src/mac/classic/choice.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/classic/choice.cpp
   3 // Purpose:     wxChoice
   4 // Author:      Stefan Csomor
   5 // Modified by:
   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_CHOICE
  15
  16 #include "wx/choice.h"
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/menu.h"
  20 #endif
  21
  22 #include "wx/mac/uma.h"
  23
  24 IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
  25
  26 extern MenuHandle NewUniqueMenu() ;
  27
  28 wxChoice::~wxChoice()
  29 {
  30     if ( HasClientObjectData() )
  31     {
  32         unsigned int i, max = GetCount();
  33
  34         for ( i = 0; i < max; ++i )
  35             delete GetClientObject(i);
  36     }
  37
  38         // DeleteMenu( m_macPopUpMenuId ) ;
  39     // DisposeMenu( m_macPopUpMenuHandle ) ;
  40 }
  41
  42 bool wxChoice::Create(wxWindow *parent, wxWindowID id,
  43            const wxPoint& pos,
  44            const wxSize& size,
  45            const wxArrayString& choices,
  46            long style,
  47            const wxValidator& validator,
  48            const wxString& name)
  49 {
  50     wxCArrayString chs(choices);
  51
  52     return Create(parent, id, pos, size, chs.GetCount(), chs.GetStrings(),
  53                   style, validator, name);
  54 }
  55
  56 bool wxChoice::Create(wxWindow *parent, wxWindowID id,
  57            const wxPoint& pos,
  58            const wxSize& size,
  59            int n, const wxString choices[],
  60            long style,
  61            const wxValidator& validator,
  62            const wxString& name)
  63 {
  64     if ( !wxChoiceBase::Create(parent, id, pos, size, style, validator, name) )
  65         return false;
  66
  67     Rect bounds ;
  68     Str255 title ;
  69
  70     MacPreControlCreate( parent , id ,  wxEmptyString , pos , size ,style, validator , name , &bounds , title ) ;
  71     m_macControl = (WXWidget) ::NewControl( MAC_WXHWND(parent->MacGetRootWindow()) , &bounds , title , false , 0 , -12345 , 0 ,
  72         kControlPopupButtonProc + kControlPopupFixedWidthVariant , (long) this ) ;
  73
  74     m_macPopUpMenuHandle =  NewUniqueMenu() ;
  75     SetControlData( (ControlHandle) m_macControl , kControlNoPart , kControlPopupButtonMenuHandleTag , sizeof( MenuHandle ) , (char*) &m_macPopUpMenuHandle) ;
  76     SetControl32BitMinimum( (ControlHandle) m_macControl , 0 ) ;
  77     SetControl32BitMaximum( (ControlHandle) m_macControl , 0) ;
  78     if ( n > 0 )
  79         SetControl32BitValue( (ControlHandle) m_macControl , 1 ) ;
  80     MacPostControlCreate() ;
  81     // TODO wxCB_SORT
  82     for ( int i = 0; i < n; i++ )
  83     {
  84         Append(choices[i]);
  85     }
  86     return true;
  87 }
  88
  89 // ----------------------------------------------------------------------------
  90 // adding/deleting items to/from the list
  91 // ----------------------------------------------------------------------------
  92 int wxChoice::DoAppend(const wxString& item)
  93 {
  94     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item, m_font.GetEncoding() );
  95     m_strings.Add( item ) ;
  96     m_datas.Add( NULL ) ;
  97     int index = m_strings.GetCount()  - 1  ;
  98     DoSetItemClientData( index , NULL ) ;
  99     SetControl32BitMaximum( (ControlHandle) m_macControl , GetCount()) ;
 100     return index ;
 101 }
 102
 103 int wxChoice::DoInsert(const wxString& item, unsigned int pos)
 104 {
 105     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
 106     wxCHECK_MSG(IsValidInsert(pos), -1, wxT("invalid index"));
 107
 108     if (pos == GetCount())
 109         return DoAppend(item);
 110
 111     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item, m_font.GetEncoding() );
 112     m_strings.Insert( item, pos ) ;
 113     m_datas.Insert( NULL, pos ) ;
 114     DoSetItemClientData( pos , NULL ) ;
 115     SetControl32BitMaximum( (ControlHandle) m_macControl , pos) ;
 116     return pos ;
 117 }
 118
 119 void wxChoice::Delete(unsigned int n)
 120 {
 121     wxCHECK_RET( IsValid(n), wxT("invalid item index in wxChoice::Delete") );
 122     if ( HasClientObjectData() )
 123     {
 124         delete GetClientObject(n);
 125     }
 126     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1) ;
 127     m_strings.RemoveAt( n ) ;
 128     m_datas.RemoveAt( n ) ;
 129     SetControl32BitMaximum( (ControlHandle) m_macControl , GetCount()) ;
 130 }
 131
 132 void wxChoice::Clear()
 133 {
 134     FreeData();
 135     for ( unsigned int i = 0 ; i < GetCount() ; i++ )
 136     {
 137         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
 138     }
 139     m_strings.Empty() ;
 140     m_datas.Empty() ;
 141     SetControl32BitMaximum( (ControlHandle) m_macControl , 0 ) ;
 142 }
 143
 144 void wxChoice::FreeData()
 145 {
 146     if ( HasClientObjectData() )
 147     {
 148         unsigned int count = GetCount();
 149         for ( unsigned int n = 0; n < count; n++ )
