Direct Known Subclasses:

ColoredPen
```
public class Pen
extends Object
```
A pen belongs to a window object. Because of this, you first have to create a window.
A pen has a exact defined position on the window, which is defined by an x- and y-coordinate. The origin of the coordinate system is the upper left corner of the window. The x-axis points to the right, the y-axis points down. The default position is the upper left corner. The unit is pixels.
A pen also has a direction. 0° means east. The pen can be turn clockwise.
The pen can be lift up or lowered down. Is the pen down and moving across the window the pen draws a line between each location. The line depends on its mode (see below).
If the pen is lift up, no line is drawn.
- DrawMode: The pen draws a black line.
- EraseMode: The pen draws a line in the background color. So the pen can "erase" its former drawing.
You also can use a colored pen with some more options, see class ColoredPen for more details.
Version:

01.06.2022

Author:

ms

Field Summary

Fields
Modifier and Type	Field	Description
`protected int`	`currentMode`
`protected static int`	`DRAWINGMODE`
`protected static int`	`ERASEMODE`
`protected javafx.scene.text.Font`	`font`
`(package private) javafx.scene.canvas.GraphicsContext`	`g`
`protected boolean`	`isUp`
`protected javafx.scene.paint.Paint`	`lineColor`
`protected double`	`lineWidth`
`protected Window`	`myWindow`
`protected double`	`rotation`
`protected double`	`x`
`protected double`	`y`

Constructor Summary

Constructors
Constructor Description

Pen()
Creates a new pen on the last created.

Pen(Window pWindow)
Creates a new pen on the specified window.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`delay(int pMilliseconds)`	Delays the execution by the specified amount of milliseconds.
`void`	`down()`	Lowers the pen down ("puts it on the paper").
`void`	`drawCircle(double pRadius)`	The pen draws a circle with the specified radius.
`void`	`drawRect(double pWidth, double pHeight)`	The pen draws a rectangle with the specified width and height.
`void`	`enableDrawMode()`	Puts the pen into drawing mode.
`void`	`enableEraseMode()`	Puts the pen into erase mode.
`String`	`getFont()`	Return the name of the font, the pen currently use.
`double`	`getFontSize()`	Return the size of the font the pen currently use.
`double`	`getRotation()`	Returns the current rotation of this pen.
`double`	`getX()`	Returns the x-coordinate of the pen's current location.
`double`	`getY()`	Returns the y-coordinate of the pen's current location.
`boolean`	`isEraseModeEnabled()`	Return true, if the pen is in erase mode, return false if the pen is in draw mode
`void`	`move(double pDistance)`	Moves this pen by the specified distance.
`protected void`	`setDefault()`	Sets the standard values for this pen.
`void`	`setFont(String pFontName)`	Set the font, the pen should use.
`void`	`setFontSize(double pSize)`	Set the font size to the specified value.
`void`	`setFontStyle(boolean pBold, boolean pItalic)`	Set the font style of the pen.
`void`	`setPosition(double pX, double pY)`	Moves this pen to the position (x1/y1).
`void`	`setRotation(double pAngle)`	Set the rotation of this pen.
`double`	`textHeight(String pText)`	Return the height of the giving text using the font settings of this pen
`double`	`textWidth(String pText)`	Return the width of the giving text using the font settings of this pen
`void`	`turn(double pAngle)`	Turn this pen by the specified amount (in degrees).
`void`	`turnTowards(double pX, double pY)`	Turn this pen to face towards the specified location.
`void`	`up()`	Lifts the pen up.
`void`	`write(char pCharacter)`	The pen writes the specified character.
`void`	`write(double pNumber)`	The pen writes the specified double value.
`void`	`write(float pNumber)`	The pen writes the specified float value.
`void`	`write(int pNumber)`	The pen writes the specified integer.
`void`	`write(long pNumber)`	The pen writes the specified long integer.
`void`	`write(String pText)`	The pen writes the specified text.

