| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/msw/mdi.cpp |
| 3 | // Purpose: MDI classes for wxMSW |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: |
| 6 | // Created: 04/01/98 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Julian Smart and Markus Holzem |
| 9 | // Licence: wxWindows license |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // =========================================================================== |
| 13 | // declarations |
| 14 | // =========================================================================== |
| 15 | |
| 16 | // --------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // --------------------------------------------------------------------------- |
| 19 | |
| 20 | #ifdef __GNUG__ |
| 21 | #pragma implementation "mdi.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/setup.h" |
| 33 | #include "wx/frame.h" |
| 34 | #include "wx/menu.h" |
| 35 | #include "wx/app.h" |
| 36 | #include "wx/utils.h" |
| 37 | #include "wx/dialog.h" |
| 38 | #if wxUSE_STATUSBAR |
| 39 | #include "wx/statusbr.h" |
| 40 | #endif |
| 41 | #include "wx/settings.h" |
| 42 | #include "wx/intl.h" |
| 43 | #include "wx/log.h" |
| 44 | #endif |
| 45 | |
| 46 | #include "wx/mdi.h" |
| 47 | #include "wx/msw/private.h" |
| 48 | |
| 49 | #if wxUSE_STATUSBAR && wxUSE_NATIVE_STATUSBAR |
| 50 | #include "wx/msw/statbr95.h" |
| 51 | #endif |
| 52 | |
| 53 | #if wxUSE_TOOLBAR |
| 54 | #include "wx/toolbar.h" |
| 55 | #endif // wxUSE_TOOLBAR |
| 56 | |
| 57 | #include <string.h> |
| 58 | |
| 59 | // --------------------------------------------------------------------------- |
| 60 | // global variables |
| 61 | // --------------------------------------------------------------------------- |
| 62 | |
| 63 | extern wxWindowList wxModelessWindows; // from dialog.cpp |
| 64 | extern wxMenu *wxCurrentPopupMenu; |
| 65 | |
| 66 | extern const wxChar *wxMDIFrameClassName; // from app.cpp |
| 67 | extern const wxChar *wxMDIChildFrameClassName; |
| 68 | extern const wxChar *wxMDIChildFrameClassNameNoRedraw; |
| 69 | |
| 70 | extern void wxAssociateWinWithHandle(HWND hWnd, wxWindow *win); |
| 71 | extern void wxRemoveHandleAssociation(wxWindow *win); |
| 72 | |
| 73 | static HWND invalidHandle = 0; |
| 74 | |
| 75 | // --------------------------------------------------------------------------- |
| 76 | // constants |
| 77 | // --------------------------------------------------------------------------- |
| 78 | |
| 79 | static const int IDM_WINDOWTILE = 4001; |
| 80 | static const int IDM_WINDOWTILEHOR = 4001; |
| 81 | static const int IDM_WINDOWCASCADE = 4002; |
| 82 | static const int IDM_WINDOWICONS = 4003; |
| 83 | static const int IDM_WINDOWNEXT = 4004; |
| 84 | static const int IDM_WINDOWTILEVERT = 4005; |
| 85 | |
| 86 | // This range gives a maximum of 500 MDI children. Should be enough :-) |
| 87 | static const int wxFIRST_MDI_CHILD = 4100; |
| 88 | static const int wxLAST_MDI_CHILD = 4600; |
| 89 | |
| 90 | // Status border dimensions |
| 91 | static const int wxTHICK_LINE_BORDER = 3; |
| 92 | static const int wxTHICK_LINE_WIDTH = 1; |
| 93 | |
| 94 | // --------------------------------------------------------------------------- |
| 95 | // private functions |
| 96 | // --------------------------------------------------------------------------- |
| 97 | |
| 98 | // set the MDI menus (by sending the WM_MDISETMENU message) and update the menu |
| 99 | // of the parent of win (which is supposed to be the MDI client window) |
| 100 | static void MDISetMenu(wxWindow *win, HMENU hmenuFrame, HMENU hmenuWindow); |
| 101 | |
| 102 | // insert the window menu (subMenu) into menu just before "Help" submenu or at |
| 103 | // the very end if not found |
| 104 | static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu); |
| 105 | |
| 106 | // Remove the window menu |
| 107 | static void RemoveWindowMenu(wxWindow *win, WXHMENU menu); |
| 108 | |
| 109 | // is this an id of an MDI child? |
| 110 | inline bool IsMdiCommandId(int id) |
| 111 | { |
| 112 | return (id >= wxFIRST_MDI_CHILD) && (id <= wxLAST_MDI_CHILD); |
| 113 | } |
| 114 | |
| 115 | // unpack the parameters of WM_MDIACTIVATE message |
| 116 | static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam, |
| 117 | WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact); |
| 118 | |
| 119 | // return the HMENU of the MDI menu |
| 120 | static inline HMENU GetMDIWindowMenu(wxMDIParentFrame *frame) |
| 121 | { |
| 122 | wxMenu *menu = frame->GetWindowMenu(); |
| 123 | return menu ? GetHmenuOf(menu) : 0; |
| 124 | } |
| 125 | |
| 126 | // =========================================================================== |
| 127 | // implementation |
| 128 | // =========================================================================== |
| 129 | |
| 130 | // --------------------------------------------------------------------------- |
| 131 | // wxWin macros |
| 132 | // --------------------------------------------------------------------------- |
| 133 | |
| 134 | IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame, wxFrame) |
| 135 | IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame, wxFrame) |
| 136 | IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow, wxWindow) |
| 137 | |
| 138 | BEGIN_EVENT_TABLE(wxMDIParentFrame, wxFrame) |
| 139 | EVT_SIZE(wxMDIParentFrame::OnSize) |
| 140 | EVT_SYS_COLOUR_CHANGED(wxMDIParentFrame::OnSysColourChanged) |
| 141 | END_EVENT_TABLE() |
| 142 | |
| 143 | BEGIN_EVENT_TABLE(wxMDIChildFrame, wxFrame) |
| 144 | EVT_IDLE(wxMDIChildFrame::OnIdle) |
| 145 | END_EVENT_TABLE() |
| 146 | |
| 147 | BEGIN_EVENT_TABLE(wxMDIClientWindow, wxWindow) |
| 148 | EVT_SCROLL(wxMDIClientWindow::OnScroll) |
