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                         const wxValidator& validator,
  67                         const wxString& name)
  68 {
  69   SetName(name);
  70   SetValidator(validator);
  71   if (parent) parent->AddChild(this);
  72   SetBackgroundColour(parent->GetBackgroundColour()) ;
  73   SetForegroundColour(parent->GetForegroundColour()) ;
  74
  75   m_windowStyle = style;
  76
  77   if ( id == -1 )
  78     m_windowId = (int)NewControlId();
  79   else
  80     m_windowId = id;
  81
  82   int x = pos.x;
  83   int y = pos.y;
  84   int width = size.x;
  85   int height = size.y;
  86 // TODO:
  87 /*
  88   long msStyle = WS_CHILD | WS_TABSTOP | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL |
  89       CBS_NOINTEGRALHEIGHT;
  90
  91   if (m_windowStyle & wxCB_READONLY)
  92     msStyle |= CBS_DROPDOWNLIST;
  93   else if (m_windowStyle & wxCB_SIMPLE)
  94     msStyle |= CBS_SIMPLE; // A list (shown always) and edit control
  95   else
  96     msStyle |= CBS_DROPDOWN;
  97
  98   if (m_windowStyle & wxCB_SORT)
  99     msStyle |= CBS_SORT;
 100
 101   bool want3D;
 102   WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
 103
 104   // Even with extended styles, need to combine with WS_BORDER
 105   // for them to look right.
 106   if ( want3D || wxStyleHasBorder(m_windowStyle) )
 107     msStyle |= WS_BORDER;
 108
 109   m_hWnd = (WXHWND)::CreateWindowEx(exStyle, wxT("COMBOBOX"), NULL,
 110                    msStyle,
 111                    0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
 112                    wxGetInstance(), NULL);
 113
 114   wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create combobox") );
 115
 116   // Subclass again for purposes of dialog editing mode
 117   SubclassWin(m_hWnd);
 118
 119   SetFont(parent->GetFont());
 120   int i;
 121   for (i = 0; i < n; i++)
 122   {
 123     Append(choices[i]);
 124   }
 125
 126   SetSelection(i);
 127
 128   SetSize(x, y, width, height);
 129   if ( !value.IsEmpty() )
 130   {
 131     SetValue(value);
 132   }
 133 */
 134   return TRUE;
 135 }
 136
 137 void wxComboBox::SetValue(const wxString& value)
 138 {
 139   // If newlines are denoted by just 10, must stick 13 in front.
 140   int singletons = 0;
 141   int len = value.Length();
 142   int i;
 143   for (i = 0; i < len; i ++)
 144   {
 145     if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
 146       singletons ++;
 147   }
 148   if (singletons > 0)
 149   {
 150     wxChar *tmp = new wxChar[len + singletons + 1];
 151     int j = 0;
 152     for (i = 0; i < len; i ++)
 153     {
 154       if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
 155       {
 156         tmp[j] = 13;
 157         j ++;
 158       }
 159       tmp[j] = value[i];
 160       j ++;
 161     }
 162     tmp[j] = 0;
 163 //    SetWindowText(GetHwnd(), tmp);
 164     delete[] tmp;
 165   }
 166 //  else
 167 //    SetWindowText(GetHwnd(), value);
 168 }
 169
 170 // Clipboard operations
 171 void wxComboBox::Copy()
 172 {
 173   HWND hWnd = GetHwnd();
 174 //  SendMessage(hWnd, WM_COPY, 0, 0L);
 175 }
 176
 177 void wxComboBox::Cut()
 178 {
 179   HWND hWnd = GetHwnd();
 180 //  SendMessage(hWnd, WM_CUT, 0, 0L);
 181 }
 182
 183 void wxComboBox::Paste()
 184 {
 185   HWND hWnd = GetHwnd();
 186 //  SendMessage(hWnd, WM_PASTE, 0, 0L);
 187 }
 188
 189 void wxComboBox::SetEditable(bool editable)
 190 {
 191   // Can't implement in MSW?
 192 //  HWND hWnd = GetHwnd();
 193 //  SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);
 194 }
 195
 196 void wxComboBox::SetInsertionPoint(long pos)
 197 {
 198 /*
 199   HWND hWnd = GetHwnd();
 200   SendMessage(hWnd, EM_SETSEL, pos, pos);
 201   SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
 202   char *nothing = "";
 203   SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing);
 204 */
 205 }
 206
 207 void wxComboBox::SetInsertionPointEnd()
 208 {
 209 /*
 210   long pos = GetLastPosition();
 211   SetInsertionPoint(pos);
 212 */
 213 }
 214
 215 long wxComboBox::GetInsertionPoint() const
 216 {
 217 /*
 218   DWORD Pos=(DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L);
 219   return Pos&0xFFFF;
 220 */
 221   return 0;
 222 }
 223
 224 long wxComboBox::GetLastPosition() const
 225 {
 226 /*
 227     HWND hWnd = GetHwnd();
 228
 229     // Will always return a number > 0 (according to docs)
 230     int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L);
 231
 232     // This gets the char index for the _beginning_ of the last line
 233     int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L);
 234
 235     // Get number of characters in the last line. We'll add this to the character
 236     // index for the last line, 1st position.
 237     int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L);
 238
 239     return (long)(charIndex + lineLength);
 240 */
 241   return 0;
 242 }
 243
 244 void wxComboBox::Replace(long from, long to, const wxString& value)
 245 {
 246 #if wxUSE_CLIPBOARD
 247     HWND hWnd = GetHwnd();
 248     long fromChar = from;
 249     long toChar = to;
 250
 251     // Set selection and remove it
 252 //    SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar);
 253 //    SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
 254
 255     // Now replace with 'value', by pasting.
 256     wxSetClipboardData(wxDF_TEXT, (wxObject *)(const wxChar *)value, 0, 0);
 257
 258     // Paste into edit control
 259 //    SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L);
 260 #endif
 261 }
 262
 263 void wxComboBox::Remove(long from, long to)
 264 {
 265     HWND hWnd = GetHwnd();
 266     long fromChar = from;
 267     long toChar = to;
 268
 269     // Cut all selected text
 270 //    SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar);
 271 //    SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
 272 }
 273
 274 void wxComboBox::SetSelection(long from, long to)
 275 {
 276     HWND hWnd = GetHwnd();
 277     long fromChar = from;
 278     long toChar = to;
 279     // if from and to are both -1, it means
 280     // (in wxWindows) that all text should be selected.
 281     // This translates into Windows convention
 282     if ((from == -1) && (to == -1))
 283     {
 284       fromChar = 0;
 285       toChar = -1;
 286     }
 287
 288 //    SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)fromChar, (LPARAM)toChar);
 289 //    SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
 290 }
 291
 292 void wxComboBox::DoSetSize(int x, int y,
 293                            int width, int height,
 294                            int sizeFlags)
 295 {
 296     wxControl::DoSetSize(x, y, width, height, sizeFlags);
 297 }
 298
 299 #endif
 300  // wxUSE_COMBOBOX
 301