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[TextEdit] Add support for optional wrapped line indentation. #88546

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Mar 5, 2024
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[TextEdit] Add support for optional wrapped line indentation. #88546

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3 changes: 3 additions & 0 deletions doc/classes/EditorSettings.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -992,6 +992,9 @@
<member name="text_editor/behavior/indent/auto_indent" type="bool" setter="" getter="">
If [code]true[/code], automatically indents code when pressing the [kbd]Enter[/kbd] key based on blocks above the new line.
</member>
<member name="text_editor/behavior/indent/indent_wrapped_lines" type="bool" setter="" getter="">
If [code]true[/code], all wrapped lines are indented to the same amount as the unwrapped line.
</member>
<member name="text_editor/behavior/indent/size" type="int" setter="" getter="">
When using tab indentation, determines the length of each tab. When using space indentation, determines how many spaces are inserted when pressing [kbd]Tab[/kbd] and when automatic indentation is performed.
</member>
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3 changes: 3 additions & 0 deletions doc/classes/TextEdit.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -1154,6 +1154,9 @@
<member name="highlight_current_line" type="bool" setter="set_highlight_current_line" getter="is_highlight_current_line_enabled" default="false">
If [code]true[/code], the line containing the cursor is highlighted.
</member>
<member name="indent_wrapped_lines" type="bool" setter="set_indent_wrapped_lines" getter="is_indent_wrapped_lines" default="false">
If [code]true[/code], all wrapped lines are indented to the same amount as the unwrapped line.
</member>
<member name="language" type="String" setter="set_language" getter="get_language" default="&quot;&quot;">
Language code used for line-breaking and text shaping algorithms, if left empty current locale is used instead.
</member>
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3 changes: 3 additions & 0 deletions doc/classes/TextServer.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -1837,6 +1837,9 @@
<constant name="BREAK_TRIM_EDGE_SPACES" value="16" enum="LineBreakFlag" is_bitfield="true">
Remove edge spaces from the broken line segments.
</constant>
<constant name="BREAK_TRIM_INDENT" value="32" enum="LineBreakFlag" is_bitfield="true">
Subtract first line indentation width from all lines after the first one.
</constant>
<constant name="VC_CHARS_BEFORE_SHAPING" value="0" enum="VisibleCharactersBehavior">
Trims text before the shaping. e.g, increasing [member Label.visible_characters] or [member RichTextLabel.visible_characters] value is visually identical to typing the text.
</constant>
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1 change: 1 addition & 0 deletions editor/code_editor.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1039,6 +1039,7 @@ void CodeTextEditor::update_editor_settings() {
set_indent_using_spaces(EDITOR_GET("text_editor/behavior/indent/type"));
text_editor->set_indent_size(EDITOR_GET("text_editor/behavior/indent/size"));
text_editor->set_auto_indent_enabled(EDITOR_GET("text_editor/behavior/indent/auto_indent"));
text_editor->set_indent_wrapped_lines(EDITOR_GET("text_editor/behavior/indent/indent_wrapped_lines"));

// Completion
text_editor->set_auto_brace_completion_enabled(EDITOR_GET("text_editor/completion/auto_brace_complete"));
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1 change: 1 addition & 0 deletions editor/editor_settings.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -631,6 +631,7 @@ void EditorSettings::_load_defaults(Ref<ConfigFile> p_extra_config) {
EDITOR_SETTING(Variant::INT, PROPERTY_HINT_ENUM, "text_editor/behavior/indent/type", 0, "Tabs,Spaces")
EDITOR_SETTING(Variant::INT, PROPERTY_HINT_RANGE, "text_editor/behavior/indent/size", 4, "1,64,1") // size of 0 crashes.
_initial_set("text_editor/behavior/indent/auto_indent", true);
_initial_set("text_editor/behavior/indent/indent_wrapped_lines", true);

