Application: gvSIG desktop » Library: org.gvsig.tools

package org.gvsig.configurableactions;

import java.awt.event.ActionEvent;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.net.URL;

import java.util.Collection;

import javax.swing.AbstractAction;

import javax.swing.AbstractButton;

import javax.swing.Action;

import javax.swing.ImageIcon;

import javax.swing.JComponent;

import javax.swing.JLabel;

import javax.swing.JMenuItem;

import javax.swing.JPopupMenu;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.i18n.I18nManager;

import org.gvsig.tools.swing.api.SupportIsEnable;

import org.gvsig.tools.swing.api.SupportIsVisible;

public class ActionsController {

    private final JComponent component;

    private final Object source;

    private Collection<Action> actions;

    private class ActionListenerAdapter extends AbstractAction {

        private final Action action;

        public ActionListenerAdapter(Action action) {

            this.action = action;

        }

        @Override

        public void actionPerformed(ActionEvent e) {

            e.setSource(source);

            action.actionPerformed(e);

        }

        @Override

        public Object getValue(String key) {

            return action.getValue(key);

        }

        @Override

        public void putValue(String key, Object newValue) {

            action.putValue(key, newValue);

        }

        @Override

        public boolean isEnabled() {

            return action.isEnabled(); 

        }

        @Override

        public void setEnabled(boolean newValue) {

            action.setEnabled(newValue); 

        }

    }

    @SuppressWarnings("OverridableMethodCallInConstructor")

    public ActionsController(Collection<Action> actions, Object source, JComponent component)  {

        this.component = component;

        this.source = source;

        this.update(actions);

        this.initComponent();

    }

    private void initComponent() {

        I18nManager i18n = ToolsLocator.getI18nManager();

        this.component.setToolTipText(i18n.getTranslation("_Click_to_see_more_action_in_this_panel"));

        URL url = this.getClass().getResource("/org/gvsig/configurableactions/images/configurableactions.png");

        if( component instanceof AbstractButton ) {

            AbstractButton comp = (AbstractButton) this.component;

            if( comp.getText().equals("...") ) {

                comp.setText("");

            }

            comp.setIcon(new ImageIcon(url));

        } else if( component instanceof JLabel ) {

            JLabel comp = (JLabel) this.component;

            if( comp.getText().equals("...") ) {

                comp.setText("");

            }

            comp.setIcon(new ImageIcon(url));

        }

        this.component.setBorder(null);

        this.component.addMouseListener(new MouseAdapter() {

            @Override

            public void mouseClicked(MouseEvent e) {

                if( e.getClickCount()==1 && e.getButton()==MouseEvent.BUTTON1 ) {

                    doShowMenu();

                }

            }

        });

//        this.addActionListener(new ActionListener() {

//            @Override

//            public void actionPerformed(ActionEvent e) {

//                doShowMenu();

//            }

//        });

    }

    public void update(Collection<Action> actions) {

        this.actions = actions;

        if( actions==null || actions.isEmpty() ) {

            this.component.setVisible(false);

        } else {

            this.component.setVisible(true);

        }

    }

    private void doShowMenu() {

        JPopupMenu menu = new JPopupMenu();

        SupportIsVisible visible = null;

        if( this.source instanceof SupportIsVisible ) {

            visible = (SupportIsVisible) this.source;

        }

        SupportIsEnable enabled = null;

        if( this.source instanceof SupportIsEnable ) {

            enabled = (SupportIsEnable) this.source;

        }

        for (Action action : actions) {

            if( visible==null || visible.isVisible(action) ) {

                JMenuItem item = new JMenuItem(new ActionListenerAdapter(action));

                if( enabled!=null && !enabled.isEnabled(action)) {

                    item.setEnabled(false);

                }

                menu.add(item);

            }

        }

        menu.show(this.component, 0,this.component.getHeight());

    }

}