projects/infoscreen/mainview.cpp

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

#include <QDir>
#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	2103	#include <QDir>
9	torben	510	#include <QTimer>
10	torben	533	#include <QKeyEvent>
11	torben	535	#include <QSettings>
12			#include <QMessageBox>
13	torben	510
14	torben	884	#include "webview.h"
15	torben	515	#include "clientsiderender.h"
16	torben	524	#include "pictureview.h"
17	torben	527	#include "videoview.h"
18	torben	883	#include "clockoverlay.h"
19	torben	528	#include "httpwrapper.h"
20	torben	875	#include "screenmanager.h"
21	torben	528
22
23	torben	870
24	torben	509	MainView::MainView(QWidget* parent)
25	torben	537	: QWidget(parent), timer(0)
26	torben	509	{
27	torben	638	loadSettings();
28	torben	535
29	torben	638	if ( currentMode == ModeXml) {
30			xmlUrl = url + "?screen_id=" + screenid;
31			qDebug() << "Starting XML mode";
32			qDebug() << "xmlUrl" << xmlUrl;
33	torben	882	qDebug() << "xmlInterval" << xmlInterval/(60*1000);
34	torben	638	}
35	torben	535
36	torben	638	if (currentMode == ModeSimpleWeb){
37			qDebug() << "Starting plain browser mode";
38	torben	535	}
39
40	torben	638	if (currentMode == ModeLocal ) {
41			qDebug() << "Starting local mode";
42			qDebug() << "path" << path;
43	torben	535
44	torben	638	readLocalFiles();
45			}
46	torben	535
47	torben	1210	this->resize(640,480);
48	torben	534	this->setWindowState( Qt::WindowFullScreen );
49			this->grabKeyboard();
50	torben	516
51	torben	534	qApp->setOverrideCursor( QCursor( Qt::BlankCursor) );
52	torben	510
53	torben	534	render = new ClientSideRender(this);
54	torben	524
55	torben	884	web = new WebView(this);
56	torben	511
57	torben	534	picture = new PictureView(this);
58	torben	517
59	torben	534	video = new VideoView(this);
60	torben	517
61	torben	867	svg = new QSvgWidget(this);
62
63	torben	870	layout = new QStackedLayout();
64			layout->addWidget(web);
65			layout->addWidget(render);
66			layout->addWidget(picture);
67			layout->addWidget(video);
68			layout->addWidget(svg);
69	torben	534	layout->setContentsMargins(0,0,0,0);
70			setLayout(layout);
71	torben	510
72	torben	902	if (showClock == true) {
73			clockOverlay = new ClockOverlay(this);
74			clockOverlay->move(10,10);
75			clockOverlay->resize(150,75);
76			}
77	torben	883
78
79
80	torben	872	if (currentMode == ModeSimpleWeb) {
81			web->setVisible(true);
82			web->start(url,screenid);
83			}
84	torben	528
85	torben	875	if (enableScreenManager) {
86	torben	876	screenManager = new ScreenManager(screenManagerOn, screenManagerOff);
87	torben	875	} else {
88			qDebug() << "ScreenManager is disabled";
89			}
90	torben	873
91	torben	875
92	torben	873	qDebug() << "Starting timer...";
93			timer = new QTimer(this);
94			connect(timer, SIGNAL(timeout() ), this, SLOT(onTimer() ));
95			timer->start(100);
96	torben	537	}
97	torben	535
98	torben	638	void MainView::loadSettings()
99			{
100			settings = new QSettings("Caddi", "infoscreen");
101
102			qDebug() << "Loading settings" << settings->fileName();
103
104			QString mode = settings->value("mode").toString().toLower();
105			if (mode == "simpleweb") {
106			currentMode = ModeSimpleWeb;
107			} else if (mode == "xml") {
108			currentMode = ModeXml;
109			} else if (mode == "local") {
110			currentMode = ModeLocal;
111			} else {
112			currentMode = ModeNone;
113			QMessageBox::warning(this, "infoscreen", "no operation mode set or mode given an invalid value");
114			exit(1);
115			}
116
