FX

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 * modification, are permitted provided that the following conditions are met:
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 *     this list of conditions and the following disclaimer.
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 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
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 *     may be used to endorse or promote products derived from this software 
 *     without specific prior written permission.
 * 
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 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package colorchooser;

import colorchooser.ColorPalette;
import javafx.scene.CustomNode;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.paint.Color;
import javafx.scene.shape.ClosePath;
import javafx.scene.shape.Line;
import javafx.scene.shape.LineTo;
import javafx.scene.shape.MoveTo;
import javafx.scene.shape.Path;
import javafx.scene.shape.Rectangle;

/**
 * @author Rakesh Menon
 */

public class ColorChooser extends CustomNode {
    
    public-init var color : Color;
    public var updateColor: function(clr : Color) = null;
    
    var colorPalette = ColorPalette {
        translateX: 0
        translateY: 22
    };
    
    var colorRect = Rectangle {
        width: 40
        height: 20
        strokeWidth: 3.0
        stroke: Color.WHITE
        fill: bind color
        onMousePressed: function(e) {
            colorPalette.show = not colorPalette.show;
        }
    }

    var borderRect = Rectangle {
        x: 1
        y: 1
        width: 38
        height: 18
        strokeWidth: 1.0
        stroke: Color.web("#E6E6E6")
        fill: Color.TRANSPARENT
    }

    var vLine1 = Line {
        startX: 2
        startY: 2
        endX: 2
        endY: 17
        stroke: Color.web("#9B9B9B")
    }

    var hLine1 = Line {
        startX: 2
        startY: 2
        endX: 37
        endY: 2
        stroke: Color.web("#9B9B9B")
    }

    var vLine2 = Line {
        startX: 41
        startY: 0
        endX: 41
        endY: 20
        stroke: Color.web("#9B9B9B")
    }

    var hLine2 = Line {
        startX: 0
        startY: 21
        endX: 40
        endY: 21
        stroke: Color.web("#9B9B9B")
    }

    var arrow = Path {
        translateX: 31
        translateY: 15
        elements: [
            MoveTo { x: 0.0 y: 0.0 },
            LineTo { x: 8.0 y: 0.0 },
            LineTo { x: 4.0 y: 4.0 },
            ClosePath { }
        ]
        strokeWidth: 1.0
        fill: Color.BLACK
        stroke: Color.web("#9B9B9B")
    };

    var initialized = false;
    var cpColor = bind colorPalette.color on replace {
        if(initialized) {
            color = cpColor;
            if(updateColor != null) {
                updateColor(color);
            }
        }
    };

    init {
        
        if(color == null) {
            color = colorPalette.color;
        } else {
            colorPalette.color = color;
        }

        focusTraversable = true;
        initialized = true;
    }

    override function create() : Node {

        colorPalette.color = color;
        
        Group {
            content: [ 
                colorRect,
                borderRect,
                vLine1,
                hLine1,
                vLine2,
                hLine2,
                arrow,
                colorPalette
            ]
        };
    }

    override var focused on replace {
        if(not focused) {
            colorPalette.show = false;
        }
    }
}