src/osx/spinbutt_osx.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/spinbutt_osx.cpp
   3 // Purpose:     wxSpinButton
   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_SPINBTN
  14
  15 #include "wx/spinbutt.h"
  16 #include "wx/osx/private.h"
  17
  18
  19 wxSpinButton::wxSpinButton()
  20    : wxSpinButtonBase()
  21 {
  22 }
  23
  24 bool wxSpinButton::Create( wxWindow *parent,
  25     wxWindowID id, const wxPoint& pos, const wxSize& size,
  26     long style, const wxString& name )
  27 {
  28     DontCreatePeer();
  29     if ( !wxSpinButtonBase::Create( parent, id, pos, size, style, wxDefaultValidator, name ) )
  30         return false;
  31
  32     m_min = 0;
  33     m_max = 100;
  34
  35     if (!parent)
  36         return false;
  37
  38     SetPeer(wxWidgetImpl::CreateSpinButton( this , parent, id, 0, m_min, m_max, pos, size,
  39         style, GetExtraStyle() ));
  40
  41     MacPostControlCreate( pos, size );
  42
  43     return true;
  44 }
  45
  46 wxSpinButton::~wxSpinButton()
  47 {
  48 }
  49
  50 void wxSpinButton::SetValue( int val )
  51 {
  52     GetPeer()->SetValue( val );
  53 }
  54
  55 int wxSpinButton::GetValue() const
  56 {
  57     return GetPeer()->GetValue();
  58 }
  59
  60 void wxSpinButton::SetRange(int minVal, int maxVal)
  61 {
  62     m_min = minVal;
  63     m_max = maxVal;
  64     GetPeer()->SetMaximum( maxVal );
  65     GetPeer()->SetMinimum( minVal );
  66 }
  67
  68 void wxSpinButton::SendThumbTrackEvent()
  69 {
  70     wxSpinEvent event( wxEVT_SCROLL_THUMBTRACK, GetId() );
  71     event.SetPosition( GetValue() );
  72     event.SetEventObject( this );
  73     HandleWindowEvent( event );
  74 }
  75
  76 bool wxSpinButton::OSXHandleClicked( double WXUNUSED(timestampsec) )
  77 {
  78     // all events have already been processed
  79     return true;
  80 }
  81
  82 wxSize wxSpinButton::DoGetBestSize() const
  83 {
  84     return wxSize( 16, 24 );
  85 }
  86
  87 void wxSpinButton::TriggerScrollEvent(wxEventType scrollEvent)
  88 {
  89     int inc = 0;
  90
  91     if ( scrollEvent == wxEVT_SCROLL_LINEUP )
  92     {
  93         inc = 1;
  94     }
  95     else if ( scrollEvent == wxEVT_SCROLL_LINEDOWN )
  96     {
  97         inc = -1;
  98     }
  99
 100     // trigger scroll events
 101
 102     int oldValue = GetValue() ;
 103
 104     int newValue = oldValue + inc;
 105
 106     if (newValue < m_min)
 107     {
 108         if ( m_windowStyle & wxSP_WRAP )
 109             newValue = m_max;
 110         else
 111             newValue = m_min;
 112     }
 113
 114     if (newValue > m_max)
 115     {
 116         if ( m_windowStyle & wxSP_WRAP )
 117             newValue = m_min;
 118         else
 119             newValue = m_max;
 120     }
 121
 122     if ( newValue - oldValue == -1 )
 123         scrollEvent = wxEVT_SCROLL_LINEDOWN;
 124     else if ( newValue - oldValue == 1 )
 125         scrollEvent = wxEVT_SCROLL_LINEUP;
 126     else
 127         scrollEvent = wxEVT_SCROLL_THUMBTRACK;
 128
 129     // Do not send an event if the value has not actually changed
 130     // (Also works for wxSpinCtrl)
 131     if ( newValue == oldValue )
 132         return;
 133
 134     if ( scrollEvent != wxEVT_SCROLL_THUMBTRACK )
 135     {
 136         wxSpinEvent event( scrollEvent, m_windowId );
 137
 138         event.SetPosition( newValue );
 139         event.SetEventObject( this );
 140         if ((HandleWindowEvent( event )) && !event.IsAllowed())
 141             newValue = oldValue;
 142     }
 143
 144     GetPeer()->SetValue( newValue );
 145
 146     // always send a thumbtrack event
 147     SendThumbTrackEvent() ;
 148 }
 149
 150 #endif // wxUSE_SPINBTN