File indexing completed on 2024-05-12 15:27:42

 /***************************************************************************
     File                 : WorkbookView.cpp
     Project              : LabPlot
     Description          : View class for Workbook
     --------------------------------------------------------------------
     Copyright            : (C) 2015-2020 by Alexander Semke (alexander.semke@web.de)
 
  ***************************************************************************/
 
 /***************************************************************************
  *                                                                         *
  *  This program is free software; you can redistribute it and/or modify   *
  *  it under the terms of the GNU General Public License as published by   *
  *  the Free Software Foundation; either version 2 of the License, or      *
  *  (at your option) any later version.                                    *
  *                                                                         *
  *  This program is distributed in the hope that it will be useful,        *
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
  *  GNU General Public License for more details.                           *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program; if not, write to the Free Software           *
  *   Foundation, Inc., 51 Franklin Street, Fifth Floor,                    *
  *   Boston, MA  02110-1301  USA                                           *
  *                                                                         *
  ***************************************************************************/
 
 #include "WorkbookView.h"
 #include "backend/core/AbstractAspect.h"
 #include "backend/core/AbstractPart.h"
 #include "backend/core/Workbook.h"
 #include "backend/lib/macros.h"
 #include "backend/spreadsheet/Spreadsheet.h"
 #include "backend/matrix/Matrix.h"
 
 #include <QHBoxLayout>
 #include <QMenu>
 #include <QTabBar>
 #include <QTabWidget>
 
 #include <KLocalizedString>
 
 /*!
     \class WorkbookView
     \brief View class for Workbook
 
     \ingroup commonfrontend
  */
 WorkbookView::WorkbookView(Workbook* workbook) : QWidget(),
     m_tabWidget(new QTabWidget(this)),
     m_workbook(workbook) {
 
     m_tabWidget->setTabPosition(QTabWidget::South);
     m_tabWidget->setTabShape(QTabWidget::Rounded);
 //  m_tabWidget->setMovable(true);
     m_tabWidget->setContextMenuPolicy(Qt::CustomContextMenu);
     m_tabWidget->setMinimumSize(200, 200);
 
     auto* layout = new QHBoxLayout(this);
     layout->setContentsMargins(0,0,0,0);
     layout->addWidget(m_tabWidget);
 
     //add tab for each children view
     m_initializing = true;
     for (const auto* aspect : m_workbook->children<AbstractAspect>())
         handleAspectAdded(aspect);
     m_initializing = false;
 
     //Actions
     action_add_spreadsheet = new QAction(QIcon::fromTheme("labplot-spreadsheet"), i18n("Add new Spreadsheet"), this);
     action_add_matrix = new QAction(QIcon::fromTheme("labplot-matrix"), i18n("Add new Matrix"), this);
     connect(action_add_spreadsheet, &QAction::triggered, this, &WorkbookView::addSpreadsheet);
     connect(action_add_matrix, &QAction::triggered, this, &WorkbookView::addMatrix);
 
     //SIGNALs/SLOTs
     connect(m_workbook, &Workbook::aspectDescriptionChanged, this, &WorkbookView::handleDescriptionChanged);
     connect(m_workbook, &Workbook::aspectAdded, this, &WorkbookView::handleAspectAdded);
     connect(m_workbook, &Workbook::aspectAboutToBeRemoved, this, &WorkbookView::handleAspectAboutToBeRemoved);
     connect(m_workbook, &Workbook::requestProjectContextMenu, this, &WorkbookView::createContextMenu);
     connect(m_workbook, &Workbook::workbookItemSelected, this, &WorkbookView::itemSelected);
 
     connect(m_tabWidget, &QTabWidget::currentChanged, this, &WorkbookView::tabChanged);
     connect(m_tabWidget, &QTabWidget::customContextMenuRequested, this, &WorkbookView::showTabContextMenu);
 //  connect(m_tabWidget->tabBar(), &QTabBar::tabMoved, this, &WorkbookView::tabMoved);
 }
 
 WorkbookView::~WorkbookView() {
     //no need to react on currentChanged() in TabWidget when views are deleted
     disconnect(m_tabWidget, nullptr, nullptr, nullptr);
 
     //delete all children views here, its own view will be deleted in ~AbstractPart()
     for (const auto* part : m_workbook->children<AbstractPart>())
         part->deleteView();
 }
 
 int WorkbookView::currentIndex() const {
     return m_tabWidget->currentIndex();
 }
 
