notebook.cpp

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///////////////////////////////////////////////////////////////////////////////
// Name:        src/msw/notebook.cpp
// Purpose:     implementation of wxNotebook
// Author:      Vadim Zeitlin
// Modified by:
// Created:     11.06.98
// RCS-ID:      $Id: notebook.cpp,v 1.159.2.4 2006/02/11 15:41:24 JS Exp $
// Copyright:   (c) 1998 Vadim Zeitlin <[e-mail]>
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "notebook.h"
#endif

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

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#if wxUSE_NOTEBOOK

// wxWidgets
#ifndef WX_PRECOMP
  #include  "wx/string.h"
  #include  "wx/dc.h"
#endif  // WX_PRECOMP

#include  "wx/log.h"
#include  "wx/imaglist.h"
#include  "wx/event.h"
#include  "wx/control.h"
#include  "wx/notebook.h"
#include  "wx/app.h"
#include  "wx/sysopt.h"
#include  "wx/dcclient.h"
#include  "wx/dcmemory.h"

#include  "wx/msw/private.h"

#include  <windowsx.h>

#include <commctrl.h>

#include "wx/msw/winundef.h"

#if wxUSE_UXTHEME
    #include "wx/msw/uxtheme.h"
#endif

// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------

// check that the page index is valid
#define IS_VALID_PAGE(nPage) ((nPage) < GetPageCount())

// you can set USE_NOTEBOOK_ANTIFLICKER to 0 for desktop Windows versions too
// to disable code whih results in flicker-less notebook redrawing at the
// expense of some extra GDI resource consumption
#ifdef __WXWINCE__
    // notebooks are never resized under CE anyhow
    #define USE_NOTEBOOK_ANTIFLICKER    0
#else
    #define USE_NOTEBOOK_ANTIFLICKER    1
#endif

// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------

// This is a work-around for missing defines in gcc-2.95 headers
#ifndef TCS_RIGHT
    #define TCS_RIGHT       0x0002
#endif

#ifndef TCS_VERTICAL
    #define TCS_VERTICAL    0x0080
#endif

#ifndef TCS_BOTTOM
    #define TCS_BOTTOM      TCS_RIGHT
#endif

// ----------------------------------------------------------------------------
// global variables
// ----------------------------------------------------------------------------

#if USE_NOTEBOOK_ANTIFLICKER

// the pointer to standard spin button wnd proc
static WXFARPROC gs_wndprocNotebookSpinBtn = (WXFARPROC)NULL;

// the pointer to standard tab control wnd proc
static WXFARPROC gs_wndprocNotebook = (WXFARPROC)NULL;

LRESULT APIENTRY _EXPORT wxNotebookWndProc(HWND hwnd,
                                           UINT message,
                                           WPARAM wParam,
                                           LPARAM lParam);

#endif // USE_NOTEBOOK_ANTIFLICKER

// ----------------------------------------------------------------------------
// event table
// ----------------------------------------------------------------------------

#include <wx/listimpl.cpp>

WX_DEFINE_LIST( wxNotebookPageInfoList ) ;

DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)

BEGIN_EVENT_TABLE(wxNotebook, wxControl)
    EVT_NOTEBOOK_PAGE_CHANGED(-1, wxNotebook::OnSelChange)
    EVT_SIZE(wxNotebook::OnSize)
    EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)

#if USE_NOTEBOOK_ANTIFLICKER
    EVT_ERASE_BACKGROUND(wxNotebook::OnEraseBackground)
    EVT_PAINT(wxNotebook::OnPaint)
#endif // USE_NOTEBOOK_ANTIFLICKER
END_EVENT_TABLE()

#if wxUSE_EXTENDED_RTTI
WX_DEFINE_FLAGS( wxNotebookStyle )

wxBEGIN_FLAGS( wxNotebookStyle )
    // 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(wxBORDER)

