/*
Violet - A program for editing UML diagrams.
Copyright (C) 2002 Cay S. Horstmann (http://horstmann.com)
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
(at your option) 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.horstmann.violet.framework;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.KeyboardFocusManager;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.AffineTransform;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.ResourceBundle;
import java.util.Set;
import javax.swing.ButtonGroup;
import javax.swing.Icon;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JToggleButton;
import javax.swing.KeyStroke;
import com.horstmann.violet.PointNode;
/**
A tool bar that contains node and edge prototype icons.
Exactly one icon is selected at any time.
*/
public class ToolBar extends JPanel
{
/**
Constructs a tool bar with no icons.
*/
public ToolBar(Graph graph)
{
group = new ButtonGroup();
tools = new ArrayList();
Icon icon = new
Icon()
{
public int getIconHeight() { return BUTTON_SIZE; }
public int getIconWidth() { return BUTTON_SIZE; }
public void paintIcon(Component c, Graphics g,
int x, int y)
{
Graphics2D g2 = (Graphics2D)g;
GraphPanel.drawGrabber(g2, x + OFFSET, y + OFFSET);
GraphPanel.drawGrabber(g2, x + OFFSET, y + BUTTON_SIZE - OFFSET);
GraphPanel.drawGrabber(g2, x + BUTTON_SIZE - OFFSET, y + OFFSET);
GraphPanel.drawGrabber(g2, x + BUTTON_SIZE - OFFSET, y + BUTTON_SIZE - OFFSET);
}
};
final JToggleButton button = new JToggleButton(icon);
ResourceBundle editorResources =
ResourceBundle.getBundle("com.horstmann.violet.framework.EditorStrings");
String tip = editorResources.getString("grabber.tooltip");
button.setToolTipText(tip);
group.add(button);
add(button);
button.setSelected(true);
tools.add(null);
JMenuItem item = new JMenuItem(tip, icon);
item.addActionListener(new
ActionListener()
{
public void actionPerformed(ActionEvent event)
{
button.setSelected(true);
if (popupListener != null)
popupListener.actionPerformed(event);
}
});
popup.add(item);
ResourceBundle graphResources =
ResourceBundle.getBundle(graph.getClass().getName() + "Strings");
Node[] nodeTypes = graph.getNodePrototypes();
for (int i = 0; i < nodeTypes.length; i++)
{
if(nodeTypes[i] != null) {
tip = graphResources.getString("node" + (i + 1) + ".tooltip");
add(nodeTypes[i], tip);
}
}
Edge[] edgeTypes = graph.getEdgePrototypes();
for (int i = 0; i < edgeTypes.length; i++)
{
if(edgeTypes[i] != null) {
tip = graphResources.getString("edge" + (i + 1) + ".tooltip");
add(edgeTypes[i], tip);
}
}
// free up ctrl TAB for cycling windows
Set oldKeys = getFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS);
HashSet newKeys = new HashSet();
newKeys.addAll(oldKeys);
newKeys.remove(KeyStroke.getKeyStroke("ctrl TAB"));
setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, newKeys);
oldKeys = getFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS);
newKeys = new HashSet();
newKeys.addAll(oldKeys);
newKeys.remove(KeyStroke.getKeyStroke("ctrl shift TAB"));
setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, newKeys);
}
/**
Gets the node or edge prototype that is associated with
the currently selected button
@return a Node or Edge prototype
*/
public Object getSelectedTool()
{
for (int i = 0; i < tools.size(); i++)
{
JToggleButton button = (JToggleButton)getComponent(i);
if (button.isSelected()) return tools.get(i);
}
return null;
}
/**
Adds a node to the tool bar.
