| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: univ/menu.cpp |
| 3 | // Purpose: wxMenuItem, wxMenu and wxMenuBar implementation |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 25.08.00 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com) |
| 9 | // Licence: wxWindows license |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | #ifdef __GNUG__ |
| 21 | #pragma implementation "univmenuitem.h" |
| 22 | #pragma implementation "univmenu.h" |
| 23 | #endif |
| 24 | |
| 25 | #include "wx/wxprec.h" |
| 26 | |
| 27 | #ifdef __BORLANDC__ |
| 28 | #pragma hdrstop |
| 29 | #endif |
| 30 | |
| 31 | #ifndef WX_PRECOMP |
| 32 | #include "wx/dynarray.h" |
| 33 | #include "wx/control.h" // for FindAccelIndex() |
| 34 | #include "wx/menu.h" |
| 35 | #include "wx/settings.h" |
| 36 | #include "wx/accel.h" |
| 37 | #include "wx/log.h" |
| 38 | #endif // WX_PRECOMP |
| 39 | |
| 40 | #if wxUSE_MENUS |
| 41 | |
| 42 | #include "wx/popupwin.h" |
| 43 | #include "wx/evtloop.h" |
| 44 | #include "wx/dcclient.h" |
| 45 | #include "wx/frame.h" |
| 46 | |
| 47 | #include "wx/univ/renderer.h" |
| 48 | |
| 49 | #ifdef __WXMSW__ |
| 50 | #include "wx/msw/private.h" |
| 51 | #endif // __WXMSW__ |
| 52 | |
| 53 | // ---------------------------------------------------------------------------- |
| 54 | // wxMenuInfo contains all extra information about top level menus we need |
| 55 | // ---------------------------------------------------------------------------- |
| 56 | |
| 57 | class WXDLLEXPORT wxMenuInfo |
| 58 | { |
| 59 | public: |
| 60 | // ctor |
| 61 | wxMenuInfo(const wxString& text) |
| 62 | { |
| 63 | SetLabel(text); |
| 64 | SetEnabled(); |
| 65 | } |
| 66 | |
| 67 | // modifiers |
| 68 | |
| 69 | void SetLabel(const wxString& text) |
| 70 | { |
| 71 | // remember the accel char (may be -1 if none) |
| 72 | m_indexAccel = wxControl::FindAccelIndex(text, &m_label); |
| 73 | |
| 74 | // calculate the width later, after the menu bar is created |
| 75 | m_width = 0; |
| 76 | } |
| 77 | |
| 78 | void SetEnabled(bool enabled = TRUE) { m_isEnabled = enabled; } |
| 79 | |
| 80 | // accessors |
| 81 | |
| 82 | const wxString& GetLabel() const { return m_label; } |
| 83 | bool IsEnabled() const { return m_isEnabled; } |
| 84 | wxCoord GetWidth(wxMenuBar *menubar) const |
| 85 | { |
| 86 | if ( !m_width ) |
| 87 | { |
| 88 | wxConstCast(this, wxMenuInfo)->CalcWidth(menubar); |
| 89 | } |
| 90 | |
| 91 | return m_width; |
| 92 | } |
| 93 | |
| 94 | int GetAccelIndex() const { return m_indexAccel; } |
| 95 | |
| 96 | private: |
| 97 | void CalcWidth(wxMenuBar *menubar) |
| 98 | { |
| 99 | wxSize size; |
| 100 | wxClientDC dc(menubar); |
| 101 | dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); |
| 102 | dc.GetTextExtent(m_label, &size.x, &size.y); |
| 103 | |
| 104 | // adjust for the renderer we use and store the width |
| 105 | m_width = menubar->GetRenderer()->GetMenuBarItemSize(size).x; |
| 106 | } |
| 107 | |
| 108 | wxString m_label; |
| 109 | wxCoord m_width; |
| 110 | int m_indexAccel; |
| 111 | bool m_isEnabled; |
| 112 | }; |
| 113 | |
| 114 | #include "wx/arrimpl.cpp" |
| 115 | |
| 116 | WX_DEFINE_OBJARRAY(wxMenuInfoArray); |
| 117 | |
| 118 | // ---------------------------------------------------------------------------- |
| 119 | // wxPopupMenuWindow: a popup window showing a menu |
| 120 | // ---------------------------------------------------------------------------- |
| 121 | |
| 122 | class wxPopupMenuWindow : public wxPopupTransientWindow |
| 123 | { |
| 124 | public: |
| 125 | wxPopupMenuWindow(wxWindow *parent, wxMenu *menu); |
| 126 | |
| 127 | ~wxPopupMenuWindow(); |
| 128 | |
| 129 | // override the base class version to select the first item initially |
| 130 | virtual void Popup(wxWindow *focus = NULL); |
| 131 | |
| 132 | // override the base class version to dismiss any open submenus |
| 133 | virtual void Dismiss(); |
| 134 | |
| 135 | // notify the menu when the window disappears from screen |
| 136 | virtual void OnDismiss(); |
| 137 | |
| 138 | // called when a submenu is dismissed |
| 139 | void OnSubmenuDismiss() { m_hasOpenSubMenu = FALSE; } |
| 140 | |
| 141 | // get the currently selected item (may be NULL) |
| 142 | wxMenuItem *GetCurrentItem() const |
| 143 | { |
| 144 | return m_nodeCurrent ? m_nodeCurrent->GetData() : NULL; |
| 145 | } |
| 146 | |
| 147 | // find the menu item at given position |
| 148 | wxMenuItemList::Node *GetMenuItemFromPoint(const wxPoint& pt) const; |
| 149 | |
| 150 | // refresh the given item |
| 151 | void RefreshItem(wxMenuItem *item); |
| 152 | |
| 153 | // preselect the first item |
| 154 | void SelectFirst() { SetCurrent(m_menu->GetMenuItems().GetFirst()); } |
| 155 | |
| 156 | // process the key event, return TRUE if done |
| 157 | bool ProcessKeyDown(int key); |
| 158 | |
| 159 | // process mouse move event |
| 160 | void ProcessMouseMove(const wxPoint& pt); |
| 161 | |
| 162 | // don't dismiss the popup window if the parent menu was clicked |
| 163 | virtual bool ProcessLeftDown(wxMouseEvent& event); |
| 164 | |
| 165 | protected: |
| 166 | // how did we perform this operation? |
| 167 | enum InputMethod |
| 168 | { |
| 169 | WithKeyboard, |
| 170 | WithMouse |
| 171 | }; |
| 172 | |
| 173 | // draw the menu inside this window |
| 174 | virtual void DoDraw(wxControlRenderer *renderer); |
| 175 | |
| 176 | // event handlers |
| 177 | void OnLeftUp(wxMouseEvent& event); |
| 178 | void OnMouseMove(wxMouseEvent& event); |
| 179 | void OnMouseLeave(wxMouseEvent& event); |
| 180 | void OnKeyDown(wxKeyEvent& event); |
| 181 | |
| 182 | // reset the current item and node |
| 183 | void ResetCurrent(); |
| 184 | |
| 185 | // set the current node and item withotu refreshing anything |
| 186 | void SetCurrent(wxMenuItemList::Node *node); |
| 187 | |
| 188 | // change the current item refreshing the old and new items |
| 189 | void ChangeCurrent(wxMenuItemList::Node *node); |
| 190 | |
| 191 | // activate item, i.e. call either ClickItem() or OpenSubmenu() depending |
| 192 | // on what it is, return TRUE if something was done (i.e. it's not a |
| 193 | // separator...) |
| 194 | bool ActivateItem(wxMenuItem *item, InputMethod how = WithKeyboard); |
| 195 | |
| 196 | // send the event about the item click |
| 197 | void ClickItem(wxMenuItem *item); |
| 198 | |
| 199 | // show the submenu for this item |
| 200 | void OpenSubmenu(wxMenuItem *item, InputMethod how = WithKeyboard); |
| 201 | |
| 202 | // can this tiem be opened? |
| 203 | bool CanOpen(wxMenuItem *item) |
| 204 | { |
| 205 | return item && item->IsEnabled() && item->IsSubMenu(); |
| 206 | } |
| 207 | |
| 208 | // dismiss the menu and all parent menus too |
| 209 | void DismissAndNotify(); |
| 210 | |
| 211 | // react to dimissing this menu and also dismiss the parent if |
| 212 | // dismissParent |
| 213 | void HandleDismiss(bool dismissParent); |
| 214 | |
| 215 | // do we have an open submenu? |
| 216 | bool HasOpenSubmenu() const { return m_hasOpenSubMenu; } |
| 217 | |
| 218 | // get previous node after the current one |
| 219 | wxMenuItemList::Node *GetPrevNode() const; |
| 220 | |
| 221 | // get previous node before the given one, wrapping if it's the first one |
| 222 | wxMenuItemList::Node *GetPrevNode(wxMenuItemList::Node *node) const; |
| 223 | |
| 224 | // get next node after the current one |
| 225 | wxMenuItemList::Node *GetNextNode() const; |
| 226 | |
| 227 | // get next node after the given one, wrapping if it's the last one |
| 228 | wxMenuItemList::Node *GetNextNode(wxMenuItemList::Node *node) const; |
| 229 | |
| 230 | private: |
| 231 | // the menu we show |
| 232 | wxMenu *m_menu; |
| 233 | |
| 234 | // the menu node corresponding to the current item |
| 235 | wxMenuItemList::Node *m_nodeCurrent; |
| 236 | |
| 237 | // do we currently have an opened submenu? |
| 238 | bool m_hasOpenSubMenu; |
| 239 | |
| 240 | DECLARE_EVENT_TABLE() |
| 241 | }; |
| 242 | |
| 243 | // ---------------------------------------------------------------------------- |
| 244 | // wxMenuKbdRedirector: an event handler which redirects kbd input to wxMenu |
| 245 | // ---------------------------------------------------------------------------- |
| 246 | |
| 247 | class wxMenuKbdRedirector : public wxEvtHandler |
| 248 | { |
| 249 | public: |
| 250 | wxMenuKbdRedirector(wxMenu *menu) { m_menu = menu; } |
| 251 | |
| 252 | virtual bool ProcessEvent(wxEvent& event) |
| 253 | { |
| 254 | if ( event.GetEventType() == wxEVT_KEY_DOWN ) |
| 255 | { |
| 256 | return m_menu->ProcessKeyDown(((wxKeyEvent &)event).GetKeyCode()); |
| 257 | } |
| 258 | else |
| 259 | { |
| 260 | // return FALSE; |
| 261 | |
| 262 | return wxEvtHandler::ProcessEvent(event); |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | private: |
| 267 | wxMenu *m_menu; |
| 268 | }; |
| 269 | |
| 270 | // ---------------------------------------------------------------------------- |
| 271 | // wxWin macros |
| 272 | // ---------------------------------------------------------------------------- |
| 273 | |
| 274 | IMPLEMENT_DYNAMIC_CLASS(wxMenu, wxEvtHandler) |
| 275 | IMPLEMENT_DYNAMIC_CLASS(wxMenuBar, wxWindow) |
| 276 | IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxObject) |
| 277 | |
| 278 | BEGIN_EVENT_TABLE(wxPopupMenuWindow, wxPopupTransientWindow) |
| 279 | EVT_KEY_DOWN(wxPopupMenuWindow::OnKeyDown) |
| 280 | |
| 281 | EVT_LEFT_UP(wxPopupMenuWindow::OnLeftUp) |
| 282 | EVT_MOTION(wxPopupMenuWindow::OnMouseMove) |
| 283 | EVT_LEAVE_WINDOW(wxPopupMenuWindow::OnMouseLeave) |
| 284 | END_EVENT_TABLE() |
| 285 | |
| 286 | BEGIN_EVENT_TABLE(wxMenuBar, wxMenuBarBase) |