// Behavior: Files
_initial_set("text_editor/behavior/files/trim_trailing_whitespace_on_save", false);
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69 changes: 61 additions & 8 deletions scene/gui/text_edit.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,18 @@ int TextEdit::Text::get_tab_size() const {
return tab_size;
}

void TextEdit::Text::set_indent_wrapped_lines(bool p_enabled) {
if (indent_wrapped_lines == p_enabled) {
return;
}
indent_wrapped_lines = p_enabled;
tab_size_dirty = true;
}

bool TextEdit::Text::is_indent_wrapped_lines() const {
return indent_wrapped_lines;
}

void TextEdit::Text::set_direction_and_language(TextServer::Direction p_direction, const String &p_language) {
if (direction == p_direction && language == p_language) {
return;
Expand Down Expand Up @@ -185,9 +197,14 @@ void TextEdit::Text::invalidate_cache(int p_line, int p_column, bool p_text_chan
text.write[p_line].data_buf->clear();
}

BitField<TextServer::LineBreakFlag> flags = brk_flags;
if (indent_wrapped_lines) {
flags.set_flag(TextServer::BREAK_TRIM_INDENT);
}

text.write[p_line].data_buf->set_width(width);
text.write[p_line].data_buf->set_direction((TextServer::Direction)direction);
text.write[p_line].data_buf->set_break_flags(brk_flags);
text.write[p_line].data_buf->set_break_flags(flags);
text.write[p_line].data_buf->set_preserve_control(draw_control_chars);
if (p_ime_text.length() > 0) {
if (p_text_changed) {
Expand Down Expand Up @@ -251,8 +268,12 @@ void TextEdit::Text::invalidate_cache(int p_line, int p_column, bool p_text_chan

void TextEdit::Text::invalidate_all_lines() {
for (int i = 0; i < text.size(); i++) {
BitField<TextServer::LineBreakFlag> flags = brk_flags;
if (indent_wrapped_lines) {
flags.set_flag(TextServer::BREAK_TRIM_INDENT);
}
text.write[i].data_buf->set_width(width);
text.write[i].data_buf->set_break_flags(brk_flags);
text.write[i].data_buf->set_break_flags(flags);
if (tab_size_dirty) {
if (tab_size > 0) {
Vector<float> tabs;
Expand Down Expand Up @@ -1075,9 +1096,12 @@ void TextEdit::_notification(int p_what) {
// Draw line.
RID rid = ldata->get_line_rid(line_wrap_index);
float text_height = TS->shaped_text_get_size(rid).y;
float wrap_indent = (text.is_indent_wrapped_lines() && line_wrap_index > 0) ? get_indent_level(line) * theme_cache.font->get_char_size(' ', theme_cache.font_size).width : 0.0;

if (rtl) {
char_margin = size.width - char_margin - TS->shaped_text_get_size(rid).x;
char_margin = size.width - char_margin - (TS->shaped_text_get_size(rid).x + wrap_indent);
} else {
char_margin += wrap_indent;
}

// Draw selections.
Expand Down Expand Up @@ -2935,7 +2959,11 @@ void TextEdit::_update_placeholder() {
// Placeholder is generally smaller then text documents, and updates less so this should be fast enough for now.
placeholder_data_buf->clear();
placeholder_data_buf->set_width(text.get_width());
placeholder_data_buf->set_break_flags(text.get_brk_flags());
BitField<TextServer::LineBreakFlag> flags = text.get_brk_flags();
if (text.is_indent_wrapped_lines()) {
flags.set_flag(TextServer::BREAK_TRIM_INDENT);
}
placeholder_data_buf->set_break_flags(flags);
if (text_direction == Control::TEXT_DIRECTION_INHERITED) {
placeholder_data_buf->set_direction(is_layout_rtl() ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR);
} else {
Expand Down Expand Up @@ -3331,6 +3359,20 @@ int TextEdit::get_tab_size() const {
return text.get_tab_size();
}

void TextEdit::set_indent_wrapped_lines(bool p_enabled) {
if (text.is_indent_wrapped_lines() == p_enabled) {
return;
}
text.set_indent_wrapped_lines(p_enabled);
text.invalidate_all_lines();
_update_placeholder();
queue_redraw();
}

bool TextEdit::is_indent_wrapped_lines() const {
return text.is_indent_wrapped_lines();
}

