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 // regarding layout: note that there are differences in inter-control
  26 // spacing between InterfaceBuild and the Human Interface Guidelines, we stick
  27 // to the latter, as those are also used eg in the System Preferences Dialogs
  28
  29 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
  30
  31
  32 BEGIN_EVENT_TABLE(wxRadioBox, wxControl)
  33     EVT_RADIOBUTTON( wxID_ANY , wxRadioBox::OnRadioButton )
  34 END_EVENT_TABLE()
  35
  36
  37 void wxRadioBox::OnRadioButton( wxCommandEvent &outer )
  38 {
  39     if ( outer.IsChecked() )
  40     {
  41         wxCommandEvent event( wxEVT_COMMAND_RADIOBOX_SELECTED, m_windowId );
  42         int i = GetSelection() ;
  43         event.SetInt(i);
  44         event.SetString(GetString(i));
  45         event.SetEventObject( this );
  46         ProcessCommand(event);
  47     }
  48 }
  49
  50 wxRadioBox::wxRadioBox()
  51 {
  52     m_noItems = 0;
  53     m_noRowsOrCols = 0;
  54     m_radioButtonCycle = NULL;
  55 }
  56
  57 wxRadioBox::~wxRadioBox()
  58 {
  59     SendDestroyEvent();
  60
  61     wxRadioButton *next, *current;
  62
  63     current = m_radioButtonCycle->NextInCycle();
  64     if (current != NULL)
  65     {
  66         while (current != m_radioButtonCycle)
  67         {
  68             next = current->NextInCycle();
  69             delete current;
  70
  71             current = next;
  72         }
  73
  74         delete current;
  75     }
  76 }
  77
  78 // Create the radiobox for two-step construction
  79
  80 bool wxRadioBox::Create( wxWindow *parent,
  81     wxWindowID id, const wxString& label,
  82     const wxPoint& pos, const wxSize& size,
  83     const wxArrayString& choices,
  84     int majorDim, long style,
  85     const wxValidator& val, const wxString& name )
  86 {
  87     wxCArrayString chs(choices);
  88
  89     return Create(
  90         parent, id, label, pos, size, chs.GetCount(),
  91         chs.GetStrings(), majorDim, style, val, name);
  92 }
  93
  94 bool wxRadioBox::Create( wxWindow *parent,
  95     wxWindowID id, const wxString& label,
  96     const wxPoint& pos, const wxSize& size,
  97     int n, const wxString choices[],
  98     int majorDim, long style,
  99     const wxValidator& val, const wxString& name )
 100 {
 101     m_macIsUserPane = false ;
 102
 103     if ( !wxControl::Create( parent, id, pos, size, style, val, name ) )
 104         return false;
 105
 106     int i;
 107
 108     m_noItems = (unsigned int)n;
 109     m_noRowsOrCols = majorDim;
 110     m_radioButtonCycle = NULL;
 111
 112     SetMajorDim( majorDim == 0 ? n : majorDim, style );
 113
 114     m_labelOrig = m_label = label;
 115
 116     SetPeer(wxWidgetImpl::CreateGroupBox( this, parent, id, label, pos, size, style, GetExtraStyle() ));
 117
 118     for (i = 0; i < n; i++)
 119     {
 120         wxRadioButton *radBtn = new wxRadioButton(
 121             this,
 122             wxID_ANY,
 123             GetLabelText(choices[i]),
 124             wxPoint( 5, 20 * i + 10 ),
 125             wxDefaultSize,
 126             i == 0 ? wxRB_GROUP : 0 );
 127
 128         if ( i == 0 )
 129             m_radioButtonCycle = radBtn;
 130 //        m_radioButtonCycle = radBtn->AddInCycle( m_radioButtonCycle );
 131     }
 132
 133     SetSelection( 0 );
 134     MacPostControlCreate( pos, size );
 135
 136     return true;
 137 }
 138
 139 // Enables or disables the entire radiobox
 140 //
 141 bool wxRadioBox::Enable(bool enable)
 142 {
 143     wxRadioButton *current;
 144
 145     if (!wxControl::Enable( enable ))
 146         return false;
 147
 148     current = m_radioButtonCycle;
 149     for (unsigned int i = 0; i < m_noItems; i++)
 150     {
 151         current->Enable( enable );
 152         current = current->NextInCycle();
 153     }
 154
 155     return true;
 156 }
 157
 158 // Enables or disables an given button
 159 //
