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-/*
-Open Asset Import Library (assimp)
-----------------------------------------------------------------------
-
-Copyright (c) 2006-2017, assimp team
-
-All rights reserved.
-
-Redistribution and use of this software in source and binary forms,
-with or without modification, are permitted provided that the
-following conditions are met:
-
-* Redistributions of source code must retain the above
- copyright notice, this list of conditions and the
- following disclaimer.
-
-* Redistributions in binary form must reproduce the above
- copyright notice, this list of conditions and the
- following disclaimer in the documentation and/or other
- materials provided with the distribution.
-
-* Neither the name of the assimp team, nor the names of its
- contributors may be used to endorse or promote products
- derived from this software without specific prior
- written permission of the assimp team.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-----------------------------------------------------------------------
-*/
-
-/** @file ProgressHandler.hpp
- * @brief Abstract base class 'ProgressHandler'.
- */
-#pragma once
-#ifndef AI_PROGRESSHANDLER_H_INC
-#define AI_PROGRESSHANDLER_H_INC
-
-#include "types.h"
-
-namespace Assimp {
-
-// ------------------------------------------------------------------------------------
-/** @brief CPP-API: Abstract interface for custom progress report receivers.
- *
- * Each #Importer instance maintains its own #ProgressHandler. The default
- * implementation provided by Assimp doesn't do anything at all. */
-class ASSIMP_API ProgressHandler
-#ifndef SWIG
- : public Intern::AllocateFromAssimpHeap
-#endif
-{
-protected:
- /** @brief Default constructor */
- ProgressHandler () {
- }
-public:
- /** @brief Virtual destructor */
- virtual ~ProgressHandler () {
- }
-
- // -------------------------------------------------------------------
- /** @brief Progress callback.
- * @param percentage An estimate of the current loading progress,
- * in percent. Or -1.f if such an estimate is not available.
- *
- * There are restriction on what you may do from within your
- * implementation of this method: no exceptions may be thrown and no
- * non-const #Importer methods may be called. It is
- * not generally possible to predict the number of callbacks
- * fired during a single import.
- *
- * @return Return false to abort loading at the next possible
- * occasion (loaders and Assimp are generally allowed to perform
- * all needed cleanup tasks prior to returning control to the
- * caller). If the loading is aborted, #Importer::ReadFile()
- * returns always NULL.
- * */
- virtual bool Update(float percentage = -1.f) = 0;
-
- // -------------------------------------------------------------------
- /** @brief Progress callback for file loading steps
- * @param numberOfSteps The number of total post-processing
- * steps
- * @param currentStep The index of the current post-processing
- * step that will run, or equal to numberOfSteps if all of
- * them has finished. This number is always strictly monotone
- * increasing, although not necessarily linearly.
- *
- * @note This is currently only used at the start and the end
- * of the file parsing.
- * */
- virtual void UpdateFileRead(int currentStep /*= 0*/, int numberOfSteps /*= 0*/) {
- float f = numberOfSteps ? currentStep / (float)numberOfSteps : 1.0f;
- Update( f * 0.5f );
- }
-
- // -------------------------------------------------------------------
- /** @brief Progress callback for post-processing steps
- * @param numberOfSteps The number of total post-processing
- * steps
- * @param currentStep The index of the current post-processing
- * step that will run, or equal to numberOfSteps if all of
- * them has finished. This number is always strictly monotone
- * increasing, although not necessarily linearly.
- * */
- virtual void UpdatePostProcess(int currentStep /*= 0*/, int numberOfSteps /*= 0*/) {
- float f = numberOfSteps ? currentStep / (float)numberOfSteps : 1.0f;
- Update( f * 0.5f + 0.5f );
- }
-
-}; // !class ProgressHandler
-// ------------------------------------------------------------------------------------
-} // Namespace Assimp
-
-#endif // AI_PROGRESSHANDLER_H_INC