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/*
* Copyright (c) 2012 Mark Liversedge (liversedge@gmail.com)
*
* 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 <QString>
#include <QObject>
#include <QDebug>
#include <QList>
#include <QStringList>
class MainWindow;
class RideMetric;
class FieldDefinition;
class SummaryMetrics;
class DataFilter;
class Leaf {
public:
Leaf() : type(none) { }
// evaluate against a SummaryMetric
bool eval(DataFilter *df, Leaf *, SummaryMetrics);
// tree traversal etc
void print(Leaf *); // print leaf and all children
void validateFilter(DataFilter *, Leaf*); // validate
bool isNumber(DataFilter *df, Leaf *leaf);
void clear(Leaf*);
enum { none, Float, Integer, String, Symbol, Logical, Operation } type;
union value {
float f;
int i;
QString *s;
QString *n;
Leaf *l;
} lvalue, rvalue;
int op;
};
class DataFilter : public QObject
{
Q_OBJECT
public:
DataFilter(QObject *parent, MainWindow *mainWindow);
QStringList &files() { return filenames; }
// used by Leaf
QMap<QString,QString> lookupMap;
QMap<QString,bool> lookupType; // true if a number, false if a string
public slots:
QStringList parseFilter(QString query);
void clearFilter();
void configUpdate();
//void setData(); // set the file list from the current filter
signals:
void parseGood();
void parseBad(QStringList erorrs);
void results(QStringList);
private:
MainWindow *mainWindow;
Leaf *treeRoot;
QStringList errors;
QStringList filenames;
};
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