Support saving of instrument definitions.

gui/ui.fl

@@ -137,7 +137,7 @@ if ( Fl::event() == FL_SHORTCUT && Fl::event_key() == FL_Escape )
 
 if ( maybe_save_song() )
 	quit();} open
-      xywh {773 244 869 801} type Single box PLASTIC_UP_BOX color 37 resizable xclass non size_range {869 801 0 0} visible
+      xywh {699 154 869 801} type Single box PLASTIC_UP_BOX color 37 resizable xclass non size_range {869 801 0 0} visible
     } {
       Fl_Menu_Bar {} {open
         xywh {0 0 869 30} color 37
@@ -1017,7 +1017,7 @@ You should have received a copy of the GNU General Public License along with thi
   Function {make_randomization_dialog()} {} {
     Fl_Window randomization_dialog {
       label {Randomization Settings} open
-      xywh {740 128 342 98} type Double
+      xywh {656 39 342 98} type Double
       code0 {// feel->value( )}
       code1 {probability->value( song.random.probability );} non_modal visible
     } {
@@ -1054,7 +1054,7 @@ You should have received a copy of the GNU General Public License along with thi
   } {
     Fl_Window instrument_edit_dialog {
       label {Instrument Edit} open
-      xywh {669 299 338 191} type Double modal visible
+      xywh {1006 27 338 191} type Double modal visible
     } {
       Fl_Box {} {
         label {Instrument Row}
@@ -1062,7 +1062,7 @@ You should have received a copy of the GNU General Public License along with thi
       }
       Fl_Input instrument_name_field {
         label Name
-        callback {instrument_edit_dialog->hide();} selected
+        callback {instrument_edit_dialog->hide();}
         xywh {10 70 321 25} selection_color 48 align 1 when 8 textcolor 32
       }
       Fl_Value_Slider instrument_volume_slider {
@@ -1311,7 +1311,11 @@ while( instrument_edit_dialog->shown() )
 	Fl::wait();
 	
 i->note_name( n, strdup( instrument_name_field->value() ) );
-i->velocity( n, instrument_volume_slider->value() );} {}
+i->velocity( n, instrument_volume_slider->value() );
+
+
+i->save();} {selected
+    }
   }
 } 
 

instrument.C

@@ -101,12 +101,16 @@ Instrument::note_name ( int n, char *s )
         free( _map[ n ].name );
 
     _map[ n ].name = s;
+
+    _dirty = true;
 }
 
 void
 Instrument::velocity ( int n, int v )
 {
     _map[ n ].velocity = v;
+
+    _dirty = true;
 }
 
 /* Should only be passed NOTE ON/OFF events! */
@@ -219,6 +223,15 @@ Instrument::write ( const char *s ) const
     return true;
 }
 
+void
+Instrument::save ( void ) const
+{
+    if ( _dirty )
+        write( _name );
+
+    _dirty = false;
+}
+
 static int
 instrument_filter ( const struct dirent *d )
 {

instrument.H

@@ -36,6 +36,7 @@ class Instrument
 
     char *_name;
     int _height;
+    mutable bool _dirty;
 
     struct i_map _map[128];                                     /* note / velocity mappings */
 
@@ -60,4 +61,6 @@ public:
     const char * name ( void ) const;
     int velocity ( int n ) const;
 
+    void save ( void ) const;
+
 };