Runtime Error on 32bits...

[dcbasso]

I'm getting this error on rutime:

@
(InoveSATBEV:7109): GConf-WARNING **: Client failed to connect to the D-BUS daemon:
Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
GConf Error: No D-BUS daemon running

(InoveSATBEV:7109): GConf-WARNING **: Client failed to connect to the D-BUS daemon:
Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

** (InoveSATBEV:7109): WARNING **: gst_gconf_get_string: error: No D-BUS daemon running
@

The application don't close, still running, but some events install on the QWebView is not executed:
Appears to be a something with Webkit... I'm not sure!

The code that insert Qwebview events:
@
ui->webView->page()->mainFrame()->addToJavaScriptWindowObject("sender", this);
@

The JavaScript inside the SVG File loaded in "webview":
@
sender.clicked( 1 );
@

On 64bits, works everything fine.
What's the problem?

[dcbasso]

This prolem occours when I run with Root!

If I use the sudo ./MyApplication, this error appears to me:

@
WARNING: Phonon needs QCoreApplication::applicationName to be set to export audio output names through the DBUS interface
@

I don't use any kind od "audio"... not in my code!

[guziemic]

With high probability it is used by WebKit to handle audio or video tags in HTML5. If you set application name does this problem ends?

[dcbasso]

How to set "application name"?

[KA51O]

the "documentation":http://qt-project.org/doc/qt-4.8/qcoreapplication.html#applicationName-prop is your friend, use it.

[dcbasso]

Nothing change...
The error still there!

[KA51O]

What exactly did you change in your code and what is the resulting error. You have to tell and do a little more if you want people to help you.

[dcbasso]

KA510... I don't change anything between Compilations...
The problems is all showed above, the errors still the same!

I change the main.cpp, now is:

@
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
a.setApplicationName( "Balança Embarcada Veicular - Sistema Assistência Técnica" );
a.setApplicationVersion( "1.0" );
a.setOrganizationDomain( "none" );
a.setOrganizationName( "Inove Tecnologia" );
setlocale( QApplication::UnicodeUTF8, "C" );
MainWindow w;
w.show();
return a.exec();
}
@

[dcbasso]

The source code of screen that shows the error on 32bits:

UI:
@
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>WidgetSVG</class>
<widget class="QWidget" name="WidgetSVG">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>400</width>
<height>300</height>
</rect>
</property>
<property name="minimumSize">
<size>
<width>400</width>
<height>300</height>
</size>
</property>
<property name="windowTitle">
<string>Form</string>
</property>
<property name="styleSheet">
<string notr="true">background-color: rgb(145, 145, 145)</string>
</property>
<layout class="QHBoxLayout" name="horizontalLayout">
<property name="spacing">
<number>5</number>
</property>
<property name="margin">
<number>5</number>
</property>
<item>
<widget class="QWebView" name="webView">
<property name="autoFillBackground">
<bool>false</bool>
</property>
<property name="url">
<url>
<string>about:blank</string>
</url>
</property>
</widget>
</item>
<item>
<widget class="QGroupBox" name="groupBox">
<property name="font">
<font>
<weight>75</weight>
<bold>true</bold>
</font>
</property>
<property name="title">
<string>Detalhes:</string>
</property>
<property name="alignment">
<set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop</set>
</property>
<property name="flat">
<bool>true</bool>
</property>
<layout class="QVBoxLayout" name="verticalLayout_2">
<property name="spacing">
<number>3</number>
</property>
<property name="margin">
<number>5</number>
</property>
<item>
<widget class="QLabel" name="lbClasse">
<property name="text">
<string>Classe:</string>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="lbCodigo">
<property name="text">
<string>Código:</string>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="lbGrupo">
<property name="text">
<string>Grupo:</string>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="lbNumeroEixos">
<property name="text">
<string>Número de Eixos:</string>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="lbCargaMaxima">
<property name="text">
<string>Carga Máx.:</string>
</property>
</widget>
</item>
<item>
<spacer name="verticalSpacer">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>40</height>
</size>
</property>
</spacer>
</item>
<item>
<widget class="QPushButton" name="btSelecionar">
<property name="text">
<string>Selecionar Veículo</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>
</layout>
</widget>
<customwidgets>
<customwidget>
<class>QWebView</class>
<extends>QWidget</extends>
<header>QtWebKit/QWebView</header>
</customwidget>
</customwidgets>
<resources/>
<connections/>
</ui>
@

[dcbasso]

The source code of screen that shows the error on 32bits:

cpp
@
#include "widgetsvg.h"
#include "ui_widgetsvg.h"

#include <QWebFrame>
#include "QtCore/QDebug"

