src/osx/radiobox_osx.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/radiobox.cpp
   3 // Purpose:     wxRadioBox
   4 // Author:      Stefan Csomor
   5 // Modified by: JS Lair (99/11/15) first implementation
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #if wxUSE_RADIOBOX
  15
  16 #include "wx/radiobox.h"
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/radiobut.h"
  20     #include "wx/arrstr.h"
  21 #endif
  22
  23 #include "wx/osx/private.h"
  24
  25 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
  26
  27
  28 BEGIN_EVENT_TABLE(wxRadioBox, wxControl)
  29     EVT_RADIOBUTTON( wxID_ANY , wxRadioBox::OnRadioButton )
  30 END_EVENT_TABLE()
  31
  32
  33 void wxRadioBox::OnRadioButton( wxCommandEvent &outer )
  34 {
  35     if ( outer.IsChecked() )
  36     {
  37         wxCommandEvent event( wxEVT_COMMAND_RADIOBOX_SELECTED, m_windowId );
  38         int i = GetSelection() ;
  39         event.SetInt(i);
  40         event.SetString(GetString(i));
  41         event.SetEventObject( this );
  42         ProcessCommand(event);
  43     }
  44 }
  45
  46 wxRadioBox::wxRadioBox()
  47 {
  48     m_noItems = 0;
  49     m_noRowsOrCols = 0;
  50     m_radioButtonCycle = NULL;
  51 }
  52
  53 wxRadioBox::~wxRadioBox()
  54 {
  55     SendDestroyEvent();
  56
  57     wxRadioButton *next, *current;
  58
  59     current = m_radioButtonCycle->NextInCycle();
  60     if (current != NULL)
  61     {
  62         while (current != m_radioButtonCycle)
  63         {
  64             next = current->NextInCycle();
  65             delete current;
  66
  67             current = next;
  68         }
  69
  70         delete current;
  71     }
  72 }
  73
  74 // Create the radiobox for two-step construction
  75
  76 bool wxRadioBox::Create( wxWindow *parent,
  77     wxWindowID id, const wxString& label,
  78     const wxPoint& pos, const wxSize& size,
  79     const wxArrayString& choices,
  80     int majorDim, long style,
  81     const wxValidator& val, const wxString& name )
  82 {
  83     wxCArrayString chs(choices);
  84
  85     return Create(
  86         parent, id, label, pos, size, chs.GetCount(),
  87         chs.GetStrings(), majorDim, style, val, name);
  88 }
  89
  90 bool wxRadioBox::Create( wxWindow *parent,
  91     wxWindowID id, const wxString& label,
  92     const wxPoint& pos, const wxSize& size,
  93     int n, const wxString choices[],
  94     int majorDim, long style,
  95     const wxValidator& val, const wxString& name )
  96 {
  97     m_macIsUserPane = false ;
  98
  99     if ( !wxControl::Create( parent, id, pos, size, style, val, name ) )
 100         return false;
 101
 102     int i;
 103
 104     m_noItems = (unsigned int)n;
 105     m_noRowsOrCols = majorDim;
 106     m_radioButtonCycle = NULL;
 107
 108     SetMajorDim( majorDim == 0 ? n : majorDim, style );
 109
 110     m_labelOrig = m_label = label;
 111
 112     m_peer = wxWidgetImpl::CreateGroupBox( this, parent, id, label, pos, size, style, GetExtraStyle() );
 113
 114     for (i = 0; i < n; i++)
 115     {
 116         wxRadioButton *radBtn = new wxRadioButton(
 117             this,
 118             wxID_ANY,
 119             GetLabelText(choices[i]),
 120             wxPoint( 5, 20 * i + 10 ),
 121             wxDefaultSize,
 122             i == 0 ? wxRB_GROUP : 0 );
 123
 124         if ( i == 0 )
 125             m_radioButtonCycle = radBtn;
 126 //        m_radioButtonCycle = radBtn->AddInCycle( m_radioButtonCycle );
 127     }
 128
 129     SetSelection( 0 );
 130     MacPostControlCreate( pos, size );
 131
 132     return true;
 133 }
 134
 135 // Enables or disables the entire radiobox
 136 //
 137 bool wxRadioBox::Enable(bool enable)
 138 {
 139     wxRadioButton *current;
 140
 141     if (!wxControl::Enable( enable ))
 142         return false;
 143
 144     current = m_radioButtonCycle;
