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[wxWidgets.git] / src / generic / propform.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        propform.cpp
// Purpose:     Property form classes
// Author:      Julian Smart
// Modified by:
// Created:     04/01/98
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "propform.h"
#endif

// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
#pragma hdrstop
#endif

#if wxUSE_PROPSHEET

#ifndef WX_PRECOMP
    #include "wx/choice.h"
    #include "wx/checkbox.h"
    #include "wx/slider.h"
    #include "wx/msgdlg.h"
#endif

#include "wx/propform.h"

#include <ctype.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>


/*
* Property view
*/

IMPLEMENT_DYNAMIC_CLASS(wxPropertyFormView, wxPropertyView)

BEGIN_EVENT_TABLE(wxPropertyFormView, wxPropertyView)
EVT_BUTTON(wxID_OK,          wxPropertyFormView::OnOk)
EVT_BUTTON(wxID_CANCEL,      wxPropertyFormView::OnCancel)
EVT_BUTTON(wxID_HELP,        wxPropertyFormView::OnHelp)
EVT_BUTTON(wxID_PROP_REVERT, wxPropertyFormView::OnRevert)
EVT_BUTTON(wxID_PROP_UPDATE, wxPropertyFormView::OnUpdate)
END_EVENT_TABLE()

bool wxPropertyFormView::sm_dialogCancelled = FALSE;

wxPropertyFormView::wxPropertyFormView(wxWindow *propPanel, long flags):wxPropertyView(flags)
{
    m_propertyWindow = propPanel;
    m_managedWindow = NULL;

    m_windowCloseButton = NULL;
    m_windowCancelButton = NULL;
    m_windowHelpButton = NULL;

    m_detailedEditing = FALSE;
}

wxPropertyFormView::~wxPropertyFormView(void)
{
}

void wxPropertyFormView::ShowView(wxPropertySheet *ps, wxWindow *panel)
{
    m_propertySheet = ps;

    AssociatePanel(panel);
    //  CreateControls();
    //  UpdatePropertyList();
}

// Update this view of the viewed object, called e.g. by
// the object itself.
bool wxPropertyFormView::OnUpdateView(void)
{
    return TRUE;
}

bool wxPropertyFormView::Check(void)
{
    if (!m_propertySheet)
        return FALSE;

    wxNode *node = m_propertySheet->GetProperties().GetFirst();
    while (node)
    {
        wxProperty *prop = (wxProperty *)node->GetData();
        wxPropertyValidator *validator = FindPropertyValidator(prop);
        if (validator && validator->IsKindOf(CLASSINFO(wxPropertyFormValidator)))
        {
            wxPropertyFormValidator *formValidator = (wxPropertyFormValidator *)validator;
            if (!formValidator->OnCheckValue(prop, this, m_propertyWindow))
                return FALSE;
        }
        node = node->GetNext();
    }
    return TRUE;
}

bool wxPropertyFormView::TransferToPropertySheet(void)
{
    if (!m_propertySheet)
        return FALSE;

    wxNode *node = m_propertySheet->GetProperties().GetFirst();
    while (node)
    {
        wxProperty *prop = (wxProperty *)node->GetData();
        wxPropertyValidator *validator = FindPropertyValidator(prop);
        if (validator && validator->IsKindOf(CLASSINFO(wxPropertyFormValidator)))
        {
            wxPropertyFormValidator *formValidator = (wxPropertyFormValidator *)validator;
            formValidator->OnRetrieveValue(prop, this, m_propertyWindow);
        }
        node = node->GetNext();
    }
    return TRUE;
}

bool wxPropertyFormView::TransferToDialog(void)
{
    if (!m_propertySheet)
        return FALSE;

    wxNode *node = m_propertySheet->GetProperties().GetFirst();
    while (node)
    {
        wxProperty *prop = (wxProperty *)node->GetData();
        wxPropertyValidator *validator = FindPropertyValidator(prop);
        if (validator && validator->IsKindOf(CLASSINFO(wxPropertyFormValidator)))
        {
            wxPropertyFormValidator *formValidator = (wxPropertyFormValidator *)validator;
            formValidator->OnDisplayValue(prop, this, m_propertyWindow);
        }
        node = node->GetNext();
    }
    return TRUE;
}

