1 files changed, 144 insertions, 0 deletions
diff --git a/src/interface-curses/curses-utils.c b/src/interface-curses/curses-utils.c
new file mode 100644
index 0000000..ace5795
--- /dev/null
+++ b/src/interface-curses/curses-utils.c
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2012-2021 Robin Haberkorn
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+
+#include <glib.h>
+
+#include <curses.h>
+
+#include "sciteco.h"
+#include "string-utils.h"
+#include "curses-utils.h"
+
+gsize
+teco_curses_format_str(WINDOW *win, const gchar *str, gsize len, gint max_width)
+{
+	int old_x, old_y;
+	gint chars_added = 0;
+
+	getyx(win, old_y, old_x);
+
+	if (max_width < 0)
+		max_width = getmaxx(win) - old_x;
+
+	while (len > 0) {
+		/*
+		 * NOTE: This mapping is similar to
+		 * View::set_representations()
+		 */
+		switch (*str) {
+		case '\e':
+			chars_added++;
+			if (chars_added > max_width)
+				goto truncate;
+			waddch(win, '$' | A_REVERSE);
+			break;
+		case '\r':
+			chars_added += 2;
+			if (chars_added > max_width)
+				goto truncate;
+			waddch(win, 'C' | A_REVERSE);
+			waddch(win, 'R' | A_REVERSE);
+			break;
+		case '\n':
+			chars_added += 2;
+			if (chars_added > max_width)
+				goto truncate;
+			waddch(win, 'L' | A_REVERSE);
+			waddch(win, 'F' | A_REVERSE);
+			break;
+		case '\t':
+			chars_added += 3;
+			if (chars_added > max_width)
+				goto truncate;
+			waddch(win, 'T' | A_REVERSE);
+			waddch(win, 'A' | A_REVERSE);
+			waddch(win, 'B' | A_REVERSE);
+			break;
+		default:
+			if (TECO_IS_CTL(*str)) {
+				chars_added += 2;
+				if (chars_added > max_width)
+					goto truncate;
+				waddch(win, '^' | A_REVERSE);
+				waddch(win, TECO_CTL_ECHO(*str) | A_REVERSE);
+			} else {
+				chars_added++;
+				if (chars_added > max_width)
+					goto truncate;
+				waddch(win, *str);
+			}
+		}
+
+		str++;
+		len--;
+	}
+
+	return getcurx(win) - old_x;
+
+truncate:
+	if (max_width >= 3) {
+		/*
+		 * Truncate string
+		 */
+		wattron(win, A_UNDERLINE | A_BOLD);
+		mvwaddstr(win, old_y, old_x + max_width - 3, "...");
+		wattroff(win, A_UNDERLINE | A_BOLD);
+	}
+
+	return getcurx(win) - old_x;
+}
+
+gsize
+teco_curses_format_filename(WINDOW *win, const gchar *filename,
+                            gint max_width)
+{
+	int old_x = getcurx(win);
+
+	g_autofree gchar *filename_printable = teco_string_echo(filename, strlen(filename));
+	size_t filename_len = strlen(filename_printable);
+
+	if (max_width < 0)
+		max_width = getmaxx(win) - old_x;
+
+	if (filename_len <= (size_t)max_width) {
+		waddstr(win, filename_printable);
+	} else {
+		const gchar *keep_post = filename_printable + filename_len -
+		                         max_width + 3;
+
+#ifdef G_OS_WIN32
+		const gchar *keep_pre = g_path_skip_root(filename_printable);
+		if (keep_pre) {
+			waddnstr(win, filename_printable,
+			         keep_pre - filename_printable);
+			keep_post += keep_pre - filename_printable;
+		}
+#endif
+		wattron(win, A_UNDERLINE | A_BOLD);
+		waddstr(win, "...");
+		wattroff(win, A_UNDERLINE | A_BOLD);
+		waddstr(win, keep_post);
+	}
+
+	return getcurx(win) - old_x;
+}