Add inline ColorPicker to Script text editor.

Adds an option to the script editor context menu that lets you open
a ColorPicker in order to easily edit `Color()` constructors.
To do this, right click on the word `Color` and select `Pick Color`.

A side effect of this change is that the script editor now has its own
context menu instead of re-using the one from TextEdit.
It's now possible to indent left/right and to toggle comments via this menu.
I also felt free to make it more context-sensitive than before:
Now "Cut" and "Copy" will only be shown if text has actually been selected.

I also added default shortcuts for indent left/right. (alt + left/right)

Closes #6232

2 files changed, 10 insertions, 3 deletions

diff --git a/scene/gui/text_edit.cpp b/scene/gui/text_edit.cpp
index 8a9ed98a5f..14508e07a8 100644
--- a/scene/gui/text_edit.cpp
+++ b/scene/gui/text_edit.cpp
@@ -1651,7 +1651,7 @@ void TextEdit::_input_event(const InputEvent& p_input_event) {
 					update();
 				}
 
-				if (mb.button_index==BUTTON_RIGHT) {
+				if (mb.button_index==BUTTON_RIGHT && context_menu_enabled) {
 
 					menu->set_pos(get_global_transform().xform(get_local_mouse_pos()));
 					menu->set_size(Vector2(1,1));
@@ -4569,6 +4569,9 @@ bool TextEdit::is_selecting_identifiers_on_hover_enabled() const {
 	return select_identifiers_enabled;
 }
 
+void TextEdit::set_context_menu_enabled(bool p_enable) {
+	context_menu_enabled = p_enable;
+}
 
 PopupMenu *TextEdit::get_menu() const {
 	return menu;
@@ -4789,6 +4792,7 @@ TextEdit::TextEdit()  {
 	window_has_focus=true;
 	select_identifiers_enabled=false;
 
+	context_menu_enabled=true;
 	menu = memnew( PopupMenu );
 	add_child(menu);
 	menu->add_item(TTR("Cut"),MENU_CUT,KEY_MASK_CMD|KEY_X);
diff --git a/scene/gui/text_edit.h b/scene/gui/text_edit.h
index cb49618f18..37477e3b7e 100644
--- a/scene/gui/text_edit.h
+++ b/scene/gui/text_edit.h
@@ -269,6 +269,8 @@ class TextEdit : public Control  {
 	int search_result_line;
 	int search_result_col;
 
+	bool context_menu_enabled;
+
 	int get_visible_rows() const;
 
 	int get_char_count();
@@ -319,8 +321,6 @@ class TextEdit : public Control  {
 	void _confirm_completion();
 	void _update_completion_candidates();
 
-	void _get_mouse_pos(const Point2i& p_mouse, int &r_row, int &r_col) const;
-
 protected:
 
 	virtual String get_tooltip(const Point2& p_pos) const;
@@ -360,6 +360,8 @@ public:
 
 	virtual CursorShape get_cursor_shape(const Point2& p_pos=Point2i()) const;
 
+	void _get_mouse_pos(const Point2i& p_mouse, int &r_row, int &r_col) const;
+
 	//void delete_char();
 	//void delete_line();
 
@@ -499,6 +501,7 @@ public:
 	void set_select_identifiers_on_hover(bool p_enable);
 	bool is_selecting_identifiers_on_hover_enabled() const;
 
+	void set_context_menu_enabled(bool p_enable);
 	PopupMenu *get_menu() const;
 
 	String get_text_for_completion();