a393271f04
Added explicit copy/move constructor/operator Added Expand method Added Insert overloads (you are now able to query which rectangles were inserted) Made occupancy computation more precise Overloaded methods taking a unsigned int pair with Vector2ui Former-commit-id: f063c04a1aea0d26594db642c2466264fe139450
86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
// Copyright (C) 2014 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Core module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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// Implémentation originale de Jukka Jylänki (Merci de sa contribution au domaine public)
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// http://clb.demon.fi/projects/even-more-rectangle-bin-packing
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#pragma once
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#ifndef NAZARA_GUILLOTINEBINPACK_HPP
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#define NAZARA_GUILLOTINEBINPACK_HPP
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#include <Nazara/Prerequesites.hpp>
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#include <Nazara/Core/SparsePtr.hpp>
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#include <Nazara/Math/Rect.hpp>
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#include <vector>
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class NAZARA_API NzGuillotineBinPack
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{
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public:
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enum FreeRectChoiceHeuristic
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{
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RectBestAreaFit,
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RectBestLongSideFit,
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RectBestShortSideFit,
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RectWorstAreaFit,
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RectWorstLongSideFit,
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RectWorstShortSideFit
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};
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enum GuillotineSplitHeuristic
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{
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SplitLongerAxis,
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SplitLongerLeftoverAxis,
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SplitMaximizeArea,
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SplitMinimizeArea,
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SplitShorterAxis,
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SplitShorterLeftoverAxis
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};
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NzGuillotineBinPack();
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NzGuillotineBinPack(unsigned int width, unsigned int height);
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NzGuillotineBinPack(const NzVector2ui& size);
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NzGuillotineBinPack(const NzGuillotineBinPack&) = default;
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NzGuillotineBinPack(NzGuillotineBinPack&&) = default;
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~NzGuillotineBinPack() = default;
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void Clear();
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void Expand(unsigned int newWidth, unsigned newHeight);
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void Expand(const NzVector2ui& newSize);
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void FreeRectangle(const NzRectui& rect);
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unsigned int GetHeight() const;
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float GetOccupancy() const;
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NzVector2ui GetSize() const;
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unsigned int GetWidth() const;
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bool Insert(NzRectui* rects, unsigned int count, bool merge, FreeRectChoiceHeuristic rectChoice, GuillotineSplitHeuristic splitMethod);
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bool Insert(NzRectui* rects, bool* flipped, unsigned int count, bool merge, FreeRectChoiceHeuristic rectChoice, GuillotineSplitHeuristic splitMethod);
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bool Insert(NzRectui* rects, bool* flipped, bool* inserted, unsigned int count, bool merge, FreeRectChoiceHeuristic rectChoice, GuillotineSplitHeuristic splitMethod);
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bool MergeFreeRectangles();
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void Reset();
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void Reset(unsigned int width, unsigned int height);
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void Reset(const NzVector2ui& size);
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NzGuillotineBinPack& operator=(const NzGuillotineBinPack&) = default;
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NzGuillotineBinPack& operator=(NzGuillotineBinPack&&) = default;
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private:
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void SplitFreeRectAlongAxis(const NzRectui& freeRect, const NzRectui& placedRect, bool splitHorizontal);
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void SplitFreeRectByHeuristic(const NzRectui& freeRect, const NzRectui& placedRect, GuillotineSplitHeuristic method);
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static int ScoreByHeuristic(int width, int height, const NzRectui& freeRect, FreeRectChoiceHeuristic rectChoice);
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std::vector<NzRectui> m_freeRectangles;
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unsigned int m_height;
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unsigned int m_usedArea;
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unsigned int m_width;
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};
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#endif // NAZARA_GUILLOTINEBINPACK_HPP
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