X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dfc5454127ac2195e10deebb216d82c674e757df..bd947cc9f002826c01e1413e36c5ae99fc6124a8:/src/msw/dialog.cpp diff --git a/src/msw/dialog.cpp b/src/msw/dialog.cpp index a55bda8b5c..94cf00190a 100644 --- a/src/msw/dialog.cpp +++ b/src/msw/dialog.cpp @@ -1,604 +1,560 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: dialog.cpp +// Name: src/msw/dialog.cpp // Purpose: wxDialog class // Author: Julian Smart // Modified by: // Created: 01/02/97 // RCS-ID: $Id$ -// Copyright: (c) Julian Smart and Markus Holzem +// Copyright: (c) Julian Smart // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "dialog.h" +// ============================================================================ +// declarations +// ============================================================================ + +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) + #pragma implementation "dialog.h" #endif // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif #ifndef WX_PRECOMP -#include "wx/dialog.h" -#include "wx/utils.h" -#include "wx/frame.h" -#include "wx/app.h" -#include "wx/settings.h" + #include "wx/dialog.h" + #include "wx/utils.h" + #include "wx/frame.h" + #include "wx/app.h" + #include "wx/settings.h" + #include "wx/intl.h" + #include "wx/log.h" #endif #include "wx/msw/private.h" +#include "wx/log.h" +#include "wx/evtloop.h" +#include "wx/ptr_scpd.h" -#if USE_COMMON_DIALOGS -#include +#if wxUSE_COMMON_DIALOGS && !defined(__WXMICROWIN__) + #include #endif +// ---------------------------------------------------------------------------- +// constants +// ---------------------------------------------------------------------------- + +// default dialog pos and size + #define wxDIALOG_DEFAULT_X 300 #define wxDIALOG_DEFAULT_Y 300 -// Lists to keep track of windows, so we can disable/enable them -// for modal dialogs -wxList wxModalDialogs; -wxList wxModelessWindows; // Frames and modeless dialogs -extern wxList wxPendingDelete; - -#if !USE_SHARED_LIBRARY -IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxPanel) - -BEGIN_EVENT_TABLE(wxDialog, wxPanel) - EVT_BUTTON(wxID_OK, wxDialog::OnOK) - EVT_BUTTON(wxID_APPLY, wxDialog::OnApply) - EVT_BUTTON(wxID_CANCEL, wxDialog::OnCancel) - EVT_CHAR_HOOK(wxDialog::OnCharHook) - EVT_SYS_COLOUR_CHANGED(wxDialog::OnSysColourChanged) - EVT_CLOSE(wxDialog::OnCloseWindow) -END_EVENT_TABLE() +#define wxDIALOG_DEFAULT_WIDTH 500 +#define wxDIALOG_DEFAULT_HEIGHT 500 + +// ---------------------------------------------------------------------------- +// wxWin macros +// ---------------------------------------------------------------------------- + +#if wxUSE_EXTENDED_RTTI +WX_DEFINE_FLAGS( wxDialogStyle ) + +wxBEGIN_FLAGS( wxDialogStyle ) + // new style border flags, we put them first to + // use them for streaming out + wxFLAGS_MEMBER(wxBORDER_SIMPLE) + wxFLAGS_MEMBER(wxBORDER_SUNKEN) + wxFLAGS_MEMBER(wxBORDER_DOUBLE) + wxFLAGS_MEMBER(wxBORDER_RAISED) + wxFLAGS_MEMBER(wxBORDER_STATIC) + wxFLAGS_MEMBER(wxBORDER_NONE) + + // old style border flags + wxFLAGS_MEMBER(wxSIMPLE_BORDER) + wxFLAGS_MEMBER(wxSUNKEN_BORDER) + wxFLAGS_MEMBER(wxDOUBLE_BORDER) + wxFLAGS_MEMBER(wxRAISED_BORDER) + wxFLAGS_MEMBER(wxSTATIC_BORDER) + wxFLAGS_MEMBER(wxNO_BORDER) + + // standard window styles + wxFLAGS_MEMBER(wxTAB_TRAVERSAL) + wxFLAGS_MEMBER(wxCLIP_CHILDREN) + + // dialog styles + wxFLAGS_MEMBER(wxDIALOG_MODAL) + wxFLAGS_MEMBER(wxDIALOG_MODELESS) + wxFLAGS_MEMBER(wxNO_3D) + wxFLAGS_MEMBER(wxWS_EX_VALIDATE_RECURSIVELY) + wxFLAGS_MEMBER(wxSTAY_ON_TOP) + wxFLAGS_MEMBER(wxCAPTION) + wxFLAGS_MEMBER(wxTHICK_FRAME) + wxFLAGS_MEMBER(wxSYSTEM_MENU) + wxFLAGS_MEMBER(wxRESIZE_BORDER) + wxFLAGS_MEMBER(wxRESIZE_BOX) + wxFLAGS_MEMBER(wxCLOSE_BOX) + wxFLAGS_MEMBER(wxMAXIMIZE_BOX) + wxFLAGS_MEMBER(wxMINIMIZE_BOX) +wxEND_FLAGS( wxDialogStyle ) + +IMPLEMENT_DYNAMIC_CLASS_XTI(wxDialog, wxTopLevelWindow,"wx/dialog.h") + +wxBEGIN_PROPERTIES_TABLE(wxDialog) + wxPROPERTY( Title,wxString, SetTitle, GetTitle, wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) + wxPROPERTY_FLAGS( WindowStyle , wxDialogStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style +wxEND_PROPERTIES_TABLE() + +wxBEGIN_HANDLERS_TABLE(wxDialog) +wxEND_HANDLERS_TABLE() + +wxCONSTRUCTOR_6( wxDialog , wxWindow* , Parent , wxWindowID , Id , wxString , Title , wxPoint , Position , wxSize , Size , long , WindowStyle) +#else +IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxTopLevelWindow) #endif -long wxDialog::MSWDefWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) -{ - return ::CallWindowProc(CASTWNDPROC m_oldWndProc, (HWND) GetHWND(), (UINT) nMsg, (WPARAM) wParam, (LPARAM) lParam); -} +BEGIN_EVENT_TABLE(wxDialog, wxDialogBase) + EVT_BUTTON(wxID_OK, wxDialog::OnOK) + EVT_BUTTON(wxID_APPLY, wxDialog::OnApply) + EVT_BUTTON(wxID_CANCEL, wxDialog::OnCancel) -bool wxDialog::MSWProcessMessage(WXMSG* pMsg) -{ - return (::IsDialogMessage((HWND) GetHWND(), (MSG*)pMsg) != 0); -} + EVT_CHAR_HOOK(wxDialog::OnCharHook) -bool wxDialog::MSWOnClose(void) -{ - return Close(); -} + EVT_SYS_COLOUR_CHANGED(wxDialog::OnSysColourChanged) -wxDialog::wxDialog(void) -{ - m_isShown = FALSE; - m_modalShowing = FALSE; + EVT_CLOSE(wxDialog::OnCloseWindow) +END_EVENT_TABLE() - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); - SetDefaultBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); -} +// ---------------------------------------------------------------------------- +// wxDialogModalData +// ---------------------------------------------------------------------------- -bool wxDialog::Create(wxWindow *parent, wxWindowID id, - const wxString& title, - const wxPoint& pos, - const wxSize& size, - long style, - const wxString& name) +// this is simply a container for any data we need to implement modality which +// allows us to avoid changing wxDialog each time the implementation changes +class wxDialogModalData { - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); - SetDefaultBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); - SetName(name); - - if (!parent) - wxTopLevelWindows.Append(this); +public: + wxDialogModalData(wxDialog *dialog) : m_evtLoop(dialog) { } -// windowFont = wxTheFontList->FindOrCreateFont(11, wxSWISS, wxNORMAL, wxNORMAL); - - if (parent) parent->AddChild(this); - - if ( id == -1 ) - m_windowId = (int)NewControlId(); - else - m_windowId = id; - - int x = pos.x; - int y = pos.y; - int width = size.x; - int height = size.y; + void RunLoop() + { + m_evtLoop.Run(); + } - if (x < 0) x = wxDIALOG_DEFAULT_X; - if (y < 0) y = wxDIALOG_DEFAULT_Y; + void ExitLoop() + { + m_evtLoop.Exit(); + } - m_windowStyle = style; +private: + wxModalEventLoop m_evtLoop; +}; - m_isShown = FALSE; - m_modalShowing = FALSE; +wxDEFINE_TIED_SCOPED_PTR_TYPE(wxDialogModalData); - if (width < 0) - width = 500; - if (height < 0) - height = 500; +// ============================================================================ +// implementation +// ============================================================================ - WXDWORD extendedStyle = MakeExtendedStyle(m_windowStyle); - if (m_windowStyle & wxSTAY_ON_TOP) - extendedStyle |= WS_EX_TOPMOST; +// ---------------------------------------------------------------------------- +// wxDialog construction +// ---------------------------------------------------------------------------- - // Allows creation of dialogs with & without captions under MSWindows - if(style & wxCAPTION){ - MSWCreate(m_windowId, (wxWindow *)parent, NULL, this, NULL, x, y, width, height, 0, "wxCaptionDialog", - extendedStyle); - } - else{ - MSWCreate(m_windowId, (wxWindow *)parent, NULL, this, NULL, x, y, width, height, 0, "wxNoCaptionDialog", - extendedStyle); - } +void wxDialog::Init() +{ + m_oldFocus = (wxWindow *)NULL; - SubclassWin(GetHWND()); + m_isShown = FALSE; - SetWindowText((HWND) GetHWND(), (const char *)title); - SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT)); + m_modalData = NULL; - return TRUE; + SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)); } -void wxDialog::SetModal(bool flag) +bool wxDialog::Create(wxWindow *parent, + wxWindowID id, + const wxString& title, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name) { - if ( flag ) - m_windowStyle |= wxDIALOG_MODAL ; - else - if ( m_windowStyle & wxDIALOG_MODAL ) - m_windowStyle -= wxDIALOG_MODAL ; - - wxModelessWindows.DeleteObject(this); - if (!flag) - wxModelessWindows.Append(this); -} + Init(); -wxDialog::~wxDialog() -{ - m_isBeingDeleted = TRUE; + SetExtraStyle(GetExtraStyle() | wxTOPLEVEL_EX_DIALOG); - wxTopLevelWindows.DeleteObject(this); + // save focus before doing anything which can potentially change it + m_oldFocus = FindFocus(); - if (m_modalShowing) - { - Show(FALSE); - // For some reason, wxWindows can activate another task altogether - // when a frame is destroyed after a modal dialog has been invoked. - // Try to bring the parent to the top. - // dfgg: I moved this following line from end of function - - // must not call if another window is on top!! - // This can often happen with Close() and delayed deleting - if (GetParent() && GetParent()->GetHWND()) - ::BringWindowToTop((HWND) GetParent()->GetHWND()); - } + // All dialogs should really have this style + style |= wxTAB_TRAVERSAL; - m_modalShowing = FALSE; - if ( GetHWND() ) - ShowWindow((HWND) GetHWND(), SW_HIDE); + if ( !wxTopLevelWindow::Create(parent, id, title, pos, size, style, name) ) + return FALSE; - if ( (GetWindowStyleFlag() & wxDIALOG_MODAL) != wxDIALOG_MODAL ) - wxModelessWindows.DeleteObject(this); + SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); - UnsubclassWin(); + return TRUE; +} - // If this is the last top-level window, exit. - if (wxTheApp && (wxTopLevelWindows.Number() == 0)) - { - wxTheApp->SetTopWindow(NULL); +void wxDialog::SetModal(bool flag) +{ + if ( flag ) + { + m_windowStyle |= wxDIALOG_MODAL; - if (wxTheApp->GetExitOnFrameDelete()) + wxModelessWindows.DeleteObject(this); + } + else { - PostQuitMessage(0); + m_windowStyle &= ~wxDIALOG_MODAL; + + wxModelessWindows.Append(this); } - } } +wxDialog::~wxDialog() +{ + m_isBeingDeleted = TRUE; + + // this will also reenable all the other windows for a modal dialog + Show(FALSE); +} + +// ---------------------------------------------------------------------------- +// kbd handling +// ---------------------------------------------------------------------------- + // By default, pressing