bool wxPropertyFormView::AssociateNames(void)
{
    if (!m_propertySheet || !m_propertyWindow)
        return FALSE;

    wxWindowList::Node  *node = m_propertyWindow->GetChildren().GetFirst();
    while (node)
    {
        wxWindow *win = node->GetData();
        if ( win->GetName() != wxEmptyString )
        {
            wxProperty *prop = m_propertySheet->GetProperty(win->GetName());
            if (prop)
                prop->SetWindow(win);
        }
        node = node->GetNext();
    }
    return TRUE;
}


bool wxPropertyFormView::OnClose(void)
{
    if (m_propertyWindow->IsKindOf(CLASSINFO(wxPropertyFormPanel)))
    {
        ((wxPropertyFormPanel*)m_propertyWindow)->SetView(NULL);
    }
    delete this;
    return TRUE;
}

void wxPropertyFormView::OnOk(wxCommandEvent& WXUNUSED(event))
{
    // Retrieve the value if any
    if (!Check())
        return;

    sm_dialogCancelled = FALSE;
    TransferToPropertySheet();

    m_managedWindow->Close(TRUE);
}

void wxPropertyFormView::OnCancel(wxCommandEvent& WXUNUSED(event))
{
    sm_dialogCancelled = TRUE;

    m_managedWindow->Close(TRUE);
}

void wxPropertyFormView::OnHelp(wxCommandEvent& WXUNUSED(event))
{
}

void wxPropertyFormView::OnUpdate(wxCommandEvent& WXUNUSED(event))
{
    if (Check())
        TransferToPropertySheet();
}

void wxPropertyFormView::OnRevert(wxCommandEvent& WXUNUSED(event))
{
    TransferToDialog();
}

void wxPropertyFormView::OnCommand(wxWindow& win, wxCommandEvent& event)
{
    if (!m_propertySheet)
        return;

    if (win.GetName() == wxT(""))
        return;

    if (wxStrcmp(win.GetName(), wxT("ok")) == 0)
        OnOk(event);
    else if (wxStrcmp(win.GetName(), wxT("cancel")) == 0)
        OnCancel(event);
    else if (wxStrcmp(win.GetName(), wxT("help")) == 0)
        OnHelp(event);
    else if (wxStrcmp(win.GetName(), wxT("update")) == 0)
        OnUpdate(event);
    else if (wxStrcmp(win.GetName(), wxT("revert")) == 0)
        OnRevert(event);
    else
    {
        // Find a validator to route the command to.
        wxNode *node = m_propertySheet->GetProperties().GetFirst();
        while (node)
        {
            wxProperty *prop = (wxProperty *)node->GetData();
            if (prop->GetWindow() && (prop->GetWindow() == &win))
            {
                wxPropertyValidator *validator = FindPropertyValidator(prop);
                if (validator && validator->IsKindOf(CLASSINFO(wxPropertyFormValidator)))
                {
                    wxPropertyFormValidator *formValidator = (wxPropertyFormValidator *)validator;
                    formValidator->OnCommand(prop, this, m_propertyWindow, event);
                    return;
                }
            }
            node = node->GetNext();
        }
    }
}

// Extend event processing to call OnCommand
bool wxPropertyFormView::ProcessEvent(wxEvent& event)
{
    if (wxEvtHandler::ProcessEvent(event))
        return TRUE;
    else if (event.IsCommandEvent() && !event.IsKindOf(CLASSINFO(wxUpdateUIEvent)) && event.GetEventObject())
    {
        OnCommand(* ((wxWindow*) event.GetEventObject()), (wxCommandEvent&) event);
        return TRUE;
    }
    else
        return FALSE;
}

void wxPropertyFormView::OnDoubleClick(wxControl *item)
{
    if (!m_propertySheet)
        return;

    // Find a validator to route the command to.
    wxNode *node = m_propertySheet->GetProperties().GetFirst();
    while (node)
    {
        wxProperty *prop = (wxProperty *)node->GetData();
        if (prop->GetWindow() && ((wxControl *)prop->GetWindow() == item))
        {
            wxPropertyValidator *validator = FindPropertyValidator(prop);
            if (validator && validator->IsKindOf(CLASSINFO(wxPropertyFormValidator)))
            {
                wxPropertyFormValidator *formValidator = (wxPropertyFormValidator *)validator;
                formValidator->OnDoubleClick(prop, this, m_propertyWindow);
                return;
            }
        }
        node = node->GetNext();
    }
}

