Symbolizers may visually compare two symbols

[leo.git] / sym-text.c

diff --git a/sym-text.c b/sym-text.c
index 9f61f7d376443a1d0e3fee0f910e13f40520ca21..8acfe4b0a1565683b658173c6a49da8b413c61ec 100644 (file)
--- a/sym-text.c
+++ b/sym-text.c
@@ -234,6 +234,13 @@ static struct symbol * sym_text_copy(struct symbol *sym)
   return (struct symbol *) new;
 }
 
+static bool sym_text_look_same(struct symbol *s1, struct symbol *s2)
+{
+  struct sym_text *st1 = (struct sym_text *) s1;
+  struct sym_text *st2 = (struct sym_text *) s2;
+  return (st1->text == st2->text && st1->text_color == st2->text_color);
+}
+
 static void sym_text_draw(struct symbol *sym, struct svg *svg)
 {
   struct sym_text *t = (struct sym_text *) sym;
@@ -545,6 +552,7 @@ struct symbolizer symbolizer_text = {
   .gen = sym_text_gen,
   .init = sym_text_init,
   .copy = sym_text_copy,
+  .look_same = sym_text_look_same,
 };
 
 struct sym_text *sym_text_new(struct osm_object *o)