projects/infoscreen/mainview.cpp

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

#include <QTimer>
#include <QKeyEvent>
#include <QSettings>
#include <QMessageBox>

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

#include "httpwrapper.h"


MainView::MainView(QWidget* parent)
    : QWidget(parent), timer(0)
{

    settings = new QSettings("Caddi", "infoscreen");
    url = settings->value("url").toString();
    bool xmlMode = settings->value("xml").toBool();
    screenid = settings->value("screenid").toString();

    if (url == "" || screenid == "") {
        QMessageBox::warning(this,"infoscreen","Could not find url or screenid in config file " + settings->fileName());

        exit(1); //Normal qApp->exit() doesn't terminate the init sequence so use std C exit function
    }


    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);


    if (xmlMode == true) {
        xmlUrl = url + "?screen_id=" + screenid;
        qDebug() << "Starting XML mode";
        qDebug() << "xmlUrl" << xmlUrl;

        timer = new QTimer(this);
        connect(timer, SIGNAL(timeout() ), this, SLOT(onTimer() ));
        timer->start(100);
    } else {
        qDebug() << "Starting plain browser mode";
        web->setVisible(true);
        web->start(url,screenid);
    }
}

void MainView::closeEvent ( QCloseEvent * event )
{
    Q_UNUSED(event);
    exit(0); //force application shutdown
}

void MainView::keyPressEvent ( QKeyEvent* event )
{
    int key = event->key();
    if (key == ' ' || key == Qt::Key_Return || key == Qt::Key_Enter) {
        close();
    }
}  

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

    readXml();

    switchScreens();
}


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


        bool res = xmlHandler.readXml( xmlUrl );
                if (res == false)

        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 (video->isVisible() && video->isPlaying() ) {
        return; //wait until current clip has finished
    }

    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 );

            }
            if (currentItem.module == "info_web") {
                ensureVisible(web);
                web->load(currentItem.url);
            }
            if (currentItem.module == "info_video") {
                ensureVisible(video);
                video->loadUrl(currentItem.url);
            }


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

    }
}

void MainView::noInfoScreen()
{
        ensureVisible(web);
        web->setHtml("<html>\
                <body text='#505050' bgcolor='#000000'>\
                <table width='100%' height='100%'><tr><td align='center' valign='middel'><h1>Der er ingen information at vise</h1></td></tr></table>\
                </body></html>");
}