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - x
```
protected double x
```
  - y
```
protected double y
```
  - isUp
```
protected boolean isUp
```
  - rotation
```
protected double rotation
```
  - myWindow
```
protected Window myWindow
```
  - currentMode
```
protected int currentMode
```
  - lineColor
```
protected javafx.scene.paint.Paint lineColor
```
  - lineWidth
```
protected double lineWidth
```
  - font
```
protected javafx.scene.text.Font font
```
  - DRAWINGMODE
```
protected static final int DRAWINGMODE
```
    See Also:
    
    Constant Field Values
  - ERASEMODE
```
protected static final int ERASEMODE
```
    See Also:
    
    Constant Field Values
  - g
```
javafx.scene.canvas.GraphicsContext g
```
- Constructor Detail
  - Pen
```
public Pen()
```
    Creates a new pen on the last created. Because of this, you first have to create a window and the a pen.
  - Pen
```
public Pen(Window pWindow)
```
    Creates a new pen on the specified window.
    
    Parameters:
    
    pWindow - The window for this pen.
- Method Detail
  - delay
```
public void delay(int pMilliseconds)
```
    Delays the execution by the specified amount of milliseconds.
    
    Parameters:
    
    pMilliseconds - The duration of delay in milliseconds
  - textWidth
```
public double textWidth(String pText)
```
    Return the width of the giving text using the font settings of this pen
    
    Parameters:
    
    pText - The text of which to calculate the width
    
    Returns:
    
    the width of the text
  - textHeight
```
public double textHeight(String pText)
```
    Return the height of the giving text using the font settings of this pen
    
    Parameters:
    
    pText - The text of which to calculate the height
    
    Returns:
    
    the height of the text
  - setPosition
```
public void setPosition(double pX,
                        double pY)
```
    Moves this pen to the position (x1/y1). If the pen is down, a line is drawn.
    
    Parameters:
    
    pX - The x-coordinate
    
    pY - The y-coordinate
  - move
```
public void move(double pDistance)
```
    Moves this pen by the specified distance. If the pen is down, a line is drawn.
    
    Parameters:
    
    pDistance - The distance in pixel.
  - setRotation
```
public void setRotation(double pAngle)
```
    Set the rotation of this pen. Rotation is expressed as a degree value. Zero degrees is to the east (right-hand side of the window), and the angle increases clockwise.
    
    Parameters:
    
    pRotation - The angle in degrees
    
    See Also:
    
    turn(double)
  - turn
```
public void turn(double pAngle)
```
    Turn this pen by the specified amount (in degrees).
    
    Parameters:
    
    pAmount - The angle in degrees; positive values turn clockwise
  - turnTowards
```
public void turnTowards(double pX,
                        double pY)
```
    Turn this pen to face towards the specified location.
    
    Parameters:
    
    pX - The x-coordinate
    
    pY - The y-coordinate
  - drawRect
```
public void drawRect(double pWidth,
                     double pHeight)
```
    The pen draws a rectangle with the specified width and height. The position of the pen is the upper left corner. The rectangle is also drawn when then pen is up.
    
    Parameters:
    
    pWidth - The width of the rectangle
    
    pHeight - The height of the rectangle
  - drawCircle
```
public void drawCircle(double pRadius)
```
    The pen draws a circle with the specified radius. The position of the pen is the center of the circle. The circle is also drawn when then pen is up.
    
    Parameters:
    
    pRadius - The radius of the circle
  - write
```
public void write(String pText)
```
    The pen writes the specified text. The lower left corner of the text is the current pen position. After writing the pen position is the lower right corner of the text.
    
    Parameters:
    
    pText - The text
  - write
```
public void write(double pNumber)
```
    The pen writes the specified double value. The lower left corner of the double value is the current pen position. After writing the pen position is the lower right corner of the double value.
    
    Parameters:
    
    pText - The double value
  - write
```
public void write(int pNumber)
```
    The pen writes the specified integer. The lower left corner of the integer is the current pen position. After writing the pen position is the lower right corner of the integer.
    
    Parameters:
    
    pText - The integer
  - write
```
public void write(long pNumber)
```
    The pen writes the specified long integer. The lower left corner of the long integer is the current pen position. After writing the pen position is the lower right corner of the long integer.
    
