projects/infoscreen/mainview.cpp

#include "MainView.h"
#include <QApplication>
#include <QPushButton>
#include <QLabel>
#include <QVBoxLayout>

#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);
    render->setVisible( false );

    web = new MyWebView(this);
    web->setVisible( false);

    picture = new PictureView(this);
    picture->setVisible( false );

    video = new VideoView(this);
    video->setVisible(false);

    QVBoxLayout* layout = new QVBoxLayout();
    layout->addWidget(web,1);
    layout->addWidget(render,1);
    layout->addWidget(picture,1);
    layout->addWidget(video,1);
    layout->addStretch();
    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") {
            item.module = ModuleVideo;
            item.runtime = 1;
        }

        if (ext == "jpg" || ext == "jpeg") {
            item.module = ModuleImage;
            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) {

            if (currentItem.module == ModuleImage) {
                ensureVisible(picture);

                picture->loadFromUrl( currentItem.url );

            } else if (currentItem.module == ModuleWeb) {
                ensureVisible(web);
                web->load(currentItem.url);
            } else if (currentItem.module == ModuleVideo) {
                ensureVisible(video);
                video->loadUrl(currentItem.url);
            } else {
                // ModuleUnknown - what should we do??
            }

        } 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)
{
    if (! widget->isVisible()) {
        hideAll();
        widget->setVisible(true);
    }
}

void MainView::hideAll()
{
    render->setVisible( false );
    web->setVisible( false);
    picture->setVisible( false );
    video->setVisible(false);
}
1	torben	509	#include "MainView.h"
2	torben	512	#include <QApplication>
3	torben	510	#include <QPushButton>
4	torben	512	#include <QLabel>
5	torben	510	#include <QVBoxLayout>
6	torben	509
7	torben	510	#include <QTimer>
8	torben	533	#include <QKeyEvent>
9	torben	535	#include <QSettings>
10			#include <QMessageBox>
11	torben	510
12	torben	512	#include "MyWebView.h"
13	torben	515	#include "clientsiderender.h"
14	torben	524	#include "pictureview.h"
15	torben	527	#include "videoview.h"
16	torben	511
17	torben	528	#include "httpwrapper.h"
18
19
20	torben	509	MainView::MainView(QWidget* parent)
21	torben	537	: QWidget(parent), timer(0)
22	torben	509	{
23	torben	638	loadSettings();
24	torben	535
25	torben	638	if ( currentMode == ModeXml) {
26			xmlUrl = url + "?screen_id=" + screenid;
27			qDebug() << "Starting XML mode";
28			qDebug() << "xmlUrl" << xmlUrl;
29			}
30	torben	535
31	torben	638	if (currentMode == ModeSimpleWeb){
32			qDebug() << "Starting plain browser mode";
33			web->setVisible(true);
34			web->start(url,screenid);
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			render->setVisible( false );
52	torben	524
53	torben	534	web = new MyWebView(this);
54			web->setVisible( false);
55	torben	511
56	torben	534	picture = new PictureView(this);
57			picture->setVisible( false );
58	torben	517
59	torben	534	video = new VideoView(this);
60			video->setVisible(false);
61	torben	517
62	torben	534	QVBoxLayout* layout = new QVBoxLayout();
63			layout->addWidget(web,1);
64			layout->addWidget(render,1);
65			layout->addWidget(picture,1);
66			layout->addWidget(video,1);
67			layout->addStretch();
68			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			if (ext == "avi") {
165			item.module = ModuleVideo;
166			item.runtime = 1;
167			}
168
169			if (ext == "jpg" \|\| ext == "jpeg") {
170			item.module = ModuleImage;
171			item.runtime = 10;
172			}
173
174			if (item.module != ModuleUnknown) { //no need to enqueue unknown modules
175			screenItems.push_back( item );
176			}
177
178			}
179
180			qDebug() << "Found " << screenItems.size() << " playable items";
181			}
182
183
184	torben	528	bool MainView::readXml()
185			{
186			const int TIMEOUT = 30601000; // 30 minutter
187			if ( lastXml.isNull() \|\| lastXml.elapsed() > TIMEOUT) {
188	torben	529
189	torben	527
190	torben	537	bool res = xmlHandler.readXml( xmlUrl );
191	torben	535
192	torben	528	lastXml = QTime::currentTime();
193
194			screenItems = xmlHandler.getScreenSet();
195
196			if ( currentItemIdx >= screenItems.size() )
197			currentItemIdx = screenItems.size()-1; //avoid overflow
198
199
200			return true;
201			} else {
202			return false;
203	torben	524	}
204	torben	509	}
205	torben	528
206			void MainView::switchScreens()
207			{
208	torben	537	if (video->isVisible() && video->isPlaying() ) {
209			return; //wait until current clip has finished
210			}
211	torben	528
212			if (lastScreenSwitch.isNull() \|\| lastScreenSwitch.elapsed() > (currentItem.runtime*1000)) {
213
214	torben	529	QTime now = QTime::currentTime();
215	torben	528	if (lastScreenSwitch.isNull())
216	torben	529	currentItemIdx = -1;
217
218			bool found = false;
219			int tries = 0;
220
221	torben	534	if (screenItems.size() > 0) { //only try if we have a any screens
222			while (found == false && tries <= screenItems.size()) { //find next with valid display time
223			tries++;
224			currentItemIdx = (currentItemIdx+1) % screenItems.size();
225			currentItem = screenItems.at(currentItemIdx);
226	torben	529
227	torben	638	if (currentItem.start.isValid() && currentItem.stop.isValid()) {
228			if (currentItem.start <= now && now <= currentItem.stop )
229			found = true;
230			} else { // if start or stop time was invalid - show them always
231	torben	534	found = true;
232	torben	638	}
233	torben	534	}
234	torben	529	}
235
236			if (found) {
237
238	torben	638	if (currentItem.module == ModuleImage) {
239	torben	529	ensureVisible(picture);
240
241			picture->loadFromUrl( currentItem.url );
242
243	torben	638	} else if (currentItem.module == ModuleWeb) {
244	torben	537	ensureVisible(web);
245			web->load(currentItem.url);
246	torben	638	} else if (currentItem.module == ModuleVideo) {
247	torben	537	ensureVisible(video);
248			video->loadUrl(currentItem.url);
249	torben	543	} else {
250	torben	638	// ModuleUnknown - what should we do??
251	torben	537	}
252	torben	529
253			} else {
254			qDebug() << "no screen";
255	torben	542	errorInfoScreen("Der er ingen information at vise");
256	torben	529	}
257	torben	528	lastScreenSwitch = QTime::currentTime();
258	torben	529
259	torben	528	}
260			}
261	torben	529
262	torben	542	void MainView::errorInfoScreen(QString msg)
263	torben	537	{
264			ensureVisible(web);
265			web->setHtml("<html>\
266			<body text='#505050' bgcolor='#000000'>\
267	torben	542	<table width='100%' height='100%'><tr><td align='center' valign='middel'><h1>" + msg+ "</h1></td></tr></table>\
268	torben	537	</body></html>");
269			}
270
271	torben	529	void MainView::ensureVisible(QWidget* widget)
272			{
273			if (! widget->isVisible()) {
274			hideAll();
275			widget->setVisible(true);
276			}
277			}
278
279			void MainView::hideAll()
280			{
281			render->setVisible( false );
282			web->setVisible( false);
283			picture->setVisible( false );
284			video->setVisible(false);
285			}