X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;f=tiff%2Ftiff-document.c;h=36847aa45f3173cdd2fd79bf6cafdf016654336a;hb=848665b157185945d190a7a746d054d7f5d5e6e0;hp=a4c8638ab3042a4512f4e4a2841d216dff7a3077;hpb=bf2e7e1e34b8940db72a55af9f3dabcf20ebb095;p=evince.git diff --git a/tiff/tiff-document.c b/tiff/tiff-document.c index a4c8638a..36847aa4 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 { @@ -37,18 +42,22 @@ struct _TiffDocument 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; @@ -90,7 +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); } @@ -143,6 +152,7 @@ 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)); @@ -157,6 +167,9 @@ 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); if (tiff_document->orientation == EV_ORIENTATION_PORTRAIT || tiff_document->orientation == EV_ORIENTATION_UPSIDEDOWN) { @@ -205,10 +218,12 @@ rotate_pixbuf (EvDocument *document, GdkPixbuf *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; @@ -219,7 +234,7 @@ tiff_document_render_pixbuf (EvDocument *document, int page, double scale) 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; @@ -237,6 +252,18 @@ tiff_document_render_pixbuf (EvDocument *document, int page, double scale) 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 */ @@ -266,8 +293,8 @@ tiff_document_render_pixbuf (EvDocument *document, int page, double scale) 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); @@ -332,6 +359,7 @@ tiff_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document, gint size, gboolean border) { + EvRenderContext *rc; GdkPixbuf *pixbuf; gdouble w, h; @@ -339,9 +367,9 @@ 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 (EV_ORIENTATION_PORTRAIT, page, size/w); + pixbuf = tiff_document_render_pixbuf (EV_DOCUMENT (document), rc); + g_object_unref (G_OBJECT (rc)); if (border) { @@ -379,6 +407,47 @@ 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) +{ + 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)