X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;ds=sidebyside;f=backend%2Ftiff%2Ftiff-document.c;h=1be2aecebfec467f99334b09236031d8bd97ff50;hb=212d9a536bc60e711b779feb5e8aa33db654997d;hp=c6f4db2b76bde686c78d463af0bfb55b35de7047;hpb=a953c6011f2fba7441758469118a886a33458e50;p=evince.git diff --git a/backend/tiff/tiff-document.c b/backend/tiff/tiff-document.c index c6f4db2b..1be2aece 100644 --- a/backend/tiff/tiff-document.c +++ b/backend/tiff/tiff-document.c @@ -14,30 +14,34 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /* FIXME: Should probably buffer calls to libtiff with TIFFSetWarningHandler */ +#include "config.h" + +#include #include #include +#include #include "tiffio.h" #include "tiff2ps.h" #include "tiff-document.h" #include "ev-document-misc.h" -#include "ev-document-thumbnails.h" #include "ev-file-exporter.h" +#include "ev-file-helpers.h" struct _TiffDocumentClass { - GObjectClass parent_class; + EvDocumentClass parent_class; }; struct _TiffDocument { - GObject parent_instance; + EvDocument parent_instance; TIFF *tiff; gint n_pages; @@ -48,17 +52,12 @@ struct _TiffDocument typedef struct _TiffDocumentClass TiffDocumentClass; -static void tiff_document_document_iface_init (EvDocumentIface *iface); -static void tiff_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface); -static void tiff_document_document_file_exporter_iface_init (EvFileExporterIface *iface); - -G_DEFINE_TYPE_WITH_CODE (TiffDocument, tiff_document, G_TYPE_OBJECT, - { G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT, - tiff_document_document_iface_init); - G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS, - tiff_document_document_thumbnails_iface_init); - G_IMPLEMENT_INTERFACE (EV_TYPE_FILE_EXPORTER, - tiff_document_document_file_exporter_iface_init); +static void tiff_document_document_file_exporter_iface_init (EvFileExporterInterface *iface); + +EV_BACKEND_REGISTER_WITH_CODE (TiffDocument, tiff_document, + { + EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_FILE_EXPORTER, + tiff_document_document_file_exporter_iface_init); }); static TIFFErrorHandler orig_error_handler = NULL; @@ -87,13 +86,11 @@ tiff_document_load (EvDocument *document, gchar *filename; TIFF *tiff; - push_handlers (); filename = g_filename_from_uri (uri, NULL, error); - if (!filename) { - pop_handlers (); + if (!filename) return FALSE; - } + push_handlers (); tiff = TIFFOpen (filename, "r"); if (tiff) { guint32 w, h; @@ -105,6 +102,13 @@ tiff_document_load (EvDocument *document, if (!tiff) { pop_handlers (); + + g_set_error_literal (error, + EV_DOCUMENT_ERROR, + EV_DOCUMENT_ERROR_INVALID, + _("Invalid document")); + + g_free (filename); return FALSE; } @@ -172,10 +176,10 @@ tiff_document_get_resolution (TiffDocument *tiff_document, } static void -tiff_document_get_page_size (EvDocument *document, - int page, - double *width, - double *height) +tiff_document_get_page_size (EvDocument *document, + EvPage *page, + double *width, + double *height) { guint32 w, h; gfloat x_res, y_res; @@ -185,7 +189,7 @@ tiff_document_get_page_size (EvDocument *document, g_return_if_fail (tiff_document->tiff != NULL); push_handlers (); - if (TIFFSetDirectory (tiff_document->tiff, page) != 1) { + if (TIFFSetDirectory (tiff_document->tiff, page->index) != 1) { pop_handlers (); return; } @@ -210,9 +214,8 @@ tiff_document_render (EvDocument *document, float x_res, y_res; gint rowstride, bytes; guchar *pixels = NULL; - GdkPixbuf *pixbuf; - GdkPixbuf *scaled_pixbuf; - GdkPixbuf *rotated_pixbuf; + guchar *p; + int orientation; cairo_surface_t *surface; cairo_surface_t *rotated_surface; static const cairo_user_data_key_t key; @@ -221,7 +224,7 @@ tiff_document_render (EvDocument *document, g_return_val_if_fail (tiff_document->tiff != NULL, NULL); push_handlers (); - if (TIFFSetDirectory (tiff_document->tiff, rc->page) != 1) { + if (TIFFSetDirectory (tiff_document->tiff, rc->page->index) != 1) { pop_handlers (); return NULL; } @@ -236,6 +239,10 @@ tiff_document_render (EvDocument *document, return NULL; } + if (! TIFFGetField (tiff_document->tiff, TIFFTAG_ORIENTATION, &orientation)) { + orientation = ORIENTATION_TOPLEFT; + } + tiff_document_get_resolution (tiff_document, &x_res, &y_res); pop_handlers (); @@ -244,11 +251,15 @@ tiff_document_render (EvDocument *document, if (width <= 0 || height <= 0) return NULL; +#ifdef HAVE_CAIRO_FORMAT_STRIDE_FOR_WIDTH + rowstride = cairo_format_stride_for_width (CAIRO_FORMAT_RGB24, width); +#else rowstride = width * 4; +#endif if (rowstride / 4 != width) - /* overflow */ + /* overflow, or cairo was changed in an unsupported way */ return NULL; - + bytes = height * rowstride; if (bytes / rowstride != height) /* overflow */ @@ -268,9 +279,25 @@ tiff_document_render (EvDocument *document, TIFFReadRGBAImageOriented (tiff_document->tiff, width, height, (uint32 *)pixels, - ORIENTATION_TOPLEFT, 1); + orientation, 1); pop_handlers (); + /* Convert the format returned by libtiff to + * what cairo expects + */ + p = pixels; + while (p < pixels + bytes) { + guint32 *pixel = (guint32*)p; + guint8 r = TIFFGetR(*pixel); + guint8 g = TIFFGetG(*pixel); + guint8 b = TIFFGetB(*pixel); + guint8 a = TIFFGetA(*pixel); + + *pixel = (a << 24) | (r << 16) | (g << 8) | b; + + p += 4; + } + rotated_surface = ev_document_misc_surface_rotate_and_scale (surface, (width * rc->scale) + 0.5, (height * rc->scale * (x_res / y_res)) + 0.5, @@ -281,7 +308,7 @@ tiff_document_render (EvDocument *document, } static GdkPixbuf * -tiff_document_render_pixbuf (EvDocument *document, +tiff_document_get_thumbnail (EvDocument *document, EvRenderContext *rc) { TiffDocument *tiff_document = TIFF_DOCUMENT (document); @@ -294,7 +321,7 @@ tiff_document_render_pixbuf (EvDocument *document, GdkPixbuf *rotated_pixbuf; push_handlers (); - if (TIFFSetDirectory (tiff_document->tiff, rc->page) != 1) { + if (TIFFSetDirectory (tiff_document->tiff, rc->page->index) != 1) { pop_handlers (); return NULL; } @@ -352,6 +379,21 @@ tiff_document_render_pixbuf (EvDocument *document, return rotated_pixbuf; } +static gchar * +tiff_document_get_page_label (EvDocument *document, + EvPage *page) +{ + TiffDocument *tiff_document = TIFF_DOCUMENT (document); + static gchar *label; + + if (TIFFGetField (tiff_document->tiff, TIFFTAG_PAGENAME, &label) && + g_utf8_validate (label, -1, NULL)) { + return g_strdup (label); + } + + return NULL; +} + static void tiff_document_finalize (GObject *object) { @@ -368,85 +410,18 @@ tiff_document_finalize (GObject *object) static void tiff_document_class_init (TiffDocumentClass *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 = tiff_document_finalize; -} -static gboolean -tiff_document_can_get_text (EvDocument *document) -{ - return FALSE; -} - -static EvDocumentInfo * -tiff_document_get_info (EvDocument *document) -{ - EvDocumentInfo *info; - - info = g_new0 (EvDocumentInfo, 1); - info->fields_mask = 0; - - return info; -} - -static void -tiff_document_document_iface_init (EvDocumentIface *iface) -{ - iface->load = tiff_document_load; - iface->save = tiff_document_save; - iface->can_get_text = tiff_document_can_get_text; - iface->get_n_pages = tiff_document_get_n_pages; - iface->get_page_size = tiff_document_get_page_size; - iface->render = tiff_document_render; - iface->get_info = tiff_document_get_info; -} - -static GdkPixbuf * -tiff_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document, - EvRenderContext *rc, - gboolean border) -{ - GdkPixbuf *pixbuf; - - pixbuf = tiff_document_render_pixbuf (EV_DOCUMENT (document), rc); - - if (border) { - GdkPixbuf *tmp_pixbuf = pixbuf; - - pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, tmp_pixbuf); - g_object_unref (tmp_pixbuf); - } - - return pixbuf; -} - -static void -tiff_document_thumbnails_get_dimensions (EvDocumentThumbnails *document, - EvRenderContext *rc, - gint *width, - gint *height) -{ - gdouble page_width, page_height; - - tiff_document_get_page_size (EV_DOCUMENT (document), - rc->page, - &page_width, &page_height); - - if (rc->rotation == 90 || rc->rotation == 270) { - *width = (gint) (page_height * rc->scale); - *height = (gint) (page_width * rc->scale); - } else { - *width = (gint) (page_width * rc->scale); - *height = (gint) (page_height * rc->scale); - } -} - -static void -tiff_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface) -{ - iface->get_thumbnail = tiff_document_thumbnails_get_thumbnail; - iface->get_dimensions = tiff_document_thumbnails_get_dimensions; + ev_document_class->load = tiff_document_load; + ev_document_class->save = tiff_document_save; + ev_document_class->get_n_pages = tiff_document_get_n_pages; + ev_document_class->get_page_size = tiff_document_get_page_size; + ev_document_class->render = tiff_document_render; + ev_document_class->get_thumbnail = tiff_document_get_thumbnail; + ev_document_class->get_page_label = tiff_document_get_page_label; } /* postscript exporter implementation */ @@ -466,7 +441,7 @@ tiff_document_file_exporter_do_page (EvFileExporter *exporter, EvRenderContext * if (document->ps_export_ctx == NULL) return; - if (TIFFSetDirectory (document->tiff, rc->page) != 1) + if (TIFFSetDirectory (document->tiff, rc->page->index) != 1) return; tiff2ps_process_page (document->ps_export_ctx, document->tiff, 0, 0, 0, 0, 0); @@ -493,7 +468,7 @@ tiff_document_file_exporter_get_capabilities (EvFileExporter *exporter) } static void -tiff_document_document_file_exporter_iface_init (EvFileExporterIface *iface) +tiff_document_document_file_exporter_iface_init (EvFileExporterInterface *iface) { iface->begin = tiff_document_file_exporter_begin; iface->do_page = tiff_document_file_exporter_do_page;