| 149 | END_EVENT_TABLE() |
| 150 | |
| 151 | // =========================================================================== |
| 152 | // wxMDIParentFrame: the frame which contains the client window which manages |
| 153 | // the children |
| 154 | // =========================================================================== |
| 155 | |
| 156 | wxMDIParentFrame::wxMDIParentFrame() |
| 157 | { |
| 158 | m_clientWindow = NULL; |
| 159 | m_currentChild = NULL; |
| 160 | m_windowMenu = (wxMenu*) NULL; |
| 161 | m_parentFrameActive = TRUE; |
| 162 | } |
| 163 | |
| 164 | bool wxMDIParentFrame::Create(wxWindow *parent, |
| 165 | wxWindowID id, |
| 166 | const wxString& title, |
| 167 | const wxPoint& pos, |
| 168 | const wxSize& size, |
| 169 | long style, |
| 170 | const wxString& name) |
| 171 | { |
| 172 | m_clientWindow = NULL; |
| 173 | m_currentChild = NULL; |
| 174 | |
| 175 | // this style can be used to prevent a window from having the standard MDI |
| 176 | // "Window" menu |
| 177 | if ( style & wxFRAME_NO_WINDOW_MENU ) |
| 178 | { |
| 179 | m_windowMenu = (wxMenu *)NULL; |
| 180 | } |
| 181 | else // normal case: we have the window menu, so construct it |
| 182 | { |
| 183 | m_windowMenu = new wxMenu; |
| 184 | |
| 185 | m_windowMenu->Append(IDM_WINDOWCASCADE, _("&Cascade")); |
| 186 | m_windowMenu->Append(IDM_WINDOWTILEHOR, _("Tile &Horizontally")); |
| 187 | m_windowMenu->Append(IDM_WINDOWTILEVERT, _("Tile &Vertically")); |
| 188 | m_windowMenu->AppendSeparator(); |
| 189 | m_windowMenu->Append(IDM_WINDOWICONS, _("&Arrange Icons")); |
| 190 | m_windowMenu->Append(IDM_WINDOWNEXT, _("&Next")); |
| 191 | } |
| 192 | |
| 193 | m_parentFrameActive = TRUE; |
| 194 | |
| 195 | if (!parent) |
| 196 | wxTopLevelWindows.Append(this); |
| 197 | |
| 198 | SetName(name); |
| 199 | m_windowStyle = style; |
| 200 | |
| 201 | if ( parent ) |
| 202 | parent->AddChild(this); |
| 203 | |
| 204 | if ( id > -1 ) |
| 205 | m_windowId = id; |
| 206 | else |
| 207 | m_windowId = NewControlId(); |
| 208 | |
| 209 | WXDWORD exflags; |
| 210 | WXDWORD msflags = MSWGetCreateWindowFlags(&exflags); |
| 211 | |
| 212 | if ( !wxWindow::MSWCreate(wxMDIFrameClassName, |
| 213 | title, |
| 214 | pos, size, |
| 215 | msflags, |
| 216 | exflags) ) |
| 217 | { |
| 218 | return FALSE; |
| 219 | } |
| 220 | |
| 221 | wxModelessWindows.Append(this); |
| 222 | |
| 223 | // unlike (almost?) all other windows, frames are created hidden |
| 224 | m_isShown = FALSE; |
| 225 | |
| 226 | return TRUE; |
| 227 | } |
| 228 | |
| 229 | wxMDIParentFrame::~wxMDIParentFrame() |
| 230 | { |
| 231 | DestroyChildren(); |
| 232 | |
| 233 | // already delete by DestroyChildren() |
| 234 | m_frameToolBar = NULL; |
| 235 | m_frameStatusBar = NULL; |
| 236 | |
| 237 | if (m_windowMenu) |
| 238 | { |
| 239 | delete m_windowMenu; |
| 240 | m_windowMenu = (wxMenu*) NULL; |
| 241 | } |
| 242 | |
| 243 | // the MDI frame menubar is not automatically deleted by Windows unlike for |
| 244 | // the normal frames |
| 245 | if ( m_hMenu ) |
| 246 | { |
| 247 | ::DestroyMenu((HMENU)m_hMenu); |
| 248 | m_hMenu = (WXHMENU)NULL; |
| 249 | } |
| 250 | |
| 251 | if ( m_clientWindow ) |
| 252 | { |
| 253 | if ( m_clientWindow->MSWGetOldWndProc() ) |
| 254 | m_clientWindow->UnsubclassWin(); |
| 255 | |
| 256 | m_clientWindow->SetHWND(0); |
| 257 | delete m_clientWindow; |
| 258 | } |
| 259 | } |
| 260 | |
| 261 | #if wxUSE_MENUS_NATIVE |
| 262 | |
| 263 | void wxMDIParentFrame::InternalSetMenuBar() |
| 264 | { |
| 265 | m_parentFrameActive = TRUE; |
| 266 | |
| 267 | InsertWindowMenu(GetClientWindow(), m_hMenu, GetMDIWindowMenu(this)); |
| 268 | } |
| 269 | |
| 270 | #endif // wxUSE_MENUS_NATIVE |
| 271 | |
| 272 | void wxMDIParentFrame::SetWindowMenu(wxMenu* menu) |
| 273 | { |
| 274 | if (m_windowMenu) |
| 275 | { |
| 276 | if (GetMenuBar()) |
| 277 | { |
| 278 | // Remove old window menu |
| 279 | RemoveWindowMenu(GetClientWindow(), m_hMenu); |
| 280 | } |
| 281 | |
| 282 | delete m_windowMenu; |
| 283 | m_windowMenu = (wxMenu*) NULL; |
| 284 | } |
| 285 | |
| 286 | if (menu) |
| 287 | { |
| 288 | m_windowMenu = menu; |
| 289 | if (GetMenuBar()) |
| 290 | { |
| 291 | InsertWindowMenu(GetClientWindow(), m_hMenu, |
| 292 | GetHmenuOf(m_windowMenu)); |
| 293 | } |
| 294 | } |
| 295 | } |
| 296 | |
| 297 | void wxMDIParentFrame::OnSize(wxSizeEvent&) |
| 298 | { |
| 299 | if ( GetClientWindow() ) |
| 300 | { |
| 301 | int width, height; |
| 302 | GetClientSize(&width, &height); |
| 303 | |
| 304 | GetClientWindow()->SetSize(0, 0, width, height); |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | // Returns the active MDI child window |
| 309 | wxMDIChildFrame *wxMDIParentFrame::GetActiveChild() const |
| 310 | { |
| 311 | HWND hWnd = (HWND)::SendMessage(GetWinHwnd(GetClientWindow()), |
| 312 | WM_MDIGETACTIVE, 0, 0L); |
| 313 | if ( hWnd == 0 ) |
| 314 | return NULL; |
| 315 | else |
| 316 | return (wxMDIChildFrame *)wxFindWinFromHandle((WXHWND) hWnd); |
| 317 | } |
| 318 | |
| 319 | // Create the client window class (don't Create the window, just return a new |
| 320 | // class) |
| 321 | wxMDIClientWindow *wxMDIParentFrame::OnCreateClient() |
| 322 | { |
| 323 | return new wxMDIClientWindow; |
| 324 | } |
| 325 | |
| 326 | // Responds to colour changes, and passes event on to children. |
| 327 | void wxMDIParentFrame::OnSysColourChanged(wxSysColourChangedEvent& event) |
| 328 | { |
| 329 | if ( m_clientWindow ) |
| 330 | { |
| 331 | m_clientWindow->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE)); |
| 332 | m_clientWindow->Refresh(); |
| 333 | } |
| 334 | |
| 335 | event.Skip(); |
| 336 | } |
| 337 | |
