/* * Fill polygons with text: * Define arbitrary polygons to be filled with text * * Use fit_textflow() with the "wrap" option and the "addfitbox" and "polygons" * suboptions to define a rhombus to be filled with text. Then define a hexagon * and a rectangle positioned within the hexagon. In this case the overlapping * area will be left blank when fitting the text using the options above. * * Required software: PDFlib/PDFlib+PDI/PPS 9 * Required data: none */ package com.pdflib.cookbook.pdflib.textflow; import com.pdflib.pdflib; import com.pdflib.PDFlibException; public class fill_polygons_with_text { public static void main (String argv[]) { pdflib p = null; int exitcode = 0; String searchpath = "../input"; String outfile = "fill_polygons_with_text.pdf"; String title = "Fill Polygons with Text"; int i, font, tf = -1; String result; final double llx = 50, lly = 200, urx = 450, ury = 700; final String textopts = "fontname=Helvetica fontsize=10.5 encoding=unicode " + "fillcolor={gray 0} alignment=justify charref"; /* Text which is placed on the page. Soft hyphens are marked with the * character reference "­" (character references are enabled by the * charref option). */ final String text = "Our paper planes are the ideal way of passing the time. We offer " + "revolutionary new develop­ments of the traditional common paper " + "planes. If your lesson, conference, or lecture turn out to be " + "deadly boring, you can have a wonderful time with our planes. " + "All our models are fol­ded from one paper sheet. They are " + "exclu­sively folded with­out using any adhesive. Several " + "models are equipped with a folded landing gear enabling a safe " + "landing on the intended loca­tion provided that you have aimed " + "well. Other models are able to fly loops or cover long distances. " + "Let them start from a vista point in the mountains and see " + "where they touch the ground. "; 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"); p.set_option("charref=true"); 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 */ font = p.load_font("Helvetica-Bold", "unicode", ""); if (font == -1) throw new Exception("Error: " + p.get_errmsg()); /* ------------------------ * Fill a rhombus with text * ------------------------ */ p.begin_page_ext(0, 0, "width=a4.width height=a4.height"); /* Create a heading */ p.setfont(font, 11); p.fit_textline("Page 1:", llx, ury+60, "fillcolor={rgb 0 0 1}"); p.fit_textline("fit_textflow() with option", llx, ury+40, "fillcolor={rgb 0 0 1}"); p.fit_textline("wrap={addfitbox polygons={{50% 80% 20% 50% " + "50% 20% 80% 50% 50% 80%}}}", llx, ury+20, "fillcolor={rgb 0 0 1}"); /* Create some text and feed it to a Textflow object */ tf = p.add_textflow(tf, text, textopts); if (tf == -1) throw new Exception("Error: " + p.get_errmsg()); /* Place the text. Use the "wrap" option with the "addfitbox" and * "polygons" suboptions to add a rhombus to the area being filled. * In this case, each corner of the rhombus is specified by a pair * of coordinates defined as percentage of the fitbox width or * height, respectively. * "showborder" is used to illustrate the fitbox borders. */ result = p.fit_textflow(tf, llx, lly, urx, ury, "verticalalign=justify linespreadlimit=120% showborder " + "wrap={ addfitbox polygons={" + "{50% 80% 20% 50% 50% 20% 80% 50% 50% 80%} } }"); /* Check for errors */ if (!result.equals("_stop")) { /* "_boxempty" happens if the box is very small and doesn't * hold any text at all. */ if (result.equals( "_boxempty")) throw new Exception ("Error: Textflow box too small"); 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 '" + result + "' found in Textflow"); } } p.delete_textflow(tf); p.end_page_ext(""); /* ------------------------------------------------------------------ * Fill two overlapping shapes with text. * In this case, the first shape will be filled while the area of the * second shape overlapping with the first shape will be left blank. * ------------------------------------------------------------------ */ tf = -1; p.begin_page_ext(0, 0, "width=a4.width height=a4.height"); /* Create a heading */ p.setfont(font, 11); p.fit_textline("Page 2:", llx, ury+80, "fillcolor={rgb 0 0 1}"); p.fit_textline("fit_textflow() with option wrap={addfitbox polygons={", llx, ury+60, "fillcolor={rgb 0 0 1}"); p.fit_textline("{20% 10% 80% 10% 100% 50% 80% 90% 20% 90% " + "0% 50% 20% 10%}", llx, ury+40, "fillcolor={rgb 0 0 1}"); p.fit_textline("{35% 35% 65% 35% 65% 65% 35% 65% 35% 35%}}}", llx, ury+20, "fillcolor={rgb 0 0 1}"); /* Create some text and feed it to a Textflow object */ for (i = 0; i < 3; i++) { tf = p.add_textflow(tf, text, textopts); if (tf == -1) throw new Exception("Error: " + p.get_errmsg()); } /* Place the text. Use the "wrap" option with the "addfitbox" and * "polygons" suboptions to add a hexagon to the area being filled and * a rectangle to the area being left empty. Each corner is specified by * a pair of coordinates defined as percentage of the fitbox width or * height, respectively. * "showborder" is used to illustrate the fitbox borders. */ result = p.fit_textflow(tf, llx, lly, urx, ury, "verticalalign=justify linespreadlimit=120% showborder " + "wrap={ addfitbox polygons={" + "{20% 10% 80% 10% 100% 50% 80% 90% 20% 90% 0% 50% 20% 10%} " + "{35% 35% 65% 35% 65% 65% 35% 65% 35% 35%} } }"); p.end_page_ext(""); p.end_document(""); } catch (PDFlibException e) { System.err.println("PDFlib exception occurred:"); System.err.println("[" + e.get_errnum() + "] " + e.get_apiname() + ": " + e.get_errmsg()); exitcode = 1; } catch (Exception e) { System.err.println(e); exitcode = 1; } finally { if (p != null) { p.delete(); } System.exit(exitcode); } } }