72 lines
2.7 KiB
C
72 lines
2.7 KiB
C
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///////////////////////////////////////////////////////////////////////////////
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// Name: tests/drawing/gcfactory.h
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// Purpose: Interface of a factory to create and destroy a wxGraphicsContext
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// and finally save the result of a rendering test
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// Author: Armel Asselin
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// Created: 2014-02-26
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// Copyright: (c) 2014 Ellié Computing <opensource@elliecomputing.com>
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_TESTS_GCFACTORY_H_
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#define _WX_TESTS_GCFACTORY_H_
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// wxCairoRenderer::CreateMeasuringContext() is not implement for wxX11
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#if wxUSE_GRAPHICS_CONTEXT && !defined(__WXX11__)
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#include "wx/graphics.h"
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#define wxUSE_TEST_GC_DRAWING 1
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#else
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#define wxUSE_TEST_GC_DRAWING 0
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#endif
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#if wxUSE_TEST_GC_DRAWING
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#include "wx/filename.h"
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class WXDLLIMPEXP_FWD_CORE wxGraphicsContext;
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// Implement a class derived from this one to let the drawing test create
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// graphics context, save them and destroy them.
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class DrawingTestGCFactory
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{
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public:
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virtual ~DrawingTestGCFactory() {}
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// This identifier is used in the test and reference files to distinguish
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// results produced by wxGraphicsContext generated by this factory
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// use only lower case latin letters, '_' and '-'
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virtual wxString GetIdForFileName () const = 0;
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// This is the extension used when saving test and reference files
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virtual wxString GetExtensionForFileName () const = 0;
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// Returns true if a pixel per pixel comparison of rendered image should
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// be used rather than a byte by byte comparison of files
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virtual bool UseImageComparison() const = 0;
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// Returns true this target is platform independent, rendering exactly
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// the same result for whichever platform
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virtual bool PlatformIndependent() const = 0;
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// Builds a new context of @c expected_size, expecting to save it as
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// @c target_file_name
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// NB: only one context is created as a time, so that the implementer
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// can keep internal state if necessary
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virtual wxGraphicsContext *BuildNewContext (wxSize expectedSize,
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double pointsPerInch, const wxFileName &targetFileName) = 0;
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// Let's the opportunity to actually save the context and associated data
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// If saving requires deleting the wxGraphicsContext object the
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// implementer is free to do it but @c gc must then be nulled
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virtual void SaveBuiltContext (wxGraphicsContext *&gc) = 0;
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// Cleans @c gc and internal data if any
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virtual void CleanUp (wxGraphicsContext *gc) = 0;
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};
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typedef DrawingTestGCFactory * (*CreateDrawingTestLifeCycleFunction)();
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typedef void (*DestroyDrawingTestLifeCycleFunction) (DrawingTestGCFactory* lc);
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#endif // wxUSE_TEST_GC_DRAWING
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#endif // #ifndef _WX_TESTS_GCFACTORY_H_
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