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								SQCSim2021/external/sfml251-32/include/SFML/Graphics/Shape.hpp
									
									
									
									
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							| @@ -0,0 +1,355 @@ | ||||
| //////////////////////////////////////////////////////////// | ||||
| // | ||||
| // SFML - Simple and Fast Multimedia Library | ||||
| // Copyright (C) 2007-2018 Laurent Gomila (laurent@sfml-dev.org) | ||||
| // | ||||
| // This software is provided 'as-is', without any express or implied warranty. | ||||
| // In no event will the authors be held liable for any damages arising from the use of this software. | ||||
| // | ||||
| // Permission is granted to anyone to use this software for any purpose, | ||||
| // including commercial applications, and to alter it and redistribute it freely, | ||||
| // subject to the following restrictions: | ||||
| // | ||||
| // 1. The origin of this software must not be misrepresented; | ||||
| //    you must not claim that you wrote the original software. | ||||
| //    If you use this software in a product, an acknowledgment | ||||
| //    in the product documentation would be appreciated but is not required. | ||||
| // | ||||
| // 2. Altered source versions must be plainly marked as such, | ||||
| //    and must not be misrepresented as being the original software. | ||||
| // | ||||
| // 3. This notice may not be removed or altered from any source distribution. | ||||
| // | ||||
| //////////////////////////////////////////////////////////// | ||||
|  | ||||
| #ifndef SFML_SHAPE_HPP | ||||
| #define SFML_SHAPE_HPP | ||||
|  | ||||
| //////////////////////////////////////////////////////////// | ||||
| // Headers | ||||
| //////////////////////////////////////////////////////////// | ||||
| #include <SFML/Graphics/Export.hpp> | ||||
| #include <SFML/Graphics/Drawable.hpp> | ||||
| #include <SFML/Graphics/Transformable.hpp> | ||||
| #include <SFML/Graphics/VertexArray.hpp> | ||||
| #include <SFML/System/Vector2.hpp> | ||||
|  | ||||
|  | ||||
| namespace sf | ||||
| { | ||||
| //////////////////////////////////////////////////////////// | ||||
| /// \brief Base class for textured shapes with outline | ||||
| /// | ||||
| //////////////////////////////////////////////////////////// | ||||
| class SFML_GRAPHICS_API Shape : public Drawable, public Transformable | ||||
| { | ||||
| public: | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Virtual destructor | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     virtual ~Shape(); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Change the source texture of the shape | ||||
|     /// | ||||
|     /// The \a texture argument refers to a texture that must | ||||
|     /// exist as long as the shape uses it. Indeed, the shape | ||||
|     /// doesn't store its own copy of the texture, but rather keeps | ||||
|     /// a pointer to the one that you passed to this function. | ||||
|     /// If the source texture is destroyed and the shape tries to | ||||
|     /// use it, the behavior is undefined. | ||||
|     /// \a texture can be NULL to disable texturing. | ||||
|     /// If \a resetRect is true, the TextureRect property of | ||||
|     /// the shape is automatically adjusted to the size of the new | ||||
|     /// texture. If it is false, the texture rect is left unchanged. | ||||
|     /// | ||||
|     /// \param texture   New texture | ||||
|     /// \param resetRect Should the texture rect be reset to the size of the new texture? | ||||
|     /// | ||||
|     /// \see getTexture, setTextureRect | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void setTexture(const Texture* texture, bool resetRect = false); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Set the sub-rectangle of the texture that the shape will display | ||||
|     /// | ||||
|     /// The texture rect is useful when you don't want to display | ||||
|     /// the whole texture, but rather a part of it. | ||||
|     /// By default, the texture rect covers the entire texture. | ||||
|     /// | ||||
|     /// \param rect Rectangle defining the region of the texture to display | ||||
|     /// | ||||
|     /// \see getTextureRect, setTexture | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void setTextureRect(const IntRect& rect); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Set the fill color of the shape | ||||
|     /// | ||||
|     /// This color is modulated (multiplied) with the shape's | ||||
|     /// texture if any. It can be used to colorize the shape, | ||||
|     /// or change its global opacity. | ||||
|     /// You can use sf::Color::Transparent to make the inside of | ||||
|     /// the shape transparent, and have the outline alone. | ||||
|     /// By default, the shape's fill color is opaque white. | ||||
|     /// | ||||
|     /// \param color New color of the shape | ||||
|     /// | ||||