 145     for (unsigned int i = 0; i < m_noItems; i++)
 146     {
 147         current->Enable( enable );
 148         current = current->NextInCycle();
 149     }
 150
 151     return true;
 152 }
 153
 154 // Enables or disables an given button
 155 //
 156 bool wxRadioBox::Enable(unsigned int item, bool enable)
 157 {
 158     if (!IsValid( item ))
 159         return false;
 160
 161     unsigned int i = 0;
 162     wxRadioButton *current = m_radioButtonCycle;
 163     while (i != item)
 164     {
 165         i++;
 166         current = current->NextInCycle();
 167     }
 168
 169     return current->Enable( enable );
 170 }
 171
 172 bool wxRadioBox::IsItemEnabled(unsigned int item) const
 173 {
 174     if (!IsValid( item ))
 175         return false;
 176
 177     unsigned int i = 0;
 178     wxRadioButton *current = m_radioButtonCycle;
 179     while (i != item)
 180     {
 181         i++;
 182         current = current->NextInCycle();
 183     }
 184
 185     return current->IsEnabled();
 186 }
 187
 188 // Returns the radiobox label
 189 //
 190 wxString wxRadioBox::GetLabel() const
 191 {
 192     return wxControl::GetLabel();
 193 }
 194
 195 // Returns the label for the given button
 196 //
 197 wxString wxRadioBox::GetString(unsigned int item) const
 198 {
 199     wxRadioButton *current;
 200
 201     if (!IsValid( item ))
 202         return wxEmptyString;
 203
 204     unsigned int i = 0;
 205     current = m_radioButtonCycle;
 206     while (i != item)
 207     {
 208         i++;
 209         current = current->NextInCycle();
 210     }
 211
 212     return current->GetLabel();
 213 }
 214
 215 // Returns the zero-based position of the selected button
 216 //
 217 int wxRadioBox::GetSelection() const
 218 {
 219     int i;
 220     wxRadioButton *current;
 221
 222     i = 0;
 223     current = m_radioButtonCycle;
 224     while (!current->GetValue())
 225     {
 226         i++;
 227         current = current->NextInCycle();
 228     }
 229
 230     return i;
 231 }
 232
 233 // Sets the radiobox label
 234 //
 235 void wxRadioBox::SetLabel(const wxString& label)
 236 {
 237     return wxControl::SetLabel( label );
 238 }
 239
 240 // Sets the label of a given button
 241 //
 242 void wxRadioBox::SetString(unsigned int item,const wxString& label)
 243 {
 244     if (!IsValid( item ))
 245         return;
 246
 247     unsigned int i = 0;
 248     wxRadioButton *current = m_radioButtonCycle;
 249     while (i != item)
 250     {
 251         i++;
 252         current = current->NextInCycle();
 253     }
 254
 255     return current->SetLabel( label );
 256 }
 257
 258 // Sets a button by passing the desired position. This does not cause
 259 // wxEVT_COMMAND_RADIOBOX_SELECTED event to get emitted
 260 //
 261 void wxRadioBox::SetSelection(int item)
 262 {
 263     int i;
 264     wxRadioButton *current;
 265
 266     if (!IsValid( item ))
 267         return;
 268
 269     i = 0;
 270     current = m_radioButtonCycle;
 271     while (i != item)
 272     {
 273         i++;
 274         current = current->NextInCycle();
 275     }
 276
 277     current->SetValue( true );
 278 }
 279
 280 // Shows or hides the entire radiobox
 281 //
 282 bool wxRadioBox::Show(bool show)
 283 {
 284     wxRadioButton *current;
 285
 286     current = m_radioButtonCycle;
 287     for (unsigned int i=0; i<m_noItems; i++)
 288     {
 289         current->Show( show );
 290         current = current->NextInCycle();
 291     }
 292
 293     wxControl::Show( show );
 294
 295     return true;
 296 }
 297
 298 // Shows or hides the given button
 299 //
 300 bool wxRadioBox::Show(unsigned int item, bool show)
 301 {
 302     if (!IsValid( item ))
 303         return false;
 304
 305     unsigned int i = 0;
 306     wxRadioButton *current = m_radioButtonCycle;
 307     while (i != item)
 308     {
