| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: menuitem.cpp |
| 3 | // Purpose: wxMenuItem implementation |
| 4 | // Author: David Webster |
| 5 | // Modified by: |
| 6 | // Created: 10/10/98 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) David Webster |
| 9 | // Licence: wxWindows licence |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // headers & declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | #ifdef __GNUG__ |
| 17 | #pragma implementation "menuitem.h" |
| 18 | #endif |
| 19 | |
| 20 | // For compilers that support precompilation, includes "wx.h". |
| 21 | #include "wx/wxprec.h" |
| 22 | |
| 23 | #ifndef WX_PRECOMP |
| 24 | #include "wx/font.h" |
| 25 | #include "wx/bitmap.h" |
| 26 | #include "wx/settings.h" |
| 27 | #include "wx/font.h" |
| 28 | #include "wx/window.h" |
| 29 | #include "wx/accel.h" |
| 30 | #include "wx/menu.h" |
| 31 | #include "wx/string.h" |
| 32 | #endif |
| 33 | |
| 34 | #include "wx/menuitem.h" |
| 35 | #include "wx/log.h" |
| 36 | |
| 37 | #if wxUSE_ACCEL |
| 38 | #include "wx/accel.h" |
| 39 | #endif // wxUSE_ACCEL |
| 40 | |
| 41 | #include "wx/os2/private.h" |
| 42 | |
| 43 | // --------------------------------------------------------------------------- |
| 44 | // macro |
| 45 | // --------------------------------------------------------------------------- |
| 46 | |
| 47 | // hide the ugly cast |
| 48 | #define GetHMenuOf(menu) ((HMENU)menu->GetHMenu()) |
| 49 | |
| 50 | // conditional compilation |
| 51 | #if wxUSE_OWNER_DRAWN |
| 52 | #define OWNER_DRAWN_ONLY( code ) if ( IsOwnerDrawn() ) code |
| 53 | #else // !wxUSE_OWNER_DRAWN |
| 54 | #define OWNER_DRAWN_ONLY( code ) |
| 55 | #endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN |
| 56 | |
| 57 | // ---------------------------------------------------------------------------- |
| 58 | // static function for translating menu labels |
| 59 | // ---------------------------------------------------------------------------- |
| 60 | |
| 61 | static wxString TextToLabel( |
| 62 | const wxString& rsTitle |
| 63 | ) |
| 64 | { |
| 65 | wxString sTitle; |
| 66 | const wxChar* zPc; |
| 67 | |
| 68 | if (rsTitle.IsEmpty()) |
| 69 | return(sTitle); |
| 70 | |
| 71 | for (zPc = rsTitle.c_str(); *zPc != wxT('\0'); zPc++) |
| 72 | { |
| 73 | if (*zPc == wxT('&')) |
| 74 | { |
| 75 | if (*(zPc + 1) == wxT('&')) |
| 76 | { |
| 77 | zPc++; |
| 78 | sTitle << wxT('&'); |
| 79 | } |
| 80 | else |
| 81 | sTitle << wxT('~'); |
| 82 | } |
| 83 | else |
| 84 | { |
| 85 | if ( *zPc == wxT('~')) |
| 86 | { |
| 87 | // |
| 88 | // Tildes must be doubled to prevent them from being |
| 89 | // interpreted as accelerator character prefix by PM ??? |
| 90 | // |
| 91 | sTitle << *zPc; |
| 92 | } |
| 93 | sTitle << *zPc; |
| 94 | } |
| 95 | } |
| 96 | return(sTitle); |
| 97 | } // end of TextToLabel |
| 98 | |
| 99 | // ============================================================================ |
| 100 | // implementation |
| 101 | // ============================================================================ |
