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Fix unindent (shift-tab) on column 0 and more

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This commit is contained in:
Bernhard Liebl 2017-12-23 09:28:02 +01:00
parent 32d8b99bc3
commit 2897523d12
1 changed files with 31 additions and 13 deletions
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44
scene/gui/text_edit.cpp
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@ -2420,26 +2420,44 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
//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++;
cc = MIN(cc, left);
while (cc < indent_size && cc < left && line[cc] == ' ')
cc++;
if (cc > 0 && cc <= text[cursor.line].length()) {
if (text[cursor.line][cursor.column - 1] == '\t') {
backspace_at_cursor();
if (text[cursor.line][cc - 1] == '\t') {
_remove_text(cursor.line, cc - 1, cursor.line, cc);
if (cursor.column >= left)
cursor_set_column(MAX(0, cursor.column - 1));
update();
} else {
if (cursor.column - indent_size >= 0) {
int n = 0;
bool unindent = true;
for (int i = 1; i <= indent_size; i++) {
if (text[cursor.line][cursor.column - i] != ' ') {
unindent = false;
break;
}
for (int i = 1; i <= MIN(cc, indent_size); i++) {
if (line[cc - i] != ' ') {
break;
}
n++;
}
if (unindent) {
_remove_text(cursor.line, cursor.column - indent_size, cursor.line, cursor.column);
cursor_set_column(cursor.column - indent_size);
}
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));
update();
}
}
} else if (cc == 0 && line.length() > 0 && line[0] == '\t') {
_remove_text(cursor.line, 0, cursor.line, 1);
update();
}
} else {
//simple indent