change the speaker into a mute/unmute button

(only works if something is playing ... and we have to fix the bug where
the image doesn't get updated like for the play/pause button)

modules/gui/wxwindows/bitmaps/speaker_mute.xpm

+/* XPM */
+static char * speaker_mute_xpm[] = {
+"16 16 50 1",
+" 	c None",
+".	c #000000",
+"+	c #FF0000",
+"@	c #FB0400",
+"#	c #E81717",
+"$	c #880000",
+"%	c #8D7272",
+"&	c #966900",
+"*	c #FFF700",
+"=	c #837B7B",
+"-	c #966969",
+";	c #FF1B1B",
+">	c #DA2400",
+",	c #FFFF00",
+"'	c #FFFFFF",
+")	c #FFF3F3",
+"!	c #D22D2D",
+"~	c #808000",
+"{	c #B64800",
+"]	c #FF2424",
+"^	c #FFDF00",
+"/	c #808080",
+"(	c #A55900",
+"_	c #FF9797",
+":	c #FF0300",
+"<	c #FF3939",
+"[	c #230000",
+"}	c #867800",
+"|	c #FF9999",
+"1	c #FF0900",
+"2	c #DD0000",
+"3	c #FF9292",
+"4	c #D82727",
+"5	c #807E7E",
+"6	c #4C0000",
+"7	c #650000",
+"8	c #DB0000",
+"9	c #FF6D6D",
+"0	c #FF5454",
+"a	c #FF6565",
+"b	c #817D7D",
+"c	c #FFFBFB",
+"d	c #FF7474",
+"e	c #E11D1D",
+"f	c #2D0000",
+"g	c #837B00",
+"h	c #FF8A8A",
+"i	c #FA0404",
+"j	c #F70000",
+"k	c #E81700",
+"         ..     ",
+"     +++@#$%    ",
+"    ++++++++    ",
+"   +++&*=- ;+   ",
+"  +++>,'. ')!+  ",
+" ++~{+]^. ''/++ ",
+" +(' _:<[.''/ + ",
+" +}, ,|12 .'/ + ",
+" +}, ',3+45'/ + ",
+" +6~/,',789'/ + ",
+" ++..~,'. 0ab++ ",
+"  ++ .~,. cde+  ",
+"   ++ fg=-h;+   ",
+"    +++++++i    ",
+"     +++jk$%    ",
+"         ..     "};

modules/gui/wxwindows/interface.cpp

@@ -43,6 +43,7 @@
 #include "bitmaps/fast.xpm"
 #include "bitmaps/playlist.xpm"
 #include "bitmaps/speaker.xpm"
+#include "bitmaps/speaker_mute.xpm"
 
 #define TOOLBAR_BMP_WIDTH 16
 #define TOOLBAR_BMP_HEIGHT 16
@@ -142,6 +143,7 @@ enum
     NextStream_Event,
     SlowStream_Event,
     FastStream_Event,
+    Mute_Event,
 
     DiscMenu_Event,
     DiscPrev_Event,
@@ -192,6 +194,7 @@ BEGIN_EVENT_TABLE(Interface, wxFrame)
     EVT_MENU(NextStream_Event, Interface::OnNextStream)
     EVT_MENU(SlowStream_Event, Interface::OnSlowStream)
     EVT_MENU(FastStream_Event, Interface::OnFastStream)
+    EVT_MENU(Mute_Event, Interface::OnMute)
 
     /* Disc Buttons events */
     EVT_BUTTON(DiscMenu_Event, Interface::OnDiscMenu)
@@ -433,15 +436,12 @@ public:
     VLCVolCtrl( intf_thread_t *p_intf, wxWindow *p_parent, wxGauge ** );
     virtual ~VLCVolCtrl() {};
 
-    virtual void OnPaint( wxPaintEvent &event );
-
   private:
     DECLARE_EVENT_TABLE()
     int i_y_offset;
 };
 
 BEGIN_EVENT_TABLE(VLCVolCtrl, wxControl)
-   EVT_PAINT(VLCVolCtrl::OnPaint)
 END_EVENT_TABLE()
 
 #if defined(__WXGTK__)
@@ -459,13 +459,6 @@ VLCVolCtrl::VLCVolCtrl( intf_thread_t *p_intf, wxWindow *p_parent,
                                  wxSize( 44, TOOLBAR_BMP_HEIGHT ) );
 }
 
-void VLCVolCtrl::OnPaint( wxPaintEvent &evt )
-{
-    wxPaintDC dc( this );
-    wxBitmap mPlayBitmap( speaker_xpm );
-    dc.DrawBitmap( mPlayBitmap, 0, i_y_offset, TRUE );
-}
-
 void Interface::CreateOurToolBar()
 {
 #define HELP_OPEN N_("Open")
@@ -477,6 +470,7 @@ void Interface::CreateOurToolBar()
 #define HELP_PLN N_("Next playlist item")
 #define HELP_SLOW N_("Play slower")
 #define HELP_FAST N_("Play faster")
+#define HELP_MUTE N_("Toggle mute")
 
     wxLogNull LogDummy; /* Hack to suppress annoying log message on the win32
                          * version because we don't include wx.rc */
@@ -515,6 +509,8 @@ void Interface::CreateOurToolBar()
 
     toolbar->AddControl( p_dummy_ctrl );
 
+    toolbar->AddTool( Mute_Event, wxT(""), wxBitmap( speaker_xpm ),
+                      wxU(_(HELP_MUTE)) );
     VLCVolCtrl *sound_control = new VLCVolCtrl( p_intf, toolbar, &volctrl );
     toolbar->AddControl( sound_control );
 
@@ -1201,6 +1197,31 @@ void Interface::OnDiscNext( wxCommandEvent& WXUNUSED(event) )
     }
 }
 
+void Interface::OnMute( wxCommandEvent& WXUNUSED(event) )
+{
+    int i_volume = 1;
+    aout_VolumeMute( p_intf, (audio_volume_t *)&i_volume );
+
+    wxToolBarToolBase *p_tool = (wxToolBarToolBase *)
+        GetToolBar()->GetToolClientData( Mute_Event );
+    if( !p_tool ) return;
+
+    if( i_volume >= 0 )
+    {
+        p_tool->SetNormalBitmap( wxBitmap( speaker_xpm ) );
+        p_tool->SetLabel( wxU(_("")) );
+        p_tool->SetShortHelp( wxU(_(HELP_MUTE)) );
+    }
+    else
+    {
+        p_tool->SetNormalBitmap( wxBitmap( speaker_mute_xpm ) );
+        p_tool->SetLabel( wxU(_("")) );
+        p_tool->SetShortHelp( wxU(_(HELP_MUTE)) );
+    }
+
+    GetToolBar()->Realize();
+}
+
 #if wxUSE_DRAG_AND_DROP
 /*****************************************************************************
  * Definition of DragAndDrop class.

modules/gui/wxwindows/wxwindows.h

@@ -376,6 +376,7 @@ private:
     void OnNextStream( wxCommandEvent& event );
     void OnSlowStream( wxCommandEvent& event );
     void OnFastStream( wxCommandEvent& event );
+    void OnMute( wxCommandEvent& event );
 
     void OnDiscMenu( wxCommandEvent& event );
     void OnDiscPrev( wxCommandEvent& event );