cairo output works again

[pspp] / src / output / page-setup-item.c

diff --git a/src/output/page-setup-item.c b/src/output/page-setup-item.c
index b4f8e4c4caead1e887c2bf891f30e4dcf2a04bd7..45cf8c977f0d8c48456e67c6ebb9c678e2da35a6 100644 (file)
--- a/src/output/page-setup-item.c
+++ b/src/output/page-setup-item.c
@@ -25,6 +25,15 @@
 
 #include "gl/xalloc.h"
 
+bool
+page_paragraph_equals (const struct page_paragraph *a,
+                       const struct page_paragraph *b)
+{
+  return (!a || !b ? a == b
+          : !a->markup || !b->markup ? a->markup == b->markup
+          : !strcmp (a->markup, b->markup) && a->halign == b->halign);
+}
+
 void
 page_heading_copy (struct page_heading *dst, const struct page_heading *src)
 {
@@ -48,6 +57,23 @@ page_heading_uninit (struct page_heading *ph)
   free (ph->paragraphs);
 }
 
+bool
+page_heading_equals (const struct page_heading *a,
+                     const struct page_heading *b)
+{
+  if (!a || !b)
+    return a == b;
+
+  if (a->n != b->n)
+    return false;
+
+  for (size_t i = 0; i < a->n; i++)
+    if (!page_paragraph_equals (&a->paragraphs[i], &b->paragraphs[i]))
+      return false;
+
+  return true;
+}
+
 struct page_setup *
 page_setup_clone (const struct page_setup *old)
 {