Plugin system for backends. Fixes bug #351348.

[evince.git] / backend / pdf / ev-poppler.cc

diff --git a/backend/pdf/ev-poppler.cc b/backend/pdf/ev-poppler.cc
index 9ccfd22291411ec758843263d5fd8490d49136f1..5b0398047c458ec8e84f286739270951c9b20a58 100644 (file)
--- a/backend/pdf/ev-poppler.cc
+++ b/backend/pdf/ev-poppler.cc
@@ -48,7 +48,7 @@
 #include "ev-attachment.h"
 #include "ev-image.h"
 
-#if defined (HAVE_CAIRO_PDF) || defined (HAVE_CAIRO_PS)
+#if (defined (HAVE_POPPLER_PAGE_RENDER) || defined (HAVE_POPPLER_PAGE_RENDER_FOR_PRINTING)) && (defined (HAVE_CAIRO_PDF) || defined (HAVE_CAIRO_PS))
 #define HAVE_CAIRO_PRINT
 #endif
 
@@ -123,10 +123,8 @@ static EvLink     *ev_link_from_action      (PdfDocument       *pdf_document,
 static void        pdf_document_search_free (PdfDocumentSearch *search);
 static void        pdf_print_context_free   (PdfPrintContext   *ctx);
 
-G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
-                         {
-                                G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
-                                                       pdf_document_document_iface_init);
+EV_BACKEND_REGISTER_WITH_CODE (PdfDocument, pdf_document,
+                        {
                                 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_SECURITY,
                                                        pdf_document_security_iface_init);
                                 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
@@ -859,7 +857,10 @@ ev_link_dest_from_dest (PdfDocument *pdf_document,
                        ev_dest = ev_link_dest_new_xyz (dest->page_num - 1,
                                                        dest->left,
                                                        height - dest->top,
-                                                       dest->zoom);
+                                                       dest->zoom,
+                                                       dest->change_left,
+                                                       dest->change_top,
+                                                       dest->change_zoom);
                        g_object_unref (poppler_page);
                }
                        break;
@@ -874,13 +875,15 @@ ev_link_dest_from_dest (PdfDocument *pdf_document,
                                                                  MAX (0, dest->page_num - 1));
                        poppler_page_get_size (poppler_page, NULL, &height);
                        ev_dest = ev_link_dest_new_fith (dest->page_num - 1,
-                                                        height - dest->top);
+                                                        height - dest->top,
+                                                        dest->change_top);
                        g_object_unref (poppler_page);
                }
                        break;
                case POPPLER_DEST_FITV:
                        ev_dest = ev_link_dest_new_fitv (dest->page_num - 1,
-                                                        dest->left);
+                                                        dest->left,
+                                                        dest->change_left);
                        break;
                case POPPLER_DEST_FITR: {
                        PopplerPage *poppler_page;
@@ -1520,8 +1523,8 @@ pdf_document_file_exporter_begin (EvFileExporter        *exporter,
 {
        PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
        PdfPrintContext *ctx;
-       gdouble width, height;
 #ifdef HAVE_CAIRO_PRINT
+       gdouble width, height;
        cairo_surface_t *surface = NULL;
 #endif
        
@@ -1530,7 +1533,9 @@ pdf_document_file_exporter_begin (EvFileExporter        *exporter,
        pdf_document->print_ctx = g_new0 (PdfPrintContext, 1);
        ctx = pdf_document->print_ctx;
        ctx->format = fc->format;
-       ctx->pages_per_sheet = fc->pages_per_sheet;
+       
+#ifdef HAVE_CAIRO_PRINT
+       ctx->pages_per_sheet = CLAMP (fc->pages_per_sheet, 1, 16);
 
        ctx->paper_width = fc->paper_width;
        ctx->paper_height = fc->paper_height;
@@ -1564,18 +1569,12 @@ pdf_document_file_exporter_begin (EvFileExporter        *exporter,
        }
 
        ctx->pages_printed = 0;
-
+       
        switch (fc->format) {
                case EV_FILE_FORMAT_PS:
 #ifdef HAVE_CAIRO_PS
                        surface = cairo_ps_surface_create (fc->filename, fc->paper_width, fc->paper_height);
-#else
-                       ctx->ps_file = poppler_ps_file_new (pdf_document->document,
-                                                           fc->filename, fc->first_page,
-                                                           fc->last_page - fc->first_page + 1);
-                       poppler_ps_file_set_paper_size (ctx->ps_file, fc->paper_width, fc->paper_height);
-                       poppler_ps_file_set_duplex (ctx->ps_file, fc->duplex);
-#endif /* HAVE_CAIRO_PS */
+#endif
                        break;
                case EV_FILE_FORMAT_PDF:
 #ifdef HAVE_CAIRO_PDF
@@ -1586,10 +1585,43 @@ pdf_document_file_exporter_begin (EvFileExporter        *exporter,
                        g_assert_not_reached ();
        }
 