@param n the node to add
@param tip the tool tip
*/
public void add(final Node n, String tip)
{
Icon icon = new
Icon()
{
public int getIconHeight() { return BUTTON_SIZE; }
public int getIconWidth() { return BUTTON_SIZE; }
public void paintIcon(Component c, Graphics g,
int x, int y)
{
double width = n.getBounds().getWidth();
double height = n.getBounds().getHeight();
Graphics2D g2 = (Graphics2D)g;
double scaleX = (BUTTON_SIZE - OFFSET)/ width;
double scaleY = (BUTTON_SIZE - OFFSET)/ height;
double scale = Math.min(scaleX, scaleY);
AffineTransform oldTransform = g2.getTransform();
g2.translate(x, y);
g2.scale(scale, scale);
g2.translate(Math.max((height - width) / 2, 0), Math.max((width - height) / 2, 0));
g2.setColor(Color.black);
n.draw(g2);
g2.setTransform(oldTransform);
}
};
final JToggleButton button = new JToggleButton(icon);
button.setToolTipText(tip);
group.add(button);
add(button);
tools.add(n);
JMenuItem item = new JMenuItem(tip, icon);
item.addActionListener(new
ActionListener()
{
public void actionPerformed(ActionEvent event)
{
button.setSelected(true);
if (popupListener != null)
popupListener.actionPerformed(event);
}
});
popup.add(item);
}
public void showPopup(final GraphPanel panel, final Point2D p, final ActionListener listener)
{
/*
JPopupMenu popup = new JPopupMenu();
Enumeration buttons = group.getElements();
int i = 0;
while (buttons.hasMoreElements())
{
final Object tool = tools.get(i);
i++;
final JToggleButton button = (JToggleButton) buttons.nextElement();
JMenuItem item = new JMenuItem(button.getToolTipText(), button.getIcon());
item.addActionListener(new
ActionListener()
{
public void actionPerformed(ActionEvent event)
{
button.setSelected(true);
listener.actionPerformed(event);
}
});
popup.add(item);
}
*/
popupListener = listener;
popup.show(panel, (int) p.getX(), (int) p.getY());
}
/**
Adds an edge to the tool bar.
@param n the node to add
@param tip the tool tip
*/
public void add(final Edge e, String tip)
{
Icon icon = new
Icon()
{
public int getIconHeight() { return BUTTON_SIZE; }
public int getIconWidth() { return BUTTON_SIZE; }
public void paintIcon(Component c, Graphics g,
int x, int y)
{
Graphics2D g2 = (Graphics2D)g;
PointNode p = new PointNode();
p.translate(OFFSET, OFFSET);
PointNode q = new PointNode();
q.translate(BUTTON_SIZE - OFFSET, BUTTON_SIZE - OFFSET);
e.connect(p, q);
Rectangle2D bounds = new Rectangle2D.Double();
bounds.add(p.getBounds());
bounds.add(q.getBounds());
bounds.add(e.getBounds(g2));
double width = bounds.getWidth();
double height = bounds.getHeight();
double scaleX = (BUTTON_SIZE - OFFSET)/ width;
double scaleY = (BUTTON_SIZE - OFFSET)/ height;
double scale = Math.min(scaleX, scaleY);
AffineTransform oldTransform = g2.getTransform();
g2.translate(x, y);
g2.scale(scale, scale);
g2.translate(Math.max((height - width) / 2, 0), Math.max((width - height) / 2, 0));
g2.setColor(Color.black);
e.draw(g2);
g2.setTransform(oldTransform);
}
};
final JToggleButton button = new JToggleButton(icon);
button.setToolTipText(tip);
group.add(button);
add(button);
tools.add(e);
JMenuItem item = new JMenuItem(tip, icon);
item.addActionListener(new
ActionListener()
{
public void actionPerformed(ActionEvent event)
{
button.setSelected(true);
if (popupListener != null)
popupListener.actionPerformed(event);
}
});
popup.add(item);
}
private ButtonGroup group;
private ArrayList tools;
private JPopupMenu popup = new JPopupMenu();
private ActionListener popupListener;
private static final int BUTTON_SIZE = 25;
private static final int OFFSET = 4;
}