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