src/mac/classic/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:       wxWidgets licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "slider.h"
  14 #endif
  15
  16 #include "wx/slider.h"
  17 #include "wx/mac/uma.h"
  18
  19 #if !USE_SHARED_LIBRARY
  20 IMPLEMENT_DYNAMIC_CLASS(wxSlider, wxControl)
  21
  22 BEGIN_EVENT_TABLE(wxSlider, wxControl)
  23 END_EVENT_TABLE()
  24 #endif
  25
  26  // The dimensions of the different styles of sliders (From Aqua document)
  27 #define wxSLIDER_DIMENSIONACROSS 15
  28 #define wxSLIDER_DIMENSIONACROSS_WITHTICKMARKS 24
  29 #define wxSLIDER_DIMENSIONACROSS_ARROW 18
  30
  31 // Distance between slider and text
  32 #define wxSLIDER_BORDERTEXT 5
  33
  34 /* NB!  The default orientation for a slider is horizontal however if the user specifies
  35  * some slider styles but dosen't specify the orientation we have to assume he wants a
  36  * horizontal one.  Therefore in this file when testing for the sliders orientation
  37  * vertical is tested for if this is not set then we use the horizontal one
  38  * eg.  if(GetWindowStyle() & wxSL_VERTICAL) {}  else { horizontal case }>
  39  */
  40
  41  // Slider
  42  wxSlider::wxSlider()
  43 {
  44     m_pageSize = 1;
  45     m_lineSize = 1;
  46     m_rangeMax = 0;
  47     m_rangeMin = 0;
  48     m_tickFreq = 0;
  49 }
  50
  51 extern ControlActionUPP wxMacLiveScrollbarActionUPP ;
  52
  53 bool wxSlider::Create(wxWindow *parent, wxWindowID id,
  54                       int value, int minValue, int maxValue,
  55                       const wxPoint& pos,
  56                       const wxSize& size, long style,
  57                       const wxValidator& validator,
  58                       const wxString& name)
  59 {
  60     if ( !wxControl::Create(parent, id, pos, size, style, validator, name) )
  61         return false;
  62
  63     Rect bounds ;
  64     Str255 title ;
  65     SInt16 procID;
  66
  67     m_macMinimumStatic = NULL ;
  68     m_macMaximumStatic = NULL ;
  69     m_macValueStatic = NULL ;
  70
  71
  72     m_lineSize = 1;
  73     m_tickFreq = 0;
  74
  75     m_rangeMax = maxValue;
  76     m_rangeMin = minValue;
  77
  78     m_pageSize = (int)((maxValue-minValue)/10);
  79
  80     MacPreControlCreate( parent, id, wxEmptyString, pos, size, style,
  81         validator, name, &bounds, title );
  82
  83     procID = kControlSliderProc + kControlSliderLiveFeedback;
  84     if(style & wxSL_AUTOTICKS) {
  85         procID += kControlSliderHasTickMarks;
  86     }
  87
  88
  89     m_macControl = ::NewControl( MAC_WXHWND(parent->MacGetRootWindow()), &bounds, title, false,
  90         value, minValue, maxValue, procID, (long) this);
  91
  92     wxASSERT_MSG( (ControlHandle) m_macControl != NULL , wxT("No valid mac control") ) ;
  93
  94     ::SetControlAction( (ControlHandle) m_macControl , wxMacLiveScrollbarActionUPP ) ;
  95
  96     if(style & wxSL_LABELS)
  97     {
  98         m_macMinimumStatic = new wxStaticText( this, -1, wxEmptyString );
  99         m_macMaximumStatic = new wxStaticText( this, -1, wxEmptyString );
 100         m_macValueStatic = new wxStaticText( this, -1, wxEmptyString );
 101         SetRange(minValue, maxValue);
 102         SetValue(value);
 103     }
 104
 105     else {