| 338 | WXHICON wxMDIParentFrame::GetDefaultIcon() const |
| 339 | { |
| 340 | return (WXHICON)(wxSTD_MDIPARENTFRAME_ICON ? wxSTD_MDIPARENTFRAME_ICON |
| 341 | : wxDEFAULT_MDIPARENTFRAME_ICON); |
| 342 | } |
| 343 | |
| 344 | // --------------------------------------------------------------------------- |
| 345 | // MDI operations |
| 346 | // --------------------------------------------------------------------------- |
| 347 | |
| 348 | void wxMDIParentFrame::Cascade() |
| 349 | { |
| 350 | ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDICASCADE, 0, 0); |
| 351 | } |
| 352 | |
| 353 | // TODO: add a direction argument (hor/vert) |
| 354 | void wxMDIParentFrame::Tile() |
| 355 | { |
| 356 | ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDITILE, MDITILE_HORIZONTAL, 0); |
| 357 | } |
| 358 | |
| 359 | void wxMDIParentFrame::ArrangeIcons() |
| 360 | { |
| 361 | ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDIICONARRANGE, 0, 0); |
| 362 | } |
| 363 | |
| 364 | void wxMDIParentFrame::ActivateNext() |
| 365 | { |
| 366 | ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDINEXT, 0, 0); |
| 367 | } |
| 368 | |
| 369 | void wxMDIParentFrame::ActivatePrevious() |
| 370 | { |
| 371 | ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDINEXT, 0, 1); |
| 372 | } |
| 373 | |
| 374 | // --------------------------------------------------------------------------- |
| 375 | // the MDI parent frame window proc |
| 376 | // --------------------------------------------------------------------------- |
| 377 | |
| 378 | long wxMDIParentFrame::MSWWindowProc(WXUINT message, |
| 379 | WXWPARAM wParam, |
| 380 | WXLPARAM lParam) |
| 381 | { |
| 382 | long rc = 0; |
| 383 | bool processed = FALSE; |
| 384 | |
| 385 | switch ( message ) |
| 386 | { |
| 387 | case WM_ACTIVATE: |
| 388 | { |
| 389 | WXWORD state, minimized; |
| 390 | WXHWND hwnd; |
| 391 | UnpackActivate(wParam, lParam, &state, &minimized, &hwnd); |
| 392 | |
| 393 | processed = HandleActivate(state, minimized != 0, hwnd); |
| 394 | } |
| 395 | break; |
| 396 | |
| 397 | case WM_COMMAND: |
| 398 | { |
| 399 | WXWORD id, cmd; |
| 400 | WXHWND hwnd; |
| 401 | UnpackCommand(wParam, lParam, &id, &hwnd, &cmd); |
| 402 | |
| 403 | (void)HandleCommand(id, cmd, hwnd); |
| 404 | |
| 405 | // even if the frame didn't process it, there is no need to try it |
| 406 | // once again (i.e. call wxFrame::HandleCommand()) - we just dud it, |
| 407 | // so pretend we processed the message anyhow |
| 408 | processed = TRUE; |
| 409 | } |
| 410 | |
| 411 | // always pass this message DefFrameProc(), otherwise MDI menu |
| 412 | // commands (and sys commands - more surprizingly!) won't work |
| 413 | MSWDefWindowProc(message, wParam, lParam); |
| 414 | break; |
| 415 | |
| 416 | case WM_CREATE: |
| 417 | m_clientWindow = OnCreateClient(); |
| 418 | // Uses own style for client style |
| 419 | if ( !m_clientWindow->CreateClient(this, GetWindowStyleFlag()) ) |
| 420 | { |
| 421 | wxLogMessage(_("Failed to create MDI parent frame.")); |
| 422 | |
| 423 | rc = -1; |
| 424 | } |
| 425 | |
| 426 | processed = TRUE; |
| 427 | break; |
| 428 | |
| 429 | case WM_ERASEBKGND: |
| 430 | processed = TRUE; |
| 431 | |
| 432 | // we erase background ourselves |
| 433 | rc = TRUE; |
| 434 | break; |
| 435 | |
| 436 | case WM_MENUSELECT: |
| 437 | { |
| 438 | WXWORD item, flags; |
| 439 | WXHMENU hmenu; |
| 440 | UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu); |
| 441 | |
| 442 | if ( m_parentFrameActive ) |
| 443 | { |
| 444 | processed = HandleMenuSelect(item, flags, hmenu); |
| 445 | } |
| 446 | else if (m_currentChild) |
| 447 | { |
| 448 | processed = m_currentChild-> |
| 449 | HandleMenuSelect(item, flags, hmenu); |
| 450 | } |
| 451 | } |
| 452 | break; |
| 453 | |
| 454 | case WM_SIZE: |
| 455 | // as we don't (usually) resize the MDI client to exactly fit the |
| 456 | // client area (we put it below the toolbar, above statusbar &c), |
| 457 | // we should not pass this one to DefFrameProc |
| 458 | break; |
| 459 | } |
| 460 | |
| 461 | if ( !processed ) |
| 462 | rc = wxFrame::MSWWindowProc(message, wParam, lParam); |
| 463 | |
| 464 | return rc; |
| 465 | } |
| 466 | |
| 467 | bool wxMDIParentFrame::HandleActivate(int state, bool minimized, WXHWND activate) |
| 468 | { |
| 469 | bool processed = FALSE; |
| 470 | |
| 471 | if ( wxWindow::HandleActivate(state, minimized, activate) ) |
| 472 | { |
| 473 | // already processed |
| 474 | processed = TRUE; |
| 475 | } |
| 476 | |
| 477 | // If this window is an MDI parent, we must also send an OnActivate message |
| 478 | // to the current child. |
| 479 | if ( (m_currentChild != NULL) && |
| 480 | ((state == WA_ACTIVE) || (state == WA_CLICKACTIVE)) ) |
| 481 | { |
| 482 | wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_currentChild->GetId()); |
| 483 | event.SetEventObject( m_currentChild ); |
| 484 | if ( m_currentChild->GetEventHandler()->ProcessEvent(event) ) |
| 485 | processed = TRUE; |
| 486 | } |
| 487 | |
| 488 | return processed; |
| 489 | } |
| 490 | |
| 491 | bool wxMDIParentFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd) |
| 492 | { |
| 493 | // In case it's e.g. a toolbar. |
| 494 | if ( hwnd ) |
| 495 | { |
| 496 | wxWindow *win = wxFindWinFromHandle(hwnd); |
| 497 | if ( win ) |
| 498 | return win->MSWCommand(cmd, id); |
| 499 | } |
| 500 | |
| 501 | // is it one of standard MDI commands? |
| 502 | WXWPARAM wParam = 0; |
| 503 | int msg; |
| 504 | switch ( id ) |
| 505 | { |
| 506 | case IDM_WINDOWCASCADE: |
| 507 | msg = WM_MDICASCADE; |
| 508 | wParam = MDITILE_SKIPDISABLED; |
| 509 | break; |
| 510 | |
| 511 | case IDM_WINDOWTILEHOR: |
| 512 | wParam |= MDITILE_HORIZONTAL; |
