///////////////////////////////////////////////////////////////////////////// // Name: mdi.cpp // Purpose: MDI classes // Author: Julian Smart // Modified by: // Created: 04/01/98 // RCS-ID: $Id$ // Copyright: (c) Julian Smart and Markus Holzem // Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// // =========================================================================== // declarations // =========================================================================== // --------------------------------------------------------------------------- // headers // --------------------------------------------------------------------------- #ifdef __GNUG__ #pragma implementation "mdi.h" #endif // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ #pragma hdrstop #endif #ifndef WX_PRECOMP #include "wx/setup.h" #include "wx/frame.h" #include "wx/menu.h" #include "wx/app.h" #include "wx/utils.h" #include "wx/dialog.h" #include "wx/statusbr.h" #include "wx/settings.h" #include "wx/intl.h" #include "wx/log.h" #endif #include "wx/mdi.h" #include "wx/msw/private.h" #if wxUSE_NATIVE_STATUSBAR #include #endif #include // --------------------------------------------------------------------------- // global variables // --------------------------------------------------------------------------- extern wxWindowList wxModelessWindows; // from dialog.cpp extern wxMenu *wxCurrentPopupMenu; extern wxChar wxMDIFrameClassName[]; extern wxChar wxMDIChildFrameClassName[]; extern wxWindow *wxWndHook; // from window.cpp extern void wxAssociateWinWithHandle(HWND hWnd, wxWindow *win); static HWND invalidHandle = 0; // --------------------------------------------------------------------------- // constants // --------------------------------------------------------------------------- static const int IDM_WINDOWTILE = 4001; static const int IDM_WINDOWTILEHOR = 4001; static const int IDM_WINDOWCASCADE = 4002; static const int IDM_WINDOWICONS = 4003; static const int IDM_WINDOWNEXT = 4004; static const int IDM_WINDOWTILEVERT = 4005; // This range gives a maximum of 500 MDI children. Should be enough :-) static const int wxFIRST_MDI_CHILD = 4100; static const int wxLAST_MDI_CHILD = 4600; // Status border dimensions static const int wxTHICK_LINE_BORDER = 3; static const int wxTHICK_LINE_WIDTH = 1; // --------------------------------------------------------------------------- // private functions // --------------------------------------------------------------------------- // set the MDI menus (by sending the WM_MDISETMENU message) and update the menu // of the parent of win (which is supposed to be the MDI client window) static void MDISetMenu(wxWindow *win, HMENU hmenuFrame, HMENU hmenuWindow); // insert the window menu (subMenu) into menu just before "Help" submenu or at // the very end if not found static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu); // is this an id of an MDI child? inline bool IsMdiCommandId(int id) { return (id >= wxFIRST_MDI_CHILD) && (id <= wxLAST_MDI_CHILD); } static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam, WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact); // =========================================================================== // implementation // =========================================================================== // --------------------------------------------------------------------------- // wxWin macros // --------------------------------------------------------------------------- #if !USE_SHARED_LIBRARY IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame, wxFrame) IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame, wxFrame) IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow, wxWindow) #endif // USE_SHARED_LIBRARY BEGIN_EVENT_TABLE(wxMDIParentFrame, wxFrame) EVT_SIZE(wxMDIParentFrame::OnSize) EVT_SYS_COLOUR_CHANGED(wxMDIParentFrame::OnSysColourChanged) END_EVENT_TABLE() BEGIN_EVENT_TABLE(wxMDIClientWindow, wxWindow) EVT_SCROLL(wxMDIClientWindow::OnScroll) END_EVENT_TABLE() // =========================================================================== // wxMDIParentFrame: