highlight cursor line number

3 files changed, 6 insertions, 2 deletions

diff --git a/buffer.c b/buffer.c
index 9df8b65..d42d53a 100644
--- a/buffer.c
+++ b/buffer.c
@@ -1927,11 +1927,12 @@ void buffer_render(TextBuffer *buffer, Rect r) {
 
 		float y = render_start_y;
 		text_chars_begin(font);
-		gl_color_rgba(colors[COLOR_LINE_NUMBERS]);
-		for (u32 line = start_line; line < buffer->nlines; ++line) {
+		u32 cursor_line = buffer->cursor_pos.line;
+		for (u32 line = start_line; line < nlines; ++line) {
 			char str[32] = {0};
 			strbuf_printf(str, U32_FMT, line + 1); // convert line number to string
 			float x = x1 + line_number_width - (float)strlen(str) * char_width; // right justify
+			gl_color_rgba(colors[line == cursor_line ? COLOR_CURSOR_LINE_NUMBER : COLOR_LINE_NUMBERS]);
 			text_render_with_state(font, &text_state, str, x, y);
 			y += char_height;
 			if (y > y2) break;
diff --git a/colors.h b/colors.h
index 374d652..c37240a 100644
--- a/colors.h
+++ b/colors.h
@@ -32,6 +32,7 @@ ENUM_U16 {
 	COLOR_CONSTANT,
 
 	COLOR_LINE_NUMBERS,
+	COLOR_CURSOR_LINE_NUMBER,
 	COLOR_LINE_NUMBERS_SEPARATOR,
 
 	COLOR_COUNT
@@ -72,6 +73,7 @@ static ColorName const color_names[COLOR_COUNT] = {
 	{COLOR_NO, "no"},
 	{COLOR_CANCEL, "cancel"},
 	{COLOR_LINE_NUMBERS, "line-numbers"},
+	{COLOR_CURSOR_LINE_NUMBER, "cursor-line-number"},
 	{COLOR_LINE_NUMBERS_SEPARATOR, "line-numbers-separator"},
 };
 
diff --git a/ted.cfg b/ted.cfg
index 325c444..96f00e2 100644
--- a/ted.cfg
+++ b/ted.cfg
@@ -142,6 +142,7 @@ comment = #999
 constant = #8ff
 
 line-numbers = #779
+cursor-line-number = #ddf
 line-numbers-separator = #fff3
 
 [extensions]