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package View;
use strict;
use warnings;
use QtCore4;
use QtGui4;
use QtCore4::isa qw( Qt::GraphicsView );
use QtCore4::slots
updateImage => ['int', 'const QString &'];
use InformationWindow;
use ImageItem;
# [0]
sub NEW
{
my ($class, $offices, $images, $parent) = @_;
$class->SUPER::NEW( $parent );
this->{officeTable} = Qt::SqlRelationalTableModel(this);
this->{officeTable}->setTable($offices);
this->{officeTable}->setRelation(1, Qt::SqlRelation($images, 'locationid', 'file'));
this->{officeTable}->select();
# [0]
# [1]
this->{scene} = Qt::GraphicsScene(this);
this->{scene}->setSceneRect(0, 0, 465, 615);
this->setScene(this->{scene});
this->addItems();
my $logo = this->{scene}->addPixmap(Qt::Pixmap('logo.png'));
$logo->setPos(30, 515);
this->setMinimumSize(470, 620);
this->setMaximumSize(470, 620);
this->setWindowTitle(this->tr('Offices World Wide'));
}
# [1]
# [3]
sub addItems
{
my $officeCount = this->{officeTable}->rowCount();
my $imageOffset = 150;
my $leftMargin = 70;
my $topMargin = 40;
foreach my $i ( 0..$officeCount-1 ) {
my $image;
my $label;
my $record = this->{officeTable}->record($i);
my $id = $record->value('id')->toInt();
my $file = $record->value('file')->toString();
my $location = $record->value('location')->toString();
my $columnOffset = (sprintf( '%d', ($i / 3)) * 37);
my $x = (sprintf( '%d', ($i / 3)) * $imageOffset) + $leftMargin + $columnOffset;
my $y = (sprintf( '%d', ($i % 3)) * $imageOffset) + $topMargin;
$image = ImageItem($id, Qt::Pixmap($file));
$image->setData(0, Qt::Variant(Qt::Int($i)));
$image->setPos($x, $y);
this->{scene}->addItem($image);
# XXX Remove this once Issue 22 is resolved.
push @{this->{images}}, $image;
$label = this->{scene}->addText($location);
my $labelOffset = Qt::PointF((150 - $label->boundingRect()->width()) / 2, 120.0);
$label->setPos(Qt::PointF($x, $y) + $labelOffset);
}
}
# [3]
# [5]
sub mouseReleaseEvent
{
my ($event) = @_;
if (my $item = this->itemAt($event->pos())) {
if ($item->isa('ImageItem')) {
this->showInformation($item);
}
}
this->SUPER::mouseReleaseEvent($event);
}
# [5]
# [6]
sub showInformation
{
my ($image) = @_;
my $id = $image->id();
if ($id < 0 || $id >= this->{officeTable}->rowCount()) {
return;
}
my $window = this->findWindow($id);
if ($window && $window->isVisible()) {
$window->raise();
$window->activateWindow();
} elsif ($window && !$window->isVisible()) {
$window->show();
} else {
my $window = InformationWindow($id, this->{officeTable}, this);
this->connect($window, SIGNAL 'imageChanged(int, QString)',
this, SLOT 'updateImage(int, QString)');
$window->move(this->pos() + Qt::Point(20, 40));
$window->show();
push @{this->{informationWindows}}, $window;
}
}
# [6]
# [7]
sub updateImage
{
my ($id, $fileName) = @_;
my $items = this->{scene}->items();
foreach my $item (@{$items}) {
if ($item->isa('ImageItem')) {
my $image = $item;
if ($image->id() == $id){
$image->setPixmap(Qt::Pixmap($fileName));
$image->adjust();
last;
}
}
}
}
# [7]
# [8]
sub findWindow
{
my ($id) = @_;
foreach my $window ( @{this->{informationWindows}} ) {
if ( $window->id() == $id ) {
return $window;
}
}
return;
}
# [8]
1;
|
