/*
 * Switch_Project.bsh - a BeanShell macro script to switch Projects
 * (this macro requires the ProjectViewer plugin to work!)
 *
 * Copyright (C) 2005 Jeroen Budts, http://dev.budts.be
 * This script contains code from Buffer_Switcher.bsh which is
 * Copyright (C) 2001-2004 Ollie Rutherfurd, oliver@rutherfurd.net
 *
 * :mode=beanshell:tabSize=4:indentSize=4:maxLineLen=0:noTabs=false:
 * :indentOnTab=true:indentOnEnter=true:folding=explicit:collapseFolds=1:
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with the jEdit program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * You can download the most recent version of this macro (and probably others)
 * from my DARCS repository:
 * $ darcs get http://dev.budts.be/darcs/jedit-macros
 */

import javax.swing.border.EmptyBorder;

EditPlugin getProjectViewerPlugin() {
	jEdit.getPlugin("projectviewer.ProjectPlugin",true);
}

boolean foundProjectViewerPlugin() {
	return getProjectViewerPlugin() != null;
}

void warnProjectViewerPluginNotFound() {
	Macros.error(view, "ProjectViewer was not found!");
}

Object[] getProjects() {
	import projectviewer.ProjectManager;
	import projectviewer.vpt.VPTProject;

	// Why does getProjects return an iterator and not some kind of collection?

	List l = new ArrayList();

	pm = ProjectManager.getInstance();
	Iterator it = pm.getProjects();
	while (it.hasNext()) {
		l.add((VPTProject) it.next());
	}
	return l.toArray();
}

showSwitchDialog(Object[] projects) {
	dialog = new JDialog(view, "Switch project", true);
	content = new JPanel(new BorderLayout());
	content.setBorder(new EmptyBorder(12,12,12,12));
	dialog.setContentPane(content);

	projectList = new JList(projects);
	projectList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
	content.add(new JScrollPane(projectList), BorderLayout.CENTER);

	buttonPanel = new JPanel();
	buttonPanel.setLayout(new BoxLayout(buttonPanel,
		BoxLayout.X_AXIS));

	buttonPanel.setBorder(new EmptyBorder(12,50,0,50));
	buttonPanel.add(Box.createGlue());
	ok = new JButton("OK");
	close = new JButton("Close");
	ok.setPreferredSize(close.getPreferredSize());
	dialog.getRootPane().setDefaultButton(ok);
	buttonPanel.add(ok);
	buttonPanel.add(Box.createHorizontalStrut(6));
	buttonPanel.add(close);
	buttonPanel.add(Box.createGlue());
	content.add(buttonPanel, BorderLayout.SOUTH);

	void switchBuffer()
	{
		_project = projectList.getSelectedValue();
		if(_project == projectList) {
			view.getToolkit().beep();
		} else {
			import projectviewer.ProjectViewer;
			p = ProjectViewer.getViewer(view);
			p.setProject(_project);
		}
	}

	void actionPerformed(evt) {
		if(evt.getSource() == ok) {
			switchBuffer();
		}
		dialog.dispose();
		dialog = null;
	}

	void keyPressed(evt) {
		if(evt.getKeyCode() == KeyEvent.VK_ESCAPE) {
			dialog.dispose();
		}
	}

	void keyReleased(evt) {
		int selected = projectList.getSelectedIndex();
		if(selected > -1) {
			bufferList.ensureIndexIsVisible(selected);
		}
	}

	void keyTyped(evt){}

	void mouseClicked(evt) {
		if(evt.getClickCount() > 1) 	{
			switchBuffer();
			dialog.dispose();
		}
	}

	void mouseEntered(evt){}
	void mouseExited(evt){}
	void mousePressed(evt){}
	void mouseReleased(evt){}

	dialog.addKeyListener(this);
	projectList.addKeyListener(this);
	projectList.addMouseListener(this);
	ok.addActionListener(this);
	close.addActionListener(this);

	dialog.pack();
	import projectviewer.vpt.VPTNode;
	import projectviewer.ProjectViewer;
	projectList.setSelectedValue(VPTNode.findProjectFor(ProjectViewer.getActiveProject(view)), true);
	dialog.setLocationRelativeTo(view);
	dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
	dialog.setVisible(true);
}

void switchProject() {
	if (!foundProjectViewerPlugin()) {
		warnProjectViewerPluginNotFound();
	} else {
		showSwitchDialog(getProjects());
	}
}

// start the macro
switchProject();