Show panner drag information tool-tip style, and also show

[ardour.git] / gtk2_ardour / panner_interface.cc

diff --git a/gtk2_ardour/panner_interface.cc b/gtk2_ardour/panner_interface.cc
index 95e1e4e7ffcec653312779424447971f6149e963..53a7535f4d2181e9d5a4897590f3e69b3f116430 100644 (file)
--- a/gtk2_ardour/panner_interface.cc
+++ b/gtk2_ardour/panner_interface.cc
@@ -24,6 +24,7 @@
 
 #include "i18n.h"
 
+using namespace std;
 using namespace Gtk;
 using namespace ARDOUR;
 using namespace Gtkmm2ext;
@@ -32,6 +33,7 @@ PannerInterface::PannerInterface (boost::shared_ptr<Panner> p)
        : _panner (p)
        , _drag_data_window (0)
        , _drag_data_label (0)
+        , _dragging (false)
 {
         set_flags (Gtk::CAN_FOCUS);
 
@@ -69,6 +71,8 @@ PannerInterface::show_drag_data_window ()
                        _drag_data_window->set_transient_for (*toplevel);
                }
        }
+
+       set_drag_data ();
        
         if (!_drag_data_window->is_visible ()) {
                 /* move the window a little away from the mouse */
@@ -79,11 +83,29 @@ PannerInterface::show_drag_data_window ()
         }
 }
 
+void
+PannerInterface::hide_drag_data_window ()
+{
+        if (_drag_data_window) {
+                _drag_data_window->hide ();
+        }
+}
+
 bool
 PannerInterface::on_enter_notify_event (GdkEventCrossing *)
 {
        grab_focus ();
        Keyboard::magic_widget_grab_focus ();
+
+       _drag_data_timeout = Glib::signal_timeout().connect (sigc::mem_fun (*this, &PannerInterface::drag_data_timeout), 500);
+       
+       return false;
+}
+
+bool
+PannerInterface::drag_data_timeout ()
+{
+       show_drag_data_window ();
        return false;
 }
 
@@ -91,6 +113,12 @@ bool
 PannerInterface::on_leave_notify_event (GdkEventCrossing *)
 {
        Keyboard::magic_widget_drop_focus ();
+
+       _drag_data_timeout.disconnect ();
+       if (!_dragging) {
+               hide_drag_data_window ();
+       }
+       
        return false;
 }