mirror of
https://github.com/SerenityOS/serenity
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7772637d03
Previously, some non-default process statistics were displayed in a long human readable format in the processes tab, which could negatively affect readability. A shorter format is now used in the processes tab, while the process properties window retains the longer format.
114 lines
3.4 KiB
C++
114 lines
3.4 KiB
C++
/*
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "ProcessStateWidget.h"
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#include "ProcessModel.h"
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#include <LibCore/Timer.h>
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#include <LibGUI/BoxLayout.h>
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#include <LibGUI/HeaderView.h>
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#include <LibGUI/Painter.h>
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#include <LibGUI/TableView.h>
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#include <LibGUI/Widget.h>
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#include <LibGfx/Font/FontDatabase.h>
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#include <LibGfx/Palette.h>
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REGISTER_WIDGET(SystemMonitor, ProcessStateWidget)
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namespace SystemMonitor {
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class ProcessStateModel final
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: public GUI::Model
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, public GUI::ModelClient {
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public:
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explicit ProcessStateModel(ProcessModel& target, pid_t pid)
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: m_target(target)
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, m_pid(pid)
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{
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m_target.register_client(*this);
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refresh();
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}
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virtual ~ProcessStateModel() override
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{
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m_target.unregister_client(*this);
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}
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virtual int row_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override { return m_target.column_count({}); }
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virtual int column_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override { return 2; }
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virtual GUI::Variant data(const GUI::ModelIndex& index, GUI::ModelRole role = GUI::ModelRole::Display) const override
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{
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if (role == GUI::ModelRole::Display) {
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if (index.column() == 0) {
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if (index.row() == ProcessModel::Column::Icon) {
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// NOTE: The icon column is nameless in ProcessModel, but we want it to have a name here.
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return "Icon";
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}
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return m_target.column_name(index.row()).release_value_but_fixme_should_propagate_errors();
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}
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return m_target_index.sibling_at_column(index.row()).data(ProcessModel::DISPLAY_VERBOSE);
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}
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if (role == GUI::ModelRole::Font) {
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if (index.column() == 0) {
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return Gfx::FontDatabase::default_font().bold_variant();
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}
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}
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return {};
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}
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virtual void model_did_update([[maybe_unused]] unsigned flags) override
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{
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refresh();
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}
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void refresh()
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{
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m_target_index = {};
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for (int row = 0; row < m_target.row_count({}); ++row) {
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auto index = m_target.index(row, ProcessModel::Column::PID);
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if (index.data().to_i32() == m_pid) {
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m_target_index = index;
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break;
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}
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}
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did_update(GUI::Model::UpdateFlag::DontInvalidateIndices);
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}
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void set_pid(pid_t pid)
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{
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m_pid = pid;
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refresh();
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}
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pid_t pid() const { return m_pid; }
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private:
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ProcessModel& m_target;
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GUI::ModelIndex m_target_index;
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pid_t m_pid { -1 };
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};
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ErrorOr<NonnullRefPtr<ProcessStateWidget>> ProcessStateWidget::try_create()
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{
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auto widget = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) ProcessStateWidget()));
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widget->set_layout<GUI::VerticalBoxLayout>(4);
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widget->m_table_view = widget->add<GUI::TableView>();
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widget->m_table_view->set_model(TRY(try_make_ref_counted<ProcessStateModel>(ProcessModel::the(), 0)));
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widget->m_table_view->column_header().set_visible(false);
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widget->m_table_view->column_header().set_section_size(0, 90);
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return widget;
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}
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void ProcessStateWidget::set_pid(pid_t pid)
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{
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static_cast<ProcessStateModel*>(m_table_view->model())->set_pid(pid);
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update();
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}
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}
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