| 513 | // fall through |
| 514 | |
| 515 | case IDM_WINDOWTILEVERT: |
| 516 | if ( !wParam ) |
| 517 | wParam = MDITILE_VERTICAL; |
| 518 | msg = WM_MDITILE; |
| 519 | wParam |= MDITILE_SKIPDISABLED; |
| 520 | break; |
| 521 | |
| 522 | case IDM_WINDOWICONS: |
| 523 | msg = WM_MDIICONARRANGE; |
| 524 | break; |
| 525 | |
| 526 | case IDM_WINDOWNEXT: |
| 527 | msg = WM_MDINEXT; |
| 528 | break; |
| 529 | |
| 530 | default: |
| 531 | msg = 0; |
| 532 | } |
| 533 | |
| 534 | if ( msg ) |
| 535 | { |
| 536 | ::SendMessage(GetWinHwnd(GetClientWindow()), msg, wParam, 0); |
| 537 | |
| 538 | return TRUE; |
| 539 | } |
| 540 | |
| 541 | // FIXME VZ: what does this test do?? |
| 542 | if (id >= 0xF000) |
| 543 | { |
| 544 | return FALSE; // Get WndProc to call default proc |
| 545 | } |
| 546 | |
| 547 | if ( IsMdiCommandId(id) ) |
| 548 | { |
| 549 | wxWindowList::Node* node = GetChildren().GetFirst(); |
| 550 | while ( node ) |
| 551 | { |
| 552 | wxWindow* child = node->GetData(); |
| 553 | if ( child->GetHWND() ) |
| 554 | { |
| 555 | long childId = wxGetWindowId(child->GetHWND()); |
| 556 | if (childId == (long)id) |
| 557 | { |
| 558 | ::SendMessage( GetWinHwnd(GetClientWindow()), |
| 559 | WM_MDIACTIVATE, |
| 560 | (WPARAM)child->GetHWND(), 0); |
| 561 | return TRUE; |
| 562 | } |
| 563 | } |
| 564 | node = node->GetNext(); |
| 565 | } |
| 566 | } |
| 567 | else if ( m_parentFrameActive ) |
| 568 | { |
| 569 | return ProcessCommand(id); |
| 570 | } |
| 571 | else if ( m_currentChild ) |
| 572 | { |
| 573 | return m_currentChild->HandleCommand(id, cmd, hwnd); |
| 574 | } |
| 575 | else |
| 576 | { |
| 577 | // this shouldn't happen because it means that our messages are being |
| 578 | // lost (they're not sent to the parent frame nor to the children) |
| 579 | wxFAIL_MSG(wxT("MDI parent frame is not active, yet there is no active MDI child?")); |
| 580 | } |
| 581 | |
| 582 | return FALSE; |
| 583 | } |
| 584 | |
| 585 | long wxMDIParentFrame::MSWDefWindowProc(WXUINT message, |
| 586 | WXWPARAM wParam, |
| 587 | WXLPARAM lParam) |
| 588 | { |
| 589 | WXHWND clientWnd; |
| 590 | if ( GetClientWindow() ) |
| 591 | clientWnd = GetClientWindow()->GetHWND(); |
| 592 | else |
| 593 | clientWnd = 0; |
| 594 | |
| 595 | return DefFrameProc(GetHwnd(), (HWND)clientWnd, message, wParam, lParam); |
| 596 | } |
| 597 | |
| 598 | bool wxMDIParentFrame::MSWTranslateMessage(WXMSG* msg) |
| 599 | { |
| 600 | MSG *pMsg = (MSG *)msg; |
| 601 | |
| 602 | // first let the current child get it |
| 603 | if ( m_currentChild && m_currentChild->GetHWND() && |
| 604 | m_currentChild->MSWTranslateMessage(msg) ) |
| 605 | { |
| 606 | return TRUE; |
| 607 | } |
| 608 | |
| 609 | // then try out accel table (will also check the menu accels) |
| 610 | if ( wxFrame::MSWTranslateMessage(msg) ) |
| 611 | { |
| 612 | return TRUE; |
| 613 | } |
| 614 | |
| 615 | // finally, check for MDI specific built in accel keys |
| 616 | if ( pMsg->message == WM_KEYDOWN || pMsg->message == WM_SYSKEYDOWN ) |
| 617 | { |
| 618 | if ( ::TranslateMDISysAccel(GetWinHwnd(GetClientWindow()), pMsg)) |
| 619 | return TRUE; |
| 620 | } |
| 621 | |
| 622 | return FALSE; |
| 623 | } |
| 624 | |
| 625 | // =========================================================================== |
| 626 | // wxMDIChildFrame |
| 627 | // =========================================================================== |
| 628 | |
| 629 | void wxMDIChildFrame::Init() |
| 630 | { |
| 631 | m_needsResize = TRUE; |
| 632 | } |
| 633 | |
| 634 | bool wxMDIChildFrame::Create(wxMDIParentFrame *parent, |
| 635 | wxWindowID id, |
| 636 | const wxString& title, |
| 637 | const wxPoint& pos, |
| 638 | const wxSize& size, |
| 639 | long style, |
| 640 | const wxString& name) |
| 641 | { |
| 642 | SetName(name); |
| 643 | wxWindowBase::Show(TRUE); // MDI child frame starts off shown |
| 644 | |
| 645 | if ( id > -1 ) |
| 646 | m_windowId = id; |
| 647 | else |
| 648 | m_windowId = (int)NewControlId(); |
| 649 | |
| 650 | if ( parent ) |
| 651 | { |
| 652 | parent->AddChild(this); |
| 653 | } |
| 654 | |
| 655 | int x = pos.x; |
| 656 | int y = pos.y; |
| 657 | int width = size.x; |
| 658 | int height = size.y; |
| 659 | |
| 660 | MDICREATESTRUCT mcs; |
| 661 | |
| 662 | mcs.szClass = style & wxNO_FULL_REPAINT_ON_RESIZE |
| 663 | ? wxMDIChildFrameClassNameNoRedraw |
| 664 | : wxMDIChildFrameClassName; |
| 665 | mcs.szTitle = title; |
| 666 | mcs.hOwner = wxGetInstance(); |
| 667 | if (x > -1) |
| 668 | mcs.x = x; |
| 669 | else |
| 670 | mcs.x = CW_USEDEFAULT; |
| 671 | |
| 672 | if (y > -1) |
| 673 | mcs.y = y; |
| 674 | else |
| 675 | mcs.y = CW_USEDEFAULT; |
| 676 | |
| 677 | if (width > -1) |
| 678 | mcs.cx = width; |
| 679 | else |
| 680 | mcs.cx = CW_USEDEFAULT; |
| 681 | |
| 682 | if (height > -1) |
| 683 | mcs.cy = height; |
| 684 | else |
| 685 | mcs.cy = CW_USEDEFAULT; |
| 686 | |
| 687 | DWORD msflags = WS_OVERLAPPED | WS_CLIPCHILDREN | WS_THICKFRAME | WS_VISIBLE ; |
| 688 | if (style & wxMINIMIZE_BOX) |
| 689 | msflags |= WS_MINIMIZEBOX; |
| 690 | if (style & wxMAXIMIZE_BOX) |
| 691 | msflags |= WS_MAXIMIZEBOX; |
| 692 | if (style & wxTHICK_FRAME) |
| 693 | msflags |= WS_THICKFRAME; |
| 694 | if (style & wxSYSTEM_MENU) |
| 695 | msflags |= WS_SYSMENU; |
| 696 | if ((style & wxMINIMIZE) || (style & wxICONIZE)) |
| 697 | msflags |= WS_MINIMIZE; |
| 698 | if (style & wxMAXIMIZE) |
| 699 | msflags |= WS_MAXIMIZE; |
| 700 | if (style & wxCAPTION) |
| 701 | msflags |= WS_CAPTION; |
| 702 | |
| 703 | mcs.style = msflags; |
| 704 | |
| 705 | mcs.lParam = 0; |
| 706 | |
| 707 | wxWindowCreationHook hook(this); |
| 708 | |
| 709 | m_hWnd = (WXHWND)::SendMessage(GetWinHwnd(parent->GetClientWindow()), |
