src/mac/carbon/slider.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        slider.cpp
   3 // Purpose:     wxSlider
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:       wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "slider.h"
  14 #endif
  15
  16 #include "wx/wxprec.h"
  17
  18 #if wxUSE_SLIDER
  19
  20 #include "wx/slider.h"
  21 #include "wx/mac/uma.h"
  22
  23 #if !USE_SHARED_LIBRARY
  24 IMPLEMENT_DYNAMIC_CLASS(wxSlider, wxControl)
  25
  26 BEGIN_EVENT_TABLE(wxSlider, wxControl)
  27 END_EVENT_TABLE()
  28 #endif
  29
  30  // The dimensions of the different styles of sliders (From Aqua document)
  31 #define wxSLIDER_DIMENSIONACROSS 15
  32 #define wxSLIDER_DIMENSIONACROSS_WITHTICKMARKS 24
  33 #define wxSLIDER_DIMENSIONACROSS_ARROW 18
  34
  35 // Distance between slider and text
  36 #define wxSLIDER_BORDERTEXT 5
  37
  38 /* NB!  The default orientation for a slider is horizontal however if the user specifies
  39  * some slider styles but dosen't specify the orientation we have to assume he wants a
  40  * horizontal one.  Therefore in this file when testing for the sliders orientation
  41  * vertical is tested for if this is not set then we use the horizontal one
  42  * eg.  if(GetWindowStyle() & wxSL_VERTICAL) {}  else { horizontal case }>
  43  */
  44
  45  // Slider
  46  wxSlider::wxSlider()
  47 {
  48     m_pageSize = 1;
  49     m_lineSize = 1;
  50     m_rangeMax = 0;
  51     m_rangeMin = 0;
  52     m_tickFreq = 0;
  53 }
  54
  55 extern ControlActionUPP wxMacLiveScrollbarActionUPP ;
  56
  57 bool wxSlider::Create(wxWindow *parent, wxWindowID id,
  58                       int value, int minValue, int maxValue,
  59                       const wxPoint& pos,
  60                       const wxSize& size, long style,
  61                       const wxValidator& validator,
  62                       const wxString& name)
  63 {
  64     m_macIsUserPane = false ;
  65
  66     if ( !wxControl::Create(parent, id, pos, size, style, validator, name) )
  67         return false;
  68
  69     m_macMinimumStatic = NULL ;
  70     m_macMaximumStatic = NULL ;
  71     m_macValueStatic = NULL ;
  72
  73
  74     m_lineSize = 1;
  75     m_tickFreq = 0;
  76
  77     m_rangeMax = maxValue;
  78     m_rangeMin = minValue;
  79
  80     m_pageSize = (int)((maxValue-minValue)/10);
  81
  82     Rect bounds = wxMacGetBoundsForControl( this , pos , size ) ;
  83
  84     //
  85     // NB: (RN) Ticks here are sometimes off in the GUI if there
  86     // is not as many ticks as there are values
  87     //
  88     UInt16 tickMarks = 0 ;
  89     if ( style & wxSL_AUTOTICKS )
  90         tickMarks = (maxValue - minValue) + 1; //+1 for the 0 value
  91
  92     while (tickMarks > 20)
  93             tickMarks /= 5; //keep the number of tickmarks from becoming unwieldly
  94
  95     m_peer = new wxMacControl() ;
  96     verify_noerr ( CreateSliderControl( MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds ,
  97     value , minValue , maxValue , kControlSliderPointsDownOrRight , tickMarks , true /* liveTracking */ ,
  98         wxMacLiveScrollbarActionUPP , m_peer->GetControlRefAddr() ) );
  99
 100
 101     if(style & wxSL_VERTICAL) {
 102         SetSizeHints(10, -1, 10, -1);  // Forces SetSize to use the proper width
 103     }
 104     else {
 105         SetSizeHints(-1, 10, -1, 10);  // Forces SetSize to use the proper height