117	torben	876	enableScreenManager = settings->value("enablescreenmanager").toBool();
118			if (enableScreenManager) {
119			screenManagerOn = settings->value("screenmanager_on").toTime();
120			screenManagerOff = settings->value("screenmanager_off").toTime();
121			}
122	torben	638
123	torben	902	showClock = settings->value("showclock").toBool();
124
125	torben	881	xmlInterval = settings->value("xmlinterval", 30).toInt();
126			xmlInterval = (xmlInterval * 60 * 1000); //convert to milliseconds
127	torben	875
128	torben	881
129	torben	638	if (currentMode == ModeSimpleWeb \|\| currentMode == ModeXml) {
130			url = settings->value("url").toString();
131			screenid = settings->value("screenid").toString();
132			if (url == "" \|\| screenid == "") {
133			QMessageBox::warning(this,"infoscreen","Could not find url or screenid in config file " + settings->fileName());
134
135			exit(1); //Normal qApp->exit() doesn't terminate the init sequence so use std C exit function
136			}
137			}
138
139			if (currentMode == ModeLocal) {
140			path = settings->value("path").toString();
141
142			if (path == "") {
143			QMessageBox::warning(this,"infoscreen","Could not find path in config file " + settings->fileName());
144			exit(1);
145			}
146			}
147			}
148
149	torben	537	void MainView::closeEvent ( QCloseEvent * event )
150			{
151			Q_UNUSED(event);
152			exit(0); //force application shutdown
153	torben	509	}
154
155	torben	532	void MainView::keyPressEvent ( QKeyEvent* event )
156			{
157	torben	533	int key = event->key();
158			if (key == ' ' \|\| key == Qt::Key_Return \|\| key == Qt::Key_Enter) {
159	torben	537	close();
160	torben	533	}
161	torben	1210
162			if (key == 'f' \|\| key == 'F') {
163			Qt::WindowStates current = this->windowState();
164			if (current == Qt::WindowFullScreen) {
165			this->setWindowState(Qt::WindowActive);
166			} else {
167			this->setWindowState(Qt::WindowFullScreen);
168			}
169			}
170
171	torben	532	}
172	torben	509
173			void MainView::onTimer()
174			{
175	torben	875	if (enableScreenManager == true) {
176			screenManager->timerTick();
177			}
178	torben	524
179	torben	638	if (currentMode == ModeXml) {
180			readXml();
181			}
182	torben	527
183	torben	873	if (currentMode == ModeXml \|\| currentMode == ModeLocal) {
184			switchScreens();
185			}
186	torben	902	if (showClock == true) {
187			clockOverlay->timerTick();
188			}
189	torben	528	}
190	torben	527
191	torben	524
192	torben	638	void MainView::readLocalFiles()
193			{
194			QDir dir(path);
195			if (! dir.exists()) {
196			QMessageBox::warning(this,"infoscreen","Local Source directory not found: " + path);
197			exit(1);
198			}
199			QFileInfoList files = dir.entryInfoList(QDir::Files, QDir::Name); //only files, sort by name
200
201			for (int i=0; i<files.size(); ++i) {
202			QFileInfo file = files[i];
203			qDebug() << "Found" << file.fileName();
204
205			ScreenItem item;
206			item.url = file.filePath();
207			item.module = ModuleUnknown;
208
209			QString ext = file.suffix().toLower();
210	torben	708	if (ext == "avi" \|\| ext == "mpg" \|\| ext == "mpeg") {
211	torben	638	item.module = ModuleVideo;
212			item.runtime = 1;
213			}
214
215	torben	708	if (ext == "jpg" \|\| ext == "jpeg" \|\| ext == "png" ) {
216	torben	638	item.module = ModuleImage;
217			item.runtime = 10;
218			}
219
220	torben	867	if (ext == "svg") {
221			item.module = ModuleSvg;
222			item.runtime = 10;
223			}
224	torben	869
225			if (ext == "htm" \|\| ext == "html") {
226			item.module = ModuleWeb;
