#pragma once // Forward declarations of commonly used Qt classes to reduce compilation dependencies. class QLineEdit; class QTextEdit; class QPushButton; class QCheckBox; class QComboBox; class QSpinBox; class QRadioButton; class QTabWidget; class QTableWidget; class QTreeWidget; class QProgressBar; class QGroupBox; class QSlider; class QScrollBar; class QLabel; namespace Qt { class QSeries; class QChartView; class QChart; }