escape cancels the dialog void wxDialog::OnCharHook(wxKeyEvent& event) { - if (GetHWND()) - { - if (event.m_keyCode == WXK_ESCAPE) + if (GetHWND()) { - // Behaviour changed in 2.0: we'll send a Cancel message - // to the dialog instead of Close. - wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL); - cancelEvent.SetEventObject( this ); - GetEventHandler()->ProcessEvent(cancelEvent); + // "Esc" works as an accelerator for the "Cancel" button, but it + // shouldn't close the dialog which doesn't have any cancel button + if ( (event.m_keyCode == WXK_ESCAPE) && FindWindow(wxID_CANCEL) ) + { + wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL); + cancelEvent.SetEventObject( this ); + GetEventHandler()->ProcessEvent(cancelEvent); - return; + // ensure that there is another message for this window so the + // ShowModal loop will exit and won't get stuck in GetMessage(). + ::PostMessage(GetHwnd(), WM_NULL, 0, 0); + + return; + } } - } - // We didn't process this event. - event.Skip(); -} -void wxDialog::OnPaint(wxPaintEvent& event) -{ - // No: if you call the default procedure, it makes - // the following painting code not work. -// wxWindow::OnPaint(event); + // We didn't process this event. + event.Skip(); } -void wxDialog::Fit(void) -{ - wxWindow::Fit(); -} +// ---------------------------------------------------------------------------- +// showing the dialogs +// ---------------------------------------------------------------------------- -void wxDialog::Iconize(bool WXUNUSED(iconize)) +bool wxDialog::IsModal() const { - // Windows dialog boxes can't be iconized + return (GetWindowStyleFlag() & wxDIALOG_MODAL) != 0; } -bool wxDialog::IsIconized(void) const +bool wxDialog::IsModalShowing() const { - return FALSE; + return m_modalData != NULL; } -void wxDialog::SetSize(int x, int y, int width, int height, int WXUNUSED(sizeFlags)) +wxWindow *wxDialog::FindSuitableParent() const { - wxWindow::SetSize(x, y, width, height); + // first try to use the currently active window + HWND hwndFg = ::GetForegroundWindow(); + wxWindow *parent = hwndFg ? wxFindWinFromHandle((WXHWND)hwndFg) + : NULL; + if ( !parent ) + { + // next try the main app window + parent = wxTheApp->GetTopWindow(); + } + + // finally, check if the parent we found is really suitable + if ( !parent || parent == (wxWindow *)this || !parent->IsShown() ) + { + // don't use this one + parent = NULL; + } + + return parent; } -void wxDialog::SetClientSize(int width, int height) +void wxDialog::DoShowModal() { - HWND hWnd = (HWND) GetHWND(); - RECT rect; - GetClientRect(hWnd, &rect); + wxCHECK_RET( !IsModalShowing(), _T("DoShowModal() called twice") ); + wxCHECK_RET( IsModal(), _T("can't DoShowModal() modeless dialog") ); - RECT rect2; - GetWindowRect(hWnd, &rect2); + wxWindow *parent = GetParent(); - // 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; + wxWindow* oldFocus = m_oldFocus; - MoveWindow(hWnd, rect2.left, rect2.top, actual_width, actual_height, TRUE); + // We have to remember the HWND because we need to check + // the HWND still exists (oldFocus can be garbage when the dialog + // exits, if it has been destroyed) + HWND hwndOldFocus = 0; + if (oldFocus) + hwndOldFocus = (HWND) oldFocus->GetHWND(); - wxSizeEvent event(wxSize(actual_width, actual_height), m_windowId); - event.SetEventObject( this ); - GetEventHandler()->ProcessEvent(event); -} - -void wxDialog::GetPosition(int *x, int *y) const -{ - HWND hWnd = (HWND) GetHWND(); - RECT