src/mac/scrolbar.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        scrolbar.cpp
   3 // Purpose:     wxScrollBar
   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 #ifdef __GNUG__
  13 #pragma implementation "scrolbar.h"
  14 #endif
  15
  16 #include "wx/defs.h"
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/intl.h"
  20     #include "wx/log.h"
  21 #endif // WX_PRECOMP
  22
  23 #include "wx/scrolbar.h"
  24 #include "wx/mac/uma.h"
  25
  26 #if !USE_SHARED_LIBRARY
  27 IMPLEMENT_DYNAMIC_CLASS(wxScrollBar, wxControl)
  28
  29 BEGIN_EVENT_TABLE(wxScrollBar, wxControl)
  30 END_EVENT_TABLE()
  31
  32 #endif
  33
  34 extern ControlActionUPP wxMacLiveScrollbarActionUPP ;
  35
  36 // Scrollbar
  37 bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
  38            const wxPoint& pos,
  39            const wxSize& size, long style,
  40            const wxValidator& validator,
  41            const wxString& name)
  42 {
  43   if (!parent)
  44       return FALSE;
  45
  46     Rect bounds ;
  47     Str255 title ;
  48
  49     MacPreControlCreate( parent , id ,  wxEmptyString , pos , size ,style, validator , name , &bounds , title ) ;
  50
  51     m_macControl = ::NewControl( MAC_WXHWND(parent->MacGetRootWindow()) , &bounds , title , true , 0 , 0 , 100,
  52         kControlScrollBarLiveProc , (long) this ) ;
  53
  54     wxASSERT_MSG( (ControlHandle) m_macControl != NULL , wxT("No valid mac control") ) ;
  55
  56     ::SetControlAction( (ControlHandle) m_macControl , wxMacLiveScrollbarActionUPP ) ;
  57
  58     MacPostControlCreate() ;
  59
  60   return TRUE;
  61 }
  62
  63 wxScrollBar::~wxScrollBar()
  64 {
  65 }
  66
  67 void wxScrollBar::SetThumbPosition(int viewStart)
  68 {
  69     ::SetControl32BitValue( (ControlHandle) m_macControl , viewStart ) ;
  70 }
  71
  72 int wxScrollBar::GetThumbPosition() const
  73 {
  74     return ::GetControl32BitValue( (ControlHandle) m_macControl ) ;
  75 }
  76
  77 void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageSize,
  78     bool refresh)
  79 {
  80     m_pageSize = pageSize;
  81     m_viewSize = thumbSize;
  82     m_objectSize = range;
  83
  84       int range1 = wxMax((m_objectSize - m_viewSize), 0) ;
  85
  86     SetControl32BitMaximum( (ControlHandle) m_macControl , range1 ) ;
  87     SetControl32BitMinimum( (ControlHandle) m_macControl , 0 ) ;
  88     SetControl32BitValue( (ControlHandle) m_macControl , position ) ;
  89
  90     if ( UMAGetAppearanceVersion() >= 0x0110  )
  91     {
  92         if ( SetControlViewSize != (void*) kUnresolvedCFragSymbolAddress )
  93         {
  94                 SetControlViewSize( (ControlHandle) m_macControl , m_viewSize ) ;
  95         }
  96     }
  97     if ( refresh )
  98       MacRedrawControl() ;
  99 }
 100
 101
 102 void wxScrollBar::Command(wxCommandEvent& event)
 103 {
 104     SetThumbPosition(event.m_commandInt);
 105     ProcessCommand(event);
 106 }
 107
 108 void wxScrollBar::MacHandleControlClick( WXWidget control , wxInt16 controlpart , bool mouseStillDown )
 109 {
 110     if ( (ControlHandle) m_macControl == NULL )
 111         return ;
 112
 113     int position = GetControl32BitValue( (ControlHandle) m_macControl) ;
 114     int minPos = GetControl32BitMinimum( (ControlHandle) m_macControl) ;
 115     int maxPos = GetControl32BitMaximum( (ControlHandle) m_macControl) ;
 116
 117     wxEventType scrollEvent = wxEVT_NULL;
 118     int nScrollInc;
 119
 120     // all events have already been reported during mouse down, except for THUMBRELEASE
 121     if ( !mouseStillDown && controlpart !=kControlIndicatorPart )
 122         return ;
 123
 124     switch( controlpart )
 125     {
 126     case kControlUpButtonPart :
 127         nScrollInc = -1;
 128         scrollEvent = wxEVT_SCROLL_LINEUP;
 129         break ;
 130     case kControlDownButtonPart :
 131         nScrollInc = 1;
 132         scrollEvent = wxEVT_SCROLL_LINEDOWN;
 133         break ;
 134     case kControlPageUpPart :
 135         nScrollInc = -m_pageSize;
 136         scrollEvent = wxEVT_SCROLL_PAGEUP;
 137         break ;
 138     case kControlPageDownPart :
 139         nScrollInc = m_pageSize;
 140         scrollEvent = wxEVT_SCROLL_PAGEDOWN;
 141         break ;
 142     case kControlIndicatorPart :
 143         nScrollInc = 0 ;
 144         if ( mouseStillDown )
 145             scrollEvent = wxEVT_SCROLL_THUMBTRACK;
 146         else
 147             scrollEvent = wxEVT_SCROLL_THUMBRELEASE;
 148         break ;
 149     default :
 150         wxFAIL_MSG(wxT("illegal scrollbar selector"));
 151         break ;
 152     }
 153
 154     int new_pos = position + nScrollInc;
 155
 156     if (new_pos < minPos)
 157         new_pos = minPos;
 158     if (new_pos > maxPos)
 159         new_pos = maxPos;
 160     if ( nScrollInc )
 161         SetThumbPosition(new_pos);
 162
 163     wxScrollEvent event(scrollEvent, m_windowId);
 164     if ( m_windowStyle & wxHORIZONTAL )
 165     {
 166         event.SetOrientation( wxHORIZONTAL ) ;
 167     }
 168     else
 169     {
 170         event.SetOrientation( wxVERTICAL ) ;
 171     }
 172     event.SetPosition(new_pos);
 173     event.SetEventObject( this );
 174     wxWindow* window = GetParent() ;
 175     if (window && window->MacIsWindowScrollbar(this) )
 176     {
 177         // this is hardcoded
 178         window->MacOnScroll(event);
 179     }
 180     else
 181         GetEventHandler()->ProcessEvent(event);
 182 }
 183