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package Window;
use strict;
use warnings;
use QtCore4;
use QtGui4;
#[0]
use QtCore4::isa qw( Qt::Widget );
use constant SvgTextFormat => Qt::TextFormat::UserObject() + 1;
use constant SvgData => 1;
use QtCore4::slots
insertTextObject => [];
#[0]
use SvgTextObject;
sub NEW
{
my ($class) = @_;
$class->SUPER::NEW();
this->setupGui();
this->setupTextObject();
this->setWindowTitle('Text Object Example');
}
#[1]
sub insertTextObject
{
my $fileName = this->{fileNameLineEdit}->text();
my $file = Qt::File($fileName);
if (!$file->open(Qt::IODevice::ReadOnly())) {
Qt::MessageBox::warning(this, this->tr('Error Opening File'),
sprintf this->tr('Could not open \'%s\''), $fileName);
}
my $svgData = $file->readAll();
#[1]
#[2]
my $svgCharFormat = Qt::TextCharFormat();
$svgCharFormat->setObjectType(SvgTextFormat);
my $renderer = Qt::SvgRenderer($svgData);
my $svgBufferImage = Qt::Image($renderer->defaultSize(), Qt::Image::Format_ARGB32());
my $painter = Qt::Painter($svgBufferImage);
$renderer->render($painter, Qt::RectF($svgBufferImage->rect()));
$svgCharFormat->setProperty(SvgData, Qt::qVariantFromValue($svgBufferImage));
my $cursor = this->{textEdit}->textCursor();
$cursor->insertText(Qt::Char::ObjectReplacementCharacter(), $svgCharFormat);
this->{textEdit}->setTextCursor($cursor);
}
#[2]
#[3]
sub setupTextObject
{
my $svgInterface = SvgTextObject();
this->{textEdit}->document()->documentLayout()->registerHandler(SvgTextFormat, $svgInterface);
}
#[3]
sub setupGui
{
this->{fileNameLabel} = Qt::Label(this->tr('Svg File Name:'));
this->{fileNameLineEdit} = Qt::LineEdit();
this->{insertTextObjectButton} = Qt::PushButton(this->tr('Insert Image'));
this->{fileNameLineEdit}->setText('./files/heart.svg');
this->connect(this->{insertTextObjectButton}, SIGNAL 'clicked()',
this, SLOT 'insertTextObject()');
my $bottomLayout = Qt::HBoxLayout();
$bottomLayout->addWidget(this->{fileNameLabel});
$bottomLayout->addWidget(this->{fileNameLineEdit});
$bottomLayout->addWidget(this->{insertTextObjectButton});
this->{textEdit} = Qt::TextEdit();
my $mainLayout = Qt::VBoxLayout();
$mainLayout->addWidget(this->{textEdit});
$mainLayout->addLayout($bottomLayout);
this->setLayout($mainLayout);
}
1;
|
