src/cocoa/slider.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/cocoa/slider.mm
   3 // Purpose:     wxSlider
   4 // Author:      David Elliott
   5 //              Mark Oxenham
   6 // Modified by:
   7 // Created:     2003/06/19
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 2003 David Elliott
  10 //              (c) 2007 Software 2000 Ltd.
  11 // Licence:     wxWidgets licence
  12 /////////////////////////////////////////////////////////////////////////////
  13
  14 #include "wx/wxprec.h"
  15
  16 #if wxUSE_SLIDER
  17
  18 #include "wx/slider.h"
  19
  20 #ifndef WX_PRECOMP
  21     #include "wx/app.h"
  22 #endif //WX_PRECOMP
  23
  24 #include "wx/cocoa/objc/NSSlider.h"
  25
  26 IMPLEMENT_DYNAMIC_CLASS(wxSlider, wxControl)
  27     BEGIN_EVENT_TABLE(wxSlider, wxSliderBase)
  28 END_EVENT_TABLE()
  29 WX_IMPLEMENT_COCOA_OWNER(wxSlider,NSSlider,NSControl,NSView)
  30
  31
  32 inline void AdjustDimension(
  33                 bool            isTicksStyle,
  34                 int             &pos,
  35                 wxSize          &size,
  36                 int             (wxSize::*GetDimension)() const,
  37                 void            (wxSize::*SetDimension)(int))
  38 {
  39     const int dimension = (size.*GetDimension)();
  40     const int minSize = (isTicksStyle) ? 23 : 20;
  41
  42     if (dimension < minSize)
  43     {
  44         (size.*SetDimension)(minSize);
  45     }
  46
  47     pos += (dimension - (size.*GetDimension)() + 1) / 2;
  48 }
  49
  50 bool wxSlider::Create(wxWindow *parent, wxWindowID winid,
  51             int value, int minValue, int maxValue,
  52             const wxPoint& pos, const wxSize& size, long style,
  53             const wxValidator& validator, const wxString& name)
  54 {
  55     wxSize adjustedSize(size);
  56     wxPoint adjustedPos(pos);
  57     const bool isTicksStyle = (style & wxSL_TICKS) != 0;
  58
  59     if ((style & wxSL_HORIZONTAL) && (size.GetHeight() != wxDefaultCoord))
  60     {
  61         AdjustDimension(isTicksStyle, adjustedPos.y, adjustedSize, &wxSize::GetHeight, &wxSize::SetHeight);
  62     }
  63     else if ((style & wxSL_VERTICAL) && (size.GetWidth() != wxDefaultCoord))
  64     {
  65         AdjustDimension(isTicksStyle, adjustedPos.x, adjustedSize, &wxSize::GetWidth, &wxSize::SetWidth);
  66     }
  67
  68     if(!CreateControl(parent,winid,pos,size,style,validator,name))
  69         return false;
  70     SetNSSlider([[WX_GET_OBJC_CLASS(WXNSSlider) alloc] initWithFrame: MakeDefaultNSRect(size)]);
  71     [m_cocoaNSView release];
  72
  73     if(m_parent)
  74         m_parent->CocoaAddChild(this);
  75     SetInitialFrameRect(pos,size);
  76
  77     SetRange(minValue, maxValue);
  78     SetValue(value);
  79
  80     return true;
  81 }
  82
  83 wxSlider::~wxSlider()
  84 {
  85     DisassociateNSSlider(GetNSSlider());
  86 }
  87
  88 void wxSlider::ProcessEventType(wxEventType commandType)
  89 {
  90     wxScrollEvent event(commandType, GetId(), GetValue(), HasFlag(wxSL_VERTICAL)?wxVERTICAL:wxHORIZONTAL);
  91     event.SetEventObject(this);
  92     GetEventHandler()->ProcessEvent(event);
  93 }
  94
  95 void wxSlider::CocoaNotification_startTracking(WX_NSNotification notification)
  96 {
  97     CocoaNotification_continueTracking(notification);
  98 }
  99
 100 void wxSlider::CocoaNotification_continueTracking(WX_NSNotification notification)
 101 {
 102     const double realValue = [GetNSSlider() doubleValue];
 103
 104     if (realValue != [GetNSSlider() intValue])
 105     {
 106         SetValue(rint(realValue));
 107     }
 108
 109     ProcessEventType(wxEVT_SCROLL_THUMBTRACK);
 110 }
 111
 112 void wxSlider::CocoaNotification_stopTracking(WX_NSNotification notification)
 113 {
 114     ProcessEventType(wxEVT_SCROLL_THUMBRELEASE);
 115 }
 116
 117 int wxSlider::GetValue() const
 118 {
 119     return [GetNSSlider() intValue];
 120 }
 121
 122 void wxSlider::SetValue(int value)
 123 {
 124     [GetNSSlider() setIntValue:value];
 125 }
 126
 127 void wxSlider::SetRange(int minValue, int maxValue)
 128 {
 129     [GetNSSlider() setMinValue:minValue];
 130     [GetNSSlider() setMaxValue:maxValue];
 131 }
 132
 133 int wxSlider::GetMin() const
 134 {
 135     return [GetNSSlider() minValue];
 136 }
 137
 138 int wxSlider::GetMax() const
 139 {
 140     return [GetNSSlider() maxValue];
 141 }
 142
 143 void wxSlider::SetTickFreq(int n, int pos)
 144 {
 145     const int numTicks = (n > 0) ? ((GetMax() - GetMin()) / n) + 1 : 0;
 146     [GetNSSlider() setNumberOfTickMarks:numTicks];
 147 }
 148
 149 int wxSlider::GetTickFreq() const
 150 {
 151     const int numTicks = [GetNSSlider() numberOfTickMarks];
 152     return ((numTicks != 0) ? (GetMax() - GetMin()) / (numTicks - 1) : 0);
 153 }
 154
 155 void wxSlider::SetTickPos(int pos)
 156 {
 157     NSTickMarkPosition thePos = NSTickMarkBelow;
 158     wxSize size = GetSize();
 159
 160     if (size.GetWidth() < size.GetHeight()) // NSSlider isVertical method can return -1 if it has not been displayed.
 161     {
 162         thePos = (pos != 1) ? NSTickMarkLeft : NSTickMarkRight;
 163     }
 164     else
 165     {
 166         thePos = (pos != 1) ? NSTickMarkBelow : NSTickMarkAbove;
 167     }
 168
 169     [GetNSSlider() setTickMarkPosition:thePos];
 170 }
 171
 172 void wxSlider::SetLineSize(int lineSize)
 173 {
 174     // to do
 175 }
 176
 177 void wxSlider::SetPageSize(int pageSize)
 178 {
 179     // to do
 180 }
 181
 182 int wxSlider::GetLineSize() const
 183 {
 184     return 1;
 185 }
 186
 187 int wxSlider::GetPageSize() const
 188 {
 189     return 1;
 190 }
 191
 192 int wxSlider::GetThumbLength() const
 193 {
 194     return 1;
 195 }
 196
 197 void wxSlider::SetThumbLength(int lenPixels)
 198 {
 199     // to do
 200 }
 201
 202 #endif // wxUSE_SLIDER