/*
* Property form dialog box
*/

IMPLEMENT_DYNAMIC_CLASS(wxPropertyFormDialog, wxDialog)

BEGIN_EVENT_TABLE(wxPropertyFormDialog, wxDialog)
EVT_CLOSE(wxPropertyFormDialog::OnCloseWindow)
END_EVENT_TABLE()

wxPropertyFormDialog::wxPropertyFormDialog(wxPropertyFormView *v, wxWindow *parent, const wxString& title,
                                           const wxPoint& pos, const wxSize& size, long style, const wxString& name):
wxDialog(parent, -1, title, pos, size, style, name)
{
    m_view = v;
    m_view->AssociatePanel(this);
    m_view->SetManagedWindow(this);
    //  SetAutoLayout(TRUE);
}

void wxPropertyFormDialog::OnCloseWindow(wxCloseEvent& event)
{
    if (m_view)
    {
        m_view->OnClose();
        m_view = NULL;
        this->Destroy();
    }
    else
        event.Veto();
}

void wxPropertyFormDialog::OnDefaultAction(wxControl *item)
{
    m_view->OnDoubleClick(item);
}

void wxPropertyFormDialog::OnCommand(wxWindow& win, wxCommandEvent& event)
{
    if ( m_view )
        m_view->OnCommand(win, event);
}

// Extend event processing to search the view's event table
bool wxPropertyFormDialog::ProcessEvent(wxEvent& event)
{
    if ( !m_view || ! m_view->ProcessEvent(event) )
        return wxEvtHandler::ProcessEvent(event);
    else
        return TRUE;
}


/*
* Property form panel
*/

IMPLEMENT_DYNAMIC_CLASS(wxPropertyFormPanel, wxPanel)

void wxPropertyFormPanel::OnDefaultAction(wxControl *item)
{
    m_view->OnDoubleClick(item);
}

void wxPropertyFormPanel::OnCommand(wxWindow& win, wxCommandEvent& event)
{
    m_view->OnCommand(win, event);
}

// Extend event processing to search the view's event table
bool wxPropertyFormPanel::ProcessEvent(wxEvent& event)
{
    if ( !m_view || ! m_view->ProcessEvent(event) )
        return wxEvtHandler::ProcessEvent(event);
    else
        return TRUE;
}

/*
* Property frame
*/

IMPLEMENT_DYNAMIC_CLASS(wxPropertyFormFrame, wxFrame)

BEGIN_EVENT_TABLE(wxPropertyFormFrame, wxFrame)
EVT_CLOSE(wxPropertyFormFrame::OnCloseWindow)
END_EVENT_TABLE()

void wxPropertyFormFrame::OnCloseWindow(wxCloseEvent& event)
{
    if (m_view && m_view->OnClose())
        this->Destroy();
    else
        event.Veto();
}

wxPanel *wxPropertyFormFrame::OnCreatePanel(wxFrame *parent, wxPropertyFormView *v)
{
    return new wxPropertyFormPanel(v, parent);
}

bool wxPropertyFormFrame::Initialize(void)
{
    m_propertyPanel = OnCreatePanel(this, m_view);
    if (m_propertyPanel)
    {
        m_view->AssociatePanel(m_propertyPanel);
        m_view->SetManagedWindow(this);
        return TRUE;
    }
    else
        return FALSE;
}

/*
* Property form specific validator
*/

IMPLEMENT_ABSTRACT_CLASS(wxPropertyFormValidator, wxPropertyValidator)


/*
* Default validators
*/

IMPLEMENT_DYNAMIC_CLASS(wxRealFormValidator, wxPropertyFormValidator)

///
/// Real number form validator
///
bool wxRealFormValidator::OnCheckValue( wxProperty *property, wxPropertyFormView *WXUNUSED(view),
                                       wxWindow *parentWindow)
{
    if (m_realMin == 0.0 && m_realMax == 0.0)
        return TRUE;

