projects/infoscreen/MainView.cpp

#include "MainView.h"
#include <QApplication>
#include <QPushButton>
#include <QLabel>
#include <QVBoxLayout>

#include <QTimer>

#include "MyWebView.h"
#include "clientsiderender.h"
#include "pictureview.h"
#include "videoview.h"

#include "httpwrapper.h"


MainView::MainView(QWidget* parent)
 : QWidget(parent)
{
        this->resize(400,400);
        this->setWindowState( Qt::WindowFullScreen );

        qApp->setOverrideCursor( QCursor( Qt::BlankCursor) );

        render = new ClientSideRender(this);
        render->setVisible( false );

        web = new MyWebView(this);
        web->setVisible( false);

        picture = new PictureView(this);
        picture->setVisible( false );

        video = new VideoView(this);
        video->setVisible(false);

        QVBoxLayout* layout = new QVBoxLayout();
        layout->addWidget(web,1);
        layout->addWidget(render,1);
        layout->addWidget(picture,1);
        layout->addWidget(video,1);
        layout->addStretch();
        layout->setContentsMargins(0,0,0,0);
        setLayout(layout);


        QTimer* timer = new QTimer(this);
        connect(timer, SIGNAL(timeout() ), this, SLOT(onTimer() ));
        timer->start(100);

}


void MainView::onTimer()
{
    screenManager.timerTick();

    readXml();

    switchScreens();
}


bool MainView::readXml()
{
    const int TIMEOUT = 30*60*1000; // 30 minutter
    if ( lastXml.isNull() || lastXml.elapsed() > TIMEOUT) {

        xmlHandler.readXml( "http://infoscreen.sundhedhorsens.dk/infoscreen/screen_xml.php?screen_id=1" );

        lastXml = QTime::currentTime();

        screenItems = xmlHandler.getScreenSet();

        if ( currentItemIdx >= screenItems.size() )
            currentItemIdx = screenItems.size()-1; //avoid overflow


        return true;
    } else {
        return false;
    }
}

void MainView::switchScreens()
{

    if (lastScreenSwitch.isNull() || lastScreenSwitch.elapsed() > (currentItem.runtime*1000)) {

        QTime now = QTime::currentTime();
        if (lastScreenSwitch.isNull())
            currentItemIdx = -1;

        bool found = false;
        int tries = 0;


        while (found == false && tries <= screenItems.size()) { //find next with valid display time
            tries++;
            currentItemIdx = (currentItemIdx+1) % screenItems.size();
            currentItem = screenItems.at(currentItemIdx);

            if (currentItem.start <= now && now <= currentItem.stop )
                found = true;
        }

        if (found) {

            if (currentItem.module == "info_image") {
                ensureVisible(picture);

                picture->loadFromUrl( currentItem.url );

            }


        } else {
            qDebug() << "no screen";
            hideAll();
        }
        lastScreenSwitch = QTime::currentTime();

    }
}

void MainView::ensureVisible(QWidget* widget)
{
    if (! widget->isVisible()) {
        hideAll();
        widget->setVisible(true);
    }
}

void MainView::hideAll()
{
    render->setVisible( false );
    web->setVisible( false);
    picture->setVisible( false );
    video->setVisible(false);
}
1	#include "MainView.h"
2	#include <QApplication>
3	#include <QPushButton>
4	#include <QLabel>
5	#include <QVBoxLayout>
6
7	#include <QTimer>
8
9	#include "MyWebView.h"
10	#include "clientsiderender.h"
11	#include "pictureview.h"
12	#include "videoview.h"
13
14	#include "httpwrapper.h"
15
16
17	MainView::MainView(QWidget* parent)
18	: QWidget(parent)
19	{
20	this->resize(400,400);
21	this->setWindowState( Qt::WindowFullScreen );
22
23	qApp->setOverrideCursor( QCursor( Qt::BlankCursor) );
24
25	render = new ClientSideRender(this);
26	render->setVisible( false );
27
28	web = new MyWebView(this);
29	web->setVisible( false);
30
31	picture = new PictureView(this);
32	picture->setVisible( false );
33
34	video = new VideoView(this);
35	video->setVisible(false);
36
37	QVBoxLayout* layout = new QVBoxLayout();
38	layout->addWidget(web,1);
39	layout->addWidget(render,1);
40	layout->addWidget(picture,1);
41	layout->addWidget(video,1);
42	layout->addStretch();
43	layout->setContentsMargins(0,0,0,0);
44	setLayout(layout);
45
46
47
48	QTimer* timer = new QTimer(this);
49	connect(timer, SIGNAL(timeout() ), this, SLOT(onTimer() ));
50	timer->start(100);
51
52	}
53
54
55	void MainView::onTimer()
56	{
57	screenManager.timerTick();
58
59	readXml();
60
61	switchScreens();
62	}
63
64
65	bool MainView::readXml()
66	{
67	const int TIMEOUT = 30601000; // 30 minutter
68	if ( lastXml.isNull() \|\| lastXml.elapsed() > TIMEOUT) {
69
70	xmlHandler.readXml( "http://infoscreen.sundhedhorsens.dk/infoscreen/screen_xml.php?screen_id=1" );
71
72	lastXml = QTime::currentTime();
73
74	screenItems = xmlHandler.getScreenSet();
75
76	if ( currentItemIdx >= screenItems.size() )
77	currentItemIdx = screenItems.size()-1; //avoid overflow
78
79
80	return true;
81	} else {
82	return false;
83	}
84	}
85
86	void MainView::switchScreens()
87	{
88
89	if (lastScreenSwitch.isNull() \|\| lastScreenSwitch.elapsed() > (currentItem.runtime*1000)) {
90
91	QTime now = QTime::currentTime();
92	if (lastScreenSwitch.isNull())
93	currentItemIdx = -1;
94
95	bool found = false;
96	int tries = 0;
97
98
99	while (found == false && tries <= screenItems.size()) { //find next with valid display time
100	tries++;
101	currentItemIdx = (currentItemIdx+1) % screenItems.size();
102	currentItem = screenItems.at(currentItemIdx);
103
104	if (currentItem.start <= now && now <= currentItem.stop )
105	found = true;
106	}
107
108	if (found) {
109
110	if (currentItem.module == "info_image") {
111	ensureVisible(picture);
112
113	picture->loadFromUrl( currentItem.url );
114
115	}
116
117
118	} else {
119	qDebug() << "no screen";
120	hideAll();
121	}
122	lastScreenSwitch = QTime::currentTime();
123
124	}
125	}
126
127	void MainView::ensureVisible(QWidget* widget)
128	{
129	if (! widget->isVisible()) {
130	hideAll();
131	widget->setVisible(true);
132	}
133	}
134
135	void MainView::hideAll()
136	{
137	render->setVisible( false );
138	web->setVisible( false);
139	picture->setVisible( false );
140	video->setVisible(false);
141	}