// User controls
void TextEdit::set_overtype_mode_enabled(const bool p_enabled) {
if (overtype_mode == p_enabled) {
Expand Down Expand Up @@ -4336,8 +4378,11 @@ Point2i TextEdit::get_line_column_at_pos(const Point2i &p_pos, bool p_allow_out_
}

RID text_rid = text.get_line_data(row)->get_line_rid(wrap_index);
float wrap_indent = (text.is_indent_wrapped_lines() && wrap_index > 0) ? get_indent_level(row) * theme_cache.font->get_char_size(' ', theme_cache.font_size).width : 0.0;
if (is_layout_rtl()) {
colx = TS->shaped_text_get_size(text_rid).x - colx;
colx = TS->shaped_text_get_size(text_rid).x - colx + wrap_indent;
} else {
colx -= wrap_indent;
}
col = TS->shaped_text_hit_test_position(text_rid, colx);
if (!caret_mid_grapheme_enabled) {
Expand Down Expand Up @@ -6073,6 +6118,9 @@ void TextEdit::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_tab_size", "size"), &TextEdit::set_tab_size);
ClassDB::bind_method(D_METHOD("get_tab_size"), &TextEdit::get_tab_size);

ClassDB::bind_method(D_METHOD("set_indent_wrapped_lines", "enabled"), &TextEdit::set_indent_wrapped_lines);
ClassDB::bind_method(D_METHOD("is_indent_wrapped_lines"), &TextEdit::is_indent_wrapped_lines);

// User controls
ClassDB::bind_method(D_METHOD("set_overtype_mode_enabled", "enabled"), &TextEdit::set_overtype_mode_enabled);
ClassDB::bind_method(D_METHOD("is_overtype_mode_enabled"), &TextEdit::is_overtype_mode_enabled);
Expand Down Expand Up @@ -6451,6 +6499,7 @@ void TextEdit::_bind_methods() {
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "middle_mouse_paste_enabled"), "set_middle_mouse_paste_enabled", "is_middle_mouse_paste_enabled");
ADD_PROPERTY(PropertyInfo(Variant::INT, "wrap_mode", PROPERTY_HINT_ENUM, "None,Boundary"), "set_line_wrapping_mode", "get_line_wrapping_mode");
ADD_PROPERTY(PropertyInfo(Variant::INT, "autowrap_mode", PROPERTY_HINT_ENUM, "Arbitrary:1,Word:2,Word (Smart):3"), "set_autowrap_mode", "get_autowrap_mode");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "indent_wrapped_lines"), "set_indent_wrapped_lines", "is_indent_wrapped_lines");

ADD_GROUP("Scroll", "scroll_");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scroll_smooth"), "set_smooth_scroll_enabled", "is_smooth_scroll_enabled");
Expand Down Expand Up @@ -7075,8 +7124,11 @@ int TextEdit::_get_char_pos_for_line(int p_px, int p_line, int p_wrap_index) con
p_wrap_index = MIN(p_wrap_index, text.get_line_data(p_line)->get_line_count() - 1);

RID text_rid = text.get_line_data(p_line)->get_line_rid(p_wrap_index);
float wrap_indent = (text.is_indent_wrapped_lines() && p_wrap_index > 0) ? get_indent_level(p_line) * theme_cache.font->get_char_size(' ', theme_cache.font_size).width : 0.0;
if (is_layout_rtl()) {
p_px = TS->shaped_text_get_size(text_rid).x - p_px;
p_px = TS->shaped_text_get_size(text_rid).x - p_px + wrap_indent;
} else {
p_px -= wrap_indent;
}
int ofs = TS->shaped_text_hit_test_position(text_rid, p_px);
if (!caret_mid_grapheme_enabled) {
Expand Down Expand Up @@ -7125,11 +7177,12 @@ int TextEdit::_get_column_x_offset_for_line(int p_char, int p_line, int p_column
}

