Add RenderingHints to a Graphics
This Java tutorial teaches you about adding the rendering
hints to a graphics on the frame. The rendering hints uses the Graphics2D and
creates the following image.
Description of program:
This program uses the Graphics2D class for rendering
hints and draw or construct the given following image.
Description of code:
Graphics2D():
This is the constructor of Graphics2D class that extends the Graphics class
to provide
KEY_ANTIALIASING:
This is an antialiasing hint key.
VALUE_ANTIALIAS_ON:
This is a antialiasing hints values and rendered with it.
setRenderingHint():
This method sets the values in Graphics2D object for rendering algorithm.
GradiantPaint(float x1, float y1, Color col1,
float x2, float y2, Color col2):
This is the constructor of GradiantPaint class that provides a way for
filling the shapes with gradient color pattern. It creates the simple acyclic GradientPaint
object. It takes the following arguments:
x1: This
is the x coordinate of first specified point.
y1: This is the y coordinate
of first specified point.
col1: This is the color of
first specified point.
x2: This is the x coordinate
of second specified point.
y2: This is the y coordinate
of second specified point.
col2: This is the color of
second specified point.
Ellipse2D():
This is the constructor of an abstract class Ellipse2D that defines bounding
rectangle and constructs an ellipse.
transform():
This is the constructor of Transform Class. This is an abstract class that
transform a source tree into a tree result.
Here is the code of program:
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
public class RanderingHintsGraphics extends Frame{
public static void main(String[] args) {
new RanderingHintsGraphics();
}
public RanderingHintsGraphics(){
setTitle("Add RenderingHints to a Graphics");
setSize(300,200);
setVisible(true);
addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent we){
System.exit(0);
}
});
}
public void paint(Graphics g){
Graphics2D d = (Graphics2D)g;
d.setRenderingHint(
RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
GradientPaint gpaint = new GradientPaint(
50, 80, Color.gray,50, 110, Color.lightGray);
Ellipse2D el = new Ellipse2D.Double(5, 30, 280, 160);
d.setPaint(gpaint);
d.fill(el);
double rotation = Math.PI/8;
d.transform(AffineTransform.getRotateInstance(rotation));
Font font = new Font("Serif", Font.TRUETYPE_FONT, 50);
d.setFont(font);
d.setPaint(Color.white);
String str = "RoseIndia";
d.drawString(str,80,60);
}
}
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Download this example.
Output of program:
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