table/spread_oversized_table
Output a table on 2 x m pages as it is needed to fit it completely. A table has a width which exceeds the width of the page. Therefore, output the table on a pair of pages with one page acting as the left and one page acting as the right page. Add pairs of pages until the table has been placed completely. Output each table instance twice with an appropriate clipping rectangle applied to the "left" or the "right" part, respectively. Use the "rewind" option of fit_table() to rewind the table to the state before the fit_table() call used to place the first table instance. Otherwise the table instance could not be placed a second time.
In Acrobat, display the table as follows:
Disable "View, Page Display, Show Cover Page during Two-Up" if enabled.
Choose "View, Page Display, Two-Up" to display two pages next to each other.
Download Java Code Show Output PDF
* Spread oversized table:
* Output a table on 2 x m pages as it is needed to fit it completely.
*
* A table has a width which exceeds the width of the page. Therefore, output
* the table on a pair of pages with one page acting as the left and one page
* acting as the right page. Add pairs of pages until the table has been placed
* completely.
* Output each table instance twice with an appropriate clipping rectangle
* applied to the "left" or the "right" part, respectively. Use the "rewind"
* option of fit_table() to rewind the table to the state before the fit_table()
* call used to place the first table instance. Otherwise the table instance
* could not be placed a second time.
*
* In Acrobat, display the table as follows:
* Disable "View, Page Display, Show Cover Page during Two-Up" if enabled.
* Choose "View, Page Display, Two-Up" to display two pages next to each other.
*
* Required software: PDFlib/PDFlib+PDI/PPS 7
* Required data: none
*/
package com.pdflib.cookbook.pdflib.table;
import com.pdflib.pdflib;
import com.pdflib.PDFlibException;
public class spread_oversized_table
{
public static void main (String argv[])
{
/* This is where the data files are. Adjust as necessary. */
String searchpath = "../input";
String outfile = "spread_oversized_table.pdf";
String title = "Spread oversized Table";
pdflib p = null;
int font, tbl = -1;
int row, col;
final int pagewidth=421, pageheight=595;
/* Number of rows and columns contained in the table */
final int rowmax=50, colmax=10;
/* Inside, outside, upper and lower page margins */
final double inside=10, outside=50, top=20, bottom=20;
/* Table width and height */
final double tablewidth=2*(pagewidth-outside-inside);
final double tableheight=pageheight-bottom-top;
final double lly=bottom, ury=pageheight-top;
double llx, urx, widthright, widthleft;
double xmax = pagewidth-inside, xright = outside, x;
double xshift;
String headertext = "Table header (centered across all columns)";
String result, optlist;
int i;
try {
p = new pdflib();
p.set_parameter("SearchPath", searchpath);
/* This means we must check return values of load_font() etc. */
p.set_parameter("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 + " $Revision: 1.1.4.1 $");
/* -------------------
* Add the table cells
* -------------------
*/
/* In row 1 add the table header which spans all columns
*/
row = 1; col = 1;
font = p.load_font("Times-Bold", "unicode", "");
if (font == -1)
throw new Exception("Error: " + p.get_errmsg());
optlist = "fittextline={position=center font=" + font +
" fontsize=14} " + "margin=2 colspan=" + colmax;
tbl = p.add_table_cell(tbl, col, row, headertext, optlist);
if (tbl == -1)
throw new Exception("Error adding cell: " + p.get_errmsg());
/* In row 2 and above add the respective column and row numbers */
for (row++; row <= rowmax; row++) {
for (col = 1; col <= colmax; col++)
{
String num;
num = "Col " + col + "/Row " + row;
optlist = "fittextline={font=" + font + " fontsize=10} " +
"margin=2";
tbl = p.add_table_cell(tbl, col, row, num, optlist);
if (tbl == -1)
throw new Exception("Error adding cell: " +
p.get_errmsg());
}
}
/* Option list for fitting the table:
* define the first line as the header line;
* shade every other row; draw lines for all table cells
*/
optlist = "header=1 fill={{area=rowodd fillcolor={gray 0.9}}} " +
"stroke={{line=other}} ";
/* --------------------------------------------------------------------
* Check if the table width fits completely on the page or if the table
* width has to distributed over two pages, i.e. the left and the right
* page
* --------------------------------------------------------------------
*/
/* Place the first table instance over both pages in blind mode. All
* calculations will be done but the table will not actually be placed.
* Then, retrieve the number of the last column (i.e. the vertical line)
* which still fits on the "left" page.
*/
p.begin_page_ext(pagewidth, pageheight, "");
llx = outside;
urx = llx+tablewidth;
result = p.fit_table(tbl, llx, lly, urx, ury, optlist + "blind");
if (result.equals("_error") || result.equals("_boxempty"))
throw new Exception ("Couldn't place table: " + p.get_errmsg());
/* Query the x coordinate "xright" of the last column which fits in the
* fitbox on the "left" page
*/
for (i = 1; i <= colmax; i++)
{
/* Get the x coordinate of the vertical line with number #.