 160 bool wxRadioBox::Enable(unsigned int item, bool enable)
 161 {
 162     if (!IsValid( item ))
 163         return false;
 164
 165     unsigned int i = 0;
 166     wxRadioButton *current = m_radioButtonCycle;
 167     while (i != item)
 168     {
 169         i++;
 170         current = current->NextInCycle();
 171     }
 172
 173     return current->Enable( enable );
 174 }
 175
 176 bool wxRadioBox::IsItemEnabled(unsigned int item) const
 177 {
 178     if (!IsValid( item ))
 179         return false;
 180
 181     unsigned int i = 0;
 182     wxRadioButton *current = m_radioButtonCycle;
 183     while (i != item)
 184     {
 185         i++;
 186         current = current->NextInCycle();
 187     }
 188
 189     return current->IsEnabled();
 190 }
 191
 192 // Returns the radiobox label
 193 //
 194 wxString wxRadioBox::GetLabel() const
 195 {
 196     return wxControl::GetLabel();
 197 }
 198
 199 // Returns the label for the given button
 200 //
 201 wxString wxRadioBox::GetString(unsigned int item) const
 202 {
 203     wxRadioButton *current;
 204
 205     if (!IsValid( item ))
 206         return wxEmptyString;
 207
 208     unsigned int i = 0;
 209     current = m_radioButtonCycle;
 210     while (i != item)
 211     {
 212         i++;
 213         current = current->NextInCycle();
 214     }
 215
 216     return current->GetLabel();
 217 }
 218
 219 // Returns the zero-based position of the selected button
 220 //
 221 int wxRadioBox::GetSelection() const
 222 {
 223     int i;
 224     wxRadioButton *current;
 225
 226     i = 0;
 227     current = m_radioButtonCycle;
 228     while (!current->GetValue())
 229     {
 230         i++;
 231         current = current->NextInCycle();
 232     }
 233
 234     return i;
 235 }
 236
 237 // Sets the radiobox label
 238 //
 239 void wxRadioBox::SetLabel(const wxString& label)
 240 {
 241     return wxControl::SetLabel( label );
 242 }
 243
 244 // Sets the label of a given button
 245 //
 246 void wxRadioBox::SetString(unsigned int item,const wxString& label)
 247 {
 248     if (!IsValid( item ))
 249         return;
 250
 251     unsigned int i = 0;
 252     wxRadioButton *current = m_radioButtonCycle;
 253     while (i != item)
 254     {
 255         i++;
 256         current = current->NextInCycle();
 257     }
 258
 259     return current->SetLabel( label );
 260 }
 261
 262 // Sets a button by passing the desired position. This does not cause
 263 // wxEVT_COMMAND_RADIOBOX_SELECTED event to get emitted
 264 //
 265 void wxRadioBox::SetSelection(int item)
 266 {
 267     int i;
 268     wxRadioButton *current;
 269
 270     if (!IsValid( item ))
 271         return;
 272
 273     i = 0;
 274     current = m_radioButtonCycle;
 275     while (i != item)
 276     {
 277         i++;
 278         current = current->NextInCycle();
 279     }
 280
 281     current->SetValue( true );
 282 }
 283
 284 // Shows or hides the entire radiobox
 285 //
 286 bool wxRadioBox::Show(bool show)
 287 {
 288     wxRadioButton *current;
 289
 290     current = m_radioButtonCycle;
 291     for (unsigned int i=0; i<m_noItems; i++)
 292     {
 293         current->Show( show );
 294         current = current->NextInCycle();
 295     }
 296
 297     wxControl::Show( show );
 298
 299     return true;
 300 }
 301
 302 // Shows or hides the given button
 303 //
 304 bool wxRadioBox::Show(unsigned int item, bool show)
 305 {
 306     if (!IsValid( item ))
 307         return false;
 308
 309     unsigned int i = 0;
 310     wxRadioButton *current = m_radioButtonCycle;
 311     while (i != item)
 312     {
 313         i++;
 314         current = current->NextInCycle();
 315     }
 316
 317     return current->Show( show );
 318 }
 319
 320 bool wxRadioBox::IsItemShown(unsigned int item) const
 321 {
 322     if (!IsValid( item ))
 323         return false;
 324
 325     unsigned int i = 0;
 326     wxRadioButton *current = m_radioButtonCycle;
 327     while (i != item)
 328     {
