X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=src%2Fdisplay%2Fnr-filter.h;h=267f242d1aff218beae9421929b35dd40bcf33e9;hb=61a8e3bd39889c3795adbfdf368c7a40e46292a5;hp=9f26a1f3b95fa9c3b4933d1701e288d77cac2892;hpb=aca3b339a427a3f0a8a6eec08e797e3dc458815f;p=inkscape.git

diff --git a/src/display/nr-filter.h b/src/display/nr-filter.h
index 9f26a1f3b..267f242d1 100644
--- a/src/display/nr-filter.h
+++ b/src/display/nr-filter.h
@@ -131,7 +131,7 @@ public:
 
     /**
      * Set the primitiveUnits-properterty. If not set, the default value of
-     * userSpaceOnUseis used. If the parameter value is not a valid
+     * userSpaceOnUse is used. If the parameter value is not a valid
      * enumeration value from SPFilterUnits, no changes to filter state
      * are made.
      */
@@ -150,6 +150,12 @@ public:
      * it contains the filter effect area.
      */
     void bbox_enlarge(NRRectL &bbox);
+    /**
+     * Returns the filter effects area in user coordinate system.
+     * The given bounding box should be a bounding box as specified in
+     * SVG standard and in user coordinate system.
+     */
+    Rect filter_effect_area(Rect const &bbox);
 
     /** Creates a new filter with space for one filter element */
     Filter();
@@ -160,7 +166,7 @@ public:
      */
     Filter(int n);
     /** Destroys the filter and all its primitives */
-    ~Filter();
+    virtual ~Filter();
 
 private:
     int _primitive_count;