 106     }
 107     // NB!  SetSizeHints is overloaded by wxSlider and will substitute 10 with the
 108     // proper dimensions, it also means other people cannot bugger the slider with
 109     // other values
 110
 111     if(style & wxSL_LABELS)
 112     {
 113         m_macMinimumStatic = new wxStaticText( parent, wxID_ANY, wxEmptyString );
 114         m_macMaximumStatic = new wxStaticText( parent, wxID_ANY, wxEmptyString );
 115         m_macValueStatic = new wxStaticText( parent, wxID_ANY, wxEmptyString );
 116         SetRange(minValue, maxValue);
 117         SetValue(value);
 118     }
 119
 120     MacPostControlCreate(pos,size) ;
 121
 122     return true;
 123 }
 124
 125 wxSlider::~wxSlider()
 126 {
 127     // this is a special case, as we had to add windows as siblings we are
 128     // responsible for their disposal, but only if we are not part of a DestroyAllChildren
 129     if ( m_parent && m_parent->IsBeingDeleted() == false )
 130     {
 131         delete m_macMinimumStatic ;
 132         delete m_macMaximumStatic ;
 133         delete m_macValueStatic ;
 134     }
 135 }
 136
 137 int wxSlider::GetValue() const
 138 {
 139     return m_peer->GetValue() ;
 140 }
 141
 142 void wxSlider::SetValue(int value)
 143 {
 144     wxString valuestring ;
 145     valuestring.Printf( wxT("%d") , value ) ;
 146     if ( m_macValueStatic )
 147         m_macValueStatic->SetLabel( valuestring ) ;
 148     m_peer->SetValue( value ) ;
 149 }
 150
 151 void wxSlider::SetRange(int minValue, int maxValue)
 152 {
 153     wxString value;
 154
 155     m_rangeMin = minValue;
 156     m_rangeMax = maxValue;
 157
 158     m_peer->SetMinimum( m_rangeMin);
 159     m_peer->SetMaximum( m_rangeMax);
 160
 161     if(m_macMinimumStatic) {
 162         value.Printf(wxT("%d"), m_rangeMin);
 163         m_macMinimumStatic->SetLabel(value);
 164     }
 165     if(m_macMaximumStatic) {
 166         value.Printf(wxT("%d"), m_rangeMax);
 167         m_macMaximumStatic->SetLabel(value);
 168     }
 169     SetValue(m_rangeMin);
 170 }
 171
 172 // For trackbars only
 173 void wxSlider::SetTickFreq(int n, int pos)
 174 {
 175     // TODO
 176     m_tickFreq = n;
 177 }
 178
 179 void wxSlider::SetPageSize(int pageSize)
 180 {
 181     // TODO
 182     m_pageSize = pageSize;
 183 }
 184
 185 int wxSlider::GetPageSize() const
 186 {
 187     return m_pageSize;
 188 }
 189
 190 void wxSlider::ClearSel()
 191 {
 192     // TODO
 193 }
 194
 195 void wxSlider::ClearTicks()
 196 {
 197     // TODO
 198 }
 199
 200 void wxSlider::SetLineSize(int lineSize)
 201 {
 202     m_lineSize = lineSize;
 203     // TODO
 204 }
 205
 206 int wxSlider::GetLineSize() const
 207 {
 208     // TODO
 209     return 0;
 210 }
 211
 212 int wxSlider::GetSelEnd() const
 213 {
 214     // TODO
 215     return 0;
 216 }
 217
 218 int wxSlider::GetSelStart() const
 219 {
 220     // TODO
 221     return 0;
 222 }
 223
 224 void wxSlider::SetSelection(int minPos, int maxPos)
 225 {
 226     // TODO
 227 }
 228
 229 void wxSlider::SetThumbLength(int len)
 230 {
 231     // TODO
 232 }
 233
 234 int wxSlider::GetThumbLength() const
 235 {
 236     // TODO
 237     return 0;
 238 }
 239
 240 void wxSlider::SetTick(int tickPos)
 241 {
 242     // TODO
 243 }
 244
 245 void wxSlider::Command (wxCommandEvent & event)
 246 {
 247     SetValue (event.GetInt());
 248     ProcessCommand (event);