| 287 | EVT_KILL_FOCUS(wxMenuBar::OnKillFocus) |
| 288 | |
| 289 | EVT_KEY_DOWN(wxMenuBar::OnKeyDown) |
| 290 | |
| 291 | EVT_LEFT_DOWN(wxMenuBar::OnLeftDown) |
| 292 | EVT_MOTION(wxMenuBar::OnMouseMove) |
| 293 | END_EVENT_TABLE() |
| 294 | |
| 295 | // ============================================================================ |
| 296 | // implementation |
| 297 | // ============================================================================ |
| 298 | |
| 299 | // ---------------------------------------------------------------------------- |
| 300 | // wxPopupMenuWindow |
| 301 | // ---------------------------------------------------------------------------- |
| 302 | |
| 303 | wxPopupMenuWindow::wxPopupMenuWindow(wxWindow *parent, wxMenu *menu) |
| 304 | { |
| 305 | m_menu = menu; |
| 306 | m_hasOpenSubMenu = FALSE; |
| 307 | |
| 308 | ResetCurrent(); |
| 309 | |
| 310 | (void)Create(parent, wxBORDER_RAISED); |
| 311 | |
| 312 | SetCursor(wxCURSOR_ARROW); |
| 313 | } |
| 314 | |
| 315 | wxPopupMenuWindow::~wxPopupMenuWindow() |
| 316 | { |
| 317 | // When m_popupMenu in wxMenu is deleted because it |
| 318 | // is a child of an old menu bar being deleted (note: it does |
| 319 | // not get destroyed by the wxMenu destructor, but |
| 320 | // by DestroyChildren()), m_popupMenu should be reset to NULL. |
| 321 | |
| 322 | m_menu->m_popupMenu = NULL; |
| 323 | } |
| 324 | |
| 325 | // ---------------------------------------------------------------------------- |
| 326 | // wxPopupMenuWindow current item/node handling |
| 327 | // ---------------------------------------------------------------------------- |
| 328 | |
| 329 | void wxPopupMenuWindow::ResetCurrent() |
| 330 | { |
| 331 | SetCurrent(NULL); |
| 332 | } |
| 333 | |
| 334 | void wxPopupMenuWindow::SetCurrent(wxMenuItemList::Node *node) |
| 335 | { |
| 336 | m_nodeCurrent = node; |
| 337 | } |
| 338 | |
| 339 | void wxPopupMenuWindow::ChangeCurrent(wxMenuItemList::Node *node) |
| 340 | { |
| 341 | if ( node != m_nodeCurrent ) |
| 342 | { |
| 343 | wxMenuItemList::Node *nodeOldCurrent = m_nodeCurrent; |
| 344 | |
| 345 | m_nodeCurrent = node; |
| 346 | |
| 347 | if ( nodeOldCurrent ) |
| 348 | { |
| 349 | wxMenuItem *item = nodeOldCurrent->GetData(); |
| 350 | wxCHECK_RET( item, _T("no current item?") ); |
| 351 | |
| 352 | // if it was the currently opened menu, close it |
| 353 | if ( item->IsSubMenu() && item->GetSubMenu()->IsShown() ) |
| 354 | { |
| 355 | item->GetSubMenu()->Dismiss(); |
| 356 | OnSubmenuDismiss(); |
| 357 | } |
| 358 | |
| 359 | RefreshItem(item); |
| 360 | } |
| 361 | |
| 362 | if ( m_nodeCurrent ) |
| 363 | RefreshItem(m_nodeCurrent->GetData()); |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | wxMenuItemList::Node *wxPopupMenuWindow::GetPrevNode() const |
| 368 | { |
| 369 | // return the last node if there had been no previously selected one |
| 370 | return m_nodeCurrent ? GetPrevNode(m_nodeCurrent) |
| 371 | : m_menu->GetMenuItems().GetLast(); |
| 372 | } |
| 373 | |
| 374 | wxMenuItemList::Node * |
| 375 | wxPopupMenuWindow::GetPrevNode(wxMenuItemList::Node *node) const |
| 376 | { |
| 377 | if ( node ) |
| 378 | { |
| 379 | node = node->GetPrevious(); |
| 380 | if ( !node ) |
| 381 | { |
| 382 | node = m_menu->GetMenuItems().GetLast(); |
| 383 | } |
| 384 | } |
| 385 | //else: the menu is empty |
| 386 | |
| 387 | return node; |
| 388 | } |
| 389 | |
| 390 | wxMenuItemList::Node *wxPopupMenuWindow::GetNextNode() const |
| 391 | { |
| 392 | // return the first node if there had been no previously selected one |
| 393 | return m_nodeCurrent ? GetNextNode(m_nodeCurrent) |
| 394 | : m_menu->GetMenuItems().GetFirst(); |
| 395 | } |
| 396 | |
| 397 | wxMenuItemList::Node * |
| 398 | wxPopupMenuWindow::GetNextNode(wxMenuItemList::Node *node) const |
| 399 | { |
| 400 | if ( node ) |
| 401 | { |
| 402 | node = node->GetNext(); |
| 403 | if ( !node ) |
| 404 | { |
| 405 | node = m_menu->GetMenuItems().GetFirst(); |
| 406 | } |
| 407 | } |
| 408 | //else: the menu is empty |
| 409 | |
| 410 | return node; |
| 411 | } |
| 412 | |
| 413 | // ---------------------------------------------------------------------------- |
| 414 | // wxPopupMenuWindow popup/dismiss |
| 415 | // ---------------------------------------------------------------------------- |
| 416 | |
| 417 | void wxPopupMenuWindow::Popup(wxWindow *focus) |
| 418 | { |
| 419 | // check that the current item had been properly reset before |
| 420 | wxASSERT_MSG( !m_nodeCurrent || |
| 421 | m_nodeCurrent == m_menu->GetMenuItems().GetFirst(), |
| 422 | _T("menu current item preselected incorrectly") ); |
| 423 | |
| 424 | wxPopupTransientWindow::Popup(focus); |
| 425 | |
| 426 | #ifdef __WXMSW__ |
| 427 | // ensure that this window is really on top of everything: without using |
| 428 | // SetWindowPos() it can be covered by its parent menu which is not |
| 429 | // really what we want |
| 430 | wxMenu *menuParent = m_menu->GetParent(); |
| 431 | if ( menuParent ) |
| 432 | { |
| 433 | wxPopupMenuWindow *win = menuParent->m_popupMenu; |
| 434 | |
| 435 | // if we're shown, the parent menu must be also shown |
| 436 | wxCHECK_RET( win, _T("parent menu is not shown?") ); |
| 437 | |
| 438 | if ( !::SetWindowPos(GetHwndOf(win), GetHwnd(), |
| 439 | 0, 0, 0, 0, |
| 440 | SWP_NOMOVE | SWP_NOSIZE | SWP_NOREDRAW) ) |
| 441 | { |
| 442 | wxLogLastError(_T("SetWindowPos(HWND_TOP)")); |
| 443 | } |
| 444 | |
| 445 | Refresh(); |
| 446 | } |
| 447 | #endif // __WXMSW__ |
| 448 | } |
| 449 | |
| 450 | void wxPopupMenuWindow::Dismiss() |
| 451 | { |
| 452 | if ( HasOpenSubmenu() ) |
| 453 | { |
| 454 | wxMenuItem *item = GetCurrentItem(); |
| 455 | wxCHECK_RET( item && item->IsSubMenu(), _T("where is our open submenu?") ); |
| 456 | |
| 457 | wxPopupMenuWindow *win = item->GetSubMenu()->m_popupMenu; |
| 458 | wxCHECK_RET( win, _T("opened submenu is not opened?") ); |
| 459 | |
| 460 | win->Dismiss(); |
| 461 | OnSubmenuDismiss(); |
| 462 | } |
| 463 | |
| 464 | wxPopupTransientWindow::Dismiss(); |
| 465 | } |
| 466 | |
| 467 | void wxPopupMenuWindow::OnDismiss() |
| 468 | { |
| 469 | // when we are dismissed because the user clicked elsewhere or we lost |
| 470 | // focus in any other way, hide the parent menu as well |
| 471 | HandleDismiss(TRUE); |
| 472 | } |
| 473 | |
| 474 | void wxPopupMenuWindow::HandleDismiss(bool dismissParent) |
| 475 | { |
| 476 | ResetCurrent(); |
| 477 | |
| 478 | m_menu->OnDismiss(dismissParent); |
| 479 | } |
| 480 | |
| 481 | void wxPopupMenuWindow::DismissAndNotify() |
| 482 | { |
| 483 | Dismiss(); |
| 484 | HandleDismiss(TRUE); |
| 485 | } |
| 486 | |
| 487 | // ---------------------------------------------------------------------------- |
| 488 | // wxPopupMenuWindow geometry |
| 489 | // ---------------------------------------------------------------------------- |
| 490 | |
| 491 | wxMenuItemList::Node * |
| 492 | wxPopupMenuWindow::GetMenuItemFromPoint(const wxPoint& pt) const |
| 493 | { |
| 494 | // we only use the y coord normally, but still check x in case the point is |
| 495 | // outside the window completely |
| 496 | if ( wxWindow::HitTest(pt) == wxHT_WINDOW_INSIDE ) |
| 497 | { |
| 498 | wxCoord y = 0; |
| 499 | for ( wxMenuItemList::Node *node = m_menu->GetMenuItems().GetFirst(); |
| 500 | node; |
| 501 | node = node->GetNext() ) |
| 502 | { |
| 503 | wxMenuItem *item = node->GetData(); |
| 504 | y += item->GetHeight(); |
| 505 | if ( y > pt.y ) |
| 506 | { |
| 507 | // found |
| 508 | return node; |
| 509 | } |
| 510 | } |
| 511 | } |
| 512 | |
| 513 | return NULL; |
| 514 | } |
| 515 | |
| 516 | // ---------------------------------------------------------------------------- |
| 517 | // wxPopupMenuWindow drawing |
| 518 | // ---------------------------------------------------------------------------- |
| 519 | |
| 520 | void wxPopupMenuWindow::RefreshItem(wxMenuItem *item) |
| 521 | { |
| 522 | wxCHECK_RET( item, _T("can't refresh NULL item") ); |
| 523 | |
| 524 | wxASSERT_MSG( IsShown(), _T("can't refresh menu which is not shown") ); |
| 525 | |
| 526 | // FIXME: -1 here because of SetLogicalOrigin(1, 1) in DoDraw() |
| 527 | RefreshRect(wxRect(0, item->GetPosition() - 1, |
| 528 | m_menu->GetGeometryInfo().GetSize().x, item->GetHeight())); |
| 529 | } |
| 530 | |
| 531 | void wxPopupMenuWindow::DoDraw(wxControlRenderer *renderer) |
| 532 | { |
| 533 | // no clipping so far - do we need it? I don't think so as the menu is |
| 534 | // never partially covered as it is always on top of everything |
| 535 | |
| 536 | wxDC& dc = renderer->GetDC(); |
| 537 | dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); |
| 538 | |
| 539 | // FIXME: this should be done in the renderer, however when it is fixed |
| 540 | // wxPopupMenuWindow::RefreshItem() should be changed too! |
| 541 | dc.SetLogicalOrigin(1, 1); |
| 542 | |
| 543 | wxRenderer *rend = renderer->GetRenderer(); |
| 544 | |
| 545 | wxCoord y = 0; |
| 546 | const wxMenuGeometryInfo& gi = m_menu->GetGeometryInfo(); |
| 547 | for ( wxMenuItemList::Node *node = m_menu->GetMenuItems().GetFirst(); |
| 548 | node; |
| 549 | node = node->GetNext() ) |
| 550 | { |
| 551 | wxMenuItem *item = node->GetData(); |
| 552 | |
| 553 | if ( item->IsSeparator() ) |
| 554 | { |
| 555 | rend->DrawMenuSeparator(dc, y, gi); |
| 556 | } |
| 557 | else // not a separator |
| 558 | { |
| 559 | int flags = 0; |
| 560 | if ( item->IsCheckable() ) |
| 561 | { |
| 562 | flags |= wxCONTROL_CHECKABLE; |
| 563 | |
| 564 | if ( item->IsChecked() ) |
| 565 | { |
| 566 | flags |= wxCONTROL_CHECKED; |
| 567 | } |
| 568 | } |
| 569 | |
| 570 | if ( !item->IsEnabled() ) |
| 571 | flags |= wxCONTROL_DISABLED; |
