PDFlib Cookbook

cookbook

table/mixed_table_contents

Demonstrate how to place various kinds of contents in table cells spanning one or more columns or rows.

Download Java Code  Switch to PHP Code  Show Output 

/*
 * Mixed table contents:
 * Demonstrate how to place various kinds of contents in table cells spanning
 * one or more columns or rows
 * 
 * Create a table with various kinds of contents. 
 * Place a text line spanning several columns and colorize the background of the
 * cell.
 * Place a text line and a Textflow in two neighbour cells of the same row and
 * vertically align them so that they have the same distance from the left and
 * upper cell borders.
 * Place an image in a cell spanning several rows and place a text line on top
 * of it in the same cell.
 * 
 * Required software: PDFlib/PDFlib+PDI/PPS 9
 * Required data: image file
 */
package com.pdflib.cookbook.pdflib.table;

import com.pdflib.pdflib;
import com.pdflib.PDFlibException;

public class mixed_table_contents
{
    public static void main (String argv[])
    {
        /* This is where the data files are. Adjust as necessary. */
        String searchpath = "../input";
        String outfile = "mixed_table_contents.pdf";
        String title = "Mixed Table Contents";

        pdflib p = null;
        int normalfont, boldfont, image, tf=-1, tbl=-1;
        String tftext, result, optlist;
        String imagefile = "kraxi_logo.tif";
        int exitcode = 0;
        
        /* Width of the first, second, and third column of the table */
        final int c1 = 50, c2 = 120, c3 = 90;
        
        /* Coordinates of the lower left and upper right corners of the table 
         * fitbox. The width of the fitbox matches the sum of the widths of the
         * three table columns. 
         */
        final double llx = 100, lly = 500, urx = 360, ury = 600;
        
        try {
            p = new pdflib();

            p.set_option("searchpath={" + searchpath + "}");

            /* This means we must check return values of load_font() etc. */
            p.set_option("errorpolicy=return");

            if (p.begin_document(outfile, "") == -1)
            throw new Exception("Error: " + p.get_errmsg());

            p.set_info("Creator", "PDFlib Cookbook");
            p.set_info("Title", title);

            /* Load the font */
            boldfont = p.load_font("Helvetica-Bold", "unicode", "");
            if (boldfont == -1)
                    throw new Exception("Error: " + p.get_errmsg());
            
            normalfont = p.load_font("Helvetica", "unicode", "");
            if (normalfont == -1)
                    throw new Exception("Error: " + p.get_errmsg());

            p.begin_page_ext(0, 0, "width=a4.width height=a4.height");
                    
            
            /* ---------------------
             * Adding the first cell
             * ---------------------
             * 
             * The cell will be placed in the first column of the first row and will
             * span three columns. 
             * The first column has a width of 50 points.
             * The text line is centered vertically and horizontally, with a margin
             * of 4 points from all borders. 
             */
            optlist = "fittextline={font=" + boldfont + " fontsize=12" +
                " position=center} margin=4 colspan=3 colwidth=" + c1;

            tbl = p.add_table_cell(tbl, 1, 1, "Our Paper Plane Models", optlist);
            if (tbl == -1)
                    throw new Exception("Error: " + p.get_errmsg());
     
            
            /* -------------------------------------------
             * Adding the second cell spanning two columns
             * -------------------------------------------
             *
             * The cell is placed in the first column of the second row and spans
             * two columns.
             * The first column has a width of 50 points.
             * The row height is 14 points.
             * The text line is horizontally positioned on the left and vertically
             * centered, with a margin of 4 points from all borders.
             * Since we want to vertically align text lines and a Textflow we would
             * like to have an exact font size of 8 but using the option 
             * "fontsize=8" does not exactly represent the letter height but adds
             * some space below and above. However, the height of an uppercase
             * letter is exactly represented by the capheight value of the font. For
             * this reason use "fontsize={capheight=6}" which will approximately
             * result in a font size of 8 points and (along with "margin=4"), will
             * sum up to an overall height of 14 points corresponding to the
             * "rowheight" option. 
             * Since the cell doesn't cover a complete row but only two of
             * three columns it cannot be filled with color using on of the
             * row-based shading options. We apply the Matchbox feature instead to
             * fill the rectangle covered by the cell with a gray background color. 
             */
            optlist = "fittextline={position={left top} font=" + boldfont + 
                " fontsize={capheight=6}} rowheight=14 colwidth=" + c1 + 
                " margin=4 colspan=2 matchbox={fillcolor={gray .92}}";
            
            tbl = p.add_table_cell(tbl, 1, 2, "1  Giant Wing", optlist);
            if (tbl == -1)
                    throw new Exception("Error: " + p.get_errmsg());
            
