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LibGUI: Indent selected text on tab press

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If selected text is less than a whole line, usual delete/replace takes
place. Otherwise, if the selected text is a whole line or spans
multiple lines, the selection will be indented.
This commit is contained in:
huttongrabiel 2022-06-18 12:02:51 -07:00 • committed by Sam Atkins
parent 80705a72bd
commit 2fbaa7996c
4 changed files with 80 additions and 2 deletions
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27
Userland/Libraries/LibGUI/TextDocument.cpp
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@ -932,6 +932,33 @@ String ReplaceAllTextCommand::action_text() const
return m_action_text;
}
IndentSelection::IndentSelection(TextDocument& document, size_t tab_width, TextRange const& range)
: TextDocumentUndoCommand(document)
, m_tab_width(tab_width)
, m_range(range)
{
}
void IndentSelection::redo()
{
auto const tab = String::repeated(' ', m_tab_width);
for (size_t i = m_range.start().line(); i <= m_range.end().line(); i++) {
m_document.insert_at({ i, 0 }, tab, m_client);
}
m_document.set_all_cursors(m_range.start());
}
void IndentSelection::undo()
{
for (size_t i = m_range.start().line(); i <= m_range.end().line(); i++) {
m_document.remove({ { i, 0 }, { i, m_tab_width } });
}
m_document.set_all_cursors(m_range.start());
}
TextPosition TextDocument::insert_at(TextPosition const& position, StringView text, Client const* client)
{
TextPosition cursor = position;