| 572 | |
| 573 | if ( item->IsSubMenu() ) |
| 574 | flags |= wxCONTROL_ISSUBMENU; |
| 575 | |
| 576 | if ( item == GetCurrentItem() ) |
| 577 | flags |= wxCONTROL_SELECTED; |
| 578 | |
| 579 | rend->DrawMenuItem |
| 580 | ( |
| 581 | dc, |
| 582 | y, |
| 583 | gi, |
| 584 | item->GetLabel(), |
| 585 | item->GetAccelString(), |
| 586 | // strangely enough, for unchecked item we use the |
| 587 | // "checked" bitmap because this is the default one - this |
| 588 | // explains this strange boolean expression |
| 589 | item->GetBitmap(!item->IsCheckable() || item->IsChecked()), |
| 590 | flags, |
| 591 | item->GetAccelIndex() |
| 592 | ); |
| 593 | } |
| 594 | |
| 595 | y += item->GetHeight(); |
| 596 | } |
| 597 | } |
| 598 | |
| 599 | // ---------------------------------------------------------------------------- |
| 600 | // wxPopupMenuWindow actions |
| 601 | // ---------------------------------------------------------------------------- |
| 602 | |
| 603 | void wxPopupMenuWindow::ClickItem(wxMenuItem *item) |
| 604 | { |
| 605 | wxCHECK_RET( item, _T("can't click NULL item") ); |
| 606 | |
| 607 | wxASSERT_MSG( !item->IsSeparator() && !item->IsSubMenu(), |
| 608 | _T("can't click this item") ); |
| 609 | |
| 610 | wxMenu* menu = m_menu; |
| 611 | |
| 612 | // close all menus |
| 613 | DismissAndNotify(); |
| 614 | |
| 615 | menu->ClickItem(item); |
| 616 | } |
| 617 | |
| 618 | void wxPopupMenuWindow::OpenSubmenu(wxMenuItem *item, InputMethod how) |
| 619 | { |
| 620 | wxCHECK_RET( item, _T("can't open NULL submenu") ); |
| 621 | |
| 622 | wxMenu *submenu = item->GetSubMenu(); |
| 623 | wxCHECK_RET( submenu, _T("can only open submenus!") ); |
| 624 | |
| 625 | // FIXME: should take into account the border width |
| 626 | submenu->Popup(ClientToScreen(wxPoint(0, item->GetPosition())), |
| 627 | wxSize(m_menu->GetGeometryInfo().GetSize().x, 0), |
| 628 | how == WithKeyboard /* preselect first item then */); |
| 629 | |
| 630 | m_hasOpenSubMenu = TRUE; |
| 631 | } |
| 632 | |
| 633 | bool wxPopupMenuWindow::ActivateItem(wxMenuItem *item, InputMethod how) |
| 634 | { |
| 635 | // don't activate disabled items |
| 636 | if ( !item || !item->IsEnabled() ) |
| 637 | { |
| 638 | return FALSE; |
| 639 | } |
| 640 | |
| 641 | // normal menu items generate commands, submenus can be opened and |
| 642 | // the separators don't do anything |
| 643 | if ( item->IsSubMenu() ) |
| 644 | { |
| 645 | OpenSubmenu(item, how); |
| 646 | } |
| 647 | else if ( !item->IsSeparator() ) |
| 648 | { |
| 649 | ClickItem(item); |
| 650 | } |
| 651 | else // separator, can't activate |
| 652 | { |
| 653 | return FALSE; |
| 654 | } |
| 655 | |
| 656 | return TRUE; |
| 657 | } |
| 658 | |
| 659 | // ---------------------------------------------------------------------------- |
| 660 | // wxPopupMenuWindow input handling |
| 661 | // ---------------------------------------------------------------------------- |
| 662 | |
| 663 | bool wxPopupMenuWindow::ProcessLeftDown(wxMouseEvent& event) |
| 664 | { |
| 665 | // wxPopupWindowHandler dismisses the window when the mouse is clicked |
| 666 | // outside it which is usually just fine, but there is one case when we |
| 667 | // don't want to do it: if the mouse was clicked on the parent submenu item |
| 668 | // which opens this menu, so check for it |
| 669 | |
| 670 | wxPoint pos = event.GetPosition(); |
| 671 | if ( HitTest(pos.x, pos.y) == wxHT_WINDOW_OUTSIDE ) |
| 672 | { |
| 673 | wxMenu *menu = m_menu->GetParent(); |
| 674 | if ( menu ) |
| 675 | { |
| 676 | wxPopupMenuWindow *win = menu->m_popupMenu; |
| 677 | |
| 678 | wxCHECK_MSG( win, FALSE, _T("parent menu not shown?") ); |
| 679 | |
| 680 | pos = ClientToScreen(pos); |
| 681 | if ( win->GetMenuItemFromPoint(win->ScreenToClient(pos)) ) |
| 682 | { |
| 683 | // eat the event |
| 684 | return TRUE; |
| 685 | } |
| 686 | //else: it is outside the parent menu as well, do dismiss this one |
| 687 | } |
| 688 | } |
| 689 | |
| 690 | return FALSE; |
| 691 | } |
| 692 | |
| 693 | void wxPopupMenuWindow::OnLeftUp(wxMouseEvent& event) |
| 694 | { |
| 695 | wxMenuItemList::Node *node = GetMenuItemFromPoint(event.GetPosition()); |
| 696 | if ( node ) |
| 697 | { |
| 698 | ActivateItem(node->GetData(), WithMouse); |
| 699 | } |
| 700 | } |
| 701 | |
| 702 | void wxPopupMenuWindow::OnMouseMove(wxMouseEvent& event) |
| 703 | { |
| 704 | const wxPoint pt = event.GetPosition(); |
| 705 | |
| 706 | // we need to ignore extra mouse events: example when this happens is when |
| 707 | // the mouse is on the menu and we open a submenu from keyboard - Windows |
| 708 | // then sends us a dummy mouse move event, we (correctly) determine that it |
| 709 | // happens in the parent menu and so immediately close the just opened |
| 710 | // submenu! |
| 711 | #ifdef __WXMSW__ |
| 712 | static wxPoint s_ptLast; |
| 713 | wxPoint ptCur = ClientToScreen(pt); |
| 714 | if ( ptCur == s_ptLast ) |
| 715 | { |
| 716 | return; |
| 717 | } |
| 718 | |
| 719 | s_ptLast = ptCur; |
| 720 | #endif // __WXMSW__ |
| 721 | |
| 722 | ProcessMouseMove(pt); |
| 723 | |
| 724 | event.Skip(); |
| 725 | } |
| 726 | |
| 727 | void wxPopupMenuWindow::ProcessMouseMove(const wxPoint& pt) |
| 728 | { |
| 729 | wxMenuItemList::Node *node = GetMenuItemFromPoint(pt); |
| 730 | |
| 731 | // don't reset current to NULL here, we only do it when the mouse leaves |
| 732 | // the window (see below) |
| 733 | if ( node ) |
| 734 | { |
| 735 | if ( node != m_nodeCurrent ) |
| 736 | { |
| 737 | ChangeCurrent(node); |
| 738 | |
| 739 | wxMenuItem *item = GetCurrentItem(); |
| 740 | if ( CanOpen(item) ) |
| 741 | { |
| 742 | OpenSubmenu(item, WithMouse); |
| 743 | } |
| 744 | } |
| 745 | //else: same item, nothing to do |
| 746 | } |
| 747 | else // not on an item |
| 748 | { |
| 749 | // the last open submenu forwards the mouse move messages to its |
| 750 | // parent, so if the mouse moves to another item of the parent menu, |
| 751 | // this menu is closed and this other item is selected - in the similar |
| 752 | // manner, the top menu forwards the mouse moves to the menubar which |
| 753 | // allows to select another top level menu by just moving the mouse |
| 754 | |
| 755 | // we need to translate our client coords to the client coords of the |
| 756 | // window we forward this event to |
| 757 | wxPoint ptScreen = ClientToScreen(pt); |
| 758 | |
| 759 | // if the mouse is outside this menu, let the parent one to |
| 760 | // process it |
| 761 | wxMenu *menuParent = m_menu->GetParent(); |
| 762 | if ( menuParent ) |
| 763 | { |
| 764 | wxPopupMenuWindow *win = menuParent->m_popupMenu; |
| 765 | |
| 766 | // if we're shown, the parent menu must be also shown |
| 767 | wxCHECK_RET( win, _T("parent menu is not shown?") ); |
| 768 | |
| 769 | win->ProcessMouseMove(win->ScreenToClient(ptScreen)); |
| 770 | } |
| 771 | else // no parent menu |
| 772 | { |
| 773 | wxMenuBar *menubar = m_menu->GetMenuBar(); |
| 774 | if ( menubar ) |
| 775 | { |
| 776 | if ( menubar->ProcessMouseEvent( |
| 777 | menubar->ScreenToClient(ptScreen)) ) |
| 778 | { |
| 779 | // menubar has closed this menu and opened another one, probably |
| 780 | return; |
| 781 | } |
| 782 | } |
| 783 | } |
| 784 | //else: top level popup menu, no other processing to do |
| 785 | } |
| 786 | } |
| 787 | |
| 788 | void wxPopupMenuWindow::OnMouseLeave(wxMouseEvent& event) |
| 789 | { |
| 790 | // due to the artefact of mouse events generation under MSW, we actually |
| 791 | // may get the mouse leave event after the menu had been already dismissed |
| 792 | // and calling ChangeCurrent() would then assert, so don't do it |
| 793 | if ( IsShown() ) |
| 794 | { |
| 795 | // we shouldn't change the current them if our submenu is opened and |
| 796 | // mouse moved there, in this case the submenu is responsable for |
| 797 | // handling it |
| 798 | bool resetCurrent; |
| 799 | if ( HasOpenSubmenu() ) |
| 800 | { |
| 801 | wxMenuItem *item = GetCurrentItem(); |
| 802 | wxCHECK_RET( CanOpen(item), _T("where is our open submenu?") ); |
| 803 | |
| 804 | wxPopupMenuWindow *win = item->GetSubMenu()->m_popupMenu; |
| 805 | wxCHECK_RET( win, _T("submenu is opened but not shown?") ); |
| 806 | |
| 807 | // only handle this event if the mouse is not inside the submenu |
| 808 | wxPoint pt = ClientToScreen(event.GetPosition()); |
| 809 | resetCurrent = |
| 810 | win->HitTest(win->ScreenToClient(pt)) == wxHT_WINDOW_OUTSIDE; |
| 811 | } |
| 812 | else |
| 813 | { |
| 814 | // this menu is the last opened |
| 815 | resetCurrent = TRUE; |
| 816 | } |
| 817 | |
| 818 | if ( resetCurrent ) |
| 819 | { |
| 820 | ChangeCurrent(NULL); |
| 821 | } |
| 822 | } |
| 823 | |
| 824 | event.Skip(); |
| 825 | } |
| 826 | |
| 827 | void wxPopupMenuWindow::OnKeyDown(wxKeyEvent& event) |
| 828 | { |
| 829 | if ( !ProcessKeyDown(event.GetKeyCode()) ) |
| 830 | { |
| 831 | event.Skip(); |
| 832 | } |
| 833 | } |
| 834 | |
| 835 | bool wxPopupMenuWindow::ProcessKeyDown(int key) |
| 836 | { |
| 837 | wxMenuItem *item = GetCurrentItem(); |
| 838 | |
| 839 | // first let the opened submenu to have it (no test for IsEnabled() here, |
| 840 | // the keys navigate even in a disabled submenu if we had somehow managed |
| 841 | // to open it inspit of this) |
| 842 | if ( HasOpenSubmenu() ) |
| 843 | { |
| 844 | wxCHECK_MSG( CanOpen(item), FALSE, |
| 845 | _T("has open submenu but another item selected?") ); |
| 846 | |
| 847 | if ( item->GetSubMenu()->ProcessKeyDown(key) ) |
| 848 | return TRUE; |
| 849 | } |
| 850 | |
| 851 | bool processed = TRUE; |
| 852 | |
| 853 | // handle the up/down arrows, home, end, esc and return here, pass the |
