*
* 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 <config.h>
#include <stdio.h>
#include <glib.h>
+#include <glib/gi18n-lib.h>
#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;
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;
static void
push_handlers (void)
{
- orig_error_handler = TIFFSetErrorHandler (NULL);
- orig_warning_handler = TIFFSetWarningHandler (NULL);
+ orig_error_handler = TIFFSetErrorHandler (NULL);
+ orig_warning_handler = TIFFSetWarningHandler (NULL);
}
static void
pop_handlers (void)
{
- TIFFSetErrorHandler (orig_error_handler);
- TIFFSetWarningHandler (orig_warning_handler);
+ TIFFSetErrorHandler (orig_error_handler);
+ TIFFSetWarningHandler (orig_warning_handler);
}
static gboolean
const char *uri,
GError **error)
{
- TiffDocument *tiff_document = TIFF_DOCUMENT (document);
- gchar *filename;
- TIFF *tiff;
+ TiffDocument *tiff_document = TIFF_DOCUMENT (document);
+ gchar *filename;
+ TIFF *tiff;
+
+ filename = g_filename_from_uri (uri, NULL, error);
+ if (!filename)
+ return FALSE;
+
+ push_handlers ();
+
+#ifdef G_OS_WIN32
+{
+ wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, error);
+ if (wfilename == NULL) {
+ return FALSE;
+ }
- push_handlers ();
- filename = g_filename_from_uri (uri, NULL, error);
- if (!filename)
- {
- pop_handlers ();
- return FALSE;
- }
-
- tiff = TIFFOpen (filename, "r");
- if (tiff)
- {
- guint32 w, h;
- /* FIXME: unused data? why bother here */
- TIFFGetField(tiff, TIFFTAG_IMAGEWIDTH, &w);
- TIFFGetField(tiff, TIFFTAG_IMAGELENGTH, &h);
- }
- if (!tiff)
- {
- pop_handlers ();
- return FALSE;
- }
- tiff_document->tiff = tiff;
- g_free (tiff_document->uri);
- g_free (filename);
- tiff_document->uri = g_strdup (uri);
-
- pop_handlers ();
- return TRUE;
+ tiff = TIFFOpenW (wfilename, "r");
+
+ g_free (wfilename);
+}
+#else
+ tiff = TIFFOpen (filename, "r");
+#endif
+ if (tiff) {
+ guint32 w, h;
+
+ /* FIXME: unused data? why bother here */
+ TIFFGetField(tiff, TIFFTAG_IMAGEWIDTH, &w);
+ TIFFGetField(tiff, TIFFTAG_IMAGELENGTH, &h);
+ }
+
+ if (!tiff) {
+ pop_handlers ();
+
+ g_set_error_literal (error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("Invalid document"));
+
+ g_free (filename);
+ return FALSE;
+ }
+
+ tiff_document->tiff = tiff;
+ g_free (tiff_document->uri);
+ g_free (filename);
+ tiff_document->uri = g_strdup (uri);
+
+ pop_handlers ();
+ return TRUE;
}
static gboolean
tiff_document_save (EvDocument *document,
- const char *uri,
- GError **error)
+ const char *uri,
+ GError **error)
{
TiffDocument *tiff_document = TIFF_DOCUMENT (document);
static int
tiff_document_get_n_pages (EvDocument *document)
{
- TiffDocument *tiff_document = TIFF_DOCUMENT (document);
-
- g_return_val_if_fail (TIFF_IS_DOCUMENT (document), 0);
- g_return_val_if_fail (tiff_document->tiff != NULL, 0);
-
- if (tiff_document->n_pages == -1)
- {
- push_handlers ();
- tiff_document->n_pages = 0;
- do
- {
- tiff_document->n_pages ++;
+ TiffDocument *tiff_document = TIFF_DOCUMENT (document);
+
+ g_return_val_if_fail (TIFF_IS_DOCUMENT (document), 0);
+ g_return_val_if_fail (tiff_document->tiff != NULL, 0);
+
+ if (tiff_document->n_pages == -1) {
+ push_handlers ();
+ tiff_document->n_pages = 0;
+
+ do {
+ tiff_document->n_pages ++;
+ }
+ while (TIFFReadDirectory (tiff_document->tiff));
+ pop_handlers ();
+ }
+
+ return tiff_document->n_pages;
+}
+
+static void
+tiff_document_get_resolution (TiffDocument *tiff_document,
