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";
        web->setVisible(true);
        web->start(url,screenid);
    }

    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 == ModeXml || currentMode == ModeLocal) {
        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()
{
    screenManager.timerTick();

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

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