menu.cpp

qt的基本实验!很简单!但是对你绝对有用!入门是最基本的!什么事情就怕没有入门!

#include "menu.h"

MainWidget::MainWidget(QWidget *parent, const char *name): QMainWindow(parent, name)
{	//set caption and backgroundcolor
	setCaption("Qt_MENU_Example");
	setBackgroundColor(white);

	//add items to File menu
	QPopupMenu *file = new QPopupMenu;
	QFont f1("Helvetica", 14, QFont::Bold);
	setFont(f1);
	file->setFont(f1);
	file->insertItem("&New", this, SLOT(newFile()), CTRL+Key_N);
	file->insertItem("&Open", this, SLOT(openFile()), CTRL+Key_O);
	file->insertItem("&Save", this, SLOT(saveFile()), CTRL+Key_S);
	file->insertItem("&Quit", this, SLOT(quitMain()), CTRL+Key_Q);

	//add items to Help menu
	QPopupMenu *help = new QPopupMenu;
	help->setFont(f1);
	help->insertItem("&Help", this, SLOT(helpFile()), CTRL+Key_H);
	help->insertItem("About", this, SLOT(aboutMe()));

	//Create 'File' & 'Help' menu
	QMenuBar *menu;
	menu = new QMenuBar(this);
	QFont f2("Helvetica", 18, QFont::Bold);
	setFont(f2);
	menu->setFont(f2);			//set Font
	menu->insertItem("&File", file);	//create 'FIle'
	menu->insertItem("&Help", help);	//create 'Help'

	//create lebel
	label = new QLabel("", this);
	label->setGeometry(60, 100, 250, 20);
	label->setBackgroundColor(white);
	label->setFont(f1);
}

void MainWidget::newFile()
{
	label->setText("Create a New File!");
}

void MainWidget::openFile()
{
	label->setText("File has been opened!");
}

void MainWidget::saveFile()
{
	label->setText("File has been saved!");
}

void MainWidget::quitMain()
{
	QApplication::exit();
}

void MainWidget::helpFile()
{
	label->setText("Help Files, or press F1.");
}

void MainWidget::aboutMe()
{
	label->setText("(C) GUANGZHOU ZHIYUAN");
}

int main(int argc, char **argv)
{
	QApplication app(argc, argv);
	MainWidget *mainwidget = new MainWidget(0);
	mainwidget->setGeometry(10, 30, 320, 240);
	app.setMainWidget(mainwidget);
	mainwidget->show();

	int result = app.exec();
	return result;
}