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Fix problem with images referenced within svg files. (bug#19373)

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Fixes: debbugs:19373

* src/image.c: Additional parameter 'filename' for
svg_load_image. Include "buffer.h".  Define library function
rsvg_handle_set_base_uri for WINDOWSNT.
(init_svg_functions): Initialize rsvg_handle_set_base_uri.
(fn_rsvg_handle_set_base_uri): Define fn_rsvg_handle_set_base_uri.
(svg_load): Pass a filename to svg_load_image: either name of
actual file or of current buffer's file.
(svg_load_image): New parameter 'filename', used for setting
base_uri, necessary for loading referenced images.
This commit is contained in:
Ulf Jasper 2014-12-17 20:50:12 +01:00
parent 72ef8d7639
commit 197a9e0c9e
2 changed files with 32 additions and 5 deletions
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14
src/ChangeLog
View File

@ -1,3 +1,17 @@
2014-12-17 Ulf Jasper <ulf.jasper@web.de>
Fix problem with images referenced within svg files. (bug#19373)
* image.c: Additional parameter 'filename' for
svg_load_image. Include "buffer.h". Define library function
rsvg_handle_set_base_uri for WINDOWSNT.
(init_svg_functions): Initialize rsvg_handle_set_base_uri.
(fn_rsvg_handle_set_base_uri): Define fn_rsvg_handle_set_base_uri.
(svg_load): Pass a filename to svg_load_image: either name of
actual file or of current buffer's file.
(svg_load_image): New parameter 'filename', used for setting
base_uri, necessary for loading referenced images. (bug#19373)
2014-12-16 Paul Eggert <eggert@cs.ucla.edu>
* lread.c (init_obarray): Declare Qt as special.

23
src/image.c
View File

@ -33,6 +33,7 @@ along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#include "lisp.h"
#include "frame.h"
#include "window.h"
#include "buffer.h"
#include "dispextern.h"
#include "blockinput.h"
#include "systime.h"
@ -8600,7 +8601,7 @@ static bool svg_image_p (Lisp_Object object);
static bool svg_load (struct frame *f, struct image *img);
static bool svg_load_image (struct frame *, struct image *,
unsigned char *, ptrdiff_t);
unsigned char *, ptrdiff_t, char*);
/* The symbol `svg' identifying images of this type. */
@ -8688,6 +8689,7 @@ DEF_IMGLIB_FN (void, rsvg_handle_get_dimensions, (RsvgHandle *, RsvgDimensionDat
DEF_IMGLIB_FN (gboolean, rsvg_handle_write, (RsvgHandle *, const guchar *, gsize, GError **));
DEF_IMGLIB_FN (gboolean, rsvg_handle_close, (RsvgHandle *, GError **));
DEF_IMGLIB_FN (GdkPixbuf *, rsvg_handle_get_pixbuf, (RsvgHandle *));
DEF_IMGLIB_FN (void, rsvg_handle_set_base_uri, (RsvgHandle *, const char *));
DEF_IMGLIB_FN (int, gdk_pixbuf_get_width, (const GdkPixbuf *));
DEF_IMGLIB_FN (int, gdk_pixbuf_get_height, (const GdkPixbuf *));
@ -8727,6 +8729,7 @@ init_svg_functions (void)
LOAD_IMGLIB_FN (library, rsvg_handle_write);
LOAD_IMGLIB_FN (library, rsvg_handle_close);
LOAD_IMGLIB_FN (library, rsvg_handle_get_pixbuf);
LOAD_IMGLIB_FN (library, rsvg_handle_set_base_uri);
LOAD_IMGLIB_FN (gdklib, gdk_pixbuf_get_width);
LOAD_IMGLIB_FN (gdklib, gdk_pixbuf_get_height);
@ -8754,6 +8757,7 @@ init_svg_functions (void)
#define fn_rsvg_handle_write rsvg_handle_write
#define fn_rsvg_handle_close rsvg_handle_close
#define fn_rsvg_handle_get_pixbuf rsvg_handle_get_pixbuf
#define fn_rsvg_handle_set_base_uri rsvg_handle_set_base_uri
#define fn_gdk_pixbuf_get_width gdk_pixbuf_get_width
#define fn_gdk_pixbuf_get_height gdk_pixbuf_get_height
@ -8803,14 +8807,14 @@ svg_load (struct frame *f, struct image *img)
return 0;
}
/* If the file was slurped into memory properly, parse it. */
success_p = svg_load_image (f, img, contents, size);
success_p = svg_load_image (f, img, contents, size, SSDATA(file));
xfree (contents);
}
/* Else its not a file, its a lisp object. Load the image from a
lisp object rather than a file. */
else
{
Lisp_Object data;
Lisp_Object data, original_filename;
data = image_spec_value (img->spec, QCdata, NULL);
if (!STRINGP (data))
@ -8818,7 +8822,9 @@ svg_load (struct frame *f, struct image *img)
image_error ("Invalid image data `%s'", data, Qnil);
return 0;
}
success_p = svg_load_image (f, img, SDATA (data), SBYTES (data));
original_filename = BVAR (current_buffer, filename);
success_p = svg_load_image (f, img, SDATA (data), SBYTES (data),
SDATA(original_filename));
}
return success_p;
@ -8835,7 +8841,8 @@ static bool
svg_load_image (struct frame *f, /* Pointer to emacs frame structure. */
struct image *img, /* Pointer to emacs image structure. */
unsigned char *contents, /* String containing the SVG XML data to be parsed. */
ptrdiff_t size) /* Size of data in bytes. */
ptrdiff_t size, /* Size of data in bytes. */
char *filename) /* Name of SVG file being loaded. */
{
RsvgHandle *rsvg_handle;
RsvgDimensionData dimension_data;
@ -8860,6 +8867,12 @@ svg_load_image (struct frame *f, /* Pointer to emacs frame structure. *
/* Make a handle to a new rsvg object. */
rsvg_handle = fn_rsvg_handle_new ();
/* Set base_uri for properly handling referenced images (via 'href').
See rsvg bug 596114 - "image refs are relative to curdir, not .svg file"
(https://bugzilla.gnome.org/show_bug.cgi?id=596114). */
if (filename)
fn_rsvg_handle_set_base_uri(rsvg_handle, filename);
/* Parse the contents argument and fill in the rsvg_handle. */
fn_rsvg_handle_write (rsvg_handle, contents, size, &err);
if (err) goto rsvg_error;