| 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 | #include "wx/settings.h" |
| 20 | #endif |
| 21 | |
| 22 | #if wxUSE_COMBOBOX |
| 23 | |
| 24 | #include "wx/combobox.h" |
| 25 | #include "wx/clipbrd.h" |
| 26 | #include "wx/os2/private.h" |
| 27 | |
| 28 | #define OWNER_DRAWN_LISTBOX_EXTRA_SPACE (1) |
| 29 | |
| 30 | MRESULT EXPENTRY wxComboEditWndProc( HWND hWnd |
| 31 | ,UINT uMessage |
| 32 | ,MPARAM wParam |
| 33 | ,MPARAM lParam |
| 34 | ); |
| 35 | // |
| 36 | // The pointer to standard wnd proc |
| 37 | // |
| 38 | static WXFARPROC gfnWndprocEdit = (WXFARPROC)NULL; |
| 39 | |
| 40 | IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl) |
| 41 | |
| 42 | bool wxComboBox::OS2Command( |
| 43 | WXUINT uParam |
| 44 | , WXWORD WXUNUSED(wId) |
| 45 | ) |
| 46 | { |
| 47 | long lSel = -1L; |
| 48 | wxString sValue; |
| 49 | |
| 50 | switch (uParam) |
| 51 | { |
| 52 | case CBN_LBSELECT: |
| 53 | if (GetSelection() > -1) |
| 54 | { |
| 55 | wxCommandEvent vEvent( wxEVT_COMMAND_COMBOBOX_SELECTED |
| 56 | ,GetId() |
| 57 | ); |
| 58 | |
| 59 | vEvent.SetInt(GetSelection()); |
| 60 | vEvent.SetEventObject(this); |
| 61 | vEvent.SetString((char*)GetStringSelection().c_str()); |
| 62 | ProcessCommand(vEvent); |
| 63 | } |
| 64 | break; |
| 65 | |
| 66 | case CBN_EFCHANGE: |
| 67 | { |
| 68 | wxCommandEvent vEvent( wxEVT_COMMAND_TEXT_UPDATED |
| 69 | ,GetId() |
| 70 | ); |
| 71 | |
| 72 | if (lSel == -1L) |
| 73 | sValue = GetValue(); |
| 74 | else |
| 75 | SetValue(sValue); |
| 76 | vEvent.SetString((char*)GetValue().c_str()); |
| 77 | vEvent.SetEventObject(this); |
| 78 | ProcessCommand(vEvent); |
| 79 | } |
| 80 | break; |
| 81 | } |
| 82 | // |
| 83 | // There is no return value for the CBN_ notifications, so always return |
| 84 | // false from here to pass the message to DefWindowProc() |
| 85 | // |
| 86 | return false; |
| 87 | } // end of wxComboBox::OS2Command |
| 88 | |
| 89 | bool wxComboBox::Create( |
| 90 | wxWindow* pParent |
| 91 | , wxWindowID vId |
| 92 | , const wxString& rsValue |
| 93 | , const wxPoint& rPos |
| 94 | , const wxSize& rSize |
| 95 | , const wxArrayString& asChoices |
| 96 | , long lStyle |
| 97 | , const wxValidator& rValidator |
| 98 | , const wxString& rsName |
| 99 | ) |
| 100 | { |
| 101 | wxCArrayString chs(asChoices); |
| 102 | |
| 103 | return Create(pParent, vId, rsValue, rPos, rSize, chs.GetCount(), |
| 104 | chs.GetStrings(), lStyle, rValidator, rsName); |
| 105 | } |
| 106 | |
| 107 | bool wxComboBox::Create( |
| 108 | wxWindow* pParent |
| 109 | , wxWindowID vId |
| 110 | , const wxString& rsValue |
| 111 | , const wxPoint& rPos |
| 112 | , const wxSize& rSize |
| 113 | , int n |
| 114 | , const wxString asChoices[] |
| 115 | , long lStyle |
| 116 | , const wxValidator& rValidator |
| 117 | , const wxString& rsName |
| 118 | ) |
| 119 | { |
| 120 | m_isShown = false; |
| 121 | |