+ gfloat *x_res,
+ gfloat *y_res)
+{
+ gfloat x = 72.0, y = 72.0;
+ gushort unit;
+
+ if (TIFFGetField (tiff_document->tiff, TIFFTAG_XRESOLUTION, &x) &&
+ TIFFGetField (tiff_document->tiff, TIFFTAG_YRESOLUTION, &y)) {
+ if (TIFFGetFieldDefaulted (tiff_document->tiff, TIFFTAG_RESOLUTIONUNIT, &unit)) {
+ if (unit == RESUNIT_CENTIMETER) {
+ x *= 2.54;
+ y *= 2.54;
+ }
+ }
}
- while (TIFFReadDirectory (tiff_document->tiff));
- pop_handlers ();
- }
- return tiff_document->n_pages;
+ *x_res = x;
+ *y_res = y;
}
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;
- TiffDocument *tiff_document = TIFF_DOCUMENT (document);
-
- g_return_if_fail (TIFF_IS_DOCUMENT (document));
- g_return_if_fail (tiff_document->tiff != NULL);
-
- push_handlers ();
- if (TIFFSetDirectory (tiff_document->tiff, page) != 1)
- {
- pop_handlers ();
- return;
- }
-
- TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGEWIDTH, &w);
- TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGELENGTH, &h);
- TIFFGetField (tiff_document->tiff, TIFFTAG_XRESOLUTION, &x_res);
- TIFFGetField (tiff_document->tiff, TIFFTAG_YRESOLUTION, &y_res);
- h = h * (x_res / y_res);
-
- *width = w;
- *height = h;
-
- pop_handlers ();
+ guint32 w, h;
+ gfloat x_res, y_res;
+ TiffDocument *tiff_document = TIFF_DOCUMENT (document);
+
+ g_return_if_fail (TIFF_IS_DOCUMENT (document));
+ g_return_if_fail (tiff_document->tiff != NULL);
+
+ push_handlers ();
+ if (TIFFSetDirectory (tiff_document->tiff, page->index) != 1) {
+ pop_handlers ();
+ return;
+ }
+
+ TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGEWIDTH, &w);
+ TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGELENGTH, &h);
+ tiff_document_get_resolution (tiff_document, &x_res, &y_res);
+ h = h * (x_res / y_res);
+
+ *width = w;
+ *height = h;
+
+ pop_handlers ();
+}
+
+static cairo_surface_t *
+tiff_document_render (EvDocument *document,
+ EvRenderContext *rc)
+{
+ TiffDocument *tiff_document = TIFF_DOCUMENT (document);
+ int width, height;
+ float x_res, y_res;
+ gint rowstride, bytes;
+ guchar *pixels = NULL;
+ guchar *p;
+ int orientation;
+ cairo_surface_t *surface;
+ cairo_surface_t *rotated_surface;
+ static const cairo_user_data_key_t key;
+
+ g_return_val_if_fail (TIFF_IS_DOCUMENT (document), NULL);
+ g_return_val_if_fail (tiff_document->tiff != NULL, NULL);
+
+ push_handlers ();
+ if (TIFFSetDirectory (tiff_document->tiff, rc->page->index) != 1) {
+ pop_handlers ();
+ return NULL;
+ }
+
+ if (!TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGEWIDTH, &width)) {
+ pop_handlers ();
+ return NULL;
+ }
+
+ if (! TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGELENGTH, &height)) {
+ pop_handlers ();
+ 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 ();
+
+ /* Sanity check the doc */
+ 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, or cairo was changed in an unsupported way */
+ return NULL;
+
+ bytes = height * rowstride;
+ if (bytes / rowstride != height)
+ /* overflow */
+ return NULL;
+
+ pixels = g_try_malloc (bytes);
+ if (!pixels)
+ return NULL;
+
+ surface = cairo_image_surface_create_for_data (pixels,
+ CAIRO_FORMAT_RGB24,
+ width, height,
+ rowstride);
+ cairo_surface_set_user_data (surface, &key,
+ pixels, (cairo_destroy_func_t)g_free);
+
+ TIFFReadRGBAImageOriented (tiff_document->tiff,
+ width, height,
+ (uint32 *)pixels,
+ orientation, 0);
+ 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,
+ rc->rotation);
+ cairo_surface_destroy (surface);
