X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;f=tiff%2Ftiff-document.c;h=9f465a7c5fc2293aa381cec4e530edc5e30fa259;hb=2fcdb759f53fee8ccca7eaa3d67743cc8d42b0fc;hp=5c8cc8d4bac0ea3c22e6d4de64206ba387b2467d;hpb=dbf6fafd2939f4ff959d2eff4181f880ebd7ceaf;p=evince.git diff --git a/tiff/tiff-document.c b/tiff/tiff-document.c index 5c8cc8d4..9f465a7c 100644 --- a/tiff/tiff-document.c +++ b/tiff/tiff-document.c @@ -1,4 +1,3 @@ - /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */ /* * Copyright (C) 2005, Jonathan Blandford @@ -18,12 +17,18 @@ * 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 +#include + #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 { @@ -36,18 +41,24 @@ struct _TiffDocument TIFF *tiff; gint n_pages; + TIFF2PSContext *ps_export_ctx; + + gchar *uri; }; 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; @@ -77,7 +88,6 @@ tiff_document_load (EvDocument *document, TIFF *tiff; push_handlers (); - /* FIXME: We could actually load uris */ filename = g_filename_from_uri (uri, NULL, error); if (!filename) { @@ -89,7 +99,7 @@ tiff_document_load (EvDocument *document, if (tiff) { guint32 w, h; - + /* FIXME: unused data? why bother here */ TIFFGetField(tiff, TIFFTAG_IMAGEWIDTH, &w); TIFFGetField(tiff, TIFFTAG_IMAGELENGTH, &h); } @@ -99,6 +109,9 @@ tiff_document_load (EvDocument *document, return FALSE; } tiff_document->tiff = tiff; + g_free (tiff_document->uri); + g_free (filename); + tiff_document->uri = g_strdup (uri); pop_handlers (); return TRUE; @@ -108,8 +121,10 @@ static gboolean tiff_document_save (EvDocument *document, const char *uri, GError **error) -{ - return FALSE; +{ + TiffDocument *tiff_document = TIFF_DOCUMENT (document); + + return ev_xfer_uri_simple (tiff_document->uri, uri, error); } static int @@ -142,6 +157,7 @@ tiff_document_get_page_size (EvDocument *document, double *height) { guint32 w, h; + gfloat x_res, y_res; TiffDocument *tiff_document = TIFF_DOCUMENT (document); g_return_if_fail (TIFF_IS_DOCUMENT (document)); @@ -156,44 +172,101 @@ tiff_document_get_page_size (EvDocument *document, 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 (); } 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; } - TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGEWIDTH, &width); - TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGELENGTH, &height); + 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; + + 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 = gdk_pixbuf_rotate_simple (scaled_pixbuf, 360 - rc->rotation); + g_object_unref (scaled_pixbuf); + + return rotated_pixbuf; } static void @@ -202,6 +275,7 @@ tiff_document_finalize (GObject *object) TiffDocument *tiff_document = TIFF_DOCUMENT (object); TIFFClose (tiff_document->tiff); + g_free (tiff_document->uri); G_OBJECT_CLASS (tiff_document_parent_class)->finalize (object); } @@ -246,9 +320,11 @@ tiff_document_document_iface_init (EvDocumentIface *iface) static GdkPixbuf * tiff_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document, gint page, + gint rotation, gint size, gboolean border) { + EvRenderContext *rc; GdkPixbuf *pixbuf; gdouble w, h; @@ -256,14 +332,14 @@ tiff_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document, page, &w, &h); - pixbuf = tiff_document_render_pixbuf (EV_DOCUMENT (document), - page, - size/w); + 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, tmp_pixbuf); + pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, 0, tmp_pixbuf); g_object_unref (tmp_pixbuf); } @@ -296,6 +372,48 @@ tiff_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface) 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, + double width, double height, gboolean duplex) +{ + TiffDocument *document = TIFF_DOCUMENT (exporter); + + document->ps_export_ctx = tiff2ps_context_new(filename); +} + +static void +tiff_document_ps_export_do_page (EvPSExporter *exporter, EvRenderContext *rc) +{ + TiffDocument *document = TIFF_DOCUMENT (exporter); + + if (document->ps_export_ctx == NULL) + return; + if (TIFFSetDirectory (document->tiff, rc->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)