Quelle QtInstanceFormattedSpinButton.cxx
Sprache: C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
// While QtInstanceEntry generally takes care of handling signals // for the spinbox's QLineEdit, this doesn't work when the value // is changed as a result of setting a new spinbox value (e.g. // by using the spinbox buttons), as the QLineEdit signals are blocked // then, see QAbstractSpinBoxPrivate::updateEdit in qtbase: // https://code.qt.io/cgit/qt/qtbase.git/tree/src/widgets/widgets/qabstractspinbox.cpp?id=ced47a590aeb85953a16eaf362887f14c2815c45#n1790 // Therefore, connect the QDoubleSpinBox::textChanged signal // to the slot that calls signal_changed() instead to ensure // it gets called nonetheless, and disconnect from the other signal.
disconnect(pSpinBox->lineEdit(), &QLineEdit::textChanged, this, nullptr);
connect(m_pSpinBox, &QDoubleSpinBox::textChanged, this,
&QtInstanceFormattedSpinButton::handleTextChanged);
// set functions to convert between value and formatted text
m_pSpinBox->setFormatValueFunction([this](double fValue) { return formatValue(fValue); });
m_pSpinBox->setParseTextFunction([this](const QString& rText, double* pResult) {
std::optional<double> aRet = GetFormatter().ParseText(toOUString(rText)); if (aRet.has_value())
{
*pResult = aRet.value(); return TRISTATE_TRUE;
}
OUString sText;
GetQtInstance().RunInMainThread([&] { // If the formatter is a TimeFormatter, its CursorChangedHdl would trigger // an update of the text via QDoubleSpinBox::setSingleStep that calls // QAbstractSpinBoxPrivate::updateEdit, which would replace text that is currently // being typed. // Detect that case and simply return the current text. if (m_bInSetSingleStep)
sText = toOUString(m_pSpinBox->text()); else
sText = GetFormatter().FormatValue(fValue);
});
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