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	535	#include <QSettings>
10			#include <QMessageBox>
11	torben	510
12	torben	512	#include "MyWebView.h"
13	torben	515	#include "clientsiderender.h"
14	torben	524	#include "pictureview.h"
15	torben	527	#include "videoview.h"
16	torben	511
17	torben	528	#include "httpwrapper.h"
18
19
20	torben	509	MainView::MainView(QWidget* parent)
21	torben	537	: QWidget(parent), timer(0)
22	torben	509	{
23	torben	535
24			settings = new QSettings("Caddi", "infoscreen");
25			url = settings->value("url").toString();
26			bool xmlMode = settings->value("xml").toBool();
27			screenid = settings->value("screenid").toString();
28
29			if (url == "" \|\| screenid == "") {
30			QMessageBox::warning(this,"infoscreen","Could not find url or screenid in config file " + settings->fileName());
31
32			exit(1); //Normal qApp->exit() doesn't terminate the init sequence so use std C exit function
33			}
34
35
36
37	torben	534	this->resize(400,400);
38			this->setWindowState( Qt::WindowFullScreen );
39			this->grabKeyboard();
40	torben	516
41	torben	534	qApp->setOverrideCursor( QCursor( Qt::BlankCursor) );
42	torben	510
43	torben	534	render = new ClientSideRender(this);
44			render->setVisible( false );
45	torben	524
46	torben	534	web = new MyWebView(this);
47			web->setVisible( false);
48	torben	511
49	torben	534	picture = new PictureView(this);
50			picture->setVisible( false );
51	torben	517
52	torben	534	video = new VideoView(this);
53			video->setVisible(false);
54	torben	517
55	torben	534	QVBoxLayout* layout = new QVBoxLayout();
56			layout->addWidget(web,1);
57			layout->addWidget(render,1);
58			layout->addWidget(picture,1);
59			layout->addWidget(video,1);
60			layout->addStretch();
61			layout->setContentsMargins(0,0,0,0);
62			setLayout(layout);
63	torben	510
64	torben	528
65
66	torben	517
67	torben	535	if (xmlMode == true) {
68			xmlUrl = url + "?screen_id=" + screenid;
69			qDebug() << "Starting XML mode";
70			qDebug() << "xmlUrl" << xmlUrl;
71
72	torben	537	timer = new QTimer(this);
73	torben	535	connect(timer, SIGNAL(timeout() ), this, SLOT(onTimer() ));
74			timer->start(100);
75			} else {
76			qDebug() << "Starting plain browser mode";
77			web->setVisible(true);
78			web->start(url,screenid);
79			}
80	torben	537	}
81	torben	535
82	torben	537	void MainView::closeEvent ( QCloseEvent * event )
83			{
84			Q_UNUSED(event);
85			exit(0); //force application shutdown
86	torben	509	}
87
88	torben	532	void MainView::keyPressEvent ( QKeyEvent* event )
89			{
90	torben	533	int key = event->key();
91			if (key == ' ' \|\| key == Qt::Key_Return \|\| key == Qt::Key_Enter) {
92	torben	537	close();
93	torben	533	}
94	torben	532	}
95	torben	509
96			void MainView::onTimer()
97			{
98	torben	512	screenManager.timerTick();
99	torben	524
100	torben	528	readXml();
101	torben	527
102	torben	528	switchScreens();
103			}
104	torben	527
105	torben	524
106	torben	528	bool MainView::readXml()
107			{
108			const int TIMEOUT = 30601000; // 30 minutter
109			if ( lastXml.isNull() \|\| lastXml.elapsed() > TIMEOUT) {
110	torben	529
111	torben	527
112	torben	537	bool res = xmlHandler.readXml( xmlUrl );
113			if (res == false)
114	torben	535
115	torben	528	lastXml = QTime::currentTime();
116
117			screenItems = xmlHandler.getScreenSet();
118
119			if ( currentItemIdx >= screenItems.size() )
120			currentItemIdx = screenItems.size()-1; //avoid overflow
121
122
123			return true;
124			} else {
125			return false;
126	torben	524	}
127	torben	509	}
128	torben	528
129			void MainView::switchScreens()
130			{
131	torben	537	if (video->isVisible() && video->isPlaying() ) {
132			return; //wait until current clip has finished
133			}
134	torben	528
135			if (lastScreenSwitch.isNull() \|\| lastScreenSwitch.elapsed() > (currentItem.runtime*1000)) {
136
137	torben	529	QTime now = QTime::currentTime();
138	torben	528	if (lastScreenSwitch.isNull())
139	torben	529	currentItemIdx = -1;
140
141			bool found = false;
142			int tries = 0;
143
144	torben	534	if (screenItems.size() > 0) { //only try if we have a any screens
145			while (found == false && tries <= screenItems.size()) { //find next with valid display time
146			tries++;
147			currentItemIdx = (currentItemIdx+1) % screenItems.size();
148			currentItem = screenItems.at(currentItemIdx);
149	torben	529
150	torben	534	if (currentItem.start <= now && now <= currentItem.stop )
151			found = true;
152			}
153	torben	529	}
154
155			if (found) {
156
157			if (currentItem.module == "info_image") {
158			ensureVisible(picture);
159
160			picture->loadFromUrl( currentItem.url );
161
162			}
163	torben	537	if (currentItem.module == "info_web") {
164			ensureVisible(web);
165			web->load(currentItem.url);
166			}
167			if (currentItem.module == "info_video") {
168			ensureVisible(video);
169			video->loadUrl(currentItem.url);
170			}
171	torben	529
172
173			} else {
174			qDebug() << "no screen";
175	torben	537	noInfoScreen();
176	torben	529	}
177	torben	528	lastScreenSwitch = QTime::currentTime();
178	torben	529
179	torben	528	}
180			}
181	torben	529
182	torben	537	void MainView::noInfoScreen()
183			{
184			ensureVisible(web);
185			web->setHtml("<html>\
186			<body text='#505050' bgcolor='#000000'>\
187			<table width='100%' height='100%'><tr><td align='center' valign='middel'><h1>Der er ingen information at vise</h1></td></tr></table>\
188			</body></html>");
189			}
190
191	torben	529	void MainView::ensureVisible(QWidget* widget)
192			{
193			if (! widget->isVisible()) {
194			hideAll();
195			widget->setVisible(true);
196			}
197			}
198
199			void MainView::hideAll()
200			{
201			render->setVisible( false );
202			web->setVisible( false);
203			picture->setVisible( false );
204			video->setVisible(false);
205			}