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-rw-r--r--scene/gui/text_edit.cpp125
-rw-r--r--scene/gui/text_edit.h3
2 files changed, 84 insertions, 44 deletions
diff --git a/scene/gui/text_edit.cpp b/scene/gui/text_edit.cpp
index 10bd9e2a8b..9655aab1b6 100644
--- a/scene/gui/text_edit.cpp
+++ b/scene/gui/text_edit.cpp
@@ -104,6 +104,13 @@ static CharType _get_right_pair_symbol(CharType c) {
return 0;
}
+static int _find_first_non_whitespace_column_of_line(const String &line) {
+ int left = 0;
+ while (left < line.length() && _is_whitespace(line[left]))
+ left++;
+ return left;
+}
+
void TextEdit::Text::set_font(const Ref<Font> &p_font) {
font = p_font;
@@ -1632,31 +1639,25 @@ void TextEdit::backspace_at_cursor() {
_consume_backspace_for_pair_symbol(prev_line, prev_column);
} else {
// handle space indentation
- if (cursor.column - indent_size >= 0 && indent_using_spaces) {
-
- // if there is enough spaces to count as a tab
+ if (cursor.column != 0 && indent_using_spaces) {
+ // check if there are no other chars before cursor, just indentation
bool unindent = true;
- for (int i = 1; i <= indent_size; i++) {
- if (text[cursor.line][cursor.column - i] != ' ') {
- unindent = false;
- break;
- }
- }
-
- // and it is before the first character
int i = 0;
while (i < cursor.column && i < text[cursor.line].length()) {
- if (text[cursor.line][i] != ' ' && text[cursor.line][i] != '\t') {
+ if (!_is_whitespace(text[cursor.line][i])) {
unindent = false;
break;
}
i++;
}
- // then we can remove it as a single character.
+ // then we can remove all spaces as a single character.
if (unindent) {
- _remove_text(cursor.line, cursor.column - indent_size, cursor.line, cursor.column);
- prev_column = cursor.column - indent_size;
+ // we want to remove spaces up to closest indent
+ // or whole indent if cursor is pointing at it
+ int spaces_to_delete = _calculate_spaces_till_next_left_indent(cursor.column);
+ prev_column = cursor.column - spaces_to_delete;
+ _remove_text(cursor.line, prev_column, cursor.line, cursor.column);
} else {
_remove_text(prev_line, prev_column, cursor.line, cursor.column);
}
@@ -1673,6 +1674,10 @@ void TextEdit::indent_right() {
int start_line;
int end_line;
+
+ // this value informs us by how much we changed selection position by indenting right
+ // default is 1 for tab indentation
+ int selection_offset = 1;
begin_complex_operation();
if (is_selection_active()) {
@@ -1691,18 +1696,24 @@ void TextEdit::indent_right() {
for (int i = start_line; i <= end_line; i++) {
String line_text = get_line(i);
if (indent_using_spaces) {
- line_text = space_indent + line_text;
+ // we don't really care where selection is - we just need to know indentation level at the beginning of the line
+ int left = _find_first_non_whitespace_column_of_line(line_text);
+ int spaces_to_add = _calculate_spaces_till_next_right_indent(left);
+ // since we will add this much spaces we want move whole selection and cursor by this much
+ selection_offset = spaces_to_add;
+ for (int j = 0; j < spaces_to_add; j++)
+ line_text = ' ' + line_text;
} else {
line_text = '\t' + line_text;
}
set_line(i, line_text);
}
- // fix selection and cursor being off by one on the last line
+ // fix selection and cursor being off after shifting selection right
if (is_selection_active()) {
- select(selection.from_line, selection.from_column + 1, selection.to_line, selection.to_column + 1);
+ select(selection.from_line, selection.from_column + selection_offset, selection.to_line, selection.to_column + selection_offset);
}
- cursor_set_column(cursor.column + 1, false);
+ cursor_set_column(cursor.column + selection_offset, false);
end_complex_operation();
update();
}
@@ -1711,6 +1722,15 @@ void TextEdit::indent_left() {
int start_line;
int end_line;
+
+ // moving cursor and selection after unindenting can get tricky
+ // because changing content of line can move cursor and selection on it's own (if new line ends before previous position of either)
+ // therefore we just remember initial values
+ // and at the end of the operation offset them by number of removed characters
+ int removed_characters = 0;
+ int initial_selection_end_column = selection.to_column;
+ int initial_cursor_column = cursor.column;
+
begin_complex_operation();
if (is_selection_active()) {
@@ -1733,21 +1753,43 @@ void TextEdit::indent_left() {
if (line_text.begins_with("\t")) {
line_text = line_text.substr(1, line_text.length());
