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