 //##############################################################################
 //#########################  Private slots  ####################################
 //##############################################################################
 /*!
   called when the current tab was changed. Propagates the selection of \c Spreadsheet
   or of a \c Matrix object to \c Workbook.
 */
 void WorkbookView::tabChanged(int index) {
     if (m_initializing)
         return;
 
     if (index == -1)
         return;
 
     m_workbook->setChildSelectedInView(lastSelectedIndex, false);
     m_workbook->setChildSelectedInView(index, true);
     lastSelectedIndex = index;
 }
 
 void WorkbookView::tabMoved(int from, int to) {
     Q_UNUSED(from);
     Q_UNUSED(to);
     //TODO:
 //  AbstractAspect* aspect = m_workbook->child<AbstractAspect>(to);
 //  if (aspect) {
 //      m_tabMoving = true;
 //      AbstractAspect* sibling = m_workbook->child<AbstractAspect>(from);
 //      qDebug()<<"insert: " << to << "  " <<  aspect->name() << ",  " << from << "  " << sibling->name();
 //      aspect->remove();
 //      m_workbook->insertChildBefore(aspect, sibling);
 //      qDebug()<<"inserted";
 //      m_tabMoving = false;
 //  }
 }
 
 void WorkbookView::itemSelected(int index) {
     m_tabWidget->setCurrentIndex(index);
 }
 
 /*!
  * Populates the menu \c menu with the spreadsheet and spreadsheet view relevant actions.
  * The menu is used
  *   - as the context menu in WorkbookView
  *   - as the "spreadsheet menu" in the main menu-bar (called form MainWin)
  *   - as a part of the spreadsheet context menu in project explorer
  */
 void WorkbookView::createContextMenu(QMenu* menu) const {
     Q_ASSERT(menu);
 
     QAction* firstAction = nullptr;
     // if we're populating the context menu for the project explorer, then
     //there're already actions available there. Skip the first title-action
     //and insert the action at the beginning of the menu.
     if (menu->actions().size()>1)
         firstAction = menu->actions().at(1);
 
     menu->insertAction(firstAction, action_add_spreadsheet);
     menu->insertAction(firstAction, action_add_matrix);
     menu->insertSeparator(firstAction);
 }
 
 void WorkbookView::showTabContextMenu(QPoint point) {
     QMenu* menu = nullptr;
     auto* aspect = m_workbook->child<AbstractAspect>(m_tabWidget->currentIndex());
     auto* spreadsheet = dynamic_cast<Spreadsheet*>(aspect);
     if (spreadsheet) {
         menu = spreadsheet->createContextMenu();
     } else {
         Matrix* matrix = dynamic_cast<Matrix*>(aspect);
         if (matrix)
             menu = matrix->createContextMenu();
     }
 
     if (menu)
         menu->exec(m_tabWidget->mapToGlobal(point));
 }
 
 void WorkbookView::addMatrix() {
     Matrix* matrix = new Matrix(i18n("Matrix"));
     m_workbook->addChild(matrix);
 }
 
 void WorkbookView::addSpreadsheet() {
     Spreadsheet* spreadsheet = new Spreadsheet(i18n("Spreadsheet"));
     m_workbook->addChild(spreadsheet);
 }
 
 void WorkbookView::handleDescriptionChanged(const AbstractAspect* aspect) {
     int index = m_workbook->indexOfChild<AbstractAspect>(aspect);
     if (index != -1 && index<m_tabWidget->count())
         m_tabWidget->setTabText(index, aspect->name());
 }
 
 void WorkbookView::handleAspectAdded(const AbstractAspect* aspect) {
     const auto* part = dynamic_cast<const AbstractPart*>(aspect);
     if (!part)
         return;
 
     int index = m_workbook->indexOfChild<AbstractAspect>(aspect);
     m_tabWidget->insertTab(index, part->view(), aspect->name());
     m_tabWidget->setCurrentIndex(index);
     m_tabWidget->setTabIcon(m_tabWidget->count(), aspect->icon());
     this->tabChanged(index);
 }
 
 void WorkbookView::handleAspectAboutToBeRemoved(const AbstractAspect* aspect) {
     int index = m_workbook->indexOfChild<AbstractAspect>(aspect);
     m_tabWidget->removeTab(index);
 }