Updated Vietnamese translation.

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

diff --git a/backend/djvu/djvu-document.c b/backend/djvu/djvu-document.c
index fc1ccaacd95e3c3a2ac34b007af189bad2516300..88c6bc85dbf7075b0133fe64fc1042b5e3a6d261 100644 (file)
--- a/backend/djvu/djvu-document.c
+++ b/backend/djvu/djvu-document.c
@@ -203,7 +203,7 @@ djvu_document_get_page_size (EvDocument   *document,
 
        while ((r = ddjvu_document_get_pageinfo(djvu_document->d_document, page, &info)) < DDJVU_JOB_OK)
                djvu_handle_events(djvu_document, TRUE);
-
+       
        if (r >= DDJVU_JOB_FAILED)
                djvu_handle_events(djvu_document, TRUE);
 
@@ -211,45 +211,77 @@ djvu_document_get_page_size (EvDocument   *document,
         *height = info.height * SCALE_FACTOR;
 }
 
-static GdkPixbuf *
-djvu_document_render_pixbuf (EvDocument  *document, 
-                            EvRenderContext *rc)
+static cairo_surface_t *
+djvu_document_render (EvDocument      *document, 
+                     EvRenderContext *rc)
 {
        DjvuDocument *djvu_document = DJVU_DOCUMENT (document);
-       GdkPixbuf *pixbuf;
-       GdkPixbuf *rotated_pixbuf;
-       
+       cairo_surface_t *surface;
+       gchar *pixels;
+       gint   rowstride;
        ddjvu_rect_t rrect;
        ddjvu_rect_t prect;
        ddjvu_page_t *d_page;
-       
-       double page_width, page_height;
+       ddjvu_page_rotation_t rotation;
+       double page_width, page_height, tmp;
+       static const cairo_user_data_key_t key;
 
        d_page = ddjvu_page_create_by_pageno (djvu_document->d_document, rc->page);
        
        while (!ddjvu_page_decoding_done (d_page))
                djvu_handle_events(djvu_document, TRUE);
-       
-       page_width = ddjvu_page_get_width (d_page) * rc->scale * SCALE_FACTOR;
-       page_height = ddjvu_page_get_height (d_page) * rc->scale * SCALE_FACTOR;
 
-       pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, page_width, page_height);
+       page_width = ddjvu_page_get_width (d_page) * rc->scale * SCALE_FACTOR + 0.5;
+       page_height = ddjvu_page_get_height (d_page) * rc->scale * SCALE_FACTOR + 0.5;
+       
+       switch (rc->rotation) {
+               case 90:
+                       rotation = DDJVU_ROTATE_90;
+                       tmp = page_height;
+                       page_height = page_width;
+                       page_width = tmp;
+                       
+                       break;
+               case 180:
+                       rotation = DDJVU_ROTATE_180;
+                       
+                       break;
+               case 270:
+                       rotation = DDJVU_ROTATE_270;
+                       tmp = page_height;
+                       page_height = page_width;
+                       page_width = tmp;
+                       
+                       break;
+               default:
+                       rotation = DDJVU_ROTATE_0;
+       }
 
-       prect.x = 0; prect.y = 0;
-       prect.w = page_width; prect.h = page_height;
+       rowstride = page_width * 4;
+       pixels = (gchar *) g_malloc (page_height * rowstride);
+       surface = cairo_image_surface_create_for_data (pixels,
+                                                      CAIRO_FORMAT_ARGB32,
+                                                      page_width,
+                                                      page_height,
+                                                      rowstride);
+       cairo_surface_set_user_data (surface, &key,
+                                    pixels, (cairo_destroy_func_t)g_free);
+       prect.x = 0;
+       prect.y = 0;
+       prect.w = page_width;
+       prect.h = page_height;
        rrect = prect;
 
-       ddjvu_page_render(d_page, DDJVU_RENDER_COLOR,
-                          &prect,
-                          &rrect,
-                          djvu_document->d_format,
-                         gdk_pixbuf_get_rowstride (pixbuf),
-                          (gchar *)gdk_pixbuf_get_pixels (pixbuf));
-       
-       rotated_pixbuf = gdk_pixbuf_rotate_simple (pixbuf, 360 - rc->rotation);
-       g_object_unref (pixbuf);
+       ddjvu_page_set_rotation (d_page, rotation);
        
