| 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(const wxString& rTitle) |
| 62 | { |
| 63 | wxString Title; |
| 64 | const wxChar *pc; |
| 65 | for (pc = rTitle; *pc != wxT('\0'); pc++ ) |
| 66 | { |
| 67 | if (*pc == wxT('&') ) |
| 68 | { |
| 69 | if (*(pc+1) == wxT('&')) |
| 70 | { |
| 71 | pc++; |
| 72 | Title << wxT('&'); |
| 73 | } |
| 74 | else |
| 75 | Title << wxT('~'); |
| 76 | } |
| 77 | // else if (*pc == wxT('/')) |
| 78 | // { |
| 79 | // Title << wxT('\\'); |
| 80 | // } |
| 81 | else |
| 82 | { |
| 83 | if ( *pc == wxT('~') ) |
| 84 | { |
| 85 | // tildes must be doubled to prevent them from being |
| 86 | // interpreted as accelerator character prefix by PM ??? |
| 87 | Title << *pc; |
| 88 | } |
| 89 | Title << *pc; |
| 90 | } |
| 91 | } |
| 92 | return Title; |
| 93 | } |
| 94 | |
| 95 | // ============================================================================ |
| 96 | // implementation |
| 97 | // ============================================================================ |
| 98 | |
| 99 | // ---------------------------------------------------------------------------- |
| 100 | // dynamic classes implementation |
| 101 | // ---------------------------------------------------------------------------- |
| 102 | |
| 103 | #if wxUSE_OWNER_DRAWN |
| 104 | IMPLEMENT_DYNAMIC_CLASS2(wxMenuItem, wxMenuItemBase, wxOwnerDrawn) |
| 105 | #else //!USE_OWNER_DRAWN |
| 106 | IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxMenuItemBase) |
| 107 | #endif //USE_OWNER_DRAWN |
| 108 | |
| 109 | // ---------------------------------------------------------------------------- |
| 110 | // wxMenuItem |
| 111 | // ---------------------------------------------------------------------------- |
| 112 | |
| 113 | // ctor & dtor |
| 114 | // ----------- |
| 115 | |
| 116 | wxMenuItem::wxMenuItem( |
| 117 | wxMenu* pParentMenu |
| 118 | , int nId |
| 119 | , const wxString& rText |
| 120 | , const wxString& rStrHelp |
| 121 | , bool bCheckable |
| 122 | , wxMenu* pSubMenu |
| 123 | ) |
| 124 | #if wxUSE_OWNER_DRAWN |
| 125 | : wxOwnerDrawn( TextToLabel(rText) |
| 126 | ,bCheckable |
| 127 | ) |
| 128 | #endif // owner drawn |
| 129 | { |
| 130 | wxASSERT_MSG(pParentMenu != NULL, wxT("a menu item should have a parent")); |
| 131 | |
| 132 | #if wxUSE_OWNER_DRAWN |
| 133 | |
| 134 | // |
| 135 | // Set default menu colors |
| 136 | // |
| 137 | #define SYS_COLOR(c) (wxSystemSettings::GetSystemColour(wxSYS_COLOUR_##c)) |
| 138 | |
| 139 | SetTextColour(SYS_COLOR(MENUTEXT)); |
| 140 | SetBackgroundColour(SYS_COLOR(MENU)); |
| 141 | |
| 142 | // |
| 143 | // We don't want normal items be owner-drawn |
| 144 | // |
| 145 | ResetOwnerDrawn(); |
| 146 | |
| 147 | #undef SYS_COLOR |
| 148 | #endif // wxUSE_OWNER_DRAWN |
| 149 | |
| 150 | m_parentMenu = pParentMenu; |
| 151 | m_subMenu = pSubMenu; |
| 152 | m_isEnabled = TRUE; |
| 153 | m_isChecked = FALSE; |
| 154 | m_id = nId; |
| 155 | m_text = TextToLabel(rText); |
| 156 | m_isCheckable = bCheckable; |
| 157 | m_help = rStrHelp; |
| 158 | memset(&m_vMenuData, '\0', sizeof(m_vMenuData)); |
| 159 | m_vMenuData.id= nId; |
