src/osx/cocoa/slider.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/cocoa/slider.mm
   3 // Purpose:     wxSlider
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id: slider.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_SLIDER
  15
  16 #include "wx/slider.h"
  17 #include "wx/osx/private.h"
  18
  19 @interface wxNSSlider : NSSlider
  20 {
  21     WXCOCOAIMPL_COMMON_MEMBERS
  22 }
  23
  24 WXCOCOAIMPL_COMMON_INTERFACE
  25
  26  - (void) clickedAction: (id) sender;
  27
  28 @end
  29
  30 @implementation wxNSSlider
  31
  32 - (id)initWithFrame:(NSRect)frame
  33 {
  34     [super initWithFrame:frame];
  35     impl = NULL;
  36     [self setTarget: self];
  37     [self setAction: @selector(clickedAction:)];
  38     return self;
  39 }
  40
  41 WXCOCOAIMPL_COMMON_IMPLEMENTATION_NO_MOUSEDOWN
  42
  43 // we will have a mouseDown, then in the native
  44 // implementation of mouseDown the tracking code
  45 // is calling clickedAction, therefore we wire this
  46 // to thumbtrack and only after super mouseDown
  47 // returns we will call the thumbrelease
  48
  49 - (void) clickedAction: (id) sender
  50 {
  51     if ( impl )
  52     {
  53         wxWindow* wxpeer = (wxWindow*) impl->GetWXPeer();
  54         if ( wxpeer )
  55             wxpeer->TriggerScrollEvent(wxEVT_SCROLL_THUMBTRACK);
  56     }
  57 }
  58
  59 -(void)mouseDown:(NSEvent *)event
  60 {
  61     if ( !impl->DoHandleMouseEvent(event) )
  62         [super mouseDown:event];
  63
  64     if ( impl )
  65     {
  66         wxWindow* wxpeer = (wxWindow*) impl->GetWXPeer();
  67         if ( wxpeer )
  68             wxpeer->OSXHandleClicked(0);
  69     }
  70 }
  71
  72 @end
  73
  74 wxWidgetImplType* wxWidgetImpl::CreateSlider( wxWindowMac* wxpeer,
  75                                     wxWindowMac* parent,
  76                                     wxWindowID id,
  77                                     wxInt32 value,
  78                                     wxInt32 minimum,
  79                                     wxInt32 maximum,
  80                                     const wxPoint& pos,
  81                                     const wxSize& size,
  82                                     long style,
  83                                     long extraStyle)
  84 {
  85     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
  86     wxNSSlider* v = [[wxNSSlider alloc] initWithFrame:r];
  87
  88     int tickMarks = 0;
  89     if ( style & wxSL_AUTOTICKS )
  90     {
  91         tickMarks = (maximum - minimum) + 1; // +1 for the 0 value
  92
  93         // keep the number of tickmarks from becoming unwieldly, therefore below it is ok to cast
  94         // it to a UInt16
  95         while (tickMarks > 20)
  96             tickMarks /= 5;
  97
  98         [v setNumberOfTickMarks:tickMarks];
  99         [v setTickMarkPosition:NSTickMarkBelow];
 100     }
 101
 102     [v setMinValue: minimum];
 103     [v setMaxValue: maximum];
 104     [v setFloatValue: (double) value];
 105     wxWidgetCocoaImpl* c = new wxWidgetCocoaImpl( wxpeer, v );
 106     [v setImplementation:c];
 107     return c;
 108 }
 109
 110 #endif // wxUSE_SLIDER