| | 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: $Id$ |
| | 8 | // Copyright: (c) Julian Smart |
| | 9 | // Licence: wxWindows licence |
| | 10 | ///////////////////////////////////////////////////////////////////////////// |
| | 11 | |
| | 12 | #ifndef _WX_GDIOBJ_H_ |
| | 13 | #define _WX_GDIOBJ_H_ |
| | 14 | |
| | 15 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| | 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: |
| | 39 | wxGDIObject() { m_visible = FALSE; }; |
| | 40 | |
| | 41 | // Creates the resource |
| | 42 | virtual bool RealizeResource() { return FALSE; }; |
| | 43 | |
| | 44 | // Frees the resource |
| | 45 | virtual bool FreeResource(bool WXUNUSED(force) = FALSE) { return FALSE; } |
| | 46 | |
| | 47 | virtual bool IsFree() const { return FALSE; } |
| | 48 | |
| | 49 | bool IsNull() const { return (m_refData == 0); } |
| | 50 | |
| | 51 | // Returns handle. |
| | 52 | virtual WXHANDLE GetResourceHandle() const { return 0; } |
| | 53 | |
| | 54 | virtual bool GetVisible() { return m_visible; } |
| | 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_ |
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