#ifndef PALETTE_H#define PALETTE_H#include <QtGui>#include "previewlabel.h"class Palette : public QWidget{	Q_OBJECTpublic:    Palette(QWidget *parent = 0);signals:	void penChanged(QPen& pen);	void brushChanged(QBrush& brush);private slots:	void penChanged();	void brushChanged();private:    QLabel *penColorLabel;    QLabel *penWidthLabel;    QLabel *penStyleLabel;    QLabel *brushColorLabel;    QLabel *brushStyleLabel;	PreviewLabel *preLabel;    QSpinBox *penWidthSpinBox;    QComboBox *penColorComboBox;    QComboBox *penStyleComboBox;    QComboBox *brushColorComboBox;    QComboBox *brushStyleComboBox;	void createColorComboBox(QComboBox *comboBox);	void createStyleComboBox();};#endif