 329         i++;
 330         current = current->NextInCycle();
 331     }
 332
 333     return current->IsShown();
 334 }
 335
 336
 337 // Simulates the effect of the user issuing a command to the item
 338 //
 339 void wxRadioBox::Command( wxCommandEvent& event )
 340 {
 341     SetSelection( event.GetInt() );
 342     ProcessCommand( event );
 343 }
 344
 345 // Sets the selected button to receive keyboard input
 346 //
 347 void wxRadioBox::SetFocus()
 348 {
 349     wxRadioButton *current;
 350
 351     current = m_radioButtonCycle;
 352     while (!current->GetValue())
 353     {
 354         current = current->NextInCycle();
 355     }
 356
 357     current->SetFocus();
 358 }
 359
 360 // Simulates the effect of the user issuing a command to the item
 361 //
 362 #if wxOSX_USE_CARBON
 363     #define RADIO_SIZE 20
 364 #else
 365     // Cocoa has an additional border are of about 3 pixels
 366     #define RADIO_SIZE 23
 367 #endif
 368
 369 void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 370 {
 371     int i;
 372     wxRadioButton *current;
 373
 374     // define the position
 375
 376     int x_current, y_current;
 377     int x_offset, y_offset;
 378     int widthOld, heightOld;
 379
 380     GetSize( &widthOld, &heightOld );
 381     GetPosition( &x_current, &y_current );
 382
 383     x_offset = x;
 384     y_offset = y;
 385     if (!(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 386     {
 387         if (x == wxDefaultCoord)
 388             x_offset = x_current;
 389         if (y == wxDefaultCoord)
 390             y_offset = y_current;
 391     }
 392
 393     // define size
 394     int charWidth, charHeight;
 395     int maxWidth, maxHeight;
 396     int eachWidth[128], eachHeight[128];
 397     int totWidth, totHeight;
 398
 399     GetTextExtent(
 400         wxT("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"),
 401         &charWidth, &charHeight );
 402
 403     charWidth /= 52;
 404
 405     maxWidth = -1;
 406     maxHeight = -1;
 407     wxSize bestSizeRadio ;
 408     if ( m_radioButtonCycle )
 409         bestSizeRadio = m_radioButtonCycle->GetBestSize();
 410
 411     for (unsigned int i = 0 ; i < m_noItems; i++)
 412     {
 413         GetTextExtent(GetString(i), &eachWidth[i], &eachHeight[i] );
 414         eachWidth[i] = eachWidth[i] + RADIO_SIZE;
 415         eachHeight[i] = wxMax( eachHeight[i], bestSizeRadio.y );
 416
 417         if (maxWidth < eachWidth[i])
 418             maxWidth = eachWidth[i];
 419         if (maxHeight < eachHeight[i])
 420             maxHeight = eachHeight[i];
 421     }
 422
 423     // according to HIG (official space - 3 Pixels Diff between Frame and Layout size)
 424     int space = 3;
 425     if ( GetWindowVariant() == wxWINDOW_VARIANT_MINI )
 426         space = 2;
 427
 428     totHeight = GetRowCount() * maxHeight + (GetRowCount() - 1) * space;
 429     totWidth  = GetColumnCount() * (maxWidth + charWidth);
 430
 431     wxSize sz = DoGetSizeFromClientSize( wxSize( totWidth, totHeight ) ) ;
 432
 433     // change the width / height only when specified
 434     if ( width == wxDefaultCoord )
 435     {
 436         if ( sizeFlags & wxSIZE_AUTO_WIDTH )
 437             width = sz.x;
 438         else
 439             width = widthOld;
 440     }
 441
 442     if ( height == wxDefaultCoord )
 443     {
 444         if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
 445             height = sz.y;
 446         else
 447             height = heightOld;
 448     }
 449
 450     wxControl::DoSetSize( x_offset, y_offset, width, height, wxSIZE_AUTO );
 451
 452     // arrange radio buttons
 453     int x_start, y_start;
 454
 455     x_start = ( width - sz.x ) / 2;
 456     y_start = ( height - sz.y ) / 2;
 457
 458     x_offset = x_start;
 459     y_offset = y_start;
 460
 461     current = m_radioButtonCycle;
 462     for (i = 0 ; i < (int)m_noItems; i++)
 463     {
 464         // not to do for the zero button!
