ProjectView.cpp

/*
 * This file is part of layoutie.
 *
 * layoutie 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 3 of the License, or
 * (at your option) any later version.
 *
 * layoutie 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 layoutie. If not, see <http://www.gnu.org/licenses/>.
 *
 */

#include "ProjectView.h"

#include "BoardView.h"

#include <SLExceptions.h>
#include <SLBoard.h>

#include <QFile>
#include <QMessageBox>
#include <QVBoxLayout>
#include <QTabWidget>
#include <QFileDialog>

const QString ProjectView::cFileNameFilter = ProjectView::tr("Sprint Layout files (*.lay)");

ProjectView::ProjectView(QWidget* inParent, const QString& inFileName)
 : QWidget(inParent),
 mFileName(inFileName),
 mModified(false)
{
 if (!mFileName.isEmpty())
 {
 QFile file(mFileName);
 if (!file.open(QIODevice::ReadOnly))
 {
 QMessageBox::critical(this, tr("Cannot open file"), tr("Cannot open %1:\n%2") .arg(prettyFileName()) .arg(file.errorString()));
 throw std::exception();
 }
 QByteArray arr = file.readAll();
 try
 {
 mProject.loadFromStream(arr.data(), arr.size());
 }
 catch(SLFormat::Exceptions::LayoutException& e)
 {
 QMessageBox::critical(this, tr("Cannot open file"), tr("Cannot open %1:\n%2") .arg(prettyFileName()) .arg(e.what()));
 throw;
 }
 }
 auto mainLayout = new QVBoxLayout(this);
 mTabWidget = new QTabWidget();
 mTabWidget->setDocumentMode(true);
 mTabWidget->setTabPosition(QTabWidget::South);

 mainLayout->addWidget(mTabWidget);
 this->setLayout(mainLayout);

 try
 {
 for (auto board : mProject.boards())
 {
 auto boardView = new BoardView(mTabWidget, board);
 connect(boardView, SIGNAL(modified()), SLOT(boardModified()));
 mTabWidget->addTab(boardView, QString::fromLocal8Bit(board->name().c_str()));
 }
 }
 catch(SLFormat::Exceptions::LayoutException& e)
 {
 QMessageBox::critical(this, tr("Cannot open file"), tr("Cannot open %1:\n Internal error occurred:\n%2") .arg(prettyFileName()) .arg(e.what()));
 throw;
 }
}

ProjectView::~ProjectView()
{
 trySaveIfModified();
}

bool ProjectView::save()
{
 if (fileName().isEmpty())
 {
 return saveAs();
 }
 QFile file(mFileName);
 if (!file.open(QIODevice::WriteOnly))
 {
 QMessageBox::critical(this, tr("Cannot save file"), tr("Cannot save %1:\n%2") .arg(prettyFileName()) .arg(file.errorString()));
 return false;
 }
 try
 {
 size_t dataSize;
 char* projectData = mProject.saveToStreamVer5(&dataSize);
 if (file.write(projectData, dataSize) != (qint64)dataSize)
 {
 QMessageBox::critical(this, tr("Cannot save file"), tr("Cannot save %1:\n%2") .arg(prettyFileName()) .arg(file.errorString()));
 return false;
 }
 }
 catch(SLFormat::Exceptions::LayoutException& e)
 {
 QMessageBox::critical(this, tr("Error"), tr("Internal error: %1") .arg(e.what()));
 return false;
 }
 setModified(false);
 return true;
}

bool ProjectView::saveAs()
{
 QString saveFileName = QFileDialog::getSaveFileName(this, tr("Save project"), mFileName, ProjectView::cFileNameFilter);
 if (saveFileName.isEmpty())
 {
 return false;
 }
 QString oldFileName = mFileName;
 mFileName = saveFileName;
 if (!save())
 {
 mFileName = oldFileName;
 return false;
 }
 return true;
}

bool ProjectView::trySaveIfModified()
{
 if (!mModified)
 {
 return true;
 }
 QMessageBox::StandardButton res = QMessageBox::question(this, tr("File modified"), tr("File %1 was modified").arg(mFileName.isEmpty() ? prettyFileName() : QString()), QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel, QMessageBox::Cancel);
 if (res == QMessageBox::Cancel)
 {
 return false;
 }
 if (res == QMessageBox::Yes)
 {
 save();
 }
 return true;
}

QString ProjectView::prettyFileName() const
{
 if (mFileName.isEmpty())
 return tr("<Untitled>");
 return QFileInfo(mFileName).baseName();
}

void ProjectView::boardModified()
{
 setModified(true);
}

void ProjectView::setModified(bool inModified)
{
 bool changed = mModified != inModified;
 mModified = inModified;
 if (changed)
 emit modifiedChanged(inModified);
}

const SLFormat::Board* ProjectView::activeBoard() const
{
 if (mTabWidget->count() == 0)
 return nullptr;
 return qobject_cast<BoardView*>(mTabWidget->currentWidget())->board();
}