Package net.sf.jaxodraw.util
Class JaxoUtils
java.lang.Object
net.sf.jaxodraw.util.JaxoUtils
Some static utility methods.
- Since:
- 2.0
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Field Summary
Fields -
Method Summary
Modifier and TypeMethodDescriptionstatic void
drawImageArea
(Image m, int x, int y, int width, int height, Graphics g) Draw the part (x,y,width,height) of the image 'm' on 'g', at the same position (x,y).static void
drawImageArea
(Image m, int x, int y, int width, int height, Graphics g, int gx, int gy) Draw the part (x,y,width,height) of the image 'm' on 'g' at (gx,gy).static boolean
equal
(float a, float b) Compares the two floats.static boolean
equal
(float a, float b, float epsilon) Compares the two floats within a certain accuracy.static boolean
Check if two arrays are equal.static boolean
equivalent
(Object[] expected, Object[] actual) Check if two arrays are equivalent.static Image
getChooserImage
(Color iconColor) Returns an image with a box of 40x15 pixels size, of the given color.static Image
getChooserImage
(Color iconColor, Dimension size) Returns an image with a box of the given pixels size, of the given color.static ImageIcon
getChooserImageIcon
(Color iconColor) Returns an image icon with a box of 40x15 pixels size, of the given color.static ImageIcon
getChooserImageIcon
(Color iconColor, Dimension size) Returns an image icon with a box of the given pixels size, of the given color.static boolean
Check for button 1 mouse events.static boolean
Check for button 2 mouse events.static boolean
Check for button 3 mouse events.static boolean
Check for double click mouse events.static Image
Image from /resources/icons/ icon resource.static ImageIcon
newImageIcon
(String resourceName) ImageIcon from /resources/icons/ icon resource.static String
This is intended to be equivalent toArrays.toString(a)
but also compatible with JDK 1.4.static boolean
zero
(double a) Checks if the given double is zero.
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Field Details
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LINE_SEPARATOR
The system-dependent line separator.
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Method Details
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equal
public static boolean equal(float a, float b, float epsilon) Compares the two floats within a certain accuracy.- Parameters:
a
- First float to compare.b
- Second float to compare.epsilon
- the desired accuracy. Has to be non-negative.- Returns:
- True if the floats are equal to within the given accuracy.
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equal
public static boolean equal(float a, float b) Compares the two floats.- Parameters:
a
- First float to compare.b
- Second float to compare.- Returns:
- True if the floats are equal to within 0.1%.
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zero
public static boolean zero(double a) Checks if the given double is zero.- Parameters:
a
- The double to check.- Returns:
- True if the double is smaller in magnitude than 0.001d.
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drawImageArea
Draw the part (x,y,width,height) of the image 'm' on 'g', at the same position (x,y).- Parameters:
m
- The image.x
- The x coordinate.y
- The y coordinate.width
- The width.height
- The height.g
- The graphics context.
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drawImageArea
public static void drawImageArea(Image m, int x, int y, int width, int height, Graphics g, int gx, int gy) Draw the part (x,y,width,height) of the image 'm' on 'g' at (gx,gy).- Parameters:
m
- The image.x
- The x coordinate.y
- The y coordinate.width
- The width.height
- The height.g
- The graphics context.gx
- The x coordinate of the new origin.gy
- The y coordinate of the new origin.
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newImageIcon
ImageIcon from /resources/icons/ icon resource.- Parameters:
resourceName
- The name of the resource.- Returns:
- An ImageIcon.
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newImage
Image from /resources/icons/ icon resource.- Parameters:
resourceName
- The name of the resource file.- Returns:
- An Image.
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getChooserImage
Returns an image with a box of 40x15 pixels size, of the given color.- Parameters:
iconColor
- The color of theimage.- Returns:
- An Image.
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getChooserImage
Returns an image with a box of the given pixels size, of the given color.- Parameters:
iconColor
- The color of theimage.size
- The size ofthe image.- Returns:
- An Image.
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getChooserImageIcon
Returns an image icon with a box of 40x15 pixels size, of the given color. Used for the color button in the edit panels.- Parameters:
iconColor
- The color of theimage.- Returns:
- An ImageIcon.
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getChooserImageIcon
Returns an image icon with a box of the given pixels size, of the given color.- Parameters:
iconColor
- The color of theimage.size
- The size ofthe image.- Returns:
- An ImageIcon.
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isButton1
Check for button 1 mouse events.- Parameters:
e
- The MouseEvent.- Returns:
- True if e corresponds to a button 1 mouse event.
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isButton2
Check for button 2 mouse events.- Parameters:
e
- The MouseEvent.- Returns:
- True if e corresponds to a button 2 mouse event.
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isButton3
Check for button 3 mouse events.- Parameters:
e
- The MouseEvent.- Returns:
- True if e corresponds to a button 3 mouse event.
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isDoubleClick
Check for double click mouse events.- Parameters:
e
- The MouseEvent.- Returns:
- True if e corresponds to a double click mouse event.
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toString
This is intended to be equivalent toArrays.toString(a)
but also compatible with JDK 1.4. This concatenates the results of calling String.valueOf() on each element of the array, so this won't work well for multi-dimensional arrays.- Parameters:
array
- An array.- Returns:
- A string.
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equals
Check if two arrays are equal. Two arrays are equal if they contain the same elements in the same order, or if they are both null.- Parameters:
expected
- one array to be tested for equality.actual
- the other array to be tested for equality.- Returns:
- True if the two arrays are equal.
- See Also:
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equivalent
Check if two arrays are equivalent. Two arrays are equivalent if they contain the same number of elements, and every element of one array is also contained in the other array. In other words, two arrays are equivalent if they contain the same elements irrespective of order.This implementation uses
Arrays.sort(java.lang.Object[])
to bring the elements of each array into natural order, before they are checked for equality. Therefore, the elements of each array must implement the Comparable interface and they must be mutually comparable.- Parameters:
expected
- one array to be tested for equivalence.actual
- the other array to be tested for equivalence.- Returns:
- True if the two arrays contain the same elements.
- See Also:
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