[gnumeric] xlsx: dump images into the archive.

[Morten Welinder <mortenw src gnome org>]

commit 82d410524042a930aa134d2c1950233a0745465f
Author: Morten Welinder <terra gnome org>
Date:   Sat Feb 28 17:30:34 2015 -0500

    xlsx: dump images into the archive.
    
    The object still gets lost, though.

 plugins/excel/xlsx-write-drawing.c |   28 ++++++++++++++++++++++++++++
 1 files changed, 28 insertions(+), 0 deletions(-)
---
diff --git a/plugins/excel/xlsx-write-drawing.c b/plugins/excel/xlsx-write-drawing.c
index ff7d312..6a7f8b8 100644
--- a/plugins/excel/xlsx-write-drawing.c
+++ b/plugins/excel/xlsx-write-drawing.c
@@ -1243,6 +1243,32 @@ xlsx_write_drawing_objects (XLSXWriteState *state, GsfOutput *sheet_part,
                        xlsx_write_chart (state, chart_part, so);
                        gsf_output_close (chart_part);
                        g_object_unref (chart_part);
+               } else if (GNM_IS_SO_IMAGE (so)) {
+                       const char *ext;
+                       char *name, *mime_type;
+                       GsfOutput *image_part;
+                       GOImage *image;
+                       GOImageFormatInfo const *info;
+
+                       g_object_get (so, "image", &image, NULL);
+                       info = go_image_get_info (image);
+
+                       ext = info ? info->ext : "image";
+                       mime_type = info ? go_image_format_to_mime (info->name) : NULL;
+                       name = g_strdup_printf ("image%u.%s", ++state->media_dir.count, ext);
+                       image_part = gsf_outfile_new_child_full
+                               (xlsx_dir_get (&state->media_dir), name, FALSE,
+                                "content-type", (mime_type ? mime_type : "image"),
+                                NULL);
+                       rId1 = gsf_outfile_open_pkg_relate (GSF_OUTFILE_OPEN_PKG (image_part),
+                                                           GSF_OUTFILE_OPEN_PKG (drawing_part),
+                                                           ns_rel_chart);
+                       sheet_object_write_image (so, NULL, -1, image_part, NULL);
+                       gsf_output_close (image_part);
+                       g_object_unref (image_part);
+                       g_free (name);
+                       g_free (mime_type);
+                       g_object_unref (image);
                } else {
                        /* Lines etc. go here.  */
                        rId1 = NULL;
@@ -1319,6 +1345,8 @@ xlsx_write_drawing_objects (XLSXWriteState *state, GsfOutput *sheet_part,
                        gsf_xml_out_end_element (xml); /* </a:graphicData> */
                        gsf_xml_out_end_element (xml); /* </a:graphic> */
                        gsf_xml_out_end_element (xml); /* </xdr:graphicFrame> */
+               } else if (GNM_IS_SO_IMAGE (so)) {
+                       /* What? */
                } else if (IS_GNM_SO_LINE (so) ||
                           IS_GNM_SO_FILLED (so)) {
                        GOStyle *style = NULL;