| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: menuitem.cpp |
| 3 | // Purpose: wxMenuItem implementation |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 11.11.97 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> |
| 9 | // Licence: wxWindows license |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // =========================================================================== |
| 13 | // declarations |
| 14 | // =========================================================================== |
| 15 | |
| 16 | // --------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // --------------------------------------------------------------------------- |
| 19 | |
| 20 | #ifdef __GNUG__ |
| 21 | #pragma implementation "menuitem.h" |
| 22 | #endif |
| 23 | |
| 24 | // For compilers that support precompilation, includes "wx.h". |
| 25 | #include "wx/wxprec.h" |
| 26 | |
| 27 | #ifdef __BORLANDC__ |
| 28 | #pragma hdrstop |
| 29 | #endif |
| 30 | |
| 31 | #ifndef WX_PRECOMP |
| 32 | #include "wx/font.h" |
| 33 | #include "wx/bitmap.h" |
| 34 | #include "wx/settings.h" |
| 35 | #include "wx/font.h" |
| 36 | #include "wx/window.h" |
| 37 | #include "wx/accel.h" |
| 38 | #include "wx/menu.h" |
| 39 | #include "wx/string.h" |
| 40 | #endif |
| 41 | |
| 42 | #include "wx/menuitem.h" |
| 43 | #include "wx/log.h" |
| 44 | |
| 45 | #if wxUSE_ACCEL |
| 46 | #include "wx/accel.h" |
| 47 | #endif // wxUSE_ACCEL |
| 48 | |
| 49 | #include "wx/msw/private.h" |
| 50 | |
| 51 | // --------------------------------------------------------------------------- |
| 52 | // macro |
| 53 | // --------------------------------------------------------------------------- |
| 54 | |
| 55 | // hide the ugly cast |
| 56 | #define GetHMenuOf(menu) ((HMENU)menu->GetHMenu()) |
| 57 | |
| 58 | // conditional compilation |
| 59 | #if wxUSE_OWNER_DRAWN |
| 60 | #define OWNER_DRAWN_ONLY( code ) if ( IsOwnerDrawn() ) code |
| 61 | #else // !wxUSE_OWNER_DRAWN |
| 62 | #define OWNER_DRAWN_ONLY( code ) |
| 63 | #endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN |
| 64 | |
| 65 | // ============================================================================ |
| 66 | // implementation |
| 67 | // ============================================================================ |
| 68 | |
| 69 | // ---------------------------------------------------------------------------- |
| 70 | // dynamic classes implementation |
| 71 | // ---------------------------------------------------------------------------- |
| 72 | |
| 73 | #if wxUSE_OWNER_DRAWN |
| 74 | IMPLEMENT_DYNAMIC_CLASS2(wxMenuItem, wxMenuItemBase, wxOwnerDrawn) |
| 75 | #else //!USE_OWNER_DRAWN |
| 76 | IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxMenuItemBase) |
| 77 | #endif //USE_OWNER_DRAWN |
| 78 | |
| 79 | // ---------------------------------------------------------------------------- |
| 80 | // wxMenuItem |
| 81 | // ---------------------------------------------------------------------------- |
| 82 | |
| 83 | // ctor & dtor |
| 84 | // ----------- |
| 85 | |
| 86 | wxMenuItem::wxMenuItem(wxMenu *pParentMenu, |
| 87 | int id, |
| 88 | const wxString& text, |
| 89 | const wxString& strHelp, |
| 90 | bool bCheckable, |
| 91 | wxMenu *pSubMenu) |
| 92 | #if wxUSE_OWNER_DRAWN |
| 93 | : wxOwnerDrawn(text, bCheckable) |
| 94 | #endif // owner drawn |
| 95 | { |
| 96 | wxASSERT_MSG( pParentMenu != NULL, wxT("a menu item should have a parent") ); |
| 97 | |
| 98 | #if wxUSE_OWNER_DRAWN |
| 99 | // set default menu colors |
| 100 | #define SYS_COLOR(c) (wxSystemSettings::GetSystemColour(wxSYS_COLOUR_##c)) |
| 101 | |
| 102 | SetTextColour(SYS_COLOR(MENUTEXT)); |
| 103 | SetBackgroundColour(SYS_COLOR(MENU)); |
| 104 | |
| 105 | // we don't want normal items be owner-drawn |
| 106 | ResetOwnerDrawn(); |
| 107 | |
| 108 | #undef SYS_COLOR |
| 109 | #endif // wxUSE_OWNER_DRAWN |
| 110 | |
| 111 | m_parentMenu = pParentMenu; |
| 112 | m_subMenu = pSubMenu; |
| 113 | m_isEnabled = TRUE; |
| 114 | m_isChecked = FALSE; |
| 115 | m_id = id; |
| 116 | m_text = text; |
| 117 | m_isCheckable = bCheckable; |
| 118 | m_help = strHelp; |
| 119 | } |
| 120 | |
| 121 | wxMenuItem::~wxMenuItem() |
| 122 | { |
| 123 | } |
| 124 | |
| 125 | // misc |
| 126 | // ---- |
| 127 | |
