182 lines
4.9 KiB
C++
182 lines
4.9 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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <ui/qt/apply_line_edit.h>
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#include <epan/prefs.h>
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#include <ui/qt/color_utils.h>
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#include <QRegExp>
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#include <QRegExpValidator>
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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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applyButton(0)
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{
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emptyAllowed_ = false;
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regex_ = QString();
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applyButton = new StockIconToolButton(parent, "x-filter-apply");
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applyButton->setCursor(Qt::ArrowCursor);
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applyButton->setEnabled(false);
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applyButton->setToolTip(tr("Apply changes"));
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applyButton->setIconSize(QSize(24, 14));
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applyButton->setMaximumWidth(30);
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applyButton->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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applyButton->setAttribute(Qt::WA_MacSmallSize, true);
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#endif
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setPlaceholderText(linePlaceholderText);
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connect(this, SIGNAL(textEdited(const QString&)), this, SLOT(onTextEdited(const QString&)));
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connect(this, SIGNAL(textChanged(const QString&)), this, SLOT(onTextChanged(const QString&)));
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connect(this, SIGNAL(returnPressed()), this, SLOT(onSubmitContent()));
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connect(applyButton, SIGNAL(clicked()), this, SLOT(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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QRegExp rx ( regex_ );
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QRegExpValidator 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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applyButton->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(applyButton->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 = applyButton->sizeHint();
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applyButton->move((contentsRect().right() + pos().x()) - ( frameWidth + apsz.width() ) - 2,
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contentsRect().top() + pos().y());
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applyButton->setMinimumHeight(height());
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applyButton->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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applyButton->setEnabled(false);
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emit textApplied();
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}
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/*
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* Editor modelines
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*
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* Local Variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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