1 files changed, 37 insertions, 0 deletions
diff --git a/kscurses/ui/progress_bar.jai b/kscurses/ui/progress_bar.jai
new file mode 100644
index 0000000..23d7dc9
--- /dev/null
+++ b/kscurses/ui/progress_bar.jai
@@ -0,0 +1,37 @@
+UI_Progress_Bar :: struct {
+	#as using base : UI_Elem = .{type = .PROGRESS_BAR};
+
+	value     :  float;
+	value_ptr : *float;
+
+	draw_proc := (percent : float, pix_coord : float) -> Vector3 { return ifx pix_coord < percent then Vector3.{0, 1, 0} else .{0, 0, 0}; }
+	show_percent := true;
+}
+
+set_value :: (progress_bar : *UI_Progress_Bar, value : float) {
+	progress_bar.value = value;
+	progress_bar.value_ptr = null;
+}
+set_value_ptr :: (progress_bar : *UI_Progress_Bar, value_ptr : *float) {
+	progress_bar.value_ptr = value_ptr;
+}
+
+c_draw_progress_bar :: (canvas : *Canvas, ui_elem : *UI_Elem, _zone : Ibox2, style : *UI_Style) -> bool {
+	using progress_bar := cast(*UI_Progress_Bar) ui_elem;
+	value_current := ifx value_ptr then <<value_ptr else value;
+	zone := _zone;
+	if zone.width < 6 return false;
+	if show_percent {
+		percent_str := tprint("%1%%", formatFloat(value_current * 100, width = 4, trailing_width = 1, zero_removal = .NO));
+		c_draw_line_ascii(canvas, percent_str, zone, .{zone.width - 5, zone.height / 2}, style.text.default);
+		zone.width -= 5;
+	}
+	for x : 0..zone.width-1 {
+		pix_coord := (x + .5) / zone.width;
+		char := find_best_char(draw_proc(value_current,  pix_coord), true);
+		for y : 0..zone.height-1 {
+			c_putchar(canvas, char, zone.corner + ivec2.{x, y});
+		}
+	}
+	return true;
+}