| 128 | // return the id for calling Win32 API functions |
| 129 | int wxMenuItem::GetRealId() const |
| 130 | { |
| 131 | return m_subMenu ? (int)m_subMenu->GetHMenu() : GetId(); |
| 132 | } |
| 133 | |
| 134 | // get item state |
| 135 | // -------------- |
| 136 | |
| 137 | bool wxMenuItem::IsChecked() const |
| 138 | { |
| 139 | int flag = ::GetMenuState(GetHMenuOf(m_parentMenu), GetId(), MF_BYCOMMAND); |
| 140 | |
| 141 | return (flag & MF_CHECKED) != 0; |
| 142 | } |
| 143 | |
| 144 | /* static */ |
| 145 | wxString wxMenuItemBase::GetLabelFromText(const wxString& text) |
| 146 | { |
| 147 | return wxStripMenuCodes(text); |
| 148 | } |
| 149 | |
| 150 | // accelerators |
| 151 | // ------------ |
| 152 | |
| 153 | #if wxUSE_ACCEL |
| 154 | |
| 155 | wxAcceleratorEntry *wxMenuItem::GetAccel() const |
| 156 | { |
| 157 | return wxGetAccelFromString(GetText()); |
| 158 | } |
| 159 | |
| 160 | #endif // wxUSE_ACCEL |
| 161 | |
| 162 | // change item state |
| 163 | // ----------------- |
| 164 | |
| 165 | void wxMenuItem::Enable(bool enable) |
| 166 | { |
| 167 | if ( m_isEnabled == enable ) |
| 168 | return; |
| 169 | |
| 170 | long rc = EnableMenuItem(GetHMenuOf(m_parentMenu), |
| 171 | GetRealId(), |
| 172 | MF_BYCOMMAND | |
| 173 | (enable ? MF_ENABLED : MF_GRAYED)); |
| 174 | |
| 175 | if ( rc == -1 ) { |
| 176 | wxLogLastError("EnableMenuItem"); |
| 177 | } |
| 178 | |
| 179 | wxMenuItemBase::Enable(enable); |
| 180 | } |
| 181 | |
| 182 | void wxMenuItem::Check(bool check) |
| 183 | { |
| 184 | wxCHECK_RET( m_isCheckable, wxT("only checkable items may be checked") ); |
| 185 | |
| 186 | if ( m_isChecked == check ) |
| 187 | return; |
| 188 | |
| 189 | long rc = CheckMenuItem(GetHMenuOf(m_parentMenu), |
| 190 | GetRealId(), |
| 191 | MF_BYCOMMAND | |
| 192 | (check ? MF_CHECKED : MF_UNCHECKED)); |
| 193 | |
| 194 | if ( rc == -1 ) { |
| 195 | wxLogLastError("CheckMenuItem"); |
| 196 | } |
| 197 | |
| 198 | wxMenuItemBase::Check(check); |
| 199 | } |
| 200 | |
| 201 | void wxMenuItem::SetText(const wxString& text) |
| 202 | { |
| 203 | // don't do anything if label didn't change |
| 204 | if ( m_text == text ) |
| 205 | return; |
| 206 | |
| 207 | wxMenuItemBase::SetText(text); |
| 208 | OWNER_DRAWN_ONLY( wxOwnerDrawn::SetName(text) ); |
| 209 | |
| 210 | HMENU hMenu = GetHMenuOf(m_parentMenu); |
| 211 | wxCHECK_RET( hMenu, wxT("menuitem without menu") ); |
| 212 | |
| 213 | #if wxUSE_ACCEL |
| 214 | m_parentMenu->UpdateAccel(this); |
| 215 | #endif // wxUSE_ACCEL |
| 216 | |
| 217 | UINT id = GetRealId(); |
| 218 | UINT flagsOld = ::GetMenuState(hMenu, id, MF_BYCOMMAND); |
| 219 | if ( flagsOld == 0xFFFFFFFF ) |
| 220 | { |
| 221 | wxLogLastError("GetMenuState"); |
| 222 | } |
| 223 | else |
| 224 | { |
| 225 | if ( IsSubMenu() ) |
| 226 | { |
| 227 | // high byte contains the number of items in a submenu for submenus |
| 228 | flagsOld &= 0xFF; |
| 229 | flagsOld |= MF_POPUP; |
| 230 | } |
| 231 | |
| 232 | LPCTSTR data; |
| 233 | |
| 234 | #if wxUSE_OWNER_DRAWN |
| 235 | if ( IsOwnerDrawn() ) |
| 236 | { |
| 237 | flagsOld |= MF_OWNERDRAW; |
| 238 | data = (LPCTSTR)this; |
| 239 | } |
| 240 | else |
| 241 | #endif //owner drawn |
| 242 | { |
| 243 | flagsOld |= MF_STRING; |
| 244 | data = (wxChar*) text.c_str(); |
| 245 | } |
| 246 | |
| 247 | if ( ::ModifyMenu(hMenu, id, |
| 248 | MF_BYCOMMAND | flagsOld, |
| 249 | id, data) == (int)0xFFFFFFFF ) |
| 250 | { |
| 251 | wxLogLastError(wxT("ModifyMenu")); |
| 252 | } |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | void wxMenuItem::SetCheckable(bool checkable) |
| 257 | { |
| 258 | wxMenuItemBase::SetCheckable(checkable); |
| 259 | OWNER_DRAWN_ONLY( wxOwnerDrawn::SetCheckable(checkable) ); |
| 260 | } |
| 261 | |
| 262 | // ---------------------------------------------------------------------------- |
| 263 | // wxMenuItemBase |
| 264 | // ---------------------------------------------------------------------------- |
| 265 | |
| 266 | wxMenuItem *wxMenuItemBase::New(wxMenu *parentMenu, |
| 267 | int id, |
| 268 | const wxString& name, |
| 269 | const wxString& help, |
| 270 | bool isCheckable, |
| 271 | wxMenu *subMenu) |
| 272 | { |
| 273 | return new wxMenuItem(parentMenu, id, name, help, isCheckable, subMenu); |
| 274 | } |