| 710 | WM_MDICREATE, 0, (LONG)(LPSTR)&mcs); |
| 711 | |
| 712 | wxAssociateWinWithHandle((HWND) GetHWND(), this); |
| 713 | |
| 714 | wxModelessWindows.Append(this); |
| 715 | |
| 716 | return TRUE; |
| 717 | } |
| 718 | |
| 719 | wxMDIChildFrame::~wxMDIChildFrame() |
| 720 | { |
| 721 | DestroyChildren(); |
| 722 | |
| 723 | // already deleted by DestroyChildren() |
| 724 | m_frameToolBar = NULL; |
| 725 | m_frameStatusBar = NULL; |
| 726 | |
| 727 | RemoveWindowMenu(NULL, m_hMenu); |
| 728 | |
| 729 | MSWDestroyWindow(); |
| 730 | } |
| 731 | |
| 732 | // Set the client size (i.e. leave the calculation of borders etc. |
| 733 | // to wxWindows) |
| 734 | void wxMDIChildFrame::DoSetClientSize(int width, int height) |
| 735 | { |
| 736 | HWND hWnd = GetHwnd(); |
| 737 | |
| 738 | RECT rect; |
| 739 | ::GetClientRect(hWnd, &rect); |
| 740 | |
| 741 | RECT rect2; |
| 742 | GetWindowRect(hWnd, &rect2); |
| 743 | |
| 744 | // Find the difference between the entire window (title bar and all) |
| 745 | // and the client area; add this to the new client size to move the |
| 746 | // window |
| 747 | int actual_width = rect2.right - rect2.left - rect.right + width; |
| 748 | int actual_height = rect2.bottom - rect2.top - rect.bottom + height; |
| 749 | |
| 750 | if (GetStatusBar() && GetStatusBar()->IsShown()) |
| 751 | { |
| 752 | int sx, sy; |
| 753 | GetStatusBar()->GetSize(&sx, &sy); |
| 754 | actual_height += sy; |
| 755 | } |
| 756 | |
| 757 | POINT point; |
| 758 | point.x = rect2.left; |
| 759 | point.y = rect2.top; |
| 760 | |
| 761 | // If there's an MDI parent, must subtract the parent's top left corner |
| 762 | // since MoveWindow moves relative to the parent |
| 763 | wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent(); |
| 764 | ::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point); |
| 765 | |
| 766 | MoveWindow(hWnd, point.x, point.y, actual_width, actual_height, (BOOL)TRUE); |
| 767 | |
| 768 | wxSizeEvent event(wxSize(width, height), m_windowId); |
| 769 | event.SetEventObject( this ); |
| 770 | GetEventHandler()->ProcessEvent(event); |
| 771 | } |
| 772 | |
| 773 | void wxMDIChildFrame::DoGetPosition(int *x, int *y) const |
| 774 | { |
| 775 | RECT rect; |
| 776 | GetWindowRect(GetHwnd(), &rect); |
| 777 | POINT point; |
| 778 | point.x = rect.left; |
| 779 | point.y = rect.top; |
| 780 | |
| 781 | // Since we now have the absolute screen coords, |
| 782 | // if there's a parent we must subtract its top left corner |
| 783 | wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent(); |
| 784 | ::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point); |
| 785 | |
| 786 | *x = point.x; |
| 787 | *y = point.y; |
| 788 | } |
| 789 | |
| 790 | void wxMDIChildFrame::InternalSetMenuBar() |
| 791 | { |
| 792 | wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent(); |
| 793 | |
| 794 | InsertWindowMenu(parent->GetClientWindow(), |
| 795 | m_hMenu, GetMDIWindowMenu(parent)); |
| 796 | |
| 797 | parent->m_parentFrameActive = FALSE; |
| 798 | } |
| 799 | |
| 800 | WXHICON wxMDIChildFrame::GetDefaultIcon() const |
| 801 | { |
| 802 | return (WXHICON)(wxSTD_MDICHILDFRAME_ICON ? wxSTD_MDICHILDFRAME_ICON |
| 803 | : wxDEFAULT_MDICHILDFRAME_ICON); |
| 804 | } |
| 805 | |
| 806 | // --------------------------------------------------------------------------- |
| 807 | // MDI operations |
| 808 | // --------------------------------------------------------------------------- |
| 809 | |
| 810 | void wxMDIChildFrame::Maximize(bool maximize) |
| 811 | { |
| 812 | wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent(); |
| 813 | if ( parent && parent->GetClientWindow() ) |
| 814 | { |
| 815 | ::SendMessage(GetWinHwnd(parent->GetClientWindow()), |
| 816 | maximize ? WM_MDIMAXIMIZE : WM_MDIRESTORE, |
| 817 | (WPARAM)GetHwnd(), 0); |
| 818 | } |
| 819 | } |
| 820 | |
| 821 | void wxMDIChildFrame::Restore() |
| 822 | { |
| 823 | wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent(); |
| 824 | if ( parent && parent->GetClientWindow() ) |
| 825 | { |
| 826 | ::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIRESTORE, |
| 827 | (WPARAM) GetHwnd(), 0); |
| 828 | } |
| 829 | } |
| 830 | |
| 831 | void wxMDIChildFrame::Activate() |
| 832 | { |
| 833 | wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent(); |
| 834 | if ( parent && parent->GetClientWindow() ) |
| 835 | { |
| 836 | ::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIACTIVATE, |
| 837 | (WPARAM) GetHwnd(), 0); |
| 838 | } |
| 839 | } |
| 840 | |
| 841 | // --------------------------------------------------------------------------- |
| 842 | // MDI window proc and message handlers |
| 843 | // --------------------------------------------------------------------------- |
| 844 | |
| 845 | long wxMDIChildFrame::MSWWindowProc(WXUINT message, |
| 846 | WXWPARAM wParam, |
| 847 | WXLPARAM lParam) |
| 848 | { |
| 849 | long rc = 0; |
| 850 | bool processed = FALSE; |
| 851 | |
| 852 | switch ( message ) |
| 853 | { |
| 854 | case WM_COMMAND: |
| 855 | { |
| 856 | WORD id, cmd; |
| 857 | WXHWND hwnd; |
| 858 | UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam, |
| 859 | &id, &hwnd, &cmd); |
| 860 | |
| 861 | processed = HandleCommand(id, cmd, (WXHWND)hwnd); |
| 862 | } |
| 863 | break; |
| 864 | |
| 865 | case WM_GETMINMAXINFO: |
| 866 | processed = HandleGetMinMaxInfo((MINMAXINFO *)lParam); |
| 867 | break; |
| 868 | |
| 869 | case WM_MDIACTIVATE: |
| 870 | { |
| 871 | WXWORD act; |
| 872 | WXHWND hwndAct, hwndDeact; |
| 873 | UnpackMDIActivate(wParam, lParam, &act, &hwndAct, &hwndDeact); |
| 874 | |
| 875 | processed = HandleMDIActivate(act, hwndAct, hwndDeact); |
