list.java

有关对pdf操作的代码

        }
        else if (o instanceof String) {
            return this.add(new ListItem((String) o));
        }
        return false;
    }
    
    // extra methods
	
	/** Makes sure all the items in the list have the same indentation. */
    public void normalizeIndentation() {
        float max = 0;
    	Element o;
        for (Iterator i = list.iterator(); i.hasNext(); ) {
        	o = (Element)i.next();
            if (o instanceof ListItem) {
            	max = Math.max(max, ((ListItem)o).getIndentationLeft());
            }
        }
        for (Iterator i = list.iterator(); i.hasNext(); ) {
        	o = (Element)i.next();
            if (o instanceof ListItem) {
            	((ListItem)o).setIndentationLeft(max);
            }
        }
    }
    
    // setters

	/**
	 * @param numbered the numbered to set
	 */
	public void setNumbered(boolean numbered) {
		this.numbered = numbered;
	}

	/**
	 * @param lettered the lettered to set
	 */
	public void setLettered(boolean lettered) {
		this.lettered = lettered;
	}

	/**
	 * @param uppercase the uppercase to set
	 */
	public void setLowercase(boolean uppercase) {
		this.lowercase = uppercase;
	}

	/**
	 * @param autoindent the autoindent to set
	 */
	public void setAutoindent(boolean autoindent) {
		this.autoindent = autoindent;
	}
	/**
	 * @param alignindent the alignindent to set
	 */
	public void setAlignindent(boolean alignindent) {
		this.alignindent = alignindent;
	}
    
    /**
     * Sets the number that has to come first in the list.
     *
     * @param	first		a number
     */
    public void setFirst(int first) {
        this.first = first;
    }
    
    /**
     * Sets the listsymbol.
     *
     * @param	symbol		a <CODE>Chunk</CODE>
     */
    public void setListSymbol(Chunk symbol) {
        this.symbol = symbol;
    }
    
    /**
     * Sets the listsymbol.
     * <P>
     * This is a shortcut for <CODE>setListSymbol(Chunk symbol)</CODE>.
     *
     * @param	symbol		a <CODE>String</CODE>
     */
    public void setListSymbol(String symbol) {
        this.symbol = new Chunk(symbol);
    }
    
    /**
     * Sets the indentation of this paragraph on the left side.
     *
     * @param	indentation		the new indentation
     */
    public void setIndentationLeft(float indentation) {
        this.indentationLeft = indentation;
    }
    
    /**
     * Sets the indentation of this paragraph on the right side.
     *
     * @param	indentation		the new indentation
     */
    public void setIndentationRight(float indentation) {
        this.indentationRight = indentation;
    }

	/**
	 * @param symbolIndent the symbolIndent to set
	 */
	public void setSymbolIndent(float symbolIndent) {
		this.symbolIndent = symbolIndent;
	}
    
    // methods to retrieve information
    
    /**
     * Gets all the items in the list.
     *
     * @return	an <CODE>ArrayList</CODE> containing <CODE>ListItem</CODE>s.
     */
    public ArrayList getItems() {
        return list;
    }
    
    /**
     * Gets the size of the list.
     *
     * @return	a <CODE>size</CODE>
     */
    public int size() {
        return list.size();
    }

    /**
     * Returns <CODE>true</CODE> if the list is empty.
     * 
     * @return <CODE>true</CODE> if the list is empty
     */
    public boolean isEmpty() {
    	return list.isEmpty();
    }

    /**
     * Gets the leading of the first listitem.
     *
     * @return	a <CODE>leading</CODE>
     */
    public float getTotalLeading() {
        if (list.size() < 1) {
            return -1;
        }
        ListItem item = (ListItem) list.get(0);
        return item.getTotalLeading();
    }
    
    // getters
    
    /**
     * Checks if the list is numbered.
     * @return	<CODE>true</CODE> if the list is numbered, <CODE>false</CODE> otherwise.
     */
    
    public boolean isNumbered() {
        return numbered;
    }

    /**
     * Checks if the list is lettered.
     * @return  <CODE>true</CODE> if the list is lettered, <CODE>false</CODE> otherwise.
     */
    public boolean isLettered() {
        return lettered;
    }

    /**
     * Checks if the list lettering is lowercase.
     * @return  <CODE>true</CODE> if it is lowercase, <CODE>false</CODE> otherwise.
     */
    public boolean isLowercase() {
        return lowercase;
    }
    
    /**
     * Checks if the indentation of list items is done automatically.
	 * @return the autoindent
	 */
	public boolean isAutoindent() {
		return autoindent;
	}
	
	/**
	 * Checks if all the listitems should be aligned.
	 * @return the alignindent
	 */
	public boolean isAlignindent() {
		return alignindent;
	}

	/**
     * Gets the first number        .
     * @return a number
	 */
	public int getFirst() {
		return first;
	}

	/**
     * Gets the Chunk containing the symbol.
     * @return a Chunk with a symbol
	 */
	public Chunk getSymbol() {
		return symbol;
	}

	/**
     * Gets the indentation of this paragraph on the left side.
     * @return	the indentation
	 */
	public float getIndentationLeft() {
		return indentationLeft;
	}

	/**
     * Gets the indentation of this paragraph on the right side.
     * @return	the indentation
	 */
	public float getIndentationRight() {
		return indentationRight;
	}

	/**
     * Gets the symbol indentation.
     * @return the symbol indentation
	 */
	public float getSymbolIndent() {
		return symbolIndent;
	}
	/**
	 * @see com.lowagie.text.Element#isContent()
	 * @since	iText 2.0.8
	 */
	public boolean isContent() {
		return true;
	}

	/**
	 * @see com.lowagie.text.Element#isNestable()
	 * @since	iText 2.0.8
	 */
	public boolean isNestable() {
		return true;
	}

	/**
	 * Returns the String that is after a number or letter in the list symbol.
	 * @return	the String that is after a number or letter in the list symbol
	 * @since	iText 2.1.1
	 */
	public String getPostSymbol() {
		return postSymbol;
	}

	/**
	 * Sets the String that has to be added after a number or letter in the list symbol.
	 * @since	iText 2.1.1
	 * @param	postSymbol the String that has to be added after a number or letter in the list symbol.
	 */
	public void setPostSymbol(String postSymbol) {
		this.postSymbol = postSymbol;
	}

	/**
	 * Returns the String that is before a number or letter in the list symbol.
	 * @return	the String that is before a number or letter in the list symbol
	 * @since	iText 2.1.1
	 */
	public String getPreSymbol() {
		return preSymbol;
	}

	/**
	 * Sets the String that has to be added before a number or letter in the list symbol.
	 * @since	iText 2.1.1
	 * @param	preSymbol the String that has to be added before a number or letter in the list symbol.
	 */
	public void setPreSymbol(String preSymbol) {
		this.preSymbol = preSymbol;
	}

}