First steps towards supporting transitions.

Only Fade, Wipe and Blinds supported so far.

Hit 'p' in the viewer to go into 'presentation' mode. Page swaps
then transition from page to page. Pages auto advance until key
or mouse is used.

1 files changed, 11 insertions, 0 deletions

diff --git a/pdf/pdf_xref.c b/pdf/pdf_xref.c
index 2b2a7f91..c78a9ec7 100644
--- a/pdf/pdf_xref.c
+++ b/pdf/pdf_xref.c
@@ -1252,6 +1252,16 @@ pdf_meta(pdf_document *doc, int key, void *ptr, int size)
 	}
 }
 
+fz_transition *
+pdf_page_presentation(pdf_document *doc, pdf_page *page, float *duration)
+{
+	*duration = page->duration;
+	if (!page->transition_present)
+		return NULL;
+	return &page->transition;
+}
+
+
 static fz_interactive *
 pdf_interact(pdf_document *doc)
 {
@@ -1287,6 +1297,7 @@ pdf_new_document(fz_context *ctx, fz_stream *file)
 	doc->super.run_page = NULL; /* see pdf_xref_aux.c */
 	doc->super.free_page = (void*)pdf_free_page;
 	doc->super.meta = (void*)pdf_meta;
+	doc->super.page_presentation = (void*)pdf_page_presentation;
 	doc->super.interact = (void*)pdf_interact;
 	doc->super.write = (void*)pdf_write_document;