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