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/*LICENSE_START*/
/*
* Copyright 1995-2002 Washington University School of Medicine
*
* http://brainmap.wustl.edu
*
* This file is part of CARET.
*
* CARET 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.
*
* CARET 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 CARET; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/*LICENSE_END*/
#include <iostream>
#include <QApplication>
#include <QGlobalStatic>
#include <QImage>
#include <QLabel>
#include <QPixmap>
#include <QScrollArea>
#include "CommandImageView.h"
#include "FileFilters.h"
#include "ProgramParameters.h"
#include "ScriptBuilderParameters.h"
/**
* constructor.
*/
CommandImageView::CommandImageView()
: CommandBase("-image-view",
"IMAGE VIEW")
{
}
/**
* destructor.
*/
CommandImageView::~CommandImageView()
{
}
/**
* get full help information.
*/
QString
CommandImageView::getHelpInformation() const
{
QString helpInfo =
(indent3 + getShortDescription() + "\n"
+ indent6 + parameters->getProgramNameWithoutPath() + " " + getOperationSwitch() + " \n"
+ indent9 + "<image-file-name>\n"
+ indent9 + "\n"
+ indent9 + "View an image file.\n"
+ indent9 + "\n"
+ indent9 + "\n"
+ indent9 + "\n");
return helpInfo;
}
/**
* execute the command.
*/
void
CommandImageView::executeCommand() throw (BrainModelAlgorithmException,
CommandException,
FileException,
ProgramParametersException,
StatisticException)
{
//
// Get the parameters
//
const QString imageFileName =
parameters->getNextParameterAsString("Image File Name");
//
// Make sure that are no more parameters
//
checkForExcessiveParameters();
//
// Read the image
//
QImage image;
if (image.load(imageFileName) == false) {
throw CommandException("Unable to load \"" + imageFileName + "\"");
}
//
// Show the image
//
if (displayQImage(image) != 0) {
throw CommandException("Image viewing failed.");
}
}
/**
* get the script builder parameters.
*/
void
CommandImageView::getScriptBuilderParameters(ScriptBuilderParameters& paramsOut) const
{
QStringList fileFilters, fileExtensions;
FileFilters::getImageSaveFileFilters(fileFilters,
fileExtensions);
paramsOut.clear();
paramsOut.addFile("Image File Name", fileFilters);
}
/**
* display a QImage.
*/
int
CommandImageView::displayQImage(const QImage& qimage)
{
//
// Show the image
//
QLabel* label = new QLabel;
label->setPixmap(QPixmap::fromImage(qimage));
//
// There is a limitation with the Mac OSX version of QT in that the program
// must be built as an application for scrollbars to work correctly. So, on
// Mac OSX, simply show the image.
//
#ifdef Q_OS_MAC
label->setFixedSize(qimage.width(), qimage.height());
label->show();
#else // Q_OS_MAC
QScrollArea* scrollArea = new QScrollArea;
scrollArea->setWidget(label);
scrollArea->show();
#endif // Q_OS_MAC
//
// Allow the event loop to execute
//
return qApp->exec();
}
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