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PLC Manager
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Kellermorph
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/*
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Copyright 2006-2026 The QElectroTech Team
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This file is part of QElectroTech.
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QElectroTech is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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QElectroTech is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "plclinkwidget.h"
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#include "../qetgraphicsitem/masterelement.h"
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#include "../qetgraphicsitem/element.h"
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#include "../elementprovider.h"
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#include "../undocommand/linkelementcommand.h"
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#include "../diagram.h"
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#include "../qetproject.h"
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#include "../properties/elementdata.h"
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#include <QTreeWidget>
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#include <QLineEdit>
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#include <QPushButton>
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#include <QLabel>
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#include <QVBoxLayout>
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#include <QHBoxLayout>
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#include <QGridLayout>
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#include <QMenu>
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#include <QAction>
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#include <QFont>
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#include <QTimer>
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#include <QVBoxLayout>
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#include <QHBoxLayout>
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#include <QGridLayout>
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#include <QMenu>
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#include <QAction>
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PlcLinkWidget::PlcLinkWidget(Element *elmt, QWidget *parent)
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: AbstractElementPropertiesEditorWidget(parent)
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{
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auto *main_layout = new QGridLayout(this);
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// Row 0: Status label + buttons (shown when already linked)
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m_label = new QLabel(tr("Cet élément est déjà lié"), this);
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m_unlink_pb = new QPushButton(tr("Délier"), this);
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m_show_this_pb = new QPushButton(tr("Voir cet élément"), this);
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main_layout->addWidget(m_label, 0, 0);
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main_layout->addWidget(m_unlink_pb, 0, 1);
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main_layout->addWidget(m_show_this_pb, 0, 2);
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// Row 1: Search field
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m_search_field = new QLineEdit(this);
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m_search_field->setPlaceholderText(tr("Recherche"));
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main_layout->addWidget(m_search_field, 1, 0, 1, 3);
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// Row 2: Tree widget
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m_tree_widget = new QTreeWidget(this);
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m_tree_widget->setHeaderLabels({
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tr("Label"), tr("Type"), tr("Adresse"),
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tr("Fonction"), tr("Commentaire"), tr("Anschlüsse")
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});
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m_tree_widget->setRootIsDecorated(true);
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m_tree_widget->setIndentation(20);
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m_tree_widget->setSelectionMode(QAbstractItemView::SingleSelection);
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m_tree_widget->setContextMenuPolicy(Qt::CustomContextMenu);
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m_tree_widget->header()->setStretchLastSection(false);
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m_tree_widget->header()->setSectionResizeMode(0, QHeaderView::ResizeToContents);
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m_tree_widget->header()->setSectionResizeMode(1, QHeaderView::ResizeToContents);
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m_tree_widget->header()->setSectionResizeMode(2, QHeaderView::ResizeToContents);
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m_tree_widget->header()->setSectionResizeMode(3, QHeaderView::ResizeToContents);
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m_tree_widget->header()->setSectionResizeMode(4, QHeaderView::ResizeToContents);
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m_tree_widget->header()->setSectionResizeMode(5, QHeaderView::ResizeToContents);
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main_layout->addWidget(m_tree_widget, 2, 0, 1, 3);
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// Row 3: Hidden masters note
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m_hidden_masters_label = new QLabel(
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tr("Remarque : les éléments maîtres ayant atteint leur nombre maximal "
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"d'esclaves sont masqués."), this);
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m_hidden_masters_label->setWordWrap(true);
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QFont italic_font = m_hidden_masters_label->font();
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italic_font.setItalic(true);
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m_hidden_masters_label->setFont(italic_font);
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m_hidden_masters_label->hide();
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main_layout->addWidget(m_hidden_masters_label, 3, 0, 1, 3);
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main_layout->setRowStretch(2, 1);
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setMinimumWidth(500);
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// Connections
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connect(m_unlink_pb, &QPushButton::clicked,
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this, &PlcLinkWidget::on_m_unlink_pb_clicked);
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connect(m_show_this_pb, &QPushButton::clicked,
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this, &PlcLinkWidget::on_m_show_this_pb_clicked);
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connect(m_search_field, &QLineEdit::textEdited,
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this, &PlcLinkWidget::on_m_search_field_textEdited);
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connect(m_tree_widget, &QTreeWidget::customContextMenuRequested,
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this, &PlcLinkWidget::on_m_tree_widget_customContextMenuRequested);
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if (elmt)
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setElement(elmt);
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}
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void PlcLinkWidget::setElement(Element *element)
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{
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if (m_element == element)
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return;
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m_element = element;
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updateUi();
