157 lines
		
	
	
		
			4.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			157 lines
		
	
	
		
			4.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
///////////////////////////////////////////////////////////////////////////////
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// Name:        wx/msw/menuitem.h
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// Purpose:     wxMenuItem class
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// Author:      Vadim Zeitlin
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// Modified by:
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// Created:     11.11.97
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// Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// Licence:     wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef   _MENUITEM_H
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#define   _MENUITEM_H
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "wx/bitmap.h"
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#if wxUSE_OWNER_DRAWN
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    #include "wx/ownerdrw.h"
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    struct tagRECT;
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#endif
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// ----------------------------------------------------------------------------
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// wxMenuItem: an item in the menu, optionally implements owner-drawn behaviour
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxMenuItem : public wxMenuItemBase
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#if wxUSE_OWNER_DRAWN
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                             , public wxOwnerDrawn
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#endif
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{
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public:
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    // ctor & dtor
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    wxMenuItem(wxMenu *parentMenu = NULL,
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               int id = wxID_SEPARATOR,
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               const wxString& name = wxEmptyString,
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               const wxString& help = wxEmptyString,
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               wxItemKind kind = wxITEM_NORMAL,
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               wxMenu *subMenu = NULL);
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    virtual ~wxMenuItem();
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    // override base class virtuals
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    virtual void SetItemLabel(const wxString& strName) wxOVERRIDE;
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    virtual void Enable(bool bDoEnable = true) wxOVERRIDE;
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    virtual void Check(bool bDoCheck = true) wxOVERRIDE;
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    virtual bool IsChecked() const wxOVERRIDE;
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    // unfortunately needed to resolve ambiguity between
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    // wxMenuItemBase::IsCheckable() and wxOwnerDrawn::IsCheckable()
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    bool IsCheckable() const { return wxMenuItemBase::IsCheckable(); }
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    // the id for a popup menu is really its menu handle (as required by
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    // ::AppendMenu() API), so this function will return either the id or the
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    // menu handle depending on what we are
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    //
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    // notice that it also returns the id as an unsigned int, as required by
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    // Win32 API
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    WXWPARAM GetMSWId() const;
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#if WXWIN_COMPATIBILITY_2_8
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    // compatibility only, don't use in new code
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    wxDEPRECATED(
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    wxMenuItem(wxMenu *parentMenu,
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               int id,
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               const wxString& text,
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               const wxString& help,
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               bool isCheckable,
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               wxMenu *subMenu = NULL)
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    );
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#endif
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    void SetBitmaps(const wxBitmap& bmpChecked,
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                    const wxBitmap& bmpUnchecked = wxNullBitmap)
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    {
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        DoSetBitmap(bmpChecked, true);
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        DoSetBitmap(bmpUnchecked, false);
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    }
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    void SetBitmap(const wxBitmap& bmp, bool bChecked = true)
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    {
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        DoSetBitmap(bmp, bChecked);
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    }
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    const wxBitmap& GetBitmap(bool bChecked = true) const
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        { return (bChecked ? m_bmpChecked : m_bmpUnchecked); }
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#if wxUSE_OWNER_DRAWN
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    void SetDisabledBitmap(const wxBitmap& bmpDisabled)
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    {
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        m_bmpDisabled = bmpDisabled;
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        SetOwnerDrawn(true);
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    }
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    const wxBitmap& GetDisabledBitmap() const
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        { return m_bmpDisabled; }
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    int MeasureAccelWidth() const;
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    // override wxOwnerDrawn base class virtuals
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    virtual wxString GetName() const wxOVERRIDE;
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    virtual bool OnMeasureItem(size_t *pwidth, size_t *pheight) wxOVERRIDE;
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    virtual bool OnDrawItem(wxDC& dc, const wxRect& rc, wxODAction act, wxODStatus stat) wxOVERRIDE;
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protected:
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    virtual void GetFontToUse(wxFont& font) const wxOVERRIDE;
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    virtual void GetColourToUse(wxODStatus stat, wxColour& colText, wxColour& colBack) const wxOVERRIDE;
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private:
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    // helper function for draw std menu check mark
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    void DrawStdCheckMark(WXHDC hdc, const tagRECT* rc, wxODStatus stat);
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    // helper function to determine if the item must be owner-drawn
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    bool MSWMustUseOwnerDrawn();
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#endif // wxUSE_OWNER_DRAWN
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    enum BitmapKind
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    {
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        Normal,
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        Checked,
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        Unchecked
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    };
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    // helper function to get a handle for bitmap associated with item
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    WXHBITMAP GetHBitmapForMenu(BitmapKind kind) const;
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    // helper function to set/change the bitmap
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    void DoSetBitmap(const wxBitmap& bmp, bool bChecked);
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private:
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    // common part of all ctors
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    void Init();
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    // Return the item position in the menu containing it.
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    //
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    // Returns -1 if the item is not attached to a menu or if we can't find its
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    // position (which is not really supposed to ever happen).
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    int MSGetMenuItemPos() const;
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    // item bitmaps
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    wxBitmap m_bmpChecked,     // bitmap to put near the item
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             m_bmpUnchecked;   // (checked is used also for 'uncheckable' items)
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#if wxUSE_OWNER_DRAWN
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    wxBitmap m_bmpDisabled;
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#endif // wxUSE_OWNER_DRAWN
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    // Give wxMenu access to our MSWMustUseOwnerDrawn() and GetHBitmapForMenu().
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    friend class wxMenu;
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    wxDECLARE_DYNAMIC_CLASS_NO_COPY(wxMenuItem);
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};
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#endif  //_MENUITEM_H
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