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|
package MainWindow;
use strict;
use warnings;
use blib;
use PieView;
use QtCore4;
use QtGui4;
use QtCore4::isa qw( Qt::MainWindow );
use QtCore4::slots
openFile => ['const Qt::String'],
openFile => [],
saveFile => [];
sub NEW {
shift->SUPER::NEW();
my $fileMenu = Qt::Menu(this->tr('&File'), this);
my $openAction = $fileMenu->addAction(this->tr('&Open...'));
$openAction->setShortcut(Qt::KeySequence(this->tr('Ctrl+O')));
my $saveAction = $fileMenu->addAction(this->tr('&Save As...'));
$saveAction->setShortcut(Qt::KeySequence(this->tr('Ctrl+S')));
my $quitAction = $fileMenu->addAction(this->tr('E&xit'));
$quitAction->setShortcut(Qt::KeySequence(this->tr('Ctrl+Q')));
setupModel();
setupViews();
this->connect($openAction, SIGNAL 'triggered()', this, SLOT 'openFile()');
this->connect($saveAction, SIGNAL 'triggered()', this, SLOT 'saveFile()');
this->connect($quitAction, SIGNAL 'triggered()', Qt::qApp, SLOT 'quit()');
this->menuBar()->addMenu($fileMenu);
this->statusBar();
openFile('qtdata.cht');
this->setWindowTitle(this->tr('Chart'));
this->resize(870, 550);
}
sub setupModel {
my $model = Qt::StandardItemModel(8, 2, this);
this->{model} = $model;
$model->setHeaderData(0, Qt::Horizontal(), Qt::Variant(Qt::String(this->tr('Label'))));
$model->setHeaderData(1, Qt::Horizontal(), Qt::Variant(Qt::String(this->tr('Quantity'))));
}
sub setupViews {
my $splitter = Qt::Splitter();
my $table = Qt::TableView();
my $pieChart = PieView();
my $model = this->{model};
this->{pieChart} = $pieChart;
$splitter->addWidget($table);
$splitter->addWidget($pieChart);
$splitter->setStretchFactor(0, 0);
$splitter->setStretchFactor(1, 1);
$table->setModel($model);
$pieChart->setModel($model);
my $selectionModel = Qt::ItemSelectionModel($model);
this->{selectionModel} = $selectionModel;
$table->setSelectionModel($selectionModel);
$pieChart->setSelectionModel($selectionModel);
my $headerView = $table->horizontalHeader();
$headerView->setStretchLastSection(1);
this->setCentralWidget($splitter);
}
sub openFile {
my ($path) = @_;
my $fileName;
my $model = this->{model};
if (!$path) {
$fileName = Qt::FileDialog::getOpenFileName(this, this->tr('Choose a data file'),
'', '*.cht');
}
else {
$fileName = $path;
}
if ($fileName) {
my $file = Qt::File($fileName);
if ($file->open(Qt::File::ReadOnly() | Qt::File::Text())) {
my $stream = Qt::TextStream($file);
my $line;
$model->removeRows(0, $model->rowCount(Qt::ModelIndex()), Qt::ModelIndex());
my $row = 0;
do {
$line = $stream->readLine();
if ($line) {
$model->insertRows($row, 1, Qt::ModelIndex());
my @pieces = grep { $_ } split /,/, $line;
$model->setData($model->index($row, 0, Qt::ModelIndex()),
Qt::Variant(Qt::String($pieces[0])));
$model->setData($model->index($row, 1, Qt::ModelIndex()),
Qt::Variant(Qt::String($pieces[1])));
$model->setData($model->index($row, 0, Qt::ModelIndex()),
Qt::qVariantFromValue(Qt::Color(Qt::String($pieces[2]))), Qt::DecorationRole());
$row++;
}
} while ($line);
$file->close();
this->statusBar()->showMessage(this->tr("Loaded $fileName"), 2000);
}
}
}
sub saveFile {
my $model = this->{model};
my $fileName = Qt::FileDialog::getSaveFileName(this,
this->tr('Save file as'), '', '*.cht');
if ($fileName) {
my $file = Qt::File($fileName);
my $stream = Qt::TextStream($file);
if ($file->open(Qt::File::WriteOnly() | Qt::File::Text())) {
foreach my $row (0..$model->rowCount(Qt::ModelIndex())-1) {
my @pieces;
push @pieces, $model->data($model->index($row, 0, Qt::ModelIndex()),
Qt::DisplayRole())->toString();
push @pieces, $model->data($model->index($row, 1, Qt::ModelIndex()),
Qt::DisplayRole())->toString();
push @pieces, $model->data($model->index($row, 0, Qt::ModelIndex()),
Qt::DecorationRole())->toString();
{
no warnings qw(void);
$stream << join ( ',', @pieces ) . "\n";
}
}
}
$file->close();
this->statusBar()->showMessage(this->tr("Saved $fileName"), 2000);
}
}
1;
|
