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)
{

    settings = new QSettings("Caddi", "infoscreen");
    url = settings->value("url").toString();
    bool xmlMode = settings->value("xml").toBool();
    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
    }


    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 (xmlMode == true) {
        xmlUrl = url + "?screen_id=" + screenid;
        qDebug() << "Starting XML mode";
        qDebug() << "xmlUrl" << xmlUrl;

        QTimer* timer = new QTimer(this);
        connect(timer, SIGNAL(timeout() ), this, SLOT(onTimer() ));
        timer->start(100);
    } else {
        qDebug() << "Starting plain browser mode";
        web->setVisible(true);
        web->start(url,screenid);
    }


}

void MainView::keyPressEvent ( QKeyEvent* event )
{
    int key = event->key();
    if (key == ' ' || key == Qt::Key_Return || key == Qt::Key_Enter) {
        qApp->quit();
    }
}  

void MainView::onTimer()
{
    screenManager.timerTick();

    readXml();

    switchScreens();
}


bool MainView::readXml()
{
    const int TIMEOUT = 30*60*1000; // 30 minutter
    if ( lastXml.isNull() || lastXml.elapsed() > TIMEOUT) {


        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 (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 <= now && now <= currentItem.stop )
                    found = true;
            }
        }

        if (found) {

            if (currentItem.module == "info_image") {
                ensureVisible(picture);

                picture->loadFromUrl( currentItem.url );

            }


        } else {
            qDebug() << "no screen";
            hideAll();
        }
        lastScreenSwitch = QTime::currentTime();

    }
}

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	534	: QWidget(parent)
22	torben	509	{
23	torben	535
24			settings = new QSettings("Caddi", "infoscreen");
25			url = settings->value("url").toString();
26			bool xmlMode = settings->value("xml").toBool();
27			screenid = settings->value("screenid").toString();
28
29			if (url == "" \|\| screenid == "") {
30			QMessageBox::warning(this,"infoscreen","Could not find url or screenid in config file " + settings->fileName());
31
32			exit(1); //Normal qApp->exit() doesn't terminate the init sequence so use std C exit function
33			}
34
35
36
37	torben	534	this->resize(400,400);
38			this->setWindowState( Qt::WindowFullScreen );
39			this->grabKeyboard();
40	torben	516
41	torben	534	qApp->setOverrideCursor( QCursor( Qt::BlankCursor) );
42	torben	510
43	torben	534	render = new ClientSideRender(this);
44			render->setVisible( false );
45	torben	524
46	torben	534	web = new MyWebView(this);
47			web->setVisible( false);
48	torben	511
49	torben	534	picture = new PictureView(this);
50			picture->setVisible( false );
51	torben	517
52	torben	534	video = new VideoView(this);
53			video->setVisible(false);
54	torben	517
55	torben	534	QVBoxLayout* layout = new QVBoxLayout();
56			layout->addWidget(web,1);
57			layout->addWidget(render,1);
58			layout->addWidget(picture,1);
59			layout->addWidget(video,1);
60			layout->addStretch();
61			layout->setContentsMargins(0,0,0,0);
62			setLayout(layout);
63	torben	510
64	torben	528
65
66	torben	517
67	torben	535	if (xmlMode == true) {
68			xmlUrl = url + "?screen_id=" + screenid;
69			qDebug() << "Starting XML mode";
70			qDebug() << "xmlUrl" << xmlUrl;
71
72			QTimer* timer = new QTimer(this);
73			connect(timer, SIGNAL(timeout() ), this, SLOT(onTimer() ));
74			timer->start(100);
75			} else {
76			qDebug() << "Starting plain browser mode";
77			web->setVisible(true);
78			web->start(url,screenid);
79			}
80
81
82	torben	509	}
83
84	torben	532	void MainView::keyPressEvent ( QKeyEvent* event )
85			{
86	torben	533	int key = event->key();
87			if (key == ' ' \|\| key == Qt::Key_Return \|\| key == Qt::Key_Enter) {
88			qApp->quit();
89			}
90	torben	532	}
91	torben	509
92			void MainView::onTimer()
93			{
94	torben	512	screenManager.timerTick();
95	torben	524
96	torben	528	readXml();
97	torben	527
98	torben	528	switchScreens();
99			}
100	torben	527
101	torben	524
102	torben	528	bool MainView::readXml()
103			{
104			const int TIMEOUT = 30601000; // 30 minutter
105			if ( lastXml.isNull() \|\| lastXml.elapsed() > TIMEOUT) {
106	torben	529
107	torben	527
108	torben	535	xmlHandler.readXml( xmlUrl );
109
110	torben	528	lastXml = QTime::currentTime();
111
112			screenItems = xmlHandler.getScreenSet();
113
114			if ( currentItemIdx >= screenItems.size() )
115			currentItemIdx = screenItems.size()-1; //avoid overflow
116
117
118			return true;
119			} else {
120			return false;
121	torben	524	}
122	torben	509	}
123	torben	528
124			void MainView::switchScreens()
125			{
126
127			if (lastScreenSwitch.isNull() \|\| lastScreenSwitch.elapsed() > (currentItem.runtime*1000)) {
128
129	torben	529	QTime now = QTime::currentTime();
130	torben	528	if (lastScreenSwitch.isNull())
131	torben	529	currentItemIdx = -1;
132
133			bool found = false;
134			int tries = 0;
135
136	torben	534	if (screenItems.size() > 0) { //only try if we have a any screens
137			while (found == false && tries <= screenItems.size()) { //find next with valid display time
138			tries++;
139			currentItemIdx = (currentItemIdx+1) % screenItems.size();
140			currentItem = screenItems.at(currentItemIdx);
141	torben	529
142	torben	534	if (currentItem.start <= now && now <= currentItem.stop )
143			found = true;
144			}
145	torben	529	}
146
147			if (found) {
148
149			if (currentItem.module == "info_image") {
150			ensureVisible(picture);
151
152			picture->loadFromUrl( currentItem.url );
153
154			}
155
156
157			} else {
158			qDebug() << "no screen";
159			hideAll();
160			}
161	torben	528	lastScreenSwitch = QTime::currentTime();
162	torben	529
163	torben	528	}
164			}
165	torben	529
166			void MainView::ensureVisible(QWidget* widget)
167			{
168			if (! widget->isVisible()) {
169			hideAll();
170			widget->setVisible(true);
171			}
172			}
173
174			void MainView::hideAll()
175			{
176			render->setVisible( false );
177			web->setVisible( false);
178			picture->setVisible( false );
179			video->setVisible(false);
180			}