11# This effect works currently only with mono fonts
22
33# MIT License
4- # Copyright (c) 2020 Mike Schulze
4+ # Copyright (c) 2023 Mike Schulze
55# https://github.com/MikeSchulze/gdUnit3/blob/master/LICENSE
66
77extends RichTextEffect
@@ -10,106 +10,102 @@ class_name RichTextEffectBackground
1010var bbcode = "bg"
1111
1212var _label : WeakRef
13- var _char_size :Vector2
14- var _tab_size : int
15- var _indent := Dictionary ()
16- var diff_sub_color := Color (0 , 0 , 0 , 0 )
13+ var _char_size := Vector2 ( 8 , 16 )
14+ var _margin := Vector2 . ZERO
15+ var _tab_size : int
16+ var _diff_sub_color := Color (0 , 0 , 0 , 0 )
1717var _cache := Dictionary ()
1818
19+ class CharacterInfo :
20+ var _position :Vector2
21+ var _size :Vector2
22+
23+ func _init (position :Vector2 , size :Vector2 ):
24+ _position = position
25+ _size = size
26+
27+
1928func set_source (label :RichTextLabel ) -> void :
2029 _label = weakref (label )
2130 init_properties ()
2231
32+
2333func init_properties () :
2434 _cache .clear ()
2535 # determine character size
26- var char_width := 8
27- var char_height := 16
2836 var custom_font = _label .get_ref ().get ("custom_fonts/mono_font" )
2937 if custom_font is Font :
30- char_height = custom_font .get_height ()
31- char_width = custom_font .get_char_size (23 ).x
32- _char_size = Vector2 (char_width , char_height )
38+ _char_size = Vector2 (custom_font .get_char_size (23 ).x , custom_font .get_height ())
3339 _tab_size = _label .get_ref ().tab_size
40+ _margin = Vector2 (4 , 4 )
3441
35- func push_indent (line :int , indent :int ) -> void :
36- _indent [line ] = indent
37-
38- func pop_indent (line :int , indent :int ) -> void :
39- _indent [line + 1 ] = - indent
40- _cache .clear ()
41-
42- func reset () -> void :
43- _cache .clear ()
44- _indent .clear ()
45-
46- func get_text_rect (control :Control ) -> Rect2 :
47- var style : StyleBox = control .get_stylebox ("normal" )
48- return Rect2 (style .get_offset (), control .get_size () - style .get_minimum_size ())
4942
5043func _process_custom_fx (char_fx : CharFXTransform ) -> bool :
5144 var label = _label .get_ref () as RichTextLabel
5245 var scroll = label .get_v_scroll ()
53- var position : =get_char_position (char_fx . absolute_index , label .get_text ())
54-
55- # padding
56- position += Vector2 ( 4 , 4 )
46+ var char_info : CharacterInfo = get_char_position (char_fx , label .get_text ())
47+ var position := char_info . _position
48+ # margin
49+ position += _margin
5750 # sync with scroll positon
5851 position .y -= scroll .value
59- var color = char_fx .env .get ("color" , diff_sub_color ) as Color
52+ var color = char_fx .env .get ("color" , _diff_sub_color ) as Color
6053 # lower the alpha for better backround
6154 color .a = .3
62- label .draw_rect (Rect2 (position , _char_size ), color )
63-
55+ label .draw_rect (Rect2 (position , char_info ._size ), color )
6456 # increase the color lightning of the character (for better visualisation on background)
6557 char_fx .color = char_fx .color .lightened (.8 )
6658 return true
6759
60+
6861func _build_char_mapping (text :String ) -> Dictionary :
6962 _cache .clear ()
7063 var line_height := get_line_height ()
7164 var line_index := 0
72- var char_offset := 0
73- var y_offset := 0
74- var last_ident := 0
65+ var char_index := 0
7566
76- # replace all tabs, otherwise it will results in invalid background coloring
77- for line in text .replace ("\t " , "" ).split ("\n " ):
67+ for line in text .split ("\n " ):
68+ var position = Vector2 (0 , line_height * line_index )
69+ for cp in line .length ():
70+ var char_size := char_size (line , cp )
71+ _cache [char_index ] = CharacterInfo .new (position , char_size )
72+ # prints( "line:%d:%d" % [line_index, char_index], "'%s' (%d)" % [text[char_index], text.ord_at(char_index)], position, "ident", last_ident)#, "tab:", text[text_index] == "\t", char_size)
73+ char_index += 1
74+ position .x += char_size .x
7875 line_index += 1
79- # build line x_offset by current line indent
80- last_ident = get_line_indent (line_index , last_ident )
81- var x_offset = last_ident * _tab_size
82-
83- for x in line .length ():
84- var char_index = char_offset + x
85- _cache [char_index ] = Vector2 ((x_offset + x )* _char_size .x , y_offset )
86- # calculate next line offsets
87- y_offset += line_height
88- char_offset += line .length ()
8976 return _cache
9077
91- func get_char_position (char_index :int , text :String ) -> Vector2 :
78+
79+ func char_size (line :String , index :int ) -> Vector2 :
80+ var character := line .ord_at (index )
81+ match character :
82+ 9 : return Vector2 (_tab_size * _char_size .x , _char_size .y )
83+ _ : return _char_size
84+ return _char_size
85+
86+
87+ func get_char_position (char_fx : CharFXTransform , text :String ) -> CharacterInfo :
9288 if _cache .empty ():
9389 _build_char_mapping (text )
94- return _cache .get (char_index , Vector2 .ONE )
90+ return _cache .get (char_fx . absolute_index , CharacterInfo . new ( Vector2 .ZERO , _char_size ) )
9591
96- func get_line_indent (line :int , last_indent := 0 ) -> int :
97- var line_indent = _indent .get (line , 0 )
98- if line_indent == 0 :
99- return last_indent
100- if line_indent < 0 :
101- return last_indent + line_indent
102- return line_indent
10392
10493func get_line_height () -> int :
10594 var label = _label .get_ref () as RichTextLabel
10695 var line_separation = label .get ("custom_constants/line_separation" )
10796 if not line_separation :
10897 line_separation = 1
109- return get_char_size ().y + line_separation
98+ return _char_size .y + line_separation
99+
100+
101+ func get_text_rect (control :Control ) -> Rect2 :
102+ var style : StyleBox = control .get_stylebox ("normal" )
103+ return Rect2 (style .get_offset (), control .get_size () - style .get_minimum_size ())
104+
105+
106+ func reset () -> void :
107+ _cache .clear ()
110108
111- func get_char_size () -> Vector2 :
112- return _char_size
113109
114110func _notification (what ):
115111 if what == EditorSettings .NOTIFICATION_EDITOR_SETTINGS_CHANGED :
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