PrettyBox: Comment class (98b5d1f6) · Commits · Canek Peláez / Music Library Maintainer · GitLab

lib/mlm/pretty-box.vala

+125 −52

Original line number	Diff line number	Diff line
		@@ -22,38 +22,83 @@

		namespace MLM {

		/**
		* Class for pretty boxes in the terminal.
		*/
		public class PrettyBox {

		/**
		* Class for words.
		*/
		private class Word {
		public string word;
		public Color color;

		/**
		* The word.
		*/
		public string word { public get; private set; }

		/**
		* The color.
		*/
		public Color color { public get; private set; }

		public static Word space() {
		return new Word(" ", Color.NONE);
		}

		/**
		* Initializes a word.
		* @param word the word.
		* @param color the color.
		*/
		public Word(string word, Color color) {
		this.word = word;
		this.color = color;
		}

		/**
		* Returns the colorized word.
		* @return the colorized word.
		*/
		public string to_string() {
		return Util.color(word, color);
		}
		}

		/* Class for lines. */
		private class Line {

		/* The words on the line. */
		public Gee.ArrayList<Word> words;
		/* The line width. */
		public int width;

		/**
		* Initializes a line.
		*/
		public Line() {
		words = new Gee.ArrayList<Word>();
		width = 0;
		}

		/**
		* Adds a word to the line.
		* @param word the word to add.
		* @param add_space whether to add a space before the word.
		*/
		public void add_word(Word word, bool add_space=true) {
		if (width > 0 && add_space)
		word.word = " " + word.word;
		if (width > 0 && add_space) {
		width++;
		words.add(Word.space());
		}
		words.add(word);
		width += word.word.char_count();
		}

		/**
		* Returns the colorized line.
		* @return the colorized line.
		*/
		public string to_string() {
		string r = "";
		foreach (var word in words) {
		@@ -63,11 +108,20 @@ namespace MLM {
		}
		}

		/* The number of columns. */
		private int columns;
		/* The border color. */
		private Color border;
		/* The title. */
		private Gee.ArrayList<Line> title;
		/* The body. */
		private Gee.ArrayList<Line> body;

		/**
		* Initializes a pretty box.
		* @param columns the number of columns.
		* @param border the border color.
		*/
		public PrettyBox(int columns, Color border) {
		this.columns = columns;
		this.border = border;
		@@ -75,59 +129,22 @@ namespace MLM {
		body.add(new Line());
		}

		private string ellipsize(string word, int width) {
		unowned string s = word.next_char();
		string r = "";
		for (int i = 0; i < width / 2 - 1; i++) {
		r += s;
		s = s.next_char();
		}
		r += "...";
		for (int i = 0; i < word.char_count() - width - 3; i++)
		s = s.next_char();
		for (int i = width / 2 + 2; i < width; i++) {
		r += s;
		s = s.next_char();
		}
		return s;
		}

		private void process_strings(Gee.ArrayList<Line> lines,
		string strings, Color color) {
		var line = lines.last();
		var words = strings.split(" ");
		for (int i = 0; i < words.length; i++)
		if (words[i].char_count() > columns - 8)
		words[i] = ellipsize(words[i], columns - 8);
		for (int i = 0; i < words.length; i++) {
		if (line.width + words[i].char_count() > columns - 3) {
		line = new Line();
		line.add_word(new Word(" ", Color.NONE));
		lines.add(line);
		}
		line.add_word(new Word(words[i], color));
		}
		}

		/**
		* Sets the title.
		* @param title the title.
		* @param color the color of the title.
		*/
		public void set_title(string title, Color color) {
		this.title = new Gee.ArrayList<Line>();
		this.title.add(new Line());
		process_strings(this.title, title, color);
		}

		public void add_body_strings(string strings, Color color) {
		process_strings(body, strings, color);
		}

		public void add_body_separator(string separator) {
		var line = body.last();
		line.add_word(new Word(separator, Color.NONE), false);
		}

		public void add_body_newline() {
		body.add(new Line());
		}

		/**
		* Adds a pair of key/value for the body.
		* @param key the key.
		* @param value the value.
		*/
		public void add_body_key_value(string key, string value) {
		add_body_strings(key, Color.BLUE);
		add_body_separator(":");
		@@ -135,6 +152,10 @@ namespace MLM {
		add_body_newline();
		}

		/**
		* Returns the string with the pretty box.
		* @return the string with the pretty box.
		*/
		public string to_string() {
		var r = Util.color("┏", border);
		for (int i = 0; i < columns - 2; i++)
		@@ -169,5 +190,57 @@ namespace MLM {

		return r;
		}

		/* Ellipsizes a word to a certain width. */
		private string ellipsize(string word, int width) {
		unowned string s = word.next_char();
		string r = "";
		for (int i = 0; i < width / 2 - 1; i++) {
		r += s;
		s = s.next_char();
		}
		r += "...";
		for (int i = 0; i < word.char_count() - width - 3; i++)
		s = s.next_char();
		for (int i = width / 2 + 2; i < width; i++) {
		r += s;
		s = s.next_char();
		}
		return s;
		}

		/* Processes strings. */
		private void process_strings(Gee.ArrayList<Line> lines,
		string strings, Color color) {
		var line = lines.last();
		var words = strings.split(" ");
		for (int i = 0; i < words.length; i++)
		if (words[i].char_count() > columns - 8)
		words[i] = ellipsize(words[i], columns - 8);
		for (int i = 0; i < words.length; i++) {
		if (line.width + words[i].char_count() > columns - 3) {
		line = new Line();
		line.add_word(new Word(" ", Color.NONE));
		lines.add(line);
		}
		line.add_word(new Word(words[i], color));
		}
		}

		/* Adds the body strings. */
		private void add_body_strings(string strings, Color color) {
		process_strings(body, strings, color);
		}

		/* Adds a body separator. */
		private void add_body_separator(string separator) {
		var line = body.last();
		line.add_word(new Word(separator, Color.NONE), false);
		}

		/* Adds a new line for the body. */
		private void add_body_newline() {
		body.add(new Line());
		}
		}
		}
		No newline at end of file