Membuat Gradient form di Netbeans

Ok kawan kawan semua yang lag belajar java, saya mau sedikit share bagai mana cara membuat efek gradient di netbeans.  mungkin kawan kawan semua bosan dengan tampilan di nerbeans yang standar standart. hasilnya seperti yang tampak di ganbar. Ok langsung saja... yang pertama haurus kita buat adalah sebuah class.


class yang pertama kita beri nama panel.java. script nya ini..

import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.GeneralPath;
import java.awt.image.BufferedImage;
import javax.swing.JPanel;
/**
 *
 * @author shoechardex
 */   
public class panel_11090203 extends JPanel {
    private static final long serialVersionUID = -1;
    private BufferedImage gradientImage;
   private Color black = Color.black;
    private Color warna = new Color(0,80,60);
    /**
     * membuat panel white cyan
     */
    public panel_11090203() {
        super();
    }
    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        if (isOpaque()) {
            Graphics2D g2 = (Graphics2D) g.create();
            g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
            setUpGradient();
            g2.drawImage(gradientImage, 0, 0, getWidth(), getHeight(), null);
            int width = getWidth();
            int height = getHeight() * 5 / 100;
            Color light = new Color(1F, 1F, 1F, 0.5F);
            Color dark = new Color(1F, 1F, 1F, 0.0F);
            GradientPaint paint = new GradientPaint(0, 0, light, 0, height, dark);
            GeneralPath path = new GeneralPath();
            path.moveTo(0, 0);
            path.lineTo(0, height);
            path.curveTo(0, height, width / 2, height / 2, width, height);
            path.lineTo(width, 0);
            path.closePath();
            g2.setPaint(paint);
            g2.fill(path);
            paint = new GradientPaint(0, getHeight(), light, 0, getHeight() - height, dark);
            path = new GeneralPath();
            path.moveTo(0, getHeight());
            path.lineTo(0, getHeight() - height);
            path.curveTo(0, getHeight() - height, width / 2, getHeight() - height / 2, width, getHeight() - height);
            path.lineTo(width, getHeight());
            path.closePath();
           g2.setPaint(paint);
            g2.fill(path);
            g2.dispose();
        }
    }

    /**
     * membuat gambar background gradient
     */
    private void setUpGradient() {
        gradientImage = new BufferedImage(1, getHeight(), BufferedImage.TYPE_INT_ARGB);
        Graphics2D g2 = (Graphics2D) gradientImage.getGraphics();
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        GradientPaint paint = new GradientPaint(0, 0, black, 0, getHeight(), warna);
        g2.setPaint(paint);
        g2.fillRect(0, 0, 1, getHeight());
        g2.dispose();
    }
}

 setelah selesai lalu kita buat class yang kedua yaitu PanelImpl.java. scriptnya ..

import java.awt.Graphics;
import java.awt.Image;
import java.awt.Paint;
import javax.swing.Icon;
import javax.swing.JPanel;

/**
 *
 * @author shoechardex
 */
public class PanelImpl_11090203 extends JPanel implements PanelDao_11090203{

    private static final long serialVersionUID = 1L;
    private Icon backgroundImage;
    private int backgroundImageType;
    private Paint backgroundPaint;
    private boolean opaqueGradient;
    private boolean opaqueImage;
    private Image gambar;

    public PanelImpl_11090203() {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }
    public Icon getBackgroundImage() {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }

    public int getBackgroundImageType() {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }
    public Paint getBackgroundPaint() {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }

    public boolean isOpaqueGradient() {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }
    public boolean isOpaqueImage() {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }
    protected void paintComponent(Graphics g) {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }

    public void setBackgroundImage(Icon backgroundImage) throws IllegalArgumentException {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }
    public void setBackgroundImageType(int backgroundImageType) throws IllegalArgumentException {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }

    public void setBackgroundPaint(Paint backgroundPaint) {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }

    public void setOpaqueGradient(boolean opaqueGradient) {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }
    public void setOpaqueImage(boolean opaqueImage) {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }
}

sudah?... lalu file class yang ketiga namanya  PanelDao.java. Sriptnya....

/**
 *
 * @author shoechardex
 */
public interface PanelDao_11090203 {
    public static final int BACKGROUND_IMAGE_CENTER_BOTTOM = 0;
    public static final int BACKGROUND_IMAGE_CENTER_MIDDLE = 1;
    public static final int BACKGROUND_IMAGE_CENTER_TOP = 2;
    public static final int BACKGROUND_IMAGE_LEFT_BOTTOM = 3;
    public static final int BACKGROUND_IMAGE_LEFT_MIDDLE = 4;
    public static final int BACKGROUND_IMAGE_LEFT_TOP = 5;
    public static final int BACKGROUND_IMAGE_RIGHT_BOTTOM = 6;
    public static final int BACKGROUND_IMAGE_RIGHT_MIDDLE = 7;
    public static final int BACKGROUND_IMAGE_RIGHT_TOP = 8;
    public static final int BACKGROUND_IMAGE_STRECT = 9;
    public static final int BACKGROUND_IMAGE_TILED = 10;
}

setelah semua selesai Drag panel.java Kehalaman Form utama hasilnya akan seperti ini....

Selamat mancoba...

Posted in: belajar java