include/wx/msw/wince/gdiobj.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/gdiobj.h
   3 // Purpose:     wxGDIObject class: base class for other GDI classes
   4 // Author:      Marco Cavallini
   5 // Modified by:
   6 // Created:     11/11/2002
   7 // RCS-ID:
   8 // Copyright:   (c) KOAN SAS ( www.koansoftware.com )
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_GDIOBJ_H_
  13 #define _WX_GDIOBJ_H_
  14
  15
  16 #include "wx/object.h"  // base class
  17
  18 // ----------------------------------------------------------------------------
  19 // wxGDIRefData is the base class for wxXXXData structures which contain the
  20 // real data for the GDI object and are shared among all wxWin objects sharing
  21 // the same native GDI object
  22 // ----------------------------------------------------------------------------
  23
  24 class WXDLLEXPORT wxGDIRefData : public wxObjectRefData
  25 {
  26     // this class is intentionally left blank
  27 };
  28
  29 // ----------------------------------------------------------------------------
  30 // wxGDIObject
  31 // ----------------------------------------------------------------------------
  32
  33 class WXDLLEXPORT wxGDIObject : public wxObject
  34 {
  35 public:
  36     wxGDIObject() { m_visible = FALSE; };
  37
  38     // Creates the resource
  39     virtual bool RealizeResource() { return FALSE; };
  40
  41     // Frees the resource
  42     virtual bool FreeResource(bool WXUNUSED(force) = FALSE) { return FALSE; }
  43
  44     virtual bool IsFree() const { return FALSE; }
  45
  46     bool IsNull() const { return (m_refData == 0); }
  47
  48     // Returns handle.
  49 //    virtual WXHANDLE GetResourceHandle() { return 0; }
  50     WXHANDLE GetResourceHandle() { return 0; }
  51
  52     virtual bool GetVisible() { return m_visible; }
  53     virtual void SetVisible(bool v) { m_visible = v; }
  54
  55 protected:
  56     bool m_visible; // TRUE only if we should delete this object ourselves
  57
  58 private:
  59     DECLARE_DYNAMIC_CLASS(wxGDIObject)
  60 };
  61
  62 #endif
  63     // _WX_GDIOBJ_H_