| 160 | } // end of wxMenuItem::wxMenuItem |
| 161 | |
| 162 | wxMenuItem::~wxMenuItem() |
| 163 | { |
| 164 | } // end of wxMenuItem::~wxMenuItem |
| 165 | |
| 166 | // |
| 167 | // Misc |
| 168 | // ---- |
| 169 | |
| 170 | // |
| 171 | // Return the id for calling Win32 API functions |
| 172 | // |
| 173 | int wxMenuItem::GetRealId() const |
| 174 | { |
| 175 | return m_subMenu ? (int)m_subMenu->GetHMenu() : GetId(); |
| 176 | } // end of wxMenuItem::GetRealId |
| 177 | |
| 178 | // |
| 179 | // Get item state |
| 180 | // -------------- |
| 181 | bool wxMenuItem::IsChecked() const |
| 182 | { |
| 183 | USHORT uFlag = SHORT1FROMMR(::WinSendMsg( GetHMenuOf(m_parentMenu) |
| 184 | ,MM_QUERYITEMATTR |
| 185 | ,MPFROM2SHORT(GetId(), TRUE) |
| 186 | ,MPFROMSHORT(MIA_CHECKED) |
| 187 | )); |
| 188 | |
| 189 | return (uFlag & MIA_CHECKED); |
| 190 | } // end of wxMenuItem::IsChecked |
| 191 | |
| 192 | wxString wxMenuItemBase::GetLabelFromText( |
| 193 | const wxString& rText |
| 194 | ) |
| 195 | { |
| 196 | wxString label; |
| 197 | for ( const wxChar *pc = rText.c_str(); *pc; pc++ ) |
| 198 | { |
| 199 | if ( *pc == wxT('~') || *pc == wxT('&') ) |
| 200 | { |
| 201 | // '~' is the escape character for GTK+ and '&' is the one for |
| 202 | // wxWindows - skip both of them |
| 203 | continue; |
| 204 | } |
| 205 | |
| 206 | label += *pc; |
| 207 | } |
| 208 | return label; |
| 209 | } |
| 210 | |
| 211 | // accelerators |
| 212 | // ------------ |
| 213 | |
| 214 | #if wxUSE_ACCEL |
| 215 | |
| 216 | wxAcceleratorEntry *wxMenuItem::GetAccel() const |
| 217 | { |
| 218 | return wxGetAccelFromString(GetText()); |
| 219 | } |
| 220 | |
| 221 | #endif // wxUSE_ACCEL |
| 222 | |
| 223 | // change item state |
| 224 | // ----------------- |
| 225 | |
| 226 | void wxMenuItem::Enable( |
| 227 | bool bEnable |
| 228 | ) |
| 229 | { |
| 230 | bool bOk; |
| 231 | |
| 232 | if (m_isEnabled == bEnable) |
| 233 | return; |
| 234 | if (bEnable) |
| 235 | bOk = (bool)::WinSendMsg( GetHMenuOf(m_parentMenu) |
| 236 | ,MM_SETITEMATTR |
| 237 | ,MPFROM2SHORT(GetRealId(), TRUE) |
| 238 | ,MPFROM2SHORT(MIA_DISABLED, FALSE) |
| 239 | ); |
| 240 | else |
| 241 | bOk = (bool)::WinSendMsg( GetHMenuOf(m_parentMenu) |
| 242 | ,MM_SETITEMATTR |
| 243 | ,MPFROM2SHORT(GetRealId(), TRUE) |
| 244 | ,MPFROM2SHORT(MIA_DISABLED, MIA_DISABLED) |
| 245 | ); |
| 246 | if (!bOk) |
| 247 | { |
| 248 | wxLogLastError("EnableMenuItem"); |
| 249 | } |
| 250 | wxMenuItemBase::Enable(bEnable); |
| 251 | } // end of wxMenuItem::Enable |
| 252 | |
| 253 | void wxMenuItem::Check( |
| 254 | bool bCheck |
| 255 | ) |
| 256 | { |
| 257 | bool bOk; |
| 258 | |
| 259 | wxCHECK_RET( m_isCheckable, wxT("only checkable items may be checked") ); |
| 260 | if (m_isChecked == bCheck) |
| 261 | return; |
| 262 | if (bCheck) |
| 263 | bOk = (bool)::WinSendMsg( GetHMenuOf(m_parentMenu) |
| 264 | ,MM_SETITEMATTR |
| 265 | ,MPFROM2SHORT(GetRealId(), TRUE) |
| 266 | ,MPFROM2SHORT(MIA_CHECKED, MIA_CHECKED) |
| 267 | ); |
| 268 | else |
| 269 | bOk = (bool)::WinSendMsg( GetHMenuOf(m_parentMenu) |
| 270 | ,MM_SETITEMATTR |
| 271 | ,MPFROM2SHORT(GetRealId(), TRUE) |
| 272 | ,MPFROM2SHORT(MIA_CHECKED, FALSE) |