|     /// \see getFillColor, setOutlineColor | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void setFillColor(const Color& color); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Set the outline color of the shape | ||||
|     /// | ||||
|     /// By default, the shape's outline color is opaque white. | ||||
|     /// | ||||
|     /// \param color New outline color of the shape | ||||
|     /// | ||||
|     /// \see getOutlineColor, setFillColor | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void setOutlineColor(const Color& color); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Set the thickness of the shape's outline | ||||
|     /// | ||||
|     /// Note that negative values are allowed (so that the outline | ||||
|     /// expands towards the center of the shape), and using zero | ||||
|     /// disables the outline. | ||||
|     /// By default, the outline thickness is 0. | ||||
|     /// | ||||
|     /// \param thickness New outline thickness | ||||
|     /// | ||||
|     /// \see getOutlineThickness | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void setOutlineThickness(float thickness); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the source texture of the shape | ||||
|     /// | ||||
|     /// If the shape has no source texture, a NULL pointer is returned. | ||||
|     /// The returned pointer is const, which means that you can't | ||||
|     /// modify the texture when you retrieve it with this function. | ||||
|     /// | ||||
|     /// \return Pointer to the shape's texture | ||||
|     /// | ||||
|     /// \see setTexture | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     const Texture* getTexture() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the sub-rectangle of the texture displayed by the shape | ||||
|     /// | ||||
|     /// \return Texture rectangle of the shape | ||||
|     /// | ||||
|     /// \see setTextureRect | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     const IntRect& getTextureRect() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the fill color of the shape | ||||
|     /// | ||||
|     /// \return Fill color of the shape | ||||
|     /// | ||||
|     /// \see setFillColor | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     const Color& getFillColor() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the outline color of the shape | ||||
|     /// | ||||
|     /// \return Outline color of the shape | ||||
|     /// | ||||
|     /// \see setOutlineColor | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     const Color& getOutlineColor() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the outline thickness of the shape | ||||
|     /// | ||||
|     /// \return Outline thickness of the shape | ||||
|     /// | ||||
|     /// \see setOutlineThickness | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     float getOutlineThickness() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the total number of points of the shape | ||||
|     /// | ||||
|     /// \return Number of points of the shape | ||||
|     /// | ||||
|     /// \see getPoint | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     virtual std::size_t getPointCount() const = 0; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get a point of the shape | ||||
|     /// | ||||
|     /// The returned point is in local coordinates, that is, | ||||
|     /// the shape's transforms (position, rotation, scale) are | ||||
|     /// not taken into account. | ||||
|     /// The result is undefined if \a index is out of the valid range. | ||||
|     /// | ||||
|     /// \param index Index of the point to get, in range [0 .. getPointCount() - 1] | ||||
|     /// | ||||
|     /// \return index-th point of the shape | ||||
|     /// | ||||
|     /// \see getPointCount | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     virtual Vector2f getPoint(std::size_t index) const = 0; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the local bounding rectangle of the entity | ||||
|     /// | ||||
|     /// The returned rectangle is in local coordinates, which means | ||||
|     /// that it ignores the transformations (translation, rotation, | ||||
|     /// scale, ...) that are applied to the entity. | ||||
|     /// In other words, this function returns the bounds of the | ||||
|     /// entity in the entity's coordinate system. | ||||
|     /// | ||||
|     /// \return Local bounding rectangle of the entity | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     FloatRect getLocalBounds() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the global (non-minimal) bounding rectangle of the entity | ||||
|     /// | ||||
|     /// The returned rectangle is in global coordinates, which means | ||||
|     /// that it takes into account the transformations (translation, | ||||
|     /// rotation, scale, ...) that are applied to the entity. | ||||