| 102 | |
| 103 | // ---------------------------------------------------------------------------- |
| 104 | // dynamic classes implementation |
| 105 | // ---------------------------------------------------------------------------- |
| 106 | |
| 107 | IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxObject) |
| 108 | |
| 109 | // ---------------------------------------------------------------------------- |
| 110 | // wxMenuItem |
| 111 | // ---------------------------------------------------------------------------- |
| 112 | |
| 113 | // ctor & dtor |
| 114 | // ----------- |
| 115 | |
| 116 | wxMenuItem::wxMenuItem( |
| 117 | wxMenu* pParentMenu |
| 118 | , int nId |
| 119 | , const wxString& rsText |
| 120 | , const wxString& rsHelp |
| 121 | , wxItemKind eKind |
| 122 | , wxMenu* pSubMenu |
| 123 | ) |
| 124 | : wxMenuItemBase( pParentMenu |
| 125 | ,nId |
| 126 | ,TextToLabel(rsText) |
| 127 | ,rsHelp |
| 128 | ,eKind |
| 129 | ,pSubMenu |
| 130 | ) |
| 131 | #if wxUSE_OWNER_DRAWN |
| 132 | , wxOwnerDrawn( TextToLabel(rsText) |
| 133 | ,eKind == wxITEM_CHECK |
| 134 | ) |
| 135 | #endif // owner drawn |
| 136 | { |
| 137 | wxASSERT_MSG(pParentMenu != NULL, wxT("a menu item should have a parent")); |
| 138 | memset(&m_vMenuData, '\0', sizeof(m_vMenuData)); |
| 139 | m_vMenuData.id = (USHORT)nId; |
| 140 | |
| 141 | Init(); |
| 142 | } // end of wxMenuItem::wxMenuItem |
| 143 | |
| 144 | wxMenuItem::wxMenuItem( |
| 145 | wxMenu* pParentMenu |
| 146 | , int nId |
| 147 | , const wxString& rsText |
| 148 | , const wxString& rsHelp |
| 149 | , bool bIsCheckable |
| 150 | , wxMenu* pSubMenu |
| 151 | ) |
| 152 | : wxMenuItemBase( pParentMenu |
| 153 | ,nId |
| 154 | ,TextToLabel(rsText) |
| 155 | ,rsHelp |
| 156 | ,bIsCheckable ? wxITEM_CHECK : wxITEM_NORMAL |
| 157 | ,pSubMenu |
| 158 | ) |
| 159 | #if wxUSE_OWNER_DRAWN |
| 160 | , wxOwnerDrawn( TextToLabel(rsText) |
| 161 | ,bIsCheckable |
| 162 | ) |
| 163 | #endif // owner drawn |
| 164 | { |
| 165 | wxASSERT_MSG(pParentMenu != NULL, wxT("a menu item should have a parent")); |
| 166 | memset(&m_vMenuData, '\0', sizeof(m_vMenuData)); |
| 167 | m_vMenuData.id = (USHORT)nId; |
| 168 | |
| 169 | Init(); |
| 170 | } // end of wxMenuItem::wxMenuItem |
| 171 | |
| 172 | void wxMenuItem::Init() |
| 173 | { |
| 174 | m_vRadioGroup.m_nStart = -1; |
| 175 | m_bIsRadioGroupStart = FALSE; |
| 176 | |
| 177 | #if wxUSE_OWNER_DRAWN |
| 178 | // |
| 179 | // Set default menu colors |
| 180 | // |
| 181 | #define SYS_COLOR(c) (wxSystemSettings::GetColour(wxSYS_COLOUR_##c)) |
| 182 | |
| 183 | SetTextColour(SYS_COLOR(MENUTEXT)); |
| 184 | SetBackgroundColour(SYS_COLOR(MENU)); |
| 185 | |
| 186 | // |
| 187 | // We don't want normal items be owner-drawn |
| 188 | // |
| 189 | ResetOwnerDrawn(); |
| 190 | #undef SYS_COLOR |
| 191 | |
| 192 | // |
| 193 | // Tell the owner drawing code to to show the accel string as well |
| 194 | // |
| 195 | SetAccelString(m_text.AfterFirst(_T('\t'))); |
