]> www.fi.muni.cz Git - evince.git/blobdiff - backend/dvi/dvi-document.c
[windows] Define WIFEXITED and WEXITSTATUS on Windows
[evince.git] / backend / dvi / dvi-document.c
index 56d8bbb84aa7facd1553671528934244e4626676..5c4ecea5739fc3dbfa55274b7cfa8dd56dd81195 100644 (file)
  * 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"
+#include "ev-file-exporter.h"
+#include "ev-file-helpers.h"
 
 #include "mdvi.h"
 #include "fonts.h"
+#include "color.h"
 #include "cairo-device.h"
 
-#include <gtk/gtk.h>
-#include <glib/gi18n.h>
+#include <glib/gi18n-lib.h>
+#include <ctype.h>
+#ifdef G_OS_WIN32
+# define WIFEXITED(x) ((x) != 3)
+# define WEXITSTATUS(x) (x)
+#else
+# include <sys/wait.h>
+#endif
+#include <stdlib.h>
 
 GMutex *dvi_context_mutex = NULL;
 
@@ -37,12 +49,12 @@ enum {
 
 struct _DviDocumentClass
 {
-       GObjectClass parent_class;
+       EvDocumentClass parent_class;
 };
 
 struct _DviDocument
 {
-       GObject parent_instance;
+       EvDocument parent_instance;
 
        DviContext *context;
        DviPageSpec *spec;
@@ -53,25 +65,24 @@ struct _DviDocument
        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);
-static void dvi_document_get_page_size                         (EvDocument                *document,
-                                                        int                        page,
-                                                        double                    *width,
-                                                        double                    *height);
+static void dvi_document_file_exporter_iface_init      (EvFileExporterIface       *iface);
 static void dvi_document_do_color_special               (DviContext                *dvi,
                                                         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,
+     {
+      EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS, dvi_document_document_thumbnails_iface_init);
+      EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_FILE_EXPORTER, dvi_document_file_exporter_iface_init);
      });
 
 static gboolean
@@ -83,27 +94,22 @@ dvi_document_load (EvDocument  *document,
        DviDocument *dvi_document = DVI_DOCUMENT(document);
        
        filename = g_filename_from_uri (uri, NULL, error);
-       
-       if (!filename) {
-               g_set_error (error,
-                            EV_DOCUMENT_ERROR,
-                            EV_DOCUMENT_ERROR_INVALID,
-                            _("File not available"));
+       if (!filename)
                return FALSE;
-       }
        
        g_mutex_lock (dvi_context_mutex);
        if (dvi_document->context)
                mdvi_destroy_context (dvi_document->context);
-       
+
        dvi_document->context = mdvi_init_context(dvi_document->params, dvi_document->spec, filename);
        g_mutex_unlock (dvi_context_mutex);
+       g_free (filename);
        
        if (!dvi_document->context) {
-               g_set_error (error,
-                            EV_DOCUMENT_ERROR,
-                            EV_DOCUMENT_ERROR_INVALID,
-                            _("DVI document has incorrect format"));
+               g_set_error_literal (error,
+                                     EV_DOCUMENT_ERROR,
+                                     EV_DOCUMENT_ERROR_INVALID,
+                                     _("DVI document has incorrect format"));
                return FALSE;
        }
        
@@ -143,7 +149,7 @@ dvi_document_get_n_pages (EvDocument *document)
 
 static void
 dvi_document_get_page_size (EvDocument *document,
-                           int         page,
+                           EvPage     *page,
                            double     *width,
                            double     *height)
 {
@@ -170,7 +176,7 @@ dvi_document_render (EvDocument      *document,
         */
        g_mutex_lock (dvi_context_mutex);
        
-       mdvi_setpage (dvi_document->context, rc->page);
+       mdvi_setpage (dvi_document->context, rc->page->index);
        
        mdvi_set_shrink (dvi_document->context, 
                         (int)((dvi_document->params->hshrink - 1) / rc->scale) + 1,
@@ -217,16 +223,22 @@ dvi_document_finalize (GObject *object)
        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);
 }
 
-
 static void
 dvi_document_class_init (DviDocumentClass *klass)
 {
-       GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+       GObjectClass    *gobject_class = G_OBJECT_CLASS (klass);
+       EvDocumentClass *ev_document_class = EV_DOCUMENT_CLASS (klass);
 
        gobject_class->finalize = dvi_document_finalize;
 
@@ -235,41 +247,19 @@ dvi_document_class_init (DviDocumentClass *klass)
        mdvi_register_fonts ();
 
        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)
-{
-       EvDocumentInfo *info;
-
-       info = g_new0 (EvDocumentInfo, 1);
-
-       return info;
-}
-
-static void
-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;
-       iface->get_info = dvi_document_get_info;
+       ev_document_class->load = dvi_document_load;
+       ev_document_class->save = dvi_document_save;
+       ev_document_class->get_n_pages = dvi_document_get_n_pages;
+       ev_document_class->get_page_size = dvi_document_get_page_size;
+       ev_document_class->render = dvi_document_render;
 }
 
 static void
 dvi_document_thumbnails_get_dimensions (EvDocumentThumbnails *document,
                                        EvRenderContext      *rc, 
-                                       gint                  *width,
-                                       gint                  *height)
+                                       gint                 *width,
+                                       gint                 *height)
 {      
        DviDocument *dvi_document = DVI_DOCUMENT (document);
        gdouble page_width = dvi_document->base_width;
@@ -301,7 +291,7 @@ dvi_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document,
 
        g_mutex_lock (dvi_context_mutex);
        
-       mdvi_setpage (dvi_document->context, rc->page);
+       mdvi_setpage (dvi_document->context, rc->page->index);
 
        mdvi_set_shrink (dvi_document->context, 
                          (int)dvi_document->base_width * dvi_document->params->hshrink / thumb_width,
@@ -348,10 +338,88 @@ dvi_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
        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->index) + 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 (!WIFEXITED(exit_stat) || WEXITSTATUS(exit_stat) != EXIT_SUCCESS){
+               g_warning ("Error: dvipdfm does not end normally or exit with a failure 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
-hsb2rgb (float h, float s, float v, char *red, char *green, char *blue)
+hsb2rgb (float h, float s, float v, guchar *red, guchar *green, guchar *blue)
 {
         float i, f, p, q, t, r, g, b;
 
@@ -395,9 +463,9 @@ hsb2rgb (float h, float s, float v, char *red, char *green, char *blue)
                b = q;
        }
 
-        (*red) = (char)floor(r * 255);
-        (*green) = (char)floor(g * 255);
-        (*blue) = (char)floor(b * 255);
+        *red   = (guchar)floor(r * 255.0);
+        *green = (guchar)floor(g * 255.0);
+        *blue  = (guchar)floor(b * 255.0);
        
         return TRUE;
 }
@@ -524,4 +592,7 @@ dvi_document_init (DviDocument *dvi_document)
 {
        dvi_document->context = NULL;
        dvi_document_init_params (dvi_document);
+
+       dvi_document->exporter_filename = NULL;
+       dvi_document->exporter_opts = NULL;
 }