src/mac/combobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        combobox.cpp
   3 // Purpose:     wxComboBox class
   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 "combobox.h"
  14 #endif
  15
  16 #include "wx/combobox.h"
  17 #include "wx/menu.h"
  18 #include "wx/mac/uma.h"
  19
  20 #if !USE_SHARED_LIBRARY
  21 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
  22 #endif
  23
  24 // composite combobox implementation by Dan "Bud" Keith bud@otsys.com
  25
  26
  27 static int nextPopUpMenuId = 1000 ;
  28 MenuHandle NewUniqueMenu()
  29 {
  30   MenuHandle handle = NewMenu( nextPopUpMenuId , "\pMenu" ) ;
  31   nextPopUpMenuId++ ;
  32   return handle ;
  33 }
  34
  35
  36 // ----------------------------------------------------------------------------
  37 // constants
  38 // ----------------------------------------------------------------------------
  39
  40 // the margin between the text control and the choice
  41 static const wxCoord MARGIN = 2;
  42 static const int    POPUPWIDTH = 18;
  43 static const int    POPUPHEIGHT = 23;
  44
  45
  46 // ----------------------------------------------------------------------------
  47 // wxComboBoxText: text control forwards events to combobox
  48 // ----------------------------------------------------------------------------
  49
  50 class wxComboBoxText : public wxTextCtrl
  51 {
  52 public:
  53     wxComboBoxText( wxComboBox * cb )
  54         : wxTextCtrl( cb , 1 )
  55     {
  56         m_cb = cb;
  57     }
  58
  59 protected:
  60     void OnTextChange( wxCommandEvent& event )
  61     {
  62         wxString    s = GetValue();
  63
  64         if (!s.IsEmpty())
  65             m_cb->DelegateTextChanged( s );
  66
  67         event.Skip();
  68     }
  69
  70 private:
  71     wxComboBox *m_cb;
  72
  73     DECLARE_EVENT_TABLE()
  74 };
  75
  76 BEGIN_EVENT_TABLE(wxComboBoxText, wxTextCtrl)
  77     EVT_TEXT(-1, wxComboBoxText::OnTextChange)
  78 END_EVENT_TABLE()
  79
  80 class wxComboBoxChoice : public wxChoice
  81 {
  82 public:
  83     wxComboBoxChoice(wxComboBox *cb, int style)
  84         : wxChoice( cb , 1 )
  85     {
  86         m_cb = cb;
  87     }
  88
  89 protected:
  90     void OnChoice( wxCommandEvent& e )
  91     {
  92         wxString    s = e.GetString();
  93
  94         m_cb->DelegateChoice( s );
  95     }
  96
  97 private:
  98     wxComboBox *m_cb;
  99
 100     DECLARE_EVENT_TABLE()
 101 };
 102
 103 BEGIN_EVENT_TABLE(wxComboBoxChoice, wxChoice)
 104     EVT_CHOICE(-1, wxComboBoxChoice::OnChoice)
 105 END_EVENT_TABLE()
 106
 107 wxComboBox::~wxComboBox()
 108 {
 109    // delete the controls now, don't leave them alive even though they would
 110     // still be eventually deleted by our parent - but it will be too late, the
 111     // user code expects them to be gone now
 112     if (m_text != NULL) {
 113         delete m_text;
 114         m_text = NULL;
 115     }
 116     if (m_choice != NULL) {
 117         delete m_choice;
 118         m_choice = NULL;
 119     }
 120 }
 121
 122
 123 // ----------------------------------------------------------------------------
 124 // geometry
 125 // ----------------------------------------------------------------------------
 126
 127 wxSize wxComboBox::DoGetBestSize() const
 128 {
 129     wxSize size = m_choice->GetBestSize();
 130
 131     if ( m_text != NULL )
 132     {
 133         wxSize  sizeText = m_text->GetBestSize();
 134
 135         size.x = POPUPWIDTH + sizeText.x + MARGIN;
 136     }
 137
 138     return size;
 139 }
 140
 141 void wxComboBox::DoMoveWindow(int x, int y, int width, int height) {
 142     height = POPUPHEIGHT;
 143
 144     wxControl::DoMoveWindow(x, y, width, height);
 145
 146     if ( m_text == NULL )
 147     {
 148         m_choice->SetSize(0, 0 , width, -1);
 149     }
 150     else
 151     {
 152         wxCoord wText = width - POPUPWIDTH;
 153         m_text->SetSize(0, 0, wText, height);
 154         m_choice->SetSize(0 + wText + MARGIN, 0, POPUPWIDTH, -1);
 155     }
 156 }
 157
 158
 159
 160 // ----------------------------------------------------------------------------
 161 // operations forwarded to the subcontrols
 162 // ----------------------------------------------------------------------------
 163
 164 bool wxComboBox::Enable(bool enable)
 165 {
 166     if ( !wxControl::Enable(enable) )
 167         return FALSE;
 168
 169     return TRUE;
 170 }
 171
 172 bool wxComboBox::Show(bool show)
 173 {
 174     if ( !wxControl::Show(show) )
 175         return FALSE;
 176
 177     return TRUE;
 178 }
 179
 180 void wxComboBox::SetFocus()
 181 {
 182     if ( m_text != NULL) {
 183         m_text->SetFocus();
 184     }
 185 }
 186
 187
 188 void wxComboBox::DelegateTextChanged( const wxString& value )
 189 {
 190 }
 191
 192
 193 void wxComboBox::DelegateChoice( const wxString& value )
 194 {
 195     SetStringSelection( value );
 196 }
 197
 198
 199 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