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}
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void PlcLinkWidget::apply()
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{
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QUndoCommand *undo = associatedUndo();
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if (undo)
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m_element->diagram()->undoStack().push(undo);
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m_element_to_link = nullptr;
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m_pending_io_index = -1;
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}
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QUndoCommand *PlcLinkWidget::associatedUndo() const
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{
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if (!m_element_to_link || m_pending_io_index < 0)
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return nullptr;
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LinkElementCommand *undo = new LinkElementCommand(m_element);
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undo->setLink(m_element_to_link);
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undo->setGroupIndex(m_pending_io_index);
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return undo;
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}
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QString PlcLinkWidget::title() const
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{
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return tr("Automate (PLC)");
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}
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void PlcLinkWidget::updateUi()
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{
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if (m_element->isFree())
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hideButtons();
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else
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showButtons();
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buildPlcTree();
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}
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/**
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@brief PlcLinkWidget::buildPlcTree
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Build the tree showing all PLC-Masters with their IO entries.
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IO entries already linked to a slave are shown as struck-through and greyed out.
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*/
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void PlcLinkWidget::buildPlcTree()
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{
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m_tree_widget->clear();
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m_io_entry_hash.clear();
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if (!m_element || !m_element->diagram() || !m_element->diagram()->project())
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return;
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ElementProvider ep(m_element->diagram()->project());
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QVector<QPointer<Element>> masters = ep.find(ElementData::Master);
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QSet<int> used_io_indices;
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for (Element *elmt : masters) {
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if (!elmt || elmt->elementData().m_master_type != ElementData::PLC)
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continue;
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const auto &plc_data = elmt->elementData().plcMasterData();
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if (plc_data.ios.isEmpty())
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continue;
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// Skip full masters
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MasterElement *me = static_cast<MasterElement*>(elmt);
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if (me->isFull()) {
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m_hidden_masters_label->show();
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continue;
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}
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// Collect used IO indices for this master
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used_io_indices.clear();
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for (Element *linked : elmt->linkedElements()) {
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int idx = elmt->groupIndexForElement(linked);
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if (idx >= 0)
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used_io_indices.insert(idx);
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}
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// Create parent item for this PLC-Master
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auto *parent_item = new QTreeWidgetItem(m_tree_widget);
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// Show master label + diagram info
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QString master_label = elmt->actualLabel();
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if (master_label.isEmpty())
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master_label = elmt->name();
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QString folio_info;
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if (elmt->diagram()) {
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folio_info = QString::number(elmt->diagram()->folioIndex() + 1);
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}
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parent_item->setText(0, QString("%1 (%2)")
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.arg(master_label)
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.arg(folio_info));
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QFont bold_font = parent_item->font(0);
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bold_font.setBold(true);
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parent_item->setFont(0, bold_font);
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parent_item->setExpanded(false);
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// Add child items for each IO entry
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for (int i = 0; i < plc_data.ios.size(); ++i) {
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const auto &io = plc_data.ios.at(i);
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auto *child_item = new QTreeWidgetItem(parent_item);
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child_item->setText(1, ElementData::translatedPlcIOType(io.type));
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child_item->setText(2, io.address);
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child_item->setText(3, io.functionText);
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child_item->setText(4, io.comment);
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// Terminal count
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child_item->setText(5, QString::number(io.terminalCount));
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PlcIoEntry entry;
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entry.master = elmt;
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entry.ioIndex = i;
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m_io_entry_hash.insert(child_item, entry);
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// If this IO is already linked to a slave, grey it out and strike through
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if (used_io_indices.contains(i)) {
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QFont strike_font = child_item->font(0);
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strike_font.setStrikeOut(true);
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child_item->setFont(0, strike_font);
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child_item->setFont(1, strike_font);
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child_item->setFont(2, strike_font);
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child_item->setFont(3, strike_font);
