88 lines
2.1 KiB
C++
88 lines
2.1 KiB
C++
#include "./codeedit.h"
|
|
|
|
#include "../misc/utility.h"
|
|
|
|
#include <QTextBlock>
|
|
#include <QTextDocumentFragment>
|
|
|
|
namespace QtGui {
|
|
|
|
CodeEdit::CodeEdit(QWidget *parent)
|
|
: QPlainTextEdit(parent)
|
|
, m_indentation(QStringLiteral(" "))
|
|
{
|
|
}
|
|
|
|
CodeEdit::~CodeEdit()
|
|
{
|
|
}
|
|
|
|
void CodeEdit::keyPressEvent(QKeyEvent *e)
|
|
{
|
|
if (textCursor().selection().isEmpty()) {
|
|
switch (e->key()) {
|
|
case Qt::Key_Tab:
|
|
textCursor().insertText(m_indentation);
|
|
return;
|
|
case Qt::Key_Return:
|
|
handleReturn(e);
|
|
return;
|
|
case Qt::Key_Backspace:
|
|
handleDelete(e);
|
|
return;
|
|
default:;
|
|
}
|
|
}
|
|
QPlainTextEdit::keyPressEvent(e);
|
|
}
|
|
|
|
void CodeEdit::handleReturn(QKeyEvent *)
|
|
{
|
|
QTextCursor cursor = textCursor();
|
|
QString line = cursor.block().text();
|
|
int index = 0;
|
|
for (const QChar &c : line) {
|
|
if (c.isSpace()) {
|
|
++index;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
if (index < line.size() && line.at(index) == QChar('}')) {
|
|
if (index > 0) {
|
|
int beg = index;
|
|
index -= Utility::containerSizeToInt(m_indentation.size());
|
|
cursor.select(QTextCursor::BlockUnderCursor);
|
|
cursor.deleteChar();
|
|
cursor.insertBlock();
|
|
cursor.insertText(line.mid(0, index));
|
|
if (index + 1 < line.size()) {
|
|
cursor.insertText(line.mid(beg));
|
|
}
|
|
}
|
|
}
|
|
cursor.insertBlock();
|
|
if (index > 0) {
|
|
cursor.insertText(line.mid(0, index));
|
|
}
|
|
if (line.endsWith(QChar('{'))) {
|
|
cursor.insertText(m_indentation);
|
|
}
|
|
}
|
|
|
|
void CodeEdit::handleDelete(QKeyEvent *e)
|
|
{
|
|
QTextCursor cursor = textCursor();
|
|
QString line = cursor.block().text();
|
|
if (line.endsWith(m_indentation)) {
|
|
cursor.select(QTextCursor::BlockUnderCursor);
|
|
cursor.deleteChar();
|
|
cursor.insertBlock();
|
|
cursor.insertText(line.mid(0, line.size() - m_indentation.size()));
|
|
} else {
|
|
QPlainTextEdit::keyPressEvent(e);
|
|
}
|
|
}
|
|
|
|
} // namespace QtGui
|