dialog.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name:        src/msw/dialog.cpp
// Purpose:     wxDialog class
// Author:      Julian Smart
// Modified by:
// Created:     01/02/97
// RCS-ID:      $Id: dialog.cpp,v 1.125 2005/09/02 08:20:05 VZ Exp $
// Copyright:   (c) Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// 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
#endif

#ifndef WX_PRECOMP
    #include "wx/dialog.h"
    #include "wx/utils.h"
    #include "wx/frame.h"
    #include "wx/app.h"
    #include "wx/button.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"

#include "wx/msw/wrapcdlg.h"

#if defined(__SMARTPHONE__) && defined(__WXWINCE__)
    #include "wx/msw/wince/resources.h"
#endif // __SMARTPHONE__ && __WXWINCE__

#if wxUSE_TOOLBAR && defined(__POCKETPC__)
#include "wx/toolbar.h"
#endif

// ----------------------------------------------------------------------------
// 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(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 , EMPTY_MACROVALUE , 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

BEGIN_EVENT_TABLE(wxDialog, wxDialogBase)
    EVT_BUTTON(wxID_OK, wxDialog::OnOK)
    EVT_BUTTON(wxID_APPLY, wxDialog::OnApply)
    EVT_BUTTON(wxID_CANCEL, wxDialog::OnCancel)

    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_oldFocus = (wxWindow *)NULL;
    m_isShown = false;
    m_modalData = NULL;
    m_endModalCalled = false;
#if wxUSE_TOOLBAR && defined(__POCKETPC__)
    m_dialogToolBar = NULL;
#endif
}

bool wxDialog::Create(wxWindow *parent,
                      wxWindowID id,
                      const wxString& title,
                      const wxPoint& pos,
                      const wxSize& size,
                      long style,
                      const wxString& name)
{
    SetExtraStyle(GetExtraStyle() | wxTOPLEVEL_EX_DIALOG);

    // save focus before doing anything which can potentially change it
    m_oldFocus = FindFocus();

    // All dialogs should really have this style
    style |= wxTAB_TRAVERSAL;

    if ( !wxTopLevelWindow::Create(parent, id, title, pos, size, style, name) )
        return false;

    if ( !m_hasFont )
        SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));

#if defined(__SMARTPHONE__) && defined(__WXWINCE__)
    SetLeftMenu(wxID_OK, _("OK"));
#endif
#if wxUSE_TOOLBAR && defined(__POCKETPC__)
    CreateToolBar();
#endif

    return true;
}

// 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)
{
    Init();

    Create(parent, wxID_ANY, title, wxPoint(x, y), wxSize(w, h), style, name);
}

void wxDialog::SetModal(bool WXUNUSED(flag))
{
    // nothing to do, obsolete method
}

wxDialog::~wxDialog()
{
    m_isBeingDeleted = true;

    // this will also reenable all the other windows for a modal dialog
    Show(false);
}

// ----------------------------------------------------------------------------
// showing the dialogs
// ----------------------------------------------------------------------------

bool wxDialog::IsModalShowing() const
{
    return IsModal();
}

wxWindow *wxDialog::FindSuitableParent() const
{
    // 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;
}

bool wxDialog::Show(bool show)
{
    if ( show == IsShown() )
        return false;

    if ( !show && m_modalData )
    {
        // 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();
    }

    if ( show )
    {
        // 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();
    }

    wxDialogBase::Show(show);

    if ( show )
    {
        // 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();
    }

    return true;
}

void wxDialog::Raise()
{
    ::SetForegroundWindow(GetHwnd());
}