 249 }
 250
 251 void wxSlider::MacHandleControlClick( WXWidget control , wxInt16 controlpart, bool mouseStillDown )
 252 {
 253     SInt16 value = m_peer->GetValue() ;
 254
 255     SetValue( value ) ;
 256
 257     wxEventType scrollEvent = wxEVT_NULL ;
 258
 259     scrollEvent = wxEVT_SCROLL_THUMBTRACK;
 260
 261     wxScrollEvent event(scrollEvent, m_windowId);
 262     event.SetPosition(value);
 263     event.SetEventObject( this );
 264     GetEventHandler()->ProcessEvent(event);
 265
 266     wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, m_windowId );
 267     cevent.SetInt( value );
 268     cevent.SetEventObject( this );
 269
 270     GetEventHandler()->ProcessEvent( cevent );
 271 }
 272
 273 wxInt32 wxSlider::MacControlHit( WXEVENTHANDLERREF handler , WXEVENTREF mevent )
 274 {
 275     SInt16 value = m_peer->GetValue() ;
 276
 277     SetValue( value ) ;
 278
 279     wxEventType scrollEvent = wxEVT_NULL ;
 280
 281     scrollEvent = wxEVT_SCROLL_THUMBRELEASE;
 282
 283     wxScrollEvent event(scrollEvent, m_windowId);
 284     event.SetPosition(value);
 285     event.SetEventObject( this );
 286     GetEventHandler()->ProcessEvent(event);
 287
 288     wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, m_windowId );
 289     cevent.SetInt( value );
 290     cevent.SetEventObject( this );
 291
 292     GetEventHandler()->ProcessEvent( cevent );
 293     return noErr ;
 294 }
 295
 296
 297 /* This is overloaded in wxSlider so that the proper width/height will always be used
 298 * for the slider different values would cause redrawing and mouse detection problems */
 299 void wxSlider::DoSetSizeHints( int minW, int minH,
 300                                int maxW , int maxH ,
 301                                int incW , int incH )
 302 {
 303     wxSize size = GetBestSize();
 304
 305     if(GetWindowStyle() & wxSL_VERTICAL) {
 306         wxWindow::DoSetSizeHints(size.x, minH, size.x, maxH, incW, incH);
 307     }
 308     else {
 309         wxWindow::DoSetSizeHints(minW, size.y, maxW, size.y, incW, incH);
 310     }
 311 }
 312
 313 wxSize wxSlider::DoGetBestSize() const
 314 {
 315     wxSize size;
 316     int textwidth, textheight;
 317
 318     if(GetWindowStyle() & wxSL_LABELS)
 319     {
 320         wxString text;
 321         int ht, wd;
 322
 323         // Get maximum text label width and height
 324         text.Printf(wxT("%d"), m_rangeMin);
 325         GetTextExtent(text, &textwidth, &textheight);
 326         text.Printf(wxT("%d"), m_rangeMax);
 327         GetTextExtent(text, &wd, &ht);
 328         if(ht > textheight) {
 329             textheight = ht;
 330         }
 331         if (wd > textwidth) {
 332             textwidth = wd;
 333         }
 334     }
 335
 336     if(GetWindowStyle() & wxSL_VERTICAL)
 337     {
 338         if(GetWindowStyle() & wxSL_AUTOTICKS) {
 339             size.x = wxSLIDER_DIMENSIONACROSS_WITHTICKMARKS;
 340         }
 341         else {
 342             size.x = wxSLIDER_DIMENSIONACROSS_ARROW;
 343         }
 344         if(GetWindowStyle() & wxSL_LABELS) {
 345             size.x += textwidth + wxSLIDER_BORDERTEXT;
 346         }
 347         size.y = 150;
 348     }
 349     else
 350     {
 351         if(GetWindowStyle() & wxSL_AUTOTICKS) {
 352             size.y = wxSLIDER_DIMENSIONACROSS_WITHTICKMARKS;
 353         }
 354         else {
 355             size.y = wxSLIDER_DIMENSIONACROSS_ARROW;
