src/mac/checklst.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        checklst.cpp
   3 // Purpose:     implementation of wxCheckListBox 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 // ============================================================================
  13 // headers & declarations
  14 // ============================================================================
  15
  16 #ifdef __GNUG__
  17 #pragma implementation "checklst.h"
  18 #endif
  19
  20 #include "wx/defs.h"
  21
  22 #if wxUSE_CHECKLISTBOX
  23
  24 #include "wx/checklst.h"
  25
  26 #include "wx/mac/uma.h"
  27 #include "Appearance.h"
  28
  29 // ============================================================================
  30 // implementation of wxCheckListBox
  31 // ============================================================================
  32
  33 IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxListBox)
  34
  35 const short kwxMacListWithVerticalScrollbar = 128 ;
  36 const short kwxMacListItemHeight = 14 ;
  37 const short kwxMacListCheckboxWidth = 14 ;
  38
  39 #if PRAGMA_STRUCT_ALIGN
  40     #pragma options align=mac68k
  41 #elif PRAGMA_STRUCT_PACKPUSH
  42     #pragma pack(push, 2)
  43 #elif PRAGMA_STRUCT_PACK
  44     #pragma pack(2)
  45 #endif
  46
  47 typedef struct {
  48  unsigned short instruction;
  49  void (*function)();
  50 } ldefRec, *ldefPtr, **ldefHandle;
  51
  52 #if PRAGMA_STRUCT_ALIGN
  53     #pragma options align=reset
  54 #elif PRAGMA_STRUCT_PACKPUSH
  55     #pragma pack(pop)
  56 #elif PRAGMA_STRUCT_PACK
  57     #pragma pack()
  58 #endif
  59
  60 extern "C"
  61 {
  62 static pascal void wxMacCheckListDefinition( short message, Boolean isSelected, Rect *drawRect,
  63                                      Cell cell, short dataOffset, short dataLength,
  64                                      ListHandle listHandle ) ;
  65 }
  66
  67 static pascal void wxMacCheckListDefinition( short message, Boolean isSelected, Rect *drawRect,
  68                                      Cell cell, short dataOffset, short dataLength,
  69                                      ListHandle listHandle )
  70 {
  71     GrafPtr savePort;
  72     GrafPtr grafPtr;
  73     RgnHandle savedClipRegion;
  74     SInt32 savedPenMode;
  75     wxCheckListBox*          list;
  76   GetPort(&savePort);
  77   SetPort((**listHandle).port);
  78   grafPtr = (**listHandle).port ;
  79     // typecast our refCon
  80     list = (wxCheckListBox*) GetControlReference( (ControlHandle) GetListRefCon(listHandle) );
  81
  82     //  Calculate the cell rect.
  83
  84     switch( message ) {
  85         case lInitMsg:
  86             break;
  87
  88         case lCloseMsg:
  89             break;
  90
  91         case lDrawMsg:
  92         {
  93             const wxString text = list->m_stringArray[cell.v] ;
  94             int checked = list->m_checks[cell.v] ;
  95
  96             //  Save the current clip region, and set the clip region to the area we are about
  97             //  to draw.
  98
  99             savedClipRegion = NewRgn();
 100             GetClip( savedClipRegion );
 101
 102             ClipRect( drawRect );
 103             EraseRect( drawRect );
 104
 105             ::TextFont( kFontIDMonaco ) ;
 106             ::TextSize( 9  );
 107             ::TextFace( 0 ) ;
 108             ThemeButtonDrawInfo info ;
 109             info.state = kThemeStateActive ;
 110             info.value = checked ? kThemeButtonOn : kThemeButtonOff ;
 111             info.adornment = kThemeAdornmentNone ;
 112             Rect checkRect = *drawRect ;
 113             checkRect.left +=0 ;
 114             checkRect.top +=2 ;
 115             checkRect.right = checkRect.left + 12 ;
 116             checkRect.bottom = checkRect.top + 10 ;
 117             DrawThemeButton(&checkRect,kThemeCheckBox,
 118               &info,NULL,NULL, NULL,0);
 119
 120         MoveTo(drawRect->left + 4 + kwxMacListCheckboxWidth, drawRect->top + 10 );
 121
 122         DrawText(text, 0 , text.Length());
 123             //  If the cell is hilited, do the hilite now. Paint the cell contents with the
 124             //  appropriate QuickDraw transform mode.
 125
 126             if( isSelected ) {
 127                 savedPenMode = GetPortPenMode( (CGrafPtr) grafPtr );
 128                 SetPortPenMode( (CGrafPtr) grafPtr, hilitetransfermode );
 129                 PaintRect( drawRect );
 130                 SetPortPenMode( (CGrafPtr) grafPtr, savedPenMode );
 131             }
 132
 133             //  Restore the saved clip region.
