src/os2/combobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        combobox.cpp
   3 // Purpose:     wxComboBox class
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/13/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/combobox.h"
  13
  14 // For compilers that support precompilation, includes "wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #ifndef WX_PRECOMP
  18 #include "wx/setup.h"
  19 #endif
  20
  21 #if wxUSE_COMBOBOX
  22
  23 #include "wx/combobox.h"
  24 #include "wx/clipbrd.h"
  25 #include "wx/os2/private.h"
  26
  27 #if !USE_SHARED_LIBRARY
  28 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
  29 #endif
  30
  31 bool wxComboBox::OS2Command(WXUINT param, WXWORD WXUNUSED(id))
  32 {
  33   // TODO:
  34   /*
  35   if (param == CBN_SELCHANGE)
  36   {
  37     wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, m_windowId);
  38     event.SetInt(GetSelection());
  39     event.SetEventObject(this);
  40     event.SetString(GetStringSelection());
  41     ProcessCommand(event);
  42
  43     return TRUE;
  44   }
  45   else if (param == CBN_EDITCHANGE)
  46   {
  47     wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
  48     event.SetString(GetValue());
  49     event.SetEventObject(this);
  50     ProcessCommand(event);
  51
  52     return TRUE;
  53   }
  54   else
  55       return FALSE;
  56 */
  57   return FALSE;
  58 }
  59
  60 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
  61                         const wxString& value,
  62                         const wxPoint& pos,
  63                         const wxSize& size,
  64                         int n, const wxString choices[],
  65                         long style,
  66 #if wxUSE_VALIDATORS
  67 #  if defined(__VISAGECPP__)
  68                         const wxValidator* validator,
  69 #  else
  70                         const wxValidator& validator,
  71 #  endif
  72 #endif
  73                         const wxString& name)
  74 {
  75   SetName(name);
  76 #if wxUSE_VALIDATORS
  77   SetValidator(validator);
  78 #endif
  79   if (parent) parent->AddChild(this);
  80   SetBackgroundColour(parent->GetBackgroundColour()) ;
  81   SetForegroundColour(parent->GetForegroundColour()) ;
  82
  83   m_windowStyle = style;
  84
  85   if ( id == -1 )
  86     m_windowId = (int)NewControlId();
  87   else
  88     m_windowId = id;
  89
  90   int x = pos.x;
  91   int y = pos.y;
  92   int width = size.x;
  93   int height = size.y;
  94 // TODO:
  95 /*
  96   long msStyle = WS_CHILD | WS_TABSTOP | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL |
  97       CBS_NOINTEGRALHEIGHT;
  98
  99   if (m_windowStyle & wxCB_READONLY)
 100     msStyle |= CBS_DROPDOWNLIST;
 101   else if (m_windowStyle & wxCB_SIMPLE)
 102     msStyle |= CBS_SIMPLE; // A list (shown always) and edit control
 103   else
 104     msStyle |= CBS_DROPDOWN;
 105
 106   if (m_windowStyle & wxCB_SORT)
 107     msStyle |= CBS_SORT;
 108
 109   bool want3D;
 110   WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
 111
 112   // Even with extended styles, need to combine with WS_BORDER
 113   // for them to look right.
 114   if ( want3D || wxStyleHasBorder(m_windowStyle) )
 115     msStyle |= WS_BORDER;
 116
 117   m_hWnd = (WXHWND)::CreateWindowEx(exStyle, wxT("COMBOBOX"), NULL,
 118                    msStyle,
 119                    0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
 120                    wxGetInstance(), NULL);
 121
 122   wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create combobox") );
 123
 124   // Subclass again for purposes of dialog editing mode
 125   SubclassWin(m_hWnd);
 126
 127   SetFont(parent->GetFont());
 128   int i;
 129   for (i = 0; i < n; i++)
 130   {
 131     Append(choices[i]);
 132   }
 133
 134   SetSelection(i);
 135
 136   SetSize(x, y, width, height);
 137   if ( !value.IsEmpty() )
 138   {
 139     SetValue(value);
 140   }
 141 */
 142   return TRUE;
 143 }
 144
 145 void wxComboBox::SetValue(const wxString& value)
 146 {
 147   // If newlines are denoted by just 10, must stick 13 in front.
