Mixer: Show peak value in tooltip on DPMs.

Mixer/DPM.C

@@ -39,6 +39,8 @@ Fl_Color DPM::_dim_gradient[128];
 DPM::DPM ( int X, int Y, int W, int H, const char *L ) :
     Meter( X, Y, W, H, L )
 {
+    tooltip( peak_string );
+
     _last_drawn_hi_segment = 0;
 
     pixels_per_segment( 4 );
@@ -111,6 +113,9 @@ DPM::resize ( int X, int Y, int W, int H )
 void
 DPM::draw ( void )
 {
+    snprintf( peak_string, sizeof( peak_string ), "%.1f", peak() );
+    tooltip( peak_string );
+
     int v = pos( value() );
     int pv = pos( peak() );
 

Mixer/DPM.H

@@ -25,6 +25,8 @@
 
 class DPM : public Meter
 {
+    char peak_string[10];
+
     int _segments;
     int _pixels_per_segment;
     int _last_drawn_hi_segment;

Mixer/Meter.H

@@ -34,8 +34,9 @@ protected:
     virtual void draw ( void ) = 0;
     virtual int handle ( int m )
         {
-
-            if ( m == FL_PUSH )
+            if ( m == FL_ENTER || m == FL_LEAVE )
+                return 1;
+            else if ( m == FL_PUSH )
             {
 //                if ( Fl::event_button3() )
 //                    hide();