src/osx/carbon/spinbutt.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        spinbutt.cpp
   3 // Purpose:     wxSpinButton
   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_SPINBTN
  15
  16 #include "wx/spinbutt.h"
  17 #include "wx/osx/private.h"
  18
  19
  20 wxWidgetImplType* wxWidgetImpl::CreateSpinButton( wxWindowMac* wxpeer,
  21                                     wxWindowMac* parent,
  22                                     wxWindowID id,
  23                                     wxInt32 value,
  24                                     wxInt32 minimum,
  25                                     wxInt32 maximum,
  26                                     const wxPoint& pos,
  27                                     const wxSize& size,
  28                                     long style,
  29                                     long extraStyle)
  30 {
  31     Rect bounds = wxMacGetBoundsForControl( wxpeer , pos , size );
  32
  33     wxMacControl* peer = new wxMacControl( wxpeer );
  34     OSStatus err = CreateLittleArrowsControl(
  35         MAC_WXHWND(parent->MacGetTopLevelWindowRef()), &bounds, value,
  36         minimum, maximum, 1, peer->GetControlRefAddr() );
  37     verify_noerr( err );
  38
  39     peer->SetActionProc( GetwxMacLiveScrollbarActionProc() );
  40     return peer ;
  41 }
  42
  43 void wxSpinButton::MacHandleControlClick(WXWidget WXUNUSED(control),
  44                                          wxInt16 controlpart,
  45                                          bool WXUNUSED(mouseStillDown))
  46 {
  47     int inc = 0;
  48
  49     switch ( controlpart )
  50     {
  51     case kControlUpButtonPart :
  52         inc = 1;
  53         break;
  54
  55     case kControlDownButtonPart :
  56         inc = -1;
  57         break;
  58
  59     default:
  60         break;
  61     }
  62
  63     // trigger scroll events
  64
  65     wxEventType scrollEvent = wxEVT_NULL;
  66     int oldValue = GetValue() ;
  67
  68     int newValue = oldValue + inc;
  69
  70     if (newValue < m_min)
  71     {
  72         if ( m_windowStyle & wxSP_WRAP )
  73             newValue = m_max;
  74         else
  75             newValue = m_min;
  76     }
  77
  78     if (newValue > m_max)
  79     {
  80         if ( m_windowStyle & wxSP_WRAP )
  81             newValue = m_min;
  82         else
  83             newValue = m_max;
  84     }
  85
  86     if ( newValue - oldValue == -1 )
  87         scrollEvent = wxEVT_SCROLL_LINEDOWN;
  88     else if ( newValue - oldValue == 1 )
  89         scrollEvent = wxEVT_SCROLL_LINEUP;
  90     else
  91         scrollEvent = wxEVT_SCROLL_THUMBTRACK;
  92
  93     // Do not send an event if the value has not actually changed
  94     // (Also works for wxSpinCtrl)
  95     if ( newValue == oldValue )
  96         return;
  97
  98     if ( scrollEvent != wxEVT_SCROLL_THUMBTRACK )
  99     {
 100         wxSpinEvent event( scrollEvent, m_windowId );
 101
 102         event.SetPosition( newValue );
 103         event.SetEventObject( this );
 104         if ((HandleWindowEvent( event )) && !event.IsAllowed())
 105             newValue = oldValue;
 106     }
 107
 108     m_peer->SetValue( newValue );
 109
 110     // always send a thumbtrack event
 111     SendThumbTrackEvent() ;
 112 }
 113
 114 #endif // wxUSE_SPINBTN