projects/infoscreen/screenmanager.cpp

#include "screenmanager.h"
#include <QDebug>
#include <stdlib.h>

//public
ScreenManager::ScreenManager(QTime on, QTime off)
   : screenOnTime(on), screenOffTime(off)
{
    QTime now = QTime::currentTime();
    screenEnabled = (now >=screenOnTime && now < screenOffTime);
    qDebug() << "screenManager constructor : " << screenEnabled << " : " << on << " : " << off;

    if (screenEnabled) { //force screen enabled, on upstart
        enableScreen();
    } else {
        disableScreen();
    }
}


void ScreenManager::timerTick()
{
    QTime now = QTime::currentTime();
    if (screenEnabled) {
        if (now >= screenOffTime) {
            disableScreen();
        }
    } else { //screenEnabled == false
        if (now >= screenOnTime && now < screenOffTime) {
            enableScreen();
        }
    }
}


//private
void ScreenManager::disableScreen()
{
    int res;
    screenEnabled = false;
    res = system("xset dpms force off");
    qDebug("disableScreen");
}


void ScreenManager::enableScreen()
{
    int res;
    screenEnabled = true;
    res = system("xset dpms force on");
    res = system("xset -dpms"); //disable energy star auto turn -off

    res = system("xset s reset");//disable screensaver
    res = system("xset s off");

    qDebug("enableScreen");
}
1	#include "screenmanager.h"
2	#include <QDebug>
3	#include <stdlib.h>
4
5	//public
6	ScreenManager::ScreenManager(QTime on, QTime off)
7	: screenOnTime(on), screenOffTime(off)
8	{
9	QTime now = QTime::currentTime();
10	screenEnabled = (now >=screenOnTime && now < screenOffTime);
11	qDebug() << "screenManager constructor : " << screenEnabled << " : " << on << " : " << off;
12
13	if (screenEnabled) { //force screen enabled, on upstart
14	enableScreen();
15	} else {
16	disableScreen();
17	}
18	}
19
20
21	void ScreenManager::timerTick()
22	{
23	QTime now = QTime::currentTime();
24	if (screenEnabled) {
25	if (now >= screenOffTime) {
26	disableScreen();
27	}
28	} else { //screenEnabled == false
29	if (now >= screenOnTime && now < screenOffTime) {
30	enableScreen();
31	}
32	}
33	}
34
35
36	//private
37	void ScreenManager::disableScreen()
38	{
39	int res;
40	screenEnabled = false;
41	res = system("xset dpms force off");
42	qDebug("disableScreen");
43	}
44
45
46	void ScreenManager::enableScreen()
47	{
48	int res;
49	screenEnabled = true;
50	res = system("xset dpms force on");
51	res = system("xset -dpms"); //disable energy star auto turn -off
52
53	res = system("xset s reset");//disable screensaver
54	res = system("xset s off");
55
56	qDebug("enableScreen");
57	}