forked from osmocom/wireshark
0b13ad6d95
As searching the list of protocols takes a noticeable amount of time and so would introduce significant lag while typing a string into the Search box, we instead debounce the call to updateSearchLineEdit(), so that it doesn't run until a set amount of time has elapsed with no updates to the Search field. If the user types something before the timer elapses, the timer restarts the countdown.
97 lines
3.2 KiB
C++
97 lines
3.2 KiB
C++
/* supported_protocols_dialog.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 "config.h"
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#include "supported_protocols_dialog.h"
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#include <ui_supported_protocols_dialog.h>
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#include <QElapsedTimer>
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#include "wireshark_application.h"
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SupportedProtocolsDialog::SupportedProtocolsDialog(QWidget *parent) :
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GeometryStateDialog(parent),
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ui(new Ui::SupportedProtocolsDialog),
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supported_protocols_model_(new SupportedProtocolsModel()),
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proxyModel_(new SupportedProtocolsProxyModel(this))
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{
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ui->setupUi(this);
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proxyModel_->setSourceModel(supported_protocols_model_);
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ui->supportedProtocolsTreeView->setModel(proxyModel_);
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//always sort by protocol/field name
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proxyModel_->sort(SupportedProtocolsModel::colName);
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if (parent)
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loadGeometry(parent->width() * 3 / 4, parent->height());
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setAttribute(Qt::WA_DeleteOnClose, true);
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setWindowTitle(wsApp->windowTitleString(tr("Supported Protocols")));
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// Some of our names are unreasonably long.
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int one_em = fontMetrics().height();
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ui->supportedProtocolsTreeView->setColumnWidth(SupportedProtocolsModel::colName, one_em * 15);
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ui->supportedProtocolsTreeView->setColumnWidth(SupportedProtocolsModel::colFilter, one_em * 10);
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ui->supportedProtocolsTreeView->setColumnWidth(SupportedProtocolsModel::colType, one_em * 12);
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ui->supportedProtocolsTreeView->setColumnWidth(SupportedProtocolsModel::colDescription, one_em * 30);
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QTimer::singleShot(0, this, SLOT(fillTree()));
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/* Create a single-shot timer for debouncing calls to
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* updateSearchLineEdit() */
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searchLineEditTimer = new QTimer(this);
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searchLineEditTimer->setSingleShot(true);
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connect(searchLineEditTimer, &QTimer::timeout, this, &SupportedProtocolsDialog::updateSearchLineEdit);
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}
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SupportedProtocolsDialog::~SupportedProtocolsDialog()
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{
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delete searchLineEditTimer;
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delete ui;
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delete supported_protocols_model_;
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delete proxyModel_;
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}
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void SupportedProtocolsDialog::updateStatistics()
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{
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QLocale locale = QLocale::system();
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QString hint = tr("%1 protocols, %2 fields.")
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.arg(locale.toString(supported_protocols_model_->rowCount()))
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.arg(locale.toString(supported_protocols_model_->fieldCount()));
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ui->hintLabel->setText(hint);
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}
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void SupportedProtocolsDialog::fillTree()
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{
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supported_protocols_model_->populate();
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updateStatistics();
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}
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void SupportedProtocolsDialog::updateSearchLineEdit()
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{
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proxyModel_->setFilter(searchLineEditText);
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}
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void SupportedProtocolsDialog::on_searchLineEdit_textChanged(const QString &search_re)
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{
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/* As filtering the list of protocols takes a noticeable amount
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* of time and so would introduce significant lag while typing a string
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* into the Search box, we instead debounce the call to
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* proxyModel_->setFilter(), so that it doesn't run until a set amount of
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* time has elapsed with no updates to the Search field.
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*
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* If the user types something before the timer elapses, the timer restarts
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* the countdown.
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*/
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searchLineEditText = search_re;
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searchLineEditTimer->start(200);
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}
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