Java_Gui_File_Sharer/RoundCornerButton.java at master · soun059/Java_Gui_File_Sharer · GitHub

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import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.geom.Area;
import java.awt.geom.Path2D;
import java.awt.geom.RoundRectangle2D;
import javax.swing.JButton;
import javax.swing.SwingConstants;

public class RoundCornerButton extends JButton {

    private static final int ARC_WIDTH = 15;
    private static final int ARC_HEIGHT = 15;
    private static final int FOCUS_STROKE = 4;
    private Color TRACTION_COLOR = new Color(126, 141, 180);
    private Font font = new Font("Helvetica", Font.ROMAN_BASELINE, 22);
    private Color TRANSPARENT_COLOR = new Color(0, 0, 0, 0);
    private int state = 0;

    public RoundCornerButton(String text, Dimension dimension)
    {
        super("<html> <center>" + text.replaceAll("\n", "<br/>")
                + "</center> </html>");
        this.setPreferredSize(dimension);
        setHorizontalTextPosition(SwingConstants.CENTER);
        setHorizontalAlignment(SwingConstants.CENTER);
        setVerticalAlignment(SwingConstants.CENTER);
        setMargin(new Insets(0, 0, 0, 0));
        setFont(font);
    }

    @Override
    public void updateUI()
    {
        super.updateUI();
        setContentAreaFilled(false);
        setFocusPainted(false);
        setBackground(Color.DARK_GRAY);
    }

    @Override
    protected void paintComponent(Graphics g)
    {
        Graphics2D g2 = (Graphics2D) g.create();
        int buttonWidth = getWidth() - 1;
        int buttonHeight = getHeight() - 1;
        Shape shape = new RoundRectangle2D.Float(0, 0, buttonWidth,
                buttonHeight, ARC_WIDTH, ARC_HEIGHT);
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                RenderingHints.VALUE_ANTIALIAS_ON);
            g2.setColor(new Color(214,246,204));
        g2.fill(shape);
        g2.dispose();
        super.paintComponent(g);
    }

    @Override
    protected void paintBorder(Graphics g)
    {
        Graphics2D g2 = (Graphics2D) g.create();

        int buttonWidth = getWidth() - 1;
        int buttonHeight = getHeight() - 1;
        int xPos = 3;
        Shape border = new RoundRectangle2D.Float(xPos, xPos, buttonWidth
                - xPos, buttonHeight - xPos, ARC_WIDTH, ARC_HEIGHT);
        Rectangle rectangle = border.getBounds();
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                RenderingHints.VALUE_ANTIALIAS_ON);
        g2.setStroke(new BasicStroke(3f));
        rectangle.grow(FOCUS_STROKE / 2, FOCUS_STROKE / 2);
        Path2D.Double lb = new Path2D.Double();
        lb.moveTo(rectangle.x + rectangle.width, rectangle.y + 5);
        lb.lineTo(rectangle.x + rectangle.width, rectangle.y + rectangle.height);
        lb.lineTo(rectangle.x + 5, rectangle.y + rectangle.height);
        lb.closePath();
        g2.setColor(new Color(110,172,183));
        g2.setClip(lb);
        g2.draw(border);
        g2.setColor(new Color(40,182,114));
        Area area = new Area(rectangle);
        area.subtract(new Area(lb));
        g2.setClip(area);
        g2.draw(border);
        // For shadow
        Shape border3 = new RoundRectangle2D.Float(xPos - 3, xPos - 3,
                getWidth(), getHeight(), 25, 25);
        Rectangle ractangle3 = border3.getBounds();
        ractangle3.grow(5, 5);
        Path2D.Double lb3 = new Path2D.Double();
        lb3.moveTo((ractangle3.x + ractangle3.width), (ractangle3.y));
        lb3.lineTo((ractangle3.x), (ractangle3.y));
        lb3.lineTo(ractangle3.x, (ractangle3.y + ractangle3.height));
        lb3.closePath();
        g2.setStroke(new BasicStroke(3f));
        g2.setColor(Color.BLACK);
        g2.setClip(lb3);
        g2.draw(border3);

        g2.dispose();
    }

}