package commons.utility.spool;

import java.awt.Color;
import java.io.IOException;



import commons.enumerate.AllineamentoCampoSpool_e;
import commons.type.ModifyException;
import commons.utility.field.tranf.PaddingModificator;

import com.lowagie.text.DocumentException;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfContentByte;

public class BoundText implements IBound, IBoundWrite {

	/* nome attributi nel file XML */
	public final static String ATTR_X     = "x";
	public final static String ATTR_Y     = "y";
	public final static String ATTR_ALIGN = "a";
	public final static String ATTR_LEN   = "l";
	public final static String ATTR_NAME  = "nome";
	
	/* tipologia allineamento */
	public static final String CENTRATO  = "c";
	public static final String SINISTRA  = "s";
	public static final String DESTRA    = "d";

	public final static char EMPTY_CHAR = ' ';

	private IPoint point;
	private IFont font;
	private int length;
	private AllineamentoCampoSpool_e alignment;
	private String name;
	private String valore;
	private float angle;
	private float charSpacing;
	private Color color;

	public Color getColor() {
		return color;
	}

	public void setColor(Color color) {
		this.color = color;
	}

	public BoundText(Point point,
	                 IFont font,
	                 int length,
	                 AllineamentoCampoSpool_e align,
	                 String name,
	                 String valore,
	                 float angle,
	                 float charSpacing,
	                 Color color) {

		setPoint(point);
		setFont(font);
		setLength(length);
		setAlignment(align);
		setName(name);
		setValue(valore);
		setCharSpacing(charSpacing);
		setAngle(angle);
		setColor(color);
	}

	public BoundText(Point point,
	                 IFont font,
	                 int length,
	                 AllineamentoCampoSpool_e align,
	                 String name,
	                 String valore) {

		this(point, font, length, align, name, valore, 0, 0, Color.BLACK);
	}

	public AllineamentoCampoSpool_e getAlignment() {
		return alignment;
	}

	public IPoint getPoint() {
		return point;
	}

	public int getLength() {
		return length;
	}

	public String getName() {
		return name;
	}

	public void setAlignment(AllineamentoCampoSpool_e spool_e) {
		alignment = spool_e;
	}

	public void setPoint(IPoint point) {
		this.point = point;
	}

	public void setFont(IFont font) {
		this.font = font;
	}

	public IFont getFont() {
		return font;
	}
	public void setLength(int i) {
		length = i;
	}

	public void setName(String string) {
		name = string;
	}

	public String getValue() {
		return valore;
	}
	public void setValue(String value) {
		valore = value;
	}

	public float getCharSpacing() {
		return charSpacing;
	}

	public void setCharSpacing(float charSpacing) {
		this.charSpacing = charSpacing;
	}
	public float getAngle() {
		return angle;
	}
	public void setAngle(float angle) {
		this.angle = angle;
	}

	public void write(PdfContentByte cb){

		String carat = formatText(this, getValue());

		BaseFont bf;

		try {
			if (font.getBaseFont() != null)
			{
				bf = font.getBaseFont();
			}
			else
			{
				bf = BaseFont.createFont(font.getFontName(), BaseFont.WINANSI, false);
			}

			cb.beginText();

			cb.setFontAndSize(bf, font.getFontHeight());

			cb.setCharacterSpacing(getCharSpacing());

			cb.setColorFill(color);

			cb.showTextAligned(PdfContentByte.ALIGN_LEFT,
			                   carat,
			                   point.getX(),
			                   point.getY(),
			                   angle);

			cb.endText();
		} catch (DocumentException e) {
			throw new RuntimeException( e );
		} catch (IOException e) {
			throw new RuntimeException( e );
		}
			

	}

	/**
	 * Costruisce il testo da scrivere a seconda dell'allineamento
	 * specificato
	 * @param bound
	 * @param value
	 * @return
	 */
	private String formatText(IBound bound, String value) {

		String ret = value;

		if ( bound.getAlignment()!= null
			 && 
			 !AllineamentoCampoSpool_e.NULLO.equals(bound.getAlignment()) ) {

			PaddingModificator pm = new PaddingModificator(PaddingModificator.Padding_e.LEFT, 
			                                               bound.getLength(), 
			                                               EMPTY_CHAR);

			switch (bound.getAlignment().getOrdinal()) {
				case AllineamentoCampoSpool_e.Values.CENTRATO:
					pm.setPadding(PaddingModificator.Padding_e.CENTER);
					break;
				case AllineamentoCampoSpool_e.Values.DESTRA:
					pm.setPadding(PaddingModificator.Padding_e.LEFT);
					break;
				case AllineamentoCampoSpool_e.Values.SINISTRA:
					pm.setPadding(PaddingModificator.Padding_e.RIGHT);
					break;
			}
			try {
				ret = pm.modify(value);
			} catch (ModifyException e) {
				ret = value;
			}
		}

		return ret;

	}

	/**
	 * Traduce l'allineamento del file XML nel tipo
	 * enumerato
	 * @param align
	 * @return
	 */
	public static AllineamentoCampoSpool_e getAlign(String align){    
		if (align.equalsIgnoreCase( CENTRATO ))
			return AllineamentoCampoSpool_e.CENTRATO;
		else if (align.equalsIgnoreCase( SINISTRA ))
			return AllineamentoCampoSpool_e.SINISTRA;
		else if (align.equalsIgnoreCase( DESTRA ))
			return AllineamentoCampoSpool_e.DESTRA;
		else
			return AllineamentoCampoSpool_e.NULLO;
	}
	
	public IAttributeList getAttributes() {
		return null;
	}


}