mainframe.h

用QT设计的手持设备PDF阅读器。实现了阅读

#ifndef MAINFRAME_H
#define MAINFRAME_H

#include <QString>
#include <QDebug>
#include <QFileDialog>
#include <QGraphicsView>
#include <QComboBox>
#include <QtGui/QLineEdit>
#include <QLabel>
#include <QFileDialog>
#include <QAction>
#include <QByteArray>
#include <QImage>
#include <QPainter>
#include <QMessageBox>
#include <QtGlobal>
#include <QPrintDialog>
#include <QPrinter>
#include <QScrollArea>
#include <QScrollBar>
#include <QtGui/QGridLayout>

#include "ui_mainframe.h"

class Mainframe : public QMainWindow, public Ui::mainframe
{
	Q_OBJECT
public:
	QLineEdit *lineEdit;
    QLabel *label;
	QGridLayout *gridLayout;
	Mainframe(QWidget * parent = 0, Qt::WindowFlags f = 0 );
	void createWidgets();

private slots:
	bool open();
	void save();
	void print();
	void about();
	void sceneScaleChanged(const QString &scale);
	void turnup();
	void turndown();
	void firstpage();
	void lastpage();
	void zoomIn();
    void zoomOut();
	
private:
	QGraphicsView *view;
	QComboBox *sceneScaleCombo;
	QImage image;
	QScrollArea *scrollArea;
	QPrinter printer;
	int allnum;
	int pagenum;
	double scaleFactor;
	bool saveFile(const QByteArray &fileFormat);
	bool saveImage(const QString &fileName, const char *fileFormat);
	void resizeImage(QImage *image, const QSize &newSize);
	void scaleImage(double factor);
	void adjustScrollBar(QScrollBar *scrollBar, double factor);
};
#endif