rect; - GetWindowRect(hWnd, &rect); + // remember where the focus was + if ( !oldFocus ) + { + oldFocus = parent; + if ( parent ) + hwndOldFocus = GetHwndOf(parent); + } - *x = rect.left; - *y = rect.top; -} + // enter the modal loop + { + wxDialogModalDataTiedPtr modalData(&m_modalData, + new wxDialogModalData(this)); + modalData->RunLoop(); + } -bool wxDialog::IsShown(void) const -{ - return m_isShown; + // and restore focus + // Note that this code MUST NOT access the dialog object's data + // in case the object has been deleted (which will be the case + // for a modal dialog that has been destroyed before calling EndModal). + if ( oldFocus && (oldFocus != this) && ::IsWindow(hwndOldFocus)) + { + // This is likely to prove that the object still exists + if (wxFindWinFromHandle((WXHWND) hwndOldFocus) == oldFocus) + oldFocus->SetFocus(); + } } bool wxDialog::Show(bool show) { - m_isShown = show; - - if (show) - InitDialog(); - - bool modal = ((GetWindowStyleFlag() & wxDIALOG_MODAL) == wxDIALOG_MODAL) ; - -#if WXGARBAGE_COLLECTION_ON /* MATTHEW: GC */ - if (!modal) { - if (show) { - if (!wxModelessWindows.Member(this)) - wxModelessWindows.Append(this); - } else - wxModelessWindows.DeleteObject(this); - } - if (show) { - if (!wxTopLevelWindows.Member(this)) - wxTopLevelWindows.Append(this); - } else - wxTopLevelWindows.DeleteObject(this); -#endif - - if (modal) - { - if (show) + if ( !show && m_modalData ) { - m_hwndOldFocus = (WXHWND)::GetFocus(); - - wxList DisabledWindows; - if (m_modalShowing) - { - BringWindowToTop((HWND) GetHWND()); - return TRUE; - } - - m_modalShowing = TRUE; - wxNode *node = wxModalDialogs.First(); - while (node) - { - wxDialog *box = (wxDialog *)node->Data(); - if (box != this) - ::EnableWindow((HWND) box->GetHWND(), FALSE); - node = node->Next(); - } - node = wxModelessWindows.First(); - while (node) - { - wxWindow *win = (wxWindow *)node->Data(); - if (::IsWindowEnabled((HWND) win->GetHWND())) - { - ::EnableWindow((HWND) win->GetHWND(), FALSE); - DisabledWindows.Append(win); - } - node = node->Next(); - } - - ShowWindow((HWND) GetHWND(), SW_SHOW); - EnableWindow((HWND) GetHWND(), TRUE); - BringWindowToTop((HWND) GetHWND()); - - if (!wxModalDialogs.Member(this)) - wxModalDialogs.Append(this); - - MSG msg; - // Must test whether this dialog still exists: we may not process - // a message before the deletion. - while (wxModalDialogs.Member(this) && m_modalShowing && GetMessage(&msg, NULL, 0, 0)) - { - if (m_acceleratorTable.Ok() && - ::TranslateAccelerator((HWND) GetHWND(), (HACCEL) m_acceleratorTable.GetHACCEL(), &msg)) - { - // Have processed the message - } - else if (!IsDialogMessage((HWND) GetHWND(), &msg)) - { - TranslateMessage(&msg); - DispatchMessage(&msg); - } - if (m_modalShowing && !::PeekMessage(&msg, 0, 0, 0, PM_NOREMOVE)) - // dfgg: NB MUST test m_modalShowing again as the message loop could have triggered - // a Show(FALSE) in the mean time!!! - // Without the test, we might delete the dialog before the end of modal showing. - { - while (wxTheApp->ProcessIdle() && m_modalShowing) - { - // Keep going until we decide we've done enough - } - } - } - // dfgg: now must specifically re-enable all other app windows that we disabled earlier - node=DisabledWindows.First(); - while(node) { - wxWindow* win = (wxWindow*) node->Data(); - HWND hWnd = (HWND) win->GetHWND(); - if (::IsWindow(hWnd) && (wxModalDialogs.Member(win) || wxModelessWindows.Member(win) )) - ::EnableWindow(hWnd,TRUE); - node=node->Next(); - } + // we need to do this before calling wxDialogBase version because if we + // had disabled other app windows, they must be reenabled right now as + // if they stay disabled Windows will activate another window (one + // which is enabled, anyhow) when we're hidden in the base class Show() + // and we will lose activation + m_modalData->ExitLoop(); } - else // !show + + // ShowModal() may be called for already shown dialog + if ( !wxDialogBase::Show(show) && !