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child_item->setFont(4, strike_font);
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child_item->setFont(5, strike_font);
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QBrush grey_brush(Qt::gray);
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for (int col = 0; col < 6; ++col)
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child_item->setForeground(col, grey_brush);
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// Show which slave is linked
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for (Element *linked : elmt->linkedElements()) {
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if (elmt->groupIndexForElement(linked) == i) {
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child_item->setToolTip(0,
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tr("Lié à: %1").arg(linked->actualLabel()));
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break;
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}
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}
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child_item->setFlags(child_item->flags() & ~Qt::ItemIsSelectable);
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}
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}
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}
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}
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void PlcLinkWidget::hideButtons()
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{
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m_label->hide();
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m_unlink_pb->hide();
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m_show_this_pb->hide();
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m_search_field->show();
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}
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void PlcLinkWidget::showButtons()
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{
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m_label->show();
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m_unlink_pb->show();
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m_show_this_pb->show();
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m_search_field->hide();
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}
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void PlcLinkWidget::on_m_search_field_textEdited(const QString &text)
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{
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for (int i = 0; i < m_tree_widget->topLevelItemCount(); ++i) {
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QTreeWidgetItem *parent = m_tree_widget->topLevelItem(i);
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bool any_child_visible = false;
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for (int j = 0; j < parent->childCount(); ++j) {
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QTreeWidgetItem *child = parent->child(j);
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bool match = text.isEmpty();
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if (!match) {
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for (int col = 0; col < child->columnCount(); ++col) {
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if (child->text(col).contains(text, Qt::CaseInsensitive)) {
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match = true;
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break;
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}
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}
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}
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child->setHidden(!match);
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if (match) any_child_visible = true;
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}
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// Also check if parent label matches
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if (!text.isEmpty() && parent->text(0).contains(text, Qt::CaseInsensitive)) {
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any_child_visible = true;
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for (int j = 0; j < parent->childCount(); ++j)
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parent->child(j)->setHidden(false);
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}
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parent->setHidden(!any_child_visible);
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}
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}
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void PlcLinkWidget::on_m_tree_widget_customContextMenuRequested(const QPoint &pos)
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{
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QTreeWidgetItem *item = m_tree_widget->itemAt(pos);
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if (!item)
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return;
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// Only show context menu for IO child items (not parent master items)
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if (!m_io_entry_hash.contains(item))
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return;
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const PlcIoEntry &entry = m_io_entry_hash.value(item);
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// Check if this IO is already linked
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Element *master = entry.master;
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if (!master)
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return;
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QSet<int> used_indices;
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for (Element *linked : master->linkedElements()) {
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int idx = master->groupIndexForElement(linked);
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if (idx >= 0)
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used_indices.insert(idx);
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}
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if (used_indices.contains(entry.ioIndex))
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return; // Already linked, no actions
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QMenu menu;
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QAction *link_action = menu.addAction(tr("Connecter"));
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QAction *selected_action = menu.exec(m_tree_widget->viewport()->mapToGlobal(pos));
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if (selected_action == link_action) {
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m_element_to_link = master;
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m_pending_io_index = entry.ioIndex;
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apply();
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}
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}
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void PlcLinkWidget::on_m_unlink_pb_clicked()
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{
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if (!m_element || m_element->isFree())
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return;
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LinkElementCommand *undo = new LinkElementCommand(m_element);
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undo->unlinkAll();
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m_element->diagram()->undoStack().push(undo);
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updateUi();
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}
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void PlcLinkWidget::on_m_show_this_pb_clicked()
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{
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if (!m_element || !m_element->diagram())
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return;
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m_element->diagram()->showMe();
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m_element->setHighlighted(true);
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}
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