FunctionParametersDialog.cpp

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/*
        Aseba - an event-based framework for distributed robot control
        Copyright (C) 2007--2012:
                Stephane Magnenat <stephane at magnenat dot net>
                (http://stephane.magnenat.net)
                and other contributors, see authors.txt for details
        
        This program is free software: you can redistribute it and/or modify
        it under the terms of the GNU Lesser General Public License as published
        by the Free Software Foundation, version 3 of the License.
        
        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 Lesser General Public License for more details.
        
        You should have received a copy of the GNU Lesser General Public License
        along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

#include "FunctionParametersDialog.h"
#include "CustomDelegate.h"
#include <QtGui>

#include <FunctionParametersDialog.moc>

namespace Aseba
{
        
        FunctionParametersDialog::FunctionParametersDialog(const QString &name, const std::vector<unsigned> &parameters)
        {
                QVBoxLayout *mainLayout = new QVBoxLayout;
                
                // title
                QHBoxLayout *titleLayout = new QHBoxLayout;
                titleLayout->addWidget(new QLabel(QString("<b>%0</b>").arg(name)));
                titleLayout->addStretch();
                
                addParameterButton = new QPushButton(QIcon(":/images/add.png"), "");
                addParameterButton->setMinimumSize(20, 20);
                titleLayout->addWidget(addParameterButton);
                
                delParameterButton = new QPushButton(QIcon(":/images/remove.png"), "");
                delParameterButton->setMinimumSize(20, 20);
                delParameterButton->setDisabled(true);
                titleLayout->addWidget(delParameterButton);
                
                // parameter table
                parametersTable = new QTableWidget(0, 3);
                parametersTable->setShowGrid(false);
                parametersTable->verticalHeader()->hide();
                parametersTable->horizontalHeader()->hide();
                //parametersTable->setSelectionMode(QAbstractItemView::NoSelection);
                parametersTable->setSelectionMode(QAbstractItemView::SingleSelection);
                parametersTable->setSelectionBehavior(QAbstractItemView::SelectRows);
                parametersTable->setItemDelegateForColumn(0, &spinBoxDelegate);
                
                // fill table
                parametersTable->resizeColumnToContents(1);
                parametersTable->resizeColumnToContents(2);
                for (size_t i = 0; i < parameters.size(); i++)
                        addEntry(parameters[i]);
                parametersTable->resizeRowsToContents();
                
                // ok button
                QPushButton *okButton = new QPushButton(tr("OK"));
                okButton->setDefault(true);
                
                // connections
                connect(addParameterButton, SIGNAL(clicked()), SLOT(addParameter()));
                connect(delParameterButton, SIGNAL(clicked()), SLOT(deleteParameter()));
                connect(parametersTable, SIGNAL(itemSelectionChanged()), SLOT(argumentSelectionChanged()));
                connect(parametersTable, SIGNAL(cellClicked ( int , int )), SLOT(cellClicked ( int , int )));
                connect(okButton, SIGNAL(clicked()), SLOT(accept()));
                
                // layout
                mainLayout->addLayout(titleLayout);
                mainLayout->addWidget(parametersTable);
                mainLayout->addWidget(okButton);
                
                // main
                setLayout(mainLayout);
                resize(240, 240);
                setWindowTitle(tr("Native function"));
        }
        
        std::vector<unsigned> FunctionParametersDialog::getParameters() const
        {
                std::vector<unsigned> parameters;
                for (int i = 0; i < parametersTable->rowCount(); i++)
                        parameters.push_back(parametersTable->item(i, 0)->data(Qt::DisplayRole).toUInt());
                return parameters;
        }
        
        void FunctionParametersDialog::addParameter()
        {
                addEntry(1);
        }
        
        void FunctionParametersDialog::deleteParameter()
        {
                parametersTable->removeRow(parametersTable->currentRow());
        }
        
        void FunctionParametersDialog::argumentSelectionChanged()
        {
                delParameterButton->setEnabled(!parametersTable->selectedItems().isEmpty());
        }
        
        void FunctionParametersDialog::cellClicked(int row, int column)
        {
                if (column == 1)
                {
                        if (row > 0)
                        {
                                QString text = parametersTable->item(row, 0)->text();
                                parametersTable->item(row, 0)->setText(parametersTable->item(row - 1, 0)->text());
                                parametersTable->item(row - 1, 0)->setText(text);
                                parametersTable->setCurrentCell(row - 1, 0);
                        }
                }
                else if (column == 2)
                {
                        if (row + 1 < parametersTable->rowCount())
                        {
                                QString text = parametersTable->item(row, 0)->text();
                                parametersTable->item(row, 0)->setText(parametersTable->item(row + 1, 0)->text());
                                parametersTable->item(row + 1, 0)->setText(text);
                                parametersTable->setCurrentCell(row + 1, 0);
                        }
                }
        }
        
        void FunctionParametersDialog::addEntry(int value)
        {
                int rowCount = parametersTable->rowCount();
                parametersTable->insertRow(rowCount);
                QTableWidgetItem *item;
                
                item = new QTableWidgetItem(QString("%0").arg(value));
                item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsEditable | Qt::ItemIsSelectable);
                parametersTable->setItem(rowCount, 0, item);
                
                item = new QTableWidgetItem(QIcon(":/images/up.png"), "");
                item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
                parametersTable->setItem(rowCount, 1, item);
                
                item = new QTableWidgetItem(QIcon(":/images/down.png"), "");
                item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
                parametersTable->setItem(rowCount, 2, item);
                
                parametersTable->resizeColumnToContents(1);
                parametersTable->resizeColumnToContents(2);
        }
        
}