| 854 | // left/right arrows to the menu bar except when the right arrow can be |
| 855 | // used to open a submenu |
| 856 | switch ( key ) |
| 857 | { |
| 858 | case WXK_LEFT: |
| 859 | // if we're not a top level menu, close us, else leave this to the |
| 860 | // menubar |
| 861 | if ( !m_menu->GetParent() ) |
| 862 | { |
| 863 | processed = FALSE; |
| 864 | break; |
| 865 | } |
| 866 | |
| 867 | // fall through |
| 868 | |
| 869 | case WXK_ESCAPE: |
| 870 | // close just this menu |
| 871 | Dismiss(); |
| 872 | HandleDismiss(FALSE); |
| 873 | break; |
| 874 | |
| 875 | case WXK_RETURN: |
| 876 | processed = ActivateItem(item); |
| 877 | break; |
| 878 | |
| 879 | case WXK_HOME: |
| 880 | ChangeCurrent(m_menu->GetMenuItems().GetFirst()); |
| 881 | break; |
| 882 | |
| 883 | case WXK_END: |
| 884 | ChangeCurrent(m_menu->GetMenuItems().GetLast()); |
| 885 | break; |
| 886 | |
| 887 | case WXK_UP: |
| 888 | case WXK_DOWN: |
| 889 | { |
| 890 | bool up = key == WXK_UP; |
| 891 | |
| 892 | wxMenuItemList::Node *nodeStart = up ? GetPrevNode() |
| 893 | : GetNextNode(), |
| 894 | *node = nodeStart; |
| 895 | while ( node && node->GetData()->IsSeparator() ) |
| 896 | { |
| 897 | node = up ? GetPrevNode(node) : GetNextNode(node); |
| 898 | |
| 899 | if ( node == nodeStart ) |
| 900 | { |
| 901 | // nothing but separators and disabled items in this |
| 902 | // menu, break out |
| 903 | node = NULL; |
| 904 | } |
| 905 | } |
| 906 | |
| 907 | if ( node ) |
| 908 | { |
| 909 | ChangeCurrent(node); |
| 910 | } |
| 911 | else |
| 912 | { |
| 913 | processed = FALSE; |
| 914 | } |
| 915 | } |
| 916 | break; |
| 917 | |
| 918 | case WXK_RIGHT: |
| 919 | // don't try to reopen an already opened menu |
| 920 | if ( !HasOpenSubmenu() && CanOpen(item) ) |
| 921 | { |
| 922 | OpenSubmenu(item); |
| 923 | } |
| 924 | else |
| 925 | { |
| 926 | processed = FALSE; |
| 927 | } |
| 928 | break; |
| 929 | |
| 930 | default: |
| 931 | // look for the menu item starting with this letter |
| 932 | if ( wxIsalnum(key) ) |
| 933 | { |
| 934 | // we want to start from the item after this one because |
| 935 | // if we're already on the item with the given accel we want to |
| 936 | // go to the next one, not to stay in place |
| 937 | wxMenuItemList::Node *nodeStart = GetNextNode(); |
| 938 | |
| 939 | // do we have more than one item with this accel? |
| 940 | bool notUnique = FALSE; |
| 941 | |
| 942 | // translate everything to lower case before comparing |
| 943 | wxChar chAccel = wxTolower(key); |
| 944 | |
| 945 | // loop through all items searching for the item with this |
| 946 | // accel |
| 947 | wxMenuItemList::Node *node = nodeStart, |
| 948 | *nodeFound = NULL; |
| 949 | for ( ;; ) |
| 950 | { |
| 951 | item = node->GetData(); |
| 952 | |
| 953 | int idxAccel = item->GetAccelIndex(); |
| 954 | if ( idxAccel != -1 && |
| 955 | wxTolower(item->GetLabel()[(size_t)idxAccel]) |
| 956 | == chAccel ) |
| 957 | { |
| 958 | // ok, found an item with this accel |
| 959 | if ( !nodeFound ) |
| 960 | { |
| 961 | // store it but continue searching as we need to |
| 962 | // know if it's the only item with this accel or if |
| 963 | // there are more |
| 964 | nodeFound = node; |
| 965 | } |
| 966 | else // we already had found such item |
| 967 | { |
| 968 | notUnique = TRUE; |
| 969 | |
| 970 | // no need to continue further, we won't find |
| 971 | // anything we don't already know |
| 972 | break; |
| 973 | } |
| 974 | } |
| 975 | |
| 976 | // we want to iterate over all items wrapping around if |
| 977 | // necessary |
| 978 | node = GetNextNode(node); |
| 979 | if ( node == nodeStart ) |
| 980 | { |
| 981 | // we've seen all nodes |
| 982 | break; |
| 983 | } |
| 984 | } |
| 985 | |
| 986 | if ( nodeFound ) |
| 987 | { |
| 988 | item = nodeFound->GetData(); |
| 989 | |
| 990 | // go to this item anyhow |
| 991 | ChangeCurrent(nodeFound); |
| 992 | |
| 993 | if ( !notUnique && item->IsEnabled() ) |
| 994 | { |
| 995 | // unique item with this accel - activate it |
| 996 | processed = ActivateItem(item); |
| 997 | } |
| 998 | //else: just select it but don't activate as the user might |
| 999 | // have wanted to activate another item |
| 1000 | |
| 1001 | // skip "processed = FALSE" below |
| 1002 | break; |
| 1003 | } |
| 1004 | } |
| 1005 | |
| 1006 | processed = FALSE; |
| 1007 | } |
| 1008 | |
| 1009 | return processed; |
| 1010 | } |
| 1011 | |
| 1012 | // ---------------------------------------------------------------------------- |
| 1013 | // wxMenu |
| 1014 | // ---------------------------------------------------------------------------- |
| 1015 | |
| 1016 | void wxMenu::Init() |
| 1017 | { |
| 1018 | m_geometry = NULL; |
| 1019 | |
| 1020 | m_popupMenu = NULL; |
| 1021 | } |
| 1022 | |
| 1023 | wxMenu::~wxMenu() |
| 1024 | { |
| 1025 | delete m_geometry; |
| 1026 | delete m_popupMenu; |
| 1027 | } |
| 1028 | |
| 1029 | // ---------------------------------------------------------------------------- |
| 1030 | // wxMenu and wxMenuGeometryInfo |
| 1031 | // ---------------------------------------------------------------------------- |
| 1032 | |
| 1033 | wxMenuGeometryInfo::~wxMenuGeometryInfo() |
| 1034 | { |
| 1035 | } |
| 1036 | |
| 1037 | const wxMenuGeometryInfo& wxMenu::GetGeometryInfo() const |
| 1038 | { |
| 1039 | if ( !m_geometry ) |
| 1040 | { |
| 1041 | if ( m_popupMenu ) |
| 1042 | { |
| 1043 | wxConstCast(this, wxMenu)->m_geometry = |
| 1044 | m_popupMenu->GetRenderer()->GetMenuGeometry(m_popupMenu, *this); |
| 1045 | } |
| 1046 | else |
| 1047 | { |
| 1048 | wxFAIL_MSG( _T("can't get geometry without window") ); |
| 1049 | } |
| 1050 | } |
| 1051 | |
| 1052 | return *m_geometry; |
| 1053 | } |
| 1054 | |
| 1055 | void wxMenu::InvalidateGeometryInfo() |
| 1056 | { |
| 1057 | if ( m_geometry ) |
| 1058 | { |
| 1059 | delete m_geometry; |
| 1060 | m_geometry = NULL; |
| 1061 | } |
| 1062 | } |
| 1063 | |
| 1064 | // ---------------------------------------------------------------------------- |
| 1065 | // wxMenu adding/removing items |
| 1066 | // ---------------------------------------------------------------------------- |
| 1067 | |
| 1068 | void wxMenu::OnItemAdded(wxMenuItem *item) |
| 1069 | { |
| 1070 | InvalidateGeometryInfo(); |
| 1071 | |
| 1072 | #if wxUSE_ACCEL |
| 1073 | AddAccelFor(item); |
| 1074 | #endif // wxUSE_ACCEL |
| 1075 | |
| 1076 | // the submenus of a popup menu should have the same invoking window as it |
| 1077 | // has |
| 1078 | if ( m_invokingWindow && item->IsSubMenu() ) |
| 1079 | { |
| 1080 | item->GetSubMenu()->SetInvokingWindow(m_invokingWindow); |
| 1081 | } |
| 1082 | } |
| 1083 | |
| 1084 | bool wxMenu::DoAppend(wxMenuItem *item) |
| 1085 | { |
| 1086 | if ( !wxMenuBase::DoAppend(item) ) |
| 1087 | return FALSE; |
| 1088 | |
| 1089 | OnItemAdded(item); |
| 1090 | |
| 1091 | return TRUE; |
| 1092 | } |
| 1093 | |
| 1094 | bool wxMenu::DoInsert(size_t pos, wxMenuItem *item) |
| 1095 | { |
| 1096 | if ( !wxMenuBase::DoInsert(pos, item) ) |
| 1097 | return FALSE; |
| 1098 | |
| 1099 | OnItemAdded(item); |
| 1100 | |
| 1101 | return TRUE; |
| 1102 | } |
| 1103 | |
| 1104 | wxMenuItem *wxMenu::DoRemove(wxMenuItem *item) |
| 1105 | { |
| 1106 | wxMenuItem *itemOld = wxMenuBase::DoRemove(item); |
| 1107 | |
| 1108 | if ( itemOld ) |
| 1109 | { |
| 1110 | InvalidateGeometryInfo(); |
| 1111 | |
| 1112 | #if wxUSE_ACCEL |
| 1113 | RemoveAccelFor(item); |
| 1114 | #endif // wxUSE_ACCEL |
| 1115 | } |
| 1116 | |
| 1117 | return itemOld; |
| 1118 | } |
| 1119 | |
| 1120 | // ---------------------------------------------------------------------------- |
| 1121 | // wxMenu attaching/detaching |
| 1122 | // ---------------------------------------------------------------------------- |
| 1123 | |
| 1124 | void wxMenu::Attach(wxMenuBarBase *menubar) |
| 1125 | { |
| 1126 | wxMenuBase::Attach(menubar); |
| 1127 | |
| 1128 | wxCHECK_RET( m_menuBar, _T("menubar can't be NULL after attaching") ); |
| 1129 | |
| 1130 | // unfortunately, we can't use m_menuBar->GetEventHandler() here because, |
| 1131 | // if the menubar is currently showing a menu, its event handler is a |
| 1132 | // temporary one installed by wxPopupWindow and so will disappear soon any |
| 1133 | // any attempts to use it from the newly attached menu would result in a |
| 1134 | // crash |
| 1135 | // |
| 1136 | // so we use the menubar itself, even if it's a pity as it means we can't |
| 1137 | // redirect all menu events by changing the menubar handler (FIXME) |
| 1138 | SetNextHandler(m_menuBar); |
| 1139 | } |
| 1140 | |
| 1141 | void wxMenu::Detach() |
| 1142 | { |
| 1143 | wxMenuBase::Detach(); |
| 1144 | } |
| 1145 | |
| 1146 | // ---------------------------------------------------------------------------- |
| 1147 | // wxMenu misc functions |
| 1148 | // ---------------------------------------------------------------------------- |
| 1149 | |
| 1150 | wxWindow *wxMenu::GetRootWindow() const |
| 1151 | { |
| 1152 | if ( m_menuBar ) |
| 1153 | { |
| 1154 | // simple case - a normal menu attached to the menubar |
| 1155 | return m_menuBar; |
| 1156 | } |
| 1157 | |
| 1158 | // we're a popup menu but the trouble is that only the top level popup menu |
| 1159 | // has a pointer to the invoking window, so we must walk up the menu chain |
| 1160 | // if needed |
| 1161 | wxWindow *win = GetInvokingWindow(); |
| 1162 | if ( win ) |
| 1163 | { |
| 1164 | // we already have it |
| 1165 | return win; |
| 1166 | } |
| 1167 | |
| 1168 | wxMenu *menu = GetParent(); |
| 1169 | while ( menu ) |
| 1170 | { |
| 1171 | // We are a submenu of a menu of a menubar |
| 1172 | if (menu->GetMenuBar()) |
