From 9c1d4f9da2e4e2ab3f754d9d544c01b1da532ccc Mon Sep 17 00:00:00 2001
From: Hugo Locurcio <hugo.locurcio@hugo.pro>
Date: Sun, 5 Aug 2018 00:42:45 +0200
Subject: Use more subtle indentation guides in the script editor

---
 scene/gui/text_edit.cpp | 41 +++++++++++++++++++++++++++++++++++++++--
 1 file changed, 39 insertions(+), 2 deletions(-)

(limited to 'scene/gui/text_edit.cpp')

diff --git a/scene/gui/text_edit.cpp b/scene/gui/text_edit.cpp
index c9dcf058aa..5e3827b1a8 100644
--- a/scene/gui/text_edit.cpp
+++ b/scene/gui/text_edit.cpp
@@ -39,6 +39,7 @@
 
 #ifdef TOOLS_ENABLED
 #include "editor/editor_scale.h"
+#include "editor_settings.h"
 #endif
 
 #define TAB_PIXELS
@@ -923,6 +924,26 @@ void TextEdit::_notification(int p_what) {
 						}
 					}
 
+					int indent_level = get_indent_level(i);
+					if (draw_indent_guides && indent_level > 0) {
+#ifdef TOOLS_ENABLED
+						int indent_size = EditorSettings::get_singleton()->get("text_editor/indent/size");
+						float line_width = Math::round(EDSCALE);
+#else
+						int indent_size = 4;
+						float line_width = 1.0;
+#endif
+						int guides = 1 + (indent_level - 1) / indent_size;
+
+						for (int guide = 0; guide < guides; guide++) {
+							draw_line(
+									Point2(guide * indent_size * cache.font->get_char_size(' ').width + char_margin, ofs_y),
+									Point2(guide * indent_size * cache.font->get_char_size(' ').width + char_margin, ofs_y + get_row_height()),
+									cache.indent_guide_color,
+									line_width);
+						}
+					}
+
 					if (line_wrap_index == 0) {
 						// only do these if we are on the first wrapped part of a line
 
@@ -1179,9 +1200,14 @@ void TextEdit::_notification(int p_what) {
 							if (underlined) {
 								draw_rect(Rect2(char_ofs + char_margin + ofs_x, yofs + ascent + 2, w, 1), in_selection && override_selected_font_color ? cache.font_selected_color : color);
 							}
-						} else if (draw_tabs && str[j] == '\t') {
+						} else if (draw_tabs && (j > get_indent_level(i) || !draw_indent_guides) && str[j] == '\t') {
+							// If indent guides are enabled, only draw trailing or alignment tabs
+							// Otherwise, draw all tabs (including those used for indentation)
 							int yofs = (get_row_height() - cache.tab_icon->get_height()) / 2;
-							cache.tab_icon->draw(ci, Point2(char_ofs + char_margin + ofs_x, ofs_y + yofs), in_selection && override_selected_font_color ? cache.font_selected_color : color);
+							cache.tab_icon->draw(
+									ci,
+									Point2(char_ofs + char_margin + ofs_x, ofs_y + yofs),
+									in_selection && override_selected_font_color ? cache.font_selected_color : color);
 						}
 
 						char_ofs += char_w;
@@ -4324,6 +4350,7 @@ void TextEdit::_update_caches() {
 	cache.font = get_font("font");
 	cache.caret_color = get_color("caret_color");
 	cache.caret_background_color = get_color("caret_background_color");
+	cache.indent_guide_color = get_color("indent_guide_color");
 	cache.line_number_color = get_color("line_number_color");
 	cache.safe_line_number_color = get_color("safe_line_number_color");
 	cache.font_color = get_color("font_color");
@@ -5430,6 +5457,16 @@ int TextEdit::get_indent_size() {
 	return indent_size;
 }
 
+void TextEdit::set_draw_indent_guides(bool p_draw) {
+
+	draw_indent_guides = p_draw;
+}
+
+bool TextEdit::is_drawing_indent_guides() const {
+
+	return draw_indent_guides;
+}
+
 void TextEdit::set_draw_tabs(bool p_draw) {
 
 	draw_tabs = p_draw;
-- 
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