Update C API with new QPDFWriter methods

ChangeLog

@@ -1,3 +1,12 @@
+2017-09-12  Jay Berkenbilt  <ejb@ql.org>
+
+	* Add new methods to the C API to correspond to new additions to
+	QPDFWriter:
+	- qpdf_set_compress_streams
+	- qpdf_set_decode_level
+	- qpdf_set_preserve_unreferenced_objects
+	- qpdf_set_newline_before_endstream
+
 2017-08-25  Jay Berkenbilt  <ejb@ql.org>
 
 	* Re-implement parser iteratively to avoid stack overflow on very

TODO

@@ -1,8 +1,6 @@
 Before final 7.0.0
 ==================
 
- * Update C API
-
  * Create release notes
 
  * See if the error message that gets generated when retrying a stream

include/qpdf/qpdf-c.h

@@ -318,6 +318,21 @@ extern "C" {
     void qpdf_set_stream_data_mode(qpdf_data qpdf,
 				   enum qpdf_stream_data_e mode);
 
+    QPDF_DLL
+    void qpdf_set_compress_streams(qpdf_data qpdf, QPDF_BOOL value);
+
+
+    QPDF_DLL
+    void qpdf_set_decode_level(qpdf_data qpdf,
+                               enum qpdf_stream_decode_level_e level);
+
+    QPDF_DLL
+    void qpdf_set_preserve_unreferenced_objects(
+        qpdf_data qpdf, QPDF_BOOL value);
+
+    QPDF_DLL
+    void qpdf_set_newline_before_endstream(qpdf_data qpdf, QPDF_BOOL value);
+
     QPDF_DLL
     void qpdf_set_content_normalization(qpdf_data qpdf, QPDF_BOOL value);
 

libqpdf/qpdf-c.cc

@@ -502,6 +502,30 @@ void qpdf_set_object_stream_mode(qpdf_data qpdf, qpdf_object_stream_e mode)
     qpdf->qpdf_writer->setObjectStreamMode(mode);
 }
 
+void qpdf_set_compress_streams(qpdf_data qpdf, QPDF_BOOL value)
+{
+    QTC::TC("qpdf", "qpdf-c called qpdf_set_compress_streams");
+    qpdf->qpdf_writer->setCompressStreams(value);
+}
+
+void qpdf_set_decode_level(qpdf_data qpdf, qpdf_stream_decode_level_e level)
+{
+    QTC::TC("qpdf", "qpdf-c called qpdf_set_decode_level");
+    qpdf->qpdf_writer->setDecodeLevel(level);
+}
+
+void qpdf_set_preserve_unreferenced_objects(qpdf_data qpdf, QPDF_BOOL value)
+{
+    QTC::TC("qpdf", "qpdf-c called qpdf_set_preserve_unreferenced_objects");
+    qpdf->qpdf_writer->setPreserveUnreferencedObjects(value);
+}
+
+void qpdf_set_newline_before_endstream(qpdf_data qpdf, QPDF_BOOL value)
+{
+    QTC::TC("qpdf", "qpdf-c called qpdf_set_newline_before_endstream");
+    qpdf->qpdf_writer->setNewlineBeforeEndstream(value);
+}
+
 void qpdf_set_stream_data_mode(qpdf_data qpdf, qpdf_stream_data_e mode)
 {
     QTC::TC("qpdf", "qpdf-c called qpdf_set_stream_data_mode");

qpdf/qpdf-ctest.c

@@ -440,6 +440,50 @@ static void test19(char const* infile,
     report_errors();
 }
 
+static void test20(char const* infile,
+		   char const* password,
+		   char const* outfile,
+		   char const* outfile2)
+{
+    qpdf_read(qpdf, infile, password);
+    qpdf_init_write(qpdf, outfile);
+    qpdf_set_static_ID(qpdf, QPDF_TRUE);
+    qpdf_set_static_aes_IV(qpdf, QPDF_TRUE);
+    qpdf_set_compress_streams(qpdf, QPDF_FALSE);
+    qpdf_set_decode_level(qpdf, qpdf_dl_specialized);
+    qpdf_write(qpdf);
+    report_errors();
+}
+
+static void test21(char const* infile,
+		   char const* password,
+		   char const* outfile,
+		   char const* outfile2)
+{
+    qpdf_read(qpdf, infile, password);
+    qpdf_init_write(qpdf, outfile);
+    qpdf_set_static_ID(qpdf, QPDF_TRUE);
+    qpdf_set_static_aes_IV(qpdf, QPDF_TRUE);
+    qpdf_set_preserve_unreferenced_objects(qpdf, QPDF_TRUE);
+    qpdf_write(qpdf);
+    report_errors();
+}
+
+static void test22(char const* infile,
+		   char const* password,
+		   char const* outfile,
+		   char const* outfile2)
+{
+    qpdf_read(qpdf, infile, password);
+    qpdf_init_write(qpdf, outfile);
+    qpdf_set_static_ID(qpdf, QPDF_TRUE);
+    qpdf_set_static_aes_IV(qpdf, QPDF_TRUE);
+    qpdf_set_compress_streams(qpdf, QPDF_FALSE);
+    qpdf_set_newline_before_endstream(qpdf, QPDF_TRUE);
+    qpdf_write(qpdf);
+    report_errors();
+}
+
 int main(int argc, char* argv[])
 {
     char* p = 0;
@@ -499,6 +543,9 @@ int main(int argc, char* argv[])
 	  (n == 17) ? test17 :
 	  (n == 18) ? test18 :
 	  (n == 19) ? test19 :
+	  (n == 20) ? test20 :
+	  (n == 21) ? test21 :
+	  (n == 22) ? test22 :
 	  0);
 
