projects/infoscreen/mainview.cpp

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

#include <QTimer>
#include <QKeyEvent>

#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 )
{
    int key = event->key();
    if (key == ' ' || key == Qt::Key_Return || key == Qt::Key_Enter) {
        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	torben	533	#include <QKeyEvent>
9	torben	510
10	torben	512	#include "MyWebView.h"
11	torben	515	#include "clientsiderender.h"
12	torben	524	#include "pictureview.h"
13	torben	527	#include "videoview.h"
14	torben	511
15	torben	528	#include "httpwrapper.h"
16
17
18	torben	509	MainView::MainView(QWidget* parent)
19	torben	534	: QWidget(parent)
20	torben	509	{
21	torben	534	this->resize(400,400);
22			this->setWindowState( Qt::WindowFullScreen );
23			this->grabKeyboard();
24	torben	516
25	torben	534	qApp->setOverrideCursor( QCursor( Qt::BlankCursor) );
26	torben	510
27	torben	534	render = new ClientSideRender(this);
28			render->setVisible( false );
29	torben	524
30	torben	534	web = new MyWebView(this);
31			web->setVisible( false);
32	torben	511
33	torben	534	picture = new PictureView(this);
34			picture->setVisible( false );
35	torben	517
36	torben	534	video = new VideoView(this);
37			video->setVisible(false);
38	torben	517
39	torben	534	QVBoxLayout* layout = new QVBoxLayout();
40			layout->addWidget(web,1);
41			layout->addWidget(render,1);
42			layout->addWidget(picture,1);
43			layout->addWidget(video,1);
44			layout->addStretch();
45			layout->setContentsMargins(0,0,0,0);
46			setLayout(layout);
47	torben	510
48	torben	528
49
50	torben	534	QTimer* timer = new QTimer(this);
51			connect(timer, SIGNAL(timeout() ), this, SLOT(onTimer() ));
52			timer->start(100);
53	torben	517
54	torben	509	}
55
56	torben	532	void MainView::keyPressEvent ( QKeyEvent* event )
57			{
58	torben	533	int key = event->key();
59			if (key == ' ' \|\| key == Qt::Key_Return \|\| key == Qt::Key_Enter) {
60			qApp->quit();
61			}
62	torben	532	}
63	torben	509
64			void MainView::onTimer()
65			{
66	torben	512	screenManager.timerTick();
67	torben	524
68	torben	528	readXml();
69	torben	527
70	torben	528	switchScreens();
71			}
72	torben	527
73	torben	524
74	torben	528	bool MainView::readXml()
75			{
76			const int TIMEOUT = 30601000; // 30 minutter
77			if ( lastXml.isNull() \|\| lastXml.elapsed() > TIMEOUT) {
78	torben	529
79	torben	528	xmlHandler.readXml( "http://infoscreen.sundhedhorsens.dk/infoscreen/screen_xml.php?screen_id=1" );
80	torben	527
81	torben	528	lastXml = QTime::currentTime();
82
83			screenItems = xmlHandler.getScreenSet();
84
85			if ( currentItemIdx >= screenItems.size() )
86			currentItemIdx = screenItems.size()-1; //avoid overflow
87
88
89			return true;
90			} else {
91			return false;
92	torben	524	}
93	torben	509	}
94	torben	528
95			void MainView::switchScreens()
96			{
97
98			if (lastScreenSwitch.isNull() \|\| lastScreenSwitch.elapsed() > (currentItem.runtime*1000)) {
99
100	torben	529	QTime now = QTime::currentTime();
101	torben	528	if (lastScreenSwitch.isNull())
102	torben	529	currentItemIdx = -1;
103
104			bool found = false;
105			int tries = 0;
106
107	torben	534	if (screenItems.size() > 0) { //only try if we have a any screens
108			while (found == false && tries <= screenItems.size()) { //find next with valid display time
109			tries++;
110			currentItemIdx = (currentItemIdx+1) % screenItems.size();
111			currentItem = screenItems.at(currentItemIdx);
112	torben	529
113	torben	534	if (currentItem.start <= now && now <= currentItem.stop )
114			found = true;
115			}
116	torben	529	}
117
118			if (found) {
119
120			if (currentItem.module == "info_image") {
121			ensureVisible(picture);
122
123			picture->loadFromUrl( currentItem.url );
124
125			}
126
127
128			} else {
129			qDebug() << "no screen";
130			hideAll();
131			}
132	torben	528	lastScreenSwitch = QTime::currentTime();
133	torben	529
134	torben	528	}
135			}
136	torben	529
137			void MainView::ensureVisible(QWidget* widget)
138			{
139			if (! widget->isVisible()) {
140			hideAll();
141			widget->setVisible(true);
142			}
143			}
144
145			void MainView::hideAll()
146			{
147			render->setVisible( false );
148			web->setVisible( false);
149			picture->setVisible( false );
150			video->setVisible(false);
151			}