NinePatchBorder.java

package ru.denull.wire;

import java.awt.*;

import javax.swing.border.AbstractBorder;

public class NinePatchBorder extends AbstractBorder {
  private static final long serialVersionUID = 4194792249061847077L;
  private Image bg;
  private Insets fixed;
  private Insets padding;
  private boolean ninePatch;

  public NinePatchBorder(Image bg) {
    super();
    this.bg = bg;
    
    ninePatch = true;
    // TODO: read fixed & padding from image
  }
  
  public NinePatchBorder(Image bg, Insets fixed) {
    this(bg, fixed, fixed);
  }
  
  public NinePatchBorder(Image bg, Insets fixed, int padding) {
    this(bg, fixed, new Insets(padding, padding, padding, padding));
  }
  
  public NinePatchBorder(Image bg, Insets fixed, int vpadding, int hpadding) {
    this(bg, fixed, new Insets(vpadding, hpadding, vpadding, hpadding));
  }
  
  public NinePatchBorder(Image bg, Insets fixed, int ptop, int pleft, int pbottom, int pright) {
    this(bg, fixed, new Insets(ptop, pleft, pbottom, pright));
  }
  
  public NinePatchBorder(Image bg, int top, int left, int bottom, int right) {
    this(bg, new Insets(top, left, bottom, right));
  }
  
  public NinePatchBorder(Image bg, int top, int left, int bottom, int right, int padding) {
    this(bg, new Insets(top, left, bottom, right), new Insets(padding, padding, padding, padding));
  }
  
  public NinePatchBorder(Image bg, int top, int left, int bottom, int right, int vpadding, int hpadding) {
    this(bg, new Insets(top, left, bottom, right), new Insets(vpadding, hpadding, vpadding, hpadding));
  }
  
  public NinePatchBorder(Image bg, int top, int left, int bottom, int right, int ptop, int pleft, int pbottom, int pright) {
    this(bg, new Insets(top, left, bottom, right), new Insets(ptop, pleft, pbottom, pright));
  }
  
  public NinePatchBorder(Image bg, Insets fixed, Insets padding) {
    super();
    this.bg = bg;
    this.fixed = fixed;
    this.padding = padding;
    
    ninePatch = false;
  }

  public Insets getBorderInsets(Component c) {
    return padding;
  }
  
  public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
    if (bg != null) {
      int ofs = ninePatch ? 1 : 0;
      int w = bg.getWidth(null);
      int h = bg.getHeight(null);
      g.drawImage(bg, x, y, x + fixed.left, y + fixed.top, ofs, ofs, ofs + fixed.left, ofs + fixed.top, null); // Top left
      g.drawImage(bg, x + width - fixed.right, y, x + width, y + fixed.top, w - ofs - fixed.right, ofs, w - ofs, ofs + fixed.top, null); // Top right
      g.drawImage(bg, x, y + height - fixed.bottom, x + fixed.left, y + height, ofs, h - ofs - fixed.bottom, ofs + fixed.left, h - ofs, null); // Bottom left
      g.drawImage(bg, x + width - fixed.right, y + height - fixed.bottom, x + width, y + height, w - ofs - fixed.right, h - ofs - fixed.bottom, w - ofs, h - ofs, null); // Bottom right
      
      g.drawImage(bg, x + fixed.left, y, x + width - fixed.right, y + fixed.top, ofs + fixed.left, ofs, w - ofs - fixed.right, ofs + fixed.top, null); // Top
      g.drawImage(bg, x + fixed.left, y + height - fixed.bottom, x + width - fixed.right, y + height, ofs + fixed.left, h - ofs - fixed.bottom, w - ofs - fixed.right, h - ofs, null); // Bottom
      
      g.drawImage(bg, x, y + fixed.top, x + fixed.left, y + height - fixed.bottom, ofs, ofs + fixed.top, ofs + fixed.left, h - ofs - fixed.bottom, null); // Left
      g.drawImage(bg, x + width - fixed.right, y + fixed.top, x + width, y + height - fixed.bottom, w - ofs - fixed.right, ofs + fixed.top, w - ofs, h - ofs - fixed.bottom, null); // Right
      
      g.drawImage(bg, x + fixed.left, y + fixed.top, x + width - fixed.right, y + height - fixed.bottom, ofs + fixed.left, ofs + fixed.top, w - ofs - fixed.right, h - ofs - fixed.bottom, null); // Center
    }
  }

   
}