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	#include "MainView.h"
2	#include <QApplication>
3	#include <QPushButton>
4	#include <QLabel>
5	#include <QVBoxLayout>
6
7	#include <QTimer>
8	#include <QKeyEvent>
9	#include <QSettings>
10	#include <QMessageBox>
11
12	#include "MyWebView.h"
13	#include "clientsiderender.h"
14	#include "pictureview.h"
15	#include "videoview.h"
16
17	#include "httpwrapper.h"
18
19
20	MainView::MainView(QWidget* parent)
21	: QWidget(parent)
22	{
23
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	this->resize(400,400);
38	this->setWindowState( Qt::WindowFullScreen );
39	this->grabKeyboard();
40
41	qApp->setOverrideCursor( QCursor( Qt::BlankCursor) );
42
43	render = new ClientSideRender(this);
44	render->setVisible( false );
45
46	web = new MyWebView(this);
47	web->setVisible( false);
48
49	picture = new PictureView(this);
50	picture->setVisible( false );
51
52	video = new VideoView(this);
53	video->setVisible(false);
54
55	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
64
65
66
67	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	}
83
84	void MainView::keyPressEvent ( QKeyEvent* event )
85	{
86	int key = event->key();
87	if (key == ' ' \|\| key == Qt::Key_Return \|\| key == Qt::Key_Enter) {
88	qApp->quit();
89	}
90	}
91
92	void MainView::onTimer()
93	{
94	screenManager.timerTick();
95
96	readXml();
97
98	switchScreens();
99	}
100
101
102	bool MainView::readXml()
103	{
104	const int TIMEOUT = 30601000; // 30 minutter
105	if ( lastXml.isNull() \|\| lastXml.elapsed() > TIMEOUT) {
106
107
108	xmlHandler.readXml( xmlUrl );
109
110	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	}
122	}
123
124	void MainView::switchScreens()
125	{
126
127	if (lastScreenSwitch.isNull() \|\| lastScreenSwitch.elapsed() > (currentItem.runtime*1000)) {
128
129	QTime now = QTime::currentTime();
130	if (lastScreenSwitch.isNull())
131	currentItemIdx = -1;
132
133	bool found = false;
134	int tries = 0;
135
136	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
142	if (currentItem.start <= now && now <= currentItem.stop )
143	found = true;
144	}
145	}
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	lastScreenSwitch = QTime::currentTime();
162
163	}
164	}
165
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	}