ladybird/Applications/SystemMonitor/ProcessTableView.cpp

/*
 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "ProcessTableView.h"
#include "ProcessModel.h"
#include <LibGUI/GSortingProxyModel.h>
#include <stdio.h>

ProcessTableView::ProcessTableView(GWidget* parent)
    : GTableView(parent)
{
    set_size_columns_to_fit_content(true);
    set_model(GSortingProxyModel::create(ProcessModel::create()));
    model()->set_key_column_and_sort_order(ProcessModel::Column::CPU, GSortOrder::Descending);
    refresh();

    on_selection = [this](auto&) {
        if (on_process_selected)
            on_process_selected(selected_pid());
    };
}

ProcessTableView::~ProcessTableView()
{
}

void ProcessTableView::refresh()
{
    model()->update();
}

pid_t ProcessTableView::selected_pid() const
{
    if (selection().is_empty())
        return -1;
    return model()->data(model()->index(selection().first().row(), ProcessModel::Column::PID), GModel::Role::Sort).as_i32();
}