pdfptable.java

iText是一个能够快速产生PDF文件的java类库。iText的java类对于那些要产生包含文本

     * and the table crosses pages.
     * @param headerRows the number of the top rows that constitute the header
     */
    public void setHeaderRows(int headerRows) {
        if (headerRows < 0)
            headerRows = 0;
        this.headerRows = headerRows;
    }
    
    /**
     * Gets all the chunks in this element.
     *
     * @return	an <CODE>ArrayList</CODE>
     */
    public ArrayList getChunks() {
        return new ArrayList();
    }
    
    /**
     * Gets the type of the text element.
     *
     * @return	a type
     */
    public int type() {
        return Element.PTABLE;
    }
    
    /**
     * Processes the element by adding it (or the different parts) to an
     * <CODE>ElementListener</CODE>.
     *
     * @param	listener	an <CODE>ElementListener</CODE>
     * @return	<CODE>true</CODE> if the element was processed successfully
     */
    public boolean process(ElementListener listener) {
        try {
            return listener.add(this);
        }
        catch(DocumentException de) {
            return false;
        }
    }
    
    /** Gets the width percentage that the table will occupy in the page.
     * @return the width percentage that the table will occupy in the page
     */
    public float getWidthPercentage() {
        return widthPercentage;
    }
    
    /** Sets the width percentage that the table will occupy in the page.
     * @param widthPercentage the width percentage that the table will occupy in the page
     */
    public void setWidthPercentage(float widthPercentage) {
        this.widthPercentage = widthPercentage;
    }
    
    /** Gets the horizontal alignment of the table relative to the page.
     * @return the horizontal alignment of the table relative to the page
     */
    public int getHorizontalAlignment() {
        return horizontalAlignment;
    }
    
    /** Sets the horizontal alignment of the table relative to the page.
     * It only has meaning if the width percentage is less than
     * 100%.
     * @param horizontalAlignment the horizontal alignment of the table relative to the page
     */
    public void setHorizontalAlignment(int horizontalAlignment) {
        this.horizontalAlignment = horizontalAlignment;
    }
    
    /**
     * Gets a row with a given index
     * (added by Jin-Hsia Yang).
     * @param idx
     * @return the row at position idx
     */
    public PdfPRow getRow(int idx) {
        return (PdfPRow)rows.get(idx);
    }

    /**
     * Gets an arraylist with all the rows in the table.
     * @return an arraylist
     */
    public ArrayList getRows() {
        return rows;
    }

    /** Sets the table event for this table.
     * @param event the table event for this table
     */    
    public void setTableEvent(PdfPTableEvent event) {
    	if (event == null) this.tableEvent = null;
    	else if (this.tableEvent == null) this.tableEvent = event;
    	else if (this.tableEvent instanceof PdfPTableEventForwarder) ((PdfPTableEventForwarder)this.tableEvent).addTableEvent(event);
    	else {
    		PdfPTableEventForwarder forward = new PdfPTableEventForwarder();
    		forward.addTableEvent(this.tableEvent);
    		forward.addTableEvent(event);
    		this.tableEvent = forward;
    	}
    }
    
    /** Gets the table event for this page.
     * @return the table event for this page
     */    
    public PdfPTableEvent getTableEvent() {
        return tableEvent;
    }
    
    /** Gets the absolute sizes of each column width.
     * @return he absolute sizes of each column width
     */    
    public float[] getAbsoluteWidths() {
        return absoluteWidths;
    }
    
    float [][] getEventWidths(float xPos, int firstRow, int lastRow, boolean includeHeaders) {
        if (includeHeaders) {
            firstRow = Math.max(firstRow, headerRows);
            lastRow = Math.max(lastRow, headerRows);
        }
        float widths[][] = new float[(includeHeaders ? headerRows : 0) + lastRow - firstRow][];
        if (isColspan) {
            int n = 0;
            if (includeHeaders) {
                for (int k = 0; k < headerRows; ++k) {
                    PdfPRow row = (PdfPRow)rows.get(k);
                    if (row == null)
                        ++n;
                    else
                        widths[n++] = row.getEventWidth(xPos);
                }
            }
            for (; firstRow < lastRow; ++firstRow) {
                    PdfPRow row = (PdfPRow)rows.get(firstRow);
                    if (row == null)
                        ++n;
                    else
                        widths[n++] = row.getEventWidth(xPos);
            }
        }
        else {
            float width[] = new float[absoluteWidths.length + 1];
            width[0] = xPos;
            for (int k = 0; k < absoluteWidths.length; ++k)
                width[k + 1] = width[k] + absoluteWidths[k];
            for (int k = 0; k < widths.length; ++k)
                widths[k] = width;
        }
        return widths;
    }


    /** Getter for property skipFirstHeader.
     * @return Value of property skipFirstHeader.
     */
    public boolean isSkipFirstHeader() {
        return skipFirstHeader;
    }
    
    /** Skips the printing of the first header. Used when printing
     * tables in succession belonging to the same printed table aspect.
     * @param skipFirstHeader New value of property skipFirstHeader.
     */
    public void setSkipFirstHeader(boolean skipFirstHeader) {
        this.skipFirstHeader = skipFirstHeader;
    }