    Parameters:
    
    pText - The long integer
  - write
```
public void write(float pNumber)
```
    The pen writes the specified float value. The lower left corner of the float value is the current pen position. After writing the pen position is the lower right corner of the float value.
    
    Parameters:
    
    pText - The float value
  - write
```
public void write(char pCharacter)
```
    The pen writes the specified character. The lower left corner of the character is the current pen position. After writing the pen position is the lower right corner of the character.
    
    Parameters:
    
    pText - The float value
  - up
```
public void up()
```
    Lifts the pen up. Moving the pen now has no visible effect, no line will be drawn.
    
    See Also:
    
    move(double), #setPostion(double, double)
  - down
```
public void down()
```
    Lowers the pen down ("puts it on the paper"). Now, the pen draws a line while moving.
    
    See Also:
    
    move(double), #setPostion(double, double)
  - enableDrawMode
```
public void enableDrawMode()
```
    Puts the pen into drawing mode. In this mode, the pen draws a line while moving (if pen is down).
    
    See Also:
    
    down(), up(), enableEraseMode()
  - enableEraseMode
```
public void enableEraseMode()
```
    Puts the pen into erase mode. In this mode, the pen erase everything while moving (if pen is down).
    
    See Also:
    
    down(), up(), #enableDrawing()
  - isEraseModeEnabled
```
public boolean isEraseModeEnabled()
```
    Return true, if the pen is in erase mode, return false if the pen is in draw mode
    
    Returns:
    
    true if erase mode is enabled, else false
  - getX
```
public double getX()
```
    Returns the x-coordinate of the pen's current location.
    
    Returns:
    
    Returns the x-coordinate of the pen's current location.
  - getY
```
public double getY()
```
    Returns the y-coordinate of the pen's current location.
    
    Returns:
    
    Returns the y-coordinate of the pen's current location.
  - getRotation
```
public double getRotation()
```
    Returns the current rotation of this pen. Rotation is expressed as a degree value, range (0..359). Zero degrees is towards the east, and the angle increases clockwise.
    
    Returns:
    
    The rotation in degrees.
  - setFont
```
public void setFont(String pFontName)
```
    Set the font, the pen should use. You can use every Font installed on your system. E.g. "Calibri", "Arial", "Times New Roman", "Deja Vu Sans". You can print all available fonts of your system, if you run jltk.util.Misc.printAvailableFontNames().
    
    Parameters:
    
    pFontName - Ein Parameter
    
    See Also:
    
    getFont(), Misc.printAvailableFontNames()
  - getFont
```
public String getFont()
```
    Return the name of the font, the pen currently use.
    
    Returns:
    
    The font name
    
    See Also:
    
    setFont(String), Misc.printAvailableFontNames()
  - setFontSize
```
public void setFontSize(double pSize)
```
    Set the font size to the specified value.
    
    Parameters:
    
    pSize - The font size
  - getFontSize
```
public double getFontSize()
```
    Return the size of the font the pen currently use.
    
    Returns:
    
    The font size
    
    See Also:
    
    setFontSize(double)
  - setFontStyle
```
public void setFontStyle(boolean pBold,
                         boolean pItalic)
```
    Set the font style of the pen.
    
    Parameters:
    
    pBold - true if bold, else false
    
    pItalic - true if italic, else false
    
    See Also:
    
    write(String)
  - setDefault
```
protected void setDefault()
```
    Sets the standard values for this pen. (for internal use)

Constructor	Description
`Pen()`	Creates a new pen on the last created.
`Pen(Window pWindow)`	Creates a new pen on the specified window.

Class Pen

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

x

y

isUp

rotation

myWindow

currentMode

lineColor

lineWidth

font

DRAWINGMODE

ERASEMODE

g

Constructor Detail

Pen

Pen

Method Detail

delay

textWidth

textHeight

setPosition

move

setRotation

turn

turnTowards

drawRect

drawCircle

write

write

write

write

write

write

up

down

enableDrawMode

enableEraseMode

isEraseModeEnabled

getX

getY

getRotation

setFont

getFont

setFontSize

getFontSize

setFontStyle

setDefault