| 1173 | return menu->GetMenuBar(); |
| 1174 | |
| 1175 | win = menu->GetInvokingWindow(); |
| 1176 | if ( win ) |
| 1177 | break; |
| 1178 | |
| 1179 | menu = menu->GetParent(); |
| 1180 | } |
| 1181 | |
| 1182 | // we're probably going to crash in the caller anyhow, but try to detect |
| 1183 | // this error as soon as possible |
| 1184 | wxASSERT_MSG( win, _T("menu without any associated window?") ); |
| 1185 | |
| 1186 | // also remember it in this menu so that we don't have to search for it the |
| 1187 | // next time |
| 1188 | wxConstCast(this, wxMenu)->m_invokingWindow = win; |
| 1189 | |
| 1190 | return win; |
| 1191 | } |
| 1192 | |
| 1193 | wxRenderer *wxMenu::GetRenderer() const |
| 1194 | { |
| 1195 | // we're going to crash without renderer! |
| 1196 | wxCHECK_MSG( m_popupMenu, NULL, _T("neither popup nor menubar menu?") ); |
| 1197 | |
| 1198 | return m_popupMenu->GetRenderer(); |
| 1199 | } |
| 1200 | |
| 1201 | void wxMenu::RefreshItem(wxMenuItem *item) |
| 1202 | { |
| 1203 | // the item geometry changed, so our might have changed as well |
| 1204 | InvalidateGeometryInfo(); |
| 1205 | |
| 1206 | if ( IsShown() ) |
| 1207 | { |
| 1208 | // this would be a bug in IsShown() |
| 1209 | wxCHECK_RET( m_popupMenu, _T("must have popup window if shown!") ); |
| 1210 | |
| 1211 | // recalc geometry to update the item height and such |
| 1212 | (void)GetGeometryInfo(); |
| 1213 | |
| 1214 | m_popupMenu->RefreshItem(item); |
| 1215 | } |
| 1216 | } |
| 1217 | |
| 1218 | // ---------------------------------------------------------------------------- |
| 1219 | // wxMenu showing and hiding |
| 1220 | // ---------------------------------------------------------------------------- |
| 1221 | |
| 1222 | bool wxMenu::IsShown() const |
| 1223 | { |
| 1224 | return m_popupMenu && m_popupMenu->IsShown(); |
| 1225 | } |
| 1226 | |
| 1227 | void wxMenu::OnDismiss(bool dismissParent) |
| 1228 | { |
| 1229 | if ( m_menuParent ) |
| 1230 | { |
| 1231 | // always notify the parent about submenu disappearance |
| 1232 | wxPopupMenuWindow *win = m_menuParent->m_popupMenu; |
| 1233 | if ( win ) |
| 1234 | { |
| 1235 | win->OnSubmenuDismiss(); |
| 1236 | } |
| 1237 | else |
| 1238 | { |
| 1239 | wxFAIL_MSG( _T("parent menu not shown?") ); |
| 1240 | } |
| 1241 | |
| 1242 | // and if we dismiss everything, propagate to parent |
| 1243 | if ( dismissParent ) |
| 1244 | { |
| 1245 | // dismissParent is recursive |
| 1246 | m_menuParent->Dismiss(); |
| 1247 | m_menuParent->OnDismiss(TRUE); |
| 1248 | } |
| 1249 | } |
| 1250 | else // no parent menu |
| 1251 | { |
| 1252 | // notify the menu bar if we're a top level menu |
| 1253 | if ( m_menuBar ) |
| 1254 | { |
| 1255 | m_menuBar->OnDismissMenu(dismissParent); |
| 1256 | } |
| 1257 | else // popup menu |
| 1258 | { |
| 1259 | wxCHECK_RET( m_invokingWindow, _T("what kind of menu is this?") ); |
| 1260 | |
| 1261 | m_invokingWindow->DismissPopupMenu(); |
| 1262 | |
| 1263 | // Why reset it here? We need it for sending the event to... |
| 1264 | // SetInvokingWindow(NULL); |
| 1265 | } |
| 1266 | } |
| 1267 | } |
| 1268 | |
| 1269 | void wxMenu::Popup(const wxPoint& pos, const wxSize& size, bool selectFirst) |
| 1270 | { |
| 1271 | // create the popup window if not done yet |
| 1272 | if ( !m_popupMenu ) |
| 1273 | { |
| 1274 | m_popupMenu = new wxPopupMenuWindow(GetRootWindow(), this); |
| 1275 | } |
| 1276 | |
| 1277 | // select the first item unless disabled |
| 1278 | if ( selectFirst ) |
| 1279 | { |
| 1280 | m_popupMenu->SelectFirst(); |
| 1281 | } |
| 1282 | |
| 1283 | // the geometry might have changed since the last time we were shown, so |
| 1284 | // always resize |
| 1285 | m_popupMenu->SetClientSize(GetGeometryInfo().GetSize()); |
| 1286 | |
| 1287 | // position it as specified |
| 1288 | m_popupMenu->Position(pos, size); |
| 1289 | |
| 1290 | // the menu can't have the focus itself (it is a Windows limitation), so |
| 1291 | // always keep the focus at the originating window |
| 1292 | wxWindow *focus = GetRootWindow(); |
| 1293 | |
| 1294 | wxASSERT_MSG( focus, _T("no window to keep focus on?") ); |
| 1295 | |
| 1296 | // and show it |
| 1297 | m_popupMenu->Popup(focus); |
| 1298 | } |
| 1299 | |
| 1300 | void wxMenu::Dismiss() |
| 1301 | { |
| 1302 | wxCHECK_RET( IsShown(), _T("can't dismiss hidden menu") ); |
| 1303 | |
| 1304 | m_popupMenu->Dismiss(); |
| 1305 | } |
| 1306 | |
| 1307 | // ---------------------------------------------------------------------------- |
| 1308 | // wxMenu event processing |
| 1309 | // ---------------------------------------------------------------------------- |
| 1310 | |
| 1311 | bool wxMenu::ProcessKeyDown(int key) |
| 1312 | { |
| 1313 | wxCHECK_MSG( m_popupMenu, FALSE, |
| 1314 | _T("can't process key events if not shown") ); |
| 1315 | |
| 1316 | return m_popupMenu->ProcessKeyDown(key); |
| 1317 | } |
| 1318 | |
| 1319 | bool wxMenu::ClickItem(wxMenuItem *item) |
| 1320 | { |
| 1321 | int isChecked; |
| 1322 | if ( item->IsCheckable() ) |
| 1323 | { |
| 1324 | // update the item state |
| 1325 | isChecked = !item->IsChecked(); |
| 1326 | |
| 1327 | item->Check(isChecked != 0); |
| 1328 | } |
| 1329 | else |
| 1330 | { |
| 1331 | // not applicabled |
| 1332 | isChecked = -1; |
| 1333 | } |
| 1334 | |
| 1335 | return SendEvent(item->GetId(), isChecked); |
| 1336 | } |
| 1337 | |
| 1338 | // ---------------------------------------------------------------------------- |
| 1339 | // wxMenu accel support |
| 1340 | // ---------------------------------------------------------------------------- |
| 1341 | |
| 1342 | #if wxUSE_ACCEL |
| 1343 | |
| 1344 | bool wxMenu::ProcessAccelEvent(const wxKeyEvent& event) |
| 1345 | { |
| 1346 | // do we have an item for this accel? |
| 1347 | wxMenuItem *item = m_accelTable.GetMenuItem(event); |
| 1348 | if ( item && item->IsEnabled() ) |
| 1349 | { |
| 1350 | return ClickItem(item); |
| 1351 | } |
| 1352 | |
| 1353 | // try our submenus |
| 1354 | for ( wxMenuItemList::Node *node = GetMenuItems().GetFirst(); |
| 1355 | node; |
| 1356 | node = node->GetNext() ) |
| 1357 | { |
| 1358 | const wxMenuItem *item = node->GetData(); |
| 1359 | if ( item->IsSubMenu() && item->IsEnabled() ) |
| 1360 | { |
| 1361 | // try its elements |
| 1362 | if ( item->GetSubMenu()->ProcessAccelEvent(event) ) |
| 1363 | { |
| 1364 | return TRUE; |
| 1365 | } |
| 1366 | } |
| 1367 | } |
| 1368 | |
| 1369 | return FALSE; |
| 1370 | } |
| 1371 | |
| 1372 | void wxMenu::AddAccelFor(wxMenuItem *item) |
| 1373 | { |
| 1374 | wxAcceleratorEntry *accel = item->GetAccel(); |
| 1375 | if ( accel ) |
| 1376 | { |
| 1377 | accel->SetMenuItem(item); |
| 1378 | |
| 1379 | m_accelTable.Add(*accel); |
| 1380 | |
| 1381 | delete accel; |
| 1382 | } |
| 1383 | } |
| 1384 | |
| 1385 | void wxMenu::RemoveAccelFor(wxMenuItem *item) |
| 1386 | { |
| 1387 | wxAcceleratorEntry *accel = item->GetAccel(); |
| 1388 | if ( accel ) |
| 1389 | { |
| 1390 | m_accelTable.Remove(*accel); |
| 1391 | |
| 1392 | delete accel; |
| 1393 | } |
| 1394 | } |
| 1395 | |
| 1396 | #endif // wxUSE_ACCEL |
| 1397 | |
| 1398 | // ---------------------------------------------------------------------------- |
| 1399 | // wxMenuItem construction |
| 1400 | // ---------------------------------------------------------------------------- |
| 1401 | |
| 1402 | wxMenuItem::wxMenuItem(wxMenu *parentMenu, |
| 1403 | int id, |
| 1404 | const wxString& text, |
| 1405 | const wxString& help, |
| 1406 | wxItemKind kind, |
| 1407 | wxMenu *subMenu) |
| 1408 | : wxMenuItemBase(parentMenu, id, text, help, kind, subMenu) |
| 1409 | { |
| 1410 | m_posY = |
| 1411 | m_height = -1; |
| 1412 | |
| 1413 | UpdateAccelInfo(); |
| 1414 | } |
| 1415 | |
| 1416 | wxMenuItem::~wxMenuItem() |
| 1417 | { |
| 1418 | } |
| 1419 | |
| 1420 | // ---------------------------------------------------------------------------- |
| 1421 | // wxMenuItemBase methods implemented here |
| 1422 | // ---------------------------------------------------------------------------- |
| 1423 | |
| 1424 | /* static */ |
| 1425 | wxMenuItem *wxMenuItemBase::New(wxMenu *parentMenu, |
| 1426 | int id, |
| 1427 | const wxString& name, |
| 1428 | const wxString& help, |
| 1429 | wxItemKind kind, |
| 1430 | wxMenu *subMenu) |
| 1431 | { |
| 1432 | return new wxMenuItem(parentMenu, id, name, help, kind, subMenu); |
| 1433 | } |
| 1434 | |
| 1435 | /* static */ |
| 1436 | wxString wxMenuItemBase::GetLabelFromText(const wxString& text) |
| 1437 | { |
| 1438 | return wxStripMenuCodes(text); |
| 1439 | } |
| 1440 | |
| 1441 | // ---------------------------------------------------------------------------- |
| 1442 | // wxMenuItem operations |
| 1443 | // ---------------------------------------------------------------------------- |
| 1444 | |
| 1445 | void wxMenuItem::NotifyMenu() |
| 1446 | { |
| 1447 | m_parentMenu->RefreshItem(this); |
| 1448 | } |
| 1449 | |
| 1450 | void wxMenuItem::UpdateAccelInfo() |
| 1451 | { |
| 1452 | m_indexAccel = wxControl::FindAccelIndex(m_text); |
| 1453 | |
| 1454 | // will be empty if the text contains no TABs - ok |
| 1455 | m_strAccel = m_text.AfterFirst(_T('\t')); |
| 1456 | } |
| 1457 | |
| 1458 | void wxMenuItem::SetText(const wxString& text) |
| 1459 | { |
| 1460 | if ( text != m_text ) |
| 1461 | { |
| 1462 | // first call the base class version to change m_text |
| 1463 | wxMenuItemBase::SetText(text); |
| 1464 | |
| 1465 | UpdateAccelInfo(); |
| 1466 | |
| 1467 | NotifyMenu(); |
| 1468 | } |
| 1469 | } |
| 1470 | |
| 1471 | void wxMenuItem::SetCheckable(bool checkable) |
| 1472 | { |
| 1473 | if ( checkable != IsCheckable() ) |
| 1474 | { |
