projects/infoscreen/mainview.cpp

#include "MainView.h"
#include <QApplication>
#include <QPushButton>
#include <QLabel>
#include <QStackedLayout>
#include <QSvgWidget>

#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)
{
    loadSettings();

    if ( currentMode == ModeXml) {
        xmlUrl = url + "?screen_id=" + screenid;
        qDebug() << "Starting XML mode";
        qDebug() << "xmlUrl" << xmlUrl;
    }

    if (currentMode == ModeSimpleWeb){
        qDebug() << "Starting plain browser mode";
    }

    if (currentMode == ModeLocal ) {
        qDebug() << "Starting local mode";
        qDebug() << "path" <<  path;

        readLocalFiles();
    }

    this->resize(400,400);
    this->setWindowState( Qt::WindowFullScreen );
    this->grabKeyboard();

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

    render = new ClientSideRender(this);

    web = new MyWebView(this);

    picture = new PictureView(this);

    video = new VideoView(this);

    svg = new QSvgWidget(this);

    layout = new QStackedLayout();
    layout->addWidget(web);
    layout->addWidget(render);
    layout->addWidget(picture);
    layout->addWidget(video);
    layout->addWidget(svg);
    layout->setContentsMargins(0,0,0,0);
    setLayout(layout);

    if (currentMode == ModeSimpleWeb) {
        web->setVisible(true);
        web->start(url,screenid);
    }


    qDebug() << "Starting timer...";
    timer = new QTimer(this);
    connect(timer, SIGNAL(timeout() ), this, SLOT(onTimer() ));
    timer->start(100);
}

void MainView::loadSettings()
{
    settings = new QSettings("Caddi", "infoscreen");

    qDebug() << "Loading settings" << settings->fileName();

    QString mode = settings->value("mode").toString().toLower();
    if (mode == "simpleweb") {
        currentMode = ModeSimpleWeb;
    } else if (mode == "xml") {
        currentMode = ModeXml;
    } else if (mode == "local") {
        currentMode = ModeLocal;
    }  else {
        currentMode = ModeNone;
        QMessageBox::warning(this, "infoscreen", "no operation mode set or mode given an invalid value");
        exit(1);
    }


    if (currentMode == ModeSimpleWeb || currentMode == ModeXml) {
        url = settings->value("url").toString();
        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
        }
    }

    if (currentMode == ModeLocal) {
        path = settings->value("path").toString();

        if (path == "") {
            QMessageBox::warning(this,"infoscreen","Could not find path in config file " + settings->fileName());
            exit(1);
        }
    }
}

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()
{
    qDebug() << "onTimer()";
    screenManager.timerTick();

    if (currentMode == ModeXml) {
        readXml();
    }

    if (currentMode == ModeXml || currentMode == ModeLocal) {
        switchScreens();
    }
}


void MainView::readLocalFiles()
{
    QDir dir(path);
    if (! dir.exists()) {
        QMessageBox::warning(this,"infoscreen","Local Source directory not found: " + path);
        exit(1);
    }
    QFileInfoList files = dir.entryInfoList(QDir::Files, QDir::Name); //only files, sort by name

    for (int i=0; i<files.size(); ++i) {
        QFileInfo file = files[i];
        qDebug() << "Found" << file.fileName();

        ScreenItem item;
        item.url = file.filePath();
        item.module = ModuleUnknown;

        QString ext = file.suffix().toLower();
        if (ext == "avi" || ext == "mpg" || ext == "mpeg") {
            item.module = ModuleVideo;
            item.runtime = 1;
        }

        if (ext == "jpg" || ext == "jpeg" || ext == "png" ) {
            item.module = ModuleImage;
            item.runtime = 10;
        }

        if (ext == "svg") {
            item.module = ModuleSvg;
            item.runtime = 10;
        }
        
        if (ext == "htm" || ext == "html") {
            item.module = ModuleWeb;
            item.runtime = 10;
        }

        if (item.module != ModuleUnknown) { //no need to enqueue unknown modules
            screenItems.push_back( item );
        }

