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package MainWindow;
use strict;
use warnings;
use QtCore4;
use QtGui4;
use QtXmlPatterns4;
use QtCore4::isa qw( Qt::MainWindow );
use FileTree;
use Ui_MainWindow;
use QtCore4::slots
on_actionOpenDirectory_triggered => [],
on_actionAbout_triggered => [],
on_queryBox_currentIndexChanged => [];
use lib '../shared';
#use XmlSyntaxHighlighter;
sub ui() {
return this->{ui};
}
sub m_namePool() {
return this->{m_namePool};
}
sub m_fileTree() {
return this->{m_fileTree};
}
sub m_fileNode() {
return this->{m_fileNode};
}
# [0]
sub NEW {
my ($class) = @_;
$class->SUPER::NEW();
this->{m_namePool} = Qt::XmlNamePool();
this->{m_fileTree} = FileTree(m_namePool);
this->{ui} = Ui_MainWindow->setupUi(this);
#XmlSyntaxHighlighter(ui->fileTree->document());
# Set up the font.
{
my $font = Qt::Font('Courier',10);
$font->setFixedPitch(1);
ui->fileTree->setFont($font);
ui->queryEdit->setFont($font);
ui->output->setFont($font);
}
my $dir = Qt::LibraryInfo::location(Qt::LibraryInfo::ExamplesPath()) . '/xmlpatterns/filetree';
if (Qt::Dir($dir)->exists()) {
loadDirectory($dir);
}
else {
ui->fileTree->setPlainText(this->tr('Use the Open menu entry to select a directory.'));
}
my $queries = Qt::Dir(':/queries/', '*.xq')->entryList();
foreach my $query ( @{$queries} ) {
ui->queryBox->addItem($query);
}
}
# [0]
# [2]
sub on_queryBox_currentIndexChanged
{
my $queryFile = Qt::File(':/queries/' . ui->queryBox->currentText());
$queryFile->open(Qt::IODevice::ReadOnly());
ui->queryEdit->setPlainText($queryFile->readAll()->data());
evaluateResult();
}
# [2]
# [3]
sub evaluateResult
{
if (!defined ui->queryBox->currentText()) {
return;
}
my $query = Qt::XmlQuery(m_namePool);
$query->bindVariable('fileTree', Qt::XmlItem(m_fileNode));
$query->setQuery(Qt::Url('qrc:/queries/' . ui->queryBox->currentText()));
my $formatterOutput = Qt::ByteArray();
my $buffer = Qt::Buffer($formatterOutput);
$buffer->open(Qt::IODevice::WriteOnly());
my $formatter = Qt::XmlFormatter($query, $buffer);
$query->evaluateTo($formatter);
ui->output->setText($formatterOutput->constData());
}
# [3]
# [1]
sub on_actionOpenDirectory_triggered
{
my $directoryName = Qt::FileDialog::getExistingDirectory(this);
if (defined $directoryName) {
loadDirectory($directoryName);
}
}
# [1]
# [4]
# [5]
sub loadDirectory
{
my ($directory) = @_;
die "Directory $directory does not exist." unless Qt::Dir($directory)->exists();
this->{m_fileNode} = m_fileTree->nodeFor($directory);
# [5]
my $query = Qt::XmlQuery(m_namePool);
my $xmlItem = Qt::XmlItem(m_fileNode);
$query->bindVariable('fileTree', $xmlItem );
$query->setQuery(Qt::Url('qrc:/queries/wholeTree.xq'));
my $output = Qt::ByteArray();
my $buffer = Qt::Buffer($output);
$buffer->open(Qt::IODevice::WriteOnly());
my $formatter = Qt::XmlFormatter($query, $buffer);
$query->evaluateTo($formatter);
ui->treeInfo->setText(sprintf this->tr('Model of %s output as XML.'), $directory);
ui->fileTree->setText($output->constData());
evaluateResult();
# [6]
}
# [6]
# [4]
sub on_actionAbout_triggered
{
Qt::MessageBox::about(this, this->tr('About File Tree'),
this->tr('<p>Select <b>File->Open Directory</b> and ' .
'choose a directory. The directory is then ' .
'loaded into the model, and the model is ' .
'displayed on the left as XML.</p>' .
'<p>From the query menu on the right, select ' .
'a query. The query is displayed and then run ' .
'on the model. The results are displayed below ' .
'the query.</p>'));
}
1;
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