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 );
                this->grabKeyboard();

        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::keyPressEvent ( QKeyEvent* event )
{
        Q_UNUSED(event);
        qApp->quit();
}  

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;

                if (screenItems.size() > 0) { //only try if we have a any screens
                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	this->grabKeyboard();
23
24	qApp->setOverrideCursor( QCursor( Qt::BlankCursor) );
25
26	render = new ClientSideRender(this);
27	render->setVisible( false );
28
29	web = new MyWebView(this);
30	web->setVisible( false);
31
32	picture = new PictureView(this);
33	picture->setVisible( false );
34
35	video = new VideoView(this);
36	video->setVisible(false);
37
38	QVBoxLayout* layout = new QVBoxLayout();
39	layout->addWidget(web,1);
40	layout->addWidget(render,1);
41	layout->addWidget(picture,1);
42	layout->addWidget(video,1);
43	layout->addStretch();
44	layout->setContentsMargins(0,0,0,0);
45	setLayout(layout);
46
47
48
49	QTimer* timer = new QTimer(this);
50	connect(timer, SIGNAL(timeout() ), this, SLOT(onTimer() ));
51	timer->start(100);
52
53	}
54
55	void MainView::keyPressEvent ( QKeyEvent* event )
56	{
57	Q_UNUSED(event);
58	qApp->quit();
59	}
60
61	void MainView::onTimer()
62	{
63	screenManager.timerTick();
64
65	readXml();
66
67	switchScreens();
68	}
69
70
71	bool MainView::readXml()
72	{
73	const int TIMEOUT = 30601000; // 30 minutter
74	if ( lastXml.isNull() \|\| lastXml.elapsed() > TIMEOUT) {
75
76	xmlHandler.readXml( "http://infoscreen.sundhedhorsens.dk/infoscreen/screen_xml.php?screen_id=1" );
77
78	lastXml = QTime::currentTime();
79
80	screenItems = xmlHandler.getScreenSet();
81
82	if ( currentItemIdx >= screenItems.size() )
83	currentItemIdx = screenItems.size()-1; //avoid overflow
84
85
86	return true;
87	} else {
88	return false;
89	}
90	}
91
92	void MainView::switchScreens()
93	{
94
95	if (lastScreenSwitch.isNull() \|\| lastScreenSwitch.elapsed() > (currentItem.runtime*1000)) {
96
97	QTime now = QTime::currentTime();
98	if (lastScreenSwitch.isNull())
99	currentItemIdx = -1;
100
101	bool found = false;
102	int tries = 0;
103
104	if (screenItems.size() > 0) { //only try if we have a any screens
105	while (found == false && tries <= screenItems.size()) { //find next with valid display time
106	tries++;
107	currentItemIdx = (currentItemIdx+1) % screenItems.size();
108	currentItem = screenItems.at(currentItemIdx);
109
110	if (currentItem.start <= now && now <= currentItem.stop )
111	found = true;
112	}
113	}
114
115	if (found) {
116
117	if (currentItem.module == "info_image") {
118	ensureVisible(picture);
119
120	picture->loadFromUrl( currentItem.url );
121
122	}
123
124
125	} else {
126	qDebug() << "no screen";
127	hideAll();
128	}
129	lastScreenSwitch = QTime::currentTime();
130
131	}
132	}
133
134	void MainView::ensureVisible(QWidget* widget)
135	{
136	if (! widget->isVisible()) {
137	hideAll();
138	widget->setVisible(true);
139	}
140	}
141
142	void MainView::hideAll()
143	{
144	render->setVisible( false );
145	web->setVisible( false);
146	picture->setVisible( false );
147	video->setVisible(false);
148	}