| 122 | if (!CreateControl( pParent |
| 123 | ,vId |
| 124 | ,rPos |
| 125 | ,rSize |
| 126 | ,lStyle |
| 127 | ,rValidator |
| 128 | ,rsName |
| 129 | )) |
| 130 | return false; |
| 131 | |
| 132 | // |
| 133 | // Get the right style |
| 134 | // |
| 135 | long lSstyle = 0L; |
| 136 | |
| 137 | lSstyle = WS_TABSTOP | |
| 138 | WS_VISIBLE; |
| 139 | |
| 140 | if (lStyle & wxCLIP_SIBLINGS ) |
| 141 | lSstyle |= WS_CLIPSIBLINGS; |
| 142 | if (lStyle & wxCB_READONLY) |
| 143 | lSstyle |= CBS_DROPDOWNLIST; |
| 144 | else if (lStyle & wxCB_SIMPLE) |
| 145 | lSstyle |= CBS_SIMPLE; // A list (shown always) and edit control |
| 146 | else |
| 147 | lSstyle |= CBS_DROPDOWN; |
| 148 | |
| 149 | |
| 150 | if (!OS2CreateControl( "COMBOBOX" |
| 151 | ,lSstyle |
| 152 | )) |
| 153 | return false; |
| 154 | |
| 155 | // |
| 156 | // A choice/combobox normally has a white background (or other, depending |
| 157 | // on global settings) rather than inheriting the parent's background colour. |
| 158 | // |
| 159 | SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); |
| 160 | |
| 161 | SetFont(*wxSMALL_FONT); |
| 162 | |
| 163 | int i; |
| 164 | for (i = 0; i < n; i++) |
| 165 | { |
| 166 | Append(asChoices[i]); |
| 167 | } |
| 168 | |
| 169 | SetSize( rPos.x |
| 170 | ,rPos.y |
| 171 | ,rSize.x |
| 172 | ,rSize.y |
| 173 | ); |
| 174 | if (!rsValue.empty()) |
| 175 | { |
| 176 | SetValue(rsValue); |
| 177 | } |
| 178 | gfnWndprocEdit = (WXFARPROC)::WinSubclassWindow( (HWND)GetHwnd() |
| 179 | ,(PFNWP)wxComboEditWndProc |
| 180 | ); |
| 181 | ::WinSetWindowULong(GetHwnd(), QWL_USER, (ULONG)this); |
| 182 | Show(true); |
| 183 | return true; |
| 184 | } // end of wxComboBox::Create |
| 185 | |
| 186 | void wxComboBox::SetValue( |
| 187 | const wxString& rsValue |
| 188 | ) |
| 189 | { |
| 190 | if ( HasFlag(wxCB_READONLY) ) |
| 191 | SetStringSelection(rsValue); |
| 192 | else |
| 193 | ::WinSetWindowText(GetHwnd(), rsValue.c_str()); |
| 194 | } // end of wxComboBox::SetValue |
| 195 | |
| 196 | // |
| 197 | // Clipboard operations |
| 198 | // |
| 199 | void wxComboBox::Copy() |
| 200 | { |
| 201 | HWND hWnd = GetHwnd(); |
| 202 | |
| 203 | ::WinSendMsg(hWnd, EM_COPY, (MPARAM)0, (MPARAM)0); |
| 204 | } // end of wxComboBox::Copy |
| 205 | |
| 206 | void wxComboBox::Cut() |
| 207 | { |
| 208 | HWND hWnd = GetHwnd(); |
| 209 | |
| 210 | ::WinSendMsg(hWnd, EM_CUT, (MPARAM)0, (MPARAM)0); |
| 211 | } // end of wxComboBox::Cut |
| 212 | |
| 213 | void wxComboBox::Paste() |
| 214 | { |
| 215 | HWND hWnd = GetHwnd(); |
| 216 | |
| 217 | ::WinSendMsg(hWnd, EM_PASTE, (MPARAM)0, (MPARAM)0); |
| 218 | } // end of wxComboBox::Paste |
| 219 | |
| 220 | void wxComboBox::SetEditable( |
| 221 | bool bEditable |
| 222 | ) |
| 223 | { |
| 224 | HWND hWnd = GetHwnd(); |
| 225 | |
| 226 | ::WinSendMsg(hWnd, EM_SETREADONLY, (MPARAM)!bEditable, (MPARAM)0L); |
