src/motif/combobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/motif/combobox.cpp
   3 // Purpose:     wxComboBox class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // Copyright:   (c) Julian Smart
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #if wxUSE_COMBOBOX
  15
  16 #include "wx/combobox.h"
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/arrstr.h"
  20 #endif
  21
  22 #ifdef __VMS__
  23 #pragma message disable nosimpint
  24 #endif
  25 #include <Xm/Xm.h>
  26 #ifdef __VMS__
  27 #pragma message enable nosimpint
  28 #endif
  29
  30 // use the old, GPL'd combobox
  31 #if (XmVersion < 2000)
  32
  33 #include "xmcombo/xmcombo.h"
  34
  35 #include "wx/motif/private.h"
  36
  37 void  wxComboBoxCallback (Widget w, XtPointer clientData,
  38                           XmComboBoxSelectionCallbackStruct * cbs);
  39
  40 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
  41                         const wxString& value,
  42                         const wxPoint& pos,
  43                         const wxSize& size,
  44                         int n, const wxString choices[],
  45                         long style,
  46                         const wxValidator& validator,
  47                         const wxString& name)
  48 {
  49     if( !CreateControl( parent, id, pos, size, style, validator, name ) )
  50         return false;
  51     PreCreation();
  52
  53     Widget parentWidget = (Widget) parent->GetClientWidget();
  54
  55     Widget buttonWidget = XtVaCreateManagedWidget(name.c_str(),
  56         xmComboBoxWidgetClass, parentWidget,
  57         XmNmarginHeight, 0,
  58         XmNmarginWidth, 0,
  59         XmNshowLabel, False,
  60         XmNeditable, ((style & wxCB_READONLY) != wxCB_READONLY),
  61         XmNsorted, ((style & wxCB_SORT) == wxCB_SORT),
  62         XmNstaticList, ((style & wxCB_SIMPLE) == wxCB_SIMPLE),
  63         NULL);
  64
  65     int i;
  66     for (i = 0; i < n; i++)
  67     {
  68         wxXmString str( choices[i] );
  69         XmComboBoxAddItem(buttonWidget, str(), 0);
  70         m_stringArray.Add(choices[i]);
  71     }
  72
  73     m_mainWidget = (Widget) buttonWidget;
  74
  75     XtManageChild (buttonWidget);
  76
  77     SetValue(value);
  78
  79     XtAddCallback (buttonWidget, XmNselectionCallback, (XtCallbackProc) wxComboBoxCallback,
  80         (XtPointer) this);
  81     XtAddCallback (buttonWidget, XmNvalueChangedCallback, (XtCallbackProc) wxComboBoxCallback,
  82         (XtPointer) this);
  83
  84     PostCreation();
  85     AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, size.x, size.y);
  86
  87     return true;
  88 }
  89
  90 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
  91                         const wxString& value,
  92                         const wxPoint& pos,
  93                         const wxSize& size,
  94                         const wxArrayString& choices,
  95                         long style,
  96                         const wxValidator& validator,
  97                         const wxString& name)
  98 {
  99     wxCArrayString chs(choices);
 100     return Create(parent, id, value, pos, size, chs.GetCount(),
 101                   chs.GetStrings(), style, validator, name);
 102 }
 103
 104 wxComboBox::~wxComboBox()
 105 {
 106     DetachWidget((Widget) m_mainWidget); // Removes event handlers
 107     XtDestroyWidget((Widget) m_mainWidget);
 108     m_mainWidget = (WXWidget) 0;
 109 }
 110
 111 void wxComboBox::DoSetSize(int x, int y,
 112                            int width, int WXUNUSED(height),
 113                            int sizeFlags)
 114 {
 115     // Necessary so it doesn't call wxChoice::SetSize
 116     wxWindow::DoSetSize(x, y, width, DoGetBestSize().y, sizeFlags);
 117 }
 118
 119 #if 0
 120 // Already defined in include/motif/combobox.h
 121 wxString wxComboBox::GetValue() const
 122 {
 123     char *s = XmComboBoxGetString ((Widget) m_mainWidget);
 124     if (s)
 125     {
 126         wxString str(s);
 127         XtFree (s);
 128         return str;
 129     }
 130     else
 131         return wxEmptyString;
 132 }
 133 #endif
 134
 135 void wxComboBox::SetValue(const wxString& value)
 136 {
 137     if( !value.empty() )
 138     {
 139         m_inSetValue = true;
 140         XmComboBoxSetString((Widget)m_mainWidget, value.char_str());
 141         m_inSetValue = false;
 142     }
 143 }
 144
 145 void wxComboBox::SetString(unsigned int WXUNUSED(n), const wxString& WXUNUSED(s))
 146 {
 147     wxFAIL_MSG( wxT("wxComboBox::SetString only implemented for Motif 2.0") );
 148 }
 149
 150 // TODO auto-sorting is not supported by the code