 106         m_macMinimumStatic = NULL ;
 107         m_macMaximumStatic = NULL ;
 108         m_macValueStatic = NULL ;
 109     }
 110
 111     if(style & wxSL_VERTICAL) {
 112         SetSizeHints(10, -1, 10, -1);  // Forces SetSize to use the proper width
 113     }
 114     else {
 115         SetSizeHints(-1, 10, -1, 10);  // Forces SetSize to use the proper height
 116     }
 117     // NB!  SetSizeHints is overloaded by wxSlider and will substitute 10 with the
 118     // proper dimensions, it also means other people cannot bugger the slider with
 119     // other values
 120
 121     MacPostControlCreate() ;
 122
 123     return true;
 124 }
 125
 126 wxSlider::~wxSlider()
 127 {
 128 }
 129
 130 int wxSlider::GetValue() const
 131 {
 132     return GetControl32BitValue( (ControlHandle) m_macControl) ;
 133 }
 134
 135 void wxSlider::SetValue(int value)
 136 {
 137     wxString valuestring ;
 138     valuestring.Printf( wxT("%d") , value ) ;
 139     if ( m_macValueStatic )
 140         m_macValueStatic->SetLabel( valuestring ) ;
 141     SetControl32BitValue( (ControlHandle) m_macControl , value ) ;
 142 }
 143
 144 void wxSlider::SetRange(int minValue, int maxValue)
 145 {
 146     wxString value;
 147
 148     m_rangeMin = minValue;
 149     m_rangeMax = maxValue;
 150
 151     SetControl32BitMinimum( (ControlHandle) m_macControl, m_rangeMin);
 152     SetControl32BitMaximum( (ControlHandle) m_macControl, m_rangeMax);
 153
 154     if(m_macMinimumStatic) {
 155         value.Printf(wxT("%d"), m_rangeMin);
 156         m_macMinimumStatic->SetLabel(value);
 157     }
 158     if(m_macMaximumStatic) {
 159         value.Printf(wxT("%d"), m_rangeMax);
 160         m_macMaximumStatic->SetLabel(value);
 161     }
 162     SetValue(m_rangeMin);
 163 }
 164
 165 // For trackbars only
 166 void wxSlider::SetTickFreq(int n, int pos)
 167 {
 168     // TODO
 169     m_tickFreq = n;
 170 }
 171
 172 void wxSlider::SetPageSize(int pageSize)
 173 {
 174     // TODO
 175     m_pageSize = pageSize;
 176 }
 177
 178 int wxSlider::GetPageSize() const
 179 {
 180     return m_pageSize;
 181 }
 182
 183 void wxSlider::ClearSel()
 184 {
 185     // TODO
 186 }
 187
 188 void wxSlider::ClearTicks()
 189 {
 190     // TODO
 191 }
 192
 193 void wxSlider::SetLineSize(int lineSize)
 194 {
 195     m_lineSize = lineSize;
 196     // TODO
 197 }
 198
 199 int wxSlider::GetLineSize() const
 200 {
 201     // TODO
 202     return 0;
 203 }
 204
 205 int wxSlider::GetSelEnd() const
 206 {
 207     // TODO
 208     return 0;
 209 }
 210
 211 int wxSlider::GetSelStart() const
 212 {
 213     // TODO
 214     return 0;
 215 }
 216
 217 void wxSlider::SetSelection(int minPos, int maxPos)
 218 {
 219     // TODO
 220 }
 221
 222 void wxSlider::SetThumbLength(int len)
 223 {
 224     // TODO
 225 }
 226
 227 int wxSlider::GetThumbLength() const
 228 {
 229     // TODO
 230     return 0;
 231 }
 232
 233 void wxSlider::SetTick(int tickPos)
 234 {
 235     // TODO
 236 }
 237
 238 void wxSlider::Command (wxCommandEvent & event)
 239 {
 240     SetValue (event.GetInt());
 241     ProcessCommand (event);
 242 }
 243
 244 void wxSlider::MacHandleControlClick( WXWidget control , wxInt16 controlpart, bool mouseStillDown )
 245 {
 246     SInt16 value = ::GetControl32BitValue( (ControlHandle) m_macControl ) ;
