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SystemMonitor: Add a status bar to the main window

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To get us started, this shows the number of processes and threads in
the last captured state.
This commit is contained in:
Andreas Kling 2021-04-04 20:46:46 +02:00
parent 1e912fb5a1
commit 0f7443f010
Notes: sideshowbarker 2024-07-18 20:47:27 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/0f7443f0109
3 changed files with 15 additions and 3 deletions
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3
Userland/Applications/SystemMonitor/ProcessModel.cpp
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@ -429,6 +429,9 @@ void ProcessModel::update()
if (on_cpu_info_change)
on_cpu_info_change(m_cpus);
if (on_state_update)
on_state_update(all_processes->size(), m_threads.size());
// FIXME: This is a rather hackish way of invalidating indexes.
// It would be good if GUI::Model had a way to orchestrate removal/insertion while preserving indexes.
did_update(previous_tid_count == m_tids.size() ? GUI::Model::UpdateFlag::DontInvalidateIndexes : GUI::Model::UpdateFlag::InvalidateAllIndexes);

1
Userland/Applications/SystemMonitor/ProcessModel.h
View file

@ -94,6 +94,7 @@ public:
};
Function<void(const NonnullOwnPtrVector<CpuInfo>&)> on_cpu_info_change;
Function<void(int process_count, int thread_count)> on_state_update;
const NonnullOwnPtrVector<CpuInfo>& cpus() const { return m_cpus; }

14
Userland/Applications/SystemMonitor/main.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -51,6 +51,7 @@
#include <LibGUI/Painter.h>
#include <LibGUI/SortingProxyModel.h>
#include <LibGUI/Splitter.h>
#include <LibGUI/StatusBar.h>
#include <LibGUI/TabWidget.h>
#include <LibGUI/TableView.h>
#include <LibGUI/ToolBar.h>
@ -174,10 +175,17 @@ int main(int argc, char** argv)
auto& keeper = window->set_main_widget<GUI::Widget>();
keeper.set_layout<GUI::VerticalBoxLayout>();
keeper.set_fill_with_background_color(true);
keeper.layout()->set_margins({ 2, 2, 2, 2 });
keeper.layout()->set_margins({ 2, 2, 2, 0 });
auto& tabwidget = keeper.add<GUI::TabWidget>();
auto& statusbar = keeper.add<GUI::StatusBar>(2);
auto process_model = ProcessModel::create();
process_model->on_state_update = [&](int process_count, int thread_count) {
statusbar.set_text(0, String::formatted("Processes: {}", process_count));
statusbar.set_text(1, String::formatted("Threads: {}", thread_count));
};
auto process_container_splitter = GUI::VerticalSplitter::construct();
tabwidget.add_widget("Processes", process_container_splitter);
process_container_splitter->layout()->set_margins({ 4, 4, 4, 4 });
@ -210,7 +218,7 @@ int main(int argc, char** argv)
auto& process_table_view = process_table_container.add<GUI::TableView>();
process_table_view.set_column_headers_visible(true);
process_table_view.set_model(GUI::SortingProxyModel::create(ProcessModel::create()));
process_table_view.set_model(GUI::SortingProxyModel::create(process_model));
process_table_view.set_key_column_and_sort_order(ProcessModel::Column::CPU, GUI::SortOrder::Descending);
process_table_view.model()->update();