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e43fba0c58
This is done using a wrapper model that transforms all the information about a single process in the ProcessModel and turns it into a 2-column table model with only that process in it.
116 lines
4 KiB
C++
116 lines
4 KiB
C++
/*
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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/SortingProxyModel.h>
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#include <LibGUI/TableView.h>
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#include <LibGfx/FontDatabase.h>
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#include <LibGfx/Palette.h>
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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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refresh();
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}
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virtual ~ProcessStateModel() override { }
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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());
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}
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return m_target_index.sibling_at_column(index.row()).data();
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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_bold_font();
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}
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}
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return {};
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}
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virtual void update() override
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{
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did_update(GUI::Model::DontInvalidateIndexes);
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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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update();
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}
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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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ProcessStateWidget::ProcessStateWidget(pid_t pid)
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{
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set_layout<GUI::VerticalBoxLayout>();
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layout()->set_margins({ 4, 4, 4, 4 });
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m_table_view = add<GUI::TableView>();
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m_table_view->column_header().set_visible(false);
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m_table_view->column_header().set_section_size(0, 90);
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m_table_view->set_model(adopt(*new ProcessStateModel(ProcessModel::the(), pid)));
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}
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ProcessStateWidget::~ProcessStateWidget()
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{
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}
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