    }

    qDebug() << "Found " << screenItems.size() << " playable items";
}


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


        bool res = xmlHandler.readXml( xmlUrl );

        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.isValid() && currentItem.stop.isValid()) {
                    if (currentItem.start <= now && now <= currentItem.stop )
                        found = true;
                } else { // if start or stop time was invalid - show them always
                    found = true;
                }
            }
        }

        if (found) {
            switch(currentItem.module) {
            case ModuleImage:
                ensureVisible(picture);
                picture->loadFromUrl( currentItem.url );
                break;
            case ModuleWeb:
                ensureVisible(web);
                web->load(currentItem.url);
                break;
            case ModuleVideo:
                ensureVisible(video);
                video->loadUrl(currentItem.url);
                break;
            case ModuleSvg:
                ensureVisible(svg);
                svg->load(currentItem.url);
                break;
            default:
                // ModuleUnknown - what should we do??
                break;
            }

        } else {
            qDebug() << "no screen";
            errorInfoScreen("Der er ingen information at vise");
        }
        lastScreenSwitch = QTime::currentTime();

    }
}

void MainView::errorInfoScreen(QString msg)
{
        ensureVisible(web);
        web->setHtml("<html>\
                <body text='#505050' bgcolor='#000000'>\
        <table width='100%' height='100%'><tr><td align='center' valign='middel'><h1>" + msg+ "</h1></td></tr></table>\
                </body></html>");
}