| 1475 | wxMenuItemBase::SetCheckable(checkable); |
| 1476 | |
| 1477 | NotifyMenu(); |
| 1478 | } |
| 1479 | } |
| 1480 | |
| 1481 | void wxMenuItem::SetBitmaps(const wxBitmap& bmpChecked, |
| 1482 | const wxBitmap& bmpUnchecked) |
| 1483 | { |
| 1484 | m_bmpChecked = bmpChecked; |
| 1485 | m_bmpUnchecked = bmpUnchecked; |
| 1486 | |
| 1487 | NotifyMenu(); |
| 1488 | } |
| 1489 | |
| 1490 | void wxMenuItem::Enable(bool enable) |
| 1491 | { |
| 1492 | if ( enable != m_isEnabled ) |
| 1493 | { |
| 1494 | wxMenuItemBase::Enable(enable); |
| 1495 | |
| 1496 | NotifyMenu(); |
| 1497 | } |
| 1498 | } |
| 1499 | |
| 1500 | void wxMenuItem::Check(bool check) |
| 1501 | { |
| 1502 | if ( check != m_isChecked ) |
| 1503 | { |
| 1504 | wxMenuItemBase::Check(check); |
| 1505 | |
| 1506 | NotifyMenu(); |
| 1507 | } |
| 1508 | } |
| 1509 | |
| 1510 | // ---------------------------------------------------------------------------- |
| 1511 | // wxMenuBar creation |
| 1512 | // ---------------------------------------------------------------------------- |
| 1513 | |
| 1514 | void wxMenuBar::Init() |
| 1515 | { |
| 1516 | m_frameLast = NULL; |
| 1517 | |
| 1518 | m_current = -1; |
| 1519 | |
| 1520 | m_menuShown = NULL; |
| 1521 | |
| 1522 | m_shouldShowMenu = FALSE; |
| 1523 | |
| 1524 | m_windowStyle |= wxNO_FULL_REPAINT_ON_RESIZE; |
| 1525 | } |
| 1526 | |
| 1527 | void wxMenuBar::Attach(wxFrame *frame) |
| 1528 | { |
| 1529 | // maybe you really wanted to call Detach()? |
| 1530 | wxCHECK_RET( frame, _T("wxMenuBar::Attach(NULL) called") ); |
| 1531 | |
| 1532 | wxMenuBarBase::Attach(frame); |
| 1533 | |
| 1534 | if ( IsCreated() ) |
| 1535 | { |
| 1536 | // reparent if necessary |
| 1537 | if ( m_frameLast != frame ) |
| 1538 | { |
| 1539 | Reparent(frame); |
| 1540 | } |
| 1541 | |
| 1542 | // show it back - was hidden by Detach() |
| 1543 | Show(); |
| 1544 | } |
| 1545 | else // not created yet, do it now |
| 1546 | { |
| 1547 | // we have no way to return the error from here anyhow :-( |
| 1548 | (void)Create(frame, -1); |
| 1549 | |
| 1550 | SetCursor(wxCURSOR_ARROW); |
| 1551 | |
| 1552 | SetFont(wxSystemSettings::GetFont(wxSYS_SYSTEM_FONT)); |
| 1553 | |
| 1554 | // calculate and set our height (it won't be changed any more) |
| 1555 | SetSize(-1, GetBestSize().y); |
| 1556 | } |
| 1557 | |
| 1558 | // remember the last frame which had us to avoid unnecessarily reparenting |
| 1559 | // above |
| 1560 | m_frameLast = frame; |
| 1561 | } |
| 1562 | |
| 1563 | void wxMenuBar::Detach() |
| 1564 | { |
| 1565 | // don't delete the window because we may be reattached later, just hide it |
| 1566 | if ( m_frameLast ) |
| 1567 | { |
| 1568 | Hide(); |
| 1569 | } |
| 1570 | |
| 1571 | wxMenuBarBase::Detach(); |
| 1572 | } |
| 1573 | |
| 1574 | wxMenuBar::~wxMenuBar() |
| 1575 | { |
| 1576 | } |
| 1577 | |
| 1578 | // ---------------------------------------------------------------------------- |
| 1579 | // wxMenuBar adding/removing items |
| 1580 | // ---------------------------------------------------------------------------- |
| 1581 | |
| 1582 | bool wxMenuBar::Append(wxMenu *menu, const wxString& title) |
| 1583 | { |
| 1584 | return Insert(GetCount(), menu, title); |
| 1585 | } |
| 1586 | |
| 1587 | bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title) |
| 1588 | { |
| 1589 | if ( !wxMenuBarBase::Insert(pos, menu, title) ) |
| 1590 | return FALSE; |
| 1591 | |
| 1592 | wxMenuInfo *info = new wxMenuInfo(title); |
| 1593 | m_menuInfos.Insert(info, pos); |
| 1594 | |
| 1595 | RefreshAllItemsAfter(pos); |
| 1596 | |
| 1597 | return TRUE; |
| 1598 | } |
| 1599 | |
| 1600 | wxMenu *wxMenuBar::Replace(size_t pos, wxMenu *menu, const wxString& title) |
| 1601 | { |
| 1602 | wxMenu *menuOld = wxMenuBarBase::Replace(pos, menu, title); |
| 1603 | |
| 1604 | if ( menuOld ) |
| 1605 | { |
| 1606 | wxMenuInfo& info = m_menuInfos[pos]; |
| 1607 | |
| 1608 | info.SetLabel(title); |
| 1609 | |
| 1610 | // even if the old menu was disabled, the new one is not any more |
| 1611 | info.SetEnabled(); |
| 1612 | |
| 1613 | // even if we change only this one, the new label has different width, |
| 1614 | // so we need to refresh everything beyond this item as well |
| 1615 | RefreshAllItemsAfter(pos); |
| 1616 | } |
| 1617 | |
| 1618 | return menuOld; |
| 1619 | } |
| 1620 | |
| 1621 | wxMenu *wxMenuBar::Remove(size_t pos) |
| 1622 | { |
| 1623 | wxMenu *menuOld = wxMenuBarBase::Remove(pos); |
| 1624 | |
| 1625 | if ( menuOld ) |
| 1626 | { |
| 1627 | m_menuInfos.RemoveAt(pos); |
| 1628 | |
| 1629 | // this doesn't happen too often, so don't try to be too smart - just |
| 1630 | // refresh everything |
| 1631 | Refresh(); |
| 1632 | } |
| 1633 | |
| 1634 | return menuOld; |
| 1635 | } |
| 1636 | |
| 1637 | // ---------------------------------------------------------------------------- |
| 1638 | // wxMenuBar top level menus access |
| 1639 | // ---------------------------------------------------------------------------- |
| 1640 | |
| 1641 | wxCoord wxMenuBar::GetItemWidth(size_t pos) const |
| 1642 | { |
| 1643 | return m_menuInfos[pos].GetWidth(wxConstCast(this, wxMenuBar)); |
| 1644 | } |
| 1645 | |
| 1646 | void wxMenuBar::EnableTop(size_t pos, bool enable) |
| 1647 | { |
| 1648 | wxCHECK_RET( pos < GetCount(), _T("invalid index in EnableTop") ); |
| 1649 | |
| 1650 | if ( enable != m_menuInfos[pos].IsEnabled() ) |
| 1651 | { |
| 1652 | m_menuInfos[pos].SetEnabled(enable); |
| 1653 | |
| 1654 | RefreshItem(pos); |
| 1655 | } |
| 1656 | //else: nothing to do |
| 1657 | } |
| 1658 | |
| 1659 | bool wxMenuBar::IsEnabledTop(size_t pos) const |
| 1660 | { |
| 1661 | wxCHECK_MSG( pos < GetCount(), FALSE, _T("invalid index in IsEnabledTop") ); |
| 1662 | |
| 1663 | return m_menuInfos[pos].IsEnabled(); |
| 1664 | } |
| 1665 | |
| 1666 | void wxMenuBar::SetLabelTop(size_t pos, const wxString& label) |
| 1667 | { |
| 1668 | wxCHECK_RET( pos < GetCount(), _T("invalid index in EnableTop") ); |
| 1669 | |
| 1670 | if ( label != m_menuInfos[pos].GetLabel() ) |
| 1671 | { |
| 1672 | m_menuInfos[pos].SetLabel(label); |
| 1673 | |
| 1674 | RefreshItem(pos); |
| 1675 | } |
| 1676 | //else: nothing to do |
| 1677 | } |
| 1678 | |
| 1679 | wxString wxMenuBar::GetLabelTop(size_t pos) const |
| 1680 | { |
| 1681 | wxCHECK_MSG( pos < GetCount(), _T(""), _T("invalid index in GetLabelTop") ); |
| 1682 | |
| 1683 | return m_menuInfos[pos].GetLabel(); |
| 1684 | } |
| 1685 | |
| 1686 | // ---------------------------------------------------------------------------- |
| 1687 | // wxMenuBar drawing |
| 1688 | // ---------------------------------------------------------------------------- |
| 1689 | |
| 1690 | void wxMenuBar::RefreshAllItemsAfter(size_t pos) |
| 1691 | { |
| 1692 | if ( !IsCreated() ) |
| 1693 | { |
| 1694 | // no need to refresh if nothing is shown yet |
| 1695 | return; |
| 1696 | } |
| 1697 | |
| 1698 | wxRect rect = GetItemRect(pos); |
| 1699 | rect.width = GetClientSize().x - rect.x; |
| 1700 | RefreshRect(rect); |
| 1701 | } |
| 1702 | |
| 1703 | void wxMenuBar::RefreshItem(size_t pos) |
| 1704 | { |
| 1705 | wxCHECK_RET( pos != (size_t)-1, |
| 1706 | _T("invalid item in wxMenuBar::RefreshItem") ); |
| 1707 | |
| 1708 | if ( !IsCreated() ) |
| 1709 | { |
| 1710 | // no need to refresh if nothing is shown yet |
| 1711 | return; |
| 1712 | } |
| 1713 | |
| 1714 | RefreshRect(GetItemRect(pos)); |
| 1715 | } |
| 1716 | |
| 1717 | void wxMenuBar::DoDraw(wxControlRenderer *renderer) |
| 1718 | { |
| 1719 | wxDC& dc = renderer->GetDC(); |
| 1720 | dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); |
| 1721 | |
| 1722 | // redraw only the items which must be redrawn |
| 1723 | |
| 1724 | // we don't have to use GetUpdateClientRect() here because our client rect |
| 1725 | // is the same as total one |
| 1726 | wxRect rectUpdate = GetUpdateRegion().GetBox(); |
| 1727 | |
| 1728 | int flagsMenubar = GetStateFlags(); |
| 1729 | |
| 1730 | wxRect rect; |
| 1731 | rect.y = 0; |
| 1732 | rect.height = GetClientSize().y; |
| 1733 | |
| 1734 | wxCoord x = 0; |
| 1735 | size_t count = GetCount(); |
| 1736 | for ( size_t n = 0; n < count; n++ ) |
| 1737 | { |
| 1738 | if ( x > rectUpdate.GetRight() ) |
| 1739 | { |
| 1740 | // all remaining items are to the right of rectUpdate |
| 1741 | break; |
| 1742 | } |
| 1743 | |
| 1744 | rect.x = x; |
| 1745 | rect.width = GetItemWidth(n); |
| 1746 | x += rect.width; |
| 1747 | if ( x < rectUpdate.x ) |
| 1748 | { |
| 1749 | // this item is still to the left of rectUpdate |
| 1750 | continue; |
| 1751 | } |
| 1752 | |
| 1753 | int flags = flagsMenubar; |
| 1754 | if ( m_current != -1 && n == (size_t)m_current ) |
| 1755 | { |
| 1756 | flags |= wxCONTROL_SELECTED; |
| 1757 | } |
| 1758 | |
| 1759 | if ( !IsEnabledTop(n) ) |
| 1760 | { |
| 1761 | flags |= wxCONTROL_DISABLED; |
| 1762 | } |
| 1763 | |
| 1764 | GetRenderer()->DrawMenuBarItem |
| 1765 | ( |
| 1766 | dc, |
| 1767 | rect, |
| 1768 | m_menuInfos[n].GetLabel(), |
| 1769 | flags, |
| 1770 | m_menuInfos[n].GetAccelIndex() |
| 1771 | ); |
| 1772 | } |
| 1773 | } |
| 1774 | |
| 1775 | // ---------------------------------------------------------------------------- |
| 1776 | // wxMenuBar geometry |
| 1777 | // ---------------------------------------------------------------------------- |
| 1778 | |
| 1779 | wxRect wxMenuBar::GetItemRect(size_t pos) const |
| 1780 | { |
| 1781 | wxASSERT_MSG( pos < GetCount(), _T("invalid menu bar item index") ); |
| 1782 | wxASSERT_MSG( IsCreated(), _T("can't call this method yet") ); |
| 1783 | |
| 1784 | wxRect rect; |
| 1785 | rect.x = |
| 1786 | rect.y = 0; |
