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/****************************************************************************
*
* (c) 2009-2016 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
*
* QGroundControl is licensed according to the terms in the file
* COPYING.md in the root of the source code directory.
*
****************************************************************************/
#include "ShapeFileHelper.h"
#include "AppSettings.h"
#include "KMLFileHelper.h"
#include "SHPFileHelper.h"
#include <QFile>
#include <QVariant>
const char* ShapeFileHelper::_errorPrefix = QT_TR_NOOP("Shape file load failed. %1");
QVariantList ShapeFileHelper::determineShapeType(const QString& file)
{
QString errorString;
ShapeType shapeType = determineShapeType(file, errorString);
QVariantList varList;
varList.append(QVariant::fromValue(shapeType));
varList.append(QVariant::fromValue(errorString));
return varList;
}
bool ShapeFileHelper::_fileIsKML(const QString& file, QString& errorString)
{
errorString.clear();
if (file.endsWith(AppSettings::kmlFileExtension)) {
return true;
} else if (file.endsWith(AppSettings::shpFileExtension)) {
return false;
} else {
errorString = QString(_errorPrefix).arg(tr("Unsupported file type. Only .%1 and .%2 are supported.").arg(AppSettings::kmlFileExtension).arg(AppSettings::shpFileExtension));
}
return true;
}
ShapeFileHelper::ShapeType ShapeFileHelper::determineShapeType(const QString& file, QString& errorString)
{
ShapeType shapeType = Error;
errorString.clear();
bool fileIsKML = _fileIsKML(file, errorString);
if (errorString.isEmpty()) {
if (fileIsKML) {
shapeType = KMLFileHelper::determineShapeType(file, errorString);
} else {
shapeType = SHPFileHelper::determineShapeType(file, errorString);
}
}
return shapeType;
}
bool ShapeFileHelper::loadPolygonFromFile(const QString& file, QList<QGeoCoordinate>& vertices, QString& errorString)
{
bool success = false;
errorString.clear();
vertices.clear();
bool fileIsKML = _fileIsKML(file, errorString);
if (errorString.isEmpty()) {
if (fileIsKML) {
success = KMLFileHelper::loadPolygonFromFile(file, vertices, errorString);
} else {
success = SHPFileHelper::loadPolygonFromFile(file, vertices, errorString);
}
}
return success;
}
bool ShapeFileHelper::loadPolylineFromFile(const QString& file, QList<QGeoCoordinate>& coords, QString& errorString)
{
errorString.clear();
coords.clear();
bool fileIsKML = _fileIsKML(file, errorString);
if (errorString.isEmpty()) {
if (fileIsKML) {
KMLFileHelper::loadPolylineFromFile(file, coords, errorString);
} else {
errorString = QString(_errorPrefix).arg(tr("Polyline not support from SHP files."));
}
}
return errorString.isEmpty();
}
QStringList ShapeFileHelper::fileDialogKMLFilters(void) const
{
return QStringList(tr("KML Files (*.%1)").arg(AppSettings::kmlFileExtension));
}
QStringList ShapeFileHelper::fileDialogKMLOrSHPFilters(void) const
{
return QStringList(tr("KML/SHP Files (*.%1 *.%2)").arg(AppSettings::kmlFileExtension).arg(AppSettings::shpFileExtension));
}