 134
 135             SetClip( savedClipRegion );
 136             DisposeRgn( savedClipRegion );
 137             }
 138             break;
 139         case lHiliteMsg:
 140
 141             //  Hilite or unhilite the cell. Paint the cell contents with the
 142             //  appropriate QuickDraw transform mode.
 143
 144             GetPort( &grafPtr );
 145             savedPenMode = GetPortPenMode( (CGrafPtr) grafPtr );
 146             SetPortPenMode( (CGrafPtr) grafPtr, hilitetransfermode );
 147             PaintRect( drawRect );
 148             SetPortPenMode( (CGrafPtr) grafPtr, savedPenMode );
 149             break;
 150         default :
 151           break ;
 152     }
 153     SetPort(savePort);
 154 }
 155
 156 extern "C" void MacDrawStringCell(Rect *cellRect, Cell lCell, ListHandle theList, long refCon) ;
 157
 158 static ListDefUPP macCheckListDefUPP = NULL ;
 159
 160 // ----------------------------------------------------------------------------
 161 // creation
 162 // ----------------------------------------------------------------------------
 163
 164 void wxCheckListBox::Init()
 165 {
 166 }
 167
 168 bool wxCheckListBox::Create(wxWindow *parent,
 169                             wxWindowID id,
 170                             const wxPoint &pos,
 171                             const wxSize &size,
 172                             int n,
 173                             const wxString choices[],
 174                             long style,
 175                             const wxValidator& validator,
 176                             const wxString &name)
 177 {
 178     m_noItems = 0 ; // this will be increased by our append command
 179     m_selected = 0;
 180
 181     Rect bounds ;
 182     Str255 title ;
 183
 184     MacPreControlCreate( parent , id ,  "" , pos , size ,style, validator , name , &bounds , title ) ;
 185
 186     ListDefSpec listDef;
 187     listDef.defType = kListDefUserProcType;
 188     if ( macCheckListDefUPP == NULL )
 189     {
 190       macCheckListDefUPP = NewListDefUPP( wxMacCheckListDefinition );
 191     }
 192         listDef.u.userProc = macCheckListDefUPP ;
 193
 194 #if TARGET_CARBON
 195     Size asize;
 196
 197
 198     CreateListBoxControl( MAC_WXHWND(parent->MacGetRootWindow()), &bounds, false, 0, 1, false, true,
 199                           14, 14, false, &listDef, (ControlRef *)&m_macControl );
 200
 201     GetControlData( (ControlHandle) m_macControl, kControlNoPart, kControlListBoxListHandleTag,
 202                    sizeof(ListHandle), (Ptr) &m_macList, &asize);
 203
 204     SetControlReference( (ControlHandle) m_macControl, (long) this);
 205     SetControlVisibility( (ControlHandle) m_macControl, false, false);
 206
 207 #else
 208
 209     long    result ;
 210
 211     m_macControl = ::NewControl( MAC_WXHWND(parent->MacGetRootWindow()) , &bounds , title , false ,
 212                   kwxMacListWithVerticalScrollbar , 0 , 0,
 213                   kControlListBoxProc , (long) this ) ;
 214     ::GetControlData( (ControlHandle) m_macControl , kControlNoPart , kControlListBoxListHandleTag ,
 215                sizeof( ListHandle ) , (char*) &m_macList  , &result ) ;
 216
 217     HLock( (Handle) m_macList ) ;
 218     ldefHandle ldef ;
 219     ldef = (ldefHandle) NewHandle( sizeof(ldefRec) ) ;
 220     if (  (**(ListHandle)m_macList).listDefProc != NULL )
 221     {
 222       (**ldef).instruction = 0x4EF9;  /* JMP instruction */
 223       (**ldef).function = (void(*)()) listDef.u.userProc;
 224       (**(ListHandle)m_macList).listDefProc = (Handle) ldef ;
 225     }
 226
 227     Point pt = (**(ListHandle)m_macList).cellSize ;
 228     pt.v = 14 ;
 229     LCellSize( pt , (ListHandle)m_macList ) ;
 230     LAddColumn( 1 , 0 , (ListHandle)m_macList ) ;
 231 #endif
 232     OptionBits  options = 0;
 233     if ( style & wxLB_MULTIPLE )
 234     {
 235         options += lNoExtend ;
 236     }
 237     else if ( style & wxLB_EXTENDED )
 238     {
 239         options += lExtendDrag ;
 240     }
 241     else
 242     {
 243         options = lOnlyOne ;
 244     }
 245     SetListSelectionFlags((ListHandle)m_macList, options);
 246
 247     MacPostControlCreate() ;
 248
 249     for ( int i = 0 ; i < n ; i++ )
 250     {
 251         Append( choices[i] ) ;
 252     }
 253
