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Editor: multi cursor support

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Adding a way to create multiple cursors that can insert/remove text at
arbitrary positions in the document. Adding cursors is done by pressing
alt + up/down or by clicking into the editor while holding the alt key.

Fixes: QTCREATORBUG-16013
Change-Id: I495d27d95a3d277220946616ef30efc241da0120
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Artem Sokolovskii <artem.sokolovskii@qt.io>
Reviewed-by: David Schulz <david.schulz@qt.io>
This commit is contained in:
David Schulz
2021-06-28 09:13:57 +02:00
parent eefb385918
commit c00330f905
30 changed files with 2204 additions and 2459 deletions
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34
src/plugins/fakevim/fakevimplugin.cpp
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@@ -1690,22 +1690,44 @@ void FakeVimPluginPrivate::editorOpened(IEditor *editor)
handler->requestDisableBlockSelection.connect([tew] {
if (tew)
tew->setBlockSelection(false);
tew->setTextCursor(tew->textCursor());
});
handler->requestSetBlockSelection.connect([tew](const QTextCursor &cursor) {
if (tew)
tew->setBlockSelection(cursor);
if (tew) {
const TabSettings &tabs = tew->textDocument()->tabSettings();
MultiTextCursor mtc;
const bool forwardSelection = cursor.anchor() < cursor.position();
QTextBlock block = cursor.document()->findBlock(cursor.anchor());
const QTextBlock end = forwardSelection ? cursor.block().next() : cursor.block().previous();
const int anchor = tabs.columnAt(block.text(), cursor.anchor() - block.position());
const int pos = tabs.columnAt(cursor.block().text(), cursor.positionInBlock());
while (block.isValid() && block != end) {
const int columns = tabs.columnCountForText(block.text());
if (columns >= anchor || columns >= pos) {
QTextCursor c(block);
c.setPosition(block.position() + tabs.positionAtColumn(block.text(), anchor));
c.setPosition(block.position() + tabs.positionAtColumn(block.text(), pos),
QTextCursor::KeepAnchor);
mtc.addCursor(c);
}
block = forwardSelection ? block.next() : block.previous();
}
tew->setMultiTextCursor(mtc);
}
});
handler->requestBlockSelection.connect([tew](QTextCursor *cursor) {
if (tew && cursor)
*cursor = tew->blockSelection();
if (tew && cursor) {
MultiTextCursor mtc = tew->multiTextCursor();
*cursor = mtc.cursors().first();
cursor->setPosition(mtc.mainCursor().position(), QTextCursor::KeepAnchor);
}
});
handler->requestHasBlockSelection.connect([tew](bool *on) {
if (tew && on)
*on = tew->hasBlockSelection();
*on = tew->multiTextCursor().hasMultipleCursors();
});
handler->simpleCompletionRequested.connect([this, handler](const QString &needle, bool forward) {