-
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
/*
* Copyright (C) 2005, Jonathan Blandford <jrb@gnome.org>
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-/* FIXME: Shoudl probably buffer calls to libtiff with TIFFSetWarningHandler
+/* FIXME: Should probably buffer calls to libtiff with TIFFSetWarningHandler
*/
+
+#include <stdio.h>
+#include <glib.h>
+
#include "tiffio.h"
+#include "tiff2ps.h"
#include "tiff-document.h"
-#include "ev-document-thumbnails.h"
#include "ev-document-misc.h"
+#include "ev-document-thumbnails.h"
+#include "ev-ps-exporter.h"
struct _TiffDocumentClass
{
TIFF *tiff;
gint n_pages;
+ EvOrientation orientation;
+ TIFF2PSContext *ps_export_ctx;
};
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_ps_exporter_iface_init (EvPSExporterIface *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_PS_EXPORTER,
+ tiff_document_document_ps_exporter_iface_init);
});
static TIFFErrorHandler orig_error_handler = NULL;
if (tiff)
{
guint32 w, h;
-
+ /* FIXME: unused data? why bother here */
TIFFGetField(tiff, TIFFTAG_IMAGEWIDTH, &w);
TIFFGetField(tiff, TIFFTAG_IMAGELENGTH, &h);
}
double *height)
{
guint32 w, h;
+ gfloat x_res, y_res;
TiffDocument *tiff_document = TIFF_DOCUMENT (document);
g_return_if_fail (TIFF_IS_DOCUMENT (document));
TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGEWIDTH, &w);
TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGELENGTH, &h);
-
- *width = w;
- *height = h;
+ TIFFGetField (tiff_document->tiff, TIFFTAG_XRESOLUTION, &x_res);
+ TIFFGetField (tiff_document->tiff, TIFFTAG_YRESOLUTION, &y_res);
+ h = h * (x_res / y_res);
+
+ if (tiff_document->orientation == EV_ORIENTATION_PORTRAIT ||
+ tiff_document->orientation == EV_ORIENTATION_UPSIDEDOWN) {
+ *width = w;
+ *height = h;
+ } else {
+ *width = h;
+ *height = w;
+ }
pop_handlers ();
}
+static EvOrientation
+tiff_document_get_orientation (EvDocument *document)
+{
+ TiffDocument *tiff_document = TIFF_DOCUMENT (document);
+
+ return tiff_document->orientation;
+}
+
+static void
+tiff_document_set_orientation (EvDocument *document,
+ EvOrientation orientation)
+{
+ TiffDocument *tiff_document = TIFF_DOCUMENT (document);
+
+ tiff_document->orientation = orientation;
+}
+
+static GdkPixbuf *
+rotate_pixbuf (EvDocument *document, GdkPixbuf *pixbuf)
+{
+ TiffDocument *tiff_document = TIFF_DOCUMENT (document);
+
+ switch (tiff_document->orientation)
+ {
+ case EV_ORIENTATION_LANDSCAPE:
+ return gdk_pixbuf_rotate_simple (pixbuf, 90);
+ case EV_ORIENTATION_UPSIDEDOWN:
+ return gdk_pixbuf_rotate_simple (pixbuf, 180);
+ case EV_ORIENTATION_SEASCAPE:
+ return gdk_pixbuf_rotate_simple (pixbuf, 270);
+ default:
+ return g_object_ref (pixbuf);
+ }
+}
+
static GdkPixbuf *
-tiff_document_render_pixbuf (EvDocument *document, int page, double scale)
+tiff_document_render_pixbuf (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, page) != 1)
+ 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;
}
- TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGEWIDTH, &width);
- TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGELENGTH, &height);
+ 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);
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 ();
scaled_pixbuf = gdk_pixbuf_scale_simple (pixbuf,
- width * scale,
- height * scale,
+ width * rc->scale,
+ height * rc->scale * (x_res/y_res),
GDK_INTERP_BILINEAR);
g_object_unref (pixbuf);
- return scaled_pixbuf;
+ rotated_pixbuf = rotate_pixbuf (document, scaled_pixbuf);
+ g_object_unref (scaled_pixbuf);
+
+ return rotated_pixbuf;
}
static void
iface->get_page_size = tiff_document_get_page_size;
iface->render_pixbuf = tiff_document_render_pixbuf;
iface->get_info = tiff_document_get_info;
+ iface->get_orientation = tiff_document_get_orientation;
+ iface->set_orientation = tiff_document_set_orientation;
}
static GdkPixbuf *
gint size,
gboolean border)
{
+ EvRenderContext *rc;
GdkPixbuf *pixbuf;
gdouble w, h;
page,
&w, &h);
- pixbuf = tiff_document_render_pixbuf (EV_DOCUMENT (document),
- page,
- size/w);
+ rc = ev_render_context_new (EV_ORIENTATION_PORTRAIT, page, size/w);
+ pixbuf = tiff_document_render_pixbuf (EV_DOCUMENT (document), rc);
+ g_object_unref (G_OBJECT (rc));
if (border)
{
iface->get_dimensions = tiff_document_thumbnails_get_dimensions;
}
+/* postscript exporter implementation */
+
+static void
+tiff_document_ps_export_begin (EvPSExporter *exporter, const char *filename,
+ int first_page, int last_page)
+{
+ TiffDocument *document = TIFF_DOCUMENT (exporter);
+
+ document->ps_export_ctx = tiff2ps_context_new(filename);
+}
+
+static void
+tiff_document_ps_export_do_page (EvPSExporter *exporter, int page)
+{
+ TiffDocument *document = TIFF_DOCUMENT (exporter);
+
+ if (document->ps_export_ctx == NULL)
+ return;
+ if (TIFFSetDirectory (document->tiff, page) != 1)
+ return;
+ tiff2ps_process_page (document->ps_export_ctx, document->tiff,
+ 0, 0, 0, 0, 0);
+}
+
+static void
+tiff_document_ps_export_end (EvPSExporter *exporter)
+{
+ TiffDocument *document = TIFF_DOCUMENT (exporter);
+
+ if (document->ps_export_ctx == NULL)
+ return;
+ tiff2ps_context_finalize(document->ps_export_ctx);
+}
+
+static void
+tiff_document_document_ps_exporter_iface_init (EvPSExporterIface *iface)
+{
+ iface->begin = tiff_document_ps_export_begin;
+ iface->do_page = tiff_document_ps_export_do_page;
+ iface->end = tiff_document_ps_export_end;
+}
static void
tiff_document_init (TiffDocument *tiff_document)
{
tiff_document->n_pages = -1;
+ tiff_document->orientation = EV_ORIENTATION_PORTRAIT;
}