 309         i++;
 310         current = current->NextInCycle();
 311     }
 312
 313     return current->Show( show );
 314 }
 315
 316 bool wxRadioBox::IsItemShown(unsigned int item) const
 317 {
 318     if (!IsValid( item ))
 319         return false;
 320
 321     unsigned int i = 0;
 322     wxRadioButton *current = m_radioButtonCycle;
 323     while (i != item)
 324     {
 325         i++;
 326         current = current->NextInCycle();
 327     }
 328
 329     return current->IsShown();
 330 }
 331
 332
 333 // Simulates the effect of the user issuing a command to the item
 334 //
 335 void wxRadioBox::Command( wxCommandEvent& event )
 336 {
 337     SetSelection( event.GetInt() );
 338     ProcessCommand( event );
 339 }
 340
 341 // Sets the selected button to receive keyboard input
 342 //
 343 void wxRadioBox::SetFocus()
 344 {
 345     wxRadioButton *current;
 346
 347     current = m_radioButtonCycle;
 348     while (!current->GetValue())
 349     {
 350         current = current->NextInCycle();
 351     }
 352
 353     current->SetFocus();
 354 }
 355
 356 // Simulates the effect of the user issuing a command to the item
 357 //
 358 #define RADIO_SIZE 20
 359
 360 void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 361 {
 362     int i;
 363     wxRadioButton *current;
 364
 365     // define the position
 366
 367     int x_current, y_current;
 368     int x_offset, y_offset;
 369     int widthOld, heightOld;
 370
 371     GetSize( &widthOld, &heightOld );
 372     GetPosition( &x_current, &y_current );
 373
 374     x_offset = x;
 375     y_offset = y;
 376     if (!(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 377     {
 378         if (x == wxDefaultCoord)
 379             x_offset = x_current;
 380         if (y == wxDefaultCoord)
 381             y_offset = y_current;
 382     }
 383
 384     // define size
 385     int charWidth, charHeight;
 386     int maxWidth, maxHeight;
 387     int eachWidth[128], eachHeight[128];
 388     int totWidth, totHeight;
 389
 390     GetTextExtent(
 391         wxT("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"),
 392         &charWidth, &charHeight );
 393
 394     charWidth /= 52;
 395
 396     maxWidth = -1;
 397     maxHeight = -1;
 398     for (unsigned int i = 0 ; i < m_noItems; i++)
 399     {
 400         GetTextExtent(GetString(i), &eachWidth[i], &eachHeight[i] );
 401         eachWidth[i] = (int)(eachWidth[i] + RADIO_SIZE);
 402         eachHeight[i] = (int) eachHeight[i];
 403
 404         if (maxWidth < eachWidth[i])
 405             maxWidth = eachWidth[i];
 406         if (maxHeight < eachHeight[i])
 407             maxHeight = eachHeight[i];
 408     }
 409
 410     totHeight = GetRowCount() * maxHeight + (GetRowCount() - 1) * maxHeight / 2;
 411     totWidth  = GetColumnCount() * (maxWidth + charWidth);
 412
 413     wxSize sz = DoGetSizeFromClientSize( wxSize( totWidth, totHeight ) ) ;
 414
 415     // change the width / height only when specified
 416     if ( width == wxDefaultCoord )
 417     {
 418         if ( sizeFlags & wxSIZE_AUTO_WIDTH )
 419             width = sz.x;
 420         else
 421             width = widthOld;
 422     }
 423
 424     if ( height == wxDefaultCoord )
 425     {
 426         if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
 427             height = sz.y;
 428         else
 429             height = heightOld;
 430     }
 431
 432     wxControl::DoSetSize( x_offset, y_offset, width, height, wxSIZE_AUTO );
 433
 434     // arrange radio buttons
 435     int x_start, y_start;
 436
 437     x_start = ( width - sz.x ) / 2;
 438     y_start = ( height - sz.y ) / 2;
 439
 440     x_offset = x_start;
 441     y_offset = y_start;
 442
 443     current = m_radioButtonCycle;
 444     for (i = 0 ; i < (int)m_noItems; i++)
 445     {
 446         // not to do for the zero button!
