timedialog.cpp

linux 下 qt 编写的阅读器实例！

#include <QtGui>

 #include "timedialog.h"

TimeDialog::TimeDialog(QWidget *parent): QDialog(parent)
{
	QGridLayout *timeLayout = new QGridLayout;

    timecheck = new QCheckBox(tr("Period Alarm"));
	timeLayout->addWidget(timecheck,0,0);
	
	 time = new QSpinBox;
     time->setRange(1, 300);
     time->setSuffix(" Minutes");
     time->setValue(15);

	timeLayout->addWidget(time,1,1);
	timelabel = new QLabel(tr("Alarm Every"));
	timeLayout->addWidget(timelabel,1,0);
	timegroup = new QGroupBox(tr("Timer Setting"));
	timegroup->setLayout(timeLayout);
	timeLayout->setColumnStretch(2, 1);
    timeLayout->setRowStretch(2, 1);

    QVBoxLayout *clockLayout = new QVBoxLayout;
    clockcheck = new QCheckBox(tr("Alarm Clock"));
	clockLayout->addWidget(clockcheck);
	clock = new QTimeEdit();
	clock->setDisplayFormat("hh:mm:ss");
	clockLayout->addWidget(clock);
    clockgroup = new QGroupBox(tr("Clock Setting"));
	clockgroup->setLayout(clockLayout);

	QGridLayout *buttonLayout = new QGridLayout;
	ok = createButton(tr("&OK"), this, SLOT(accept()));
	cancel = createButton(tr("&Cancel"), this, SLOT(reject()));
    buttonLayout->addWidget(ok, 0, 0);
	buttonLayout->addWidget(cancel,0,1);


     QVBoxLayout *mainLayout = new QVBoxLayout;
     mainLayout->addWidget(timegroup);
     mainLayout->addWidget(clockgroup);
	 mainLayout->addLayout(buttonLayout);
     mainLayout->addSpacing(2);
     mainLayout->addStretch(1);
     setLayout(mainLayout);

     setWindowTitle(tr("Alarm Setting"));

	 connect(ok, SIGNAL(clicked()), this, SLOT(writeSettings()));
	 connect(clockcheck, SIGNAL(clicked()), this, SLOT(setclockstate()));
	 connect(timecheck, SIGNAL(clicked()), this, SLOT(settimestate()));

	 clocktimer = new QTimer(this);
	 periodtimer = new QTimer(this);

	 connect(clocktimer, SIGNAL(timeout()), this, SLOT(clockAlarmMessage()));
	 connect(periodtimer,SIGNAL(timeout()), this, SLOT(timeAlarmMessage()));

	 readSettings();
}

QPushButton *TimeDialog::createButton(const QString &text, QWidget *receiver,
                                       const char *member)
 {
     QPushButton *button = new QPushButton(text);
     button->connect(button, SIGNAL(clicked()), receiver, member);
     return button;
 }

void TimeDialog::writeSettings()
{
	QSettings settings("Qreadbook", "Configuration");

	if (clockcheck->checkState() == Qt::Checked)
	{
		settings.setValue("clockflag", Qt::Checked);
		clocktimer->start(1000);
	}
	else if (clockcheck->checkState() == Qt::Unchecked)
	{
		settings.setValue("clockflag", Qt::Unchecked);
		clocktimer->stop();
	}

	if (timecheck->checkState() == Qt::Checked)
	{
		settings.setValue("timeflag", Qt::Checked);
		periodtimer->start(time->value()*60*1000);
	}
	else if (timecheck->checkState() == Qt::Unchecked)
	{
		settings.setValue("timeflag", Qt::Unchecked);
		periodtimer->stop();
	}

    settings.setValue("timeperiod", time->value());
	settings.setValue("clockvalue", clock->time().toString());
}

void TimeDialog::readSettings()
{
	QSettings settings("Qreadbook", "Configuration");

	int flag; 
	flag = settings.value("clockflag", Qt::Unchecked).toInt();
	if (flag == Qt::Unchecked)
	{
		clock->setTime(QTime::fromString(settings.value("clockvalue", "00:00:00").toString(), "hh:mm:ss"));
		clockcheck->setCheckState(Qt::Unchecked);
		clock->setEnabled(false);
		clocktimer->stop();
	}
	else if (flag == Qt::Checked)
	{
		clock->setTime(QTime::fromString(settings.value("clockvalue", "00:00:00").toString(), "hh:mm:ss"));
		clockcheck->setCheckState(Qt::Checked);
		clock->setEnabled(true);
		clocktimer->start(1000);
	}

	flag = settings.value("timeflag", Qt::Unchecked).toInt();
	if (flag == Qt::Unchecked)
	{
		time->setValue(settings.value("timeperiod", 15).toInt());
		timecheck->setCheckState(Qt::Unchecked);
		time->setEnabled(false);
		periodtimer->stop();
	}
	else if (flag == Qt::Checked)
	{
		time->setValue(settings.value("timeperiod", 15).toInt());
		timecheck->setCheckState(Qt::Checked);
		time->setEnabled(true);
		periodtimer->start(time->value()*60*1000);
	}
}

void TimeDialog::setclockstate()
{
	if (clockcheck->checkState() == Qt::Checked)
	{
		clock->setEnabled(true);
		
	}
	else if (clockcheck->checkState() == Qt::Unchecked)
	{
		clock->setEnabled(false);
		
	}
}

void TimeDialog::settimestate()
{
	if (timecheck->checkState() == Qt::Checked)
	{
		time->setEnabled(true);
	}
	else if (timecheck->checkState() == Qt::Unchecked)
	{
		time->setEnabled(false);
		
	}
}


void TimeDialog::clockAlarmMessage()
{
	QString about = "Please relax yourself and your eyes for a while:)"; 

    if (QTime::currentTime().toString() == clock->time().toString())
    {
		QMessageBox::information( this,"QReadBook - Clock Alarm", about , QMessageBox::Ok );
    }
}

void TimeDialog::timeAlarmMessage()
{
	QString about = "Please relax yourself and your eyes for a while:)"; 

QMessageBox::information( this,
"QReadBook - Period Alarm", about , QMessageBox::Ok );
}