 150         {
 151             delete GetClientObject(n);
 152         }
 153     }
 154 }
 155
 156 // ----------------------------------------------------------------------------
 157 // selection
 158 // ----------------------------------------------------------------------------
 159 int wxChoice::GetSelection() const
 160 {
 161     return GetControl32BitValue( (ControlHandle) m_macControl ) -1 ;
 162 }
 163
 164 void wxChoice::SetSelection(int n)
 165 {
 166     SetControl32BitValue( (ControlHandle) m_macControl , n + 1 ) ;
 167 }
 168
 169 // ----------------------------------------------------------------------------
 170 // string list functions
 171 // ----------------------------------------------------------------------------
 172
 173 unsigned int wxChoice::GetCount() const
 174 {
 175     return m_strings.GetCount() ;
 176 }
 177
 178 void wxChoice::SetString(unsigned int n, const wxString& s)
 179 {
 180     wxFAIL_MSG(wxT("wxChoice::SetString() not yet implemented"));
 181 #if 0 // should do this, but no Insert() so far
 182     Delete(n);
 183     Insert(n + 1, s);
 184 #endif
 185 }
 186
 187 wxString wxChoice::GetString(unsigned int n) const
 188 {
 189     wxCHECK_MSG( IsValid(n), wxEmptyString,
 190                     _T("wxChoice::GetString(): invalid index") );
 191
 192     return m_strings[n] ;
 193 }
 194
 195 // ----------------------------------------------------------------------------
 196 // client data
 197 // ----------------------------------------------------------------------------
 198 void wxChoice::DoSetItemClientData(unsigned int n, void* clientData)
 199 {
 200     wxCHECK_RET( n >= 0 && (unsigned int)n < m_datas.GetCount(),
 201                  wxT("invalid index in wxChoice::SetClientData") );
 202
 203     m_datas[n] = (char*) clientData ;
 204 }
 205
 206 void *wxChoice::DoGetItemClientData(unsigned int n) const
 207 {
 208     wxCHECK_MSG( n >= 0 && (unsigned int)n < m_datas.GetCount(), NULL,
 209                  wxT("invalid index in wxChoice::GetClientData") );
 210     return (void *)m_datas[n];
 211 }
 212
 213 void wxChoice::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
 214 {
 215     DoSetItemClientData(n, clientData);
 216 }
 217
 218 wxClientData* wxChoice::DoGetItemClientObject(unsigned int n) const
 219 {
 220     return (wxClientData *)DoGetItemClientData(n);
 221 }
 222
 223 void wxChoice::MacHandleControlClick( WXWidget control , wxInt16 controlpart , bool WXUNUSED(mouseStillDown))
 224 {
 225     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId );
 226     int n = GetSelection();
 227     // actually n should be made sure by the os to be a valid selection, but ...
 228     if ( n > -1 )
 229     {
 230         event.SetInt( n );
 231         event.SetString(GetStringSelection());
 232         event.SetEventObject(this);
 233         if ( HasClientObjectData() )
 234             event.SetClientObject( GetClientObject(n) );
 235         else if ( HasClientUntypedData() )
 236             event.SetClientData( GetClientData(n) );
 237         ProcessCommand(event);
 238     }
 239 }
 240
 241 wxSize wxChoice::DoGetBestSize() const
 242 {
 243     int lbWidth = GetCount() > 0 ? 20 : 100;  // some defaults
 244     int lbHeight = 20;
 245     int wLine;
 246 #if TARGET_CARBON
 247     long metric ;
 248     GetThemeMetric(kThemeMetricPopupButtonHeight , &metric );
 249     lbHeight = metric ;
 250 #endif
 251     {
 252         wxMacPortStateHelper st( UMAGetWindowPort( (WindowRef) MacGetRootWindow() ) ) ;
 253         if ( m_font.Ok() )
 254         {
 255             ::TextFont( m_font.GetMacFontNum() ) ;
 256             ::TextSize( m_font.GetMacFontSize() ) ;
 257             ::TextFace( m_font.GetMacFontStyle() ) ;
 258         }
 259         else
 260         {
 261             ::TextFont( kFontIDMonaco ) ;
 262             ::TextSize( 9  );
 263             ::TextFace( 0 ) ;
 264         }
 265         // Find the widest line
 266         for(unsigned int i = 0; i < GetCount(); i++) {
 267             wxString str(GetString(i));
 268         #if wxUSE_UNICODE
 269             Point bounds={0,0} ;
 270             SInt16 baseline ;
 271             ::GetThemeTextDimensions( wxMacCFStringHolder( str , m_font.GetEncoding() ) ,
 272                 kThemeCurrentPortFont,
 273                 kThemeStateActive,
 274                 false,
 275                 &bounds,
 276                 &baseline );
 277             wLine = bounds.h ;
 278         #else
 279             wLine = ::TextWidth( str.c_str() , 0 , str.length() ) ;
 280         #endif
 281             lbWidth = wxMax(lbWidth, wLine);
 282         }
 283         // Add room for the popup arrow
 284         lbWidth += 2 * lbHeight ;
 285         // And just a bit more
 286         int cx = ::TextWidth( "X" , 0 , 1 ) ;
 287         lbWidth += cx ;
 288
 289     }
 290     return wxSize(lbWidth, lbHeight);
 291 }
 292
 293 #endif // wxUSE_CHOICE