    // standard window styles
    wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
    wxFLAGS_MEMBER(wxCLIP_CHILDREN)
    wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
    wxFLAGS_MEMBER(wxWANTS_CHARS)
    wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
    wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
    wxFLAGS_MEMBER(wxVSCROLL)
    wxFLAGS_MEMBER(wxHSCROLL)

    wxFLAGS_MEMBER(wxNB_FIXEDWIDTH)
    wxFLAGS_MEMBER(wxNB_LEFT)
    wxFLAGS_MEMBER(wxNB_RIGHT)
    wxFLAGS_MEMBER(wxNB_BOTTOM)
    wxFLAGS_MEMBER(wxNB_NOPAGETHEME)
    wxFLAGS_MEMBER(wxNB_FLAT)

wxEND_FLAGS( wxNotebookStyle )

IMPLEMENT_DYNAMIC_CLASS_XTI(wxNotebook, wxControl,"wx/notebook.h")
IMPLEMENT_DYNAMIC_CLASS_XTI(wxNotebookPageInfo, wxObject , "wx/notebook.h" )

wxCOLLECTION_TYPE_INFO( wxNotebookPageInfo * , wxNotebookPageInfoList ) ;

template<> void wxCollectionToVariantArray( wxNotebookPageInfoList const &theList, wxxVariantArray &value)
{
    wxListCollectionToVariantArray<wxNotebookPageInfoList::compatibility_iterator>( theList , value ) ;
}

wxBEGIN_PROPERTIES_TABLE(wxNotebook)
    wxEVENT_PROPERTY( PageChanging , wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING , wxNotebookEvent )
    wxEVENT_PROPERTY( PageChanged , wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED , wxNotebookEvent )

    wxPROPERTY_COLLECTION( PageInfos , wxNotebookPageInfoList , wxNotebookPageInfo* , AddPageInfo , GetPageInfos , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
    wxPROPERTY_FLAGS( WindowStyle , wxNotebookStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
wxEND_PROPERTIES_TABLE()

wxBEGIN_HANDLERS_TABLE(wxNotebook)
wxEND_HANDLERS_TABLE()

wxCONSTRUCTOR_5( wxNotebook , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle)


wxBEGIN_PROPERTIES_TABLE(wxNotebookPageInfo)
    wxREADONLY_PROPERTY( Page , wxNotebookPage* , GetPage , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
    wxREADONLY_PROPERTY( Text , wxString , GetText , wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
    wxREADONLY_PROPERTY( Selected , bool , GetSelected , false, 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
    wxREADONLY_PROPERTY( ImageId , int , GetImageId , -1 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
wxEND_PROPERTIES_TABLE()

wxBEGIN_HANDLERS_TABLE(wxNotebookPageInfo)
wxEND_HANDLERS_TABLE()

wxCONSTRUCTOR_4( wxNotebookPageInfo , wxNotebookPage* , Page , wxString , Text , bool , Selected , int , ImageId )

#else
IMPLEMENT_DYNAMIC_CLASS(wxNotebook, wxControl)
IMPLEMENT_DYNAMIC_CLASS(wxNotebookPageInfo, wxObject )
#endif
IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)

// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// wxNotebook construction
// ----------------------------------------------------------------------------

const wxNotebookPageInfoList& wxNotebook::GetPageInfos() const
{
    wxNotebookPageInfoList* list = const_cast< wxNotebookPageInfoList* >( &m_pageInfos ) ;
    WX_CLEAR_LIST( wxNotebookPageInfoList , *list ) ;
    for( size_t i = 0 ; i < GetPageCount() ; ++i )
    {
        wxNotebookPageInfo *info = new wxNotebookPageInfo() ;
        info->Create( const_cast<wxNotebook*>(this)->GetPage(i) , GetPageText(i) , GetSelection() == int(i) , GetPageImage(i) ) ;
        list->Append( info ) ;
    }
    return m_pageInfos ;
}

// common part of all ctors
void wxNotebook::Init()
{
  m_imageList = NULL;
  m_nSelection = -1;