RID text_rid = text.get_line_data(p_line)->get_line_rid(row);
float wrap_indent = (text.is_indent_wrapped_lines() && row > 0) ? get_indent_level(p_line) * theme_cache.font->get_char_size(' ', theme_cache.font_size).width : 0.0;
CaretInfo ts_caret = TS->shaped_text_get_carets(text_rid, p_column);
if ((ts_caret.l_caret != Rect2() && (ts_caret.l_dir == TextServer::DIRECTION_AUTO || ts_caret.l_dir == (TextServer::Direction)input_direction)) || (ts_caret.t_caret == Rect2())) {
return ts_caret.l_caret.position.x;
return ts_caret.l_caret.position.x + (is_layout_rtl() ? -wrap_indent : wrap_indent);
} else {
return ts_caret.t_caret.position.x;
return ts_caret.t_caret.position.x + (is_layout_rtl() ? -wrap_indent : wrap_indent);
}
}

Expand Down
7 changes: 7 additions & 0 deletions scene/gui/text_edit.h
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Original file line number Diff line number Diff line change
Expand Up @@ -181,13 +181,17 @@ class TextEdit : public Control {

int tab_size = 4;
int gutter_count = 0;
bool indent_wrapped_lines = false;

void _calculate_line_height();
void _calculate_max_line_width();

public:
void set_tab_size(int p_tab_size);
int get_tab_size() const;
void set_indent_wrapped_lines(bool p_enabled);
bool is_indent_wrapped_lines() const;

void set_font(const Ref<Font> &p_font);
void set_font_size(int p_font_size);
void set_direction_and_language(TextServer::Direction p_direction, const String &p_language);
Expand Down Expand Up @@ -720,6 +724,9 @@ class TextEdit : public Control {
void set_tab_size(const int p_size);
int get_tab_size() const;

void set_indent_wrapped_lines(bool p_enabled);
bool is_indent_wrapped_lines() const;

// User controls
void set_overtype_mode_enabled(const bool p_enabled);
bool is_overtype_mode_enabled() const;
Expand Down
44 changes: 42 additions & 2 deletions servers/text_server.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -535,6 +535,7 @@ void TextServer::_bind_methods() {
BIND_BITFIELD_FLAG(BREAK_GRAPHEME_BOUND);
BIND_BITFIELD_FLAG(BREAK_ADAPTIVE);
BIND_BITFIELD_FLAG(BREAK_TRIM_EDGE_SPACES);
BIND_BITFIELD_FLAG(BREAK_TRIM_INDENT);

/* VisibleCharactersBehavior */
BIND_ENUM_CONSTANT(VC_CHARS_BEFORE_SHAPING);
Expand Down Expand Up @@ -750,13 +751,28 @@ PackedInt32Array TextServer::shaped_text_get_line_breaks_adv(const RID &p_shaped
int l_size = shaped_text_get_glyph_count(p_shaped);
const Glyph *l_gl = const_cast<TextServer *>(this)->shaped_text_sort_logical(p_shaped);

double indent = 0.0;
if (p_break_flags.has_flag(BREAK_TRIM_INDENT)) {
for (int i = 0; i < l_size; i++) {
if ((l_gl[i].flags & GRAPHEME_IS_TAB) == GRAPHEME_IS_TAB || (l_gl[i].flags & GRAPHEME_IS_SPACE) == GRAPHEME_IS_SPACE) {
indent += l_gl[i].advance * l_gl[i].repeat;
} else {
break;
}
}
}