 254     LSetDrawingMode( true , (ListHandle) m_macList ) ;
 255
 256     return TRUE;
 257 }
 258
 259 // ----------------------------------------------------------------------------
 260 // wxCheckListBox functions
 261 // ----------------------------------------------------------------------------
 262
 263 bool wxCheckListBox::IsChecked(size_t item) const
 264 {
 265     wxCHECK_MSG( item < m_checks.GetCount(), FALSE,
 266                  _T("invalid index in wxCheckListBox::IsChecked") );
 267
 268     return m_checks[item] != 0;
 269 }
 270
 271 void wxCheckListBox::Check(size_t item, bool check)
 272 {
 273     wxCHECK_RET( item < m_checks.GetCount(),
 274                  _T("invalid index in wxCheckListBox::Check") );
 275
 276     // intermediate var is needed to avoid compiler warning with VC++
 277     bool isChecked = m_checks[item] != 0;
 278     if ( check != isChecked )
 279     {
 280         m_checks[item] = check;
 281
 282         MacRedrawControl() ;
 283     }
 284 }
 285
 286 // ----------------------------------------------------------------------------
 287 // methods forwarded to wxListBox
 288 // ----------------------------------------------------------------------------
 289
 290 void wxCheckListBox::Delete(int n)
 291 {
 292     wxCHECK_RET( n < GetCount(), _T("invalid index in wxListBox::Delete") );
 293
 294     wxListBox::Delete(n);
 295
 296     m_checks.RemoveAt(n);
 297 }
 298
 299 int wxCheckListBox::DoAppend(const wxString& item)
 300 {
 301     int pos = wxListBox::DoAppend(item);
 302
 303     // the item is initially unchecked
 304     m_checks.Insert(FALSE, pos);
 305
 306     return pos;
 307 }
 308
 309 void wxCheckListBox::DoInsertItems(const wxArrayString& items, int pos)
 310 {
 311     wxListBox::DoInsertItems(items, pos);
 312
 313     size_t count = items.GetCount();
 314     for ( size_t n = 0; n < count; n++ )
 315     {
 316         m_checks.Insert(FALSE, pos + n);
 317     }
 318 }
 319
 320 void wxCheckListBox::DoSetItems(const wxArrayString& items, void **clientData)
 321 {
 322     // call it first as it does DoClear()
 323     wxListBox::DoSetItems(items, clientData);
 324
 325     size_t count = items.GetCount();
 326     for ( size_t n = 0; n < count; n++ )
 327     {
 328         m_checks.Add(FALSE);
 329     }
 330 }
 331
 332 void wxCheckListBox::DoClear()
 333 {
 334     m_checks.Empty();
 335 }
 336
 337 BEGIN_EVENT_TABLE(wxCheckListBox, wxListBox)
 338   EVT_CHAR(wxCheckListBox::OnChar)
 339   EVT_LEFT_DOWN(wxCheckListBox::OnLeftClick)
 340 END_EVENT_TABLE()
 341
 342 // this will only work as soon as
 343
 344 void wxCheckListBox::OnChar(wxKeyEvent& event)
 345 {
 346   if ( event.KeyCode() == WXK_SPACE )
 347   {
 348     int index = GetSelection() ;
 349     if ( index >= 0 )
 350     {
 351       Check(index, !IsChecked(index) ) ;
 352       wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, GetId());
 353       event.SetInt(index);
 354       event.SetEventObject(this);
 355       GetEventHandler()->ProcessEvent(event);
 356     }
 357   }
 358   else
 359     event.Skip();
 360 }
 361
 362 void wxCheckListBox::OnLeftClick(wxMouseEvent& event)
 363 {
 364   // clicking on the item selects it, clicking on the checkmark toggles
 365   if ( event.GetX() <= 20 /*check width*/ ) {
 366     int lineheight ;
 367     int topcell ;
 368 #if TARGET_CARBON
 369     Point pt ;
 370     GetListCellSize( (ListHandle)m_macList , &pt ) ;
 371     lineheight = pt.v ;
 372     ListBounds visible ;
 373     GetListVisibleCells( (ListHandle)m_macList , &visible ) ;
 374     topcell = visible.top ;
 375 #else
 376     lineheight =  (**(ListHandle)m_macList).cellSize.v ;
 377     topcell = (**(ListHandle)m_macList).visible.top ;
 378 #endif
 379     size_t nItem = ((size_t)event.GetY()) / lineheight + topcell ;
 380
 381     if ( nItem < (size_t)m_noItems )
 382     {
 383       Check(nItem, !IsChecked(nItem) ) ;
 384       wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, GetId());
 385       event.SetInt(nItem);
 386       event.SetEventObject(this);
 387       GetEventHandler()->ProcessEvent(event);
 388     }
 389     //else: it's not an error, just click outside of client zone
 390   }
 391   else {
 392     // implement default behaviour: clicking on the item selects it
 393     event.Skip();
 394   }
 395 }
 396
 397 #endif // wxUSE_CHECKLISTBOX