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