package com.pdflib.cookbook.pcos.resources; import com.pdflib.IpCOS; import com.pdflib.cookbook.pcos.pcos_cookbook_example; /** * Print information about all images in the document. *
* Required software: pCOS interface 3 (pCOS 3.x, PDFlib+PDI/PPS 7.x, TET 2.2,
* PLOP 3.x)
* Required data: PDF document
*
* @version $Id: images.java,v 1.11 2016/06/21 13:56:49 stm Exp $
*/
public class images extends pcos_cookbook_example {
/* This is where the data files are. Adjust as necessary. */
private final static String SEARCH_PATH = "../input";
public void example_code(IpCOS p, int doc) throws Exception {
System.out.println("File name: " + p.pcos_get_string(doc, "filename"));
int imagecount = (int) p.pcos_get_number(doc, "length:images");
System.out.println("Image count: " + imagecount);
for (int image = 0; image < imagecount; image += 1) {
System.out.print(" Image " + (image + 1) + ", ");
String objtype = p.pcos_get_string(doc, "type:images[" + image
+ "]/Filter");
if (objtype.equals("name")) {
String filter = p.pcos_get_string(doc, "images[" + image
+ "]/Filter");
System.out.print("Filter=" + filter);
}
else if (objtype.equals("array")) {
String filter = p.pcos_get_string(doc, "images[" + image
+ "]/Filter[0]");
System.out.print("Filter=" + filter);
int filtercount = (int) p.pcos_get_number(doc, "length:images["
+ image + "]/Filter");
for (int f = 1; f < filtercount; f++) {
filter = p.pcos_get_string(doc, "images[" + image
+ "]/Filter[" + f + "]");
System.out.print("+" + filter);
}
}
System.out.print(", "
+ (int) p.pcos_get_number(doc, "images[" + image + "]/Width")
+ "x"
+ (int) p.pcos_get_number(doc, "images[" + image + "]/Height")
+ ", ");
System.out.print(
(int) p.pcos_get_number(doc, "images[" + image + "]/bpc")
+ " bits per component, ");
check_colorspace(p, doc, image);
System.out.println();
}
}
private static void check_colorspace(IpCOS p, int doc, int image)
throws Exception {
String objtype = p.pcos_get_string(doc, "type:images[" + image
+ "]/ColorSpace");
if (objtype.equals("name")) {
System.out.print(p.pcos_get_string(doc, "images[" + image
+ "]/ColorSpace"));
}
else if (objtype.equals("array")) {
String cs = p.pcos_get_string(doc, "images[" + image
+ "]/ColorSpace[0]");
System.out.print(cs);
if (cs.equals("Indexed")) {
/* Print information about base colorspace */
String basepath = "images[" + image + "]/ColorSpace[1]";
objtype = p.pcos_get_string(doc, "type:" + basepath);
if (objtype.equals("name")) {
System.out.print(" " + p.pcos_get_string(doc, basepath));
}
else {
System.out.print(" (complex base color space)");
}
}
else if (cs.equals("Separation")) {
/* Print information about alternate colorspace */
String altpath = "images[" + image + "]/ColorSpace[1]";
objtype = p.pcos_get_string(doc, "type:" + altpath);
if (objtype.equals("name")) {
System.out.print(" " + p.pcos_get_string(doc, altpath));
}
else {
System.out.print(" (complex alternate color space)");
}
}
}
else if (objtype.equals("null")) {
System.out.print("ImageMask");
}
else {
/*
* Look at colorspaces.java for code that dissects
* color spaces in full detail.
*/
System.out.print("(complex color space)");
}
}
public images(String[] argv, String readable_name, String search_path,
String full_rcs_file_name, String revision) {
super(argv, readable_name, search_path, full_rcs_file_name, revision);
}
public static void main(String argv[]) {
images example = new images(argv, "Image XObjects", SEARCH_PATH,
"$RCSfile: images.java,v $", "$Revision: 1.11 $");
example.execute();
}
}