3f66f6a5b3
This keyword is not expanded by Git which means it's not replaced with the correct revision value in the releases made using git-based scripts and it's confusing to have lines with unexpanded "$Id$" in the released files. As expanding them with Git is not that simple (it could be done with git archive and export-subst attribute) and there are not many benefits in having them in the first place, just remove all these lines. If nothing else, this will make an eventual transition to Git simpler. Closes #14487. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74602 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
93 lines
3.0 KiB
C++
93 lines
3.0 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/gdiobj.h
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// Purpose: wxGDIObject base header
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// Author: Julian Smart
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// Modified by:
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// Created:
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// Copyright: (c) Julian Smart
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// Licence: wxWindows Licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_GDIOBJ_H_BASE_
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#define _WX_GDIOBJ_H_BASE_
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#include "wx/object.h"
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// ----------------------------------------------------------------------------
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// wxGDIRefData is the base class for wxXXXData structures which contain the
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// real data for the GDI object and are shared among all wxWin objects sharing
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// the same native GDI object
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxGDIRefData : public wxObjectRefData
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{
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public:
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// Default ctor which needs to be defined just because we use
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// wxDECLARE_NO_COPY_CLASS() below.
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wxGDIRefData() { }
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// override this in the derived classes to check if this data object is
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// really fully initialized
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virtual bool IsOk() const { return true; }
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private:
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wxDECLARE_NO_COPY_CLASS(wxGDIRefData);
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};
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// ----------------------------------------------------------------------------
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// wxGDIObject: base class for bitmaps, pens, brushes, ...
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxGDIObject : public wxObject
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{
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public:
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// checks if the object can be used
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virtual bool IsOk() const
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{
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// the cast here is safe because the derived classes always create
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// wxGDIRefData objects
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return m_refData && static_cast<wxGDIRefData *>(m_refData)->IsOk();
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}
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// don't use in the new code, use IsOk() instead
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bool IsNull() const { return m_refData == NULL; }
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// older version, for backwards compatibility only (but not deprecated
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// because it's still widely used)
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bool Ok() const { return IsOk(); }
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#if defined(__WXMSW__) || defined(__WXPM__)
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// Creates the resource
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virtual bool RealizeResource() { return false; }
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// Frees the resource
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virtual bool FreeResource(bool WXUNUSED(force) = false) { return false; }
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virtual bool IsFree() const { return false; }
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// Returns handle.
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virtual WXHANDLE GetResourceHandle() const { return 0; }
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#endif // defined(__WXMSW__) || defined(__WXPM__)
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protected:
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// replace base class functions using wxObjectRefData with our own which
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// use wxGDIRefData to ensure that we always work with data objects of the
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// correct type (i.e. derived from wxGDIRefData)
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virtual wxObjectRefData *CreateRefData() const
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{
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return CreateGDIRefData();
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}
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virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const
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{
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return CloneGDIRefData(static_cast<const wxGDIRefData *>(data));
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}
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virtual wxGDIRefData *CreateGDIRefData() const = 0;
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virtual wxGDIRefData *CloneGDIRefData(const wxGDIRefData *data) const = 0;
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DECLARE_DYNAMIC_CLASS(wxGDIObject)
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};
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#endif // _WX_GDIOBJ_H_BASE_
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