 247
 248     SetValue( value ) ;
 249
 250     wxEventType scrollEvent = wxEVT_NULL ;
 251
 252    if ( mouseStillDown )
 253         scrollEvent = wxEVT_SCROLL_THUMBTRACK;
 254     else
 255         scrollEvent = wxEVT_SCROLL_THUMBRELEASE;
 256
 257     wxScrollEvent event(scrollEvent, m_windowId);
 258     event.SetPosition(value);
 259     event.SetEventObject( this );
 260     GetEventHandler()->ProcessEvent(event);
 261
 262     wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, m_windowId );
 263     cevent.SetInt( value );
 264     cevent.SetEventObject( this );
 265
 266     GetEventHandler()->ProcessEvent( cevent );
 267 }
 268
 269 /* This is overloaded in wxSlider so that the proper width/height will always be used
 270 * for the slider different values would cause redrawing and mouse detection problems */
 271 void wxSlider::SetSizeHints( int minW, int minH,
 272                             int maxW , int maxH ,
 273                             int incW , int incH )
 274 {
 275     wxSize size = GetBestSize();
 276
 277     if(GetWindowStyle() & wxSL_VERTICAL) {
 278         wxWindow::SetSizeHints(size.x, minH, size.x, maxH, incW, incH);
 279     }
 280     else {
 281         wxWindow::SetSizeHints(minW, size.y, maxW, size.y, incW, incH);
 282     }
 283 }
 284
 285 wxSize wxSlider::DoGetBestSize() const
 286 {
 287     wxSize size;
 288     int textwidth, textheight;
 289
 290     if(GetWindowStyle() & wxSL_LABELS)
 291     {
 292         wxString text;
 293         int ht, wd;
 294
 295         // Get maximum text label width and height
 296         text.Printf(wxT("%d"), m_rangeMin);
 297         GetTextExtent(text, &textwidth, &textheight);
 298         text.Printf(wxT("%d"), m_rangeMax);
 299         GetTextExtent(text, &wd, &ht);
 300         if(ht > textheight) {
 301             textheight = ht;
 302         }
 303         if (wd > textwidth) {
 304             textwidth = wd;
 305         }
 306     }
 307
 308     if(GetWindowStyle() & wxSL_VERTICAL)
 309     {
 310         if(GetWindowStyle() & wxSL_AUTOTICKS) {
 311             size.x = wxSLIDER_DIMENSIONACROSS_WITHTICKMARKS;
 312         }
 313         else {
 314             size.x = wxSLIDER_DIMENSIONACROSS_ARROW;
 315         }
 316         if(GetWindowStyle() & wxSL_LABELS) {
 317             size.x += textwidth + wxSLIDER_BORDERTEXT;
 318         }
 319         size.y = 150;
 320     }
 321     else
 322     {
 323         if(GetWindowStyle() & wxSL_AUTOTICKS) {
 324             size.y = wxSLIDER_DIMENSIONACROSS_WITHTICKMARKS;
 325         }
 326         else {
 327             size.y = wxSLIDER_DIMENSIONACROSS_ARROW;
 328         }
 329         if(GetWindowStyle() & wxSL_LABELS) {
 330             size.y += textheight + wxSLIDER_BORDERTEXT;
 331         }
 332         size.x = 150;
 333     }
 334     return size;
 335 }
 336
 337 void wxSlider::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 338 {
 339     wxControl::DoSetSize( x, y , width , height ,sizeFlags ) ;
 340 }
 341
 342 void wxSlider::MacUpdateDimensions()
 343 {
 344     // actually in the current systems this should never be possible, but later reparenting
 345     // may become a reality
 346
 347     if ( (ControlHandle) m_macControl == NULL )
 348         return ;
 349
 350     if ( GetParent() == NULL )
