src/mac/slider.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        slider.cpp
   3 // Purpose:     wxSlider
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows 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
  42 // Slider
  43 wxSlider::wxSlider()
  44 {
  45   m_pageSize = 1;
  46   m_lineSize = 1;
  47   m_rangeMax = 0;
  48   m_rangeMin = 0;
  49   m_tickFreq = 0;
  50 }
  51
  52 extern ControlActionUPP wxMacLiveScrollbarActionUPP ;
  53
  54 bool wxSlider::Create(wxWindow *parent, wxWindowID id,
  55            int value, int minValue, int maxValue,
  56            const wxPoint& pos,
  57            const wxSize& size, long style,
  58            const wxValidator& validator,
  59            const wxString& name)
  60 {
  61      Rect bounds ;
  62      Str255 title ;
  63      SInt16 procID;
  64
  65      m_macMinimumStatic = NULL ;
  66      m_macMaximumStatic = NULL ;
  67      m_macValueStatic = NULL ;
  68
  69
  70      m_lineSize = 1;
  71      m_tickFreq = 0;
  72
  73      m_rangeMax = maxValue;
  74      m_rangeMin = minValue;
  75
  76      m_pageSize = (int)((maxValue-minValue)/10);
  77
  78      MacPreControlCreate( parent, id, "", pos, size, style,
  79                           validator, name, &bounds, title );
  80
  81      procID = kControlSliderProc + kControlSliderLiveFeedback;
  82      if(style & wxSL_AUTOTICKS) {
  83          procID += kControlSliderHasTickMarks;
  84     }
  85
  86
  87      m_macControl = ::NewControl( parent->GetMacRootWindow(), &bounds, title, false,
  88                                    value, minValue, maxValue, procID, (long) this);
  89
  90      wxASSERT_MSG( m_macControl != NULL , "No valid mac control" ) ;
  91
  92      ::SetControlAction( m_macControl , wxMacLiveScrollbarActionUPP ) ;
  93
  94      if(style & wxSL_LABELS)
  95      {
  96          m_macMinimumStatic = new wxStaticText( this, -1, "" );
  97          m_macMaximumStatic = new wxStaticText( this, -1, "" );
  98          m_macValueStatic = new wxStaticText( this, -1, "" );
  99          SetRange(minValue, maxValue);
 100          SetValue(value);
 101     }
 102
 103      else {
 104          m_macMinimumStatic = NULL ;
 105          m_macMaximumStatic = NULL ;
 106          m_macValueStatic = NULL ;
 107      }
 108
 109      if(style & wxSL_VERTICAL) {
 110          SetSizeHints(10, -1, 10, -1);  // Forces SetSize to use the proper width
 111      }
 112      else {
 113          SetSizeHints(-1, 10, -1, 10);  // Forces SetSize to use the proper height
 114      }
 115      // NB!  SetSizeHints is overloaded by wxSlider and will substitute 10 with the
 116      // proper dimensions, it also means other people cannot bugger the slider with
 117      // other values
 118
 119      MacPostControlCreate() ;
 120
 121      return true;
 122 }
 123
 124 wxSlider::~wxSlider()
 125 {
 126 }
 127
 128 int wxSlider::GetValue() const
 129 {
 130         return GetControlValue( m_macControl) ;
 131 }
 132
 133 void wxSlider::SetValue(int value)
 134 {
 135         wxString valuestring ;
 136         valuestring.Printf( "%d" , value ) ;
 137         if ( m_macValueStatic )
 138                 m_macValueStatic->SetLabel( valuestring ) ;
 139         SetControlValue( m_macControl , value ) ;
 140 }
 141
 142 void wxSlider::SetRange(int minValue, int maxValue)
 143 {
 144   wxString value;
 145
 146   m_rangeMin = minValue;
 147   m_rangeMax = maxValue;
 148
 149   SetControlMinimum(m_macControl, m_rangeMin);
 150   SetControlMaximum(m_macControl, m_rangeMax);
 151
 152   if(m_macMinimumStatic) {
 153     value.Printf("%d", m_rangeMin);
 154     m_macMinimumStatic->SetLabel(value);
 155   }
 156   if(m_macMaximumStatic) {
 157     value.Printf("%d", m_rangeMax);
 158     m_macMaximumStatic->SetLabel(value);
 159   }
 160   SetValue(m_rangeMin);
 161 }
 162
 163 // For trackbars only
 164 void wxSlider::SetTickFreq(int n, int pos)
 165 {
 166     // TODO
 167     m_tickFreq = n;
 168 }
 169
 170 void wxSlider::SetPageSize(int pageSize)
 171 {
 172     // TODO
 173     m_pageSize = pageSize;
 174 }
 175
 176 int wxSlider::GetPageSize() const
 177 {
 178     return m_pageSize;
 179 }
 180
 181 void wxSlider::ClearSel()
 182 {
 183     // TODO
 184 }
 185
 186 void wxSlider::ClearTicks()
 187 {
 188     // TODO
 189 }
 190
 191 void wxSlider::SetLineSize(int lineSize)
 192 {
 193     m_lineSize = lineSize;
 194     // TODO
 195 }
 196
 197 int wxSlider::GetLineSize() const
 198 {
 199     // TODO
 200     return 0;
 201 }
 202
 203 int wxSlider::GetSelEnd() const
 204 {
 205     // TODO