-       return rotated_pixbuf;
+       ddjvu_page_render (d_page, DDJVU_RENDER_COLOR,
+                          &prect,
+                          &rrect,
+                          djvu_document->d_format,
+                          rowstride,
+                          pixels);
+
+       return surface;
 }
 
 static void
@@ -268,6 +300,7 @@ djvu_document_finalize (GObject *object)
            
        ddjvu_context_release (djvu_document->d_context);
        ddjvu_format_release (djvu_document->d_format);
+       ddjvu_format_release (djvu_document->thumbs_format);
        g_free (djvu_document->uri);
        
        G_OBJECT_CLASS (djvu_document_parent_class)->finalize (object);
@@ -329,7 +362,7 @@ djvu_document_document_iface_init (EvDocumentIface *iface)
        iface->get_text = djvu_document_get_text;
        iface->get_n_pages = djvu_document_get_n_pages;
        iface->get_page_size = djvu_document_get_page_size;
-       iface->render_pixbuf = djvu_document_render_pixbuf;
+       iface->render = djvu_document_render;
        iface->get_info = djvu_document_get_info;
 }
 
@@ -383,7 +416,7 @@ djvu_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document,
                    
        ddjvu_thumbnail_render (djvu_document->d_document, rc->page, 
                                &thumb_width, &thumb_height,
-                               djvu_document->d_format,
+                               djvu_document->thumbs_format,
                                gdk_pixbuf_get_rowstride (pixbuf), 
                                (gchar *)pixels);
 
@@ -417,13 +450,13 @@ djvu_document_file_exporter_format_supported (EvFileExporter      *exporter,
 
 static void
 djvu_document_file_exporter_begin (EvFileExporter      *exporter,
-                                 EvFileExporterFormat format,
-                                const char          *filename, /* for storing the temp ps file */
-                                 int                  first_page,
-                                 int                  last_page,
-                                 double               width,
-                                 double               height,
-                                 gboolean             duplex)
+                                  EvFileExporterFormat format,
+                                  const char          *filename, /* for storing the temp ps file */
+                                  int                  first_page,
+                                  int                  last_page,
+                                  double               width,
+                                  double               height,
+                                  gboolean             duplex)
 {
        DjvuDocument *djvu_document = DJVU_DOCUMENT (exporter);
        
@@ -435,7 +468,8 @@ djvu_document_file_exporter_begin (EvFileExporter      *exporter,
 }
 
 static void
-djvu_document_file_exporter_do_page (EvFileExporter *exporter, EvRenderContext *rc)
+djvu_document_file_exporter_do_page (EvFileExporter  *exporter,
+                                    EvRenderContext *rc)
 {
        DjvuDocument *djvu_document = DJVU_DOCUMENT (exporter);
        
@@ -478,9 +512,14 @@ djvu_document_file_exporter_iface_init (EvFileExporterIface *iface)
 static void
 djvu_document_init (DjvuDocument *djvu_document)
 {
+       guint masks[4] = { 0xff0000, 0xff00, 0xff, 0xff000000 };
+       
        djvu_document->d_context = ddjvu_context_create ("Evince");
-       djvu_document->d_format = ddjvu_format_create (DDJVU_FORMAT_RGB24, 0, 0);
-       ddjvu_format_set_row_order (djvu_document->d_format,1);
+       djvu_document->d_format = ddjvu_format_create (DDJVU_FORMAT_RGBMASK32, 4, masks);
+       ddjvu_format_set_row_order (djvu_document->d_format, 1);
+
+       djvu_document->thumbs_format = ddjvu_format_create (DDJVU_FORMAT_RGB24, 0, 0);
+       ddjvu_format_set_row_order (djvu_document->thumbs_format, 1);
 
        djvu_document->ps_filename = NULL;
        djvu_document->opts = g_string_new ("");