| 1787 | rect.height = GetClientSize().y; |
| 1788 | |
| 1789 | for ( size_t n = 0; n < pos; n++ ) |
| 1790 | { |
| 1791 | rect.x += GetItemWidth(n); |
| 1792 | } |
| 1793 | |
| 1794 | rect.width = GetItemWidth(pos); |
| 1795 | |
| 1796 | return rect; |
| 1797 | } |
| 1798 | |
| 1799 | wxSize wxMenuBar::DoGetBestClientSize() const |
| 1800 | { |
| 1801 | wxSize size; |
| 1802 | if ( GetMenuCount() > 0 ) |
| 1803 | { |
| 1804 | wxClientDC dc(wxConstCast(this, wxMenuBar)); |
| 1805 | dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); |
| 1806 | dc.GetTextExtent(GetLabelTop(0), &size.x, &size.y); |
| 1807 | |
| 1808 | // adjust for the renderer we use |
| 1809 | size = GetRenderer()->GetMenuBarItemSize(size); |
| 1810 | } |
| 1811 | else // empty menubar |
| 1812 | { |
| 1813 | size.x = |
| 1814 | size.y = 0; |
| 1815 | } |
| 1816 | |
| 1817 | // the width is arbitrary, of course, for horizontal menubar |
| 1818 | size.x = 100; |
| 1819 | |
| 1820 | return size; |
| 1821 | } |
| 1822 | |
| 1823 | int wxMenuBar::GetMenuFromPoint(const wxPoint& pos) const |
| 1824 | { |
| 1825 | if ( pos.x < 0 || pos.y < 0 || pos.y > GetClientSize().y ) |
| 1826 | return -1; |
| 1827 | |
| 1828 | // do find it |
| 1829 | wxCoord x = 0; |
| 1830 | size_t count = GetCount(); |
| 1831 | for ( size_t item = 0; item < count; item++ ) |
| 1832 | { |
| 1833 | x += GetItemWidth(item); |
| 1834 | |
| 1835 | if ( x > pos.x ) |
| 1836 | { |
| 1837 | return item; |
| 1838 | } |
| 1839 | } |
| 1840 | |
| 1841 | // to the right of the last menu item |
| 1842 | return -1; |
| 1843 | } |
| 1844 | |
| 1845 | // ---------------------------------------------------------------------------- |
| 1846 | // wxMenuBar menu operations |
| 1847 | // ---------------------------------------------------------------------------- |
| 1848 | |
| 1849 | void wxMenuBar::SelectMenu(size_t pos) |
| 1850 | { |
| 1851 | SetFocus(); |
| 1852 | wxLogTrace(_T("mousecapture"), _T("Capturing mouse from wxMenuBar::SelectMenu")); |
| 1853 | CaptureMouse(); |
| 1854 | |
| 1855 | DoSelectMenu(pos); |
| 1856 | } |
| 1857 | |
| 1858 | void wxMenuBar::DoSelectMenu(size_t pos) |
| 1859 | { |
| 1860 | wxCHECK_RET( pos < GetCount(), _T("invalid menu index in DoSelectMenu") ); |
| 1861 | |
| 1862 | int posOld = m_current; |
| 1863 | |
| 1864 | m_current = pos; |
| 1865 | |
| 1866 | if ( posOld != -1 ) |
| 1867 | { |
| 1868 | // close the previous menu |
| 1869 | if ( IsShowingMenu() ) |
| 1870 | { |
| 1871 | // restore m_shouldShowMenu flag after DismissMenu() which resets |
| 1872 | // it to FALSE |
| 1873 | bool old = m_shouldShowMenu; |
| 1874 | |
| 1875 | DismissMenu(); |
| 1876 | |
| 1877 | m_shouldShowMenu = old; |
| 1878 | } |
| 1879 | |
| 1880 | RefreshItem((size_t)posOld); |
| 1881 | } |
| 1882 | |
| 1883 | RefreshItem(pos); |
| 1884 | } |
| 1885 | |
| 1886 | void wxMenuBar::PopupMenu(size_t pos) |
| 1887 | { |
| 1888 | wxCHECK_RET( pos < GetCount(), _T("invalid menu index in PopupCurrentMenu") ); |
| 1889 | |
| 1890 | SetFocus(); |
| 1891 | DoSelectMenu(pos); |
| 1892 | PopupCurrentMenu(); |
| 1893 | } |
| 1894 | |
| 1895 | // ---------------------------------------------------------------------------- |
| 1896 | // wxMenuBar input handing |
| 1897 | // ---------------------------------------------------------------------------- |
| 1898 | |
| 1899 | /* |
| 1900 | Note that wxMenuBar doesn't use wxInputHandler but handles keyboard and |
| 1901 | mouse in the same way under all platforms. This is because it doesn't derive |
| 1902 | from wxControl (which works with input handlers) but directly from wxWindow. |
| 1903 | |
| 1904 | Also, menu bar input handling is rather simple, so maybe it's not really |
| 1905 | worth making it themeable - at least I've decided against doing it now as it |
| 1906 | would merging the changes back into trunk more difficult. But it still could |
| 1907 | be done later if really needed. |
| 1908 | */ |
| 1909 | |
| 1910 | void wxMenuBar::OnKillFocus(wxFocusEvent& event) |
| 1911 | { |
| 1912 | if ( m_current != -1 ) |
| 1913 | { |
| 1914 | RefreshItem((size_t)m_current); |
| 1915 | |
| 1916 | m_current = -1; |
| 1917 | } |
| 1918 | |
| 1919 | event.Skip(); |
| 1920 | } |
| 1921 | |
| 1922 | void wxMenuBar::OnLeftDown(wxMouseEvent& event) |
| 1923 | { |
| 1924 | if ( HasCapture() ) |
| 1925 | { |
| 1926 | OnDismiss(); |
| 1927 | |
| 1928 | event.Skip(); |
| 1929 | } |
| 1930 | else // we didn't have mouse capture, capture it now |
| 1931 | { |
| 1932 | m_current = GetMenuFromPoint(event.GetPosition()); |
| 1933 | if ( m_current == -1 ) |
| 1934 | { |
| 1935 | // unfortunately, we can't prevent wxMSW from giving us the focus, |
| 1936 | // so we can only give it back |
| 1937 | GiveAwayFocus(); |
| 1938 | } |
| 1939 | else // on item |
| 1940 | { |
| 1941 | wxLogTrace(_T("mousecapture"), _T("Capturing mouse from wxMenuBar::OnLeftDown")); |
| 1942 | CaptureMouse(); |
| 1943 | |
| 1944 | // show it as selected |
| 1945 | RefreshItem((size_t)m_current); |
| 1946 | |
| 1947 | // show the menu |
| 1948 | PopupCurrentMenu(FALSE /* don't select first item - as Windows does */); |
| 1949 | } |
| 1950 | } |
| 1951 | } |
| 1952 | |
| 1953 | void wxMenuBar::OnMouseMove(wxMouseEvent& event) |
| 1954 | { |
| 1955 | if ( HasCapture() ) |
| 1956 | { |
| 1957 | (void)ProcessMouseEvent(event.GetPosition()); |
| 1958 | } |
| 1959 | else |
| 1960 | { |
| 1961 | event.Skip(); |
| 1962 | } |
| 1963 | } |
| 1964 | |
| 1965 | bool wxMenuBar::ProcessMouseEvent(const wxPoint& pt) |
| 1966 | { |
| 1967 | // a hack to ignore the extra mouse events MSW sends us: this is similar to |
| 1968 | // wxUSE_MOUSEEVENT_HACK in wxWin itself but it isn't enough for us here as |
| 1969 | // we get the messages from different windows (old and new popup menus for |
| 1970 | // example) |
| 1971 | #ifdef __WXMSW__ |
| 1972 | static wxPoint s_ptLast; |
| 1973 | if ( pt == s_ptLast ) |
| 1974 | { |
| 1975 | return FALSE; |
| 1976 | } |
| 1977 | |
| 1978 | s_ptLast = pt; |
| 1979 | #endif // __WXMSW__ |
| 1980 | |
| 1981 | int currentNew = GetMenuFromPoint(pt); |
| 1982 | if ( (currentNew == -1) || (currentNew == m_current) ) |
| 1983 | { |
| 1984 | return FALSE; |
| 1985 | } |
| 1986 | |
| 1987 | // select the new active item |
| 1988 | DoSelectMenu(currentNew); |
| 1989 | |
| 1990 | // show the menu if we know that we should, even if we hadn't been showing |
| 1991 | // it before (this may happen if the previous menu was disabled) |
| 1992 | if ( m_shouldShowMenu && !m_menuShown) |
| 1993 | { |
| 1994 | // open the new menu if the old one we closed had been opened |
| 1995 | PopupCurrentMenu(FALSE /* don't select first item - as Windows does */); |
| 1996 | } |
| 1997 | |
| 1998 | return TRUE; |
| 1999 | } |
| 2000 | |
| 2001 | void wxMenuBar::OnKeyDown(wxKeyEvent& event) |
| 2002 | { |
| 2003 | // ensure that we have a current item - we might not have it if we're |
| 2004 | // given the focus with Alt or F10 press (and under GTK+ the menubar |
| 2005 | // somehow gets the keyboard events even when it doesn't have focus...) |
| 2006 | if ( m_current == -1 ) |
| 2007 | { |
| 2008 | if ( !HasCapture() ) |
| 2009 | { |
| 2010 | SelectMenu(0); |
| 2011 | } |
| 2012 | else // we do have capture |
| 2013 | { |
| 2014 | // we always maintain a valid current item while we're in modal |
| 2015 | // state (i.e. have the capture) |
| 2016 | wxFAIL_MSG( _T("how did we manage to lose current item?") ); |
| 2017 | |
| 2018 | return; |
| 2019 | } |
| 2020 | } |
| 2021 | |
| 2022 | int key = event.GetKeyCode(); |
| 2023 | |
| 2024 | // first let the menu have it |
| 2025 | if ( IsShowingMenu() && m_menuShown->ProcessKeyDown(key) ) |
| 2026 | { |
| 2027 | return; |
| 2028 | } |
| 2029 | |
| 2030 | // cycle through the menu items when left/right arrows are pressed and open |
| 2031 | // the menu when up/down one is |
| 2032 | switch ( key ) |
| 2033 | { |
| 2034 | case WXK_MENU: |
| 2035 | // Alt must be processed at wxWindow level too |
| 2036 | event.Skip(); |
| 2037 | // fall through |
| 2038 | |
| 2039 | case WXK_ESCAPE: |
| 2040 | // remove the selection and give the focus away |
| 2041 | if ( m_current != -1 ) |
| 2042 | { |
| 2043 | if ( IsShowingMenu() ) |
| 2044 | { |
| 2045 | DismissMenu(); |
| 2046 | } |
| 2047 | |
| 2048 | OnDismiss(); |
| 2049 | } |
| 2050 | break; |
| 2051 | |
| 2052 | case WXK_LEFT: |
| 2053 | case WXK_RIGHT: |
| 2054 | { |
| 2055 | size_t count = GetCount(); |
| 2056 | if ( count == 1 ) |
| 2057 | { |
| 2058 | // the item won't change anyhow |
| 2059 | break; |
| 2060 | } |
| 2061 | //else: otherwise, it will |
| 2062 | |
| 2063 | // remember if we were showing a menu - if we did, we should |
| 2064 | // show the new menu after changing the item |
| 2065 | bool wasMenuOpened = IsShowingMenu(); |
| 2066 | if ( wasMenuOpened ) |
| 2067 | { |
| 2068 | DismissMenu(); |
| 2069 | } |
| 2070 | |
| 2071 | // cast is safe as we tested for -1 above |
| 2072 | size_t currentNew = (size_t)m_current; |
| 2073 | |
| 2074 | if ( key == WXK_LEFT ) |
| 2075 | { |
| 2076 | if ( currentNew-- == 0 ) |
| 2077 | currentNew = count - 1; |
| 2078 | } |
| 2079 | else // right |
| 2080 | { |
| 2081 | if ( ++currentNew == count ) |
| 2082 | currentNew = 0; |
| 2083 | } |
| 2084 | |
| 2085 | DoSelectMenu(currentNew); |
| 2086 | |
| 2087 | if ( wasMenuOpened ) |
| 2088 | { |
| 2089 | PopupCurrentMenu(); |
| 2090 | } |
| 2091 | } |
| 2092 | break; |
| 2093 | |
| 2094 | case WXK_DOWN: |
| 2095 | case WXK_UP: |
| 2096 | case WXK_RETURN: |
| 2097 | // open the menu |
| 2098 | PopupCurrentMenu(); |
| 2099 | break; |
| 2100 | |
| 2101 | default: |
| 2102 | // letters open the corresponding menu |