the frame which contains the client window which manages // the children // =========================================================================== wxMDIParentFrame::wxMDIParentFrame() { m_clientWindow = NULL; m_currentChild = NULL; m_windowMenu = 0; m_parentFrameActive = TRUE; } bool wxMDIParentFrame::Create(wxWindow *parent, wxWindowID id, const wxString& title, const wxPoint& pos, const wxSize& size, long style, const wxString& name) { m_defaultIcon = (WXHICON) (wxSTD_MDIPARENTFRAME_ICON ? wxSTD_MDIPARENTFRAME_ICON : wxDEFAULT_MDIPARENTFRAME_ICON); m_clientWindow = NULL; m_currentChild = NULL; m_windowMenu = 0; m_parentFrameActive = TRUE; if (!parent) wxTopLevelWindows.Append(this); SetName(name); m_windowStyle = style; if (parent) parent->AddChild(this); if ( id > -1 ) m_windowId = id; else m_windowId = (int)NewControlId(); int x = pos.x; int y = pos.y; int width = size.x; int height = size.y; m_windowMenu = (WXHMENU) ::LoadMenu(wxGetInstance(), wxT("wxWindowMenu")); DWORD msflags = WS_OVERLAPPED; if (style & wxMINIMIZE_BOX) msflags |= WS_MINIMIZEBOX; if (style & wxMAXIMIZE_BOX) msflags |= WS_MAXIMIZEBOX; if (style & wxTHICK_FRAME) msflags |= WS_THICKFRAME; if (style & wxSYSTEM_MENU) msflags |= WS_SYSMENU; if ((style & wxMINIMIZE) || (style & wxICONIZE)) msflags |= WS_MINIMIZE; if (style & wxMAXIMIZE) msflags |= WS_MAXIMIZE; if (style & wxCAPTION) msflags |= WS_CAPTION; if (style & wxCLIP_CHILDREN) msflags |= WS_CLIPCHILDREN; wxWindow::MSWCreate(m_windowId, parent, wxMDIFrameClassName, this, title, x, y, width, height, msflags); wxModelessWindows.Append(this); return TRUE; } wxMDIParentFrame::~wxMDIParentFrame() { DestroyChildren(); ::DestroyMenu((HMENU)m_windowMenu); m_windowMenu = 0; if ( m_clientWindow ) { if ( m_clientWindow->MSWGetOldWndProc() ) m_clientWindow->UnsubclassWin(); m_clientWindow->SetHWND(0); delete m_clientWindow; } } void wxMDIParentFrame::InternalSetMenuBar() { HMENU subMenu = GetSubMenu((HMENU) m_windowMenu, 0); m_parentFrameActive = TRUE; InsertWindowMenu(GetClientWindow(), m_hMenu, subMenu); } void wxMDIParentFrame::OnSize(wxSizeEvent& event) { if ( GetClientWindow() ) { int width, height; GetClientSize(&width, &height); GetClientWindow()->SetSize(0, 0, width, height); } } // Returns the active MDI child window wxMDIChildFrame *wxMDIParentFrame::GetActiveChild() const { HWND hWnd = (HWND)::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDIGETACTIVE, 0, 0L); if ( hWnd == 0 ) return NULL; else return (wxMDIChildFrame *)wxFindWinFromHandle((WXHWND) hWnd); } // Create the client window class (don't Create the window, just return a new // class) wxMDIClientWindow *wxMDIParentFrame::OnCreateClient() { return new wxMDIClientWindow; } // Responds to colour changes, and passes event on to children. void wxMDIParentFrame::OnSysColourChanged(wxSysColourChangedEvent& event) { if ( m_clientWindow ) { m_clientWindow->SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE)); m_clientWindow->Refresh(); } event.Skip(); } // --------------------------------------------------------------------------- // MDI operations // --------------------------------------------------------------------------- void wxMDIParentFrame::Cascade() { ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDICASCADE, 0, 0); } // TODO: add a direction argument (hor/vert) void wxMDIParentFrame::Tile() { ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDITILE, MDITILE_HORIZONTAL, 0); } void wxMDIParentFrame::ArrangeIcons() { ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDIICONARRANGE, 0, 0); } void wxMDIParentFrame::ActivateNext() { ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDINEXT, 0, 0); } void wxMDIParentFrame::ActivatePrevious() { ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDINEXT, 0, 1); } // --------------------------------------------------------------------------- // the