 148   int singletons = 0;
 149   int len = value.Length();
 150   int i;
 151   for (i = 0; i < len; i ++)
 152   {
 153     if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
 154       singletons ++;
 155   }
 156   if (singletons > 0)
 157   {
 158     wxChar *tmp = new wxChar[len + singletons + 1];
 159     int j = 0;
 160     for (i = 0; i < len; i ++)
 161     {
 162       if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
 163       {
 164         tmp[j] = 13;
 165         j ++;
 166       }
 167       tmp[j] = value[i];
 168       j ++;
 169     }
 170     tmp[j] = 0;
 171 //    SetWindowText(GetHwnd(), tmp);
 172     delete[] tmp;
 173   }
 174 //  else
 175 //    SetWindowText(GetHwnd(), value);
 176 }
 177
 178 // Clipboard operations
 179 void wxComboBox::Copy()
 180 {
 181   HWND hWnd = GetHwnd();
 182 //  SendMessage(hWnd, WM_COPY, 0, 0L);
 183 }
 184
 185 void wxComboBox::Cut()
 186 {
 187   HWND hWnd = GetHwnd();
 188 //  SendMessage(hWnd, WM_CUT, 0, 0L);
 189 }
 190
 191 void wxComboBox::Paste()
 192 {
 193   HWND hWnd = GetHwnd();
 194 //  SendMessage(hWnd, WM_PASTE, 0, 0L);
 195 }
 196
 197 void wxComboBox::SetEditable(bool editable)
 198 {
 199   // Can't implement in MSW?
 200 //  HWND hWnd = GetHwnd();
 201 //  SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);
 202 }
 203
 204 void wxComboBox::SetInsertionPoint(long pos)
 205 {
 206 /*
 207   HWND hWnd = GetHwnd();
 208   SendMessage(hWnd, EM_SETSEL, pos, pos);
 209   SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
 210   char *nothing = "";
 211   SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing);
 212 */
 213 }
 214
 215 void wxComboBox::SetInsertionPointEnd()
 216 {
 217 /*
 218   long pos = GetLastPosition();
 219   SetInsertionPoint(pos);
 220 */
 221 }
 222
 223 long wxComboBox::GetInsertionPoint() const
 224 {
 225 /*
 226   DWORD Pos=(DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L);
 227   return Pos&0xFFFF;
 228 */
 229   return 0;
 230 }
 231
 232 long wxComboBox::GetLastPosition() const
 233 {
 234 /*
 235     HWND hWnd = GetHwnd();
 236
 237     // Will always return a number > 0 (according to docs)
 238     int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L);
 239
 240     // This gets the char index for the _beginning_ of the last line
 241     int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L);
 242
 243     // Get number of characters in the last line. We'll add this to the character
 244     // index for the last line, 1st position.
 245     int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L);
 246
 247     return (long)(charIndex + lineLength);
 248 */
 249   return 0;
 250 }
 251
 252 void wxComboBox::Replace(long from, long to, const wxString& value)
 253 {
 254 #if wxUSE_CLIPBOARD
 255     HWND hWnd = GetHwnd();
 256     long fromChar = from;
 257     long toChar = to;
 258
 259     // Set selection and remove it
 260 //    SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar);
 261 //    SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
 262
 263     // Now replace with 'value', by pasting.
 264     wxSetClipboardData(wxDF_TEXT, (wxObject *)(const wxChar *)value, 0, 0);
 265
 266     // Paste into edit control
 267 //    SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L);
 268 #endif
 269 }
 270
 271 void wxComboBox::Remove(long from, long to)
 272 {
 273     HWND hWnd = GetHwnd();
 274     long fromChar = from;
 275     long toChar = to;
 276
 277     // Cut all selected text
 278 //    SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar);
 279 //    SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
 280 }
 281
 282 void wxComboBox::SetSelection(long from, long to)
 283 {
 284     HWND hWnd = GetHwnd();
 285     long fromChar = from;
 286     long toChar = to;
 287     // if from and to are both -1, it means
 288     // (in wxWindows) that all text should be selected.
 289     // This translates into Windows convention
 290     if ((from == -1) && (to == -1))
 291     {
 292       fromChar = 0;
 293       toChar = -1;
 294     }
 295
 296 //    SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)fromChar, (LPARAM)toChar);
 297 //    SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
 298 }
 299
 300 void wxComboBox::DoSetSize(int x, int y,
 301                            int width, int height,
 302                            int sizeFlags)
 303 {
 304     wxControl::DoSetSize(x, y, width, height, sizeFlags);
 305 }
 306
 307 #endif
 308  // wxUSE_COMBOBOX
 309