227			item.runtime = 10;
228			}
229	torben	867
230	torben	638	if (item.module != ModuleUnknown) { //no need to enqueue unknown modules
231			screenItems.push_back( item );
232			}
233
234			}
235
236			qDebug() << "Found " << screenItems.size() << " playable items";
237			}
238
239
240	torben	528	bool MainView::readXml()
241			{
242	torben	881	if ( lastXml.isNull() \|\| lastXml.elapsed() > xmlInterval) {
243			qDebug() << "Reading XML";
244	torben	529
245	torben	527
246	torben	537	bool res = xmlHandler.readXml( xmlUrl );
247	torben	535
248	torben	528	lastXml = QTime::currentTime();
249
250			screenItems = xmlHandler.getScreenSet();
251
252			if ( currentItemIdx >= screenItems.size() )
253			currentItemIdx = screenItems.size()-1; //avoid overflow
254
255
256			return true;
257			} else {
258			return false;
259	torben	524	}
260	torben	509	}
261	torben	528
262			void MainView::switchScreens()
263			{
264	torben	537	if (video->isVisible() && video->isPlaying() ) {
265			return; //wait until current clip has finished
266			}
267	torben	528
268			if (lastScreenSwitch.isNull() \|\| lastScreenSwitch.elapsed() > (currentItem.runtime*1000)) {
269	torben	529	QTime now = QTime::currentTime();
270	torben	528	if (lastScreenSwitch.isNull())
271	torben	529	currentItemIdx = -1;
272
273			bool found = false;
274			int tries = 0;
275
276	torben	534	if (screenItems.size() > 0) { //only try if we have a any screens
277			while (found == false && tries <= screenItems.size()) { //find next with valid display time
278			tries++;
279			currentItemIdx = (currentItemIdx+1) % screenItems.size();
280			currentItem = screenItems.at(currentItemIdx);
281	torben	529
282	torben	638	if (currentItem.start.isValid() && currentItem.stop.isValid()) {
283			if (currentItem.start <= now && now <= currentItem.stop )
284			found = true;
285			} else { // if start or stop time was invalid - show them always
286	torben	534	found = true;
287	torben	638	}
288	torben	534	}
289	torben	529	}
290
291			if (found) {
292	torben	867	switch(currentItem.module) {
293			case ModuleImage:
294	torben	529	ensureVisible(picture);
295			picture->loadFromUrl( currentItem.url );
296	torben	867	break;
297			case ModuleWeb:
298	torben	537	ensureVisible(web);
299			web->load(currentItem.url);
300	torben	867	break;
301			case ModuleVideo:
302	torben	537	ensureVisible(video);
303			video->loadUrl(currentItem.url);
304	torben	867	break;
305			case ModuleSvg:
306			ensureVisible(svg);
307			svg->load(currentItem.url);
308			break;
309			default:
310	torben	638	// ModuleUnknown - what should we do??
311	torben	867	break;
312	torben	537	}
313	torben	529
314			} else {
315	torben	542	errorInfoScreen("Der er ingen information at vise");
316	torben	885	currentItem = ScreenItem();
317			currentItem.runtime = 60; //switch screens again in 1 minute
318	torben	529	}
319	torben	528	lastScreenSwitch = QTime::currentTime();
320	torben	529
321	torben	528	}
322			}
323	torben	529
324	torben	542	void MainView::errorInfoScreen(QString msg)
325	torben	537	{
326	torben	891	ensureVisible(web);
327			QString html("<html><body text='#505050' bgcolor='#000000'>");
328			html.append("<table width='100%' height='100%'><tr><td align='center' valign='middel'><h1>")
329			.append(msg)
330			.append("</h1></td></tr></table></body></html>");
331			web->setHtml(html);
332	torben	537	}
333
334	torben	529	void MainView::ensureVisible(QWidget* widget)
335			{
336	torben	870	layout->setCurrentWidget(widget);
337	torben	529	}