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

diff --git a/backend/dvi/dvi-document.c b/backend/dvi/dvi-document.c
index 56d8bbb84aa7facd1553671528934244e4626676..c8295232a3aaaa5b8481b6d4ba120bce58f2e1d6 100644 (file)
--- a/backend/dvi/dvi-document.c
+++ b/backend/dvi/dvi-document.c
@@ -17,15 +17,18 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 

+#include "config.h"
+
+#include <config.h>

 #include "dvi-document.h"
 #include "ev-document-thumbnails.h"
 #include "ev-document-misc.h"
 #include "dvi-document.h"
 #include "ev-document-thumbnails.h"
 #include "ev-document-misc.h"

+#include "ev-file-exporter.h"

 
 #include "mdvi.h"
 #include "fonts.h"
 #include "cairo-device.h"
 
 
 #include "mdvi.h"
 #include "fonts.h"
 #include "cairo-device.h"
 

-#include <gtk/gtk.h>

 #include <glib/gi18n.h>
 
 GMutex *dvi_context_mutex = NULL;
 #include <glib/gi18n.h>
 
 GMutex *dvi_context_mutex = NULL;


@@ -53,12 +56,17 @@ struct _DviDocument
        double base_height;
        
        gchar *uri;
        double base_height;
        
        gchar *uri;

+
+       /* PDF exporter */
+       gchar            *exporter_filename;
+       GString          *exporter_opts;

 };
 
 typedef struct _DviDocumentClass DviDocumentClass;
 
 static void dvi_document_document_iface_init            (EvDocumentIface           *iface);
 static void dvi_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
 };
 
 typedef struct _DviDocumentClass DviDocumentClass;
 
 static void dvi_document_document_iface_init            (EvDocumentIface           *iface);
 static void dvi_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);

+static void dvi_document_file_exporter_iface_init      (EvFileExporterIface       *iface);

 static void dvi_document_get_page_size                         (EvDocument                *document,
                                                         int                        page,
                                                         double                    *width,
 static void dvi_document_get_page_size                         (EvDocument                *document,
                                                         int                        page,
                                                         double                    *width,


@@ -67,11 +75,10 @@ static void dvi_document_do_color_special               (DviContext
                                                         const char                *prefix,
                                                         const char                *arg);
 
                                                         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);    
-      G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS, dvi_document_document_thumbnails_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);

      });
 
 static gboolean
      });
 
 static gboolean


@@ -217,6 +224,12 @@ dvi_document_finalize (GObject *object)
        if (dvi_document->params)
                g_free (dvi_document->params);
 
        if (dvi_document->params)
                g_free (dvi_document->params);
 

+       if (dvi_document->exporter_filename)
+               g_free (dvi_document->exporter_filename);
+       
+       if (dvi_document->exporter_opts)
+               g_string_free (dvi_document->exporter_opts, TRUE);
+

         g_free (dvi_document->uri);
                
        G_OBJECT_CLASS (dvi_document_parent_class)->finalize (object);
         g_free (dvi_document->uri);
                
        G_OBJECT_CLASS (dvi_document_parent_class)->finalize (object);


@@ -237,12 +250,6 @@ dvi_document_class_init (DviDocumentClass *klass)
        dvi_context_mutex = g_mutex_new ();
 }
 
        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)
 {
 static EvDocumentInfo *
 dvi_document_get_info (EvDocument *document)
 {


@@ -258,7 +265,6 @@ dvi_document_document_iface_init (EvDocumentIface *iface)
 {
        iface->load = dvi_document_load;
        iface->save = dvi_document_save;
 {
        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;
        iface->get_n_pages = dvi_document_get_n_pages;
        iface->get_page_size = dvi_document_get_page_size;
        iface->render = dvi_document_render;


@@ -348,6 +354,84 @@ dvi_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
        iface->get_dimensions = dvi_document_thumbnails_get_dimensions;
 }
 
        iface->get_dimensions = dvi_document_thumbnails_get_dimensions;
 }
 

+/* EvFileExporterIface */
+static void
+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 (fc->filename);
+       
+       if (dvi_document->exporter_opts) {
+               g_string_free (dvi_document->exporter_opts, TRUE);
+       }
+       dvi_document->exporter_opts = g_string_new ("-s ");
+}
+
+static void
+dvi_document_file_exporter_do_page (EvFileExporter  *exporter,
+                                   EvRenderContext *rc)
+{
+       DviDocument *dvi_document = DVI_DOCUMENT(exporter);
+
+       g_string_append_printf (dvi_document->exporter_opts, "%d,", (rc->page) + 1);
+}
+
+static void
+dvi_document_file_exporter_end (EvFileExporter *exporter)
+{
+       gchar *command_line;
+       gint exit_stat;
+       GError *err = NULL;
+       gboolean success;
+       
+       DviDocument *dvi_document = DVI_DOCUMENT(exporter);
+       
+       command_line = g_strdup_printf ("dvipdfm %s -o %s \"%s\"", /* dvipdfm -s 1,2,.., -o exporter_filename dvi_filename */
+                                       dvi_document->exporter_opts->str,
+                                       dvi_document->exporter_filename,
+                                       dvi_document->context->filename);
+       
+       success = g_spawn_command_line_sync (command_line,
+                                            NULL,
+                                            NULL,
+                                            &exit_stat,
+                                            &err);
+
+       g_free (command_line);
+
+       if (success == FALSE) {
+               g_warning ("Error: %s", err->message);
+       } else if (exit_stat != 0) {
+               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->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))
 
 static gboolean
 #define RGB2ULONG(r,g,b) ((0xFF<<24)|(r<<16)|(g<<8)|(b))
 
 static gboolean


@@ -524,4 +608,7 @@ dvi_document_init (DviDocument *dvi_document)
 {
        dvi_document->context = NULL;
        dvi_document_init_params (dvi_document);
 {
        dvi_document->context = NULL;
        dvi_document_init_params (dvi_document);

+
+       dvi_document->exporter_filename = NULL;
+       dvi_document->exporter_opts = NULL;

 }
 }