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GTextEditor: Backspace over soft tabs

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This makes the backspace erase backwards until the next soft tab stop.
We currently always use 4 as the soft tab width, but I suppose we could
make it configurable at some point. :^)
This commit is contained in:
Andreas Kling 2019-10-27 10:42:48 +01:00
parent 98e556fee9
commit 8fa466e496
Notes: sideshowbarker 2024-07-19 11:31:28 +09:00
1 changed files with 14 additions and 2 deletions
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16
Libraries/LibGUI/GTextEditor.cpp
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@ -622,10 +622,22 @@ void GTextEditor::keydown_event(GKeyEvent& event)
return;
}
if (m_cursor.column() > 0) {
int erase_count = 1;
if (current_line().first_non_whitespace_column() >= m_cursor.column()) {
int new_column;
if (m_cursor.column() % m_soft_tab_width == 0)
new_column = m_cursor.column() - m_soft_tab_width;
else
new_column = (m_cursor.column() / m_soft_tab_width) * m_soft_tab_width;
erase_count = m_cursor.column() - new_column;
}
// Backspace within line
current_line().remove(m_cursor.column() - 1);
for (int i = 0; i < erase_count; ++i) {
current_line().remove(m_cursor.column() - 1 - i);
}
update_content_size();
set_cursor(m_cursor.line(), m_cursor.column() - 1);
set_cursor(m_cursor.line(), m_cursor.column() - erase_count);
did_change();
return;
}