src/osx/cocoa/spinbutt.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        spinbutt.cpp
   3 // Purpose:     wxSpinButton
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id: spinbutt.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 #if wxUSE_SPINBTN
  15
  16 #include "wx/spinbutt.h"
  17 #include "wx/osx/private.h"
  18
  19 @interface wxNSStepper : NSStepper
  20 {
  21     WXCOCOAIMPL_COMMON_MEMBERS
  22     int formerValue;
  23 }
  24
  25 WXCOCOAIMPL_COMMON_INTERFACE
  26
  27  - (void) clickedAction: (id) sender;
  28
  29 @end
  30
  31 @implementation wxNSStepper
  32
  33 - (id)initWithFrame:(NSRect)frame
  34 {
  35     [super initWithFrame:frame];
  36     impl = NULL;
  37     formerValue = 0;
  38     [self setTarget: self];
  39     [self setAction: @selector(clickedAction:)];
  40     return self;
  41 }
  42
  43 - (void) clickedAction: (id) sender
  44 {
  45     if ( impl )
  46     {
  47         wxWindow* wxpeer = (wxWindow*) impl->GetWXPeer();
  48         if ( wxpeer )
  49         {
  50             // because wx expects to be able to veto
  51             // a change we must revert the value change
  52             // and expose it
  53             int currentValue = [self intValue];
  54             [self setIntValue:formerValue];
  55             int inc = currentValue-formerValue;
  56
  57             // adjust for wrap arounds
  58             if ( inc > 1 )
  59                 inc = -1;
  60             else if (inc < -1 )
  61                 inc = 1;
  62
  63             if ( inc == 1 )
  64                 wxpeer->TriggerScrollEvent(wxEVT_SCROLL_LINEUP);
  65             else if ( inc == -1 )
  66                 wxpeer->TriggerScrollEvent(wxEVT_SCROLL_LINEDOWN);
  67
  68             formerValue = [self intValue];
  69         }
  70     }
  71 }
  72
  73 -(void)mouseDown:(NSEvent *)event
  74 {
  75     formerValue = [self intValue];
  76     if ( !impl->DoHandleMouseEvent(event) )
  77         [super mouseDown:event];
  78 }
  79
  80 WXCOCOAIMPL_COMMON_IMPLEMENTATION_NO_MOUSEDOWN
  81
  82 @end
  83
  84 wxWidgetImplType* wxWidgetImpl::CreateSpinButton( wxWindowMac* wxpeer,
  85                                     wxWindowMac* parent,
  86                                     wxWindowID id,
  87                                     wxInt32 value,
  88                                     wxInt32 minimum,
  89                                     wxInt32 maximum,
  90                                     const wxPoint& pos,
  91                                     const wxSize& size,
  92                                     long style,
  93                                     long extraStyle)
  94 {
  95     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
  96     wxNSStepper* v = [[wxNSStepper alloc] initWithFrame:r];
  97
  98     [v setMinValue: minimum];
  99     [v setMaxValue: maximum];
 100     [v setIntValue: value];
 101
 102     if ( style & wxSP_WRAP )
 103         [v setValueWraps:YES];
 104
 105     wxWidgetCocoaImpl* c = new wxWidgetCocoaImpl( wxpeer, v );
 106     [v setImplementation:c];
 107     return c;
 108 }
 109
 110 #endif // wxUSE_SPINBTN