// BlogBridge -- RSS feed reader, manager, and web based service
// Copyright (C) 2002-2006 by R. Pito Salas
//
// 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
//
// Contact: R. Pito Salas
// mailto:pitosalas@users.sourceforge.net
// More information: about BlogBridge
// http://www.blogbridge.com
// http://sourceforge.net/projects/blogbridge
//
// $Id $
//
package com.salas.bb.utils.feedscollections;
import com.salas.bb.utils.uif.CheckBoxList;
import com.salas.bb.views.stylesheets.IStylesheet;
import com.salas.bb.views.stylesheets.StylesheetManager;
import com.salas.bb.views.stylesheets.domain.IRule;
import com.jgoodies.forms.layout.FormLayout;
import com.jgoodies.forms.layout.CellConstraints;
import javax.swing.*;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeEvent;
import java.util.Vector;
import java.awt.*;
/**
* Collections list component.
*/
class CList extends CheckBoxList
{
/**
* Creates component.
*
* @param collection collection.
* @param readingLists <code>TRUE</code> if showing reading lists.
*/
public CList(Collection collection, boolean readingLists)
{
setCellRenderer(new CellRenderer(StylesheetManager.getSuggestionsStylesheet(), readingLists));
setListData(CItemCheckBox.wrap(collection));
}
/**
* Collection check box.
*/
static class CItemCheckBox extends JCheckBox implements PropertyChangeListener
{
private CollectionItem item;
/**
* Creates an initially unselected check box button with no text, no icon.
*
* @param item item to wrap with this component.
*/
public CItemCheckBox(CollectionItem item)
{
setSelected(item.isSelected());
setText(item.getTitle());
this.item = item;
item.addListener(this);
}
/**
* Returns the item.
*
* @return the item.
*/
public CollectionItem getItem()
{
return item;
}
/**
* Notifies all listeners that have registered interest for
* notification on this event type. The event instance
* is lazily created.
*
* @see javax.swing.event.EventListenerList
*/
protected void fireStateChanged()
{
super.fireStateChanged();
if (item != null) item.setSelected(isSelected());
}
/**
* This method gets called when a bound property is changed.
*
* @param evt A PropertyChangeEvent object describing the event source
* and the property that has changed.
*/
public void propertyChange(PropertyChangeEvent evt)
{
setSelected(item.isSelected());
}
/**
* Wraps each node and all or it's leaf-sub-nodes with JCheckBox.
*
* @param node node to convert to list of checkboxes.
*
* @return check boxes.
*/
public static Vector wrap(CollectionNode node)
{
Vector checkboxes = new Vector();
if (node instanceof CollectionItem)
{
checkboxes.add(new CItemCheckBox((CollectionItem)node));
} else if (node instanceof CollectionFolder)
{
CollectionFolder folder = (CollectionFolder)node;
int count = folder.getChildCount();
for (int i = 0; i < count; i++)
{
checkboxes.addAll(wrap((CollectionNode)folder.getChildAt(i)));
}
}
return checkboxes;
}
}
/**
* Custom renderer of check-box list cell.
*/
private class CellRenderer extends DefaultListCellRenderer implements ListCellRenderer
{
private final Font defFont;
private final IStylesheet stylesheet;
private final boolean readingLists;
private final JCheckBox box = new JCheckBox();
private final JPanel panel = new JPanel();
public CellRenderer(IStylesheet stylesheet, boolean readingLists)
{
this.stylesheet = stylesheet;
this.readingLists = readingLists;
defFont = getFont();
CellConstraints cc = new CellConstraints();
FormLayout layout = new FormLayout("1dlu, p, 1dlu, p:grow", "p");
panel.setLayout(layout);
panel.add(box, cc.xy(2, 1));
panel.add(this, cc.xy(4, 1));
box.setOpaque(false);
panel.setOpaque(false);
setIcon(null);
}
public Component getListCellRendererComponent(JList list, Object value, int index,
boolean isSelected, boolean cellHasFocus)
{
CItemCheckBox cb = (CItemCheckBox)value;
super.getListCellRendererComponent(list, cb.getText(), index, isSelected, cellHasFocus);
box.setSelected(cb.isSelected());
CollectionItem item = cb.getItem();
String el = readingLists ? "folder" : "item";
String[] tags = new String[0]; // TODO fetch tags
panel.setBackground(isSelected ? getSelectionBackground() : getBackground());
box.setBackground(isSelected ? getSelectionBackground() : getBackground());
IRule rule = stylesheet.getRule(el, tags);
if (rule != null)
{
// Update font
Font fnt = rule.getFont();
boolean bold = fnt != null && fnt.isBold();
if (defFont.isBold() != bold) setFont(defFont.deriveFont(bold ? Font.BOLD : Font.PLAIN));
// Update color
if (!isSelected)
{
Color color = rule.getColor();
if (color == null) color = Color.BLACK;
setForeground(color);
}
// Assign icon
Icon icon = rule.getIcon();
setIcon(icon);
}
// checkbox.setFocusPainted(false);
// checkbox.setBorderPainted(true);
return panel;
}
}
}