WidgetSVG::WidgetSVG(QWidget *parent) :
QWidget(parent),
ui(new Ui::WidgetSVG)
{
ui->setupUi(this);
ui->webView->setContextMenuPolicy(Qt::CustomContextMenu);
ui->webView->setEnabled(false);
}
WidgetSVG::WidgetSVG(Veiculo *newVeiculo, QWidget *parent):
QWidget(parent),
ui(new Ui::WidgetSVG)
{
ui->setupUi(this);
ui->webView->setContextMenuPolicy(Qt::CustomContextMenu);
ui->webView->setEnabled(false);
setVeiculo( newVeiculo );
installEventFilter(this);
}
WidgetSVG::~WidgetSVG()
{
delete ui;
}
void WidgetSVG::setVeiculo(Veiculo newVeiculo)
{
this->veiculo = newVeiculo;
ui->webView->setUrl( getVeiculo()->getFileUrl() );
loadScreenData();
}
Veiculo WidgetSVG::getVeiculo()
{
return this->veiculo;
}
void WidgetSVG::adjust()
{
QString url = ui->webView->url().toString().remove(0, 7);
renderer = new QSvgRenderer(url);
ui->webView->setZoomFactor( getFactor() );
}
void WidgetSVG::clicked(int codigo)
{
eixoSelecionado( codigo );
}
int WidgetSVG::getComponentWidth()
{
return ui->webView->size().width();
}
int WidgetSVG::getSVGWidth()
{
return renderer->defaultSize().width();
}
double WidgetSVG::getSVGRatio()
{
return (double) renderer->defaultSize().height() / renderer->defaultSize().width();
}
double WidgetSVG::getFactor()
{
return (double) getComponentWidth() / getSVGWidth();
}
void WidgetSVG::loadScreenData()
{
ui->lbClasse->setText( ui->lbClasse->text() + " " + getVeiculo()->getClasse() );
ui->lbCodigo->setText( ui->lbCodigo->text() + " " + QString::number(getVeiculo()->getCodigo()) );
ui->lbGrupo->setText( ui->lbGrupo->text() + " " + QString::number(getVeiculo()->getGrupo()) );
ui->lbNumeroEixos->setText( ui->lbNumeroEixos->text() + " " + QString::number(getVeiculo()->getNumeroEixos()) );
ui->lbCargaMaxima->setText( ui->lbCargaMaxima->text() + " " +QString::number(getVeiculo()->getPBT()) + " Ton." );
}
bool WidgetSVG::eventFilter(QObject *obj, QEvent *event)
{
bool retorno = false;
if (event->type() == QEvent::Resize)
{
adjust();
retorno = true;
} else {
ui->webView->page()->mainFrame()->addToJavaScriptWindowObject("sender", this);
retorno = QWidget::eventFilter(obj, event);
}
return retorno;
}

void WidgetSVG::on_btSelecionar_clicked()
{
emit veiculoSelecionado(getVeiculo());
emit selected();
this->setStyleSheet("background-color: rgb(138, 121, 35);");
ui->webView->setEnabled(true);
}
void WidgetSVG::setUnselected()
{
this->setStyleSheet("background-color: rgb(145, 145, 145);");
ui->webView->setEnabled(false);
}
@

[dcbasso]

I try this too:

@
#include <QtGui/QApplication>
#include "QtCore/QtDebug"
#include "mainwindow.h"

int main(int argc, char *argv[])
{
QString appName = "Balança Embarcada Veicular - Sistema Assistência Técnica";
QString appVersion = "1.0";
QString orgName = "Inove Tecnologia";
QString orgDomain = "http://inovetecnologia.com.br/";
QApplication::setApplicationName( appName );
QApplication::setApplicationVersion( appVersion );
QApplication::setOrganizationName( orgName );
QApplication::setOrganizationDomain( orgDomain );
QCoreApplication::setApplicationName( appName );
QCoreApplication::setApplicationVersion( appVersion );
QCoreApplication::setOrganizationDomain( orgDomain );
QCoreApplication::setOrganizationName( orgName );
QApplication a(argc, argv);
a.setApplicationName( appName );
a.setApplicationVersion( appVersion );
a.setOrganizationDomain( orgDomain );
a.setOrganizationName( orgName );
setlocale( QApplication::UnicodeUTF8, "C" );
MainWindow w;
w.show();
return a.exec();
}
@

Still got problems...
This problems could be from lib's?
The 64bits I using OpenSuse to Compile, And 32bits I'm using Ubuntu 32bits (VMware)!

[dcbasso]

Well, I install OpenSuse 32bits (with KDE)
Install QT, Compile on then and run...
The errors appears, but the application works as needed:

@
klauncher(26995) kdemain: No DBUS session-bus found. Check if you have started the DBUS server.
kdeinit4: Communication error with launcher. Exiting!
Balança Embarcada Veicular - Sistema Assistência Técnica(26948): No ksycoca4 database available!

Balança Embarcada Veicular - Sistema Assistência Técnica(26948)/kdecore (trader) KServiceTypeTrader::defaultOffers: KServiceTypeTrader: serviceType "PhononBackend" not found
@

Appears to be something with Ubuntu or maybe the gnome 32bits.