110 lines
4.8 KiB
C
110 lines
4.8 KiB
C
/* EINA - EFL data type library
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* Copyright (C) 2007-2008 Jorge Luis Zapata Muga
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library;
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* if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef EINA_RECTANGLE_H_
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#define EINA_RECTANGLE_H_
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#include "eina_types.h"
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/**
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* @addtogroup Eina_Tools_Group Tools
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*
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* @{
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*/
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/**
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* @defgroup Eina_Rectangle_Group Rectangle
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*
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* @{
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*/
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/**
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* @typedef Eina_Rectangle
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* Simple rectangle structure.
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*/
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typedef struct _Eina_Rectangle
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{
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int x; /**< top-left x co-ordinate of rectangle */
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int y; /**< top-left y co-ordinate of rectangle */
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int w; /**< width of rectangle */
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int h; /**< height of rectangle */
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} Eina_Rectangle;
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/**
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* @typedef Eina_Rectangle_Pool
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* Type for an opaque pool of rectangle.
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*/
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typedef struct _Eina_Rectangle_Pool Eina_Rectangle_Pool;
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static inline int eina_spans_intersect(int c1, int l1, int c2, int l2) EINA_WARN_UNUSED_RESULT;
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static inline Eina_Bool eina_rectangle_is_empty(const Eina_Rectangle *r) EINA_ARG_NONNULL(1) EINA_WARN_UNUSED_RESULT;
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static inline void eina_rectangle_coords_from(Eina_Rectangle *r, int x, int y, int w, int h) EINA_ARG_NONNULL(1);
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static inline Eina_Bool eina_rectangles_intersect(const Eina_Rectangle *r1, const Eina_Rectangle *r2) EINA_ARG_NONNULL(1, 2) EINA_WARN_UNUSED_RESULT;
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static inline Eina_Bool eina_rectangle_xcoord_inside(const Eina_Rectangle *r, int x) EINA_ARG_NONNULL(1) EINA_WARN_UNUSED_RESULT;
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static inline Eina_Bool eina_rectangle_ycoord_inside(const Eina_Rectangle *r, int y) EINA_ARG_NONNULL(1) EINA_WARN_UNUSED_RESULT;
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static inline Eina_Bool eina_rectangle_coords_inside(const Eina_Rectangle *r, int x, int y) EINA_ARG_NONNULL(1) EINA_WARN_UNUSED_RESULT;
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static inline void eina_rectangle_union(Eina_Rectangle *dst, const Eina_Rectangle *src) EINA_ARG_NONNULL(1, 2);
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static inline Eina_Bool eina_rectangle_intersection(Eina_Rectangle *dst, const Eina_Rectangle *src) EINA_ARG_NONNULL(1, 2) EINA_WARN_UNUSED_RESULT;
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static inline void eina_rectangle_rescale_in(const Eina_Rectangle *out, const Eina_Rectangle *in, Eina_Rectangle *res) EINA_ARG_NONNULL(1, 2, 3);
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static inline void eina_rectangle_rescale_out(const Eina_Rectangle *out, const Eina_Rectangle *in, Eina_Rectangle *res) EINA_ARG_NONNULL(1, 2, 3);
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EAPI Eina_Rectangle_Pool * eina_rectangle_pool_new(int w, int h) EINA_MALLOC EINA_WARN_UNUSED_RESULT;
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EAPI Eina_Rectangle_Pool * eina_rectangle_pool_get(Eina_Rectangle *rect) EINA_WARN_UNUSED_RESULT EINA_ARG_NONNULL(1);
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EAPI Eina_Bool eina_rectangle_pool_geometry_get(Eina_Rectangle_Pool *pool, int *w, int *h) EINA_WARN_UNUSED_RESULT EINA_ARG_NONNULL(1) EINA_WARN_UNUSED_RESULT;
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EAPI void * eina_rectangle_pool_data_get(Eina_Rectangle_Pool *pool) EINA_WARN_UNUSED_RESULT EINA_ARG_NONNULL(1);
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EAPI void eina_rectangle_pool_data_set(Eina_Rectangle_Pool *pool, const void *data) EINA_ARG_NONNULL(1);
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EAPI void eina_rectangle_pool_free(Eina_Rectangle_Pool *pool) EINA_ARG_NONNULL(1);
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EAPI int eina_rectangle_pool_count(Eina_Rectangle_Pool *pool) EINA_ARG_NONNULL(1) EINA_WARN_UNUSED_RESULT;
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EAPI Eina_Rectangle * eina_rectangle_pool_request(Eina_Rectangle_Pool *pool, int w, int h) EINA_WARN_UNUSED_RESULT EINA_ARG_NONNULL(1);
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EAPI void eina_rectangle_pool_release(Eina_Rectangle *rect) EINA_ARG_NONNULL(1);
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/**
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* @def EINA_RECTANGLE_SET
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* @brief Macro to set the values of a #Eina_Rectangle.
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*
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* @param Rectangle The rectangle to set the values.
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* @param X The X coordinate of the top left corner of the rectangle.
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* @param Y The Y coordinate of the top left corner of the rectangle.
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* @param W The width of the rectangle.
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* @param H The height of the rectangle.
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*
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* This macro set the values of @p Rectangle. (@p X, @p Y) is the
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* coordinates of the top left corner of @p Rectangle, @p W is its
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* width and @p H is its height.
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*/
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#define EINA_RECTANGLE_SET(Rectangle, X, Y, W, H) \
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(Rectangle)->x = X; \
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(Rectangle)->y = Y; \
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(Rectangle)->w = W; \
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(Rectangle)->h = H;
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EAPI Eina_Rectangle *eina_rectangle_new(int x, int y, int w, int h) EINA_MALLOC EINA_WARN_UNUSED_RESULT;
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EAPI void eina_rectangle_free(Eina_Rectangle *rect) EINA_ARG_NONNULL(1);
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#include "eina_inline_rectangle.x"
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/**
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* @}
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*/
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/**
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* @}
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*/
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#endif /*_EINA_RECTANGLE_H_*/
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