 465         if ((i > 0) && ((i % GetMajorDim()) == 0))
 466         {
 467             if (m_windowStyle & wxRA_SPECIFY_ROWS)
 468             {
 469                 x_offset += maxWidth + charWidth;
 470                 y_offset = y_start;
 471             }
 472             else
 473             {
 474                 x_offset = x_start;
 475                 y_offset += maxHeight + space;
 476             }
 477         }
 478
 479         current->SetSize( x_offset, y_offset, eachWidth[i], eachHeight[i] );
 480         current = current->NextInCycle();
 481
 482         if (m_windowStyle & wxRA_SPECIFY_ROWS)
 483             y_offset += maxHeight + space;
 484         else
 485             x_offset += maxWidth + charWidth;
 486     }
 487 }
 488
 489 wxSize wxRadioBox::DoGetBestSize() const
 490 {
 491     int charWidth, charHeight;
 492     int maxWidth, maxHeight;
 493     int eachWidth, eachHeight;
 494     int totWidth, totHeight;
 495
 496     wxFont font = GetFont(); // GetParent()->GetFont()
 497     GetTextExtent(
 498         wxT("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"),
 499         &charWidth, &charHeight, NULL, NULL, &font );
 500
 501     charWidth /= 52;
 502
 503     maxWidth = -1;
 504     maxHeight = -1;
 505
 506     wxSize bestSizeRadio ;
 507     if ( m_radioButtonCycle )
 508         bestSizeRadio = m_radioButtonCycle->GetBestSize();
 509
 510     for (unsigned int i = 0 ; i < m_noItems; i++)
 511     {
 512         GetTextExtent(GetString(i), &eachWidth, &eachHeight, NULL, NULL, &font );
 513         eachWidth  = (eachWidth + RADIO_SIZE);
 514         eachHeight = wxMax(eachHeight, bestSizeRadio.y );
 515         if (maxWidth < eachWidth)
 516             maxWidth = eachWidth;
 517         if (maxHeight < eachHeight)
 518             maxHeight = eachHeight;
 519     }
 520
 521     // according to HIG (official space - 3 Pixels Diff between Frame and Layout size)
 522     int space = 3;
 523     if ( GetWindowVariant() == wxWINDOW_VARIANT_MINI )
 524         space = 2;
 525
 526     totHeight = GetRowCount() * maxHeight + (GetRowCount() - 1) * space;
 527     totWidth  = GetColumnCount() * (maxWidth + charWidth);
 528
 529     wxSize sz = DoGetSizeFromClientSize( wxSize( totWidth, totHeight ) );
 530     totWidth = sz.x;
 531     totHeight = sz.y;
 532
 533     // optimum size is an additional 5 pt border to all sides
 534     totWidth += 10;
 535     totHeight += 10;
 536
 537     // handle radio box title as well
 538     GetTextExtent( GetLabel(), &eachWidth, NULL );
 539     eachWidth  = (int)(eachWidth + RADIO_SIZE) +  3 * charWidth;
 540     if (totWidth < eachWidth)
 541         totWidth = eachWidth;
 542
 543     return wxSize( totWidth, totHeight );
 544 }
 545
 546 bool wxRadioBox::SetFont(const wxFont& font)
 547 {
 548     bool retval = wxWindowBase::SetFont( font );
 549
 550     // dont' update the native control, it has its own small font
 551
 552     // should we iterate over the children ?
 553
 554     return retval;
 555 }
 556
 557 #endif // wxUSE_RADIOBOX