| 2103 | { |
| 2104 | bool unique; |
| 2105 | int idxFound = FindNextItemForAccel(m_current, key, &unique); |
| 2106 | |
| 2107 | if ( idxFound != -1 ) |
| 2108 | { |
| 2109 | if ( IsShowingMenu() ) |
| 2110 | { |
| 2111 | DismissMenu(); |
| 2112 | } |
| 2113 | |
| 2114 | DoSelectMenu((size_t)idxFound); |
| 2115 | |
| 2116 | // if the item is not unique, just select it but don't |
| 2117 | // activate as the user might have wanted to activate |
| 2118 | // another item |
| 2119 | // |
| 2120 | // also, don't try to open a disabled menu |
| 2121 | if ( unique && IsEnabledTop((size_t)idxFound) ) |
| 2122 | { |
| 2123 | // open the menu |
| 2124 | PopupCurrentMenu(); |
| 2125 | } |
| 2126 | |
| 2127 | // skip the "event.Skip()" below |
| 2128 | break; |
| 2129 | } |
| 2130 | } |
| 2131 | |
| 2132 | event.Skip(); |
| 2133 | } |
| 2134 | } |
| 2135 | |
| 2136 | // ---------------------------------------------------------------------------- |
| 2137 | // wxMenuBar accel handling |
| 2138 | // ---------------------------------------------------------------------------- |
| 2139 | |
| 2140 | int wxMenuBar::FindNextItemForAccel(int idxStart, int key, bool *unique) const |
| 2141 | { |
| 2142 | if ( !wxIsalnum(key) ) |
| 2143 | { |
| 2144 | // we only support letters/digits as accels |
| 2145 | return -1; |
| 2146 | } |
| 2147 | |
| 2148 | // do we have more than one item with this accel? |
| 2149 | if ( unique ) |
| 2150 | *unique = TRUE; |
| 2151 | |
| 2152 | // translate everything to lower case before comparing |
| 2153 | wxChar chAccel = wxTolower(key); |
| 2154 | |
| 2155 | // the index of the item with this accel |
| 2156 | int idxFound = -1; |
| 2157 | |
| 2158 | // loop through all items searching for the item with this |
| 2159 | // accel starting at the item after the current one |
| 2160 | int count = GetCount(); |
| 2161 | int n = idxStart == -1 ? 0 : idxStart + 1; |
| 2162 | |
| 2163 | if ( n == count ) |
| 2164 | { |
| 2165 | // wrap |
| 2166 | n = 0; |
| 2167 | } |
| 2168 | |
| 2169 | idxStart = n; |
| 2170 | for ( ;; ) |
| 2171 | { |
| 2172 | const wxMenuInfo& info = m_menuInfos[n]; |
| 2173 | |
| 2174 | int idxAccel = info.GetAccelIndex(); |
| 2175 | if ( idxAccel != -1 && |
| 2176 | wxTolower(info.GetLabel()[(size_t)idxAccel]) |
| 2177 | == chAccel ) |
| 2178 | { |
| 2179 | // ok, found an item with this accel |
| 2180 | if ( idxFound == -1 ) |
| 2181 | { |
| 2182 | // store it but continue searching as we need to |
| 2183 | // know if it's the only item with this accel or if |
| 2184 | // there are more |
| 2185 | idxFound = n; |
| 2186 | } |
| 2187 | else // we already had found such item |
| 2188 | { |
| 2189 | if ( unique ) |
| 2190 | *unique = FALSE; |
| 2191 | |
| 2192 | // no need to continue further, we won't find |
| 2193 | // anything we don't already know |
| 2194 | break; |
| 2195 | } |
| 2196 | } |
| 2197 | |
| 2198 | // we want to iterate over all items wrapping around if |
| 2199 | // necessary |
| 2200 | if ( ++n == count ) |
| 2201 | { |
| 2202 | // wrap |
| 2203 | n = 0; |
| 2204 | } |
| 2205 | |
| 2206 | if ( n == idxStart ) |
| 2207 | { |
| 2208 | // we've seen all items |
| 2209 | break; |
| 2210 | } |
| 2211 | } |
| 2212 | |
| 2213 | return idxFound; |
| 2214 | } |
| 2215 | |
| 2216 | #if wxUSE_ACCEL |
| 2217 | |
| 2218 | bool wxMenuBar::ProcessAccelEvent(const wxKeyEvent& event) |
| 2219 | { |
| 2220 | size_t n = 0; |
| 2221 | for ( wxMenuList::Node *node = m_menus.GetFirst(); |
| 2222 | node; |
| 2223 | node = node->GetNext(), n++ ) |
| 2224 | { |
| 2225 | // accels of the items in the disabled menus shouldn't work |
| 2226 | if ( m_menuInfos[n].IsEnabled() ) |
| 2227 | { |
| 2228 | if ( node->GetData()->ProcessAccelEvent(event) ) |
| 2229 | { |
| 2230 | // menu processed it |
| 2231 | return TRUE; |
| 2232 | } |
| 2233 | } |
| 2234 | } |
| 2235 | |
| 2236 | // not found |
| 2237 | return FALSE; |
| 2238 | } |
| 2239 | |
| 2240 | #endif // wxUSE_ACCEL |
| 2241 | |
| 2242 | // ---------------------------------------------------------------------------- |
| 2243 | // wxMenuBar menus showing |
| 2244 | // ---------------------------------------------------------------------------- |
| 2245 | |
| 2246 | void wxMenuBar::PopupCurrentMenu(bool selectFirst) |
| 2247 | { |
| 2248 | wxCHECK_RET( m_current != -1, _T("no menu to popup") ); |
| 2249 | |
| 2250 | // forgot to call DismissMenu()? |
| 2251 | wxASSERT_MSG( !m_menuShown, _T("shouldn't show two menus at once!") ); |
| 2252 | |
| 2253 | // in any case, we should show it - even if we won't |
| 2254 | m_shouldShowMenu = TRUE; |
| 2255 | |
| 2256 | if ( IsEnabledTop(m_current) ) |
| 2257 | { |
| 2258 | // remember the menu we show |
| 2259 | m_menuShown = GetMenu(m_current); |
| 2260 | |
| 2261 | // we don't show the menu at all if it has no items |
| 2262 | if ( !m_menuShown->IsEmpty() ) |
| 2263 | { |
| 2264 | // position it correctly: note that we must use screen coords and |
| 2265 | // that we pass 0 as width to position the menu exactly below the |
| 2266 | // item, not to the right of it |
| 2267 | wxRect rectItem = GetItemRect(m_current); |
| 2268 | |
| 2269 | m_menuShown->Popup(ClientToScreen(rectItem.GetPosition()), |
| 2270 | wxSize(0, rectItem.GetHeight()), |
| 2271 | selectFirst); |
| 2272 | } |
| 2273 | else |
| 2274 | { |
| 2275 | // reset it back as no menu is shown |
| 2276 | m_menuShown = NULL; |
| 2277 | } |
| 2278 | } |
| 2279 | //else: don't show disabled menu |
| 2280 | } |
| 2281 | |
| 2282 | void wxMenuBar::DismissMenu() |
| 2283 | { |
| 2284 | wxCHECK_RET( m_menuShown, _T("can't dismiss menu if none is shown") ); |
| 2285 | |
| 2286 | m_menuShown->Dismiss(); |
| 2287 | OnDismissMenu(); |
| 2288 | } |
| 2289 | |
| 2290 | void wxMenuBar::OnDismissMenu(bool dismissMenuBar) |
| 2291 | { |
| 2292 | m_shouldShowMenu = FALSE; |
| 2293 | m_menuShown = NULL; |
| 2294 | if ( dismissMenuBar ) |
| 2295 | { |
| 2296 | OnDismiss(); |
| 2297 | } |
| 2298 | } |
| 2299 | |
| 2300 | void wxMenuBar::OnDismiss() |
| 2301 | { |
| 2302 | if ( GetCapture() ) |
| 2303 | { |
| 2304 | wxLogTrace(_T("mousecapture"), _T("Releasing mouse from wxMenuBar::OnDismiss")); |
| 2305 | GetCapture()->ReleaseMouse(); |
| 2306 | } |
| 2307 | |
| 2308 | if ( m_current != -1 ) |
| 2309 | { |
| 2310 | size_t current = m_current; |
| 2311 | m_current = -1; |
| 2312 | |
| 2313 | RefreshItem(current); |
| 2314 | } |
| 2315 | |
| 2316 | GiveAwayFocus(); |
| 2317 | } |
| 2318 | |
| 2319 | void wxMenuBar::GiveAwayFocus() |
| 2320 | { |
| 2321 | GetFrame()->SetFocus(); |
| 2322 | } |
| 2323 | |
| 2324 | // ---------------------------------------------------------------------------- |
| 2325 | // popup menu support |
| 2326 | // ---------------------------------------------------------------------------- |
| 2327 | |
| 2328 | wxEventLoop *wxWindow::ms_evtLoopPopup = NULL; |
| 2329 | |
| 2330 | bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y) |
| 2331 | { |
| 2332 | wxCHECK_MSG( !ms_evtLoopPopup, FALSE, |
| 2333 | _T("can't show more than one popup menu at a time") ); |
| 2334 | |
| 2335 | #ifdef __WXMSW__ |
| 2336 | // we need to change the cursor before showing the menu as, apparently, no |
| 2337 | // cursor changes took place while the mouse is captured |
| 2338 | wxCursor cursorOld = GetCursor(); |
| 2339 | SetCursor(wxCURSOR_ARROW); |
| 2340 | #endif // __WXMSW__ |
| 2341 | |
| 2342 | #if 0 |
| 2343 | // flash any delayed log messages before showing the menu, otherwise it |
| 2344 | // could be dismissed (because it would lose focus) immediately after being |
| 2345 | // shown |
| 2346 | wxLog::FlushActive(); |
| 2347 | |
| 2348 | // some controls update themselves from OnIdle() call - let them do it |
| 2349 | wxIdleEvent event; |
| 2350 | wxTheApp->ProcessEvent(event); |
| 2351 | |
| 2352 | // if the window hadn't been refreshed yet, the menu can adversely affect |
| 2353 | // its next OnPaint() handler execution - i.e. scrolled window refresh |
| 2354 | // logic breaks then as it scrolls part of the menu which hadn't been there |
| 2355 | // when the update event was generated into view |
| 2356 | Update(); |
| 2357 | #endif // 0 |
| 2358 | |
| 2359 | menu->SetInvokingWindow(this); |
| 2360 | |
| 2361 | // wxLogDebug( "Name of invoking window %s", menu->GetInvokingWindow()->GetName().c_str() ); |
| 2362 | |
| 2363 | menu->Popup(ClientToScreen(wxPoint(x, y)), wxSize(0, 0)); |
| 2364 | |
| 2365 | // this is not very useful if the menu was popped up because of the mouse |
| 2366 | // click but I think it is nice to do when it appears because of a key |
| 2367 | // press (i.e. Windows menu key) |
| 2368 | // |
| 2369 | // Windows itself doesn't do it, but IMHO this is nice |
| 2370 | WarpPointer(x, y); |
| 2371 | |
| 2372 | // we have to redirect all keyboard input to the menu temporarily |
| 2373 | PushEventHandler(new wxMenuKbdRedirector(menu)); |
| 2374 | |
| 2375 | // enter the local modal loop |
| 2376 | ms_evtLoopPopup = new wxEventLoop; |
| 2377 | ms_evtLoopPopup->Run(); |
| 2378 | |
| 2379 | delete ms_evtLoopPopup; |
| 2380 | ms_evtLoopPopup = NULL; |
| 2381 | |
| 2382 | // remove the handler |
| 2383 | PopEventHandler(TRUE /* delete it */); |
| 2384 | |
| 2385 | menu->SetInvokingWindow(NULL); |
| 2386 | |
| 2387 | #ifdef __WXMSW__ |
| 2388 | SetCursor(cursorOld); |
| 2389 | #endif // __WXMSW__ |
| 2390 | |
| 2391 | return TRUE; |
| 2392 | } |
| 2393 | |
| 2394 | void wxWindow::DismissPopupMenu() |
| 2395 | { |
| 2396 | wxCHECK_RET( ms_evtLoopPopup, _T("no popup menu shown") ); |
| 2397 | |
| 2398 | ms_evtLoopPopup->Exit(); |
| 2399 | } |
| 2400 | |
| 2401 | #endif // wxUSE_MENUS |
| 2402 | |