de.kosi.gui.util
Class CUtilities

java.lang.Object
  |
  +--de.kosi.gui.util.CUtilities

public class CUtilities

extends java.lang.Object

This class provides some static utilitiy functions.

Constructor Summary

CUtilities()

Method Summary

static void	checkInRange(int val, int min, int max) Throws an IllegalArgumentException if val is greater than min or less than max.
static void	checkNotNull(java.lang.Object object) Throws an IllegalArgumentException if the argument is null.
static double	clamp(double value, double min, double max)
static float	clamp(float value, float min, float max)
static int	clamp(int value, int min, int max)
static int	countChar(java.lang.String string, char ch) Counts the number of occurences of a character in a string.
static java.awt.Image	getImage(java.lang.String name)
static void	handleException(java.lang.Exception exception) Tells the user that an exception was thrown.
static double	interpolate(double x, double y, double alpha) Linear interpolation of double values.
static float	interpolate(float x, float y, float alpha) Linear interpolation of float values.
static int	random(int min, int max)
static java.lang.String[]	splitString(java.lang.String string, char separator)

Methods inherited from class java.lang.Object

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

Constructor Detail

CUtilities

public CUtilities()

Method Detail

getImage

public static java.awt.Image getImage(java.lang.String name)

splitString

public static java.lang.String[] splitString(java.lang.String string,
                                             char separator)

countChar

public static int countChar(java.lang.String string,
                            char ch)

Counts the number of occurences of a character in a string.

Parameters:

string - the string to examine.

ch - the character which number occurences you want to know.

handleException

public static void handleException(java.lang.Exception exception)

Tells the user that an exception was thrown.

Parameters:

exception - the exception that was thrown.

checkInRange

public static void checkInRange(int val,
                                int min,
                                int max)

Throws an IllegalArgumentException if val is greater than min or less than max.

Parameters:

val - the value to check if it is in the allowed range.

min - the minimum value allowed.

max - the upper bound of the range / the maximum value allowed.

checkNotNull

public static void checkNotNull(java.lang.Object object)

Throws an IllegalArgumentException if the argument is null.

Parameters:

object - the pointer to check if it is not null.

interpolate

public static double interpolate(double x,
                                 double y,
                                 double alpha)

Linear interpolation of double values.

Parameters:

x -

y -

alpha -

Returns:

interpolate

public static float interpolate(float x,
                                float y,
                                float alpha)

Linear interpolation of float values.

Returns:

(1.f - alpha) * i + alpha * j

random

public static int random(int min,
                         int max)

clamp

public static double clamp(double value,
                           double min,
                           double max)

clamp

public static float clamp(float value,
                          float min,
                          float max)

clamp

public static int clamp(int value,
                        int min,
                        int max)