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/* apply_lineedit.cpp
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0+*/
#include <ui/qt/widgets/apply_line_edit.h>
#include <epan/prefs.h>
#include <ui/qt/utils/color_utils.h>
#include <QRegExp>
#include <QRegExpValidator>
#include <QStyle>
ApplyLineEdit::ApplyLineEdit(QString linePlaceholderText, QWidget * parent)
: QLineEdit(parent),
applyButton(0)
{
emptyAllowed_ = false;
regex_ = QString();
applyButton = new StockIconToolButton(parent, "x-filter-apply");
applyButton->setCursor(Qt::ArrowCursor);
applyButton->setEnabled(false);
applyButton->setToolTip(tr("Apply changes"));
applyButton->setIconSize(QSize(24, 14));
applyButton->setMaximumWidth(30);
applyButton->setStyleSheet(
"QToolButton {"
" border: none;"
" background: transparent;" // Disables platform style on Windows.
" padding: 0 0 0 0;"
"}"
);
#ifdef Q_OS_MAC
setAttribute(Qt::WA_MacSmallSize, true);
applyButton->setAttribute(Qt::WA_MacSmallSize, true);
#endif
setPlaceholderText(linePlaceholderText);
connect(this, SIGNAL(textEdited(const QString&)), this, SLOT(onTextEdited(const QString&)));
connect(this, SIGNAL(textChanged(const QString&)), this, SLOT(onTextChanged(const QString&)));
connect(this, SIGNAL(returnPressed()), this, SLOT(onSubmitContent()));
connect(applyButton, SIGNAL(clicked()), this, SLOT(onSubmitContent()));
handleValidation(QString(linePlaceholderText));
setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
}
ApplyLineEdit::~ApplyLineEdit() {}
void ApplyLineEdit::setRegEx(QString regex)
{
regex_ = regex;
}
QString ApplyLineEdit::regex()
{
return regex_;
}
void ApplyLineEdit::setEmptyAllowed(bool emptyAllowed)
{
emptyAllowed_ = emptyAllowed;
}
bool ApplyLineEdit::emptyAllowed()
{
return emptyAllowed_;
}
bool ApplyLineEdit::isValidText(QString & text, bool ignoreEmptyCheck)
{
if ( text.length() == 0 )
{
if ( ! ignoreEmptyCheck && ! emptyAllowed_ )
return false;
else if ( ignoreEmptyCheck )
return true;
}
if ( regex_.length() > 0 )
{
QRegExp rx ( regex_ );
QRegExpValidator v(rx, 0);
int pos = 0;
if ( ! rx.isValid() || v.validate(text, pos) != QValidator::Acceptable )
return false;
}
return true;
}
void ApplyLineEdit::onTextEdited(const QString & text)
{
QString newText = QString(text);
applyButton->setEnabled(isValidText(newText));
handleValidation(newText);
}
void ApplyLineEdit::onTextChanged(const QString & text)
{
handleValidation(QString(text));
}
void ApplyLineEdit::handleValidation(QString newText)
{
int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
QString style_sheet = QString(
"ApplyLineEdit {"
" padding-left: %1px;"
" padding-right: %2px;"
" background-color: %3;"
"}"
)
.arg(frameWidth + 1)
.arg(applyButton->sizeHint().width() + frameWidth)
.arg(isValidText(newText, true) ? QString("") : ColorUtils::fromColorT(prefs.gui_text_invalid).name());
setStyleSheet(style_sheet);
}
void ApplyLineEdit::resizeEvent(QResizeEvent *)
{
int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
QSize apsz = applyButton->sizeHint();
applyButton->move((contentsRect().right() + pos().x()) - ( frameWidth + apsz.width() ) - 2,
contentsRect().top() + pos().y());
applyButton->setMinimumHeight(height());
applyButton->setMaximumHeight(height());
}
void ApplyLineEdit::onSubmitContent()
{
QString data = text();
if ( ! isValidText(data) )
return;
/* Freeze apply button to signal the text has been sent. Will be unfreezed, if the text in the textbox changes again */
applyButton->setEnabled(false);
emit textApplied();
}
/*
* Editor modelines
*
* Local Variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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