    // The item used for viewing the real number: should be a text item.
    wxWindow *m_propertyWindow = property->GetWindow();
    if (!m_propertyWindow || !m_propertyWindow->IsKindOf(CLASSINFO(wxTextCtrl)))
        return FALSE;

    wxString value(((wxTextCtrl *)m_propertyWindow)->GetValue());

    float val = 0.0;
    if (!StringToFloat(WXSTRINGCAST value, &val))
    {
        wxChar buf[200];
        wxSprintf(buf, wxT("Value %s is not a valid real number!"), (const wxChar *)value);
        wxMessageBox(buf, wxT("Property value error"), wxOK | wxICON_EXCLAMATION, parentWindow);
        return FALSE;
    }

    if (val < m_realMin || val > m_realMax)
    {
        wxChar buf[200];
        wxSprintf(buf, wxT("Value must be a real number between %.2f and %.2f!"), m_realMin, m_realMax);
        wxMessageBox(buf, wxT("Property value error"), wxOK | wxICON_EXCLAMATION, parentWindow);
        return FALSE;
    }
    return TRUE;
}

bool wxRealFormValidator::OnRetrieveValue(wxProperty *property, wxPropertyFormView *WXUNUSED(view),
                                          wxWindow *WXUNUSED(parentWindow) )
{
    // The item used for viewing the real number: should be a text item.
    wxWindow *m_propertyWindow = property->GetWindow();
    if (!m_propertyWindow || !m_propertyWindow->IsKindOf(CLASSINFO(wxTextCtrl)))
        return FALSE;

    wxString value(((wxTextCtrl *)m_propertyWindow)->GetValue());

    if (value.Length() == 0)
        return FALSE;

    float f = (float)wxAtof((const wxChar *)value);
    property->GetValue() = f;
    return TRUE;
}

bool wxRealFormValidator::OnDisplayValue(wxProperty *property, wxPropertyFormView *WXUNUSED(view),
                                         wxWindow *WXUNUSED(parentWindow) )
{
    // The item used for viewing the real number: should be a text item.
    wxWindow *m_propertyWindow = property->GetWindow();
    if (!m_propertyWindow || !m_propertyWindow->IsKindOf(CLASSINFO(wxTextCtrl)))
        return FALSE;

    wxTextCtrl *textItem = (wxTextCtrl *)m_propertyWindow;
    textItem->SetValue(FloatToString(property->GetValue().RealValue()));
    return TRUE;
}

///
/// Integer validator
///
IMPLEMENT_DYNAMIC_CLASS(wxIntegerFormValidator, wxPropertyFormValidator)

bool wxIntegerFormValidator::OnCheckValue(wxProperty *property, wxPropertyFormView *WXUNUSED(view),
                                          wxWindow *parentWindow)
{
    if (m_integerMin == 0.0 && m_integerMax == 0.0)
        return TRUE;

    // The item used for viewing the real number: should be a text item or a slider
    wxWindow *m_propertyWindow = property->GetWindow();
    if (!m_propertyWindow)
        return FALSE;

    long val = 0;

    if (m_propertyWindow->IsKindOf(CLASSINFO(wxTextCtrl)))
    {
        wxString value(((wxTextCtrl *)m_propertyWindow)->GetValue());

        if (!StringToLong(WXSTRINGCAST value, &val))
        {
            wxChar buf[200];
            wxSprintf(buf, wxT("Value %s is not a valid integer!"), (const wxChar *)value);
            wxMessageBox(buf, wxT("Property value error"), wxOK | wxICON_EXCLAMATION, parentWindow);
            return FALSE;
        }
    }
    else if (m_propertyWindow->IsKindOf(CLASSINFO(wxSlider)))
    {
        val = (long)((wxSlider *)m_propertyWindow)->GetValue();
    }
    else
        return FALSE;

    if (val < m_integerMin || val > m_integerMax)
    {
        wxChar buf[200];
        wxSprintf(buf, wxT("Value must be an integer between %ld and %ld!"), m_integerMin, m_integerMax);
        wxMessageBox(buf, wxT("Property value error"), wxOK | wxICON_EXCLAMATION, parentWindow);
        return FALSE;
    }
    return TRUE;
}

bool wxIntegerFormValidator::OnRetrieveValue(wxProperty *property, wxPropertyFormView *WXUNUSED(view),
                                             wxWindow *WXUNUSED(parentWindow))
{
    // The item used for viewing the real number: should be a text item or a slider
    wxWindow *m_propertyWindow = property->GetWindow();
    if (!m_propertyWindow)
        return FALSE;