-#ifdef HAVE_CAIRO_PRINT
        ctx->cr = cairo_create (surface);
        cairo_surface_destroy (surface);
-#endif
+
+#else /* HAVE_CAIRO_PRINT */
+       if (ctx->format == EV_FILE_FORMAT_PS) {
+               ctx->ps_file = poppler_ps_file_new (pdf_document->document,
+                                                   fc->filename, fc->first_page,
+                                                   fc->last_page - fc->first_page + 1);
+               poppler_ps_file_set_paper_size (ctx->ps_file, fc->paper_width, fc->paper_height);
+               poppler_ps_file_set_duplex (ctx->ps_file, fc->duplex);
+       }
+#endif /* HAVE_CAIRO_PRINT */
+}
+
+static void
+pdf_document_file_exporter_begin_page (EvFileExporter *exporter)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
+       PdfPrintContext *ctx = pdf_document->print_ctx;
+       
+       g_return_if_fail (pdf_document->print_ctx != NULL);
+
+       ctx->pages_printed = 0;
+       
+#ifdef HAVE_CAIRO_PRINT
+       if (ctx->paper_width > ctx->paper_height) {
+               if (ctx->format == EV_FILE_FORMAT_PS) {
+                       cairo_ps_surface_set_size (cairo_get_target (ctx->cr),
+                                                  ctx->paper_height,
+                                                  ctx->paper_width);
+               } else if (ctx->format == EV_FILE_FORMAT_PDF) {
+                       cairo_pdf_surface_set_size (cairo_get_target (ctx->cr),
+                                                   ctx->paper_height,
+                                                   ctx->paper_width);
+               }
+       }
+#endif /* HAVE_CAIRO_PRINT */
 }
 
 static void
@@ -1630,9 +1662,6 @@ pdf_document_file_exporter_do_page (EvFileExporter  *exporter,
                width = ctx->paper_height;
                height = ctx->paper_width;
                rotate = !rotate;
-
-               cairo_ps_surface_set_size (cairo_get_target (ctx->cr),
-                                          width, height);
        } else {
                width = ctx->paper_width;
                height = ctx->paper_height;
@@ -1653,7 +1682,6 @@ pdf_document_file_exporter_do_page (EvFileExporter  *exporter,
                tmp2 = page_width;
                page_width = page_height;
                page_height = tmp2;
-
        }
 
        pwidth = width / ctx->pages_x;
@@ -1703,9 +1731,6 @@ pdf_document_file_exporter_do_page (EvFileExporter  *exporter,
 
        ctx->pages_printed++;
                        
-       if (ctx->pages_printed % ctx->pages_per_sheet == 0) {
-               cairo_show_page (ctx->cr);
-       }
        cairo_restore (ctx->cr);
 #else /* HAVE_CAIRO_PRINT */
        if (ctx->format == EV_FILE_FORMAT_PS)
@@ -1715,6 +1740,19 @@ pdf_document_file_exporter_do_page (EvFileExporter  *exporter,
        g_object_unref (poppler_page);
 }
 
+static void
+pdf_document_file_exporter_end_page (EvFileExporter *exporter)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
+       PdfPrintContext *ctx = pdf_document->print_ctx;
+       
+       g_return_if_fail (pdf_document->print_ctx != NULL);
+
+#ifdef HAVE_CAIRO_PRINT
+       cairo_show_page (ctx->cr);
+#endif
+}
+
 static void
 pdf_document_file_exporter_end (EvFileExporter *exporter)
 {
@@ -1753,7 +1791,9 @@ static void
 pdf_document_file_exporter_iface_init (EvFileExporterIface *iface)
 {
         iface->begin = pdf_document_file_exporter_begin;
+       iface->begin_page = pdf_document_file_exporter_begin_page;
         iface->do_page = pdf_document_file_exporter_do_page;
+       iface->end_page = pdf_document_file_exporter_end_page;
         iface->end = pdf_document_file_exporter_end;
        iface->get_capabilities = pdf_document_file_exporter_get_capabilities;
 }
@@ -1933,12 +1973,6 @@ pdf_document_page_transition_iface_init (EvDocumentTransitionIface *iface)
        iface->get_page_duration = pdf_document_get_page_duration;
 }
 
-PdfDocument *
-pdf_document_new (void)
-{
-       return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL));
-}
-
 /* Forms */
 static void
 pdf_document_get_crop_box (EvDocument  *document,