FX

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. 
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 * This file is available and licensed under the following license:
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 * modification, are permitted provided that the following conditions are met:
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 *     may be used to endorse or promote products derived from this software 
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 * 
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 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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package tweeter.view.list;

import javafx.scene.control.ScrollBar;
import javafx.scene.CustomNode;
import javafx.scene.Group;
import javafx.scene.layout.VBox;
import javafx.scene.Node;
import javafx.scene.shape.Rectangle;
import javafx.scene.input.KeyCode;
import javafx.util.Math;
import tweeter.view.list.ListItem;
import tweeter.view.TweeterView;

/**
 * @author Rakesh Menon
 */

public class ListView extends CustomNode {
    
    public var listItem : ListItem[];    
    public var height = 276.0;
    public var itemWidth = 218.0;
    
    public var selectedListItem : ListItem;

    override var focusTraversable = true;
    
    var scrollBar : ScrollBar = ScrollBar {
        translateX: bind (TweeterView.width - 9 - scrollBar.width)
        translateY: 0
        min: 0
        max: bind Math.max((listView.boundsInLocal.height - height), 0)
        vertical: true
        height: height
        blockIncrement: ListItem.height
        focusTraversable: false
        blocksMouse: true
    };

    var listView = VBox {
        spacing: 0
        translateX: 2
        translateY: bind -(scrollBar.value) + 2
        content: bind listItem
        focusTraversable: false
    };

    override var onKeyPressed = function(e) {
        if(e.code == KeyCode.VK_UP) {
            scrollBar.adjustValue(-1);
        } else if(e.code == KeyCode.VK_DOWN) {
            scrollBar.adjustValue(1);
        }
    }

    override function create() : Node {
        
        Group {
            content: [
                Group {
                    content: [ listView ]
                },
                scrollBar
            ]
        }
    }
}