| 196 | #endif // wxUSE_OWNER_DRAWN |
| 197 | } // end of wxMenuItem::Init |
| 198 | |
| 199 | wxMenuItem::~wxMenuItem() |
| 200 | { |
| 201 | } // end of wxMenuItem::~wxMenuItem |
| 202 | |
| 203 | // |
| 204 | // Misc |
| 205 | // ---- |
| 206 | |
| 207 | // |
| 208 | // Return the id for calling Win32 API functions |
| 209 | // |
| 210 | int wxMenuItem::GetRealId() const |
| 211 | { |
| 212 | return m_subMenu ? (int)m_subMenu->GetHMenu() : GetId(); |
| 213 | } // end of wxMenuItem::GetRealId |
| 214 | |
| 215 | // |
| 216 | // Get item state |
| 217 | // -------------- |
| 218 | bool wxMenuItem::IsChecked() const |
| 219 | { |
| 220 | USHORT uFlag = SHORT1FROMMR(::WinSendMsg( GetHMenuOf(m_parentMenu) |
| 221 | ,MM_QUERYITEMATTR |
| 222 | ,MPFROM2SHORT(GetId(), TRUE) |
| 223 | ,MPFROMSHORT(MIA_CHECKED) |
| 224 | )); |
| 225 | |
| 226 | return (uFlag & MIA_CHECKED); |
| 227 | } // end of wxMenuItem::IsChecked |
| 228 | |
| 229 | wxString wxMenuItemBase::GetLabelFromText( |
| 230 | const wxString& rsText |
| 231 | ) |
| 232 | { |
| 233 | wxString sLabel; |
| 234 | |
| 235 | for (const char* zPc = rsText.c_str(); *zPc; zPc++) |
| 236 | { |
| 237 | if (*zPc == wxT('~') || *zPc == wxT('&')) |
| 238 | { |
| 239 | // |
| 240 | // '~' is the escape character for OS/2PM and '&' is the one for |
| 241 | // wxWindows - skip both of them |
| 242 | // |
| 243 | continue; |
| 244 | } |
| 245 | sLabel += *zPc; |
| 246 | } |
| 247 | return sLabel; |
| 248 | } // end of wxMenuItemBase::GetLabelFromText |
| 249 | |
| 250 | // |
| 251 | // Radio group stuff |
| 252 | // ----------------- |
| 253 | // |
| 254 | void wxMenuItem::SetAsRadioGroupStart() |
| 255 | { |
| 256 | m_bIsRadioGroupStart = TRUE; |
| 257 | } // end of wxMenuItem::SetAsRadioGroupStart |
| 258 | |
| 259 | void wxMenuItem::SetRadioGroupStart( |
| 260 | int nStart |
| 261 | ) |
| 262 | { |
| 263 | wxASSERT_MSG( !m_bIsRadioGroupStart |
| 264 | ,_T("should only be called for the next radio items") |
| 265 | ); |
| 266 | |
| 267 | m_vRadioGroup.m_nStart = nStart; |
| 268 | } // wxMenuItem::SetRadioGroupStart |
| 269 | |
| 270 | void wxMenuItem::SetRadioGroupEnd( |
| 271 | int nEnd |
| 272 | ) |
| 273 | { |
| 274 | wxASSERT_MSG( m_bIsRadioGroupStart |
| 275 | ,_T("should only be called for the first radio item") |
| 276 | ); |
| 277 | m_vRadioGroup.m_nEnd = nEnd; |
| 278 | } // end of wxMenuItem::SetRadioGroupEnd |
| 279 | |
| 280 | // change item state |
| 281 | // ----------------- |
| 282 | |
| 283 | void wxMenuItem::Enable( |
| 284 | bool bEnable |
| 285 | ) |
| 286 | { |
| 287 | bool bOk; |
| 288 | |
| 289 | if (m_isEnabled == bEnable) |
| 290 | return; |
| 291 | if (bEnable) |
| 292 | bOk = (bool)::WinSendMsg( GetHMenuOf(m_parentMenu) |
| 293 | ,MM_SETITEMATTR |
| 294 | ,MPFROM2SHORT(GetRealId(), TRUE) |
| 295 | ,MPFROM2SHORT(MIA_DISABLED, FALSE) |
| 296 | ); |
| 297 | else |
| 298 | bOk = (bool)::WinSendMsg( GetHMenuOf(m_parentMenu) |
| 299 | ,MM_SETITEMATTR |
| 300 | ,MPFROM2SHORT(GetRealId(), TRUE) |
| 301 | ,MPFROM2SHORT(MIA_DISABLED, MIA_DISABLED) |