 200            const wxString& value,
 201            const wxPoint& pos,
 202            const wxSize& size,
 203            int n, const wxString choices[],
 204            long style,
 205            const wxValidator& validator,
 206            const wxString& name)
 207 {
 208
 209     Rect bounds ;
 210     Str255 title ;
 211
 212     if ( !wxControl::Create(parent, id, wxDefaultPosition, wxDefaultSize, style ,
 213                             wxDefaultValidator, name) )
 214     {
 215         return FALSE;
 216     }
 217
 218     m_choice = new wxComboBoxChoice(this, style );
 219
 220     wxSize csize = size;
 221     if ( style & wxCB_READONLY )
 222     {
 223         m_text = NULL;
 224     }
 225     else
 226     {
 227         m_text = new wxComboBoxText(this);
 228         if ( size.y == -1 ) {
 229           csize.y = m_text->GetSize().y ;
 230         }
 231     }
 232
 233     DoSetSize(pos.x, pos.y, csize.x, csize.y);
 234
 235     for ( int i = 0 ; i < n ; i++ )
 236     {
 237         m_choice->DoAppend( choices[ i ] );
 238     }
 239
 240     return TRUE;
 241 }
 242
 243 wxString wxComboBox::GetValue() const
 244 {
 245     wxString        result;
 246
 247     if ( m_text == NULL )
 248     {
 249         result = m_choice->GetString( m_choice->GetSelection() );
 250     }
 251     else
 252     {
 253         result = m_text->GetValue();
 254     }
 255
 256     return result;
 257 }
 258
 259 void wxComboBox::SetValue(const wxString& value)
 260 {
 261     SetStringSelection( value ) ;
 262 }
 263
 264 // Clipboard operations
 265 void wxComboBox::Copy()
 266 {
 267     if ( m_text != NULL )
 268     {
 269         m_text->Copy();
 270     }
 271 }
 272
 273 void wxComboBox::Cut()
 274 {
 275     if ( m_text != NULL )
 276     {
 277         m_text->Cut();
 278     }
 279 }
 280
 281 void wxComboBox::Paste()
 282 {
 283     if ( m_text != NULL )
 284     {
 285         m_text->Paste();
 286     }
 287 }
 288
 289 void wxComboBox::SetEditable(bool editable)
 290 {
 291     if ( ( m_text == NULL ) && editable )
 292     {
 293         m_text = new wxComboBoxText( this );
 294     }
 295     else if ( ( m_text != NULL ) && !editable )
 296     {
 297         delete m_text;
 298         m_text = NULL;
 299     }
 300
 301     int currentX, currentY;
 302     GetPosition( &currentX, &currentY );
 303
 304     int currentW, currentH;
 305     GetSize( &currentW, &currentH );
 306
 307     DoMoveWindow( currentX, currentY, currentW, currentH );
 308 }
 309
 310 void wxComboBox::SetInsertionPoint(long pos)
 311 {
 312     // TODO
 313 }
 314
 315 void wxComboBox::SetInsertionPointEnd()
 316 {
 317     // TODO
 318 }
 319
 320 long wxComboBox::GetInsertionPoint() const
 321 {
 322     // TODO
 323     return 0;
 324 }
 325
 326 long wxComboBox::GetLastPosition() const
 327 {
 328     // TODO
 329     return 0;
 330 }
 331
 332 void wxComboBox::Replace(long from, long to, const wxString& value)
 333 {
 334     // TODO
 335 }
 336
 337 void wxComboBox::Remove(long from, long to)
 338 {
 339     // TODO
 340 }
 341
 342 void wxComboBox::SetSelection(long from, long to)
 343 {
 344     // TODO
 345 }
 346
 347 void wxComboBox::Append(const wxString& item)
 348 {
 349     // I am not sure what other ports do,
 350     // but wxMac chokes on empty entries.
 351
 352     if (!item.IsEmpty())
 353         m_choice->DoAppend( item );
 354 }
 355
 356 void wxComboBox::Delete(int n)
 357 {
 358     m_choice->Delete( n );
 359 }
 360
 361 void wxComboBox::Clear()
 362 {
 363     m_choice->Clear();
 364 }
 365
 366 int wxComboBox::GetSelection() const
 367 {
 368     return m_choice->GetSelection();
 369 }
 370
 371 void wxComboBox::SetSelection(int n)
 372 {
 373     m_choice->SetSelection( n );
 374
 375     if ( m_text != NULL )
 376     {
 377         m_text->SetValue( GetString( n ) );
 378     }
 379 }
 380
 381 int wxComboBox::FindString(const wxString& s) const
 382 {
 383     return m_choice->FindString( s );
 384 }
 385
 386 wxString wxComboBox::GetString(int n) const
 387 {
 388     return m_choice->GetString( n );
 389 }
 390
 391 wxString wxComboBox::GetStringSelection() const
 392 {
 393     int sel = GetSelection ();
 394     if (sel > -1)
 395         return wxString(this->GetString (sel));
 396     else
 397         return wxString("");
 398 }
 399
 400 bool wxComboBox::SetStringSelection(const wxString& sel)
 401 {
 402     int s = FindString (sel);
 403     if (s > -1)
 404         {
 405             SetSelection (s);
 406             return TRUE;
 407         }
 408     else
 409         return FALSE;
 410 }
 411
 412 void wxComboBox::MacHandleControlClick( WXWidget control , wxInt16 controlpart )
 413 {
 414     wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, m_windowId );
 415     event.SetInt(GetSelection());
 416     event.SetEventObject(this);
 417     event.SetString(GetStringSelection());
 418     ProcessCommand(event);
 419 }
 420