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	torben	509	#include "MainView.h"
2	torben	512	#include <QApplication>
3	torben	510	#include <QPushButton>
4	torben	512	#include <QLabel>
5	torben	510	#include <QVBoxLayout>
6	torben	509
7	torben	510	#include <QTimer>
8
9	torben	512	#include "MyWebView.h"
10	torben	515	#include "clientsiderender.h"
11	torben	524	#include "pictureview.h"
12	torben	527	#include "videoview.h"
13	torben	511
14	torben	528	#include "httpwrapper.h"
15
16
17	torben	509	MainView::MainView(QWidget* parent)
18			: QWidget(parent)
19			{
20	torben	516	this->resize(400,400);
21	torben	512	this->setWindowState( Qt::WindowFullScreen );
22	torben	532	this->grabKeyboard();
23	torben	516
24	torben	526	qApp->setOverrideCursor( QCursor( Qt::BlankCursor) );
25	torben	510
26	torben	515	render = new ClientSideRender(this);
27	torben	517	render->setVisible( false );
28	torben	524
29	torben	515	web = new MyWebView(this);
30	torben	524	web->setVisible( false);
31	torben	511
32	torben	524	picture = new PictureView(this);
33	torben	529	picture->setVisible( false );
34	torben	517
35	torben	527	video = new VideoView(this);
36			video->setVisible(false);
37	torben	517
38	torben	510	QVBoxLayout* layout = new QVBoxLayout();
39	torben	515	layout->addWidget(web,1);
40			layout->addWidget(render,1);
41	torben	524	layout->addWidget(picture,1);
42	torben	527	layout->addWidget(video,1);
43	torben	510	layout->addStretch();
44			layout->setContentsMargins(0,0,0,0);
45	torben	515	setLayout(layout);
46	torben	510
47	torben	528
48
49	torben	510	QTimer* timer = new QTimer(this);
50			connect(timer, SIGNAL(timeout() ), this, SLOT(onTimer() ));
51	torben	528	timer->start(100);
52	torben	517
53	torben	509	}
54
55	torben	532	void MainView::keyPressEvent ( QKeyEvent* event )
56			{
57			Q_UNUSED(event);
58			qApp->quit();
59			}
60	torben	509
61			void MainView::onTimer()
62			{
63	torben	512	screenManager.timerTick();
64	torben	524
65	torben	528	readXml();
66	torben	527
67	torben	528	switchScreens();
68			}
69	torben	527
70	torben	524
71	torben	528	bool MainView::readXml()
72			{
73			const int TIMEOUT = 30601000; // 30 minutter
74			if ( lastXml.isNull() \|\| lastXml.elapsed() > TIMEOUT) {
75	torben	529
76	torben	528	xmlHandler.readXml( "http://infoscreen.sundhedhorsens.dk/infoscreen/screen_xml.php?screen_id=1" );
77	torben	527
78	torben	528	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	torben	524	}
90	torben	509	}
91	torben	528
92			void MainView::switchScreens()
93			{
94
95			if (lastScreenSwitch.isNull() \|\| lastScreenSwitch.elapsed() > (currentItem.runtime*1000)) {
96
97	torben	529	QTime now = QTime::currentTime();
98	torben	528	if (lastScreenSwitch.isNull())
99	torben	529	currentItemIdx = -1;
100
101			bool found = false;
102			int tries = 0;
103
104	torben	531	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	torben	529
110	torben	531	if (currentItem.start <= now && now <= currentItem.stop )
111			found = true;
112			}
113	torben	529	}
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	torben	528	lastScreenSwitch = QTime::currentTime();
130	torben	529
131	torben	528	}
132			}
133	torben	529
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			}