| 302 | ); |
| 303 | if (!bOk) |
| 304 | { |
| 305 | wxLogLastError("EnableMenuItem"); |
| 306 | } |
| 307 | wxMenuItemBase::Enable(bEnable); |
| 308 | } // end of wxMenuItem::Enable |
| 309 | |
| 310 | void wxMenuItem::Check( |
| 311 | bool bCheck |
| 312 | ) |
| 313 | { |
| 314 | bool bOk; |
| 315 | |
| 316 | wxCHECK_RET( IsCheckable(), wxT("only checkable items may be checked") ); |
| 317 | if (m_isChecked == bCheck) |
| 318 | return; |
| 319 | |
| 320 | HMENU hMenu = GetHmenuOf(m_parentMenu); |
| 321 | |
| 322 | if (GetKind() == wxITEM_RADIO) |
| 323 | { |
| 324 | // |
| 325 | // It doesn't make sense to uncheck a radio item - what would this do? |
| 326 | // |
| 327 | if (!bCheck) |
| 328 | return; |
| 329 | |
| 330 | // |
| 331 | // Get the index of this item in the menu |
| 332 | // |
| 333 | const wxMenuItemList& rItems = m_parentMenu->GetMenuItems(); |
| 334 | int nPos = rItems.IndexOf(this); |
| 335 | |
| 336 | wxCHECK_RET( nPos != wxNOT_FOUND |
| 337 | ,_T("menuitem not found in the menu items list?") |
| 338 | ); |
| 339 | |
| 340 | // |
| 341 | // Get the radio group range |
| 342 | // |
| 343 | int nStart; |
| 344 | int nEnd; |
| 345 | |
| 346 | if (m_bIsRadioGroupStart) |
| 347 | { |
| 348 | // |
| 349 | // We already have all information we need |
| 350 | // |
| 351 | nStart = nPos; |
| 352 | nEnd = m_vRadioGroup.m_nEnd; |
| 353 | } |
| 354 | else // next radio group item |
| 355 | { |
| 356 | // |
| 357 | // Get the radio group end from the start item |
| 358 | // |
| 359 | nStart = m_vRadioGroup.m_nStart; |
| 360 | nEnd = rItems.Item(nStart)->GetData()->m_vRadioGroup.m_nEnd; |
| 361 | } |
| 362 | |
| 363 | // |
| 364 | // Also uncheck all the other items in this radio group |
| 365 | // |
| 366 | wxMenuItemList::Node* pNode = rItems.Item(nStart); |
| 367 | |
| 368 | for (int n = nStart; n <= nEnd && pNode; n++) |
| 369 | { |
| 370 | if (n == nPos) |
| 371 | { |
| 372 | ::WinSendMsg( hMenu |
| 373 | ,MM_SETITEMATTR |
| 374 | ,MPFROM2SHORT(n, TRUE) |
| 375 | ,MPFROM2SHORT(MIA_CHECKED, MIA_CHECKED) |
| 376 | ); |
| 377 | } |
| 378 | if (n != nPos) |
| 379 | { |
| 380 | pNode->GetData()->m_isChecked = FALSE; |
| 381 | ::WinSendMsg( hMenu |
| 382 | ,MM_SETITEMATTR |
| 383 | ,MPFROM2SHORT(n, TRUE) |
| 384 | ,MPFROM2SHORT(MIA_CHECKED, FALSE) |
| 385 | ); |
| 386 | } |
| 387 | pNode = pNode->GetNext(); |
| 388 | } |
| 389 | } |
| 390 | else // check item |
| 391 | { |
| 392 | if (bCheck) |
| 393 | bOk = (bool)::WinSendMsg( hMenu |
| 394 | ,MM_SETITEMATTR |
| 395 | ,MPFROM2SHORT(GetRealId(), TRUE) |
| 396 | ,MPFROM2SHORT(MIA_CHECKED, MIA_CHECKED) |
| 397 | ); |
| 398 | else |
| 399 | bOk = (bool)::WinSendMsg( hMenu |
| 400 | ,MM_SETITEMATTR |
| 401 | ,MPFROM2SHORT(GetRealId(), TRUE) |
| 402 | ,MPFROM2SHORT(MIA_CHECKED, FALSE) |
| 403 | ); |
| 404 | } |
| 405 | if (!bOk) |
| 406 | { |
| 407 | wxLogLastError("CheckMenuItem"); |
| 408 | } |
| 409 | wxMenuItemBase::Check(bCheck); |
| 410 | } // end of wxMenuItem::Check |
| 411 | |
| 412 | void wxMenuItem::SetText( |
