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implement automatic completion popup and reformat on return

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This commit is contained in:
Axel Kohlmeyer
2023-09-01 07:27:52 -04:00
parent 65866156dd
commit b2ba1bbe70
5 changed files with 75 additions and 5 deletions
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46
tools/lammps-gui/codeeditor.cpp
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@ -290,9 +290,10 @@ void CodeEditor::setCommandList(const QStringList &words)
void CodeEditor::keyPressEvent(QKeyEvent *event)
{
const auto key = event->key();
if (command_completer && command_completer->popup()->isVisible()) {
// The following keys are forwarded by the completer to the widget
switch (event->key()) {
switch (key) {
case Qt::Key_Enter:
case Qt::Key_Return:
case Qt::Key_Escape:
@ -304,15 +305,47 @@ void CodeEditor::keyPressEvent(QKeyEvent *event)
break;
}
}
if (event->key() == Qt::Key_Tab) {
// reformat current line and consume key event
if (key == Qt::Key_Tab) {
reformatCurrentLine();
return;
}
if (event->key() == Qt::Key_Backtab) {
// run command completion and consume key event
if (key == Qt::Key_Backtab) {
runCompletion();
return;
}
// automatically reformat when hitting the return or enter key
if (reformat_on_return && (key == Qt::Key_Return) || (key == Qt::Key_Enter)) {
reformatCurrentLine();
}
// pass key event on to parent class
QPlainTextEdit::keyPressEvent(event);
// pop up completion automatically after 3 characters
if (automatic_completion) {
auto cursor = textCursor();
auto line = cursor.block().text().trimmed();
if (!line.isEmpty()) {
auto words = split_line(line.toStdString());
cursor.select(QTextCursor::WordUnderCursor);
auto word = cursor.selectedText().trimmed();
if (command_completer) {
if (words[0] == word.toStdString()) {
if (word.length() > 2)
runCompletion();
else if (command_completer->popup()->isVisible())
command_completer->popup()->hide();
} else {
if (command_completer->popup()->isVisible()) command_completer->popup()->hide();
}
}
}
}
}
void CodeEditor::updateLineNumberAreaWidth(int /* newBlockCount */)
@ -475,7 +508,12 @@ void CodeEditor::runCompletion()
command_completer->setCompletionPrefix(words[0].c_str());
auto popup = command_completer->popup();
QRect cr = cursorRect();
// if the command is already a complete command, remove existing popup
if (words[0] == command_completer->currentCompletion().toStdString()) {
if (popup->isVisible()) popup->hide();
return;
}
QRect cr = cursorRect();
cr.setWidth(popup->sizeHintForColumn(0) +
popup->verticalScrollBar()->sizeHint().width());
popup->setAlternatingRowColors(true);