void MainView::ensureVisible(QWidget* widget)
{
    layout->setCurrentWidget(widget);    
}
1	torben	509	#include "MainView.h"
2	torben	512	#include <QApplication>
3	torben	510	#include <QPushButton>
4	torben	512	#include <QLabel>
5	torben	870	#include <QStackedLayout>
6	torben	867	#include <QSvgWidget>
7	torben	509
8	torben	510	#include <QTimer>
9	torben	533	#include <QKeyEvent>
10	torben	535	#include <QSettings>
11			#include <QMessageBox>
12	torben	510
13	torben	512	#include "MyWebView.h"
14	torben	515	#include "clientsiderender.h"
15	torben	524	#include "pictureview.h"
16	torben	527	#include "videoview.h"
17	torben	511
18	torben	528	#include "httpwrapper.h"
19
20
21	torben	870
22	torben	509	MainView::MainView(QWidget* parent)
23	torben	537	: QWidget(parent), timer(0)
24	torben	509	{
25	torben	638	loadSettings();
26	torben	535
27	torben	638	if ( currentMode == ModeXml) {
28			xmlUrl = url + "?screen_id=" + screenid;
29			qDebug() << "Starting XML mode";
30			qDebug() << "xmlUrl" << xmlUrl;
31			}
32	torben	535
33	torben	638	if (currentMode == ModeSimpleWeb){
34			qDebug() << "Starting plain browser mode";
35	torben	535	}
36
37	torben	638	if (currentMode == ModeLocal ) {
38			qDebug() << "Starting local mode";
39			qDebug() << "path" << path;
40	torben	535
41	torben	638	readLocalFiles();
42			}
43	torben	535
44	torben	534	this->resize(400,400);
45			this->setWindowState( Qt::WindowFullScreen );
46			this->grabKeyboard();
47	torben	516
48	torben	534	qApp->setOverrideCursor( QCursor( Qt::BlankCursor) );
49	torben	510
50	torben	534	render = new ClientSideRender(this);
51	torben	524
52	torben	534	web = new MyWebView(this);
53	torben	511
54	torben	534	picture = new PictureView(this);
55	torben	517
56	torben	534	video = new VideoView(this);
57	torben	517
58	torben	867	svg = new QSvgWidget(this);
59
60	torben	870	layout = new QStackedLayout();
61			layout->addWidget(web);
62			layout->addWidget(render);
63			layout->addWidget(picture);
64			layout->addWidget(video);
65			layout->addWidget(svg);
66	torben	534	layout->setContentsMargins(0,0,0,0);
67			setLayout(layout);
68	torben	510
69	torben	872	if (currentMode == ModeSimpleWeb) {
70			web->setVisible(true);
71			web->start(url,screenid);
72			}
73	torben	528
74	torben	873
75			qDebug() << "Starting timer...";
76			timer = new QTimer(this);
77			connect(timer, SIGNAL(timeout() ), this, SLOT(onTimer() ));
78			timer->start(100);
79	torben	537	}
80	torben	535
81	torben	638	void MainView::loadSettings()
82			{
83			settings = new QSettings("Caddi", "infoscreen");
84
85			qDebug() << "Loading settings" << settings->fileName();
86
87			QString mode = settings->value("mode").toString().toLower();
88			if (mode == "simpleweb") {
89			currentMode = ModeSimpleWeb;
90			} else if (mode == "xml") {
91			currentMode = ModeXml;
92			} else if (mode == "local") {
93			currentMode = ModeLocal;
94			} else {
95			currentMode = ModeNone;
96			QMessageBox::warning(this, "infoscreen", "no operation mode set or mode given an invalid value");
97			exit(1);
98			}
99
100
101			if (currentMode == ModeSimpleWeb \|\| currentMode == ModeXml) {
102			url = settings->value("url").toString();
103			screenid = settings->value("screenid").toString();
104			if (url == "" \|\| screenid == "") {
105			QMessageBox::warning(this,"infoscreen","Could not find url or screenid in config file " + settings->fileName());
106
107			exit(1); //Normal qApp->exit() doesn't terminate the init sequence so use std C exit function
108			}
109			}
110
111			if (currentMode == ModeLocal) {
112			path = settings->value("path").toString();
113
114			if (path == "") {
115			QMessageBox::warning(this,"infoscreen","Could not find path in config file " + settings->fileName());
116			exit(1);
117			}
118			}
119			}
120
121	torben	537	void MainView::closeEvent ( QCloseEvent * event )
122			{
123			Q_UNUSED(event);
124			exit(0); //force application shutdown
125	torben	509	}
126
127	torben	532	void MainView::keyPressEvent ( QKeyEvent* event )
128			{
129	torben	533	int key = event->key();
130			if (key == ' ' \|\| key == Qt::Key_Return \|\| key == Qt::Key_Enter) {
131	torben	537	close();
132	torben	533	}
133	torben	532	}
134	torben	509
135			void MainView::onTimer()
136			{
137	torben	873	qDebug() << "onTimer()";
138	torben	512	screenManager.timerTick();
139	torben	524
140	torben	638	if (currentMode == ModeXml) {
141			readXml();
142			}
143	torben	527
144	torben	873	if (currentMode == ModeXml \|\| currentMode == ModeLocal) {
145			switchScreens();
