src/mac/carbon/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/defs.h"
  17
  18 #include "wx/scrolbar.h"
  19 #include "wx/mac/uma.h"
  20
  21 #if !USE_SHARED_LIBRARY
  22 IMPLEMENT_DYNAMIC_CLASS(wxScrollBar, wxControl)
  23
  24 BEGIN_EVENT_TABLE(wxScrollBar, wxControl)
  25 END_EVENT_TABLE()
  26
  27 #endif
  28
  29 extern ControlActionUPP wxMacLiveScrollbarActionUPP ;
  30
  31 // Scrollbar
  32 bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
  33            const wxPoint& pos,
  34            const wxSize& size, long style,
  35            const wxValidator& validator,
  36            const wxString& name)
  37 {
  38   if (!parent)
  39       return FALSE;
  40
  41         Rect bounds ;
  42         Str255 title ;
  43
  44         MacPreControlCreate( parent , id ,  "" , pos , size ,style, validator , name , &bounds , title ) ;
  45
  46         m_macControl = ::NewControl( parent->MacGetRootWindow() , &bounds , title , true , 0 , 0 , 100,
  47                 kControlScrollBarLiveProc , (long) this ) ;
  48
  49         wxASSERT_MSG( m_macControl != NULL , "No valid mac control" ) ;
  50
  51         ::SetControlAction( m_macControl , wxMacLiveScrollbarActionUPP ) ;
  52
  53         MacPostControlCreate() ;
  54
  55   return TRUE;
  56 }
  57
  58 wxScrollBar::~wxScrollBar()
  59 {
  60 }
  61
  62 void wxScrollBar::SetThumbPosition(int viewStart)
  63 {
  64     ::SetControlValue( m_macControl , viewStart ) ;
  65 }
  66
  67 int wxScrollBar::GetThumbPosition() const
  68 {
  69     return ::GetControlValue( m_macControl ) ;
  70 }
  71
  72 void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageSize,
  73     bool refresh)
  74 {
  75     m_viewSize = pageSize;
  76     m_pageSize = thumbSize;
  77     m_objectSize = range;
  78
  79         int range1 = wxMax((m_objectSize - m_pageSize), 0) ;
  80
  81     SetControlMaximum( m_macControl , range1 ) ;
  82     SetControlMinimum(  m_macControl , 0 ) ;
  83     SetControlValue(  m_macControl , position ) ;
  84
  85     if ( UMAGetAppearanceVersion() >= 0x0110  )
  86     {
  87         if ( SetControlViewSize != (void*) kUnresolvedCFragSymbolAddress )
  88         {
  89                         SetControlViewSize( m_macControl , m_pageSize ) ;
  90         }
  91     }
  92     Refresh() ;
  93 }
  94
  95
  96 void wxScrollBar::Command(wxCommandEvent& event)
  97 {
  98     SetThumbPosition(event.m_commandInt);
  99     ProcessCommand(event);
 100 }
 101
 102 void wxScrollBar::MacHandleControlClick( ControlHandle control , SInt16 controlpart )
 103 {
 104         if ( m_macControl == NULL )
 105                 return ;
 106
 107   int position = GetControlValue( m_macControl) ;
 108   int minPos = GetControlMinimum( m_macControl) ;
 109   int maxPos = GetControlMaximum( m_macControl) ;
 110
 111   wxEventType scrollEvent = wxEVT_NULL;
 112   int nScrollInc;
 113
 114         switch( controlpart )
 115         {
 116                 case kControlUpButtonPart :
 117         nScrollInc = -m_pageSize;
 118         scrollEvent = wxEVT_SCROLL_LINEUP;
 119                         break ;
 120                 case kControlDownButtonPart :
 121         nScrollInc = m_pageSize;
 122         scrollEvent = wxEVT_SCROLL_LINEDOWN;
 123                         break ;
 124                 case kControlPageUpPart :
 125         nScrollInc = -m_viewSize;
 126         scrollEvent = wxEVT_SCROLL_PAGEUP;
 127                         break ;
 128                 case kControlPageDownPart :
 129         nScrollInc = m_viewSize;
 130         scrollEvent = wxEVT_SCROLL_PAGEDOWN;
 131                         break ;
 132                 case kControlIndicatorPart :
 133         nScrollInc = 0 ;
 134         scrollEvent = wxEVT_SCROLL_THUMBTRACK;
 135                         break ;
 136         }
 137
 138   int new_pos = position + nScrollInc;
 139
 140   if (new_pos < 0)
 141       new_pos = 0;
 142   if (new_pos > maxPos)
 143       new_pos = maxPos;
 144         if ( nScrollInc )
 145         SetThumbPosition(new_pos);
 146
 147   wxScrollEvent event(scrollEvent, m_windowId);
 148         if ( m_windowStyle & wxHORIZONTAL )
 149         {
 150                 event.SetOrientation( wxHORIZONTAL ) ;
 151         }
 152         else
 153         {
 154                 event.SetOrientation( wxVERTICAL ) ;
 155         }
 156   event.SetPosition(new_pos);
 157   event.SetEventObject( this );
 158   wxWindow* window = GetParent() ;
 159   if (window && window->MacIsWindowScrollbar(this) )
 160   {
 161         // this is hardcoded
 162         window->MacOnScroll(event);
 163   }
 164   else
 165         GetEventHandler()->ProcessEvent(event);
 166 }
 167