set_line(i, line_text);
- } else if (line_text.begins_with(space_indent)) {
- line_text = line_text.substr(indent_size, line_text.length());
+ removed_characters = 1;
+ } else if (line_text.begins_with(" ")) {
+ // when unindenting we aim to remove spaces before line that has selection no matter what is selected
+ // so we start of by finding first non whitespace character of line
+ int left = _find_first_non_whitespace_column_of_line(line_text);
+
+ // here we remove only enough spaces to align text to nearest full multiple of indentation_size
+ // in case where selection begins at the start of indentation_size multiple we remove whole indentation level
+ int spaces_to_remove = _calculate_spaces_till_next_left_indent(left);
+
+ line_text = line_text.substr(spaces_to_remove, line_text.length());
set_line(i, line_text);
+ removed_characters = spaces_to_remove;
}
}
// fix selection and cursor being off by one on the last line
if (is_selection_active() && last_line_text != get_line(end_line)) {
- select(selection.from_line, selection.from_column - 1, selection.to_line, selection.to_column - 1);
+ select(selection.from_line, selection.from_column - removed_characters,
+ selection.to_line, initial_selection_end_column - removed_characters);
}
- cursor_set_column(cursor.column - 1, false);
+ cursor_set_column(initial_cursor_column - removed_characters, false);
end_complex_operation();
update();
}
+int TextEdit::_calculate_spaces_till_next_left_indent(int column) {
+ int spaces_till_indent = column % indent_size;
+ if (spaces_till_indent == 0)
+ spaces_till_indent = indent_size;
+ return spaces_till_indent;
+}
+
+int TextEdit::_calculate_spaces_till_next_right_indent(int column) {
+ return indent_size - column % indent_size;
+}
+
void TextEdit::_get_mouse_pos(const Point2i &p_mouse, int &r_row, int &r_col) const {
float rows = p_mouse.y;
@@ -2504,15 +2546,11 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
} else {
if (k->get_shift()) {
- //simple unindent
+ // simple unindent
int cc = cursor.column;
-
- const int len = text[cursor.line].length();
const String &line = text[cursor.line];
- int left = 0; // number of whitespace chars at beginning of line
- while (left < len && (line[left] == '\t' || line[left] == ' '))
- left++;
+ int left = _find_first_non_whitespace_column_of_line(line);
cc = MIN(cc, left);
while (cc < indent_size && cc < left && line[cc] == ' ')
@@ -2520,24 +2558,18 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
if (cc > 0 && cc <= text[cursor.line].length()) {
if (text[cursor.line][cc - 1] == '\t') {
+ // tabs unindentation
_remove_text(cursor.line, cc - 1, cursor.line, cc);
if (cursor.column >= left)
cursor_set_column(MAX(0, cursor.column - 1));
update();
} else {
- int n = 0;
-
- for (int i = 1; i <= MIN(cc, indent_size); i++) {
- if (line[cc - i] != ' ') {
- break;
- }
- n++;
- }
-
- if (n > 0) {
- _remove_text(cursor.line, cc - n, cursor.line, cc);
- if (cursor.column > left - n) // inside text?
- cursor_set_column(MAX(0, cursor.column - n));
+ // spaces unindentation
+ int spaces_to_remove = _calculate_spaces_till_next_left_indent(cc);
+ if (spaces_to_remove > 0) {
+ _remove_text(cursor.line, cc - spaces_to_remove, cursor.line, cc);
+ if (cursor.column > left - spaces_to_remove) // inside text?
+ cursor_set_column(MAX(0, cursor.column - spaces_to_remove));
update();
}
}
@@ -2546,9 +2578,14 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
update();
}
} else {
- //simple indent
+ // simple indent
if (indent_using_spaces) {
- _insert_text_at_cursor(space_indent);
+ // insert only as much spaces as needed till next indentation level
+ int spaces_to_add = _calculate_spaces_till_next_right_indent(cursor.column);
+ String indent_to_insert = String();
+ for (int i = 0; i < spaces_to_add; i++)
+ indent_to_insert = ' ' + indent_to_insert;
+ _insert_text_at_cursor(indent_to_insert);
} else {
_insert_text_at_cursor("\t");
}
diff --git a/scene/gui/text_edit.h b/scene/gui/text_edit.h
index 4badd85e07..c27384e195 100644
--- a/scene/gui/text_edit.h
+++ b/scene/gui/text_edit.h
@@ -430,6 +430,9 @@ private:
void _confirm_completion();
void _update_completion_candidates();
+ int _calculate_spaces_till_next_left_indent(int column);
+ int _calculate_spaces_till_next_right_indent(int column);
+
protected:
virtual String get_tooltip(const Point2 &p_pos) const;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 07:28:32 +0000