src/cocoa/NSSlider.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/cocoa/NSSlider.mm
   3 // Purpose:     wxCocoaNSSlider class
   4 // Author:      Mark Oxenham
   5 // Modified by: David Elliott
   6 // Created:     2007/08/10
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2007 Software 2000 Ltd. All rights reserved.
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #ifndef WX_PRECOMP
  15     #include "wx/log.h"
  16 #endif // WX_PRECOMP
  17
  18 #include "wx/cocoa/NSSlider.h"
  19
  20 #import <Foundation/NSNotification.h>
  21 #import <Foundation/NSString.h>
  22 #import <AppKit/NSEvent.h>
  23 #include "wx/cocoa/objc/NSSlider.h"
  24
  25 WX_IMPLEMENT_OBJC_INTERFACE_HASHMAP(NSSlider)
  26
  27 class wxCocoaNSSliderLastSelectorChanger
  28 {
  29 public:
  30     wxCocoaNSSliderLastSelectorChanger(SEL newSelector)
  31     {
  32         m_savedResponderSelector = wxCocoaNSSlider::sm_lastResponderSelector;
  33         wxCocoaNSSlider::sm_lastResponderSelector = newSelector;
  34     }
  35     ~wxCocoaNSSliderLastSelectorChanger()
  36     {
  37         wxCocoaNSSlider::sm_lastResponderSelector = m_savedResponderSelector;
  38     }
  39 private:
  40     SEL m_savedResponderSelector;
  41 // Don't allow any default or copy construction
  42     wxCocoaNSSliderLastSelectorChanger();
  43     wxCocoaNSSliderLastSelectorChanger(const wxCocoaNSSliderLastSelectorChanger&);
  44     void operator=(const wxCocoaNSSliderLastSelectorChanger&);
  45 };
  46
  47 // ============================================================================
  48 // @class WXNSSlider
  49 // ============================================================================
  50
  51 @implementation WXNSSlider : NSSlider
  52
  53 // Override to ensure that WXNSSlider gets created with a WXNSSliderCell
  54 + (Class)cellClass
  55 {
  56     return [WX_GET_OBJC_CLASS(WXNSSliderCell) class];
  57 }
  58
  59 // The following methods are all NSResponder methods which NSSlider responds
  60 // to in order to change its state and send the action message.  We override
  61 // them simply to record which one was called.  This allows code listening
  62 // only for the action message to determine what caused the action.
  63 // Note that this is perfectly fine being a global because Cocoa processes
  64 // events synchronously and only in the main thread.
  65
  66 - (void)keyDown:(NSEvent *)theEvent
  67 {
  68     wxCocoaNSSliderLastSelectorChanger savedSelector(_cmd);
  69     [super keyDown:theEvent];
  70 }
  71
  72 - (void)moveUp:(id)sender
  73 {
  74     wxCocoaNSSliderLastSelectorChanger savedSelector(_cmd);
  75     [super moveUp:sender];
  76 }
  77
  78 - (void)moveDown:(id)sender
  79 {
  80     wxCocoaNSSliderLastSelectorChanger savedSelector(_cmd);
  81     [super moveDown:sender];
  82 }
  83
  84 - (void)moveLeft:(id)sender
  85 {
  86     wxCocoaNSSliderLastSelectorChanger savedSelector(_cmd);
  87     [super moveLeft:sender];
  88 }
  89
  90 - (void)moveRight:(id)sender
  91 {
  92     wxCocoaNSSliderLastSelectorChanger savedSelector(_cmd);
  93     [super moveRight:sender];
  94 }
  95
  96 - (void)pageUp:(id)sender
  97 {
  98     wxCocoaNSSliderLastSelectorChanger savedSelector(_cmd);
  99     [super pageUp:sender];
 100 }
 101
 102 - (void)pageDown:(id)sender
 103 {
 104     wxCocoaNSSliderLastSelectorChanger savedSelector(_cmd);
 105     [super pageDown:sender];
 106 }
 107
 108 @end
 109 WX_IMPLEMENT_GET_OBJC_CLASS(WXNSSlider,NSSlider)
 110
 111 // ============================================================================
 112 // @class WXNSSliderCell
 113 // ============================================================================
 114
 115 @implementation WXNSSliderCell : NSSliderCell
 116 - (BOOL)startTrackingAt:(NSPoint)startPoint inView:(NSView *)controlView
 117 {
 118     BOOL result = [super startTrackingAt:startPoint inView:controlView];
 119
 120     wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(controlView);
 121     if(slider)
 122         slider->CocoaNotification_startTracking(NULL);
 123
 124     return result;
 125 }
 126
 127 - (BOOL)continueTracking:(NSPoint)lastPoint at:(NSPoint)currentPoint inView:(NSView *)controlView
 128 {
 129     BOOL result = [super continueTracking:lastPoint at:currentPoint inView:controlView];
 130
 131     wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(controlView);
 132     if(slider)
 133         slider->CocoaNotification_continueTracking(NULL);
 134
 135     return result;
 136 }
 137
 138 - (void)stopTracking:(NSPoint)lastPoint at:(NSPoint)stopPoint inView:(NSView *)controlView mouseIsUp:(BOOL)flag
 139 {
 140     [super stopTracking:lastPoint at:stopPoint inView:controlView mouseIsUp:flag];
 141
 142     wxCocoaNSSlider *slider = wxCocoaNSSlider::GetFromCocoa(controlView);
 143     if(slider)
 144         slider->CocoaNotification_stopTracking(NULL);
 145 }
 146 @end
 147 WX_IMPLEMENT_GET_OBJC_CLASS(WXNSSliderCell,NSSliderCell)
 148
 149 // ============================================================================
 150 // class wxCocoaNSSlider
 151 // ============================================================================
 152
 153 SEL wxCocoaNSSlider::sm_lastResponderSelector;
 154
 155 void wxCocoaNSSlider::AssociateNSSlider(WX_NSSlider cocoaNSSlider)
 156 {
 157     if(cocoaNSSlider)
 158     {
 159         sm_cocoaHash.insert(wxCocoaNSSliderHash::value_type(cocoaNSSlider,this));
 160     }
 161 }
 162
 163 void wxCocoaNSSlider::DisassociateNSSlider(WX_NSSlider cocoaNSSlider)
 164 {
 165     if(cocoaNSSlider)
 166     {
 167         sm_cocoaHash.erase(cocoaNSSlider);
 168     }
 169 }