/***************************************************************************
    File                 : Table.cpp
    Project              : SciDAVis
    Description          : Table worksheet class
    --------------------------------------------------------------------
    Copyright            : (C) 2006-2009 Tilman Benkert (thzs*gmx.net)
    Copyright            : (C) 2006-2009 Knut Franke (knut.franke*gmx.de)
    Copyright            : (C) 2006-2007 Ion Vasilief (ion_vasilief*yahoo.fr)
                           (replace * with @ in the email addresses) 

 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *  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 "Table.h"
#include "core/column/Column.h"
#include "lib/Interval.h"
#include "table/TableModel.h"
#include "core/datatypes/Double2StringFilter.h"
#include "core/datatypes/String2DoubleFilter.h"
#include "core/datatypes/DateTime2StringFilter.h"
#include "table/AsciiTableImportFilter.h"
#include "ScriptEdit.h"

#include <QMessageBox>
#include <QDateTime>
#include <QTextStream>
#include <QClipboard>
#include <QApplication>
#include <QPainter>
#include <QEvent>
#include <QLayout>
#include <QPrintDialog>
#include <QLocale>
#include <QShortcut>
#include <QProgressDialog>
#include <QFile>
#include <QTemporaryFile>

Table::Table(ScriptingEnv *env, const QString &fname,const QString &sep, int ignoredLines, bool renameCols,
			 bool stripSpaces, bool simplifySpaces, bool convertToNumeric, QLocale numericLocale, const QString& label,
			 QWidget* parent, const char* name, Qt::WFlags f)
	: TableView(label, parent, name,f), scripted(env)
{

	AsciiTableImportFilter filter;
	filter.set_ignored_lines(ignoredLines);
	filter.set_separator(sep);
	filter.set_first_row_names_columns(renameCols);
	filter.set_trim_whitespace(stripSpaces);
	filter.set_simplify_whitespace(simplifySpaces);
	filter.set_convert_to_numeric(convertToNumeric);
	filter.set_numeric_locale(numericLocale);

	QFile file(fname);
	if ( file.open(QIODevice::ReadOnly) )
	{
		d_future_table = static_cast<future::Table *>(filter.importAspect(&file));
		if (!d_future_table)
			d_future_table = new future::Table(0, 0, 0, label);
		else
			d_future_table->setName(label);
	}
	setWindowLabel(fname);
	init();
}

Table::Table(ScriptingEnv *env, int r, int c, const QString& label, QWidget* parent, const char* name, Qt::WFlags f)
	: TableView(label, parent, name,f), scripted(env)
{
	d_future_table = new future::Table(0, r, c, label);
	init();
}

void Table::init()
{
	TableView::setTable(d_future_table);	
	d_future_table->setView(this);	

	birthdate = d_future_table->creationTime().toString(Qt::LocalDate);

	ui.gridLayout1->removeWidget(ui.formula_box);
	delete ui.formula_box;
    ui.formula_box = new ScriptEdit(scriptEnv, ui.formula_tab);
    ui.formula_box->setObjectName(QString::fromUtf8("formula_box"));
    ui.formula_box->setMinimumSize(QSize(60, 10));
    ui.formula_box->setAcceptRichText(false);
    ui.formula_box->setLineWrapMode(QTextEdit::WidgetWidth);
	ui.gridLayout1->addWidget(ui.formula_box, 1, 0, 1, 3);


	for (int i=0; i<columnCount(); i++)
		ui.add_reference_combobox->addItem("col(\""+column(i)->name()+"\")"); 

	ui.add_function_combobox->addItems(scriptEnv->mathFunctions());
	updateFunctionDoc();
	
	connect(ui.add_function_combobox, SIGNAL(currentIndexChanged(int)), 
		this, SLOT(updateFunctionDoc()));
	connect(ui.set_formula_button, SIGNAL(pressed()), 
		this, SLOT(applyFormula()));
	connect(ui.add_function_button, SIGNAL(pressed()), 
		this, SLOT(addFunction()));
	connect(ui.add_reference_button, SIGNAL(pressed()), 
		this, SLOT(addReference()));

