Fix racing condition in comic.cpp pdf render code (issue 25)

custom_widgets/yacreader_field_plain_text_edit.h

@@ -0,0 +1,25 @@
+#ifndef YACREADER_FIELD_PLAIN_TEXT_EDIT_H
+#define YACREADER_FIELD_PLAIN_TEXT_EDIT_H
+
+#include <QPlainTextEdit>
+
+class QAction;
+class QFocusEvent;
+
+
+class YACReaderFieldPlainTextEdit : public QPlainTextEdit
+{
+  Q_OBJECT
+	public:
+		YACReaderFieldPlainTextEdit(QWidget * parent = 0);
+		void clear();
+		void setDisabled(bool disabled);
+	protected:
+		void focusInEvent(QFocusEvent* e);
+		void focusOutEvent(QFocusEvent* e);
+private:
+	QAction * restore;
+
+};
+
+#endif // YACREADER_FIELD_PLAIN_TEXT_EDIT_H