 447         if ((i > 0) && ((i % GetMajorDim()) == 0))
 448         {
 449             if (m_windowStyle & wxRA_SPECIFY_ROWS)
 450             {
 451                 x_offset += maxWidth + charWidth;
 452                 y_offset = y_start;
 453             }
 454             else
 455             {
 456                 x_offset = x_start;
 457                 y_offset += 3 * maxHeight / 2 ; //+ charHeight / 2
 458             }
 459         }
 460
 461         current->SetSize( x_offset, y_offset, eachWidth[i], eachHeight[i]);
 462         current = current->NextInCycle();
 463
 464         if (m_windowStyle & wxRA_SPECIFY_ROWS)
 465             y_offset += 3 * maxHeight / 2 ; // + charHeight / 2
 466         else
 467             x_offset += maxWidth + charWidth;
 468     }
 469 }
 470
 471 wxSize wxRadioBox::DoGetBestSize() const
 472 {
 473     int charWidth, charHeight;
 474     int maxWidth, maxHeight;
 475     int eachWidth, eachHeight;
 476     int totWidth, totHeight;
 477
 478     wxFont font = GetFont(); // GetParent()->GetFont()
 479     GetTextExtent(
 480         wxT("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"),
 481         &charWidth, &charHeight, NULL, NULL, &font );
 482
 483     charWidth /= 52;
 484
 485     maxWidth = -1;
 486     maxHeight = -1;
 487
 488     for (unsigned int i = 0 ; i < m_noItems; i++)
 489     {
 490         GetTextExtent(GetString(i), &eachWidth, &eachHeight, NULL, NULL, &font );
 491         eachWidth  = (int)(eachWidth + RADIO_SIZE);
 492         eachHeight = (int)eachHeight;
 493         if (maxWidth < eachWidth)
 494             maxWidth = eachWidth;
 495         if (maxHeight < eachHeight)
 496             maxHeight = eachHeight;
 497     }
 498
 499     totHeight = GetRowCount() * maxHeight + (GetRowCount() - 1) * maxHeight / 2;
 500     totWidth  = GetColumnCount() * (maxWidth + charWidth);
 501
 502     wxSize sz = DoGetSizeFromClientSize( wxSize( totWidth, totHeight ) );
 503     totWidth = sz.x;
 504     totHeight = sz.y;
 505
 506     // optimum size is an additional 5 pt border to all sides
 507     totWidth += 10;
 508     totHeight += 10;
 509
 510     // handle radio box title as well
 511     GetTextExtent( GetLabel(), &eachWidth, NULL );
 512     eachWidth  = (int)(eachWidth + RADIO_SIZE) +  3 * charWidth;
 513     if (totWidth < eachWidth)
 514         totWidth = eachWidth;
 515
 516     return wxSize( totWidth, totHeight );
 517 }
 518
 519 bool wxRadioBox::SetFont(const wxFont& font)
 520 {
 521     bool retval = wxWindowBase::SetFont( font );
 522
 523     // dont' update the native control, it has its own small font
 524
 525     return retval;
 526 }
 527
 528 #endif // wxUSE_RADIOBOX