#if wxUSE_UXTHEME
  m_hbrBackground = NULL;
#endif // wxUSE_UXTHEME

#if USE_NOTEBOOK_ANTIFLICKER
  m_hasSubclassedUpdown = false;
#endif // USE_NOTEBOOK_ANTIFLICKER
}

// default for dynamic class
wxNotebook::wxNotebook()
{
  Init();
}

// the same arguments as for wxControl
wxNotebook::wxNotebook(wxWindow *parent,
                       wxWindowID id,
                       const wxPoint& pos,
                       const wxSize& size,
                       long style,
                       const wxString& name)
{
  Init();

  Create(parent, id, pos, size, style, name);
}

// Create() function
bool wxNotebook::Create(wxWindow *parent,
                        wxWindowID id,
                        const wxPoint& pos,
                        const wxSize& size,
                        long style,
                        const wxString& name)
{
#ifdef __WXWINCE__
    // Not sure why, but without this style, there is no border
    // around the notebook tabs.
    if (style & wxNB_FLAT)
        style |= wxBORDER_SUNKEN;
#endif

#if !wxUSE_UXTHEME 
    // ComCtl32 notebook tabs simply don't work unless they're on top if we have uxtheme, we can
    // work around it later (after control creation), but if we don't have uxtheme, we have to clear
    // those styles
    const int verComCtl32 = wxApp::GetComCtl32Version();
    if ( verComCtl32 == 600 )
    {
        style &= ~(wxNB_BOTTOM | wxNB_LEFT | wxNB_RIGHT);
    }
#endif //wxUSE_UXTHEME

    LPCTSTR className = WC_TABCONTROL;

#if USE_NOTEBOOK_ANTIFLICKER
    // SysTabCtl32 class has natively CS_HREDRAW and CS_VREDRAW enabled and it
    // causes horrible flicker when resizing notebook, so get rid of it by
    // using a class without these styles (but otherwise identical to it)
    if ( !HasFlag(wxFULL_REPAINT_ON_RESIZE) )
    {
        static ClassRegistrar s_clsNotebook;
        if ( !s_clsNotebook.IsInitialized() )
        {
            // get a copy of standard class and modify it
            WNDCLASS wc;

            if ( ::GetClassInfo(NULL, WC_TABCONTROL, &wc) )
            {
                gs_wndprocNotebook =
                    wx_reinterpret_cast(WXFARPROC, wc.lpfnWndProc);
                wc.lpszClassName = wxT("_wx_SysTabCtl32");
                wc.style &= ~(CS_HREDRAW | CS_VREDRAW);
                wc.hInstance = wxGetInstance();
                wc.lpfnWndProc = wxNotebookWndProc;
                s_clsNotebook.Register(wc);
            }
            else
            {
                wxLogLastError(_T("GetClassInfoEx(SysTabCtl32)"));
            }
        }

        // use our custom class if available but fall back to the standard
        // notebook if we failed to register it
        if ( s_clsNotebook.IsRegistered() )
        {
            // it's ok to use c_str() here as the static s_clsNotebook object
            // has sufficiently long lifetime
            className = s_clsNotebook.GetName().c_str();
        }
    }
#endif // USE_NOTEBOOK_ANTIFLICKER

    if ( !CreateControl(parent, id, pos, size, style | wxTAB_TRAVERSAL,
                        wxDefaultValidator, name) )
        return false;

    if ( !MSWCreateControl(className, wxEmptyString, pos, size) )
        return false;

#if wxUSE_UXTHEME
    if ( HasFlag(wxNB_NOPAGETHEME) ||
            wxSystemOptions::IsFalse(wxT("msw.notebook.themed-background")) )
    {
        SetBackgroundColour(GetThemeBackgroundColour());
    }
    else // use themed background by default
    {
        // create backing store
        UpdateBgBrush();
    }
    
    // comctl32.dll 6.0 doesn't support non-top tabs with visual styles (the
    // control is simply not rendered correctly), so we disable themes
    // if possible, otherwise we simply clear the styles.
    // It's probably not possible to have UXTHEME without ComCtl32 6 or better, but lets
    // check it anyway.
    const int verComCtl32 = wxApp::GetComCtl32Version();
    if ( verComCtl32 == 600 ) 
    {
        // check if we use themes at all -- if we don't, we're still okay
        if ( wxUxThemeEngine::GetIfActive() && (style & (wxNB_BOTTOM|wxNB_LEFT|wxNB_RIGHT)))
        {
            wxUxThemeEngine::GetIfActive()->SetWindowTheme((HWND)this->GetHandle(), L"", L"");
            SetBackgroundColour(GetThemeBackgroundColour());    //correct the background color for the new non-themed control
        }
    }
#endif // wxUSE_UXTHEME

    // Undocumented hack to get flat notebook style
    // In fact, we should probably only do this in some
    // curcumstances, i.e. if we know we will have a border
    // at the bottom (the tab control doesn't draw it itself)
#if defined(__POCKETPC__) || defined(__SMARTPHONE__)
    if (HasFlag(wxNB_FLAT))
    {
        SendMessage(GetHwnd(), CCM_SETVERSION, COMCTL32_VERSION, 0);
        if (!m_hasBgCol)
            SetBackgroundColour(*wxWHITE);
    }
#endif
    return true;
}

WXDWORD wxNotebook::MSWGetStyle(long style, WXDWORD *exstyle) const
{
    WXDWORD tabStyle = wxControl::MSWGetStyle(style, exstyle);

    tabStyle |= WS_TABSTOP | TCS_TABS;

    if ( style & wxNB_MULTILINE )
        tabStyle |= TCS_MULTILINE;
    if ( style & wxNB_FIXEDWIDTH )
        tabStyle |= TCS_FIXEDWIDTH;

    if ( style & wxNB_BOTTOM )
        tabStyle |= TCS_RIGHT;
    else if ( style & wxNB_LEFT )
        tabStyle |= TCS_VERTICAL;
    else if ( style & wxNB_RIGHT )
        tabStyle |= TCS_VERTICAL | TCS_RIGHT;

    // ex style
    if ( exstyle )
    {
        // note that we never want to have the default WS_EX_CLIENTEDGE style
        // as it looks too ugly for the notebooks
        *exstyle = 0;
    }

    return tabStyle;
}

wxNotebook::~wxNotebook()
{
#if wxUSE_UXTHEME
    if ( m_hbrBackground )
        ::DeleteObject((HBRUSH)m_hbrBackground);
#endif // wxUSE_UXTHEME
}

// ----------------------------------------------------------------------------
// wxNotebook accessors
// ----------------------------------------------------------------------------

size_t wxNotebook::GetPageCount() const
{
  // consistency check
  wxASSERT( (int)m_pages.Count() == TabCtrl_GetItemCount(GetHwnd()) );

  return m_pages.Count();
}

int wxNotebook::GetRowCount() const
{
  return TabCtrl_GetRowCount(GetHwnd());
}

int wxNotebook::SetSelection(size_t nPage)
{
  wxCHECK_MSG( IS_VALID_PAGE(nPage), wxNOT_FOUND, wxT("notebook page out of range") );

  if ( int(nPage) != m_nSelection )
  {
    wxNotebookEvent event(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING, m_windowId);
    event.SetSelection(nPage);
    event.SetOldSelection(m_nSelection);
    event.SetEventObject(this);
    if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() )
    {
      // program allows the page change
      event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED);
      (void)GetEventHandler()->ProcessEvent(event);

      TabCtrl_SetCurSel(GetHwnd(), nPage);
    }
  }

  return m_nSelection;
}

bool wxNotebook::SetPageText(size_t nPage, const wxString& strText)
{
    wxCHECK_MSG( IS_VALID_PAGE(nPage), false, wxT("notebook page out of range") );