for (int i = 0; i < l_size; i++) {
double l_width = p_width[chunk];
if (l_width > indent) {
l_width -= indent;
}
if (l_gl[i].start < p_start) {
prev_safe_break = i + 1;
continue;
}
if (l_gl[i].count > 0) {
if ((p_width[chunk] > 0) && (width + l_gl[i].advance > p_width[chunk]) && (last_safe_break >= 0)) {
if ((l_width > 0) && (width + l_gl[i].advance > l_width) && (last_safe_break >= 0)) {
if (p_break_flags.has_flag(BREAK_TRIM_EDGE_SPACES)) {
int start_pos = prev_safe_break;
int end_pos = last_safe_break;
Expand Down Expand Up @@ -891,13 +907,25 @@ PackedInt32Array TextServer::shaped_text_get_line_breaks(const RID &p_shaped, do
int l_size = shaped_text_get_glyph_count(p_shaped);
const Glyph *l_gl = const_cast<TextServer *>(this)->shaped_text_sort_logical(p_shaped);

double indent = 0.0;
if (p_break_flags.has_flag(BREAK_TRIM_INDENT)) {
for (int i = 0; i < l_size; i++) {
if ((l_gl[i].flags & GRAPHEME_IS_TAB) == GRAPHEME_IS_TAB || (l_gl[i].flags & GRAPHEME_IS_SPACE) == GRAPHEME_IS_SPACE) {
indent += l_gl[i].advance * l_gl[i].repeat;
} else {
break;
}
}
}

double l_width = p_width;
for (int i = 0; i < l_size; i++) {
if (l_gl[i].start < p_start) {
prev_safe_break = i + 1;
continue;
}
if (l_gl[i].count > 0) {
if ((p_width > 0) && (width + l_gl[i].advance * l_gl[i].repeat > p_width) && (last_safe_break >= 0)) {
if ((l_width > 0) && (width + l_gl[i].advance * l_gl[i].repeat > l_width) && (last_safe_break >= 0)) {
if (p_break_flags.has_flag(BREAK_TRIM_EDGE_SPACES)) {
int start_pos = prev_safe_break;
int end_pos = last_safe_break;
Expand All @@ -910,13 +938,19 @@ PackedInt32Array TextServer::shaped_text_get_line_breaks(const RID &p_shaped, do
if (last_end <= l_gl[start_pos].start) {
lines.push_back(l_gl[start_pos].start);
lines.push_back(l_gl[end_pos].end);
if (p_width > indent) {
l_width = p_width - indent;
}
last_end = l_gl[end_pos].end;
}
trim_next = true;
} else {
if (last_end <= line_start) {
lines.push_back(line_start);
lines.push_back(l_gl[last_safe_break].end);
if (p_width > indent) {
l_width = p_width - indent;
}
last_end = l_gl[last_safe_break].end;
}
}
Expand All @@ -943,12 +977,18 @@ PackedInt32Array TextServer::shaped_text_get_line_breaks(const RID &p_shaped, do
if (last_end <= l_gl[start_pos].start) {
lines.push_back(l_gl[start_pos].start);
lines.push_back(l_gl[end_pos].end);
if (p_width > indent) {
l_width = p_width - indent;
}
last_end = l_gl[end_pos].end;
}
} else {
if (last_end <= line_start) {
lines.push_back(line_start);
lines.push_back(l_gl[i].end);
if (p_width > indent) {
l_width = p_width - indent;
}
last_end = l_gl[i].end;
}
}
Expand Down
1 change: 1 addition & 0 deletions servers/text_server.h
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Original file line number Diff line number Diff line change
Expand Up @@ -108,6 +108,7 @@ class TextServer : public RefCounted {
BREAK_GRAPHEME_BOUND = 1 << 2,
BREAK_ADAPTIVE = 1 << 3,
BREAK_TRIM_EDGE_SPACES = 1 << 4,
BREAK_TRIM_INDENT = 1 << 5,
};

enum OverrunBehavior {
Expand Down
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