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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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40
src/libs/utils/uncommentselection.cpp
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@@ -24,10 +24,14 @@
****************************************************************************/
#include "uncommentselection.h"
#include "qtcassert.h"
#include "utils/multitextcursor.h"
#include <QPlainTextEdit>
#include <QTextBlock>
using namespace Utils;
namespace Utils {
CommentDefinition CommentDefinition::CppStyle = CommentDefinition("//", "/*", "*/");
CommentDefinition CommentDefinition::HashStyle = CommentDefinition("#");
@@ -74,9 +78,9 @@ static bool isComment(const QString &text, int index,
}
QTextCursor Utils::unCommentSelection(const QTextCursor &cursorIn,
const CommentDefinition &definition,
bool preferSingleLine)
QTextCursor unCommentSelection(const QTextCursor &cursorIn,
const CommentDefinition &definition,
bool preferSingleLine)
{
if (!definition.isValid())
return cursorIn;
@@ -244,3 +248,31 @@ QTextCursor Utils::unCommentSelection(const QTextCursor &cursorIn,
}
return cursor;
}
MultiTextCursor unCommentSelection(const MultiTextCursor &cursorIn,
const CommentDefinition &definiton,
bool preferSingleLine)
{
if (cursorIn.isNull())
return cursorIn;
if (!cursorIn.hasMultipleCursors())
return MultiTextCursor({unCommentSelection(cursorIn.mainCursor(), definiton, preferSingleLine)});
QMap<int, QTextCursor> cursors;
for (const QTextCursor &c : cursorIn) {
QTextBlock block = c.document()->findBlock(c.selectionStart());
QTC_ASSERT(block.isValid(), continue);
QTextBlock end = c.document()->findBlock(c.selectionEnd());
QTC_ASSERT(end.isValid(), continue);
end = end.next();
while (block != end && block.isValid()) {
if (!cursors.contains(block.blockNumber()))
cursors.insert(block.blockNumber(), QTextCursor(block));
block = block.next();
}
}
for (const QTextCursor &c : cursors)
unCommentSelection(c, definiton, /*always prefer single line for multi cursor*/ true);
return cursorIn;
}
} // namespace Utils