1 ///////////////////////////////////////////////////////////////////////////// 2 // Name: wx/msw/gdiobj.h 3 // Purpose: wxGDIObject class: base class for other GDI classes 4 // Author: Julian Smart 5 // Modified by: 6 // Created: 01/02/97 7 // RCS-ID: $Id: gdiobj.h,v 1.1 2006/12/02 15:58:32 scara Exp $ 8 // Copyright: (c) Julian Smart 9 // Licence: wxWindows licence 10 ///////////////////////////////////////////////////////////////////////////// 11 12 #ifndef _WX_GDIOBJ_H_ 13 #define _WX_GDIOBJ_H_ 14 15 #ifdef __GNUG__ 16 #pragma interface "gdiobj.h" 17 #endif 18 19 #include "wx/object.h" // base class 20 21 // ---------------------------------------------------------------------------- 22 // wxGDIRefData is the base class for wxXXXData structures which contain the 23 // real data for the GDI object and are shared among all wxWin objects sharing 24 // the same native GDI object 25 // ---------------------------------------------------------------------------- 26 27 class WXDLLEXPORT wxGDIRefData : public wxObjectRefData 28 { 29 // this class is intentionally left blank 30 }; 31 32 // ---------------------------------------------------------------------------- 33 // wxGDIObject 34 // ---------------------------------------------------------------------------- 35 36 class WXDLLEXPORT wxGDIObject : public wxObject 37 { 38 public: wxGDIObject()39 wxGDIObject() { m_visible = FALSE; }; 40 41 // Creates the resource RealizeResource()42 virtual bool RealizeResource() { return FALSE; }; 43 44 // Frees the resource WXUNUSED(force)45 virtual bool FreeResource(bool WXUNUSED(force) = FALSE) { return FALSE; } 46 IsFree()47 virtual bool IsFree() const { return FALSE; } 48 IsNull()49 bool IsNull() const { return (m_refData == 0); } 50 51 // Returns handle. GetResourceHandle()52 virtual WXHANDLE GetResourceHandle() const { return 0; } 53 GetVisible()54 virtual bool GetVisible() { return m_visible; } SetVisible(bool v)55 virtual void SetVisible(bool v) { m_visible = v; } 56 57 protected: 58 bool m_visible; // TRUE only if we should delete this object ourselves 59 60 private: 61 DECLARE_DYNAMIC_CLASS(wxGDIObject) 62 }; 63 64 #endif 65 // _WX_GDIOBJ_H_ 66