src/osx/cocoa/scrolbar.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/cocoa/scrolbar.mm
   3 // Purpose:     wxScrollBar
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id: scrolbar.cpp 54129 2008-06-11 19:30:52Z SC $
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:       wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/scrolbar.h"
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/intl.h"
  18     #include "wx/log.h"
  19     #include "wx/settings.h"
  20 #endif
  21
  22 #include "wx/osx/private.h"
  23
  24 @interface wxNSScroller : NSScroller
  25 {
  26     wxWidgetImpl* impl;
  27 }
  28
  29 - (void)setImplementation: (wxWidgetImpl *) theImplementation;
  30 - (wxWidgetImpl*) implementation;
  31 - (BOOL) isFlipped;
  32  - (void) clickedAction: (id) sender;
  33
  34 @end
  35
  36 @implementation wxNSScroller
  37
  38 - (id)initWithFrame:(NSRect)frame
  39 {
  40     [super initWithFrame:frame];
  41     impl = NULL;
  42     [self setTarget: self];
  43     [self setAction: @selector(clickedAction:)];
  44     return self;
  45 }
  46
  47 - (void) clickedAction: (id) sender
  48 {
  49     if ( impl )
  50     {
  51         wxWindow* wxpeer = (wxWindow*) impl->GetWXPeer();
  52         if ( wxpeer )
  53             wxpeer->HandleClicked(0);
  54     }
  55 }
  56
  57 - (void)setImplementation: (wxWidgetImpl *) theImplementation
  58 {
  59     impl = theImplementation;
  60 }
  61
  62 - (wxWidgetImpl*) implementation
  63 {
  64     return impl ;
  65 }
  66
  67 - (BOOL) isFlipped
  68 {
  69     return YES;
  70 }
  71
  72 @end
  73
  74 class wxOSXScrollBarCocoaImpl : public wxWidgetCocoaImpl
  75 {
  76 public :
  77     wxOSXScrollBarCocoaImpl( wxWindowMac* peer, WXWidget w) : wxWidgetCocoaImpl( peer, w )
  78     {
  79     }
  80
  81     void SetMaximum(wxInt32 v)
  82     {
  83         m_maximum = v;
  84     }
  85
  86     void    SetScrollThumb( wxInt32 value, wxInt32 thumbSize )
  87     {
  88         double v = ((double) value)/m_maximum;
  89         double t = ((double) thumbSize)/m_maximum;
  90 #if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
  91         [(wxNSScroller*) m_osxView setFloatValue:v knobProportion:t];
  92 #else
  93         [(wxNSScroller*) m_osxView setDoubleValue:v];
  94         [(wxNSScroller*) m_osxView setKnobProportion:t];
  95 #endif
  96     }
  97
  98     wxInt32 GetValue() const
  99     {
 100         return [(wxNSScroller*) m_osxView floatValue] * m_maximum;
 101     }
 102 protected:
 103     wxInt32 m_maximum;
 104 };
 105
 106 wxWidgetImplType* wxWidgetImpl::CreateScrollBar( wxWindowMac* wxpeer,
 107                                     wxWindowMac* parent,
 108                                     wxWindowID id,
 109                                     const wxPoint& pos,
 110                                     const wxSize& size,
 111                                     long style,
 112                                     long extraStyle)
 113 {
 114     NSView* sv = (wxpeer->GetParent()->GetHandle() );
 115
 116     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
 117     wxNSScroller* v = [[wxNSScroller alloc] initWithFrame:r];
 118
 119     [sv addSubview:v];
 120     wxWidgetCocoaImpl* c = new wxOSXScrollBarCocoaImpl( wxpeer, v );
 121     [v setImplementation:c];
 122     return c;
 123 }