146			}
147	torben	528	}
148	torben	527
149	torben	524
150	torben	638	void MainView::readLocalFiles()
151			{
152			QDir dir(path);
153			if (! dir.exists()) {
154			QMessageBox::warning(this,"infoscreen","Local Source directory not found: " + path);
155			exit(1);
156			}
157			QFileInfoList files = dir.entryInfoList(QDir::Files, QDir::Name); //only files, sort by name
158
159			for (int i=0; i<files.size(); ++i) {
160			QFileInfo file = files[i];
161			qDebug() << "Found" << file.fileName();
162
163			ScreenItem item;
164			item.url = file.filePath();
165			item.module = ModuleUnknown;
166
167			QString ext = file.suffix().toLower();
168	torben	708	if (ext == "avi" \|\| ext == "mpg" \|\| ext == "mpeg") {
169	torben	638	item.module = ModuleVideo;
170			item.runtime = 1;
171			}
172
173	torben	708	if (ext == "jpg" \|\| ext == "jpeg" \|\| ext == "png" ) {
174	torben	638	item.module = ModuleImage;
175			item.runtime = 10;
176			}
177
178	torben	867	if (ext == "svg") {
179			item.module = ModuleSvg;
180			item.runtime = 10;
181			}
182	torben	869
183			if (ext == "htm" \|\| ext == "html") {
184			item.module = ModuleWeb;
185			item.runtime = 10;
186			}
187	torben	867
188	torben	638	if (item.module != ModuleUnknown) { //no need to enqueue unknown modules
189			screenItems.push_back( item );
190			}
191
192			}
193
194			qDebug() << "Found " << screenItems.size() << " playable items";
195			}
196
197
198	torben	528	bool MainView::readXml()
199			{
200			const int TIMEOUT = 30601000; // 30 minutter
201			if ( lastXml.isNull() \|\| lastXml.elapsed() > TIMEOUT) {
202	torben	529
203	torben	527
204	torben	537	bool res = xmlHandler.readXml( xmlUrl );
205	torben	535
206	torben	528	lastXml = QTime::currentTime();
207
208			screenItems = xmlHandler.getScreenSet();
209
210			if ( currentItemIdx >= screenItems.size() )
211			currentItemIdx = screenItems.size()-1; //avoid overflow
212
213
214			return true;
215			} else {
216			return false;
217	torben	524	}
218	torben	509	}
219	torben	528
220			void MainView::switchScreens()
221			{
222	torben	537	if (video->isVisible() && video->isPlaying() ) {
223			return; //wait until current clip has finished
224			}
225	torben	528
226			if (lastScreenSwitch.isNull() \|\| lastScreenSwitch.elapsed() > (currentItem.runtime*1000)) {
227
228	torben	529	QTime now = QTime::currentTime();
229	torben	528	if (lastScreenSwitch.isNull())
230	torben	529	currentItemIdx = -1;
231
232			bool found = false;
233			int tries = 0;
234
235	torben	534	if (screenItems.size() > 0) { //only try if we have a any screens
236			while (found == false && tries <= screenItems.size()) { //find next with valid display time
237			tries++;
238			currentItemIdx = (currentItemIdx+1) % screenItems.size();
239			currentItem = screenItems.at(currentItemIdx);
240	torben	529
241	torben	638	if (currentItem.start.isValid() && currentItem.stop.isValid()) {
242			if (currentItem.start <= now && now <= currentItem.stop )
243			found = true;
244			} else { // if start or stop time was invalid - show them always
245	torben	534	found = true;
246	torben	638	}
247	torben	534	}
248	torben	529	}
249
250			if (found) {
251	torben	867	switch(currentItem.module) {
252			case ModuleImage:
253	torben	529	ensureVisible(picture);
254			picture->loadFromUrl( currentItem.url );
255	torben	867	break;
256			case ModuleWeb:
257	torben	537	ensureVisible(web);
258			web->load(currentItem.url);
259	torben	867	break;
260			case ModuleVideo:
261	torben	537	ensureVisible(video);
262			video->loadUrl(currentItem.url);
263	torben	867	break;
264			case ModuleSvg:
265			ensureVisible(svg);
266			svg->load(currentItem.url);
267			break;
268			default:
269	torben	638	// ModuleUnknown - what should we do??
270	torben	867	break;
271	torben	537	}
272	torben	529
273			} else {
274			qDebug() << "no screen";
275	torben	542	errorInfoScreen("Der er ingen information at vise");
276	torben	529	}
277	torben	528	lastScreenSwitch = QTime::currentTime();
278	torben	529
279	torben	528	}
280			}
281	torben	529
282	torben	542	void MainView::errorInfoScreen(QString msg)
283	torben	537	{
284			ensureVisible(web);
285			web->setHtml("<html>\
286			<body text='#505050' bgcolor='#000000'>\
287	torben	542	<table width='100%' height='100%'><tr><td align='center' valign='middel'><h1>" + msg+ "</h1></td></tr></table>\
288	torben	537	</body></html>");
289			}
290
291	torben	529	void MainView::ensureVisible(QWidget* widget)
292			{
293	torben	870	layout->setCurrentWidget(widget);
294	torben	529	}