|     /// In other words, this function returns the bounds of the | ||||
|     /// shape in the global 2D world's coordinate system. | ||||
|     /// | ||||
|     /// This function does not necessarily return the \a minimal | ||||
|     /// bounding rectangle. It merely ensures that the returned | ||||
|     /// rectangle covers all the vertices (but possibly more). | ||||
|     /// This allows for a fast approximation of the bounds as a | ||||
|     /// first check; you may want to use more precise checks | ||||
|     /// on top of that. | ||||
|     /// | ||||
|     /// \return Global bounding rectangle of the entity | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     FloatRect getGlobalBounds() const; | ||||
|  | ||||
| protected: | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Default constructor | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     Shape(); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Recompute the internal geometry of the shape | ||||
|     /// | ||||
|     /// This function must be called by the derived class everytime | ||||
|     /// the shape's points change (i.e. the result of either | ||||
|     /// getPointCount or getPoint is different). | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void update(); | ||||
|  | ||||
| private: | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Draw the shape to a render target | ||||
|     /// | ||||
|     /// \param target Render target to draw to | ||||
|     /// \param states Current render states | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     virtual void draw(RenderTarget& target, RenderStates states) const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Update the fill vertices' color | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void updateFillColors(); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Update the fill vertices' texture coordinates | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void updateTexCoords(); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Update the outline vertices' position | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void updateOutline(); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Update the outline vertices' color | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void updateOutlineColors(); | ||||
|  | ||||
| private: | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     // Member data | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     const Texture* m_texture;          ///< Texture of the shape | ||||
|     IntRect        m_textureRect;      ///< Rectangle defining the area of the source texture to display | ||||
|     Color          m_fillColor;        ///< Fill color | ||||
|     Color          m_outlineColor;     ///< Outline color | ||||
|     float          m_outlineThickness; ///< Thickness of the shape's outline | ||||
|     VertexArray    m_vertices;         ///< Vertex array containing the fill geometry | ||||
|     VertexArray    m_outlineVertices;  ///< Vertex array containing the outline geometry | ||||
|     FloatRect      m_insideBounds;     ///< Bounding rectangle of the inside (fill) | ||||
|     FloatRect      m_bounds;           ///< Bounding rectangle of the whole shape (outline + fill) | ||||
| }; | ||||
|  | ||||
| } // namespace sf | ||||
|  | ||||
|  | ||||
| #endif // SFML_SHAPE_HPP | ||||
|  | ||||
|  | ||||
| //////////////////////////////////////////////////////////// | ||||
| /// \class sf::Shape | ||||
| /// \ingroup graphics | ||||
| /// | ||||
| /// sf::Shape is a drawable class that allows to define and | ||||
| /// display a custom convex shape on a render target. | ||||
| /// It's only an abstract base, it needs to be specialized for | ||||
| /// concrete types of shapes (circle, rectangle, convex polygon, | ||||
| /// star, ...). | ||||
| /// | ||||
| /// In addition to the attributes provided by the specialized | ||||
| /// shape classes, a shape always has the following attributes: | ||||
| /// \li a texture | ||||
| /// \li a texture rectangle | ||||
| /// \li a fill color | ||||
| /// \li an outline color | ||||
| /// \li an outline thickness | ||||
| /// | ||||
| /// Each feature is optional, and can be disabled easily: | ||||
| /// \li the texture can be null | ||||
| /// \li the fill/outline colors can be sf::Color::Transparent | ||||
| /// \li the outline thickness can be zero | ||||
| /// | ||||
| /// You can write your own derived shape class, there are only | ||||
| /// two virtual functions to override: | ||||
| /// \li getPointCount must return the number of points of the shape | ||||
| /// \li getPoint must return the points of the shape | ||||
| /// | ||||
| /// \see sf::RectangleShape, sf::CircleShape, sf::ConvexShape, sf::Transformable | ||||
| /// | ||||
| //////////////////////////////////////////////////////////// | ||||
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