	connect(d_future_table, SIGNAL(columnsAboutToBeRemoved(int, int)), this, SLOT(handleColumnsAboutToBeRemoved(int, int)));
	connect(d_future_table, SIGNAL(columnsRemoved(int, int)), this, SLOT(handleColumnsRemoved(int, int)));
	connect(d_future_table, SIGNAL(rowsInserted(int, int)), this, SLOT(handleRowChange()));
	connect(d_future_table, SIGNAL(rowsRemoved(int, int)), this, SLOT(handleRowChange()));
	connect(d_future_table, SIGNAL(dataChanged(int, int, int, int)), this, SLOT(handleColumnChange(int, int, int, int)));
	connect(d_future_table, SIGNAL(columnsReplaced(int, int)), this, SLOT(handleColumnChange(int, int)));

	connect(d_future_table, SIGNAL(columnsInserted(int, int)), this, SLOT(handleChange()));
	connect(d_future_table, SIGNAL(columnsReplaced(int, int)), this, SLOT(handleChange()));
	connect(d_future_table, SIGNAL(columnsRemoved(int, int)), this, SLOT(handleChange()));
	connect(d_future_table, SIGNAL(rowsInserted(int, int)), this, SLOT(handleChange()));
	connect(d_future_table, SIGNAL(rowsRemoved(int, int)), this, SLOT(handleChange()));
	connect(d_future_table, SIGNAL(dataChanged(int, int, int, int)), this, SLOT(handleChange()));
	connect(d_future_table, SIGNAL(headerDataChanged(Qt::Orientation, int, int)), this, SLOT(handleChange()));
	connect(d_future_table, SIGNAL(recalculate()), this, SLOT(recalculate()));

	connect(d_future_table, SIGNAL(aspectDescriptionChanged(const AbstractAspect*)), 
			this, SLOT(handleAspectDescriptionChange(const AbstractAspect *)));
	connect(d_future_table, SIGNAL(aspectDescriptionAboutToChange(const AbstractAspect*)), 
			this, SLOT(handleAspectDescriptionAboutToChange(const AbstractAspect *)));
}

void Table::handleChange()
{
    emit modifiedWindow(this);
}

void Table::handleColumnChange(int first, int count)
{
	for (int i=first; i<first+count; i++)
	    emit modifiedData(this, colName(i));
}

void Table::handleColumnChange(int top, int left, int bottom, int right)
{
	Q_UNUSED(top);
	Q_UNUSED(bottom);
	handleColumnChange(left, right-left+1);
}

void Table::handleColumnsAboutToBeRemoved(int first, int count)
{
	for (int i=first; i<first+count; i++)
	    emit aboutToRemoveCol(colName(i));
}

void Table::handleColumnsRemoved(int first, int count)
{
	for (int i=first; i<first+count; i++)
	    emit removedCol(colName(i));
}

void Table::handleRowChange()
{
	for (int i=0; i<numCols(); i++)
		emit modifiedData(this, colName(i));
}

void Table::setBackgroundColor(const QColor& col)
{
	d_view_widget->setPaletteBackgroundColor( col );
}

void Table::setTextColor(const QColor& col)
{
	d_view_widget->setPaletteForegroundColor(col);
}

void Table::setTextFont(const QFont& fnt)
{
	d_view_widget->setFont(fnt);
}

void Table::setHeaderColor(const QColor& col)
{
	d_view_widget->horizontalHeader()->setPaletteForegroundColor (col);
}

void Table::setHeaderFont(const QFont& fnt)
{
	d_view_widget->horizontalHeader()->setFont(fnt);
}

void Table::exportPDF(const QString& fileName)
{
	print(fileName);
}

void Table::print()
{
	print(QString());
}

void Table::print(const QString& fileName)
{
	QPrinter printer;
	printer.setColorMode (QPrinter::GrayScale);

	if (!fileName.isEmpty())
	{
		printer.setCreator("SciDAVis");
		printer.setOutputFormat(QPrinter::PdfFormat);
		printer.setOutputFileName(fileName);
	}
	else
	{
		QPrintDialog printDialog(&printer);
		if (printDialog.exec() != QDialog::Accepted)
			return;
	}

	printer.setFullPage( true );
	QPainter p;
	if ( !p.begin(&printer ) )
		return; // paint on printer
	int dpiy = printer.logicalDpiY();
	const int margin = (int) ( (1/2.54)*dpiy ); // 1 cm margins