MDI parent frame window proc // --------------------------------------------------------------------------- long wxMDIParentFrame::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam) { long rc = 0; bool processed = FALSE; switch ( message ) { case WM_ACTIVATE: { WXWORD state, minimized; WXHWND hwnd; UnpackActivate(wParam, lParam, &state, &minimized, &hwnd); processed = HandleActivate(state, minimized != 0, hwnd); } break; case WM_COMMAND: { WXWORD id, cmd; WXHWND hwnd; UnpackCommand(wParam, lParam, &id, &hwnd, &cmd); (void)HandleCommand(id, cmd, hwnd); // even if the frame didn't process it, there is no need to try it // once again (i.e. call wxFrame::HandleCommand()) - we just dud it, // so pretend we processed the message anyhow processed = TRUE; } // always pass this message DefFrameProc(), otherwise MDI menu // commands (and sys commands - more surprizingly!) won't work MSWDefWindowProc(message, wParam, lParam); break; case WM_CREATE: m_clientWindow = OnCreateClient(); // Uses own style for client style if ( !m_clientWindow->CreateClient(this, GetWindowStyleFlag()) ) { wxLogMessage(_("Failed to create MDI parent frame.")); rc = -1; } processed = TRUE; break; case WM_ERASEBKGND: processed = TRUE; // we erase background ourselves rc = TRUE; break; case WM_MENUSELECT: { WXWORD item, flags; WXHMENU hmenu; UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu); if ( m_parentFrameActive ) { processed = HandleMenuSelect(item, flags, hmenu); } else if (m_currentChild) { processed = m_currentChild-> HandleMenuSelect(item, flags, hmenu); } } break; case WM_SIZE: // as we don't (usually) resize the MDI client to exactly fit the // client area (we put it below the toolbar, above statusbar &c), // we should not pass this one to DefFrameProc break; } if ( !processed ) rc = wxFrame::MSWWindowProc(message, wParam, lParam); return rc; } bool wxMDIParentFrame::HandleActivate(int state, bool minimized, WXHWND activate) { bool processed = FALSE; if ( wxWindow::HandleActivate(state, minimized, activate) ) { // already processed processed = TRUE; } // If this window is an MDI parent, we must also send an OnActivate message // to the current child. if ( (m_currentChild != NULL) && ((state == WA_ACTIVE) || (state == WA_CLICKACTIVE)) ) { wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_currentChild->GetId()); event.SetEventObject( m_currentChild ); if ( m_currentChild->GetEventHandler()->ProcessEvent(event) ) processed = TRUE; } return processed; } bool wxMDIParentFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd) { // In case it's e.g. a toolbar. if ( hwnd ) { wxWindow *win = wxFindWinFromHandle(hwnd); if ( win ) return win->MSWCommand(cmd, id); } // is it one of standard MDI commands? WXWPARAM wParam = 0; int msg; switch ( id ) { case IDM_WINDOWCASCADE: msg = WM_MDICASCADE; wParam = MDITILE_SKIPDISABLED; break; case IDM_WINDOWTILEHOR: wParam |= MDITILE_HORIZONTAL; // fall through case IDM_WINDOWTILEVERT: if ( !wParam ) wParam = MDITILE_VERTICAL; msg = WM_MDITILE; wParam |= MDITILE_SKIPDISABLED; break; case IDM_WINDOWICONS: msg = WM_MDIICONARRANGE; break; case IDM_WINDOWNEXT: msg = WM_MDINEXT; break; default: msg = 0; } if ( msg ) { ::SendMessage(GetWinHwnd(GetClientWindow()), msg, wParam, 0); return TRUE; } // FIXME VZ: what does this test do?? if (id >= 0xF000) { return FALSE; // Get WndProc to call default proc } if ( IsMdiCommandId(id) ) { wxWindowList::Node* node = GetChildren().GetFirst(); while ( node ) { wxWindow* child = node->GetData(); if ( child->GetHWND() ) { long childId = wxGetWindowId(child->GetHWND()); if (childId == (long)id) { ::SendMessage( GetWinHwnd(GetClientWindow()), WM_MDIACTIVATE, (WPARAM)child->GetHWND(), 0); return TRUE; } } node = node->GetNext(); } } else if ( m_parentFrameActive ) { return ProcessCommand(id); } else if ( m_currentChild ) { return m_currentChild->HandleCommand(id, cmd, hwnd); } else { // this shouldn't happen because it means that our messages are