| 876 | } |
| 877 | // fall through |
| 878 | |
| 879 | case WM_MOVE: |
| 880 | // must pass WM_MOVE to DefMDIChildProc() to recalculate MDI client |
| 881 | // scrollbars if necessary |
| 882 | |
| 883 | // fall through |
| 884 | |
| 885 | case WM_SIZE: |
| 886 | // must pass WM_SIZE to DefMDIChildProc(), otherwise many weird |
| 887 | // things happen |
| 888 | MSWDefWindowProc(message, wParam, lParam); |
| 889 | break; |
| 890 | |
| 891 | case WM_SYSCOMMAND: |
| 892 | // DefMDIChildProc handles SC_{NEXT/PREV}WINDOW here, so pass it |
| 893 | // the message (the base class version does not) |
| 894 | return MSWDefWindowProc(message, wParam, lParam); |
| 895 | |
| 896 | case WM_WINDOWPOSCHANGING: |
| 897 | processed = HandleWindowPosChanging((LPWINDOWPOS)lParam); |
| 898 | break; |
| 899 | } |
| 900 | |
| 901 | if ( !processed ) |
| 902 | rc = wxFrame::MSWWindowProc(message, wParam, lParam); |
| 903 | |
| 904 | return rc; |
| 905 | } |
| 906 | |
| 907 | bool wxMDIChildFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd) |
| 908 | { |
| 909 | // In case it's e.g. a toolbar. |
| 910 | if ( hwnd ) |
| 911 | { |
| 912 | wxWindow *win = wxFindWinFromHandle(hwnd); |
| 913 | if (win) |
| 914 | return win->MSWCommand(cmd, id); |
| 915 | } |
| 916 | |
| 917 | if (wxCurrentPopupMenu) |
| 918 | { |
| 919 | wxMenu *popupMenu = wxCurrentPopupMenu; |
| 920 | wxCurrentPopupMenu = NULL; |
| 921 | if (popupMenu->MSWCommand(cmd, id)) |
| 922 | return TRUE; |
| 923 | } |
| 924 | |
| 925 | bool processed; |
| 926 | if (GetMenuBar() && GetMenuBar()->FindItem(id)) |
| 927 | { |
| 928 | processed = ProcessCommand(id); |
| 929 | } |
| 930 | else |
| 931 | { |
| 932 | processed = FALSE; |
| 933 | } |
| 934 | |
| 935 | return processed; |
| 936 | } |
| 937 | |
| 938 | bool wxMDIChildFrame::HandleMDIActivate(long WXUNUSED(activate), |
| 939 | WXHWND hwndAct, |
| 940 | WXHWND hwndDeact) |
| 941 | { |
| 942 | wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent(); |
| 943 | |
| 944 | HMENU menuToSet = 0; |
| 945 | |
| 946 | bool activated; |
| 947 | |
| 948 | if ( m_hWnd == hwndAct ) |
| 949 | { |
| 950 | activated = TRUE; |
| 951 | parent->m_currentChild = this; |
| 952 | |
| 953 | HMENU child_menu = (HMENU)GetWinMenu(); |
| 954 | if ( child_menu ) |
| 955 | { |
| 956 | parent->m_parentFrameActive = FALSE; |
| 957 | |
| 958 | menuToSet = child_menu; |
| 959 | } |
| 960 | } |
| 961 | else if ( m_hWnd == hwndDeact ) |
| 962 | { |
| 963 | wxASSERT_MSG( parent->m_currentChild == this, |
| 964 | wxT("can't deactivate MDI child which wasn't active!") ); |
| 965 | |
| 966 | activated = FALSE; |
| 967 | parent->m_currentChild = NULL; |
| 968 | |
| 969 | HMENU parent_menu = (HMENU)parent->GetWinMenu(); |
| 970 | |
| 971 | // activate the the parent menu only when there is no other child |
| 972 | // that has been activated |
| 973 | if ( parent_menu && !hwndAct ) |
| 974 | { |
| 975 | parent->m_parentFrameActive = TRUE; |
| 976 | |
| 977 | menuToSet = parent_menu; |
| 978 | } |
| 979 | } |
| 980 | else |
| 981 | { |
| 982 | // we have nothing to do with it |
| 983 | return FALSE; |
| 984 | } |
| 985 | |
| 986 | if ( menuToSet ) |
| 987 | { |
| 988 | MDISetMenu(parent->GetClientWindow(), |
| 989 | menuToSet, GetMDIWindowMenu(parent)); |
| 990 | } |
| 991 | |
| 992 | wxActivateEvent event(wxEVT_ACTIVATE, activated, m_windowId); |
| 993 | event.SetEventObject( this ); |
| 994 | |
| 995 | ResetWindowStyle((void *)NULL); |
| 996 | |
| 997 | return GetEventHandler()->ProcessEvent(event); |
| 998 | } |
| 999 | |
| 1000 | bool wxMDIChildFrame::HandleWindowPosChanging(void *pos) |
| 1001 | { |
| 1002 | WINDOWPOS *lpPos = (WINDOWPOS *)pos; |
| 1003 | #if defined(__WIN95__) |
| 1004 | if (!(lpPos->flags & SWP_NOSIZE)) |
| 1005 | { |
| 1006 | RECT rectClient; |
| 1007 | DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE); |
| 1008 | DWORD dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE); |
| 1009 | if (ResetWindowStyle((void *) & rectClient) && (dwStyle & WS_MAXIMIZE)) |
| 1010 | { |
| 1011 | ::AdjustWindowRectEx(&rectClient, dwStyle, FALSE, dwExStyle); |
| 1012 | lpPos->x = rectClient.left; |
| 1013 | lpPos->y = rectClient.top; |
| 1014 | lpPos->cx = rectClient.right - rectClient.left; |
| 1015 | lpPos->cy = rectClient.bottom - rectClient.top; |
| 1016 | } |
| 1017 | wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent(); |
| 1018 | if (pFrameWnd && pFrameWnd->GetToolBar() && pFrameWnd->GetToolBar()->IsShown()) |
| 1019 | { |
| 1020 | pFrameWnd->GetToolBar()->Refresh(); |
| 1021 | } |
| 1022 | } |
| 1023 | #endif // Win95 |
| 1024 | |
| 1025 | return FALSE; |
| 1026 | } |
| 1027 | |
| 1028 | bool wxMDIChildFrame::HandleGetMinMaxInfo(void *mmInfo) |
| 1029 | { |
| 1030 | MINMAXINFO *info = (MINMAXINFO *)mmInfo; |
| 1031 | |
| 1032 | // let the default window proc calculate the size of MDI children |
| 1033 | // frames because it is based on the size of the MDI client window, |
| 1034 | // not on the values specified in wxWindow m_max variables |
| 1035 | bool processed = MSWDefWindowProc(WM_GETMINMAXINFO, 0, (LPARAM)mmInfo) != 0; |
| 1036 | |
| 1037 | int minWidth = GetMinWidth(), |
| 1038 | minHeight = GetMinHeight(); |
| 1039 | |
| 1040 | // but allow GetSizeHints() to set the min size |
| 1041 | if ( minWidth != -1 ) |
| 1042 | { |
| 1043 | info->ptMinTrackSize.x = minWidth; |
| 1044 | |
| 1045 | processed = TRUE; |
| 1046 | } |
| 1047 | |
| 1048 | if ( minHeight != -1 ) |
| 1049 | { |
| 1050 | info->ptMinTrackSize.y = minHeight; |
| 1051 | |
| 1052 | processed = TRUE; |
| 1053 | } |
| 1054 | |
| 1055 | return TRUE; |
| 1056 | } |
| 1057 | |
| 1058 | // --------------------------------------------------------------------------- |
