77 lines
1.5 KiB
C
77 lines
1.5 KiB
C
/*
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* This file provides functions for easier accessing of _the_ table
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*
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*/
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#include <stdio.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <stdbool.h>
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#include <assert.h>
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#include "data.h"
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#include "table.h"
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/* This is a two-dimensional dynamic array of Container-pointers. I’ve always wanted
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* to be a three-star programmer :) */
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Container ***table = NULL;
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struct table_dimensions_t table_dims = {0, 0};
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/*
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* Initialize table
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*
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*/
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void init_table() {
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expand_table_cols();
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expand_table_rows();
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}
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static void new_container(Container **container) {
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Container *new;
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new = *container = calloc(sizeof(Container), 1);
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CIRCLEQ_INIT(&(new->clients));
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new->colspan = 1;
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new->rowspan = 1;
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}
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/*
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* Add one row to the table
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*
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*/
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void expand_table_rows() {
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int c;
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table_dims.y++;
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for (c = 0; c < table_dims.x; c++) {
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table[c] = realloc(table[c], sizeof(Container*) * table_dims.y);
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new_container(&(table[c][table_dims.y-1]));
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}
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}
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/*
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* Add one column to the table
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*
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*/
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void expand_table_cols() {
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int c;
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table_dims.x++;
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table = realloc(table, sizeof(Container**) * table_dims.x);
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table[table_dims.x-1] = calloc(sizeof(Container*) * table_dims.y, 1);
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for (c = 0; c < table_dims.y; c++)
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new_container(&(table[table_dims.x-1][c]));
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}
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/*
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* Performs simple bounds checking for the given column/row
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*
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*/
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bool cell_exists(int col, int row) {
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return (col >= 0 && col < table_dims.x) &&
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(row >= 0 && row < table_dims.y);
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}
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