74 lines
2.6 KiB
Common Lisp
74 lines
2.6 KiB
Common Lisp
;;;; Copyright © 2023, Jaidyn Ann <jadedctrl@posteo.at>
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;;;;
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;;;; This program is free software: you can redistribute it and/or
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;;;; modify it under the terms of the GNU General Public License as
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;;;; published by the Free Software Foundation, either version 3 of
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;;;; the License, or (at your option) any later version.
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;;;;
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;;;; This program 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
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;;;; GNU General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU General Public License
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;;;; along with this program. If not, see <https://www.gnu.org/licenses/>.
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;;;; FLORA-SEARCH-AURORA.UI
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;;;; Generic menu-making, displaying, and management.
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;;;; Let's get to it, we're on a deadline!
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(defpackage :flora-search-aurora.ui
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(:use :cl :flora-search-aurora.display))
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(in-package :flora-search-aurora.ui)
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(defun render-line (matrix text x y)
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"Apply a one-line string to the matrix at the given coordinates."
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(if (and (stringp text)
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(> (length text) 0))
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(progn
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(setf (aref matrix y x)
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(char text 0))
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(render-line matrix (subseq text 1)
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(+ x 1) y))
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matrix))
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(defun render-string (matrix text x y &key (max-column 72) (max-row 20))
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"Render the given string to the matrix of characters, character-by-character.
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Will line-break or truncate as appropriate and necessary to not exceed the
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positional arguments nor the dimensions of the matrix."
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(let* ((dimensions (array-dimensions matrix))
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(max-column (at-most (cadr dimensions) max-column))
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(max-row (at-most (car dimensions) max-row))
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(substrings (split-string-by-length text (- max-column x)))
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(row 0))
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(loop while (and (< (+ y row) max-row)
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substrings)
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do
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(print (+ y row))
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(render-line matrix (pop substrings)
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x (+ y row))
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(incf row)))
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matrix)
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(defun split-string-by-length (string line-length &key (substrings '()))
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"Given a string, split it into a list of substrings all with lengths
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equal or lower to the given length."
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(if (> (length string) line-length)
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(split-string-by-length
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(subseq string line-length)
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line-length
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:substrings (append substrings
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`(,(subseq string 0 line-length))))
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(append substrings `(,string))))
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;;"---{============= -------------------"
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;; | Kill your mom | Give into despair
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;; ---{============= -------------------
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