| 413 | const wxString& rText |
| 414 | ) |
| 415 | { |
| 416 | // |
| 417 | // Don't do anything if label didn't change |
| 418 | // |
| 419 | |
| 420 | wxString sText = TextToLabel(rText); |
| 421 | if (m_text == sText) |
| 422 | return; |
| 423 | |
| 424 | wxMenuItemBase::SetText(sText); |
| 425 | OWNER_DRAWN_ONLY(wxOwnerDrawn::SetName(sText)); |
| 426 | #if wxUSE_OWNER_DRAWN |
| 427 | SetAccelString(rText.AfterFirst(_T('\t'))); |
| 428 | #endif // wxUSE_OWNER_DRAWN |
| 429 | |
| 430 | HWND hMenu = GetHmenuOf(m_parentMenu); |
| 431 | |
| 432 | wxCHECK_RET(hMenu, wxT("menuitem without menu")); |
| 433 | |
| 434 | #if wxUSE_ACCEL |
| 435 | m_parentMenu->UpdateAccel(this); |
| 436 | #endif // wxUSE_ACCEL |
| 437 | |
| 438 | USHORT uId = GetRealId(); |
| 439 | MENUITEM vItem; |
| 440 | USHORT uFlagsOld; |
| 441 | |
| 442 | if (!::WinSendMsg( hMenu |
| 443 | ,MM_QUERYITEM |
| 444 | ,MPFROM2SHORT(uId, TRUE) |
| 445 | ,(MPARAM)&vItem |
| 446 | )) |
| 447 | { |
| 448 | wxLogLastError("GetMenuState"); |
| 449 | } |
| 450 | else |
| 451 | { |
| 452 | uFlagsOld = vItem.afStyle; |
| 453 | if (IsSubMenu()) |
| 454 | { |
| 455 | uFlagsOld |= MIS_SUBMENU; |
| 456 | } |
| 457 | |
| 458 | BYTE* pData; |
| 459 | |
| 460 | #if wxUSE_OWNER_DRAWN |
| 461 | if (IsOwnerDrawn()) |
| 462 | { |
| 463 | uFlagsOld |= MIS_OWNERDRAW; |
| 464 | pData = (BYTE*)this; |
| 465 | } |
| 466 | else |
| 467 | #endif //owner drawn |
| 468 | { |
| 469 | uFlagsOld |= MIS_TEXT; |
| 470 | pData = (BYTE*)sText.c_str(); |
| 471 | } |
| 472 | |
| 473 | // |
| 474 | // Set the style |
| 475 | // |
| 476 | if (!::WinSendMsg( hMenu |
| 477 | ,MM_SETITEM |
| 478 | ,MPFROM2SHORT(uId, TRUE) |
| 479 | ,(MPARAM)&vItem |
| 480 | )) |
| 481 | { |
| 482 | wxLogLastError(wxT("ModifyMenu")); |
| 483 | } |
| 484 | |
| 485 | // |
| 486 | // Set the text |
| 487 | // |
| 488 | if (::WinSendMsg( hMenu |
| 489 | ,MM_SETITEMTEXT |
| 490 | ,MPFROMSHORT(uId) |
| 491 | ,(MPARAM)pData |
| 492 | )) |
| 493 | { |
| 494 | wxLogLastError(wxT("ModifyMenu")); |
| 495 | } |
| 496 | } |
| 497 | } // end of wxMenuItem::SetText |
| 498 | |
| 499 | void wxMenuItem::SetCheckable( |
| 500 | bool bCheckable |
| 501 | ) |
| 502 | { |
| 503 | wxMenuItemBase::SetCheckable(bCheckable); |
| 504 | OWNER_DRAWN_ONLY(wxOwnerDrawn::SetCheckable(bCheckable)); |
| 505 | } // end of wxMenuItem::SetCheckable |
| 506 | |
| 507 | // ---------------------------------------------------------------------------- |
| 508 | // wxMenuItemBase |
| 509 | // ---------------------------------------------------------------------------- |
| 510 | |
| 511 | wxMenuItem* wxMenuItemBase::New( |
| 512 | wxMenu* pParentMenu |
| 513 | , int nId |
| 514 | , const wxString& rName |
| 515 | , const wxString& rHelp |
| 516 | , wxItemKind kind |
| 517 | , wxMenu* pSubMenu |
| 518 | ) |
| 519 | { |
| 520 | return new wxMenuItem( pParentMenu |
| 521 | ,nId |
| 522 | ,rName |
| 523 | ,rHelp |
| 524 | ,kind |
| 525 | ,pSubMenu |
| 526 | ); |
| 527 | } // end of wxMenuItemBase::New |
| 528 | |