            
            /* ---------------------------------
             * Adding three more text line cells
             * ---------------------------------
             *
             * Add two more text lines in the first column of the third row as well
             * as in the first column of the fourth row. For a description of the
             * options see above, 
             */
            optlist = "fittextline={position={left top} font=" + normalfont + 
                " fontsize={capheight=6}} rowheight=14 colwidth=" + c1 +
                " margin=4";
            
            tbl = p.add_table_cell(tbl, 1, 3, "Material", optlist);
            if (tbl == -1)
                throw new Exception("Error: " + p.get_errmsg());

            tbl = p.add_table_cell(tbl, 1, 4, "Benefit", optlist);
            if (tbl == -1)
                throw new Exception("Error: " + p.get_errmsg());
            
            /* Add another text line in the second column of the third row with a
             * column width of 120. For a description of the options see above.
             */
            optlist = "fittextline={position={left top} font=" + normalfont + 
                " fontsize={capheight=6}} rowheight=14 colwidth=" + c2 +
                " margin=4";

            tbl = p.add_table_cell(tbl, 2, 3, "Offset print paper 220g/sqm",
                optlist);
            if (tbl == -1)
                    throw new Exception("Error: " + p.get_errmsg());
            
            
            /* ------------------------
             * Adding the Textflow cell
             * ------------------------
             * 
             */
            tftext = 
                    "It is amazingly robust and can even do aerobatics. " +
                    "But it is best suited to gliding.";
            
            /* Prepare the option list for adding the Textflow
             * 
             * Use "fontsize={capheight=6}" which will approximately result in a
             * font size of 8 points and (along with "margin=4"), will sum up to an
             * overall height of 14 points as for the text lines above.
             */
            optlist = "font=" + normalfont + " fontsize={capheight=6} leading=110%"; 
            
            /* Add the Textflow to be placed in a table cell later */
            tf = p.add_textflow(-1, tftext, optlist);
            if (tf == -1)
                    throw new Exception("Error: " + p.get_errmsg());
            
            /* Prepare the option list for adding the Textflow table cell 
             * 
             * The first line of the Textflow should be aligned with the baseline of
             * the "Benefit" text line. At the same time, the "Benefit" text should
             * have the same distance from the top cell border as the "Material"
             * text. To avoid any space from the top add the Textflow cell using
             * "fittextflow={firstlinedist=capheight}". Then add a margin of 4
             * points, the same as for the text lines.
             */
            optlist = "textflow=" + tf + " fittextflow={firstlinedist=capheight} " +
                "colwidth=" + c2 + " margin=4";

            tbl = p.add_table_cell(tbl, 2, 4, "", optlist);
            if (tbl == -1)
                throw new Exception("Error: " + p.get_errmsg());
            
            
            /* -----------------------------------
             * Add the image cell with a text line
             * -----------------------------------
             * 
             * The image is placed in a cell starting in the third column of the
             * second row and spans three rows.
             * The column width is 90 points. The cell margins are set to 4 points. 
             */
            image = p.load_image("auto", imagefile, "");
            if (image == -1)
                throw new Exception("Error: " + p.get_errmsg());

            optlist = "fittextline={font=" + boldfont + " fontsize=9} image=" +
                image + " colwidth=" + c3 + " rowspan=3 margin=4";

            tbl = p.add_table_cell(tbl, 3, 2, "Amazingly robust!", optlist);
            if (tbl == -1)
                throw new Exception("Error: " + p.get_errmsg());
            
            
            /* -------------
             * Fit the table
             * -------------
             * 
             * Using "header=1" the table header will include the first line.
             * The "fill" option and the suboptions "area=header" and
             * "fillcolor={rgb 0.8 0.8 0.87}" specify the header row(s) to be filled
             * with the supplied color. 
             * The "stroke" option and the suboptions "line=frame linewidth=0.8" 
             * define the ruling of the table frame with a line width of 0.8.
             * Using "line=other linewidth=0.3" the ruling of all cells is specified
             * with a line width of 0.3.
             */
            optlist = "header=1 fill={{area=header fillcolor={rgb 0.8 0.8 0.87}}}" +
                " stroke={{line=frame linewidth=0.8} {line=other linewidth=0.3}}";
            
            result = p.fit_table(tbl, llx, lly, urx, ury, optlist);
            
            /* Check the result; "_stop" means all is ok */
            if (!result.equals("_stop")) {
                if (result.equals( "_error"))
                    throw new Exception("Error: " + p.get_errmsg());
                else {
                    /* Other return values require dedicated code to deal with */
                }
            }
            p.end_page_ext("");
            
            p.end_document("");

        } catch (PDFlibException e) {
            System.err.println("PDFlib exception occurred:");

            exitcode = 1;
        } catch (Exception e) {
            System.err.println(e);
            exitcode = 1;
        } finally {
            if (p != null) {
                p.delete();
            }
            System.exit(exitcode);
        }
    }
}