4513abd584
Rename it to Rectangle prefix to avoid confusion with MtkRegion Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3501>
152 lines
4.7 KiB
C
152 lines
4.7 KiB
C
/*
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* Mtk
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*
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* A low-level base library.
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*
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* Copyright (C) 2023 Red Hat
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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 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. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <glib-object.h>
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#include <graphene.h>
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#include "mtk/mtk-macros.h"
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#define MTK_TYPE_RECTANGLE (mtk_rectangle_get_type ())
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typedef enum _MtkRoundingStrategy
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{
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MTK_ROUNDING_STRATEGY_SHRINK,
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MTK_ROUNDING_STRATEGY_GROW,
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MTK_ROUNDING_STRATEGY_ROUND,
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} MtkRoundingStrategy;
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#define MTK_RECTANGLE_MAX_STACK_RECTS 256
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#define MTK_RECTANGLE_CREATE_ARRAY_SCOPED(n_rects, rects) \
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g_autofree MtkRectangle *G_PASTE(__n, __LINE__) = NULL; \
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if (n_rects < MTK_RECTANGLE_MAX_STACK_RECTS) \
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rects = g_newa (MtkRectangle, n_rects); \
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else \
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rects = G_PASTE(__n, __LINE__) = g_new (MtkRectangle, n_rects);
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/**
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* MtkRectangle:
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* @x: X coordinate of the top-left corner
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* @y: Y coordinate of the top-left corner
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* @width: Width of the rectangle
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* @height: Height of the rectangle
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*/
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struct _MtkRectangle
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{
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int x;
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int y;
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int width;
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int height;
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};
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typedef struct _MtkRectangle MtkRectangle;
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#define MTK_RECTANGLE_INIT(_x, _y, _width, _height) \
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(MtkRectangle) { \
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.x = (_x), \
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.y = (_y), \
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.width = (_width), \
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.height = (_height) \
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}
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MTK_EXPORT
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GType mtk_rectangle_get_type (void);
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MTK_EXPORT
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MtkRectangle * mtk_rectangle_copy (const MtkRectangle *rect);
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MTK_EXPORT
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void mtk_rectangle_free (MtkRectangle *rect);
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/* Function to make initializing a rect with a single line of code easy */
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MTK_EXPORT
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MtkRectangle * mtk_rectangle_new (int x,
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int y,
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int width,
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int height);
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/* Basic comparison functions */
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MTK_EXPORT
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int mtk_rectangle_area (const MtkRectangle *rect);
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MTK_EXPORT
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gboolean mtk_rectangle_equal (const MtkRectangle *src1,
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const MtkRectangle *src2);
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/* Find the bounding box of the union of two rectangles */
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MTK_EXPORT
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void mtk_rectangle_union (const MtkRectangle *rect1,
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const MtkRectangle *rect2,
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MtkRectangle *dest);
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MTK_EXPORT
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gboolean mtk_rectangle_intersect (const MtkRectangle *src1,
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const MtkRectangle *src2,
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MtkRectangle *dest);
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MTK_EXPORT
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gboolean mtk_rectangle_overlap (const MtkRectangle *rect1,
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const MtkRectangle *rect2);
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MTK_EXPORT
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gboolean mtk_rectangle_vert_overlap (const MtkRectangle *rect1,
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const MtkRectangle *rect2);
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MTK_EXPORT
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gboolean mtk_rectangle_horiz_overlap (const MtkRectangle *rect1,
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const MtkRectangle *rect2);
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MTK_EXPORT
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gboolean mtk_rectangle_could_fit_rect (const MtkRectangle *outer_rect,
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const MtkRectangle *inner_rect);
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MTK_EXPORT
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gboolean mtk_rectangle_contains_rect (const MtkRectangle *outer_rect,
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const MtkRectangle *inner_rect);
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MTK_EXPORT
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graphene_rect_t mtk_rectangle_to_graphene_rect (const MtkRectangle *rect);
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MTK_EXPORT
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void mtk_rectangle_from_graphene_rect (const graphene_rect_t *rect,
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MtkRoundingStrategy rounding_strategy,
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MtkRectangle *dest);
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MTK_EXPORT
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void mtk_rectangle_crop_and_scale (const MtkRectangle *rect,
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const graphene_rect_t *src_rect,
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int dst_width,
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int dst_height,
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MtkRectangle *dest);
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MTK_EXPORT
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void mtk_rectangle_scale_double (const MtkRectangle *rect,
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double scale,
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MtkRoundingStrategy rounding_strategy,
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MtkRectangle *dest);
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MTK_EXPORT
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gboolean mtk_rectangle_is_adjacent_to (const MtkRectangle *rect,
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const MtkRectangle *other);
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