fixed text-based keyframes

ui/texteditex.cpp

@@ -0,0 +1,19 @@
+#include "texteditex.h"
+
+#include <QDebug>
+
+TextEditEx::TextEditEx(QWidget *parent) : QTextEdit(parent) {}
+
+void TextEditEx::setPlainTextEx(const QString &text) {
+	blockSignals(true);
+
+	int pos = textCursor().position();
+
+	setPlainText(text);
+
+	QTextCursor newCursor(document());
+	newCursor.setPosition(pos);
+	setTextCursor(newCursor);
+
+	blockSignals(false);
+}