forked from enlightenment/efl
107 lines
3.2 KiB
C
107 lines
3.2 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_TILER_H_
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#define EINA_TILER_H_
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#include "eina_types.h"
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#include "eina_iterator.h"
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#include "eina_rectangle.h"
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/**
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* @addtogroup Eina_Data_Types_Group Data Types
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*
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* @{
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*/
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/**
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* @defgroup Eina_Tiler_Group Tiler
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*
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* @{
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*/
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/**
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* @typedef Eina_Tiler
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* Tiler type.
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*/
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typedef struct _Eina_Tiler Eina_Tiler;
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/**
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* @typedef Eina_Tile_Grid_Info
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* Grid type of a tiler.
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*/
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typedef struct Eina_Tile_Grid_Info Eina_Tile_Grid_Info;
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/**
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* @struct Eina_Tile_Grid_Info
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* Grid type of a tiler.
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*/
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struct Eina_Tile_Grid_Info
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{
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unsigned long col; /**< column of the tiler grid */
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unsigned long row; /**< row of the tiler grid*/
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Eina_Rectangle rect; /**< rectangle of the tiler grid*/
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Eina_Bool full; /**< whether the grid is full or not */
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};
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typedef struct _Eina_Tile_Grid_Slicer Eina_Tile_Grid_Slicer;
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EAPI Eina_Tiler *eina_tiler_new(int w, int h);
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EAPI void eina_tiler_free(Eina_Tiler *t);
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EAPI void eina_tiler_tile_size_set(Eina_Tiler *t, int w, int h);
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EAPI Eina_Bool eina_tiler_rect_add(Eina_Tiler *t, const Eina_Rectangle *r);
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EAPI void eina_tiler_rect_del(Eina_Tiler *t, const Eina_Rectangle *r);
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EAPI void eina_tiler_clear(Eina_Tiler *t);
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EAPI Eina_Iterator *eina_tiler_iterator_new(const Eina_Tiler *t);
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/**
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* @brief Creates a new Eina_Iterator that slices over a list of tiles.
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*
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* @param x X axis coordinate.
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* @param y Y axis coordinate.
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* @param w width.
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* @param h height.
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* @param tile_w tile width.
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* @param tile_h tile height.
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* @return A pointer to the Eina_Iterator.
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* @c NULL on failure.
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*
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* The tile grid is defined by @a tile_w and @a tile_h while the region is
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* defined by @a x, @a y, @a w, @a h. The output is given as
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* @c Eina_Tile_Grid_Info where tile index is given in @c col col and
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* @c row row with tile-relative
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* coordinates in @c x, @c y, @c w, @c h. If tile was fully filled by
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* region, then @c full flag
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* is set.
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*/
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EAPI Eina_Iterator *eina_tile_grid_slicer_iterator_new(int x, int y, int w, int h, int tile_w, int tile_h);
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static inline Eina_Bool eina_tile_grid_slicer_next(Eina_Tile_Grid_Slicer *slc, const Eina_Tile_Grid_Info **rect);
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static inline Eina_Bool eina_tile_grid_slicer_setup(Eina_Tile_Grid_Slicer *slc, int x, int y, int w, int h, int tile_w, int tile_h);
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#include "eina_inline_tiler.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_TILER_H_ */
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