Applied memory allocation patch, and worked around bug that crashes memcheck.cpp

[wxWidgets.git] / src / common / dlgcmn.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        common/dlgcmn.cpp
// Purpose:     common (to all ports) wxDialog functions
// Author:      Vadim Zeitlin
// Modified by:
// Created:     28.06.99
// RCS-ID:      $Id$
// Copyright:   (c) Vadim Zeitlin
// Licence:     wxWindows license
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

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

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

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WX_PRECOMP
    #include "wx/button.h"
    #include "wx/dialog.h"
    #include "wx/dcclient.h"
    #include "wx/intl.h"
    #include "wx/settings.h"
    #include "wx/stattext.h"
    #include "wx/sizer.h"
    #include "wx/button.h"
#endif

//--------------------------------------------------------------------------
// wxDialogBase
//--------------------------------------------------------------------------

wxSizer *wxDialogBase::CreateTextSizer( const wxString &message )
{
    wxBoxSizer *box = new wxBoxSizer( wxVERTICAL );

    // get line height for empty lines
    int y = 0;
    wxFont font( GetFont() );
    if (!font.Ok())
        font = *wxSWISS_FONT;
    GetTextExtent(_T("H"), (int*)NULL, &y, (int*)NULL, (int*)NULL, &font);

    wxString line;
    for (size_t pos = 0; pos < message.Len(); pos++)
    {
        if (message[pos] == wxT('\n'))
        {
            if (!line.IsEmpty())
            {
                wxStaticText *s1 = new wxStaticText( this, -1, line );
                box->Add( s1 );
                line = wxT("");
            }
            else
            {
                box->Add( 5, y );
            }
        }
        else
        {
            line += message[pos];
        }
    }

    // remaining text behind last '\n'
    if (!line.IsEmpty())
    {
        wxStaticText *s2 = new wxStaticText( this, -1, line );
        box->Add( s2 );
    }

    return box;
}

wxSizer *wxDialogBase::CreateButtonSizer( long flags )
{
    wxBoxSizer *box = new wxBoxSizer( wxHORIZONTAL );

#if defined(__WXMSW__) || defined(__WXMAC__)
    static const int margin = 6;
#else
    static const int margin = 10;
#endif

    wxButton *ok = (wxButton *) NULL;
    wxButton *cancel = (wxButton *) NULL;
    wxButton *yes = (wxButton *) NULL;
    wxButton *no = (wxButton *) NULL;

    // always show an OK button, unless only YES_NO is given
    if ((flags & wxYES_NO) == 0) flags = flags | wxOK;

    if (flags & wxYES_NO)
    {
        yes = new wxButton( this, wxID_YES, _("Yes") );
        box->Add( yes, 0, wxLEFT|wxRIGHT, margin );
        no = new wxButton( this, wxID_NO, _("No") );
        box->Add( no, 0, wxLEFT|wxRIGHT, margin );
    } else
    if (flags & wxYES)
    {
        yes = new wxButton( this, wxID_YES, _("Yes") );
        box->Add( yes, 0, wxLEFT|wxRIGHT, margin );
    } else
    if (flags & wxNO)
    {
        no = new wxButton( this, wxID_NO, _("No") );
        box->Add( no, 0, wxLEFT|wxRIGHT, margin );
    }

    if (flags & wxOK)
    {
        ok = new wxButton( this, wxID_OK, _("OK") );
        box->Add( ok, 0, wxLEFT|wxRIGHT, margin );
    }

    if (flags & wxFORWARD)
        box->Add( new wxButton( this, wxID_FORWARD, _("Forward")  ), 0, wxLEFT|wxRIGHT, margin );

    if (flags & wxBACKWARD)
        box->Add( new wxButton( this, wxID_BACKWARD, _("Backward")  ), 0, wxLEFT|wxRIGHT, margin );

    if (flags & wxSETUP)
        box->Add( new wxButton( this, wxID_SETUP, _("Setup")  ), 0, wxLEFT|wxRIGHT, margin );

    if (flags & wxMORE)
        box->Add( new wxButton( this, wxID_MORE, _("More...")  ), 0, wxLEFT|wxRIGHT, margin );

    if (flags & wxHELP)
        box->Add( new wxButton( this, wxID_HELP, _("Help")  ), 0, wxLEFT|wxRIGHT, margin );

    if (flags & wxCANCEL)
    {
        cancel = new wxButton( this, wxID_CANCEL, _("Cancel") );
        box->Add( cancel, 0, wxLEFT|wxRIGHT, margin );
    }

    if (flags & wxNO_DEFAULT)
    {
        if (no)
        {
            no->SetDefault();
            no->SetFocus();
        }
    }
    else
    {
        if (ok)
        {
            ok->SetDefault();
            ok->SetFocus();
        }
        else if (yes)
        {
            yes->SetDefault();
            yes->SetFocus();
        }
    }

    return box;
}