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 "webview.h"
#include "clientsiderender.h"
#include "pictureview.h"
#include "videoview.h"
#include "clockoverlay.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;
        qDebug() << "xmlInterval" << xmlInterval/(60*1000);
    }

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

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

        readLocalFiles();
    }

    this->resize(640,480);
    this->setWindowState( Qt::WindowFullScreen );
    this->grabKeyboard();

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

    render = new ClientSideRender(this);

    web = new WebView(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 (showClock == true) {
        clockOverlay = new ClockOverlay(this);
        clockOverlay->move(10,10);
        clockOverlay->resize(150,75);
    }

    
    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();
    }

    showClock = settings->value("showclock").toBool();

    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();
    }

    if (key == 'f' || key == 'F') {
        Qt::WindowStates current = this->windowState();
        if (current == Qt::WindowFullScreen) {
            this->setWindowState(Qt::WindowActive);
        } else {
            this->setWindowState(Qt::WindowFullScreen);
        }
    }

}  

void MainView::onTimer()
{
    if (enableScreenManager == true) {
        screenManager->timerTick();
    }

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

    if (currentMode == ModeXml || currentMode == ModeLocal) {
        switchScreens();
    }
    if (showClock == true) {
        clockOverlay->timerTick();
    }
}


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");
            currentItem = ScreenItem();
            currentItem.runtime = 60; //switch screens again in 1 minute
        }
        lastScreenSwitch = QTime::currentTime();