* "xvertline0" is the left table border.
*/
x = p.info_table(tbl, "xvertline" + i);
if (x > xmax) {
break;
}
xright = x;
}
/* -------------------------------------------------------------
* Place the first half of the table instance on the "left" page
* -------------------------------------------------------------
*/
/* Since the table will be clipped on the right the inner margin of the
* left page may be increased. Use the "xshift" value to shift the table
* to the right so that the inner margin will become the default value
* again.
*/
xshift = pagewidth - xright - inside;
/* Using the x coordinate of the last column fitting on the "left" page
* set the clipping rectangle for the first columns of the table which
* will be placed on the left page.
*/
llx = outside + xshift;
widthleft = xright - outside;
p.rect(llx, lly, widthleft, tableheight);
p.clip();
/* Place the table instance on the "left" page.
* Use the "rewind" option to rewind the table to the state before
* the last fit_table() call (which just happened in "blind" mode for
* calculation purposes).
* The table instance will be placed with the complete table width but
* it will be clipped according to the clipping rectangle to show only
* the first "xright" columns.
*/
llx = outside + xshift;
urx = llx + tablewidth;
result = p.fit_table(tbl, llx, lly, urx, ury, optlist + " rewind=-1");
if (result.equals("_error"))
throw new Exception ("Couldn't place table : " + p.get_errmsg());
p.end_page_ext("");
/* ---------------------------------------------------------------
* Place the second half of the table instance on the "right" page
* ---------------------------------------------------------------
*/
p.begin_page_ext(pagewidth, pageheight, "");
/* Set the clipping rectangle for all further columns of the table which
* will be placed on the "right" page
*/
llx = inside;
widthright = tablewidth-widthleft;
p.rect(llx, lly, widthright, tableheight);
p.clip();
/* Place the table instance again on the "right" page.
* Use the "rewind" option to rewind the table to the state before
* the last fit_table() call (which has been used to place the first
* table instance). Otherwise this instance could not be placed a second
* time.
* The fitbox of the table instance is shifted to the left "outside"
* the page so that the last columns can be shown on the page.
* The table instance will be placed with the complete table width but
* it will be clipped according to the clipping rectangle to show only
* the last columns.
*/
llx = llx-widthleft;
urx = inside+widthright;
result = p.fit_table(tbl, llx, lly, urx, ury, optlist + " rewind=-1");
if (result.equals("_error"))
throw new Exception ("Couldn't place table : " + p.get_errmsg());
p.end_page_ext("");
/* ---------------------------------------------------------------
* Place all further table instances on a left and right page each
* ---------------------------------------------------------------
*/
/* Loop until all of the table is placed; create new pages as long as
* more table instances need to be placed.
*/
while (result.equals("_boxfull"))
{
p.begin_page_ext(pagewidth, pageheight, "");
/* Set the clipping rectangle to place the first columns of the
* table on the left page
*/
llx = outside + xshift;
widthleft = xright-outside;
p.rect(llx, lly, widthleft, tableheight);
p.clip();
/* Place the table instance on the "left" page */
urx = llx+tablewidth;
result = p.fit_table(tbl, llx, lly, urx, ury, optlist);
if (result.equals("_error"))
throw new Exception ("Couldn't place table : " + p.get_errmsg());
p.end_page_ext("");
p.begin_page_ext(pagewidth, pageheight, "");
/* Set the clipping rectangle to place all further columns of the
* table on the right page
*/
llx = inside;
widthright = tablewidth-widthleft;
p.rect(llx, lly, widthright, tableheight);
p.clip();
/* Place the table instance again on the "right" page */
llx = llx-widthleft;
urx = inside+widthright;
result = p.fit_table(tbl, llx, lly, urx, ury,
optlist + " rewind=-1");
if (result.equals("_error"))
throw new Exception ("Couldn't place table : " + p.get_errmsg());
p.end_page_ext("");
}
/* Check the result; "_stop" means all is ok */
if (!result.equals("_stop")) {
if (result.equals( "_error"))
throw new Exception ("Error when placing table: " +
p.get_errmsg());
else
/* Any other return value is a user exit caused by the "return"
* option; this requires dedicated code to deal with.
*/
throw new Exception ("User return found in Textflow");
}
/* This will also delete Textflow handles used in the table */
p.delete_table(tbl, "");
p.end_document("");
} catch (PDFlibException e) {
System.err.print("PDFlib exception occurred:\n");
System.err.print("[" + e.get_errnum() + "] " + e.get_apiname() +
": " + e.get_errmsg() + "\n");
} catch (Exception e) {
System.err.println(e.toString());
} finally {
if (p != null) {
p.delete();
}
}
}
}