avoiding crash for pure modifier events

[wxWidgets.git] / include / wx / msw / notebook.h

/////////////////////////////////////////////////////////////////////////////
// Name:        wx/msw/notebook.h
// Purpose:     MSW/GTK compatible notebook (a.k.a. property sheet)
// Author:      Robert Roebling
// Modified by: Vadim Zeitlin for Windows version
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _NOTEBOOK_H
#define _NOTEBOOK_H

#if wxUSE_NOTEBOOK

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

#include "wx/control.h"

// ----------------------------------------------------------------------------
// wxNotebook
// ----------------------------------------------------------------------------

class WXDLLIMPEXP_CORE wxNotebookPageInfo : public wxObject
{
public :
    wxNotebookPageInfo() { m_page = NULL; m_imageId = -1; m_selected = false; }
    virtual ~wxNotebookPageInfo() { }

    void Create(wxNotebookPage *page,
                const wxString& text,
                bool selected,
                int imageId)
    {
        m_page = page;
        m_text = text;
        m_selected = selected;
        m_imageId = imageId;
    }

    wxNotebookPage* GetPage() const { return m_page; }
    wxString GetText() const { return m_text; }
    bool GetSelected() const { return m_selected; }
    int GetImageId() const { return m_imageId; }

private:
    wxNotebookPage *m_page;
    wxString m_text;
    bool m_selected;
    int m_imageId;

    DECLARE_DYNAMIC_CLASS(wxNotebookPageInfo)
};


WX_DECLARE_EXPORTED_LIST(wxNotebookPageInfo, wxNotebookPageInfoList );

class WXDLLIMPEXP_CORE wxNotebook : public wxNotebookBase
{
public:
  // ctors
  // -----
    // default for dynamic class
  wxNotebook();
    // the same arguments as for wxControl (@@@ any special styles?)
  wxNotebook(wxWindow *parent,
             wxWindowID id,
             const wxPoint& pos = wxDefaultPosition,
             const wxSize& size = wxDefaultSize,
             long style = 0,
             const wxString& name = wxNotebookNameStr);
    // Create() function
  bool Create(wxWindow *parent,
              wxWindowID id,
              const wxPoint& pos = wxDefaultPosition,
              const wxSize& size = wxDefaultSize,
              long style = 0,
              const wxString& name = wxNotebookNameStr);
  virtual ~wxNotebook();

  // accessors
  // ---------
    // get number of pages in the dialog
  virtual size_t GetPageCount() const;

    // set the currently selected page, return the index of the previously
    // selected one (or -1 on error)
    // NB: this function will _not_ generate wxEVT_NOTEBOOK_PAGE_xxx events
  int SetSelection(size_t nPage);
    // get the currently selected page
  int GetSelection() const { return m_nSelection; }

    // changes selected page without sending events
  int ChangeSelection(size_t nPage);

    // set/get the title of a page
  bool SetPageText(size_t nPage, const wxString& strText);
  wxString GetPageText(size_t nPage) const;

  // image list stuff: each page may have an image associated with it. All
  // the images belong to an image list, so you have to
  // 1) create an image list
  // 2) associate it with the notebook
  // 3) set for each page it's image
    // associate image list with a control
  void SetImageList(wxImageList* imageList);

    // sets/returns item's image index in the current image list
  int  GetPageImage(size_t nPage) const;
  bool SetPageImage(size_t nPage, int nImage);

    // currently it's always 1 because wxGTK doesn't support multi-row
    // tab controls
  int GetRowCount() const;

  // control the appearance of the notebook pages
    // set the size (the same for all pages)
  void SetPageSize(const wxSize& size);
    // set the padding between tabs (in pixels)
  void SetPadding(const wxSize& padding);

  // operations
  // ----------
    // remove all pages
  bool DeleteAllPages();

