY
INDEXED

Definition at line 53 of file gimp.h.

GimpImageType

enum GimpImageType

Type of individual layers in an XCF file.

Enumerator
RGB_GIMAGE
RGBA_GIMAGE
GRAY_GIMAGE
GRAYA_GIMAGE
INDEXED_GIMAGE
INDEXEDA_GIMAGE

Definition at line 62 of file gimp.h.

LayerModeEffects

enum LayerModeEffects

Effect to apply when layers are merged together.

Enumerator
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
DODGE_MODE
BURN_MODE
HARDLIGHT_MODE
SOFTLIGHT_MODE
GRAIN_EXTRACT_MODE
GRAIN_MERGE_MODE

Definition at line 76 of file gimp.h.

PropType

enum PropType

Properties which can be stored in an XCF file.

Enumerator
PROP_END
PROP_COLORMAP
PROP_ACTIVE_LAYER
PROP_ACTIVE_CHANNEL
PROP_SELECTION
PROP_FLOATING_SELECTION
PROP_OPACITY
PROP_MODE
PROP_VISIBLE
PROP_LINKED
PROP_PRESERVE_TRANSPARENCY
PROP_APPLY_MASK
PROP_EDIT_MASK
PROP_SHOW_MASK
PROP_SHOW_MASKED
PROP_OFFSETS
PROP_COLOR
PROP_COMPRESSION
PROP_GUIDES
PROP_RESOLUTION
PROP_TATTOO
PROP_PARASITES
PROP_UNIT
PROP_PATHS
PROP_USER_UNIT

Definition at line 106 of file gimp.h.

Function Documentation

HLSTORGB()

static void HLSTORGB ( uchar &  hue, uchar &  lightness, uchar &  saturation  )

static

Convert a color in HLS space to RGB space.

Parameters

hue	the hue component (modified in place).
lightness	the lightness component (modified in place).
saturation	the saturation component (modified in place).

Definition at line 390 of file gimp.h.

HLSVALUE()

static int HLSVALUE ( double  n1, double  n2, double  hue  )

static

Implement the HLS "double hex-cone".

Parameters

n1	lightness fraction (?)
n2	saturation fraction (?)
hue	hue "angle".

Returns

HLS value.

Definition at line 363 of file gimp.h.

HSVTORGB()

static void HSVTORGB ( uchar &  hue, uchar &  saturation, uchar &  value  )

static

Convert a color in HSV space to RGB space.

Parameters

hue	the hue component (modified in place).
saturation	the saturation component (modified in place).
value	the value component (modified in place).

Definition at line 243 of file gimp.h.

INT_BLEND()

int INT_BLEND ( int  a, int  b, int  alpha  )

inline

Blend the two color components in the proportion alpha:

result = alpha a + ( 1 - alpha ) b

Parameters

a	first component.
b	second component.
alpha	blend proportion.

Returns

blended color components.

Definition at line 173 of file gimp.h.

INT_MULT()

int INT_MULT ( int  a, int  b  )

inline

Multiply two color components. Really expects the arguments to be 8-bit quantities.

Parameters

a	first minuend.
b	second minuend.

Returns

product of arguments.

Definition at line 156 of file gimp.h.

RGBTOHLS()

static void RGBTOHLS ( uchar &  red, uchar &  green, uchar &  blue  )

static

Convert a color in RGB space to HLS space (Hue, Lightness, Saturation).

Parameters

red	the red component (modified in place).
green	the green component (modified in place).
blue	the blue component (modified in place).

Definition at line 303 of file gimp.h.

RGBTOHSV()

static void RGBTOHSV ( uchar &  red, uchar &  green, uchar &  blue  )

static

Convert a color in RGB space to HSV space (Hue, Saturation, Value).

Parameters

red	the red component (modified in place).
green	the green component (modified in place).
blue	the blue component (modified in place).

Definition at line 186 of file gimp.h.

Variable Documentation

EPSILON

const double EPSILON = 0.0001

Roundup in alpha blending.

Definition at line 41 of file gimp.h.

OPAQUE_OPACITY

const uchar OPAQUE_OPACITY = 255

Opaque value for 8-bit alpha component.

Definition at line 45 of file gimp.h.

RANDOM_SEED

const int RANDOM_SEED = 314159265

Seed for dissolve random number table.

Definition at line 40 of file gimp.h.

RANDOM_TABLE_SIZE

const int RANDOM_TABLE_SIZE = 4096

Size of dissolve random number table.

Definition at line 39 of file gimp.h.

TILE_HEIGHT

const uint TILE_HEIGHT = 64

Height of a tile in the XCF file.

Definition at line 35 of file gimp.h.

TILE_WIDTH

const uint TILE_WIDTH = 64

Width of a tile in the XCF file.

Definition at line 34 of file gimp.h.