 151 int wxComboBox::DoInsertItems(const wxArrayStringsAdapter& items,
 152                               unsigned int pos,
 153                               void **clientData,
 154                               wxClientDataType type)
 155 {
 156     const unsigned int numItems = items.GetCount();
 157
 158     AllocClientData(numItems);
 159     for( unsigned int i = 0; i < numItems; ++i, ++pos )
 160     {
 161         wxXmString str( items[i].c_str() );
 162         XmComboBoxAddItem((Widget) m_mainWidget, str(), GetMotifPosition(pos));
 163         m_stringArray.Insert(items[i], pos);
 164         InsertNewItemClientData(pos, clientData, i, type);
 165     }
 166
 167     return pos - 1;
 168 }
 169
 170 void wxComboBox::DoDeleteOneItem(unsigned int n)
 171 {
 172     XmComboBoxDeletePos((Widget) m_mainWidget, n+1);
 173     m_stringArray.RemoveAt(n);
 174     wxControlWithItems::DoDeleteOneItem(n);
 175 }
 176
 177 void wxComboBox::Clear()
 178 {
 179     XmComboBoxDeleteAllItems((Widget) m_mainWidget);
 180     m_stringArray.Clear();
 181
 182     wxControlWithItems::DoClear();
 183 }
 184
 185 void wxComboBox::SetSelection (int n)
 186 {
 187     XmComboBoxSelectPos((Widget) m_mainWidget, n+1, False);
 188 }
 189
 190 int wxComboBox::GetSelection (void) const
 191 {
 192     int sel = XmComboBoxGetSelectedPos((Widget) m_mainWidget);
 193     if (sel == 0)
 194         return -1;
 195     else
 196         return sel - 1;
 197 }
 198
 199 wxString wxComboBox::GetString(unsigned int n) const
 200 {
 201     return m_stringArray[n];
 202 }
 203
 204 int wxComboBox::FindString(const wxString& s, bool WXUNUSED(bCase)) const
 205 {
 206     // FIXME: back to base class for not supported value of bCase
 207
 208     int *pos_list = NULL;
 209     int count = 0;
 210     wxXmString text( s );
 211     bool found = (XmComboBoxGetMatchPos((Widget) m_mainWidget,
 212         text(), &pos_list, &count) != 0);
 213
 214     if (found && count > 0)
 215     {
 216         int pos = pos_list[0] - 1;
 217         free(pos_list);
 218         return pos;
 219     }
 220
 221     return wxNOT_FOUND;
 222 }
 223
 224 void  wxComboBoxCallback (Widget WXUNUSED(w), XtPointer clientData,
 225                           XmComboBoxSelectionCallbackStruct * cbs)
 226 {
 227     wxComboBox *item = (wxComboBox *) clientData;
 228
 229     switch (cbs->reason)
 230     {
 231     case XmCR_SINGLE_SELECT:
 232     case XmCR_BROWSE_SELECT:
 233         {
 234             wxCommandEvent event (wxEVT_COMBOBOX,
 235                                   item->GetId());
 236             event.SetInt(cbs->index - 1);
 237             event.SetString( item->GetString ( event.GetInt() ) );
 238             if ( item->HasClientObjectData() )
 239                 event.SetClientObject( item->GetClientObject(cbs->index - 1) );
 240             else if ( item->HasClientUntypedData() )
 241                 event.SetClientData( item->GetClientData(cbs->index - 1) );
 242             event.SetExtraLong(true);
 243             event.SetEventObject(item);
 244             item->ProcessCommand (event);
 245             break;
 246         }
 247     case XmCR_VALUE_CHANGED:
 248         {
 249             wxCommandEvent event (wxEVT_TEXT, item->GetId());
 250             event.SetInt(-1);
 251             event.SetString( item->GetValue() );
 252             event.SetExtraLong(true);
 253             event.SetEventObject(item);
 254             item->ProcessCommand (event);
 255             break;
 256         }
 257     default:
 258         break;
 259     }
 260 }
 261
 262 void wxComboBox::ChangeFont(bool keepOriginalSize)
 263 {
 264     // Don't use the base class wxChoice's ChangeFont
 265     wxWindow::ChangeFont(keepOriginalSize);
 266 }
 267
 268 void wxComboBox::ChangeBackgroundColour()
 269 {
 270     wxWindow::ChangeBackgroundColour();
 271 }
 272
 273 void wxComboBox::ChangeForegroundColour()
 274 {
 275     wxWindow::ChangeForegroundColour();
 276 }
 277
 278 wxSize wxComboBox::DoGetBestSize() const
 279 {
 280     if( (GetWindowStyle() & wxCB_DROPDOWN) == wxCB_DROPDOWN ||
 281         (GetWindowStyle() & wxCB_READONLY) == wxCB_READONLY )
 282     {
 283         wxSize items = GetItemsSize();
 284         // FIXME arbitrary constants
 285         return wxSize( ( items.x ? items.x + 50 : 120 ),
 286                          items.y + 10 );
 287     }
 288     else
 289         return wxWindow::DoGetBestSize();
 290 }
 291
 292 WXWidget wxComboBox::GetTextWidget() const
 293 {
 294     return (WXWidget)XmComboBoxGetEditWidget((Widget) m_mainWidget);
 295 }
 296
 297 #endif // XmVersion < 2000
 298
 299 #endif // wxUSE_COMBOBOX