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"
#include "screenmanager.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 (enableScreenManager) {
        screenManager = new ScreenManager(screenManagerOn, screenManagerOff);
    } else {
        qDebug() << "ScreenManager is disabled";
    }


    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);
    }

    enableScreenManager = settings->value("enablescreenmanager").toBool();
    if (enableScreenManager) {
        screenManagerOn = settings->value("screenmanager_on").toTime();
        screenManagerOff = settings->value("screenmanager_off").toTime();
    }

    xmlInterval = settings->value("xmlinterval", 30).toInt();
    xmlInterval = (xmlInterval * 60 * 1000); //convert to milliseconds


    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()
{
    if (enableScreenManager == true) {
        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()
{
    if ( lastXml.isNull() || lastXml.elapsed() > xmlInterval) {
        qDebug() << "Reading XML";


        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 {
            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	torben	875	#include "screenmanager.h"
20	torben	528
21
22	torben	870
23	torben	509	MainView::MainView(QWidget* parent)
24	torben	537	: QWidget(parent), timer(0)
25	torben	509	{
26	torben	638	loadSettings();
27	torben	535
28	torben	638	if ( currentMode == ModeXml) {
29			xmlUrl = url + "?screen_id=" + screenid;
30			qDebug() << "Starting XML mode";
31			qDebug() << "xmlUrl" << xmlUrl;
32			}
33	torben	535
34	torben	638	if (currentMode == ModeSimpleWeb){
35			qDebug() << "Starting plain browser mode";
36	torben	535	}
37
38	torben	638	if (currentMode == ModeLocal ) {
39			qDebug() << "Starting local mode";
40			qDebug() << "path" << path;
41	torben	535
42	torben	638	readLocalFiles();
43			}
44	torben	535
45	torben	534	this->resize(400,400);
46			this->setWindowState( Qt::WindowFullScreen );
47			this->grabKeyboard();
48	torben	516
49	torben	534	qApp->setOverrideCursor( QCursor( Qt::BlankCursor) );
50	torben	510
51	torben	534	render = new ClientSideRender(this);
52	torben	524
53	torben	534	web = new MyWebView(this);
54	torben	511
55	torben	534	picture = new PictureView(this);
56	torben	517
57	torben	534	video = new VideoView(this);
58	torben	517
59	torben	867	svg = new QSvgWidget(this);
60
61	torben	870	layout = new QStackedLayout();
62			layout->addWidget(web);
63			layout->addWidget(render);
64			layout->addWidget(picture);
65			layout->addWidget(video);
66			layout->addWidget(svg);
67	torben	534	layout->setContentsMargins(0,0,0,0);
68			setLayout(layout);
69	torben	510
70	torben	872	if (currentMode == ModeSimpleWeb) {
71			web->setVisible(true);
72			web->start(url,screenid);
73			}
74	torben	528
75	torben	875	if (enableScreenManager) {
76	torben	876	screenManager = new ScreenManager(screenManagerOn, screenManagerOff);
77	torben	875	} else {
78			qDebug() << "ScreenManager is disabled";
79			}
80	torben	873
81	torben	875
82	torben	873	qDebug() << "Starting timer...";
83			timer = new QTimer(this);
84			connect(timer, SIGNAL(timeout() ), this, SLOT(onTimer() ));
85			timer->start(100);
86	torben	537	}
87	torben	535
88	torben	638	void MainView::loadSettings()
89			{
90			settings = new QSettings("Caddi", "infoscreen");
91
92			qDebug() << "Loading settings" << settings->fileName();
93
94			QString mode = settings->value("mode").toString().toLower();
95			if (mode == "simpleweb") {
96			currentMode = ModeSimpleWeb;
97			} else if (mode == "xml") {
98			currentMode = ModeXml;
99			} else if (mode == "local") {
100			currentMode = ModeLocal;
101			} else {
102			currentMode = ModeNone;
103			QMessageBox::warning(this, "infoscreen", "no operation mode set or mode given an invalid value");
104			exit(1);
105			}
106
107	torben	876	enableScreenManager = settings->value("enablescreenmanager").toBool();
108			if (enableScreenManager) {
109			screenManagerOn = settings->value("screenmanager_on").toTime();
110			screenManagerOff = settings->value("screenmanager_off").toTime();
111			}
112	torben	638
113	torben	881	xmlInterval = settings->value("xmlinterval", 30).toInt();
114			xmlInterval = (xmlInterval * 60 * 1000); //convert to milliseconds
115	torben	875
116	torben	881
117	torben	638	if (currentMode == ModeSimpleWeb \|\| currentMode == ModeXml) {
118			url = settings->value("url").toString();
119			screenid = settings->value("screenid").toString();
120			if (url == "" \|\| screenid == "") {
121			QMessageBox::warning(this,"infoscreen","Could not find url or screenid in config file " + settings->fileName());
122
123			exit(1); //Normal qApp->exit() doesn't terminate the init sequence so use std C exit function
124			}
125			}
126
127			if (currentMode == ModeLocal) {
128			path = settings->value("path").toString();
129
130			if (path == "") {
131			QMessageBox::warning(this,"infoscreen","Could not find path in config file " + settings->fileName());
132			exit(1);
133			}
134			}
135			}
136
137	torben	537	void MainView::closeEvent ( QCloseEvent * event )
138			{
139			Q_UNUSED(event);
