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add feature to comment out and uncomment lines and selections from context menu

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This commit is contained in:
Axel Kohlmeyer
2023-10-30 15:25:06 -04:00
parent afa149ba1a
commit 5674786acd
3 changed files with 98 additions and 4 deletions
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96
tools/lammps-gui/codeeditor.cpp
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@ -34,6 +34,7 @@
#include <QShortcut>
#include <QStringListModel>
#include <QTextBlock>
#include <QTextDocumentFragment>
#include <QUrl>
#include <string>
@ -424,7 +425,7 @@ void CodeEditor::setVarNameList()
LammpsWrapper *lammps = &qobject_cast<LammpsGui *>(parent())->lammps;
int nvar = lammps->id_count("variable");
constexpr int BUFLEN = 256;
constexpr int BUFLEN = 256;
char buffer[BUFLEN];
for (int i = 0; i < nvar; ++i) {
memset(buffer, 0, BUFLEN);
@ -683,17 +684,34 @@ void CodeEditor::contextMenuEvent(QContextMenuEvent *event)
QString page, help;
find_help(page, help);
// print augmented context menu if an entry was found
auto *menu = createStandardContextMenu();
menu->addSeparator();
if (textCursor().hasSelection()) {
auto action1 = menu->addAction("Comment out selection");
action1->setIcon(QIcon(":/icons/expand-text.png"));
connect(action1, &QAction::triggered, this, &CodeEditor::comment_selection);
auto action2 = menu->addAction("Uncomment selection");
action2->setIcon(QIcon(":/icons/expand-text.png"));
connect(action2, &QAction::triggered, this, &CodeEditor::uncomment_selection);
} else {
auto action1 = menu->addAction("Comment out line");
action1->setIcon(QIcon(":/icons/expand-text.png"));
connect(action1, &QAction::triggered, this, &CodeEditor::comment_line);
auto action2 = menu->addAction("Uncomment line");
action2->setIcon(QIcon(":/icons/expand-text.png"));
connect(action2, &QAction::triggered, this, &CodeEditor::uncomment_line);
}
menu->addSeparator();
// print augmented context menu if an entry was found
if (!help.isEmpty()) {
auto action = menu->addAction(QString("Display available completions for '%1'").arg(help));
action->setIcon(QIcon(":/icons/expand-text.png"));
connect(action, &QAction::triggered, this, &CodeEditor::runCompletion);
menu->addSeparator();
}
if (!page.isEmpty()) {
menu->addSeparator();
auto action = menu->addAction(QString("Reformat '%1' command").arg(help));
action->setIcon(QIcon(":/icons/format-indent-less-3.png"));
connect(action, &QAction::triggered, this, &CodeEditor::reformatCurrentLine);
@ -741,6 +759,78 @@ void CodeEditor::reformatCurrentLine()
}
}
void CodeEditor::comment_line()
{
auto cursor = textCursor();
cursor.movePosition(QTextCursor::StartOfLine);
cursor.insertText("#");
}
void CodeEditor::comment_selection()
{
auto cursor = textCursor();
auto text = cursor.selection().toPlainText();
auto lines = text.split('\n');
QString newtext;
for (auto line : lines) {
newtext.append('#');
newtext.append(line);
newtext.append('\n');
}
if (newtext.isEmpty()) newtext = "#\n";
cursor.insertText(newtext);
setTextCursor(cursor);
}
void CodeEditor::uncomment_selection()
{
auto cursor = textCursor();
auto text = cursor.selection().toPlainText();
auto lines = text.split('\n');
QString newtext;
for (auto line : lines) {
QString newline;
bool start = true;
for (auto letter : line) {
if (start && (letter == '#')) {
start = false;
continue;
}
if (start && !letter.isSpace()) start = false;
newline.append(letter);
}
newtext.append(newline);
newtext.append('\n');
}
cursor.insertText(newtext);
setTextCursor(cursor);
}
void CodeEditor::uncomment_line()
{
auto cursor = textCursor();
auto text = cursor.block().text();
QString newtext;
bool start = true;
for (auto letter : text) {
if (start && (letter == '#')) {
start = false;
continue;
}
if (start && !letter.isSpace()) start = false;
newtext.append(letter);
}
// perform edit but only if text has changed
if (QString::compare(text, newtext)) {
cursor.beginEditBlock();
cursor.movePosition(QTextCursor::StartOfLine);
cursor.movePosition(QTextCursor::EndOfLine, QTextCursor::KeepAnchor, 1);
cursor.insertText(newtext);
cursor.endEditBlock();
}
}
void CodeEditor::runCompletion()
{
QAbstractItemView *popup = nullptr;