| 227 | } // end of wxComboBox::SetEditable |
| 228 | |
| 229 | void wxComboBox::SetInsertionPoint( |
| 230 | long lPos |
| 231 | ) |
| 232 | { |
| 233 | HWND hWnd = GetHwnd(); |
| 234 | |
| 235 | ::WinSendMsg(hWnd, EM_SETFIRSTCHAR, MPFROMLONG(lPos), (MPARAM)0); |
| 236 | } // end of wxComboBox::SetInsertionPoint |
| 237 | |
| 238 | void wxComboBox::SetInsertionPointEnd() |
| 239 | { |
| 240 | wxTextPos lPos = GetLastPosition(); |
| 241 | |
| 242 | SetInsertionPoint(lPos); |
| 243 | } // end of wxComboBox::SetInsertionPointEnd |
| 244 | |
| 245 | long wxComboBox::GetInsertionPoint() const |
| 246 | { |
| 247 | long lPos = LONGFROMMR(::WinSendMsg( GetHwnd() |
| 248 | ,LM_QUERYSELECTION |
| 249 | ,(MPARAM)0 |
| 250 | ,(MPARAM)0 |
| 251 | )); |
| 252 | if (lPos == LIT_NONE) |
| 253 | return wxNOT_FOUND; |
| 254 | return lPos; |
| 255 | } // end of wxComboBox::GetInsertionPoint |
| 256 | |
| 257 | wxTextPos wxComboBox::GetLastPosition() const |
| 258 | { |
| 259 | long lLineLength = 0L; |
| 260 | WNDPARAMS vParams; |
| 261 | |
| 262 | // |
| 263 | // Get number of characters in the last (only) line. We'll add this to the character |
| 264 | // index for the last line, 1st position. |
| 265 | // |
| 266 | |
| 267 | |
| 268 | vParams.fsStatus = WPM_CCHTEXT; |
| 269 | if (::WinSendMsg( GetHwnd() |
| 270 | ,WM_QUERYWINDOWPARAMS |
| 271 | ,&vParams |
| 272 | ,0 |
| 273 | )) |
| 274 | { |
| 275 | lLineLength = (long)vParams.cchText; |
| 276 | } |
| 277 | else |
| 278 | lLineLength = 0L; |
| 279 | return lLineLength; |
| 280 | } // end of wxComboBox::GetLastPosition |
| 281 | |
| 282 | void wxComboBox::Replace( |
| 283 | long lFrom |
| 284 | , long lTo |
| 285 | , const wxString& rsValue |
| 286 | ) |
| 287 | { |
| 288 | #if wxUSE_CLIPBOARD |
| 289 | HWND hWnd = GetHwnd(); |
| 290 | |
| 291 | // |
| 292 | // Set selection and remove it |
| 293 | // |
| 294 | ::WinSendMsg(hWnd, EM_SETSEL, MPFROM2SHORT((USHORT)lFrom, (USHORT)lTo), 0); |
| 295 | ::WinSendMsg(hWnd, EM_CUT, (MPARAM)0, (MPARAM)0); |
| 296 | |
| 297 | // |
| 298 | // Now replace with 'value', by pasting. |
| 299 | // |
| 300 | wxSetClipboardData( wxDF_TEXT |
| 301 | ,(wxObject *)rsValue.c_str() |
| 302 | ,0 |
| 303 | ,0 |
| 304 | ); |
| 305 | |
| 306 | // |
| 307 | // Paste into edit control |
| 308 | // |
| 309 | ::WinSendMsg(hWnd, EM_PASTE, (MPARAM)0, (MPARAM)0L); |
| 310 | #endif |
| 311 | } // end of wxComboBox::Replace |
| 312 | |
| 313 | void wxComboBox::Remove( |
| 314 | long lFrom |
| 315 | , long lTo |
| 316 | ) |
| 317 | { |
| 318 | #if wxUSE_CLIPBOARD |
| 319 | HWND hWnd = GetHwnd(); |
| 320 | |
| 321 | ::WinSendMsg(hWnd, EM_SETSEL, MPFROM2SHORT((USHORT)lFrom, (USHORT)lTo), 0); |
| 322 | ::WinSendMsg(hWnd, EM_CUT, (MPARAM)0, (MPARAM)0); |
| 323 | #endif |
| 324 | } // end of wxComboBox::Remove |
| 325 | |
| 326 | void wxComboBox::SetSelection( |
| 327 | long lFrom |
| 328 | , long lTo |
| 329 | ) |
