Fixed tooltip issue on Windows.

src/source.cc

@@ -794,6 +794,7 @@ void Source::ClangViewParse::update_types() {
 }
 
 bool Source::ClangViewParse::on_motion_notify_event(GdkEventMotion* event) {
+  if(on_motion_last_x!=event->x || on_motion_last_y!=event->y) {
     delayed_tooltips_connection.disconnect();
     if(clang_readable && event->state==0) {
       Gdk::Rectangle rectangle(event->x, event->y, 1, 1);
@@ -805,7 +806,9 @@ bool Source::ClangViewParse::on_motion_notify_event(GdkEventMotion* event) {
       type_tooltips.hide();
       diagnostic_tooltips.hide();
     }
-    
+  }
+  on_motion_last_x=event->x;
+  on_motion_last_y=event->y;
   return Source::View::on_motion_notify_event(event);
 }
 

src/source.h

@@ -132,6 +132,8 @@ namespace Source {
     Tooltips diagnostic_tooltips;
     Tooltips type_tooltips;
     bool on_motion_notify_event(GdkEventMotion* event);
+    gdouble on_motion_last_x;
+    gdouble on_motion_last_y;
     void on_mark_set(const Gtk::TextBuffer::iterator& iterator, const Glib::RefPtr<Gtk::TextBuffer::Mark>& mark);
     
     bool on_scroll_event(GdkEventScroll* event);