| 1059 | // MDI specific message translation/preprocessing |
| 1060 | // --------------------------------------------------------------------------- |
| 1061 | |
| 1062 | long wxMDIChildFrame::MSWDefWindowProc(WXUINT message, WXUINT wParam, WXLPARAM lParam) |
| 1063 | { |
| 1064 | return DefMDIChildProc(GetHwnd(), |
| 1065 | (UINT)message, (WPARAM)wParam, (LPARAM)lParam); |
| 1066 | } |
| 1067 | |
| 1068 | bool wxMDIChildFrame::MSWTranslateMessage(WXMSG* msg) |
| 1069 | { |
| 1070 | return wxFrame::MSWTranslateMessage(msg); |
| 1071 | } |
| 1072 | |
| 1073 | // --------------------------------------------------------------------------- |
| 1074 | // misc |
| 1075 | // --------------------------------------------------------------------------- |
| 1076 | |
| 1077 | void wxMDIChildFrame::MSWDestroyWindow() |
| 1078 | { |
| 1079 | invalidHandle = GetHwnd(); |
| 1080 | |
| 1081 | wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent(); |
| 1082 | |
| 1083 | // Must make sure this handle is invalidated (set to NULL) since all sorts |
| 1084 | // of things could happen after the child client is destroyed, but before |
| 1085 | // the wxFrame is destroyed. |
| 1086 | |
| 1087 | HWND oldHandle = (HWND)GetHWND(); |
| 1088 | SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIDESTROY, |
| 1089 | (WPARAM)oldHandle, 0); |
| 1090 | |
| 1091 | if (parent->GetActiveChild() == (wxMDIChildFrame*) NULL) |
| 1092 | ResetWindowStyle((void*) NULL); |
| 1093 | |
| 1094 | invalidHandle = 0; |
| 1095 | |
| 1096 | if (m_hMenu) |
| 1097 | { |
| 1098 | ::DestroyMenu((HMENU) m_hMenu); |
| 1099 | m_hMenu = 0; |
| 1100 | } |
| 1101 | wxRemoveHandleAssociation(this); |
| 1102 | m_hWnd = 0; |
| 1103 | } |
| 1104 | |
| 1105 | // Change the client window's extended style so we don't get a client edge |
| 1106 | // style when a child is maximised (a double border looks silly.) |
| 1107 | bool wxMDIChildFrame::ResetWindowStyle(void *vrect) |
| 1108 | { |
| 1109 | #if defined(__WIN95__) |
| 1110 | RECT *rect = (RECT *)vrect; |
| 1111 | wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent(); |
| 1112 | wxMDIChildFrame* pChild = pFrameWnd->GetActiveChild(); |
| 1113 | if (!pChild || (pChild == this)) |
| 1114 | { |
| 1115 | HWND hwndClient = GetWinHwnd(pFrameWnd->GetClientWindow()); |
| 1116 | DWORD dwStyle = ::GetWindowLong(hwndClient, GWL_EXSTYLE); |
| 1117 | |
| 1118 | // we want to test whether there is a maximized child, so just set |
| 1119 | // dwThisStyle to 0 if there is no child at all |
| 1120 | DWORD dwThisStyle = pChild |
| 1121 | ? ::GetWindowLong(GetWinHwnd(pChild), GWL_STYLE) : 0; |
| 1122 | DWORD dwNewStyle = dwStyle; |
| 1123 | if ( dwThisStyle & WS_MAXIMIZE ) |
| 1124 | dwNewStyle &= ~(WS_EX_CLIENTEDGE); |
| 1125 | else |
| 1126 | dwNewStyle |= WS_EX_CLIENTEDGE; |
| 1127 | |
| 1128 | if (dwStyle != dwNewStyle) |
| 1129 | { |
| 1130 | // force update of everything |
| 1131 | ::RedrawWindow(hwndClient, NULL, NULL, |
| 1132 | RDW_INVALIDATE | RDW_ALLCHILDREN); |
| 1133 | ::SetWindowLong(hwndClient, GWL_EXSTYLE, dwNewStyle); |
| 1134 | ::SetWindowPos(hwndClient, NULL, 0, 0, 0, 0, |
| 1135 | SWP_FRAMECHANGED | SWP_NOACTIVATE | |
| 1136 | SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | |
| 1137 | SWP_NOCOPYBITS); |
| 1138 | if (rect) |
| 1139 | ::GetClientRect(hwndClient, rect); |
| 1140 | |
| 1141 | return TRUE; |
| 1142 | } |
| 1143 | } |
| 1144 | #endif // Win95 |
| 1145 | |
| 1146 | return FALSE; |
| 1147 | } |
| 1148 | |
| 1149 | // =========================================================================== |
| 1150 | // wxMDIClientWindow: the window of predefined (by Windows) class which |
| 1151 | // contains the child frames |
| 1152 | // =========================================================================== |
| 1153 | |
| 1154 | bool wxMDIClientWindow::CreateClient(wxMDIParentFrame *parent, long style) |
| 1155 | { |
| 1156 | m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE); |
| 1157 | |
| 1158 | CLIENTCREATESTRUCT ccs; |
| 1159 | m_windowStyle = style; |
| 1160 | m_parent = parent; |
| 1161 | |
| 1162 | ccs.hWindowMenu = GetMDIWindowMenu(parent); |
| 1163 | ccs.idFirstChild = wxFIRST_MDI_CHILD; |
| 1164 | |
| 1165 | DWORD msStyle = MDIS_ALLCHILDSTYLES | WS_VISIBLE | WS_CHILD | |
| 1166 | WS_CLIPCHILDREN | WS_CLIPSIBLINGS; |
| 1167 | |
| 1168 | if ( style & wxHSCROLL ) |
| 1169 | msStyle |= WS_HSCROLL; |
| 1170 | if ( style & wxVSCROLL ) |
| 1171 | msStyle |= WS_VSCROLL; |
| 1172 | |
| 1173 | #if defined(__WIN95__) |
| 1174 | DWORD exStyle = WS_EX_CLIENTEDGE; |
| 1175 | #else |
| 1176 | DWORD exStyle = 0; |
| 1177 | #endif |
| 1178 | |
| 1179 | wxWindowCreationHook hook(this); |
| 1180 | m_hWnd = (WXHWND)::CreateWindowEx |
| 1181 | ( |
| 1182 | exStyle, |
| 1183 | wxT("MDICLIENT"), |
| 1184 | NULL, |
| 1185 | msStyle, |
| 1186 | 0, 0, 0, 0, |
| 1187 | GetWinHwnd(parent), |
| 1188 | NULL, |
| 1189 | wxGetInstance(), |
| 1190 | (LPSTR)(LPCLIENTCREATESTRUCT)&ccs); |
| 1191 | if ( !m_hWnd ) |
| 1192 | { |
| 1193 | wxLogLastError(wxT("CreateWindowEx(MDI client)")); |
| 1194 | |
| 1195 | return FALSE; |
| 1196 | } |
| 1197 | |
| 1198 | SubclassWin(m_hWnd); |
| 1199 | |
| 1200 | return TRUE; |
| 1201 | } |
| 1202 | |
| 1203 | // Explicitly call default scroll behaviour |
| 1204 | void wxMDIClientWindow::OnScroll(wxScrollEvent& event) |
| 1205 | { |
| 1206 | // Note: for client windows, the scroll position is not set in |
| 1207 | // WM_HSCROLL, WM_VSCROLL, so we can't easily determine what |
| 1208 | // scroll position we're at. |
| 1209 | // This makes it hard to paint patterns or bitmaps in the background, |
| 1210 | // and have the client area scrollable as well. |