     if (fn == 0)

qpdf/qpdf.testcov

@@ -297,3 +297,7 @@ QPDFWriter ignore self-referential object stream 0
 QPDFObjectHandle found old angle 1
 QPDF_Stream special filters 3
 QPDFTokenizer block long token 0
+qpdf-c called qpdf_set_decode_level 0
+qpdf-c called qpdf_set_compress_streams 0
+qpdf-c called qpdf_set_preserve_unreferenced_objects 0
+qpdf-c called qpdf_set_newline_before_endstream 0

qpdf/qtest/qpdf.test

@@ -687,7 +687,7 @@ $td->runtest("short /O or /U",
 show_ntests();
 # ----------
 $td->notify("--- Newline before endstream ---");
-$n_tests += 8;
+$n_tests += 10;
 
 # From issue 133, http://verapdf.org/software/ is an open source
 # package that can verify PDF/A compliance. This could potentially be
@@ -716,6 +716,16 @@ foreach my $d (
                      {$td->FILE => "a.pdf", $td->EXIT_STATUS => 0});
     }
 }
+
+$td->runtest("newline before endstream (C)",
+             {$td->COMMAND =>
+                  "qpdf-ctest 22 streams-with-newlines.pdf '' a.pdf"},
+             {$td->STRING => "", $td->EXIT_STATUS => 0},
+             $td->NORMALIZE_NEWLINES);
+$td->runtest("check output",
+             {$td->FILE => "a.pdf"},
+             {$td->FILE => "newline-before-endstream-nl.pdf"});
+
 show_ntests();
 # ----------
 $td->notify("--- Split Pages ---");
@@ -949,7 +959,7 @@ $td->runtest("check output",
 show_ntests();
 # ----------
 $td->notify("--- Decode levels ---");
-$n_tests += 12;
+$n_tests += 14;
 
 # image-streams.pdf is the output of examples/pdf-create.
 # examples/pdf-create validates the actual image data.
@@ -967,6 +977,17 @@ foreach my $l (qw(none generalized specialized all))
                  $td->NORMALIZE_NEWLINES);
 }
 
+# C API
+$td->runtest("image-streams: C",
+             {$td->COMMAND => "qpdf-ctest 20 image-streams.pdf '' a.pdf"},
+             {$td->STRING => "", $td->EXIT_STATUS => 0},
+             $td->NORMALIZE_NEWLINES);
+$td->runtest("check image-streams: C",
+             {$td->COMMAND => "test_driver 39 a.pdf"},
+             {$td->FILE => "image-streams-specialized.out",
+              $td->EXIT_STATUS => 0},
+             $td->NORMALIZE_NEWLINES);
+
 # Bad JPEG data
 $td->runtest("check finds bad jpeg data",
              {$td->COMMAND => "qpdf --check bad-jpeg.pdf"},
@@ -990,7 +1011,7 @@ $td->runtest("get data",
 show_ntests();
 # ----------
 $td->notify("--- Preserve unreferenced objects ---");
-$n_tests += 4;
+$n_tests += 6;
 
 $td->runtest("drop unused objects",
 	     {$td->COMMAND => "qpdf --static-id unreferenced-objects.pdf a.pdf"},
@@ -1005,6 +1026,13 @@ $td->runtest("keep unused objects",
 $td->runtest("check output",
 	     {$td->FILE => "a.pdf"},
 	     {$td->FILE => "unreferenced-preserved.pdf"});
+$td->runtest("keep unused objects (C)",
+	     {$td->COMMAND =>
+                  "qpdf-ctest 21 unreferenced-objects.pdf '' a.pdf"},
+	     {$td->STRING => "", $td->EXIT_STATUS => 0});
+$td->runtest("check output",
+	     {$td->FILE => "a.pdf"},
+	     {$td->FILE => "unreferenced-preserved.pdf"});
 show_ntests();
 # ----------
 $td->notify("--- Copy Foreign Objects ---");