From 2b319889cb942f97a8d0f619ec881f068511ba7b Mon Sep 17 00:00:00 2001
From: Michael Alexsander <michaelalexsander@protonmail.com>
Date: Tue, 8 Sep 2020 17:30:47 -0300
Subject: Add 'get_previous_tab()' to 'Tabs'

---
 scene/gui/tabs.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

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

diff --git a/scene/gui/tabs.cpp b/scene/gui/tabs.cpp
index 8f71aa7cab..d47f771d1d 100644
--- a/scene/gui/tabs.cpp
+++ b/scene/gui/tabs.cpp
@@ -388,6 +388,7 @@ void Tabs::set_current_tab(int p_current) {
 	}
 	ERR_FAIL_INDEX(p_current, get_tab_count());
 
+	previous = current;
 	current = p_current;
 
 	_change_notify("current_tab");
@@ -401,6 +402,10 @@ int Tabs::get_current_tab() const {
 	return current;
 }
 
+int Tabs::get_previous_tab() const {
+	return previous;
+}
+
 int Tabs::get_hovered_tab() const {
 	return hover;
 }
@@ -588,6 +593,7 @@ void Tabs::add_tab(const String &p_str, const Ref<Texture2D> &p_icon) {
 void Tabs::clear_tabs() {
 	tabs.clear();
 	current = 0;
+	previous = 0;
 	call_deferred("_update_hover");
 	update();
 }
@@ -605,6 +611,7 @@ void Tabs::remove_tab(int p_idx) {
 
 	if (current < 0) {
 		current = 0;
+		previous = 0;
 	}
 	if (current >= tabs.size()) {
 		current = tabs.size() - 1;
@@ -917,6 +924,7 @@ void Tabs::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_tab_count"), &Tabs::get_tab_count);
 	ClassDB::bind_method(D_METHOD("set_current_tab", "tab_idx"), &Tabs::set_current_tab);
 	ClassDB::bind_method(D_METHOD("get_current_tab"), &Tabs::get_current_tab);
+	ClassDB::bind_method(D_METHOD("get_previous_tab"), &Tabs::get_previous_tab);
 	ClassDB::bind_method(D_METHOD("set_tab_title", "tab_idx", "title"), &Tabs::set_tab_title);
 	ClassDB::bind_method(D_METHOD("get_tab_title", "tab_idx"), &Tabs::get_tab_title);
 	ClassDB::bind_method(D_METHOD("set_tab_icon", "tab_idx", "icon"), &Tabs::set_tab_icon);
@@ -970,6 +978,7 @@ void Tabs::_bind_methods() {
 
 Tabs::Tabs() {
 	current = 0;
+	previous = 0;
 	tab_align = ALIGN_CENTER;
 	rb_hover = -1;
 	rb_pressing = false;
-- 
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