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                         const wxValidator& validator,
  68 #endif
  69                         const wxString& name)
  70 {
  71   SetName(name);
  72 #if wxUSE_VALIDATORS
  73   SetValidator(validator);
  74 #endif
  75   if (parent) parent->AddChild(this);
  76   SetBackgroundColour(parent->GetBackgroundColour()) ;
  77   SetForegroundColour(parent->GetForegroundColour()) ;
  78
  79   m_windowStyle = style;
  80
  81   if ( id == -1 )
  82     m_windowId = (int)NewControlId();
  83   else
  84     m_windowId = id;
  85
  86   int x = pos.x;
  87   int y = pos.y;
  88   int width = size.x;
  89   int height = size.y;
  90 // TODO:
  91 /*
  92   long msStyle = WS_CHILD | WS_TABSTOP | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL |
  93       CBS_NOINTEGRALHEIGHT;
  94
  95   if (m_windowStyle & wxCB_READONLY)
  96     msStyle |= CBS_DROPDOWNLIST;
  97   else if (m_windowStyle & wxCB_SIMPLE)
  98     msStyle |= CBS_SIMPLE; // A list (shown always) and edit control
  99   else
 100     msStyle |= CBS_DROPDOWN;
 101
 102   if (m_windowStyle & wxCB_SORT)
 103     msStyle |= CBS_SORT;
 104
 105   bool want3D;
 106   WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
 107
 108   // Even with extended styles, need to combine with WS_BORDER
 109   // for them to look right.
 110   if ( want3D || wxStyleHasBorder(m_windowStyle) )
 111     msStyle |= WS_BORDER;
 112
 113   m_hWnd = (WXHWND)::CreateWindowEx(exStyle, wxT("COMBOBOX"), NULL,
 114                    msStyle,
 115                    0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
 116                    wxGetInstance(), NULL);
 117
 118   wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create combobox") );
 119
 120   // Subclass again for purposes of dialog editing mode
 121   SubclassWin(m_hWnd);
 122
 123   SetFont(parent->GetFont());
 124   int i;
 125   for (i = 0; i < n; i++)
 126   {
 127     Append(choices[i]);
 128   }
 129
 130   SetSelection(i);
 131
 132   SetSize(x, y, width, height);
 133   if ( !value.IsEmpty() )
 134   {
 135     SetValue(value);
 136   }
 137 */
 138   return TRUE;
 139 }
 140
 141 void wxComboBox::SetValue(const wxString& value)
 142 {
 143   // If newlines are denoted by just 10, must stick 13 in front.
 144   int singletons = 0;
 145   int len = value.Length();
 146   int i;
 147   for (i = 0; i < len; i ++)
 148   {
 149     if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
 150       singletons ++;
 151   }
 152   if (singletons > 0)
 153   {
 154     wxChar *tmp = new wxChar[len + singletons + 1];
 155     int j = 0;
 156     for (i = 0; i < len; i ++)
 157     {
 158       if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
 159       {
 160         tmp[j] = 13;
 161         j ++;
 162       }
 163       tmp[j] = value[i];
 164       j ++;
 165     }
 166     tmp[j] = 0;
 167 //    SetWindowText(GetHwnd(), tmp);
 168     delete[] tmp;
 169   }
 170 //  else
 171 //    SetWindowText(GetHwnd(), value);
 172 }
 173
 174 // Clipboard operations
 175 void wxComboBox::Copy()
 176 {
 177   HWND hWnd = GetHwnd();
 178 //  SendMessage(hWnd, WM_COPY, 0, 0L);
 179 }
 180
 181 void wxComboBox::Cut()
 182 {
 183   HWND hWnd = GetHwnd();
 184 //  SendMessage(hWnd, WM_CUT, 0, 0L);
 185 }
 186
 187 void wxComboBox::Paste()
 188 {
 189   HWND hWnd = GetHwnd();
 190 //  SendMessage(hWnd, WM_PASTE, 0, 0L);
 191 }
 192
 193 void wxComboBox::SetEditable(bool editable)
 194 {
 195   // Can't implement in MSW?
 196 //  HWND hWnd = GetHwnd();
 197 //  SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);
 198 }
 199
 200 void wxComboBox::SetInsertionPoint(long pos)
 201 {
 202 /*
 203   HWND hWnd = GetHwnd();
 204   SendMessage(hWnd, EM_SETSEL, pos, pos);
 205   SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
 206   char *nothing = "";
 207   SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing);
 208 */
 209 }
 210
 211 void wxComboBox::SetInsertionPointEnd()
 212 {
 213 /*
 214   long pos = GetLastPosition();
 215   SetInsertionPoint(pos);
 216 */
 217 }
 218
 219 long wxComboBox::GetInsertionPoint() const
 220 {
 221 /*
 222   DWORD Pos=(DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L);
 223   return Pos&0xFFFF;
 224 */
 225   return 0;
 226 }
 227
 228 long wxComboBox::GetLastPosition() const
 229 {
 230 /*
 231     HWND hWnd = GetHwnd();
 232
 233     // Will always return a number > 0 (according to docs)
 234     int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L);
 235
 236     // This gets the char index for the _beginning_ of the last line
 237     int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L);
 238
 239     // Get number of characters in the last line. We'll add this to the character
 240     // index for the last line, 1st position.
 241     int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L);
 242
 243     return (long)(charIndex + lineLength);
 244 */
 245   return 0;
 246 }
 247
 248 void wxComboBox::Replace(long from, long to, const wxString& value)
 249 {
 250 #if wxUSE_CLIPBOARD
 251     HWND hWnd = GetHwnd();
 252     long fromChar = from;
 253     long toChar = to;
 254
 255     // Set selection and remove it
 256 //    SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar);
 257 //    SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
 258
 259     // Now replace with 'value', by pasting.
 260     wxSetClipboardData(wxDF_TEXT, (wxObject *)(const wxChar *)value, 0, 0);
 261
 262     // Paste into edit control
 263 //    SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L);
 264 #endif
 265 }
 266
 267 void wxComboBox::Remove(long from, long to)
 268 {
 269     HWND hWnd = GetHwnd();
 270     long fromChar = from;
 271     long toChar = to;
 272
 273     // Cut all selected text
 274 //    SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar);
 275 //    SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
 276 }
 277
 278 void wxComboBox::SetSelection(long from, long to)
 279 {
 280     HWND hWnd = GetHwnd();
 281     long fromChar = from;
 282     long toChar = to;
 283     // if from and to are both -1, it means
 284     // (in wxWindows) that all text should be selected.
 285     // This translates into Windows convention
 286     if ((from == -1) && (to == -1))
 287     {
 288       fromChar = 0;
 289       toChar = -1;
 290     }
 291
 292 //    SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)fromChar, (LPARAM)toChar);
 293 //    SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
 294 }
 295
 296 void wxComboBox::DoSetSize(int x, int y,
 297                            int width, int height,
 298                            int sizeFlags)
 299 {
 300     wxControl::DoSetSize(x, y, width, height, sizeFlags);
 301 }
 302
 303 #endif
 304  // wxUSE_COMBOBOX
 305