(show && IsModal()) ) { - ::SetFocus((HWND)m_hwndOldFocus); - - wxModalDialogs.DeleteObject(this); - - wxNode *last = wxModalDialogs.Last(); - - // If there's still a modal dialog active, we - // enable it, else we enable all modeless windows - if (last) - { - wxDialog *box = (wxDialog *)last->Data(); - HWND hwnd = (HWND) box->GetHWND(); - if (box->m_winEnabled) - EnableWindow(hwnd, TRUE); - BringWindowToTop(hwnd); - } - else - { - wxNode *node = wxModelessWindows.First(); - while (node) - { - wxWindow *win = (wxWindow *)node->Data(); - HWND hwnd = (HWND) win->GetHWND(); - // Only enable again if not user-disabled. - if (win->IsUserEnabled()) - EnableWindow(hwnd, TRUE); - node = node->Next(); - } - } - // Try to highlight the correct window (the parent) - HWND hWndParent = 0; - if (GetParent()) - { - hWndParent = (HWND) GetParent()->GetHWND(); - if (hWndParent) - ::BringWindowToTop(hWndParent); - } - ShowWindow((HWND) GetHWND(), SW_HIDE); - m_modalShowing = FALSE; + // nothing to do + return FALSE; } - } - else // !modal - { - if (show) + + if ( show ) { - ShowWindow((HWND) GetHWND(), SW_SHOW); - BringWindowToTop((HWND) GetHWND()); + // dialogs don't get WM_SIZE message after creation unlike most (all?) + // other windows and so could start their life non laid out correctly + // if we didn't call Layout() from here + // + // NB: normally we should call it just the first time but doing it + // every time is simpler than keeping a flag + Layout(); + + // this usually will result in TransferDataToWindow() being called + InitDialog(); } - else + + if ( show && IsModal() ) { - // Try to highlight the correct window (the parent) - HWND hWndParent = 0; - if (GetParent()) - { - hWndParent = (HWND) GetParent()->GetHWND(); - if (hWndParent) - ::BringWindowToTop(hWndParent); - } - ShowWindow((HWND) GetHWND(), SW_HIDE); + // modal dialog needs a parent window, so try to find one + if ( !GetParent() ) + { + m_parent = FindSuitableParent(); + } + + DoShowModal(); } - } - return TRUE; -} -void wxDialog::SetTitle(const wxString& title) -{ - SetWindowText((HWND) GetHWND(), (const char *)title); + return TRUE; } -wxString wxDialog::GetTitle(void) const +void wxDialog::Raise() { - GetWindowText((HWND) GetHWND(), wxBuffer, 1000); - return wxString(wxBuffer); + ::SetForegroundWindow(GetHwnd()); } -void wxDialog::Centre(int direction) +// a special version for Show(TRUE) for modal dialogs which returns return code +int wxDialog::ShowModal() { - int x_offset,y_offset ; - int display_width, display_height; - int width, height, x, y; - wxWindow *parent = GetParent(); - if ((direction & wxCENTER_FRAME) && parent) - { - parent->GetPosition(&x_offset,&y_offset) ; - parent->GetSize(&display_width,&display_height) ; - } - else - { - wxDisplaySize(&display_width, &display_height); - x_offset = 0 ; - y_offset = 0 ; - } - - GetSize(&width, &height); - GetPosition(&x, &y); - - if (direction & wxHORIZONTAL) - x = (int)((display_width - width)/2); - if (direction & wxVERTICAL) - y = (int)((display_height - height)/2); + if ( !IsModal() ) + { + SetModal(TRUE); + } - SetSize(x+x_offset, y+y_offset, width, height); -} + Show(TRUE); -// Replacement for Show(TRUE) for modal dialogs - returns return code -int wxDialog::ShowModal(void) -{ - m_windowStyle |= wxDIALOG_MODAL; - Show(TRUE); - return GetReturnCode(); + return GetReturnCode(); } +// NB: this function (surprizingly) may be called for both modal and modeless +// dialogs and should work for both of them void wxDialog::EndModal(int retCode) { - SetReturnCode(retCode); - Show(FALSE); -} + SetReturnCode(retCode); -// Define for each class of dialog and control -WXHBRUSH wxDialog::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, - WXUINT message, WXWPARAM wParam, WXLPARAM lParam) -{ -#if CTL3D - HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam); - return (WXHBRUSH) hbrush; -#else - return 0; -#endif + Show(FALSE); } +// ---------------------------------------------------------------------------- +// wxWin event handlers +// ---------------------------------------------------------------------------- + // Standard buttons -void wxDialog::OnOK(wxCommandEvent& event) +void wxDialog::OnOK(wxCommandEvent& WXUNUSED(event)) { if ( Validate() && TransferDataFromWindow() ) { - if ( IsModal() ) - EndModal(wxID_OK); - else - { - SetReturnCode(wxID_OK); - this->Show(FALSE); - } + EndModal(wxID_OK); } } -void wxDialog::OnApply(wxCommandEvent& event) +void wxDialog::OnApply(wxCommandEvent& WXUNUSED(event)) { - if (Validate()) - TransferDataFromWindow(); - // TODO probably need to disable the Apply button until things change again + if ( Validate() ) + TransferDataFromWindow(); + + // TODO probably need to disable the Apply button until things change again } -void wxDialog::OnCancel(wxCommandEvent& event) +void wxDialog::OnCancel(wxCommandEvent& WXUNUSED(event)) { - if ( IsModal() ) - EndModal(wxID_CANCEL); - else - { - SetReturnCode(wxID_CANCEL); - this->Show(FALSE); - } + EndModal(wxID_CANCEL); } -bool wxDialog::OnClose(void) +void wxDialog::OnCloseWindow(wxCloseEvent& WXUNUSED(event)) { - // Behaviour changed in 2.0: we'll send a Cancel message by default, - // which may close the dialog. - // Check for looping if the Cancel event handler calls Close() - + // We'll send a Cancel message by default, which may close the dialog. + // Check for looping if the Cancel event handler calls Close(). + + // Note that if a cancel button and handler aren't present in the dialog, + // nothing will happen when you close the dialog via the window manager, or + // via Close(). We wouldn't want to destroy the dialog by default, since + // the dialog may have been created on the stack. However, this does mean + // that calling dialog->Close() won't delete the dialog unless the handler + // for wxID_CANCEL does so. So use Destroy() if you want to be sure to + // destroy the dialog. The default OnCancel (above) simply ends a modal + // dialog, and hides a modeless dialog. + + // VZ: this is horrible and MT-unsafe. Can't we reuse some of these global + // lists here? don't dare to change it now, but should be done later! static wxList closing; if ( closing.Member(this) ) - return FALSE; + return; closing.Append(this); - wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL); - cancelEvent.SetEventObject( this ); - GetEventHandler()->ProcessEvent(cancelEvent); + wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL); + cancelEvent.SetEventObject( this ); + GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog closing.DeleteObject(this); +} - return FALSE; +void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event)) +{ +#if wxUSE_CTL3D + Ctl3dColorChange(); +#else + SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)); + Refresh(); +#endif } -void wxDialog::OnCloseWindow(wxCloseEvent& event) +// --------------------------------------------------------------------------- +// dialog window proc +// --------------------------------------------------------------------------- + +long wxDialog::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam) { - // Compatibility - if ( GetEventHandler()->OnClose() || event.GetForce()) + long rc = 0; + bool processed = FALSE; + + switch ( message ) { - this->Destroy(); + case WM_CLOSE: + // if we can't close, tell the system that we processed the + // message - otherwise it would close us + processed = !Close(); + break; + + case WM_SIZE: + // the Windows dialogs unfortunately are not meant to be resizeable + // at all and their standard class doesn't include CS_[VH]REDRAW + // styles which means that the window is not refreshed properly + // after the resize and no amount of WS_CLIPCHILDREN/SIBLINGS can + // help with it - so we have to refresh it manually which certainly + // creates flicker but at least doesn't show garbage on the screen + rc = wxWindow::MSWWindowProc(message, wParam, lParam); + processed = TRUE; + if ( HasFlag(wxFULL_REPAINT_ON_RESIZE) ) + { + ::InvalidateRect(GetHwnd(), NULL, FALSE /* erase bg */); + } + break; + +#ifndef __WXMICROWIN__ + case WM_SETCURSOR: + // we want to override the busy cursor for modal dialogs: + // typically, wxBeginBusyCursor() is called and then a modal dialog + // is shown, but the modal dialog shouldn't have hourglass cursor + if ( IsModalShowing() && wxIsBusy() ) + { + // set our cursor for all windows (but see below) + wxCursor cursor = m_cursor; + if ( !cursor.Ok() ) + cursor = wxCURSOR_ARROW; + + ::SetCursor(GetHcursorOf(cursor)); + + // in any case, stop here and don't let wxWindow process this + // message (it would set the busy cursor) + processed = TRUE; + + // but return FALSE to tell the child window (if the event + // comes from one of them and not from ourselves) that it can + // set its own cursor if it has one: thus, standard controls + // (e.g. text ctrl) still have correct cursors in a dialog + // invoked while wxIsBusy() + rc = FALSE; + } + break; +#endif // __WXMICROWIN__ } -} -// Destroy the window (delayed, if a managed window) -bool wxDialog::Destroy(void) -{ - if (!wxPendingDelete.Member(this)) - wxPendingDelete.Append(this); - return TRUE; -} + if ( !processed ) + rc = wxWindow::MSWWindowProc(message, wParam, lParam); -void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& event) -{ -#if CTL3D - Ctl3dColorChange(); -#else - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); - SetDefaultBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); - Refresh(); -#endif + return rc; } -long wxDialog::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam) +#if wxUSE_CTL3D + +// Define for each class of dialog and control +WXHBRUSH wxDialog::OnCtlColor(WXHDC WXUNUSED(pDC), + WXHWND WXUNUSED(pWnd), + WXUINT WXUNUSED(nCtlColor), + WXUINT message, + WXWPARAM wParam, + WXLPARAM lParam) { - return wxWindow::MSWWindowProc(message, wParam, lParam); + return (WXHBRUSH)Ctl3dCtlColorEx(message, wParam, lParam); } +#endif // wxUSE_CTL3D +