being // lost (they're not sent to the parent frame nor to the children) wxFAIL_MSG(wxT("MDI parent frame is not active, " "yet there is no active MDI child?")); } return FALSE; } long wxMDIParentFrame::MSWDefWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam) { WXHWND clientWnd; if ( GetClientWindow() ) clientWnd = GetClientWindow()->GetHWND(); else clientWnd = 0; return DefFrameProc(GetHwnd(), (HWND)clientWnd, message, wParam, lParam); } bool wxMDIParentFrame::MSWTranslateMessage(WXMSG* msg) { MSG *pMsg = (MSG *)msg; if ( m_currentChild && m_currentChild->GetHWND() && m_currentChild->MSWTranslateMessage(msg) ) { return TRUE; } if ( m_acceleratorTable.Translate(this, msg) ) { return TRUE; } if ( pMsg->message == WM_KEYDOWN || pMsg->message == WM_SYSKEYDOWN ) { if ( ::TranslateMDISysAccel(GetWinHwnd(GetClientWindow()), pMsg)) return TRUE; } return FALSE; } // =========================================================================== // wxMDIChildFrame // =========================================================================== wxMDIChildFrame::wxMDIChildFrame() { } bool wxMDIChildFrame::Create(wxMDIParentFrame *parent, wxWindowID id, const wxString& title, const wxPoint& pos, const wxSize& size, long style, const wxString& name) { m_defaultIcon = (WXHICON)(wxSTD_MDICHILDFRAME_ICON ? wxSTD_MDICHILDFRAME_ICON : wxDEFAULT_MDICHILDFRAME_ICON); SetName(name); if ( id > -1 ) m_windowId = id; else m_windowId = (int)NewControlId(); if ( parent ) { parent->AddChild(this); } wxWndHook = this; int x = pos.x; int y = pos.y; int width = size.x; int height = size.y; MDICREATESTRUCT mcs; mcs.szClass = wxMDIChildFrameClassName; mcs.szTitle = title; mcs.hOwner = wxGetInstance(); if (x > -1) mcs.x = x; else mcs.x = CW_USEDEFAULT; if (y > -1) mcs.y = y; else mcs.y = CW_USEDEFAULT; if (width > -1) mcs.cx = width; else mcs.cx = CW_USEDEFAULT; if (height > -1) mcs.cy = height; else mcs.cy = CW_USEDEFAULT; DWORD msflags = WS_OVERLAPPED | WS_CLIPCHILDREN; if (style & wxMINIMIZE_BOX) msflags |= WS_MINIMIZEBOX; if (style & wxMAXIMIZE_BOX) msflags |= WS_MAXIMIZEBOX; if (style & wxTHICK_FRAME) msflags |= WS_THICKFRAME; if (style & wxSYSTEM_MENU) msflags |= WS_SYSMENU; if ((style & wxMINIMIZE) || (style & wxICONIZE)) msflags |= WS_MINIMIZE; if (style & wxMAXIMIZE) msflags |= WS_MAXIMIZE; if (style & wxCAPTION) msflags |= WS_CAPTION; mcs.style = msflags; mcs.lParam = 0; DWORD Return = SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDICREATE, 0, (LONG)(LPSTR)&mcs); //handle = (HWND)LOWORD(Return); // Must be the DWORRD for WIN32. And in 16 bits, HIWORD=0 (says Microsoft) m_hWnd = (WXHWND)Return; wxWndHook = NULL; wxAssociateWinWithHandle((HWND) GetHWND(), this); // VZ: what's this? an act of piracy? //SetWindowLong(GetHwnd(), 0, (long)this); wxModelessWindows.Append(this); return TRUE; } wxMDIChildFrame::~wxMDIChildFrame() { MSWDestroyWindow(); } // Set the client size (i.e. leave the calculation of borders etc. // to wxWindows) void wxMDIChildFrame::DoSetClientSize(int width, int height) { HWND hWnd = GetHwnd(); RECT rect; ::GetClientRect(hWnd, &rect); RECT rect2; GetWindowRect(hWnd, &rect2); // Find the difference between the entire window (title bar and all) // and the client area; add this to the new client size to move the // window int actual_width = rect2.right - rect2.left - rect.right + width; int actual_height = rect2.bottom - rect2.top - rect.bottom + height; if (GetStatusBar()) { int sx, sy; GetStatusBar()->GetSize(&sx, &sy); actual_height += sy; } POINT point; point.x = rect2.left; point.y = rect2.top; // If there's an MDI parent, must subtract the parent's top left corner // since MoveWindow moves relative to the parent wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent(); ::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point); MoveWindow(hWnd, point.x, point.y, actual_width, actual_height, (BOOL)TRUE); wxSizeEvent event(wxSize(width, height), m_windowId); event.SetEventObject( this ); GetEventHandler()->ProcessEvent(event); } void wxMDIChildFrame::DoGetPosition(int *x, int *y) const { RECT rect; GetWindowRect(GetHwnd(), &rect); POINT point; point.x = rect.left; point.y = rect.top; // Since we now have the absolute screen coords, // if there's a parent we must subtract its top left corner wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent(); ::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point); *x = point.x; *y = point.y; } void wxMDIChildFrame::InternalSetMenuBar() { wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent(); HMENU subMenu = GetSubMenu((HMENU)parent->GetWindowMenu(), 0); InsertWindowMenu(parent->GetClientWindow(), m_hMenu, subMenu); parent->m_parentFrameActive = FALSE; } // --------------------------------------------------------------------------- // MDI operations // --------------------------------------------------------------------------- void wxMDIChildFrame::Maximize(bool maximize) { wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent(); if ( parent && parent->GetClientWindow() ) { ::SendMessage(GetWinHwnd(parent->GetClientWindow()), maximize ? WM_MDIMAXIMIZE : WM_MDIRESTORE, (WPARAM)GetHwnd(), 0); } } void wxMDIChildFrame::Restore() { wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent(); if ( parent && parent->GetClientWindow() ) { ::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIRESTORE, (WPARAM) GetHwnd(), 0); } } void wxMDIChildFrame::Activate() { wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent(); if ( parent && parent->GetClientWindow() ) { ::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIACTIVATE, (WPARAM) GetHwnd(), 0); } } // --------------------------------------------------------------------------- // MDI window proc and message handlers // --------------------------------------------------------------------------- long wxMDIChildFrame::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam) { long rc = 0; bool processed = FALSE; switch ( message ) { case WM_COMMAND: { WORD id, cmd; WXHWND hwnd; UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam, &id, &hwnd, &cmd); processed = HandleCommand(id, cmd, (WXHWND)hwnd); } break; case WM_GETMINMAXINFO: // let the default window proc calculate the size of MDI children // frames because it is based on the size of the MDI client window, // not on the values specified in wxWindow m_min/max variables return MSWDefWindowProc(message, wParam, lParam); case WM_MDIACTIVATE: { WXWORD act; WXHWND hwndAct, hwndDeact; UnpackMDIActivate(wParam, lParam, &act, &hwndAct, &hwndDeact); processed = HandleMDIActivate(act, hwndAct, hwndDeact); } // fall through case WM_MOVE: // must pass WM_MOVE to DefMDIChildProc() to recalculate MDI client // scrollbars if necessary // fall through case WM_SIZE: // must pass WM_SIZE to DefMDIChildProc(), otherwise many weird // things happen MSWDefWindowProc(message, wParam, lParam); break; case WM_SYSCOMMAND: // DefMDIChildProc handles SC_{NEXT/PREV}WINDOW here, so pass it // the message (the base class version does not) return MSWDefWindowProc(message, wParam, lParam); case WM_WINDOWPOSCHANGING: processed = HandleWindowPosChanging((LPWINDOWPOS)lParam); break; } if ( !processed ) rc = wxFrame::MSWWindowProc(message, wParam, lParam); return rc; } bool wxMDIChildFrame::HandleSize(int x, int y, WXUINT id) { HWND hwnd = GetHwnd(); if ( !hwnd || hwnd == invalidHandle ) { return FALSE; } switch (id) { case SIZEFULLSCREEN: case SIZENORMAL: m_iconized = FALSE; break; case SIZEICONIC: m_iconized = TRUE; break; } if ( !m_iconized ) { // forward WM_SIZE to status bar control #if wxUSE_NATIVE_STATUSBAR if (m_frameStatusBar && m_frameStatusBar->IsKindOf(CLASSINFO(wxStatusBar95))) { wxSizeEvent event(wxSize(x, y), m_frameStatusBar->GetId()); event.SetEventObject( m_frameStatusBar ); ((wxStatusBar95 *)m_frameStatusBar)->OnSize(event); } #endif // wxUSE_NATIVE_STATUSBAR PositionStatusBar(); PositionToolBar(); return wxWindow::HandleSize(x, y, id); } else { return