X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f3e4a2a4146a4a28fedce563f42f1e3f38462d80..ee5aa9d44fa75e88bce9981d7d02dea9f6d5f3c4:/src/os2/dialog.cpp?ds=sidebyside diff --git a/src/os2/dialog.cpp b/src/os2/dialog.cpp index eb635379c9..e17a1414d8 100644 --- a/src/os2/dialog.cpp +++ b/src/os2/dialog.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: dialog.cpp +// Name: src/os2/dialog.cpp // Purpose: wxDialog class // Author: David Webster // Modified by: @@ -12,18 +12,20 @@ // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" -#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/intl.h" -#include "wx/log.h" + +#ifndef WX_PRECOMP + #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/os2/private.h" -#include "wx/log.h" +#include "wx/evtloop.h" +#include "wx/ptr_scpd.h" #define wxDIALOG_DEFAULT_X 300 #define wxDIALOG_DEFAULT_Y 300 @@ -31,45 +33,60 @@ #define wxDIALOG_DEFAULT_WIDTH 500 #define wxDIALOG_DEFAULT_HEIGHT 500 -wxWindowList wxModalDialogs; - IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxTopLevelWindow) -BEGIN_EVENT_TABLE(wxDialog, wxDialogBase) - 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() +// ---------------------------------------------------------------------------- +// wxDialogModalData +// ---------------------------------------------------------------------------- + +// 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 +{ +public: + wxDialogModalData(wxDialog *dialog) : m_evtLoop(dialog) { } + + void RunLoop() + { + m_evtLoop.Run(); + } + + void ExitLoop() + { + m_evtLoop.Exit(); + } + +private: + wxModalEventLoop m_evtLoop; +}; + +wxDEFINE_TIED_SCOPED_PTR_TYPE(wxDialogModalData); + +// ============================================================================ +// implementation +// ============================================================================ + +// ---------------------------------------------------------------------------- +// wxDialog construction +// ---------------------------------------------------------------------------- void wxDialog::Init() { m_pOldFocus = (wxWindow *)NULL; - m_isShown = FALSE; + m_isShown = false; m_pWindowDisabler = (wxWindowDisabler *)NULL; + m_modalData = NULL; SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)); } // end of wxDialog::Init -bool wxDialog::Create( - wxWindow* pParent -, wxWindowID vId -, const wxString& rsTitle -, const wxPoint& rPos -, const wxSize& rSize -, long lStyle -, const wxString& rsName -) +bool wxDialog::Create( wxWindow* pParent, + wxWindowID vId, + const wxString& rsTitle, + const wxPoint& rPos, + const wxSize& rSize, + long lStyle, + const wxString& rsName ) { - long lX = rPos.x; - long lY = rPos.y; - long lWidth = rSize.x; - long lHeight = rSize.y; - const char* zDlg; - WXDWORD dwExtendedStyle = 0L; - HWND hWnd; - Init(); SetExtraStyle(GetExtraStyle() | wxTOPLEVEL_EX_DIALOG); @@ -91,7 +108,8 @@ bool wxDialog::Create( ,lStyle ,rsName )) - return FALSE; + return false; + SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); // @@ -99,325 +117,212 @@ bool wxDialog::Create( // if (!rsTitle.IsNull()) SetTitle(rsTitle); - return TRUE; + return true; } // end of wxDialog::Create -void wxDialog::SetModal( - bool bFlag -) +#if WXWIN_COMPATIBILITY_2_6 + +// deprecated ctor +wxDialog::wxDialog(wxWindow *parent, + const wxString& title, + bool WXUNUSED(modal), + int x, + int y, + int w, + int h, + long style, + const wxString& name) { - if (bFlag) - { - m_windowStyle |= wxDIALOG_MODAL ; - wxModelessWindows.DeleteObject(this); - } - else - { - m_windowStyle &= ~wxDIALOG_MODAL ; - wxModelessWindows.Append(this); - } -} // end of wxDialog::SetModal + Init(); -wxDialog::~wxDialog() -{ - m_isBeingDeleted = TRUE; - Show(FALSE); -} // end of wxDialog::~wxDialog + Create(parent, wxID_ANY, title, wxPoint(x, y), wxSize(w, h), style, name); +} -// -// By default, pressing escape cancels the dialog -// -void wxDialog::OnCharHook( - wxKeyEvent& rEvent -) +void wxDialog::SetModal(bool WXUNUSED(bFlag)) { - if (GetHWND()) - { - if (rEvent.m_keyCode == WXK_ESCAPE) - { - // - // Behaviour changed in 2.0: we'll send a Cancel message - // to the dialog instead of Close. - // - wxCommandEvent vCancelEvent( wxEVT_COMMAND_BUTTON_CLICKED - ,wxID_CANCEL - ); + // nothing to do, obsolete method +} // end of wxDialog::SetModal - vCancelEvent.SetEventObject( this ); - GetEventHandler()->ProcessEvent(vCancelEvent); +#endif // WXWIN_COMPATIBILITY_2_6 - // - // Ensure that there is another message for this window so the - // ShowModal loop will exit and won't get stuck in GetMessage(). - // - ::WinPostMsg(GetHwnd(), WM_NULL, 0, 0); - return; - } - } - // We didn't process this event. - rEvent.Skip(); -} +wxDialog::~wxDialog() +{ + m_isBeingDeleted = true; + + // this will also reenable all the other windows for a modal dialog + Show(false); +} // end of wxDialog::~wxDialog // ---------------------------------------------------------------------------- // showing the dialogs // ---------------------------------------------------------------------------- -bool wxDialog::IsModal() const -{ - return (GetWindowStyleFlag() & wxDIALOG_MODAL) != 0; -} // end of wxDialog::IsModal +#if WXWIN_COMPATIBILITY_2_6 bool wxDialog::IsModalShowing() const { - return wxModalDialogs.Find((wxDialog *)this) != NULL; // const_cast + return IsModal(); } // end of wxDialog::IsModalShowing -void wxDialog::DoShowModal() -{ - wxWindow* pParent = GetParent(); - wxWindow* pOldFocus = m_pOldFocus; - HWND hWndOldFocus = 0; +#endif // WXWIN_COMPATIBILITY_2_6 - wxCHECK_RET( !IsModalShowing(), _T("DoShowModal() called twice") ); - wxCHECK_RET( IsModal(), _T("can't DoShowModal() modeless dialog") ); - - wxModalDialogs.Append(this); - if (pOldFocus) - hWndOldFocus = (HWND)pOldFocus->GetHWND(); - - // - // Remember where the focus was - // - if (!pOldFocus) +wxWindow *wxDialog::FindSuitableParent() const +{ + // first try to use the currently active window + HWND hwndFg = ::WinQueryActiveWindow(HWND_DESKTOP); + wxWindow *parent = hwndFg ? wxFindWinFromHandle((WXHWND)hwndFg) + : NULL; + if ( !parent ) { - pOldFocus = pParent; - if (pParent) - hWndOldFocus = GetHwndOf(pParent); + // next try the main app window + parent = wxTheApp->GetTopWindow(); } - // - // Disable all other app windows - // - wxASSERT_MSG(!m_pWindowDisabler, _T("disabling windows twice?")); - - // - // Disables other app windows and window proc message processing - // until WinDismissDlg called - // - ::WinProcessDlg((HWND)GetHwnd()); - - // - // Enter the modal loop - // - while ( IsModalShowing() ) + // finally, check if the parent we found is really suitable + if ( !parent || parent == (wxWindow *)this || !parent->IsShown() ) { -#if wxUSE_THREADS - wxMutexGuiLeaveOrEnter(); -#endif // wxUSE_THREADS - - while ( !wxTheApp->Pending() && wxTheApp->ProcessIdle() ) - ; - - // a message came or no more idle processing to do - wxTheApp->DoMessage(); + // don't use this one + parent = NULL; } - // - // Snd 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 (pOldFocus && (pOldFocus != this) && ::WinIsWindow(vHabmain, hWndOldFocus)) - { - // - // This is likely to prove that the object still exists - // - if (wxFindWinFromHandle((WXHWND) hWndOldFocus) == pOldFocus) - pOldFocus->SetFocus(); - } -} // end of wxDialog::DoShowModal + return parent; +} -bool wxDialog::Show( - bool bShow -) +bool wxDialog::Show( bool bShow ) { - if (!bShow) + if ( bShow == IsShown() ) + return false; + + if (!bShow && m_modalData ) { - // - // If we had disabled other app windows, reenable them back now because + // 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) and we will lose activation. We really don't - // do this in OS/2 since PM does this for us. - // + // which is enabled, anyhow) when we're hidden in the base class Show() + // and we will lose activation + m_modalData->ExitLoop(); +#if 0 if (m_pWindowDisabler) { delete m_pWindowDisabler; m_pWindowDisabler = NULL; } - } - - // - // ShowModal() may be called for already shown dialog - // - if (!wxDialogBase::Show(bShow) && !(bShow && IsModal())) - { - // - // Nothing to do - // - return FALSE; +#endif } if (bShow) { - // - // Usually will result in TransferDataToWindow() being called - // + // this usually will result in TransferDataToWindow() being called + // which will change the controls values so do it before showing as + // otherwise we could have some flicker InitDialog(); } - if (GetTitle().c_str()) - ::WinSetWindowText((HWND)GetHwnd(), GetTitle().c_str()); - if (IsModal()) + wxDialogBase::Show(bShow); + + wxString title = GetTitle(); + if (!title.empty()) + ::WinSetWindowText((HWND)GetHwnd(), title.c_str()); + + if ( bShow ) { - if (bShow) - { - // - // Modal dialog needs a parent window, so try to find one - // - if (!GetParent()) - { - wxWindow* pParent = wxTheApp->GetTopWindow(); - - if ( pParent && pParent != this && pParent->IsShown() ) - { - // - // Use it - // - m_parent = pParent; - - } - } - DoShowModal(); - } - else // end of modal dialog - { - // - // This will cause IsModalShowing() return FALSE and our local - // message loop will terminate - // - wxModalDialogs.DeleteObject(this); - } + // dialogs don't get WM_SIZE message after creation unlike most (all?) + // other windows and so could start their life not 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(); } - return TRUE; + + return true; } // end of wxDialog::Show // -// Replacement for Show(TRUE) for modal dialogs - returns return code +// Replacement for Show(true) for modal dialogs - returns return code // int wxDialog::ShowModal() { - if (!IsModal()) - { - SetModal(TRUE); - } - Show(TRUE); - return GetReturnCode(); -} // end of wxDialog::ShowModal + wxASSERT_MSG( !IsModal(), _T("wxDialog::ShowModal() reentered?") ); -void wxDialog::EndModal( - int nRetCode -) -{ - SetReturnCode(nRetCode); - Show(FALSE); - ::WinDismissDlg((HWND)GetHwnd(), nRetCode); -} // end of wxDialog::EndModal + m_endModalCalled = false; -// ---------------------------------------------------------------------------- -// wxWin event handlers -// ---------------------------------------------------------------------------- + Show(); -void wxDialog::OnApply( - wxCommandEvent& rEvent -) -{ - if (Validate()) - TransferDataFromWindow(); -} // end of wxDialog::OnApply - -// Standard buttons -void wxDialog::OnOK( - wxCommandEvent& rEvent -) -{ - if ( Validate() && TransferDataFromWindow() ) + // EndModal may have been called from InitDialog handler (called from + // inside Show()), which would cause an infinite loop if we didn't take it + // into account + if ( !m_endModalCalled ) { - EndModal(wxID_OK); - } -} // end of wxDialog::OnOK + // modal dialog needs a parent window, so try to find one + wxWindow *parent = GetParent(); + if ( !parent ) + { + parent = FindSuitableParent(); + } -void wxDialog::OnCancel( - wxCommandEvent& rEvent -) -{ - EndModal(wxID_CANCEL); -} // end of wxDialog::OnCancel + // remember where the focus was + wxWindow *oldFocus = m_pOldFocus; + if ( !oldFocus ) + { + // VZ: do we really want to do this? + oldFocus = parent; + } -void wxDialog::OnCloseWindow( - wxCloseEvent& rEvent -) -{ - // - // 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. - // + // 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 = oldFocus ? GetHwndOf(oldFocus) : NULL; - // - // Ugh??? This is not good but until I figure out a global list it'll have to do - // - static wxList closing; - if ( closing.Member(this) ) - return; + // + // Before entering the modal loop, reset the "is in OnIdle()" flag (see + // comment in app.cpp) + // + extern bool gbInOnIdle; + bool bWasInOnIdle = gbInOnIdle; - closing.Append(this); + gbInOnIdle = false; - wxCommandEvent vCancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL); + // enter and run the modal loop + { + wxDialogModalDataTiedPtr modalData(&m_modalData, + new wxDialogModalData(this)); + modalData->RunLoop(); + } + gbInOnIdle = bWasInOnIdle; - vCancelEvent.SetEventObject( this ); - GetEventHandler()->ProcessEvent(vCancelEvent); // This may close the dialog + // 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) && ::WinIsWindow(vHabmain, hwndOldFocus)) + { + // This is likely to prove that the object still exists + if (wxFindWinFromHandle((WXHWND) hwndOldFocus) == oldFocus) + oldFocus->SetFocus(); + } + } - closing.DeleteObject(this); -} // end of wxDialog::OnCloseWindow + return GetReturnCode(); +} // end of wxDialog::ShowModal -void wxDialog::OnSysColourChanged( - wxSysColourChangedEvent& rEvent +void wxDialog::EndModal( + int nRetCode ) { - SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)); - Refresh(); -} // end of wxDialog::OnSysColourChanged + wxASSERT_MSG( IsModal(), _T("EndModal() called for non modal dialog") ); -MRESULT wxDialog::OS2WindowProc( - WXUINT uMessage -, WXWPARAM wParam -, WXLPARAM lParam -) + m_endModalCalled = true; + SetReturnCode(nRetCode); + + Hide(); +} // end of wxDialog::EndModal + +MRESULT wxDialog::OS2WindowProc( WXUINT uMessage, WXWPARAM wParam, WXLPARAM lParam ) { - MRESULT rc = 0; - bool bProcessed = FALSE; + MRESULT rc = 0; + bool bProcessed = false; switch (uMessage) { @@ -437,4 +342,3 @@ MRESULT wxDialog::OS2WindowProc( ); return rc; } // end of wxDialog::OS2WindowProc -