| 273 | ); |
| 274 | if (!bOk) |
| 275 | { |
| 276 | wxLogLastError("CheckMenuItem"); |
| 277 | } |
| 278 | wxMenuItemBase::Check(bCheck); |
| 279 | } // end of wxMenuItem::Check |
| 280 | |
| 281 | void wxMenuItem::SetText( |
| 282 | const wxString& rText |
| 283 | ) |
| 284 | { |
| 285 | // |
| 286 | // Don't do anything if label didn't change |
| 287 | // |
| 288 | |
| 289 | wxString Text = TextToLabel(rText); |
| 290 | if (m_text == Text) |
| 291 | return; |
| 292 | |
| 293 | wxMenuItemBase::SetText(Text); |
| 294 | OWNER_DRAWN_ONLY(wxOwnerDrawn::SetName(Text)); |
| 295 | |
| 296 | HWND hMenu = GetHMenuOf(m_parentMenu); |
| 297 | |
| 298 | wxCHECK_RET(hMenu, wxT("menuitem without menu")); |
| 299 | |
| 300 | #if wxUSE_ACCEL |
| 301 | m_parentMenu->UpdateAccel(this); |
| 302 | #endif // wxUSE_ACCEL |
| 303 | |
| 304 | USHORT uId = GetRealId(); |
| 305 | MENUITEM vItem; |
| 306 | USHORT uFlagsOld; |
| 307 | |
| 308 | if (!::WinSendMsg( hMenu |
| 309 | ,MM_QUERYITEM |
| 310 | ,MPFROM2SHORT(uId, TRUE) |
| 311 | ,(MPARAM)&vItem |
| 312 | )) |
| 313 | { |
| 314 | wxLogLastError("GetMenuState"); |
| 315 | } |
| 316 | else |
| 317 | { |
| 318 | uFlagsOld = vItem.afStyle; |
| 319 | if (IsSubMenu()) |
| 320 | { |
| 321 | uFlagsOld |= MIS_SUBMENU; |
| 322 | } |
| 323 | |
| 324 | BYTE* pData; |
| 325 | |
| 326 | #if wxUSE_OWNER_DRAWN |
| 327 | if (IsOwnerDrawn()) |
| 328 | { |
| 329 | uFlagsOld |= MIS_OWNERDRAW; |
| 330 | pData = (BYTE*)this; |
| 331 | } |
| 332 | else |
| 333 | #endif //owner drawn |
| 334 | { |
| 335 | uFlagsOld |= MIS_TEXT; |
| 336 | pData = (BYTE*)Text.c_str(); |
| 337 | } |
| 338 | |
| 339 | // |
| 340 | // Set the style |
| 341 | // |
| 342 | if (!::WinSendMsg( hMenu |
| 343 | ,MM_SETITEM |
| 344 | ,MPFROM2SHORT(uId, TRUE) |
| 345 | ,(MPARAM)&vItem |
| 346 | )) |
| 347 | { |
| 348 | wxLogLastError(wxT("ModifyMenu")); |
| 349 | } |
| 350 | |
| 351 | // |
| 352 | // Set the text |
| 353 | // |
| 354 | if (::WinSendMsg( hMenu |
| 355 | ,MM_SETITEMTEXT |
| 356 | ,MPFROMSHORT(uId) |
| 357 | ,(MPARAM)pData |
| 358 | )) |
| 359 | { |
| 360 | wxLogLastError(wxT("ModifyMenu")); |
| 361 | } |
| 362 | } |
| 363 | } // end of wxMenuItem::SetText |
| 364 | |
| 365 | void wxMenuItem::SetCheckable( |
| 366 | bool bCheckable |
| 367 | ) |
| 368 | { |
| 369 | wxMenuItemBase::SetCheckable(bCheckable); |
| 370 | OWNER_DRAWN_ONLY(wxOwnerDrawn::SetCheckable(bCheckable)); |
| 371 | } // end of wxMenuItem::SetCheckable |
| 372 | |
| 373 | // ---------------------------------------------------------------------------- |
| 374 | // wxMenuItemBase |
| 375 | // ---------------------------------------------------------------------------- |
| 376 | |
| 377 | wxMenuItem* wxMenuItemBase::New( |
| 378 | wxMenu* pParentMenu |
| 379 | , int nId |
| 380 | , const wxString& rName |
| 381 | , const wxString& rHelp |
| 382 | , bool bIsCheckable |
| 383 | , wxMenu* pSubMenu |
| 384 | ) |
| 385 | { |
| 386 | return new wxMenuItem( pParentMenu |
| 387 | ,nId |
| 388 | ,rName |
| 389 | ,rHelp |
| 390 | ,bIsCheckable |
| 391 | ,pSubMenu |
| 392 | ); |
| 393 | } // end of wxMenuItemBase::New |
| 394 | |