| 330 | { |
| 331 | HWND hWnd = GetHwnd(); |
| 332 | long lFromChar = 0; |
| 333 | long lToChar = 0; |
| 334 | |
| 335 | // |
| 336 | // If from and to are both -1, it means |
| 337 | // (in wxWidgets) that all text should be selected. |
| 338 | // This translates into Windows convention |
| 339 | // |
| 340 | if ((lFrom == -1L) && (lTo == -1L)) |
| 341 | { |
| 342 | lFromChar = 0; |
| 343 | lToChar = -1; |
| 344 | } |
| 345 | |
| 346 | ::WinSendMsg( hWnd |
| 347 | ,EM_SETSEL |
| 348 | ,MPFROM2SHORT((USHORT)lFromChar, (USHORT)lToChar) |
| 349 | ,(MPARAM)0 |
| 350 | ); |
| 351 | } // end of wxComboBox::SetSelection |
| 352 | |
| 353 | void wxComboBox::DoSetSize( |
| 354 | int nX |
| 355 | , int nY |
| 356 | , int nWidth |
| 357 | , int nHeight |
| 358 | , int nSizeFlags |
| 359 | ) |
| 360 | { |
| 361 | wxControl::DoSetSize( nX |
| 362 | ,nY |
| 363 | ,nWidth |
| 364 | ,nHeight |
| 365 | ,nSizeFlags |
| 366 | ); |
| 367 | } // end of wxComboBox::DoSetSize |
| 368 | |
| 369 | bool wxComboBox::ProcessEditMsg( |
| 370 | WXUINT uMsg |
| 371 | , WXWPARAM wParam |
| 372 | , WXLPARAM lParam) |
| 373 | { |
| 374 | SHORT vFlag; |
| 375 | switch (uMsg) |
| 376 | { |
| 377 | case WM_CHAR: |
| 378 | vFlag = SHORT1FROMMP(wParam); |
| 379 | switch(vFlag) |
| 380 | { |
| 381 | case KC_CHAR: |
| 382 | return (HandleChar( wParam |
| 383 | ,lParam |
| 384 | ,true /* isASCII */ |
| 385 | )); |
| 386 | |
| 387 | case KC_PREVDOWN: |
| 388 | return (HandleKeyDown( wParam |
| 389 | ,lParam |
| 390 | )); |
| 391 | |
| 392 | case KC_KEYUP: |
| 393 | return (HandleKeyUp( wParam |
| 394 | ,lParam |
| 395 | )); |
| 396 | } |
| 397 | break; |
| 398 | |
| 399 | case WM_SETFOCUS: |
| 400 | if (SHORT1FROMMP((MPARAM)lParam) == TRUE) |
| 401 | return(HandleSetFocus((WXHWND)(HWND)wParam)); |
| 402 | else |
| 403 | return(HandleKillFocus((WXHWND)(HWND)wParam)); |
| 404 | break; |
| 405 | } |
| 406 | return false; |
| 407 | } // end of WinGuiBase_CComboBox::ProcessEditMsg |
| 408 | |
| 409 | MRESULT EXPENTRY wxComboEditWndProc( |
| 410 | HWND hWnd |
| 411 | , UINT uMessage |
| 412 | , MPARAM wParam |
| 413 | , MPARAM lParam |
| 414 | ) |
| 415 | { |
| 416 | switch (uMessage) |
| 417 | { |
| 418 | // |
| 419 | // Forward some messages to the combobox |
| 420 | // |
| 421 | case WM_SETFOCUS: |
| 422 | case WM_CHAR: |
| 423 | { |
| 424 | wxComboBox* pCombo = (wxComboBox *)::WinQueryWindowULong( hWnd |
| 425 | ,QWL_USER |
| 426 | ); |
| 427 | |
| 428 | if (pCombo->ProcessEditMsg( uMessage |
| 429 | ,wParam |
| 430 | ,lParam |
| 431 | )) |
| 432 | return ((MRESULT)0); |
| 433 | } |
| 434 | break; |
| 435 | |
| 436 | // |
| 437 | // TODO: Deal with tooltips here |
| 438 | // |
| 439 | } |
| 440 | return (gfnWndprocEdit(hWnd, (ULONG)uMessage, (MPARAM)wParam, (MPARAM)lParam)); |
| 441 | } // end of wxComboEditWndProc |
| 442 | |
| 443 | #endif |
| 444 | // wxUSE_COMBOBOX |
| 445 | |