(buffer_posn_from_coords): Return full image width

and height even for image slices (posn is relative to full image).
(marginal_area_string): Adjust x0,y0 for image slice.

diff --git a/src/dispnew.c b/src/dispnew.c
index 987562b0bef10aaa80dff135309f5f68f86fa658..5ceebdecf3483f6a9e4ef58371c8a0228cd87fe7 100644 (file)
--- a/src/dispnew.c
+++ b/src/dispnew.c
@@ -5730,6 +5730,9 @@ buffer_posn_from_coords (w, x, y, pos, object, dx, dy, width, height)
   struct text_pos startp;
   Lisp_Object string;
   struct glyph_row *row;
+#ifdef HAVE_WINDOW_SYSTEM
+  struct image *img = 0;
+#endif
   int x0, x1;
 
   current_buffer = XBUFFER (w->buffer);
@@ -5755,7 +5758,6 @@ buffer_posn_from_coords (w, x, y, pos, object, dx, dy, width, height)
 #ifdef HAVE_WINDOW_SYSTEM
   if (it.what == IT_IMAGE)
     {
-      struct image *img;
       if ((img = IMAGE_FROM_ID (it.f, it.image_id)) != NULL
          && !NILP (img->spec))
        *object = img->spec;
@@ -5768,12 +5770,22 @@ buffer_posn_from_coords (w, x, y, pos, object, dx, dy, width, height)
       if (it.hpos < row->used[TEXT_AREA])
        {
          struct glyph *glyph = row->glyphs[TEXT_AREA] + it.hpos;
-         *width = glyph->pixel_width;
-         *height = glyph->ascent + glyph->descent;
 #ifdef HAVE_WINDOW_SYSTEM
-         if (glyph->type == IMAGE_GLYPH)
-           *dy -= row->ascent - glyph->ascent;
+         if (img)
+           {
+             *dy -= row->ascent - glyph->ascent;
+             *dx += glyph->slice.x;
+             *dy += glyph->slice.y;
+             /* Image slices positions are still relative to the entire image */
+             *width = img->width;
+             *height = img->height;
+           }
+         else
 #endif
+           {
+             *width = glyph->pixel_width;
+             *height = glyph->ascent + glyph->descent;
+           }
        }
       else
        {
@@ -5939,6 +5951,8 @@ marginal_area_string (w, part, x, y, charpos, object, dx, dy, width, height)
              if (img != NULL)
                *object = img->spec;
              y0 -= row->ascent - glyph->ascent;
+             x0 += glyph->slice.x;
+             y0 += glyph->slice.y;
            }
 #endif
        }