 351         return ;
 352
 353     WindowRef rootwindow = (WindowRef) MacGetRootWindow() ;
 354     if ( rootwindow == NULL )
 355         return ;
 356
 357     int  xborder, yborder;
 358     int  minValWidth, maxValWidth, textwidth, textheight;
 359     int  sliderBreadth;
 360
 361     xborder = yborder = 0;
 362
 363     if (GetWindowStyle() & wxSL_LABELS)
 364     {
 365         wxString text;
 366         int ht;
 367
 368         // Get maximum text label width and height
 369         text.Printf(wxT("%d"), m_rangeMin);
 370         GetTextExtent(text, &minValWidth, &textheight);
 371         text.Printf(wxT("%d"), m_rangeMax);
 372         GetTextExtent(text, &maxValWidth, &ht);
 373         if(ht > textheight) {
 374             textheight = ht;
 375         }
 376         textwidth = (minValWidth > maxValWidth ? minValWidth : maxValWidth);
 377
 378         xborder = textwidth + wxSLIDER_BORDERTEXT;
 379         yborder = textheight + wxSLIDER_BORDERTEXT;
 380
 381         // Get slider breadth
 382         if(GetWindowStyle() & wxSL_AUTOTICKS) {
 383             sliderBreadth = wxSLIDER_DIMENSIONACROSS_WITHTICKMARKS;
 384         }
 385         else {
 386             sliderBreadth = wxSLIDER_DIMENSIONACROSS_ARROW;
 387         }
 388
 389         if(GetWindowStyle() & wxSL_VERTICAL)
 390         {
 391             m_macMinimumStatic->Move(sliderBreadth + wxSLIDER_BORDERTEXT,
 392                 m_height - yborder - textheight);
 393             m_macMaximumStatic->Move(sliderBreadth + wxSLIDER_BORDERTEXT, 0);
 394             m_macValueStatic->Move(0, m_height - textheight);
 395         }
 396         else
 397         {
 398             m_macMinimumStatic->Move(0, sliderBreadth + wxSLIDER_BORDERTEXT);
 399             m_macMaximumStatic->Move(m_width - xborder - maxValWidth / 2,
 400                 sliderBreadth + wxSLIDER_BORDERTEXT);
 401             m_macValueStatic->Move(m_width - textwidth, 0);
 402         }
 403     }
 404
 405     Rect oldBounds ;
 406     GetControlBounds( (ControlHandle) m_macControl , &oldBounds ) ;
 407
 408     int new_x = m_x + MacGetLeftBorderSize() + m_macHorizontalBorder ;
 409     int new_y = m_y + MacGetTopBorderSize() + m_macVerticalBorder ;
 410     int new_width = m_width - MacGetLeftBorderSize() - MacGetRightBorderSize() - 2 * m_macHorizontalBorder - xborder ;
 411     int new_height = m_height - MacGetTopBorderSize() - MacGetBottomBorderSize() - 2 * m_macVerticalBorder - yborder ;
 412
 413     GetParent()->MacWindowToRootWindow( & new_x , & new_y ) ;
 414     bool doMove = new_x != oldBounds.left || new_y != oldBounds.top ;
 415     bool doResize =  ( oldBounds.right - oldBounds.left ) != new_width || (oldBounds.bottom - oldBounds.top ) != new_height ;
 416     if ( doMove || doResize )
 417     {
 418         InvalWindowRect( rootwindow, &oldBounds ) ;
 419         if ( doMove )
 420         {
 421             UMAMoveControl( (ControlHandle) m_macControl , new_x , new_y ) ;
 422         }
 423         if ( doResize )
 424         {
 425             UMASizeControl( (ControlHandle) m_macControl , new_width , new_height ) ;
 426         }
 427     }
 428 }
 429
 430 void wxSlider::DoMoveWindow(int x, int y, int width, int height)
 431 {
 432     wxControl::DoMoveWindow(x,y,width,height) ;
 433 }