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);
    }

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