com.vistech.shapes
Class Arrow
java.lang.Object
|
+--com.vistech.shapes.Shapes
|
+--com.vistech.shapes.Arrow
- All Implemented Interfaces:
- java.lang.Cloneable, Drawable, java.io.Serializable
- public class Arrow
- extends Shapes
- implements Drawable
Represents an interactively drawable arrow.
- Version:
- 1.0 24 July 1996
- Author:
- Larry Rodrigues
- See Also:
- Serialized Form
Constructor Summary |
Arrow()
|
Method Summary |
boolean |
contains(java.awt.Graphics2D g,
int x,
int y)
Vhecks whether the specified point contained in the shape. |
void |
draw(java.awt.Graphics2D g)
Draws the shape permanently, which happens when the mouse is released. |
void |
drawArrow(java.awt.Point st,
java.awt.Point end,
java.awt.Graphics2D g)
Draws two inclined lines at the current position
in order to create an arrow head. |
void |
drawInteractive(java.awt.Graphics2D g)
Draws an Arrow interactively on a Graphics context g. |
void |
drawPermanent(java.awt.Graphics2D g)
Draws an Arrow on a Graphics context g. |
void |
drawSmallRects(java.awt.Graphics2D g)
Draws small rectangle at the shape corners to indicate that
the shape is active. |
void |
erase(java.awt.Graphics2D g)
Erase the shape. |
void |
init(int x,
int y)
Initializes the Arrow parameters. |
void |
move(java.awt.Graphics2D g,
int diffx,
int diffy)
Draws and returns itself. |
void |
setCurPoint(int x,
int y)
Sets the current position. |
void |
setDoubleHeaded(boolean onOrOff)
|
Methods inherited from class com.vistech.shapes.Shapes |
contains, copy, getCurrentPosition, getDrawingColor, getFillColor, getFillOn, getFont, getGeneralPath, getShapeCount, getSmallRectsOn, getStartPosition, getStroke, setCurrentPosition, setDrawingColor, setFillColor, setFillOn, setFont, setGeneralPath, setShapeCount, setSmallRectsOn, setStartPosition, setStroke |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
doubleHeaded
protected boolean doubleHeaded
Arrow
public Arrow()
init
public void init(int x,
int y)
- Initializes the Arrow parameters.
The arguments provide the starting position of the Arrow.
- Specified by:
init
in interface Drawable
- Overrides:
init
in class Shapes
- Parameters:
x
- the x coordinate of the starting position.y
- the y coordinate of the starting poistion.
setCurPoint
public void setCurPoint(int x,
int y)
- Sets the current position.
- Parameters:
x
- the x coordinate of the current position.y
- the y coordinate of the current poistion.
setDoubleHeaded
public void setDoubleHeaded(boolean onOrOff)
drawInteractive
public void drawInteractive(java.awt.Graphics2D g)
- Draws an Arrow interactively on a Graphics context g.
This API does not check whether the Arrow overflows
the borders of the component.
This method uses the XOR paint mode. It erases the
previously drawn shape and draws a new shape in its
place.
- Specified by:
drawInteractive
in interface Drawable
- Parameters:
g
- the graphics object on which the shape is to be drawn.
drawPermanent
public void drawPermanent(java.awt.Graphics2D g)
- Draws an Arrow on a Graphics context g.
This API does not check whether the Box overflows
the borders of the component.
- Parameters:
g
- the graphics object on which the shape is to be drawn.
draw
public void draw(java.awt.Graphics2D g)
- Description copied from interface:
Drawable
- Draws the shape permanently, which happens when the mouse is released.
- Specified by:
draw
in interface Drawable
- Following copied from interface:
com.vistech.shapes.Drawable
- Parameters:
g
- the graphcs context on which the shape is drawn.
erase
public void erase(java.awt.Graphics2D g)
- Description copied from interface:
Drawable
- Erase the shape.
- Specified by:
erase
in interface Drawable
- Following copied from interface:
com.vistech.shapes.Drawable
- Parameters:
g
- the graphcs context on which the shape was drawn.
contains
public boolean contains(java.awt.Graphics2D g,
int x,
int y)
- Description copied from class:
Shapes
- Vhecks whether the specified point contained in the shape.
- Overrides:
contains
in class Shapes
- Following copied from class:
com.vistech.shapes.Shapes
- Parameters:
g
- the graphics context on which the shape was drawn.x
- the coordinate of the point that is being checked for containment.y
- the coordinate of the point that is being checked for containment.
drawSmallRects
public void drawSmallRects(java.awt.Graphics2D g)
- Description copied from class:
Shapes
- Draws small rectangle at the shape corners to indicate that
the shape is active. For example, a shape that is being moved is
surrounded by small rectagles at the shape corners.
small rectab
- Overrides:
drawSmallRects
in class Shapes
- Following copied from class:
com.vistech.shapes.Shapes
- Parameters:
g
- the graphics context on which the shape was drawn.
move
public void move(java.awt.Graphics2D g,
int diffx,
int diffy)
- Draws and returns itself.
shapeCount is set by the caller.
- Specified by:
move
in interface Drawable
- Parameters:
g
- the graphics object on which the shape is to be drawn.shCnt
- the shape count.- Returns:
- Shape itself.
drawArrow
public void drawArrow(java.awt.Point st,
java.awt.Point end,
java.awt.Graphics2D g)
- Draws two inclined lines at the current position
in order to create an arrow head.
- Parameters:
st
- the staring position of the arrow - arrow bottom.end
- the end position of the arrow - arrow head.g
- the graphics context.