projects/infoscreen/screenmanager.cpp

#include "screenmanager.h"

#include <stdlib.h>

//public
ScreenManager::ScreenManager()
   : screenOnTime(06,00), screenOffTime(22,00)
{
    QTime now = QTime::currentTime();
    screenEnabled = (now >=screenOnTime && now < screenOffTime);

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


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
3	#include <stdlib.h>
4
5	//public
6	ScreenManager::ScreenManager()
7	: screenOnTime(06,00), screenOffTime(22,00)
8	{
9	QTime now = QTime::currentTime();
10	screenEnabled = (now >=screenOnTime && now < screenOffTime);
11
12	if (screenEnabled) { //force screen enabled, on upstart
13	enableScreen();
14	}
15	}
16
17
18	void ScreenManager::timerTick()
19	{
20	QTime now = QTime::currentTime();
21	if (screenEnabled) {
22	if (now >= screenOffTime) {
23	disableScreen();
24	}
25	} else { //screenEnabled == false
26	if (now >= screenOnTime && now < screenOffTime) {
27	enableScreen();
28	}
29	}
30	}
31
32
33	//private
34	void ScreenManager::disableScreen()
35	{
36	int res;
37	screenEnabled = false;
38	res = system("xset dpms force off");
39	qDebug("disableScreen");
40	}
41
42
43	void ScreenManager::enableScreen()
44	{
45	int res;
46	screenEnabled = true;
47	res = system("xset dpms force on");
48	res = system("xset -dpms"); //disable energy star auto turn -off
49
50	res = system("xset s reset");//disable screensaver
51	res = system("xset s off");
52
53	qDebug("enableScreen");
54	}