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|
package TextEdit;
use strict;
use warnings;
use QtCore4;
use QtGui4;
# [0]
use QtCore4::isa qw( Qt::TextEdit );
use QtCore4::slots
insertCompletion => ['const QString &'];
sub c() {
return this->{c};
}
# [0]
sub NEW
{
my ($class, $parent) = @_;
$class->SUPER::NEW($parent);
setPlainText(this->tr('This TextEdit provides autocompletions for words that have more than' .
' 3 characters. You can trigger autocompletion using ') .
Qt::KeySequence('Ctrl+E')->toString(Qt::KeySequence::NativeText()));
}
# [0]
# [2]
sub setCompleter
{
my ($completer) = @_;
if (this->{c}) {
Qt::Object::disconnect(c, 0, this, 0);
}
this->{c} = $completer;
if (!c) {
return;
}
c->setWidget(this);
c->setCompletionMode(Qt::Completer::PopupCompletion());
c->setCaseSensitivity(Qt::CaseInsensitive());
Qt::Object::connect(c, SIGNAL 'activated(QString)',
this, SLOT 'insertCompletion(QString)');
}
# [2]
# [3]
sub completer
{
return c();
}
# [3]
# [4]
sub insertCompletion
{
my ($completion) = @_;
if (c->widget() != this) {
return;
}
my $tc = textCursor();
$DB::single=1;
my $extra = length($completion) - length(c->completionPrefix());
$tc->movePosition(Qt::TextCursor::Left());
$tc->movePosition(Qt::TextCursor::EndOfWord());
$tc->insertText(substr $completion, -$extra);
setTextCursor($tc);
}
# [4]
# [5]
sub textUnderCursor
{
my $tc = textCursor();
$tc->select(Qt::TextCursor::WordUnderCursor());
return $tc->selectedText();
}
# [5]
# [6]
sub focusInEvent
{
my ($e) = @_;
if (c()) {
c->setWidget(this);
}
this->SUPER::focusInEvent($e);
}
# [6]
# [7]
sub keyPressEvent
{
my ($e) = @_;
if (c && c->popup()->isVisible()) {
# The following keys are forwarded by the completer to the widget
my $key = $e->key();
if ( $key == Qt::Key_Enter() ||
$key == Qt::Key_Return() ||
$key == Qt::Key_Escape() ||
$key == Qt::Key_Tab() ||
$key == Qt::Key_Backtab() ) {
$e->ignore();
return; # let the completer do default behavior
}
}
my $isShortcut = ((($e->modifiers() & Qt::ControlModifier()) == Qt::ControlModifier()) && $e->key() == Qt::Key_E()); # CTRL+E
if (!c || !$isShortcut) { # dont process the shortcut when we have a completer
this->SUPER::keyPressEvent($e);
}
# [7]
# [8]
my $ctrlOrShift = $e->modifiers() & (Qt::ControlModifier() | Qt::ShiftModifier());
if (!c || ($ctrlOrShift && !defined $e->text())) {
return;
}
my $eow = '~!@#$%^&*()_+{}|:"<>?,./;\'[]\\-='; # end of word
my $hasModifier = ($e->modifiers() != Qt::NoModifier()) && !$ctrlOrShift;
my $completionPrefix = textUnderCursor();
$completionPrefix = $completionPrefix ? $completionPrefix : '';
my $lastChar = substr $e->text(), -1;
if (!$isShortcut && ($hasModifier || !defined( $e->text() ) || length( $completionPrefix) < 3
|| $eow =~ m/$lastChar/)) {
c()->popup()->hide();
return;
}
my $ccompletionPrefix = c->completionPrefix;
$ccompletionPrefix = $ccompletionPrefix ? $ccompletionPrefix : '';
if ($completionPrefix ne $ccompletionPrefix) {
c->setCompletionPrefix($completionPrefix);
c->popup()->setCurrentIndex(c->completionModel()->index(0, 0));
}
my $cr = cursorRect();
$cr->setWidth(c->popup()->sizeHintForColumn(0)
+ c->popup()->verticalScrollBar()->sizeHint()->width());
c->complete($cr); # popup it up!
}
# [8]
1;
|