| 1211 | |
| 1212 | if ( event.GetOrientation() == wxHORIZONTAL ) |
| 1213 | m_scrollX = event.GetPosition(); // Always returns zero! |
| 1214 | else |
| 1215 | m_scrollY = event.GetPosition(); // Always returns zero! |
| 1216 | |
| 1217 | event.Skip(); |
| 1218 | } |
| 1219 | |
| 1220 | void wxMDIClientWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags) |
| 1221 | { |
| 1222 | // Try to fix a problem whereby if you show an MDI child frame, then reposition the |
| 1223 | // client area, you can end up with a non-refreshed portion in the client window |
| 1224 | // (see OGL studio sample). So check if the position is changed and if so, |
| 1225 | // redraw the MDI child frames. |
| 1226 | |
| 1227 | wxPoint oldPos = GetPosition(); |
| 1228 | |
| 1229 | wxWindow::DoSetSize(x, y, width, height, sizeFlags); |
| 1230 | |
| 1231 | wxPoint newPos = GetPosition(); |
| 1232 | |
| 1233 | if ((newPos.x != oldPos.x) || (newPos.y != oldPos.y)) |
| 1234 | { |
| 1235 | if (GetParent()) |
| 1236 | { |
| 1237 | wxNode* node = GetParent()->GetChildren().First(); |
| 1238 | while (node) |
| 1239 | { |
| 1240 | wxWindow* child = (wxWindow*) node->Data(); |
| 1241 | if (child->IsKindOf(CLASSINFO(wxMDIChildFrame))) |
| 1242 | { |
| 1243 | HWND hWnd = (HWND) child->GetHWND(); |
| 1244 | ::RedrawWindow(hWnd, NULL, NULL, RDW_FRAME|RDW_ALLCHILDREN|RDW_INVALIDATE ); |
| 1245 | } |
| 1246 | node = node->Next(); |
| 1247 | } |
| 1248 | } |
| 1249 | } |
| 1250 | } |
| 1251 | |
| 1252 | void wxMDIChildFrame::OnIdle(wxIdleEvent& event) |
| 1253 | { |
| 1254 | // MDI child frames get their WM_SIZE when they're constructed but at this |
| 1255 | // moment they don't have any children yet so all child windows will be |
| 1256 | // positioned incorrectly when they are added later - to fix this, we |
| 1257 | // generate an artificial size event here |
| 1258 | if ( m_needsResize ) |
| 1259 | { |
| 1260 | m_needsResize = FALSE; // avoid any possibility of recursion |
| 1261 | |
| 1262 | SendSizeEvent(); |
| 1263 | } |
| 1264 | |
| 1265 | event.Skip(); |
| 1266 | } |
| 1267 | |
| 1268 | // --------------------------------------------------------------------------- |
| 1269 | // non member functions |
| 1270 | // --------------------------------------------------------------------------- |
| 1271 | |
| 1272 | static void MDISetMenu(wxWindow *win, HMENU hmenuFrame, HMENU hmenuWindow) |
| 1273 | { |
| 1274 | ::SendMessage(GetWinHwnd(win), WM_MDISETMENU, |
| 1275 | #ifdef __WIN32__ |
| 1276 | (WPARAM)hmenuFrame, (LPARAM)hmenuWindow |
| 1277 | #else |
| 1278 | 0, MAKELPARAM(hmenuFrame, hmenuWindow) |
| 1279 | #endif |
| 1280 | ); |
| 1281 | |
| 1282 | // update menu bar of the parent window |
| 1283 | wxWindow *parent = win->GetParent(); |
| 1284 | wxCHECK_RET( parent, wxT("MDI client without parent frame? weird...") ); |
| 1285 | |
| 1286 | #ifndef __WIN16__ |
| 1287 | ::SendMessage(GetWinHwnd(win), WM_MDIREFRESHMENU, 0, 0L); |
| 1288 | #endif |
| 1289 | |
| 1290 | ::DrawMenuBar(GetWinHwnd(parent)); |
| 1291 | } |
| 1292 | |
| 1293 | static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu) |
| 1294 | { |
| 1295 | // Try to insert Window menu in front of Help, otherwise append it. |
| 1296 | HMENU hmenu = (HMENU)menu; |
| 1297 | |
| 1298 | if (subMenu) |
| 1299 | { |
| 1300 | int N = GetMenuItemCount(hmenu); |
| 1301 | bool success = FALSE; |
| 1302 | for ( int i = 0; i < N; i++ ) |
| 1303 | { |
| 1304 | wxChar buf[256]; |
| 1305 | int chars = GetMenuString(hmenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION); |
| 1306 | if ( chars == 0 ) |
| 1307 | { |
| 1308 | wxLogLastError(wxT("GetMenuString")); |
| 1309 | |
| 1310 | continue; |
| 1311 | } |
| 1312 | |
| 1313 | if ( wxStripMenuCodes(wxString(buf)).IsSameAs(_("Help")) ) |
| 1314 | { |
| 1315 | success = TRUE; |
| 1316 | ::InsertMenu(hmenu, i, MF_BYPOSITION | MF_POPUP | MF_STRING, |
| 1317 | (UINT)subMenu, _("&Window")); |
| 1318 | break; |
| 1319 | } |
| 1320 | } |
| 1321 | |
| 1322 | if ( !success ) |
| 1323 | { |
| 1324 | ::AppendMenu(hmenu, MF_POPUP, (UINT)subMenu, _("&Window")); |
| 1325 | } |
| 1326 | } |
| 1327 | |
| 1328 | MDISetMenu(win, hmenu, subMenu); |
| 1329 | } |
| 1330 | |
| 1331 | static void RemoveWindowMenu(wxWindow *win, WXHMENU menu) |
| 1332 | { |
| 1333 | HMENU hMenu = (HMENU)menu; |
| 1334 | |
| 1335 | if ( hMenu ) |
| 1336 | { |
| 1337 | wxChar buf[1024]; |
| 1338 | |
| 1339 | int N = ::GetMenuItemCount(hMenu); |
| 1340 | for ( int i = 0; i < N; i++ ) |
| 1341 | { |
| 1342 | if ( !::GetMenuString(hMenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION) ) |
| 1343 | { |
| 1344 | wxLogLastError(wxT("GetMenuString")); |
| 1345 | |
| 1346 | continue; |
| 1347 | } |
| 1348 | |
| 1349 | if ( wxStrcmp(buf, _("&Window")) == 0 ) |
| 1350 | { |
| 1351 | if ( !::RemoveMenu(hMenu, i, MF_BYPOSITION) ) |
| 1352 | { |
| 1353 | wxLogLastError(wxT("RemoveMenu")); |
| 1354 | } |
| 1355 | |
| 1356 | break; |
| 1357 | } |
| 1358 | } |
| 1359 | } |
| 1360 | |
| 1361 | if ( win ) |
| 1362 | { |
| 1363 | // we don't change the windows menu, but we update the main one |
| 1364 | MDISetMenu(win, hMenu, NULL); |
| 1365 | } |
| 1366 | } |
| 1367 | |
| 1368 | static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam, |
| 1369 | WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact) |
| 1370 | { |
| 1371 | #ifdef __WIN32__ |
| 1372 | *activate = TRUE; |
| 1373 | *hwndAct = (WXHWND)lParam; |
| 1374 | *hwndDeact = (WXHWND)wParam; |
| 1375 | #else // Win16 |
| 1376 | *activate = (WXWORD)wParam; |
| 1377 | *hwndAct = (WXHWND)LOWORD(lParam); |
| 1378 | *hwndDeact = (WXHWND)HIWORD(lParam); |
| 1379 | #endif // Win32/Win16 |
| 1380 | } |