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- /*
- * Copyright (c) 2021, 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 "ProcessStateWidget.h"
- #include "ProcessModel.h"
- #include <LibCore/Timer.h>
- #include <LibGUI/BoxLayout.h>
- #include <LibGUI/HeaderView.h>
- #include <LibGUI/Painter.h>
- #include <LibGUI/SortingProxyModel.h>
- #include <LibGUI/TableView.h>
- #include <LibGfx/FontDatabase.h>
- #include <LibGfx/Palette.h>
- class ProcessStateModel final
- : public GUI::Model
- , public GUI::ModelClient {
- public:
- explicit ProcessStateModel(ProcessModel& target, pid_t pid)
- : m_target(target)
- , m_pid(pid)
- {
- refresh();
- }
- virtual ~ProcessStateModel() override { }
- virtual int row_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override { return m_target.column_count({}); }
- virtual int column_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override { return 2; }
- virtual GUI::Variant data(const GUI::ModelIndex& index, GUI::ModelRole role = GUI::ModelRole::Display) const override
- {
- if (role == GUI::ModelRole::Display) {
- if (index.column() == 0) {
- if (index.row() == ProcessModel::Column::Icon) {
- // NOTE: The icon column is nameless in ProcessModel, but we want it to have a name here.
- return "Icon";
- }
- return m_target.column_name(index.row());
- }
- return m_target_index.sibling_at_column(index.row()).data();
- }
- if (role == GUI::ModelRole::Font) {
- if (index.column() == 0) {
- return Gfx::FontDatabase::default_bold_font();
- }
- }
- return {};
- }
- virtual void update() override
- {
- did_update(GUI::Model::DontInvalidateIndexes);
- }
- virtual void model_did_update([[maybe_unused]] unsigned flags) override
- {
- refresh();
- }
- void refresh()
- {
- m_target_index = {};
- for (int row = 0; row < m_target.row_count({}); ++row) {
- auto index = m_target.index(row, ProcessModel::Column::PID);
- if (index.data().to_i32() == m_pid) {
- m_target_index = index;
- break;
- }
- }
- update();
- }
- private:
- ProcessModel& m_target;
- GUI::ModelIndex m_target_index;
- pid_t m_pid { -1 };
- };
- ProcessStateWidget::ProcessStateWidget(pid_t pid)
- {
- set_layout<GUI::VerticalBoxLayout>();
- layout()->set_margins({ 4, 4, 4, 4 });
- m_table_view = add<GUI::TableView>();
- m_table_view->column_header().set_visible(false);
- m_table_view->column_header().set_section_size(0, 90);
- m_table_view->set_model(adopt(*new ProcessStateModel(ProcessModel::the(), pid)));
- }
- ProcessStateWidget::~ProcessStateWidget()
- {
- }
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