 206     return 0;
 207 }
 208
 209 int wxSlider::GetSelStart() const
 210 {
 211     // TODO
 212     return 0;
 213 }
 214
 215 void wxSlider::SetSelection(int minPos, int maxPos)
 216 {
 217     // TODO
 218 }
 219
 220 void wxSlider::SetThumbLength(int len)
 221 {
 222     // TODO
 223 }
 224
 225 int wxSlider::GetThumbLength() const
 226 {
 227     // TODO
 228     return 0;
 229 }
 230
 231 void wxSlider::SetTick(int tickPos)
 232 {
 233     // TODO
 234 }
 235
 236 void wxSlider::Command (wxCommandEvent & event)
 237 {
 238   SetValue (event.GetInt());
 239   ProcessCommand (event);
 240 }
 241
 242 void wxSlider::MacHandleControlClick( ControlHandle control , SInt16 controlpart )
 243 {
 244         SInt16 value = ::GetControlValue( m_macControl ) ;
 245
 246         SetValue( value ) ;
 247
 248         wxScrollEvent event(wxEVT_SCROLL_THUMBTRACK, m_windowId);
 249         event.SetPosition(value);
 250         event.SetEventObject( this );
 251         GetEventHandler()->ProcessEvent(event);
 252
 253   wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, m_windowId );
 254   cevent.SetInt( value );
 255   cevent.SetEventObject( this );
 256
 257   GetEventHandler()->ProcessEvent( cevent );
 258 }
 259
 260  /* This is overloaded in wxSlider so that the proper width/height will always be used
 261   * for the slider different values would cause redrawing and mouse detection problems */
 262  void wxSlider::SetSizeHints( int minW, int minH,
 263                               int maxW , int maxH ,
 264                               int incW , int incH )
 265  {
 266      wxSize size = GetBestSize();
 267
 268      if(GetWindowStyle() & wxSL_VERTICAL) {
 269          wxWindow::SetSizeHints(size.x, minH, size.x, maxH, incW, incH);
 270      }
 271      else {
 272          wxWindow::SetSizeHints(minW, size.y, maxW, size.y, incW, incH);
 273      }
 274  }
 275
 276  wxSize wxSlider::DoGetBestSize() const
 277  {
 278      wxSize size;
 279      int textwidth, textheight;
 280
 281      if(GetWindowStyle() & wxSL_LABELS)
 282      {
 283          wxString text;
 284          int ht, wd;
 285
 286          // Get maximum text label width and height
 287          text.Printf("%d", m_rangeMin);
 288          GetTextExtent(text, &textwidth, &textheight);
 289          text.Printf("%d", m_rangeMax);
 290          GetTextExtent(text, &wd, &ht);
 291          if(ht > textheight) {
 292              textheight = ht;
 293          }
 294          if (wd > textwidth) {
 295              textwidth = wd;
 296          }
 297      }
 298
 299      if(GetWindowStyle() & wxSL_VERTICAL)
 300      {
 301          if(GetWindowStyle() & wxSL_AUTOTICKS) {
 302              size.x = wxSLIDER_DIMENSIONACROSS_WITHTICKMARKS;
 303          }
 304          else {
 305              size.x = wxSLIDER_DIMENSIONACROSS_ARROW;
 306          }
 307          if(GetWindowStyle() & wxSL_LABELS) {
 308              size.x += textwidth + wxSLIDER_BORDERTEXT;
 309          }
 310          size.y = 150;
 311      }
 312      else
 313      {
 314          if(GetWindowStyle() & wxSL_AUTOTICKS) {
 315              size.y = wxSLIDER_DIMENSIONACROSS_WITHTICKMARKS;
 316          }
 317          else {
 318              size.y = wxSLIDER_DIMENSIONACROSS_ARROW;
 319          }
 320          if(GetWindowStyle() & wxSL_LABELS) {
 321              size.y += textheight + wxSLIDER_BORDERTEXT;
 322          }
 323          size.x = 150;
 324      }
 325      return size;
 326  }
 327
 328  void wxSlider::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 329  {
 330      Rect oldbounds, newbounds;
 331      int new_x, new_y, new_width, new_height;
 332      int mac_x, mac_y;
 333
 334      new_x = m_x;
 335      new_y = m_y;
 336      new_width  = m_width;
 337      new_height = m_height;
 338
 339      if (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)
 340      {
 341          new_x      = x;
 342          new_y      = y;
 343          new_width  = width;
 344          new_height = height;
 345      }
 346      else
 347      {
 348          if (x != -1)      new_x      = x;
 349          if (y != -1)      new_y      = y;
 350          if (width != -1)  new_width  = width;
 351          if (height != -1) new_height = height;
 352      }
 353
 354      if(sizeFlags & wxSIZE_AUTO)
 355      {
 356          wxSize size = GetBestSize();
 357          if (sizeFlags & wxSIZE_AUTO_WIDTH)
 358          {
 359              if (width == -1)   new_width = size.x;
 360          }
 361          if (sizeFlags & wxSIZE_AUTO_HEIGHT)
 362          {
