src/osx/carbon/gauge.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        gauge.cpp
   3 // Purpose:     wxGauge class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:       wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #if wxUSE_GAUGE
  15
  16 #include "wx/gauge.h"
  17
  18 #include "wx/osx/private.h"
  19
  20 class wxMacGaugeCarbonControl : public wxMacControl
  21 {
  22 public :
  23     wxMacGaugeCarbonControl( wxWindowMac* peer ) : wxMacControl( peer )
  24     {
  25     }
  26
  27     void SetMaximum(wxInt32 v)
  28     {
  29         // switch back to determinate mode if not there already
  30         if ( GetData<Boolean>( kControlNoPart, kControlProgressBarIndeterminateTag ) != false )
  31         {
  32              SetData<Boolean>( kControlNoPart, kControlProgressBarIndeterminateTag, (Boolean)false );
  33         }
  34
  35         wxMacControl::SetMaximum( v ) ;
  36     }
  37
  38     void SetValue(wxInt32 v)
  39     {
  40         // switch back to determinate mode if not there already
  41         if ( GetData<Boolean>( kControlNoPart, kControlProgressBarIndeterminateTag ) != false )
  42         {
  43             SetData<Boolean>( kControlNoPart, kControlProgressBarIndeterminateTag, (Boolean)false );
  44         }
  45
  46         wxMacControl::SetValue( v ) ;
  47
  48         // turn off animation in the unnecessary situations as this is consuming a lot of CPU otherwise
  49         Boolean shouldAnimate = ( v > 0 && v < GetMaximum() ) ;
  50         if ( GetData<Boolean>( kControlEntireControl, kControlProgressBarAnimatingTag ) != shouldAnimate )
  51         {
  52             SetData<Boolean>( kControlEntireControl, kControlProgressBarAnimatingTag, shouldAnimate ) ;
  53             if ( !shouldAnimate )
  54                 SetNeedsDisplay(NULL) ;
  55         }
  56     }
  57
  58     void PulseGauge()
  59     {
  60         if ( GetData<Boolean>( kControlNoPart, kControlProgressBarIndeterminateTag ) != true )
  61         {
  62             SetData<Boolean>( kControlNoPart, kControlProgressBarIndeterminateTag, true);
  63         }
  64
  65         if ( GetData<Boolean>( kControlEntireControl, kControlProgressBarAnimatingTag ) != true )
  66         {
  67             SetData<Boolean>( kControlEntireControl, kControlProgressBarAnimatingTag, true ) ;
  68         }
  69     }
  70 };
  71
  72
  73 wxWidgetImplType* wxWidgetImpl::CreateGauge( wxWindowMac* wxpeer,
  74                                     wxWindowMac* parent,
  75                                     wxWindowID WXUNUSED(id),
  76                                     wxInt32 value,
  77                                     wxInt32 minimum,
  78                                     wxInt32 maximum,
  79                                     const wxPoint& pos,
  80                                     const wxSize& size,
  81                                     long WXUNUSED(style),
  82                                     long WXUNUSED(extraStyle))
  83 {
  84     Rect bounds = wxMacGetBoundsForControl( wxpeer, pos, size );
  85     wxMacGaugeCarbonControl* peer = new wxMacGaugeCarbonControl( wxpeer );
  86     OSStatus err = CreateProgressBarControl(
  87         MAC_WXHWND(parent->MacGetTopLevelWindowRef()), &bounds,
  88         value, minimum, maximum, false /* not indeterminate */, peer->GetControlRefAddr() );
  89     verify_noerr( err );
  90     if ( value == 0 )
  91         peer->SetData<Boolean>( kControlEntireControl, kControlProgressBarAnimatingTag, (Boolean)false );
  92     return peer;
  93 }
  94
  95 #endif // wxUSE_GAUGE
  96