    if (m_propertyWindow->IsKindOf(CLASSINFO(wxTextCtrl)))
    {
        wxString value(((wxTextCtrl *)m_propertyWindow)->GetValue());

        if (value.Length() == 0)
            return FALSE;

        long i = wxAtol((const wxChar *)value);
        property->GetValue() = i;
    }
    else if (m_propertyWindow->IsKindOf(CLASSINFO(wxSlider)))
    {
        property->GetValue() = (long)((wxSlider *)m_propertyWindow)->GetValue();
    }
    else
        return FALSE;

    return TRUE;
}

bool wxIntegerFormValidator::OnDisplayValue( wxProperty *property, wxPropertyFormView *WXUNUSED(view),
                                            wxWindow *WXUNUSED(parentWindow))
{
    // The item used for viewing the real number: should be a text item or a slider
    wxWindow *m_propertyWindow = property->GetWindow();
    if (!m_propertyWindow)
        return FALSE;

    if (m_propertyWindow->IsKindOf(CLASSINFO(wxTextCtrl)))
    {
        wxTextCtrl *textItem = (wxTextCtrl *)m_propertyWindow;
        textItem->SetValue(LongToString(property->GetValue().IntegerValue()));
    }
    else if (m_propertyWindow->IsKindOf(CLASSINFO(wxSlider)))
    {
        ((wxSlider *)m_propertyWindow)->SetValue((int)property->GetValue().IntegerValue());
    }
    else
        return FALSE;
    return TRUE;
}

///
/// Boolean validator
///
IMPLEMENT_DYNAMIC_CLASS(wxBoolFormValidator, wxPropertyFormValidator)

bool wxBoolFormValidator::OnCheckValue(wxProperty *property, wxPropertyFormView *WXUNUSED(view),
                                       wxWindow *WXUNUSED(parentWindow))
{
    // The item used for viewing the boolean: should be a checkbox
    wxWindow *m_propertyWindow = property->GetWindow();
    if (!m_propertyWindow || !m_propertyWindow->IsKindOf(CLASSINFO(wxCheckBox)))
        return FALSE;

    return TRUE;
}

bool wxBoolFormValidator::OnRetrieveValue(wxProperty *property, wxPropertyFormView *WXUNUSED(view),
                                          wxWindow *WXUNUSED(parentWindow) )
{
    // The item used for viewing the boolean: should be a checkbox.
    wxWindow *m_propertyWindow = property->GetWindow();
    if (!m_propertyWindow || !m_propertyWindow->IsKindOf(CLASSINFO(wxCheckBox)))
        return FALSE;

    wxCheckBox *checkBox = (wxCheckBox *)m_propertyWindow;

    property->GetValue() = (bool)checkBox->GetValue();
    return TRUE;
}

bool wxBoolFormValidator::OnDisplayValue(wxProperty *property, wxPropertyFormView *WXUNUSED(view),
                                         wxWindow *WXUNUSED(parentWindow))
{
    // The item used for viewing the boolean: should be a checkbox.
    wxWindow *m_propertyWindow = property->GetWindow();
    if (!m_propertyWindow || !m_propertyWindow->IsKindOf(CLASSINFO(wxCheckBox)))
        return FALSE;

    wxCheckBox *checkBox = (wxCheckBox *)m_propertyWindow;
    checkBox->SetValue((bool)property->GetValue().BoolValue());
    return TRUE;
}

///
/// String validator
///
IMPLEMENT_DYNAMIC_CLASS(wxStringFormValidator, wxPropertyFormValidator)

wxStringFormValidator::wxStringFormValidator(wxStringList *list, long flags):
wxPropertyFormValidator(flags)
{
    m_strings = list;
}

bool wxStringFormValidator::OnCheckValue(wxProperty *property, wxPropertyFormView *WXUNUSED(view),
                                         wxWindow *parentWindow )
{
    if (!m_strings)
        return TRUE;

