GridBagBuilder.java

package open.dolphin.helper;

import java.awt.*;
import javax.swing.*;

/**
 * @author Kazushi Minagawa Digital Globe, Inc.
 *
 */
public final class GridBagBuilder {
    
    private static final int CMP_HGAP = 7;
    private static final int CMP_VGAP = 7;
    private static final int TITLE_SPACE_TOP = 0;
    private static final int TITLE_SPACE_LEFT = 0;
    private static final int TITLE_SPACE_BOTTOM = 10;
    private static final int TITLE_SPACE_RIGHT = 0;
    
    private JPanel container;
    private GridBagConstraints c;
    private JPanel product;
    private int cmpSpaceH = CMP_HGAP;
    private int cmpSpaceV = CMP_VGAP;
    private int titleSpaceTop = TITLE_SPACE_TOP;
    private int titleSpaceLeft = TITLE_SPACE_LEFT;
    private int titleSpaceBottom = TITLE_SPACE_BOTTOM;
    private int titleSpaceRight = TITLE_SPACE_RIGHT;
    
    public GridBagBuilder() {
        container = new JPanel(new GridBagLayout());
        c = new GridBagConstraints();
        product = container;
    }
    
    public GridBagBuilder(String title) {
        this();
        setTitle(title);
    }
    
    public JPanel getProduct() {
        return product;
    }
    
    /**
     * タイトルボーダを設定する。
     * @param title
     */
    public void setTitle(String title) {
        
        if (title != null) {
            product = new JPanel(new BorderLayout());
            product.setBorder(BorderFactory.createTitledBorder(title));
            container.setBorder(BorderFactory.createEmptyBorder(getTitleSpaceTop(),
                    getTitleSpaceLeft(),
                    getTitleSpaceBottom(),
                    getTitleSpaceRight()));
            
            product.add(container, BorderLayout.CENTER);
        }
    }
    
    /**
     * 座標(x, y) anchor の位置に長さ一のコンポーネントを追加する。
     * @param c
     * @param x
     * @param y
     * @param anchor
     */
    public void add(Component c, int x, int y, int anchor) {
        add(c, x, y, 1, 1, anchor);
    }
    
    /**
     * 座標(x, y) anchor の位置にスパン(width, height)のコンポーネントを追加する。
     * @param cmp
     * @param x
     * @param y
     * @param width
     * @param height
     * @param anchor
     */
    public void add(Component cmp, int x, int y, int width, int height, int anchor) {
        
        int top = (y == 0) ? 0 : getCmpSpaceV();
        int left = (x == 0) ? 0 : getCmpSpaceH();
        
        c.gridx = x;
        c.gridy = y;
        c.gridwidth = width;
        c.gridheight = height;
        c.fill = GridBagConstraints.NONE;	// 大きくしない !!!
        c.anchor = anchor;
        
        // X,Y 方向とも２番目以降の部品は水平方向に 7,
        // 垂直方向に 5 ピクセルの間隔をあける
        if (top != 0 || left != 0) {
            c.insets = new Insets(top, left, 0, 0);  // top left bottom right
        }
        
        ((GridBagLayout)container.getLayout()).setConstraints(cmp, c);
        container.add(cmp);
    }
    
    /**
     * 座標(x, y)の位置にスパン１で重み(wx, wy)のコンポーネントを追加する。
     * @param cmp
     * @param x
     * @param y
     * @param fill
     * @param wx
     * @param wy
     */
    public void add(Component cmp, int x, int y, int fill, double wx, double wy) {
        add(cmp, x, y, 1, 1, fill, wx, wy);
    }
    
    /**
     * 座標(x, y)の位置にスパン(width, height)で重み(wx, wy)のコンポーネントを追加する。
     * @param cmp
     * @param x
     * @param y
     * @param width
     * @param height
     * @param fill
     * @param wx
     * @param wy
     */
    public void add(Component cmp, int x, int y, int width, int height, int fill, double wx, double wy) {
        
        int top = (y == 0) ? 0 : getCmpSpaceV();
        int left = (x == 0) ? 0 : getCmpSpaceH();
        
        //GridBagConstraints c = new GridBagConstraints();
        c.gridx = x;
        c.gridy = y;
        c.gridwidth = width;
        c.gridheight = height;
        c.fill = fill;
        c.weightx = wx;
        c.weighty = wy;
        
        if (top != 0 || left != 0) {
            c.insets = new Insets(top, left, 0, 0);  // top left bottom right
        }
        
        ((GridBagLayout)container.getLayout()).setConstraints(cmp, c);
        container.add(cmp);
    }
    
    public void addGlue(int x, int y, int fill) {
        add(new JLabel(""), x, y, 1, 1, fill, 1.0, 1.0);
    }
    
    public void addHGlue(int x, int y) {
        add(new JLabel(""), x, y, 1, 1, GridBagConstraints.HORIZONTAL, 1.0, 1.0);
    }
    
    public void addVGlue(int x, int y) {
        add(new JLabel(""), x, y, 1, 1, GridBagConstraints.VERTICAL, 1.0, 1.0);
    }
    
    public void setCmpSpaceH(int cmpSpaceH) {
        this.cmpSpaceH = cmpSpaceH;
    }
    
    public int getCmpSpaceH() {
        return cmpSpaceH;
    }
    
    public void setCmpSpaceV(int cmpSpaceV) {
        this.cmpSpaceV = cmpSpaceV;
    }
    
    public int getCmpSpaceV() {
        return cmpSpaceV;
    }
    
    public void setTitleSpaceTop(int titleSpaceTop) {
        this.titleSpaceTop = titleSpaceTop;
    }
    
    public int getTitleSpaceTop() {
        return titleSpaceTop;
    }
    
    public void setTitleSpaceLeft(int titleSpaceLeft) {
        this.titleSpaceLeft = titleSpaceLeft;
    }
    
    public int getTitleSpaceLeft() {
        return titleSpaceLeft;
    }
    
    public void setTitleSpaceBottom(int titleSpaceBottom) {
        this.titleSpaceBottom = titleSpaceBottom;
    }
    
    public int getTitleSpaceBottom() {
        return titleSpaceBottom;
    }
    
    public void setTitleSpaceRight(int titleSpaceRight) {
        this.titleSpaceRight = titleSpaceRight;
    }
    
    public int getTitleSpaceRight() {
        return titleSpaceRight;
    }
}