Plugin system for backends. Fixes bug #351348.

[evince.git] / backend / dvi / dvi-document.c

diff --git a/backend/dvi/dvi-document.c b/backend/dvi/dvi-document.c
index c85e4f5a70d712953e5f782f7f4e490106929e3d..56a0d9231d3f214f1c40cc2c9dfc13a5044458bd 100644 (file)
--- a/backend/dvi/dvi-document.c
+++ b/backend/dvi/dvi-document.c
@@ -17,6 +17,8 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
+#include "config.h"
+
 #include "dvi-document.h"
 #include "ev-document-thumbnails.h"
 #include "ev-document-misc.h"
@@ -26,7 +28,6 @@
 #include "fonts.h"
 #include "cairo-device.h"
 
-#include <gtk/gtk.h>
 #include <glib/gi18n.h>
 
 GMutex *dvi_context_mutex = NULL;
@@ -73,10 +74,8 @@ static void dvi_document_do_color_special               (DviContext
                                                         const char                *prefix,
                                                         const char                *arg);
 
-G_DEFINE_TYPE_WITH_CODE 
-    (DviDocument, dvi_document, G_TYPE_OBJECT, 
-    {
-      G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT, dvi_document_document_iface_init);    
+EV_BACKEND_REGISTER_WITH_CODE (DviDocument, dvi_document,
+     {
       G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS, dvi_document_document_thumbnails_iface_init);
       G_IMPLEMENT_INTERFACE (EV_TYPE_FILE_EXPORTER, dvi_document_file_exporter_iface_init);
      });
@@ -250,12 +249,6 @@ dvi_document_class_init (DviDocumentClass *klass)
        dvi_context_mutex = g_mutex_new ();
 }
 
-static gboolean
-dvi_document_can_get_text (EvDocument *document)
-{
-       return FALSE;
-}
-
 static EvDocumentInfo *
 dvi_document_get_info (EvDocument *document)
 {
@@ -271,7 +264,6 @@ dvi_document_document_iface_init (EvDocumentIface *iface)
 {
        iface->load = dvi_document_load;
        iface->save = dvi_document_save;
-       iface->can_get_text = dvi_document_can_get_text;
        iface->get_n_pages = dvi_document_get_n_pages;
        iface->get_page_size = dvi_document_get_page_size;
        iface->render = dvi_document_render;
@@ -362,28 +354,15 @@ dvi_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
 }
 
 /* EvFileExporterIface */
-static gboolean
-dvi_document_file_exporter_format_supported (EvFileExporter      *exporter,
-                                              EvFileExporterFormat format)
-{
-        return (format == EV_FILE_FORMAT_PDF); /* only exporting to PDF is implemented. */
-}
-
 static void
-dvi_document_file_exporter_begin (EvFileExporter      *exporter,
-                                  EvFileExporterFormat format,
-                                  const char          *filename, /* for storing the temp pdf file */
-                                  int                  first_page,
-                                  int                  last_page,
-                                  double               width,
-                                  double               height,
-                                  gboolean             duplex)
+dvi_document_file_exporter_begin (EvFileExporter        *exporter,
+                                 EvFileExporterContext *fc)
 {
        DviDocument *dvi_document = DVI_DOCUMENT(exporter);
        
        if (dvi_document->exporter_filename)
                g_free (dvi_document->exporter_filename);       
-       dvi_document->exporter_filename = g_strdup(filename);
+       dvi_document->exporter_filename = g_strdup(fc->filename);
        
        if (dvi_document->exporter_opts) {
                g_string_free (dvi_document->exporter_opts, TRUE);
@@ -392,7 +371,8 @@ dvi_document_file_exporter_begin (EvFileExporter      *exporter,
 }
 
 static void
-dvi_document_file_exporter_do_page (EvFileExporter *exporter, EvRenderContext *rc)
+dvi_document_file_exporter_do_page (EvFileExporter  *exporter,
+                                   EvRenderContext *rc)
 {
        DviDocument *dvi_document = DVI_DOCUMENT(exporter);
 
@@ -423,22 +403,32 @@ dvi_document_file_exporter_end (EvFileExporter *exporter)
        g_free(command_line);
 
        if (success == FALSE) {
-               g_warning (_("Error: %s"), err->message);
+               g_warning ("Error: %s", err->message);
        } else if (exit_stat != 0) {
-               g_warning (_("Error: dvipdfm exited with non-zero status."));
+               g_warning ("Error: dvipdfm exited with non-zero status.");
        }
 
        if (err)
                g_error_free(err);
 }
 
+static EvFileExporterCapabilities
+dvi_document_file_exporter_get_capabilities (EvFileExporter *exporter)
+{
+       return  EV_FILE_EXPORTER_CAN_PAGE_SET |
+               EV_FILE_EXPORTER_CAN_COPIES |
+               EV_FILE_EXPORTER_CAN_COLLATE |
+               EV_FILE_EXPORTER_CAN_REVERSE |
+               EV_FILE_EXPORTER_CAN_GENERATE_PDF;
+}
+
 static void
 dvi_document_file_exporter_iface_init (EvFileExporterIface *iface)
 {
-        iface->format_supported = dvi_document_file_exporter_format_supported;
         iface->begin = dvi_document_file_exporter_begin;
         iface->do_page = dvi_document_file_exporter_do_page;
         iface->end = dvi_document_file_exporter_end;
+       iface->get_capabilities = dvi_document_file_exporter_get_capabilities;
 }
 
 #define RGB2ULONG(r,g,b) ((0xFF<<24)|(r<<16)|(g<<8)|(b))