 363              if (height == -1)   new_height = size.y;
 364          }
 365      }
 366
 367      AdjustForParentClientOrigin(new_x, new_y, sizeFlags);
 368
 369      mac_x = new_x;
 370      mac_y = new_y;
 371      if(GetParent()) {
 372          GetParent()->MacClientToRootWindow(&mac_x, &mac_y);
 373      }
 374
 375      GetControlBounds(m_macControl, &oldbounds);
 376      oldbounds.right = oldbounds.left + m_width;
 377      oldbounds.bottom = oldbounds.top + m_height;
 378
 379      bool doMove = false;
 380      bool doResize = false;
 381
 382      if ( mac_x != oldbounds.left || mac_y != oldbounds.top )
 383      {
 384          doMove = true ;
 385      }
 386      if ( new_width != m_width || new_height != m_height )
 387      {
 388          doResize = true ;
 389      }
 390
 391      if ( doMove || doResize )
 392      {
 393          // Ensure resize is within constraints
 394          if ((m_minWidth != -1) && (new_width < m_minWidth)) {
 395              new_width = m_minWidth;
 396          }
 397          if ((m_minHeight != -1) && (new_height < m_minHeight)) {
 398              new_height = m_minHeight;
 399          }
 400          if ((m_maxWidth != -1) && (new_width > m_maxWidth)) {
 401              new_width = m_maxWidth;
 402          }
 403          if ((m_maxHeight != -1) && (new_height > m_maxHeight)) {
 404              new_height = m_maxHeight;
 405          }
 406
 407          DoMoveWindow(new_x, new_y, new_width, new_height);
 408
 409          // Update window at old and new positions
 410          SetRect(&newbounds, m_x, m_y, m_x + m_width, m_y + m_height);
 411          WindowRef rootwindow = GetMacRootWindow();
 412          InvalWindowRect( rootwindow , &oldbounds );
 413          InvalWindowRect( rootwindow , &newbounds );
 414
 415          if ( doMove )
 416          {
 417              wxMoveEvent event(wxPoint(m_x, m_y), m_windowId);
 418              event.SetEventObject(this);
 419              GetEventHandler()->ProcessEvent(event) ;
 420          }
 421          if ( doResize )
 422          {
 423              wxSizeEvent event(wxSize(m_width, m_height), m_windowId);
 424              event.SetEventObject(this);
 425              GetEventHandler()->ProcessEvent(event);
 426          }
 427      }
 428  }
 429
 430  void wxSlider::DoMoveWindow(int x, int y, int width, int height)
 431  {
 432      m_x = x;
 433      m_y = y;
 434      m_width  = width;
 435      m_height = height;
 436
 437      int  xborder, yborder;
 438      int  minValWidth, maxValWidth, textwidth, textheight;
 439      int  sliderBreadth;
 440
 441      xborder = yborder = 0;
 442
 443      if (GetWindowStyle() & wxSL_LABELS)
 444      {
 445          wxString text;
 446          int ht;
 447
 448          // Get maximum text label width and height
 449          text.Printf("%d", m_rangeMin);
 450          GetTextExtent(text, &minValWidth, &textheight);
 451          text.Printf("%d", m_rangeMax);
 452          GetTextExtent(text, &maxValWidth, &ht);
 453          if(ht > textheight) {
 454              textheight = ht;
 455          }
 456          textwidth = (minValWidth > maxValWidth ? minValWidth : maxValWidth);
 457
 458          xborder = textwidth + wxSLIDER_BORDERTEXT;
 459          yborder = textheight + wxSLIDER_BORDERTEXT;
 460
 461          // Get slider breadth
 462          if(GetWindowStyle() & wxSL_AUTOTICKS) {
 463              sliderBreadth = wxSLIDER_DIMENSIONACROSS_WITHTICKMARKS;
 464          }
 465          else {
 466              sliderBreadth = wxSLIDER_DIMENSIONACROSS_ARROW;
 467          }
 468
 469          if(GetWindowStyle() & wxSL_VERTICAL)
 470          {
 471              m_macMinimumStatic->Move(sliderBreadth + wxSLIDER_BORDERTEXT,
 472                                       height - yborder - textheight);
 473              m_macMaximumStatic->Move(sliderBreadth + wxSLIDER_BORDERTEXT, 0);
 474              m_macValueStatic->Move(0, height - textheight);
 475          }
 476          else
 477          {
 478              m_macMinimumStatic->Move(0, sliderBreadth + wxSLIDER_BORDERTEXT);
 479              m_macMaximumStatic->Move(width - xborder - maxValWidth / 2,
 480                                       sliderBreadth + wxSLIDER_BORDERTEXT);
 481              m_macValueStatic->Move(width - textwidth, 0);
 482          }
 483      }
 484
 485      if(GetParent()) {
 486          GetParent()->MacClientToRootWindow(&x, &y);
 487      }
 488      UMAMoveControl(m_macControl, x, y);
 489      UMASizeControl(m_macControl, width - xborder, height - yborder);
 490 }