+
+ return rotated_surface;
}
static GdkPixbuf *
-tiff_document_render_pixbuf (EvDocument *document,
+tiff_document_get_thumbnail (EvDocument *document,
EvRenderContext *rc)
{
- TiffDocument *tiff_document = TIFF_DOCUMENT (document);
- int width, height;
- float x_res, y_res;
- gint rowstride, bytes;
- guchar *pixels = NULL;
- GdkPixbuf *pixbuf;
- GdkPixbuf *scaled_pixbuf;
- GdkPixbuf *rotated_pixbuf;
-
- g_return_val_if_fail (TIFF_IS_DOCUMENT (document), 0);
- g_return_val_if_fail (tiff_document->tiff != NULL, 0);
-
- push_handlers ();
- if (TIFFSetDirectory (tiff_document->tiff, rc->page) != 1)
- {
- pop_handlers ();
- return NULL;
- }
-
- if (!TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGEWIDTH, &width))
- {
- pop_handlers ();
- return NULL;
- }
-
- if (! TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGELENGTH, &height))
- {
- pop_handlers ();
- return NULL;
- }
-
- if (!TIFFGetField (tiff_document->tiff, TIFFTAG_XRESOLUTION, &x_res))
- {
- pop_handlers ();
- return NULL;
- }
-
- if (! TIFFGetField (tiff_document->tiff, TIFFTAG_YRESOLUTION, &y_res))
- {
- pop_handlers ();
- return NULL;
- }
-
- pop_handlers ();
-
- /* Sanity check the doc */
- if (width <= 0 || height <= 0)
- return NULL;
-
- rowstride = width * 4;
- if (rowstride / 4 != width)
- /* overflow */
- return NULL;
-
- bytes = height * rowstride;
- if (bytes / rowstride != height)
- /* overflow */
- return NULL;
+ TiffDocument *tiff_document = TIFF_DOCUMENT (document);
+ int width, height;
+ float x_res, y_res;
+ gint rowstride, bytes;
+ guchar *pixels = NULL;
+ GdkPixbuf *pixbuf;
+ GdkPixbuf *scaled_pixbuf;
+ GdkPixbuf *rotated_pixbuf;
+
+ push_handlers ();
+ if (TIFFSetDirectory (tiff_document->tiff, rc->page->index) != 1) {
+ pop_handlers ();
+ return NULL;
+ }
- pixels = g_try_malloc (bytes);
- if (!pixels)
- return NULL;
+ if (!TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGEWIDTH, &width)) {
+ pop_handlers ();
+ return NULL;
+ }
- pixbuf = gdk_pixbuf_new_from_data (pixels, GDK_COLORSPACE_RGB, TRUE, 8,
- width, height, rowstride,
- (GdkPixbufDestroyNotify) g_free, NULL);
+ if (! TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGELENGTH, &height)) {
+ pop_handlers ();
+ return NULL;
+ }
- pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, width, height);
- TIFFReadRGBAImageOriented (tiff_document->tiff, width, height, (uint32 *)gdk_pixbuf_get_pixels (pixbuf), ORIENTATION_TOPLEFT, 1);
- pop_handlers ();
+ tiff_document_get_resolution (tiff_document, &x_res, &y_res);
+
+ pop_handlers ();
+
+ /* Sanity check the doc */
+ if (width <= 0 || height <= 0)
+ return NULL;
+
+ rowstride = width * 4;
+ if (rowstride / 4 != width)
+ /* overflow */
+ return NULL;
+
+ bytes = height * rowstride;
+ if (bytes / rowstride != height)
+ /* overflow */
+ return NULL;
+
+ pixels = g_try_malloc (bytes);
+ if (!pixels)
+ return NULL;
+
+ pixbuf = gdk_pixbuf_new_from_data (pixels, GDK_COLORSPACE_RGB, TRUE, 8,
+ width, height, rowstride,
+ (GdkPixbufDestroyNotify) g_free, NULL);
+ TIFFReadRGBAImageOriented (tiff_document->tiff,
+ width, height,
+ (uint32 *)pixels,
+ ORIENTATION_TOPLEFT, 0);
+ pop_handlers ();
+
+ scaled_pixbuf = gdk_pixbuf_scale_simple (pixbuf,
+ width * rc->scale,
+ height * rc->scale * (x_res / y_res),
+ GDK_INTERP_BILINEAR);
+ g_object_unref (pixbuf);
+
+ rotated_pixbuf = gdk_pixbuf_rotate_simple (scaled_pixbuf, 360 - rc->rotation);
+ g_object_unref (scaled_pixbuf);
+