    // inserts a new page to the notebook (it will be deleted ny the notebook,
    // don't delete it yourself). If bSelect, this page becomes active.
  bool InsertPage(size_t nPage,
                  wxNotebookPage *pPage,
                  const wxString& strText,
                  bool bSelect = false,
                  int imageId = -1);

  void AddPageInfo( wxNotebookPageInfo* info ) { AddPage( info->GetPage() , info->GetText() , info->GetSelected() , info->GetImageId() ); }
  const wxNotebookPageInfoList& GetPageInfos() const;

    // Windows-only at present. Also, you must use the wxNB_FIXEDWIDTH
    // style.
  void SetTabSize(const wxSize& sz);

    // hit test
  virtual int HitTest(const wxPoint& pt, long *flags = NULL) const;

    // calculate the size of the notebook from the size of its page
  virtual wxSize CalcSizeFromPage(const wxSize& sizePage) const;

  // callbacks
  // ---------
  void OnSize(wxSizeEvent& event);
  void OnSelChange(wxBookCtrlEvent& event);
  void OnNavigationKey(wxNavigationKeyEvent& event);

  // base class virtuals
  // -------------------

  virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
  virtual bool MSWOnScroll(int orientation, WXWORD nSBCode,
                           WXWORD pos, WXHWND control);

#if wxUSE_CONSTRAINTS
  virtual void SetConstraintSizes(bool recurse = true);
  virtual bool DoPhase(int nPhase);
#endif // wxUSE_CONSTRAINTS

  // Attempts to get colour for UX theme page background
  wxColour GetThemeBackgroundColour() const;

  // implementation only
  // -------------------

#if wxUSE_UXTHEME
  virtual bool SetBackgroundColour(const wxColour& colour)
  {
      if ( !wxNotebookBase::SetBackgroundColour(colour) )
          return false;

      UpdateBgBrush();

      return true;
  }

  // return the themed brush for painting our children
  virtual WXHBRUSH MSWGetBgBrushForChild(WXHDC hDC, WXHWND hWnd);

  // draw child background
  virtual bool MSWPrintChild(WXHDC hDC, wxWindow *win);
#endif // wxUSE_UXTHEME

  // translate wxWin styles to the Windows ones
  virtual WXDWORD MSWGetStyle(long flags, WXDWORD *exstyle = NULL) const;

protected:
  // common part of all ctors
  void Init();

  // hides the currently shown page and shows the given one (if not -1) and
  // updates m_nSelection accordingly
  void UpdateSelection(int selNew);

  // remove one page from the notebook, without deleting
  virtual wxNotebookPage *DoRemovePage(size_t nPage);

  // get the page rectangle for the current notebook size
  //
  // returns empty rectangle if an error occurs, do test for it
  wxRect GetPageSize() const;

  // set the size of the given page to fit in the notebook
  void AdjustPageSize(wxNotebookPage *page);

#if wxUSE_UXTHEME
  // gets the bitmap of notebook background and returns a brush from it
  WXHBRUSH QueryBgBitmap();

  // creates the brush to be used for drawing the tab control background
  void UpdateBgBrush();

  // common part of QueryBgBitmap() and MSWPrintChild()
  //
  // if child == NULL, draw background for the entire notebook itself
  bool DoDrawBackground(WXHDC hDC, wxWindow *child = NULL);
#endif // wxUSE_UXTHEME

  // these function are only used for reducing flicker on notebook resize and
  // we don't need to do this for WinCE
#ifndef __WXWINCE__
  void OnEraseBackground(wxEraseEvent& event);
  void OnPaint(wxPaintEvent& event);

  // true if we have already subclassed our updown control
  bool m_hasSubclassedUpdown;
#endif // __WXWINCE__

  // the current selection (-1 if none)
  int m_nSelection;

  wxNotebookPageInfoList m_pageInfos;

#if wxUSE_UXTHEME
  // background brush used to paint the tab control
  WXHBRUSH m_hbrBackground;
#endif // wxUSE_UXTHEME


  DECLARE_DYNAMIC_CLASS_NO_COPY(wxNotebook)
  DECLARE_EVENT_TABLE()
};

#endif // wxUSE_NOTEBOOK

#endif // _NOTEBOOK_H