src/osx/carbon/gauge.cpp

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