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|
package Client;
use strict;
use warnings;
use QtCore4;
use QtGui4;
use QtNetwork4;
use QtCore4::isa qw( Qt::Dialog );
use QtCore4::slots
requestNewFortune => [],
readFortune => [],
displayError => ['QLocalSocket::LocalSocketError'],
enableGetFortuneButton => [];
sub hostLabel() {
return this->{hostLabel};
}
sub hostLineEdit() {
return this->{hostLineEdit};
}
sub statusLabel() {
return this->{statusLabel};
}
sub getFortuneButton() {
return this->{getFortuneButton};
}
sub quitButton() {
return this->{quitButton};
}
sub buttonBox() {
return this->{buttonBox};
}
sub socket() {
return this->{socket};
}
sub currentFortune() {
return this->{currentFortune};
}
sub blockSize() {
return this->{blockSize};
}
sub NEW {
my ($class, $parent) = @_;
$class->SUPER::NEW($parent);
this->{currentFortune} = '';
this->{hostLabel} = Qt::Label(this->tr('&Server name:'));
this->{hostLineEdit} = Qt::LineEdit('fortune');
hostLabel->setBuddy(hostLineEdit);
this->{statusLabel} = Qt::Label(this->tr('This examples requires that you run the ' .
'Fortune Server example as well.'));
this->{getFortuneButton} = Qt::PushButton(this->tr('Get Fortune'));
getFortuneButton->setDefault(1);
this->{quitButton} = Qt::PushButton(this->tr('Quit'));
this->{buttonBox} = Qt::DialogButtonBox();
buttonBox->addButton(getFortuneButton, Qt::DialogButtonBox::ActionRole());
buttonBox->addButton(quitButton, Qt::DialogButtonBox::RejectRole());
this->{socket} = Qt::LocalSocket(this);
this->connect(hostLineEdit, SIGNAL 'textChanged(QString)',
this, SLOT 'enableGetFortuneButton()');
this->connect(getFortuneButton, SIGNAL 'clicked()',
this, SLOT 'requestNewFortune()');
this->connect(quitButton, SIGNAL 'clicked()', this, SLOT 'close()');
this->connect(this->socket(), SIGNAL 'readyRead()', this, SLOT 'readFortune()');
this->connect(this->socket(), SIGNAL 'error(QLocalSocket::LocalSocketError)',
this, SLOT 'displayError(QLocalSocket::LocalSocketError)');
my $mainLayout = Qt::GridLayout();
$mainLayout->addWidget(hostLabel(), 0, 0);
$mainLayout->addWidget(hostLineEdit(), 0, 1);
$mainLayout->addWidget(statusLabel(), 2, 0, 1, 2);
$mainLayout->addWidget(buttonBox(), 3, 0, 1, 2);
this->setLayout($mainLayout);
setWindowTitle(this->tr('Fortune Client'));
hostLineEdit()->setFocus();
}
sub requestNewFortune
{
getFortuneButton->setEnabled(0);
this->{blockSize} = 0;
this->socket()->abort();
this->socket()->connectToServer(hostLineEdit->text());
}
sub readFortune
{
my $in = Qt::DataStream(this->socket());
$in->setVersion(Qt::DataStream::Qt_4_0());
if (this->{blockSize} == 0) {
my $uint16size = length( pack 'S', 0 );
if (this->socket()->bytesAvailable() < $uint16size) {
return;
}
no warnings qw( void );
$in >> Qt::Ushort(this->{blockSize});
use warnings;
}
if ($in->atEnd()) {
return;
}
my $nextFortune;
no warnings qw( void );
$in >> Qt::String($nextFortune);
use warnings;
if ($nextFortune eq currentFortune()) {
Qt::Timer::singleShot(0, this, SLOT 'requestNewFortune()');
return;
}
this->{currentFortune} = $nextFortune;
statusLabel->setText(currentFortune());
getFortuneButton()->setEnabled(1);
}
sub displayError
{
my ($socketError) = @_;
if ($socketError == Qt::LocalSocket::ServerNotFoundError()) {
Qt::MessageBox::information(this, this->tr('Fortune Client'),
this->tr('The host was not found. Please check the '.
'host name and port settings.'));
}
elsif ($socketError == Qt::LocalSocket::ConnectionRefusedError()) {
Qt::MessageBox::information(this, this->tr('Fortune Client'),
this->tr('The connection was refused by the peer. '.
'Make sure the fortune server is running, '.
'and check that the host name and port '.
'settings are correct.'));
}
elsif ($socketError == Qt::LocalSocket::PeerClosedError()) {
}
else {
Qt::MessageBox::information(this, this->tr('Fortune Client'),
sprintf this->tr('The following error occurred: %s.'),
this->socket()->errorString());
}
getFortuneButton->setEnabled(1);
}
sub enableGetFortuneButton
{
getFortuneButton->setEnabled(defined hostLineEdit->text());
}
1;
|