140			exit(0); //force application shutdown
141	torben	509	}
142
143	torben	532	void MainView::keyPressEvent ( QKeyEvent* event )
144			{
145	torben	533	int key = event->key();
146			if (key == ' ' \|\| key == Qt::Key_Return \|\| key == Qt::Key_Enter) {
147	torben	537	close();
148	torben	533	}
149	torben	532	}
150	torben	509
151			void MainView::onTimer()
152			{
153	torben	875	if (enableScreenManager == true) {
154			screenManager->timerTick();
155			}
156	torben	524
157	torben	638	if (currentMode == ModeXml) {
158			readXml();
159			}
160	torben	527
161	torben	873	if (currentMode == ModeXml \|\| currentMode == ModeLocal) {
162			switchScreens();
163			}
164	torben	528	}
165	torben	527
166	torben	524
167	torben	638	void MainView::readLocalFiles()
168			{
169			QDir dir(path);
170			if (! dir.exists()) {
171			QMessageBox::warning(this,"infoscreen","Local Source directory not found: " + path);
172			exit(1);
173			}
174			QFileInfoList files = dir.entryInfoList(QDir::Files, QDir::Name); //only files, sort by name
175
176			for (int i=0; i<files.size(); ++i) {
177			QFileInfo file = files[i];
178			qDebug() << "Found" << file.fileName();
179
180			ScreenItem item;
181			item.url = file.filePath();
182			item.module = ModuleUnknown;
183
184			QString ext = file.suffix().toLower();
185	torben	708	if (ext == "avi" \|\| ext == "mpg" \|\| ext == "mpeg") {
186	torben	638	item.module = ModuleVideo;
187			item.runtime = 1;
188			}
189
190	torben	708	if (ext == "jpg" \|\| ext == "jpeg" \|\| ext == "png" ) {
191	torben	638	item.module = ModuleImage;
192			item.runtime = 10;
193			}
194
195	torben	867	if (ext == "svg") {
196			item.module = ModuleSvg;
197			item.runtime = 10;
198			}
199	torben	869
200			if (ext == "htm" \|\| ext == "html") {
201			item.module = ModuleWeb;
202			item.runtime = 10;
203			}
204	torben	867
205	torben	638	if (item.module != ModuleUnknown) { //no need to enqueue unknown modules
206			screenItems.push_back( item );
207			}
208
209			}
210
211			qDebug() << "Found " << screenItems.size() << " playable items";
212			}
213
214
215	torben	528	bool MainView::readXml()
216			{
217	torben	881	if ( lastXml.isNull() \|\| lastXml.elapsed() > xmlInterval) {
218			qDebug() << "Reading XML";
219	torben	529
220	torben	527
221	torben	537	bool res = xmlHandler.readXml( xmlUrl );
222	torben	535
223	torben	528	lastXml = QTime::currentTime();
224
225			screenItems = xmlHandler.getScreenSet();
226
227			if ( currentItemIdx >= screenItems.size() )
228			currentItemIdx = screenItems.size()-1; //avoid overflow
229
230
231			return true;
232			} else {
233			return false;
234	torben	524	}
235	torben	509	}
236	torben	528
237			void MainView::switchScreens()
238			{
239	torben	537	if (video->isVisible() && video->isPlaying() ) {
240			return; //wait until current clip has finished
241			}
242	torben	528
243			if (lastScreenSwitch.isNull() \|\| lastScreenSwitch.elapsed() > (currentItem.runtime*1000)) {
244
245	torben	529	QTime now = QTime::currentTime();
246	torben	528	if (lastScreenSwitch.isNull())
247	torben	529	currentItemIdx = -1;
248
249			bool found = false;
250			int tries = 0;
251
252	torben	534	if (screenItems.size() > 0) { //only try if we have a any screens
253			while (found == false && tries <= screenItems.size()) { //find next with valid display time
254			tries++;
255			currentItemIdx = (currentItemIdx+1) % screenItems.size();
256			currentItem = screenItems.at(currentItemIdx);
257	torben	529
258	torben	638	if (currentItem.start.isValid() && currentItem.stop.isValid()) {
259			if (currentItem.start <= now && now <= currentItem.stop )
260			found = true;
261			} else { // if start or stop time was invalid - show them always
262	torben	534	found = true;
263	torben	638	}
264	torben	534	}
265	torben	529	}
266
267			if (found) {
268	torben	867	switch(currentItem.module) {
269			case ModuleImage:
270	torben	529	ensureVisible(picture);
271			picture->loadFromUrl( currentItem.url );
272	torben	867	break;
273			case ModuleWeb:
274	torben	537	ensureVisible(web);
275			web->load(currentItem.url);
276	torben	867	break;
277			case ModuleVideo:
278	torben	537	ensureVisible(video);
279			video->loadUrl(currentItem.url);
280	torben	867	break;
281			case ModuleSvg:
282			ensureVisible(svg);
283			svg->load(currentItem.url);
284			break;
285			default:
286	torben	638	// ModuleUnknown - what should we do??
287	torben	867	break;
288	torben	537	}
289	torben	529
290			} else {
291	torben	542	errorInfoScreen("Der er ingen information at vise");
292	torben	529	}
293	torben	528	lastScreenSwitch = QTime::currentTime();
294	torben	529
295	torben	528	}
296			}
297	torben	529
298	torben	542	void MainView::errorInfoScreen(QString msg)
299	torben	537	{
300			ensureVisible(web);
301			web->setHtml("<html>\
302			<body text='#505050' bgcolor='#000000'>\
303	torben	542	<table width='100%' height='100%'><tr><td align='center' valign='middel'><h1>" + msg+ "</h1></td></tr></table>\
304	torben	537	</body></html>");
305			}
306
307	torben	529	void MainView::ensureVisible(QWidget* widget)
308			{
309	torben	870	layout->setCurrentWidget(widget);
310	torben	529	}