    }
}

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

void MainView::ensureVisible(QWidget* widget)
{
    layout->setCurrentWidget(widget);    
}
1	torben	899	#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	884	#include "webview.h"
14	torben	515	#include "clientsiderender.h"
15	torben	524	#include "pictureview.h"
16	torben	527	#include "videoview.h"
17	torben	883	#include "clockoverlay.h"
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	torben	882	qDebug() << "xmlInterval" << xmlInterval/(60*1000);
33	torben	638	}
34	torben	535
35	torben	638	if (currentMode == ModeSimpleWeb){
36			qDebug() << "Starting plain browser mode";
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	1210	this->resize(640,480);
47	torben	534	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	884	web = new WebView(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	902	if (showClock == true) {
72			clockOverlay = new ClockOverlay(this);
73			clockOverlay->move(10,10);
74			clockOverlay->resize(150,75);
75			}
76	torben	883
77
78
79	torben	872	if (currentMode == ModeSimpleWeb) {
80			web->setVisible(true);
81			web->start(url,screenid);
82			}
83	torben	528
84	torben	875	if (enableScreenManager) {
85	torben	876	screenManager = new ScreenManager(screenManagerOn, screenManagerOff);
86	torben	875	} else {
87			qDebug() << "ScreenManager is disabled";
88			}
89	torben	873
90	torben	875
91	torben	873	qDebug() << "Starting timer...";
92			timer = new QTimer(this);
93			connect(timer, SIGNAL(timeout() ), this, SLOT(onTimer() ));
94			timer->start(100);
95	torben	537	}
96	torben	535
97	torben	638	void MainView::loadSettings()
98			{
99			settings = new QSettings("Caddi", "infoscreen");
100
101			qDebug() << "Loading settings" << settings->fileName();
102
103			QString mode = settings->value("mode").toString().toLower();
104			if (mode == "simpleweb") {
105			currentMode = ModeSimpleWeb;
106			} else if (mode == "xml") {
107			currentMode = ModeXml;
108			} else if (mode == "local") {
109			currentMode = ModeLocal;
110			} else {
111			currentMode = ModeNone;
112			QMessageBox::warning(this, "infoscreen", "no operation mode set or mode given an invalid value");
113			exit(1);
114			}
115
116	torben	876	enableScreenManager = settings->value("enablescreenmanager").toBool();
117			if (enableScreenManager) {
118			screenManagerOn = settings->value("screenmanager_on").toTime();
119			screenManagerOff = settings->value("screenmanager_off").toTime();
120			}
121	torben	638
122	torben	902	showClock = settings->value("showclock").toBool();
123
124	torben	881	xmlInterval = settings->value("xmlinterval", 30).toInt();
125			xmlInterval = (xmlInterval * 60 * 1000); //convert to milliseconds
126	torben	875
127	torben	881
128	torben	638	if (currentMode == ModeSimpleWeb \|\| currentMode == ModeXml) {
129			url = settings->value("url").toString();
130			screenid = settings->value("screenid").toString();
131			if (url == "" \|\| screenid == "") {
132			QMessageBox::warning(this,"infoscreen","Could not find url or screenid in config file " + settings->fileName());
133
134			exit(1); //Normal qApp->exit() doesn't terminate the init sequence so use std C exit function
135			}
136			}
137
138			if (currentMode == ModeLocal) {
139			path = settings->value("path").toString();
140
141			if (path == "") {
142			QMessageBox::warning(this,"infoscreen","Could not find path in config file " + settings->fileName());
143			exit(1);
144			}
145			}
146			}
147
148	torben	537	void MainView::closeEvent ( QCloseEvent * event )
149			{
150			Q_UNUSED(event);
151			exit(0); //force application shutdown
152	torben	509	}
153
154	torben	532	void MainView::keyPressEvent ( QKeyEvent* event )
155			{
156	torben	533	int key = event->key();
157			if (key == ' ' \|\| key == Qt::Key_Return \|\| key == Qt::Key_Enter) {
158	torben	537	close();
159	torben	533	}
160	torben	1210
161			if (key == 'f' \|\| key == 'F') {
162			Qt::WindowStates current = this->windowState();
163			if (current == Qt::WindowFullScreen) {
164			this->setWindowState(Qt::WindowActive);
165			} else {
166			this->setWindowState(Qt::WindowFullScreen);
167			}
168			}
169
170	torben	532	}
171	torben	509
172			void MainView::onTimer()
173			{
174	torben	875	if (enableScreenManager == true) {
175			screenManager->timerTick();
176			}
177	torben	524
178	torben	638	if (currentMode == ModeXml) {
179			readXml();
180			}
181	torben	527
182	torben	873	if (currentMode == ModeXml \|\| currentMode == ModeLocal) {
183			switchScreens();
184			}
185	torben	902	if (showClock == true) {
186			clockOverlay->timerTick();
187			}
188	torben	528	}
189	torben	527
190	torben	524
191	torben	638	void MainView::readLocalFiles()
192			{
193			QDir dir(path);
194			if (! dir.exists()) {
195			QMessageBox::warning(this,"infoscreen","Local Source directory not found: " + path);
196			exit(1);
197			}
198			QFileInfoList files = dir.entryInfoList(QDir::Files, QDir::Name); //only files, sort by name
199
200			for (int i=0; i<files.size(); ++i) {
201			QFileInfo file = files[i];
202			qDebug() << "Found" << file.fileName();
203
204			ScreenItem item;
205			item.url = file.filePath();
206			item.module = ModuleUnknown;
207
208			QString ext = file.suffix().toLower();
209	torben	708	if (ext == "avi" \|\| ext == "mpg" \|\| ext == "mpeg") {
210	torben	638	item.module = ModuleVideo;
211			item.runtime = 1;
212			}
213
214	torben	708	if (ext == "jpg" \|\| ext == "jpeg" \|\| ext == "png" ) {
215	torben	638	item.module = ModuleImage;
216			item.runtime = 10;
217			}
218
219	torben	867	if (ext == "svg") {
220			item.module = ModuleSvg;
221			item.runtime = 10;
222			}
223	torben	869
224			if (ext == "htm" \|\| ext == "html") {
225			item.module = ModuleWeb;
226			item.runtime = 10;
227			}
228	torben	867
229	torben	638	if (item.module != ModuleUnknown) { //no need to enqueue unknown modules
230			screenItems.push_back( item );
231			}
232
233			}
234
235			qDebug() << "Found " << screenItems.size() << " playable items";
236			}
237
238
239	torben	528	bool MainView::readXml()
240			{
241	torben	881	if ( lastXml.isNull() \|\| lastXml.elapsed() > xmlInterval) {
242			qDebug() << "Reading XML";
243	torben	529
244	torben	527
245	torben	537	bool res = xmlHandler.readXml( xmlUrl );
246	torben	535
247	torben	528	lastXml = QTime::currentTime();
248
249			screenItems = xmlHandler.getScreenSet();
250
251			if ( currentItemIdx >= screenItems.size() )
252			currentItemIdx = screenItems.size()-1; //avoid overflow
253
254
255			return true;
256			} else {
257			return false;
258	torben	524	}
259	torben	509	}
260	torben	528
261			void MainView::switchScreens()
262			{
263	torben	537	if (video->isVisible() && video->isPlaying() ) {
264			return; //wait until current clip has finished
265			}
266	torben	528
267			if (lastScreenSwitch.isNull() \|\| lastScreenSwitch.elapsed() > (currentItem.runtime*1000)) {
268	torben	529	QTime now = QTime::currentTime();
269	torben	528	if (lastScreenSwitch.isNull())
270	torben	529	currentItemIdx = -1;
271
272			bool found = false;
273			int tries = 0;
274
275	torben	534	if (screenItems.size() > 0) { //only try if we have a any screens
276			while (found == false && tries <= screenItems.size()) { //find next with valid display time
277			tries++;
278			currentItemIdx = (currentItemIdx+1) % screenItems.size();
279			currentItem = screenItems.at(currentItemIdx);
280	torben	529
281	torben	638	if (currentItem.start.isValid() && currentItem.stop.isValid()) {
282			if (currentItem.start <= now && now <= currentItem.stop )
283			found = true;
284			} else { // if start or stop time was invalid - show them always
285	torben	534	found = true;
286	torben	638	}
287	torben	534	}
288	torben	529	}
289
290			if (found) {
291	torben	867	switch(currentItem.module) {
292			case ModuleImage:
293	torben	529	ensureVisible(picture);
294			picture->loadFromUrl( currentItem.url );
295	torben	867	break;
296			case ModuleWeb:
297	torben	537	ensureVisible(web);
298			web->load(currentItem.url);
299	torben	867	break;
300			case ModuleVideo:
301	torben	537	ensureVisible(video);
302			video->loadUrl(currentItem.url);
303	torben	867	break;
304			case ModuleSvg:
305			ensureVisible(svg);
306			svg->load(currentItem.url);
307			break;
308			default:
309	torben	638	// ModuleUnknown - what should we do??
310	torben	867	break;
311	torben	537	}
312	torben	529
313			} else {
314	torben	542	errorInfoScreen("Der er ingen information at vise");
315	torben	885	currentItem = ScreenItem();
316			currentItem.runtime = 60; //switch screens again in 1 minute
317	torben	529	}
318	torben	528	lastScreenSwitch = QTime::currentTime();
319	torben	529
320	torben	528	}
321			}
322	torben	529
323	torben	542	void MainView::errorInfoScreen(QString msg)
324	torben	537	{
325	torben	891	ensureVisible(web);
326			QString html("<html><body text='#505050' bgcolor='#000000'>");
327			html.append("<table width='100%' height='100%'><tr><td align='center' valign='middel'><h1>")
328			.append(msg)
329			.append("</h1></td></tr></table></body></html>");
330			web->setHtml(html);
331	torben	537	}
332
333	torben	529	void MainView::ensureVisible(QWidget* widget)
334			{
335	torben	870	layout->setCurrentWidget(widget);
336	torben	529	}