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76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/*
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* boxes - Command line filter to draw/remove ASCII boxes around text
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* Copyright (c) 1999-2021 Thomas Jensen and the boxes contributors
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*
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* This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
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* License, version 3, as published by the Free Software Foundation.
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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* You should have received a copy of the GNU General Public License along with this program.
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* If not, see <https://www.gnu.org/licenses/>.
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*
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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*/
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/*
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* Shape handling and information functions
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*/
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#ifndef SHAPE_H
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#define SHAPE_H
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typedef enum {
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NW, NNW, N, NNE, NE, ENE, E, ESE, SE, SSE, S, SSW, SW, WSW, W, WNW
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} shape_t;
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extern char *shape_name[];
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#define NUM_SHAPES 16
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#define SHAPES_PER_SIDE 5
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#define NUM_SIDES 4
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#define NUM_CORNERS 4
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extern shape_t north_side[SHAPES_PER_SIDE]; /* groups of shapes, clockwise */
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extern shape_t east_side[SHAPES_PER_SIDE];
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extern shape_t south_side[SHAPES_PER_SIDE];
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extern shape_t west_side[SHAPES_PER_SIDE];
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extern shape_t corners[NUM_CORNERS];
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extern shape_t *sides[NUM_SIDES];
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typedef struct {
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char **chars;
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size_t height;
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size_t width;
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int elastic; /* elastic is used only in original definition */
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} sentry_t;
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#define SENTRY_INITIALIZER (sentry_t) {NULL, 0, 0, 0}
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int genshape (const size_t width, const size_t height, char ***chars);
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void freeshape (sentry_t *shape);
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shape_t findshape (const sentry_t *sarr, const int num);
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int on_side (const shape_t s, const int idx);
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int isempty (const sentry_t *shape);
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int isdeepempty (const sentry_t *shape);
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size_t highest (const sentry_t *sarr, const int n, ...);
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size_t widest (const sentry_t *sarr, const int n, ...);
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shape_t leftmost (const int aside, const int cnt);
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int empty_side (sentry_t *sarr, const int aside);
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#endif /*SHAPE_H*/
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/*EOF*/ /* vim: set cindent sw=4: */
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