    /**
     * Sets the run direction of the contents of the table.
     * @param runDirection
     */
    public void setRunDirection(int runDirection) {
        if (runDirection < PdfWriter.RUN_DIRECTION_DEFAULT || runDirection > PdfWriter.RUN_DIRECTION_RTL)
            throw new RuntimeException("Invalid run direction: " + runDirection);
        this.runDirection = runDirection;
    }
    
    /**
     * Returns the run direction of the contents in the table.
     * @return One of the following values: PdfWriter.RUN_DIRECTION_DEFAULT, PdfWriter.RUN_DIRECTION_NO_BIDI, PdfWriter.RUN_DIRECTION_LTR or PdfWriter.RUN_DIRECTION_RTL.
     */
    public int getRunDirection() {
        return runDirection;
    }
    
    /**
     * Getter for property lockedWidth.
     * @return Value of property lockedWidth.
     */
    public boolean isLockedWidth() {
        return this.lockedWidth;
    }
    
    /**
     * Uses the value in <CODE>setTotalWidth()</CODE> in <CODE>Document.add()</CODE>.
     * @param lockedWidth <CODE>true</CODE> to use the value in <CODE>setTotalWidth()</CODE> in <CODE>Document.add()</CODE>
     */
    public void setLockedWidth(boolean lockedWidth) {
        this.lockedWidth = lockedWidth;
    }
    
    /**
     * Gets the split value.
     * @return true to split; false otherwise
     */
    public boolean isSplitRows() {
        return this.splitRows;
    }
    
    /**
     * When set the rows that won't fit in the page will be split. 
     * Note that it takes at least twice the memory to handle a split table row
     * than a normal table. <CODE>true</CODE> by default.
     * @param splitRows true to split; false otherwise
     */
    public void setSplitRows(boolean splitRows) {
        this.splitRows = splitRows;
    }
    
/**
 * Sets the spacing before this table.
 *
 * @param	spacing		the new spacing
 */
    
    public void setSpacingBefore(float spacing) {
        this.spacingBefore = spacing;
    }
    
/**
 * Sets the spacing after this table.
 *
 * @param	spacing		the new spacing
 */
    
    public void setSpacingAfter(float spacing) {
        this.spacingAfter = spacing;
    }    

/**
 * Gets the spacing before this table.
 *
 * @return	the spacing
 */
    
    public float spacingBefore() {
        return spacingBefore;
    }
    
/**
 * Gets the spacing before this table.
 *
 * @return	the spacing
 */
    
    public float spacingAfter() {
        return spacingAfter;
    }    
    
    /**
     *  Gets the value of the last row extension.
     * @return true if the last row will extend; false otherwise
     */
    public boolean isExtendLastRow() {
        return this.extendLastRow;
    }
    
    /**
     * When set the last row will be extended to fill all the remaining space to the
     * bottom boundary.
     * @param extendLastRow true to extend the last row; false otherwise
     */
    public void setExtendLastRow(boolean extendLastRow) {
        this.extendLastRow = extendLastRow;
    }
    
    /**
     * Gets the header status inclusion in PdfPTableEvent.
     * @return true if the headers are included; false otherwise
     */
    public boolean isHeadersInEvent() {
        return this.headersInEvent;
    }
    
    /**
     * When set the PdfPTableEvent will include the headers.
     * @param headersInEvent true to include the headers; false otherwise
     */
    public void setHeadersInEvent(boolean headersInEvent) {
        this.headersInEvent = headersInEvent;
    }
    
    /**
     * Gets the property splitLate.
     * @return the property splitLate
     */
    public boolean isSplitLate() {
        return this.splitLate;
    }
    
    /**
     * If true the row will only split if it's the first one in an empty page.
     * It's true by default.
     *<p>
     * It's only meaningful if setSplitRows(true).
     * @param splitLate the property value
     */
    public void setSplitLate(boolean splitLate) {
        this.splitLate = splitLate;
    }
    
    /**
     * If true the table will be kept on one page if it fits, by forcing a 
     * new page if it doesn't fit on the current page. The default is to
     * split the table over multiple pages.
     *
     * @param p_KeepTogether whether to try to keep the table on one page
     */
    public void setKeepTogether(boolean p_KeepTogether) {
        keepTogether = p_KeepTogether;
    }
     
    public boolean getKeepTogether() {
        return keepTogether;
    }
    
    /**
     * Gets the number of rows in the footer.
     * @return the number of rows in the footer
     */
    public int getFooterRows() {
        return this.footerRows;
    }
    
    /**
     * Sets the number of rows to be used for the footer. The number
     * of footer rows are subtracted from the header rows. For
     * example, for a table with two header rows and one footer row the
     * code would be:
     * <p>
     * <PRE>
     * table.setHeaderRows(3);
     * table.setFooterRows(1);
     * </PRE>
     * <p>
     * Row 0 and 1 will be the header rows and row 2 will be the footer row.
     * @param footerRows the number of rows to be used for the footer
     */
    public void setFooterRows(int footerRows) {
        if (footerRows < 0)
            footerRows = 0;
        this.footerRows = footerRows;
    }
    
}