src/mac/scrolbar.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        scrolbar.cpp
   3 // Purpose:     wxScrollBar
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "scrolbar.h"
  14 #endif
  15
  16 #include "wx/scrolbar.h"
  17 #include "wx/mac/uma.h"
  18
  19 #if !USE_SHARED_LIBRARY
  20 IMPLEMENT_DYNAMIC_CLASS(wxScrollBar, wxControl)
  21
  22 BEGIN_EVENT_TABLE(wxScrollBar, wxControl)
  23 END_EVENT_TABLE()
  24
  25 #endif
  26
  27 extern ControlActionUPP wxMacLiveScrollbarActionUPP ;
  28
  29 // Scrollbar
  30 bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
  31            const wxPoint& pos,
  32            const wxSize& size, long style,
  33            const wxValidator& validator,
  34            const wxString& name)
  35 {
  36   if (!parent)
  37       return FALSE;
  38
  39         Rect bounds ;
  40         Str255 title ;
  41
  42         MacPreControlCreate( parent , id ,  "" , pos , size ,style, validator , name , &bounds , title ) ;
  43
  44         m_macControl = UMANewControl( parent->GetMacRootWindow() , &bounds , title , true , 0 , 0 , 100,
  45                 kControlScrollBarLiveProc , (long) this ) ;
  46
  47         wxASSERT_MSG( m_macControl != NULL , "No valid mac control" ) ;
  48
  49         ::SetControlAction( m_macControl , wxMacLiveScrollbarActionUPP ) ;
  50
  51         MacPostControlCreate() ;
  52
  53   return TRUE;
  54 }
  55
  56 wxScrollBar::~wxScrollBar()
  57 {
  58 }
  59
  60 void wxScrollBar::SetThumbPosition(int viewStart)
  61 {
  62     ::SetControlValue( m_macControl , viewStart ) ;
  63 }
  64
  65 int wxScrollBar::GetThumbPosition() const
  66 {
  67     return ::GetControlValue( m_macControl ) ;
  68 }
  69
  70 void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageSize,
  71     bool refresh)
  72 {
  73     m_viewSize = pageSize;
  74     m_pageSize = thumbSize;
  75     m_objectSize = range;
  76
  77         int range1 = wxMax((m_objectSize - m_pageSize), 0) ;
  78
  79     SetControlMaximum( m_macControl , range1 ) ;
  80     SetControlMinimum(  m_macControl , 0 ) ;
  81     SetControlValue(  m_macControl , position ) ;
  82
  83     if ( UMAGetAppearanceVersion() >= 0x0110  )
  84     {
  85         if ( SetControlViewSize != (void*) kUnresolvedCFragSymbolAddress )
  86         {
  87                         SetControlViewSize( m_macControl , m_pageSize ) ;
  88         }
  89     }
  90     Refresh() ;
  91 }
  92
  93
  94 void wxScrollBar::Command(wxCommandEvent& event)
  95 {
  96     SetThumbPosition(event.m_commandInt);
  97     ProcessCommand(event);
  98 }
  99
 100 void wxScrollBar::MacHandleControlClick( ControlHandle control , SInt16 controlpart )
 101 {
 102         if ( m_macControl == NULL )
 103                 return ;
 104
 105   int position = GetControlValue( m_macControl) ;
 106   int minPos = GetControlMinimum( m_macControl) ;
 107   int maxPos = GetControlMaximum( m_macControl) ;
 108
 109   wxEventType scrollEvent = wxEVT_NULL;
 110   int nScrollInc;
 111
 112         switch( controlpart )
 113         {
 114                 case kControlUpButtonPart :
 115         nScrollInc = -1;
 116         scrollEvent = wxEVT_SCROLL_LINEUP;
 117                         break ;
 118                 case kControlDownButtonPart :
 119         nScrollInc = 1;
 120         scrollEvent = wxEVT_SCROLL_LINEDOWN;
 121                         break ;
 122                 case kControlPageUpPart :
 123         nScrollInc = -m_pageSize;
 124         scrollEvent = wxEVT_SCROLL_PAGEUP;
 125                         break ;
 126                 case kControlPageDownPart :
 127         nScrollInc = m_pageSize;
 128         scrollEvent = wxEVT_SCROLL_PAGEDOWN;
 129                         break ;
 130                 case kControlIndicatorPart :
 131         nScrollInc = 0 ;
 132         scrollEvent = wxEVT_SCROLL_THUMBTRACK;
 133                         break ;
 134         }
 135
 136   int new_pos = position + nScrollInc;
 137
 138   if (new_pos < 0)
 139       new_pos = 0;
 140   if (new_pos > maxPos)
 141       new_pos = maxPos;
 142         if ( nScrollInc )
 143         SetThumbPosition(new_pos);
 144
 145   wxScrollEvent event(scrollEvent, m_windowId);
 146         if ( m_windowStyle & wxHORIZONTAL )
 147         {
 148                 event.SetOrientation( wxHORIZONTAL ) ;
 149         }
 150         else
 151         {
 152                 event.SetOrientation( wxVERTICAL ) ;
 153         }
 154   event.SetPosition(new_pos);
 155   event.SetEventObject( this );
 156   wxWindow* window = GetParent() ;
 157   if (window && window->MacIsWindowScrollbar(this) )
 158   {
 159         // this is hardcoded
 160         window->MacOnScroll(event);
 161   }
 162   else
 163         GetEventHandler()->ProcessEvent(event);
 164 }
 165