    // The item used for viewing the string: should be a text item, choice item or listbox.
    wxWindow *m_propertyWindow = property->GetWindow();
    if (!m_propertyWindow)
        return FALSE;
    if (m_propertyWindow->IsKindOf(CLASSINFO(wxTextCtrl)))
    {
        wxTextCtrl *text = (wxTextCtrl *)m_propertyWindow;
        if (!m_strings->Member(text->GetValue()))
        {
            wxString str( wxT("Value ") );
            str += text->GetValue();
            str += wxT(" is not valid.");
            wxMessageBox(str, wxT("Property value error"), wxOK | wxICON_EXCLAMATION, parentWindow);
            return FALSE;
        }
    }
    else
    {
        // Any other item constrains the string value,
        // so we don't have to check it.
    }
    return TRUE;
}

bool wxStringFormValidator::OnRetrieveValue(wxProperty *property, wxPropertyFormView *WXUNUSED(view),
                                            wxWindow *WXUNUSED(parentWindow) )
{
    // The item used for viewing the string: should be a text item, choice item or listbox.
    wxWindow *m_propertyWindow = property->GetWindow();
    if (!m_propertyWindow)
        return FALSE;
    if (m_propertyWindow->IsKindOf(CLASSINFO(wxTextCtrl)))
    {
        wxTextCtrl *text = (wxTextCtrl *)m_propertyWindow;
        property->GetValue() = text->GetValue();
    }
    else if (m_propertyWindow->IsKindOf(CLASSINFO(wxListBox)))
    {
        wxListBox *lbox = (wxListBox *)m_propertyWindow;
        if (lbox->GetSelection() > -1)
            property->GetValue() = lbox->GetStringSelection();
    }
    /*
    else if (m_propertyWindow->IsKindOf(CLASSINFO(wxRadioBox)))
    {
    wxRadioBox *rbox = (wxRadioBox *)m_propertyWindow;
    int n = 0;
    if ((n = rbox->GetSelection()) > -1)
    property->GetValue() = rbox->GetString(n);
    }
    */
    else if (m_propertyWindow->IsKindOf(CLASSINFO(wxChoice)))
    {
        wxChoice *choice = (wxChoice *)m_propertyWindow;
        if (choice->GetSelection() > -1)
            property->GetValue() = choice->GetStringSelection();
    }
    else
        return FALSE;
    return TRUE;
}

bool wxStringFormValidator::OnDisplayValue(wxProperty *property, wxPropertyFormView *WXUNUSED(view),
                                           wxWindow *WXUNUSED(parentWindow) )
{
    // The item used for viewing the string: should be a text item, choice item or listbox.
    wxWindow *m_propertyWindow = property->GetWindow();
    if (!m_propertyWindow)
        return FALSE;
    if (m_propertyWindow->IsKindOf(CLASSINFO(wxTextCtrl)))
    {
        wxTextCtrl *text = (wxTextCtrl *)m_propertyWindow;
        text->SetValue(property->GetValue().StringValue());
    }
    else if (m_propertyWindow->IsKindOf(CLASSINFO(wxListBox)))
    {
        wxListBox *lbox = (wxListBox *)m_propertyWindow;
        if (lbox->GetCount() == 0 && m_strings)
        {
            // Try to initialize the listbox from 'strings'
            wxStringList::Node  *node = m_strings->GetFirst();
            while (node)
            {
                wxChar *s = node->GetData();
                lbox->Append(s);
                node = node->GetNext();
            }
        }
        lbox->SetStringSelection(property->GetValue().StringValue());
    }
    /*
    else if (m_propertyWindow->IsKindOf(CLASSINFO(wxRadioBox)))
    {
    wxRadioBox *rbox = (wxRadioBox *)m_propertyWindow;
    rbox->SetStringSelection(property->GetValue().StringValue());
    }
    */
    else if (m_propertyWindow->IsKindOf(CLASSINFO(wxChoice)))
    {
        wxChoice *choice = (wxChoice *)m_propertyWindow;
        if (choice->GetCount() == 0 && m_strings)
        {
            // Try to initialize the choice item from 'strings'
            // XView doesn't allow this kind of thing.
            wxStringList::Node  *node = m_strings->GetFirst();
            while (node)
            {
                wxChar *s = node->GetData();
                choice->Append(s);
                node = node->GetNext();
            }
        }
        choice->SetStringSelection(property->GetValue().StringValue());
    }
    else
        return FALSE;
    return TRUE;
}

#endif // wxUSE_PROPSHEET