cz.cuni.jagrlib
Class BinaryOperation

java.lang.Object
  cz.cuni.jagrlib.BinaryOperation

public class BinaryOperation
extends java.lang.Object

Binary operations used in set*() drawing methods. All 16 binary mappings are coded into one integer ( [oldBit,newBit] -> resultBit).

Since:

0.02

See Also:

BinaryOperation.java, interface BitMask, interface RasterGraphics

Field Summary

static int	BIN_OP_0010 Old & Not(New) /= Old subtract New/ .. code = 0010.
static int	BIN_OP_0100 Not(Old) & New /= New subtract Old/ .. code = 0100.
static int	BIN_OP_1011 Old | Not(New) .. code = 1011.
static int	BIN_OP_1101 Not(Old) | New .. code = 1101.
static int	BIN_OP_AND And .. code = 0001.
static int	BIN_OP_DUMMY Dummy .. code = 0011.
static int	BIN_OP_EQUAL Equal .. code = 1001.
static int	BIN_OP_NAND Not(And) .. code = 1110.
static int	BIN_OP_NEGATE Negate .. code = 1100.
static int	BIN_OP_NOR Not(Or) .. code = 1000.
static int	BIN_OP_NSET Not(Set) .. code = 1010.
static int	BIN_OP_ONE One .. code = 1111.
static int	BIN_OP_OR Or .. code = 0111.
static int	BIN_OP_SET Set .. code = 0101.
static int	BIN_OP_SUB_INV
static int	BIN_OP_SUBTRACT
static int	BIN_OP_XOR Xor .. code = 0110.
static int	BIN_OP_ZERO Zero .. code = 0000.

Constructor Summary

BinaryOperation()

Method Summary

static boolean	boolOp(int op, boolean canvas, boolean brush) Returns the binary-op result.
static int	stationaryOp(int op) Returns the stationary closure of a binary operation (0 in brush plane must not change anything).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BIN_OP_ZERO

public static final int BIN_OP_ZERO

Zero .. code = 0000.

See Also:

Constant Field Values

BIN_OP_NOR

public static final int BIN_OP_NOR

Not(Or) .. code = 1000.

See Also:

Constant Field Values

BIN_OP_0100

public static final int BIN_OP_0100

Not(Old) & New /= New subtract Old/ .. code = 0100.

See Also:

Constant Field Values

BIN_OP_SUB_INV

public static final int BIN_OP_SUB_INV

See Also:

Constant Field Values

BIN_OP_NEGATE

public static final int BIN_OP_NEGATE

Negate .. code = 1100.

See Also:

Constant Field Values

BIN_OP_0010

public static final int BIN_OP_0010

Old & Not(New) /= Old subtract New/ .. code = 0010.

See Also:

Constant Field Values

BIN_OP_SUBTRACT

public static final int BIN_OP_SUBTRACT

See Also:

Constant Field Values

BIN_OP_NSET

public static final int BIN_OP_NSET

Not(Set) .. code = 1010.

See Also:

Constant Field Values

BIN_OP_XOR

public static final int BIN_OP_XOR

Xor .. code = 0110.

See Also:

Constant Field Values

BIN_OP_NAND

public static final int BIN_OP_NAND

Not(And) .. code = 1110.

See Also:

Constant Field Values

BIN_OP_AND

public static final int BIN_OP_AND

And .. code = 0001.

See Also:

Constant Field Values

BIN_OP_EQUAL

public static final int BIN_OP_EQUAL

Equal .. code = 1001.

See Also:

Constant Field Values

BIN_OP_SET

public static final int BIN_OP_SET

Set .. code = 0101.

See Also:

Constant Field Values

BIN_OP_1101

public static final int BIN_OP_1101

Not(Old) | New .. code = 1101.

See Also:

Constant Field Values

BIN_OP_DUMMY

public static final int BIN_OP_DUMMY

Dummy .. code = 0011.

See Also:

Constant Field Values

BIN_OP_1011

public static final int BIN_OP_1011

Old | Not(New) .. code = 1011.

See Also:

Constant Field Values

BIN_OP_OR

public static final int BIN_OP_OR

Or .. code = 0111.

See Also:

Constant Field Values

BIN_OP_ONE

public static final int BIN_OP_ONE

One .. code = 1111.

See Also:

Constant Field Values

Constructor Detail

BinaryOperation

public BinaryOperation()

Method Detail

boolOp

public static final boolean boolOp(int op,
                                   boolean canvas,
                                   boolean brush)

Returns the binary-op result.

Parameters:

op - Binary operation code.

canvas - The original (canvas) boolean value.

brush - The drawn (brush) boolean value.

Returns:

The result boolean value.

stationaryOp

public static final int stationaryOp(int op)

Returns the stationary closure of a binary operation (0 in brush plane must not change anything).

Parameters:

op - The binary operation.

Returns:

The stationary closure of the operation.