 356         }
 357         if(GetWindowStyle() & wxSL_LABELS) {
 358             size.y += textheight + wxSLIDER_BORDERTEXT;
 359         }
 360         size.x = 150;
 361     }
 362     return size;
 363 }
 364
 365 void wxSlider::DoSetSize(int x, int y, int w, int h, int sizeFlags)
 366 {
 367     int  xborder, yborder;
 368     int  minValWidth, maxValWidth, textwidth, textheight;
 369     int  sliderBreadth;
 370
 371     xborder = yborder = 0;
 372
 373     if (GetWindowStyle() & wxSL_LABELS)
 374     {
 375         //Labels have this control's parent as their parent
 376         //so if this control is not at 0,0 relative to the parent
 377         //the labels need to know the position of this control
 378         //relative to its parent in order to size properly, so
 379         //move the control first so we can use GetPosition()
 380         wxControl::DoSetSize( x, y , w , h ,sizeFlags ) ;
 381
 382         wxString text;
 383         int ht;
 384
 385         // Get maximum text label width and height
 386         text.Printf(wxT("%d"), m_rangeMin);
 387         GetTextExtent(text, &minValWidth, &textheight);
 388         text.Printf(wxT("%d"), m_rangeMax);
 389         GetTextExtent(text, &maxValWidth, &ht);
 390         if(ht > textheight) {
 391             textheight = ht;
 392         }
 393         textwidth = (minValWidth > maxValWidth ? minValWidth : maxValWidth);
 394
 395         xborder = textwidth + wxSLIDER_BORDERTEXT;
 396         yborder = textheight + wxSLIDER_BORDERTEXT;
 397
 398         // Get slider breadth
 399         if(GetWindowStyle() & wxSL_AUTOTICKS) {
 400             sliderBreadth = wxSLIDER_DIMENSIONACROSS_WITHTICKMARKS;
 401         }
 402         else {
 403             sliderBreadth = wxSLIDER_DIMENSIONACROSS_ARROW;
 404         }
 405
 406         if(GetWindowStyle() & wxSL_VERTICAL)
 407         {
 408             h = h - yborder ;
 409
 410             if ( m_macMinimumStatic )
 411                 m_macMinimumStatic->Move(GetPosition().x + sliderBreadth + wxSLIDER_BORDERTEXT,
 412                 GetPosition().y + h - yborder);
 413             if ( m_macMaximumStatic )
 414                 m_macMaximumStatic->Move(GetPosition().x + sliderBreadth + wxSLIDER_BORDERTEXT, GetPosition().y + 0);
 415             if ( m_macValueStatic )
 416                 m_macValueStatic->Move(GetPosition().x, GetPosition().y + h );
 417         }
 418         else
 419         {
 420             w = w - xborder ;
 421             if ( m_macMinimumStatic )
 422                 m_macMinimumStatic->Move(GetPosition().x + 0, GetPosition().y + sliderBreadth + wxSLIDER_BORDERTEXT);
 423             if ( m_macMaximumStatic )
 424                 m_macMaximumStatic->Move(GetPosition().x + w - (maxValWidth/2),
 425                 GetPosition().y + sliderBreadth + wxSLIDER_BORDERTEXT);
 426             if ( m_macValueStatic )
 427                 m_macValueStatic->Move(GetPosition().x + w, GetPosition().y + 0);
 428         }
 429     }
 430     //If the control has labels, we still need to call this again because
 431     //the labels alter the control's w and h values.
 432     wxControl::DoSetSize( x, y , w , h ,sizeFlags ) ;
 433
 434 }
 435
 436 void wxSlider::DoMoveWindow(int x, int y, int width, int height)
 437 {
 438     wxControl::DoMoveWindow(x,y,width,height) ;
 439 }
 440
 441 #endif // wxUSE_SLIDER