+ return rotated_pixbuf;
+}
- scaled_pixbuf = gdk_pixbuf_scale_simple (pixbuf,
- width * rc->scale,
- height * rc->scale * (x_res/y_res),
- GDK_INTERP_BILINEAR);
- g_object_unref (pixbuf);
+static gchar *
+tiff_document_get_page_label (EvDocument *document,
+ EvPage *page)
+{
+ TiffDocument *tiff_document = TIFF_DOCUMENT (document);
+ static gchar *label;
- rotated_pixbuf = gdk_pixbuf_rotate_simple (scaled_pixbuf, 360 - rc->rotation);
- g_object_unref (scaled_pixbuf);
+ if (TIFFGetField (tiff_document->tiff, TIFFTAG_PAGENAME, &label) &&
+ g_utf8_validate (label, -1, NULL)) {
+ return g_strdup (label);
+ }
- return rotated_pixbuf;
+ return NULL;
}
static void
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_pixbuf = tiff_document_render_pixbuf;
- iface->get_info = tiff_document_get_info;
-}
-static GdkPixbuf *
-tiff_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document,
- gint page,
- gint rotation,
- gint size,
- gboolean border)
-{
- EvRenderContext *rc;
- GdkPixbuf *pixbuf;
- gdouble w, h;
-
- tiff_document_get_page_size (EV_DOCUMENT (document),
- page,
- &w, &h);
-
- rc = ev_render_context_new (rotation, page, size/w);
- pixbuf = tiff_document_render_pixbuf (EV_DOCUMENT (document), rc);
- g_object_unref (G_OBJECT (rc));
-
- if (border)
- {
- GdkPixbuf *tmp_pixbuf = pixbuf;
- pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, 0, tmp_pixbuf);
- g_object_unref (tmp_pixbuf);
- }
-
- return pixbuf;
-}
-
-static void
-tiff_document_thumbnails_get_dimensions (EvDocumentThumbnails *document,
- gint page,
- gint suggested_width,
- gint *width,
- gint *height)
-{
- gdouble page_ratio;
- gdouble w, h;
-
- tiff_document_get_page_size (EV_DOCUMENT (document),
- page,
- &w, &h);
- g_return_if_fail (w > 0);
- page_ratio = h/w;
- *width = suggested_width;
- *height = (gint) (suggested_width * page_ratio);
-}
-
-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 */
-
-static gboolean
-tiff_document_file_exporter_format_supported (EvFileExporter *exporter,
- EvFileExporterFormat format)
-{
- return (format == EV_FILE_FORMAT_PS);
-}
-
static void
-tiff_document_file_exporter_begin (EvFileExporter *exporter,
- EvFileExporterFormat format,
- const char *filename,
- int first_page,
- int last_page,
- double width,
- double height,
- gboolean duplex)
+tiff_document_file_exporter_begin (EvFileExporter *exporter,
+ EvFileExporterContext *fc)
{
TiffDocument *document = TIFF_DOCUMENT (exporter);
- document->ps_export_ctx = tiff2ps_context_new(filename);
+ document->ps_export_ctx = tiff2ps_context_new(fc->filename);
}
static void
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);
tiff2ps_context_finalize(document->ps_export_ctx);
}
+static EvFileExporterCapabilities
+tiff_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_PS;
+}
+
static void
-tiff_document_document_file_exporter_iface_init (EvFileExporterIface *iface)
+tiff_document_document_file_exporter_iface_init (EvFileExporterInterface *iface)
{
- iface->format_supported = tiff_document_file_exporter_format_supported;
iface->begin = tiff_document_file_exporter_begin;
iface->do_page = tiff_document_file_exporter_do_page;
iface->end = tiff_document_file_exporter_end;
+ iface->get_capabilities = tiff_document_file_exporter_get_capabilities;
}
static void
tiff_document_init (TiffDocument *tiff_document)
{
- tiff_document->n_pages = -1;
+ tiff_document->n_pages = -1;
}
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff