01f9accd19
This port is not used and is not being worked on, so remove it to reduce the amount of the code which needs to be updated for every global change. Also remove tests for VisualAge compiler which isn't used since ages. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76533 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__)
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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__)
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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 wxOVERRIDE
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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 wxOVERRIDE
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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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