FALSE; } } bool wxMDIChildFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd) { // In case it's e.g. a toolbar. if ( hwnd ) { wxWindow *win = wxFindWinFromHandle(hwnd); if (win) return win->MSWCommand(cmd, id); } if (wxCurrentPopupMenu) { wxMenu *popupMenu = wxCurrentPopupMenu; wxCurrentPopupMenu = NULL; if (popupMenu->MSWCommand(cmd, id)) return TRUE; } if (GetMenuBar() && GetMenuBar()->FindItem(id)) { ProcessCommand(id); return TRUE; } else return FALSE; return TRUE; } bool wxMDIChildFrame::HandleMDIActivate(long WXUNUSED(activate), WXHWND hwndAct, WXHWND hwndDeact) { wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent(); HMENU menuToSet = 0; bool activated; if ( m_hWnd == hwndAct ) { activated = TRUE; parent->m_currentChild = this; HMENU child_menu = (HMENU)GetWinMenu(); if ( child_menu ) { parent->m_parentFrameActive = FALSE; menuToSet = child_menu; } } else if ( m_hWnd == hwndDeact ) { wxASSERT_MSG( parent->m_currentChild == this, wxT("can't deactivate MDI child which wasn't active!") ); activated = FALSE; parent->m_currentChild = NULL; HMENU parent_menu = (HMENU)parent->GetWinMenu(); if ( parent_menu ) { parent->m_parentFrameActive = TRUE; menuToSet = parent_menu; } } else { // we have nothing to with it return FALSE; } if ( menuToSet ) { HMENU subMenu = GetSubMenu((HMENU) parent->GetWindowMenu(), 0); MDISetMenu(parent->GetClientWindow(), menuToSet, subMenu); } wxActivateEvent event(wxEVT_ACTIVATE, activated, m_windowId); event.SetEventObject( this ); return GetEventHandler()->ProcessEvent(event); } bool wxMDIChildFrame::HandleWindowPosChanging(void *pos) { WINDOWPOS *lpPos = (WINDOWPOS *)pos; #if defined(__WIN95__) if (!(lpPos->flags & SWP_NOSIZE)) { RECT rectClient; DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE); DWORD dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE); if (ResetWindowStyle((void *) & rectClient) && (dwStyle & WS_MAXIMIZE)) { ::AdjustWindowRectEx(&rectClient, dwStyle, FALSE, dwExStyle); lpPos->x = rectClient.left; lpPos->y = rectClient.top; lpPos->cx = rectClient.right - rectClient.left; lpPos->cy = rectClient.bottom - rectClient.top; } wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent(); if (pFrameWnd && pFrameWnd->GetToolBar()) { pFrameWnd->GetToolBar()->Refresh(); } } #endif // Win95 return FALSE; } // --------------------------------------------------------------------------- // MDI specific message translation/preprocessing // --------------------------------------------------------------------------- long wxMDIChildFrame::MSWDefWindowProc(WXUINT message, WXUINT wParam, WXLPARAM lParam) { return DefMDIChildProc(GetHwnd(), (UINT)message, (WPARAM)wParam, (LPARAM)lParam); } bool wxMDIChildFrame::MSWTranslateMessage(WXMSG* msg) { return m_acceleratorTable.Translate(GetParent(), msg); } // --------------------------------------------------------------------------- // misc // --------------------------------------------------------------------------- void wxMDIChildFrame::MSWDestroyWindow() { MSWDetachWindowMenu(); invalidHandle = GetHwnd(); wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent(); // Must make sure this handle is invalidated (set to NULL) since all sorts // of things could happen after the child client is destroyed, but before // the wxFrame is destroyed. HWND oldHandle = (HWND)GetHWND(); SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIDESTROY, (WPARAM)oldHandle, 0); invalidHandle = 0; if (m_hMenu) { ::DestroyMenu((HMENU) m_hMenu); m_hMenu = 0; } m_hWnd = 0; } // Change the client window's extended style so we don't get a client edge // style when a child is maximised (a double border looks silly.) bool wxMDIChildFrame::ResetWindowStyle(void *vrect) { #if defined(__WIN95__) RECT *rect = (RECT *)vrect; wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent(); wxMDIChildFrame* pChild = pFrameWnd->GetActiveChild(); if (!pChild || (pChild == this)) { DWORD dwStyle = ::GetWindowLong(GetWinHwnd(pFrameWnd->GetClientWindow()), GWL_EXSTYLE); DWORD dwThisStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE); DWORD dwNewStyle = dwStyle; if (pChild != NULL && (dwThisStyle & WS_MAXIMIZE)) dwNewStyle &= ~(WS_EX_CLIENTEDGE); else dwNewStyle |= WS_EX_CLIENTEDGE; if (dwStyle != dwNewStyle) { HWND hwnd = GetWinHwnd(pFrameWnd->GetClientWindow()); ::RedrawWindow(hwnd, NULL, NULL, RDW_INVALIDATE | RDW_ALLCHILDREN); ::SetWindowLong(hwnd, GWL_EXSTYLE, dwNewStyle); ::SetWindowPos(hwnd, NULL, 0, 0, 0, 0, SWP_FRAMECHANGED | SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_NOCOPYBITS); if (rect) ::GetClientRect(hwnd, rect); return TRUE; } } #endif // Win95 return FALSE; } // =========================================================================== // wxMDIClientWindow: the window of predefined (by Windows) class which // contains the child frames // =========================================================================== bool wxMDIClientWindow::CreateClient(wxMDIParentFrame *parent, long style) { m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE); CLIENTCREATESTRUCT ccs; m_windowStyle = style; m_parent = parent; ccs.hWindowMenu = (HMENU)parent->GetWindowMenu(); ccs.idFirstChild = wxFIRST_MDI_CHILD; DWORD msStyle = WS_VISIBLE | WS_CHILD | WS_CLIPCHILDREN; if ( style & wxHSCROLL ) msStyle |= WS_HSCROLL; if ( style & wxVSCROLL ) msStyle |= WS_VSCROLL; #if defined(__WIN95__) DWORD exStyle = WS_EX_CLIENTEDGE; #else DWORD exStyle = 0; #endif wxWndHook = this; m_hWnd = (WXHWND)::CreateWindowEx ( exStyle, wxT("MDICLIENT"), NULL, msStyle, 0, 0, 0, 0, GetWinHwnd(parent), NULL, wxGetInstance(), (LPSTR)(LPCLIENTCREATESTRUCT)&ccs); if ( !m_hWnd ) { wxLogLastError("CreateWindowEx(MDI client)"); return FALSE; } SubclassWin(m_hWnd); wxWndHook = NULL; return TRUE; } // Explicitly call default scroll behaviour void wxMDIClientWindow::OnScroll(wxScrollEvent& event) { // Note: for client windows, the scroll position is not set in // WM_HSCROLL, WM_VSCROLL, so we can't easily determine what // scroll position we're at. // This makes it hard to paint patterns or bitmaps in the background, // and have the client area scrollable as well. if ( event.GetOrientation() == wxHORIZONTAL ) m_scrollX = event.GetPosition(); // Always returns zero! else m_scrollY = event.GetPosition(); // Always returns zero! event.Skip(); } // --------------------------------------------------------------------------- // non member functions // --------------------------------------------------------------------------- static void MDISetMenu(wxWindow *win, HMENU hmenuFrame, HMENU hmenuWindow) { ::SendMessage(GetWinHwnd(win), WM_MDISETMENU, #ifdef __WIN32__ (WPARAM)hmenuFrame, (LPARAM)hmenuWindow); #else 0, MAKELPARAM(hmenuFrame, hmenuWindow)); #endif // update menu bar of the parent window wxWindow *parent = win->GetParent(); wxCHECK_RET( parent, wxT("MDI client without parent frame? weird...") ); ::DrawMenuBar(GetWinHwnd(parent)); } static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu) { // Try to insert Window menu in front of Help, otherwise append it. HMENU hmenu = (HMENU)menu; int N = GetMenuItemCount(hmenu); bool success = FALSE; for ( int i = 0; i < N; i++ ) { wxChar buf[256]; int chars = GetMenuString(hmenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION); if ( chars == 0 ) { wxLogLastError(wxT("GetMenuString")); continue; } if ( wxStripMenuCodes(wxString(buf)).IsSameAs(wxT("Help")) ) { success = TRUE; ::InsertMenu(hmenu, i, MF_BYPOSITION | MF_POPUP | MF_STRING, (UINT)subMenu, wxT("&Window")); break; } } if ( !success ) { ::AppendMenu(hmenu, MF_POPUP, (UINT)subMenu, wxT("&Window")); } MDISetMenu(win, hmenu, subMenu); } static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam, WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact) { #ifdef __WIN32__ *activate = TRUE; *hwndAct = (WXHWND)lParam; *hwndDeact = (WXHWND)wParam; #else // Win16 *activate = (WXWORD)wParam; *hwndAct = (WXHWND)LOWORD(lParam); *hwndDeact = (WXHWND)HIWORD(lParam); #endif // Win32/Win16 }