	QHeaderView *hHeader = d_view_widget->horizontalHeader();
	QHeaderView *vHeader = d_view_widget->verticalHeader();

	int rows = numRows();
	int cols = numCols();
	int height = margin;
	int i, vertHeaderWidth = vHeader->width();
	int right = margin + vertHeaderWidth;

	// print header
	p.setFont(hHeader->font());
	QString header_label = d_view_widget->model()->headerData(0, Qt::Horizontal).toString();
	QRect br = p.boundingRect(br, Qt::AlignCenter, header_label);
	p.drawLine(right, height, right, height+br.height());
	QRect tr(br);

	for (i=0;i<cols;i++)
	{
		int w = columnWidth(i);
		tr.setTopLeft(QPoint(right,height));
		tr.setWidth(w);
		tr.setHeight(br.height());
		header_label = d_view_widget->model()->headerData(i, Qt::Horizontal).toString();
		p.drawText(tr, Qt::AlignCenter, header_label,-1);
		right += w;
		p.drawLine(right, height, right, height+tr.height());

		if (right >= printer.width()-2*margin )
			break;
	}

	p.drawLine(margin + vertHeaderWidth, height, right-1, height);//first horizontal line
	height += tr.height();
	p.drawLine(margin, height, right-1, height);

	// print table values
	for (i=0;i<rows;i++)
	{
		right = margin;
		QString cell_text = d_view_widget->model()->headerData(i, Qt::Vertical).toString()+"\t";
		tr = p.boundingRect(tr, Qt::AlignCenter, cell_text);
		p.drawLine(right, height, right, height+tr.height());

		br.setTopLeft(QPoint(right,height));
		br.setWidth(vertHeaderWidth);
		br.setHeight(tr.height());
		p.drawText(br, Qt::AlignCenter, cell_text, -1);
		right += vertHeaderWidth;
		p.drawLine(right, height, right, height+tr.height());

		for(int j=0;j<cols;j++)
		{
			int w = columnWidth (j);
			cell_text = text(i,j)+"\t";
			tr = p.boundingRect(tr,Qt::AlignCenter,cell_text);
			br.setTopLeft(QPoint(right,height));
			br.setWidth(w);
			br.setHeight(tr.height());
			p.drawText(br, Qt::AlignCenter, cell_text, -1);
			right += w;
			p.drawLine(right, height, right, height+tr.height());

			if (right >= printer.width()-2*margin )
				break;
		}
		height += br.height();
		p.drawLine(margin, height, right-1, height);

		if (height >= printer.height()-margin )
		{
			printer.newPage();
			height = margin;
			p.drawLine(margin, height, right, height);
		}
	}
}

int Table::colX(int col)
{
	return d_future_table->colX(col);
}

int Table::colY(int col)
{
	return d_future_table->colY(col);
}

void Table::setPlotDesignation(SciDAVis::PlotDesignation pd)
{
	d_future_table->setSelectionAs(pd);
}

int Table::columnWidth(int col)
{
	return d_view_widget->columnWidth(col);
}

void Table::setColWidths(const QStringList& widths)
{
	for (int i=0;i<widths.count();i++)
		d_view_widget->setColumnWidth(i, widths[i].toInt());
}

void Table::setColumnTypes(const QStringList& ctl)
{
// TODO: obsolete, remove in 0.3.0
	int n = qMin((int)ctl.count(), numCols());
	for (int i=0; i<n; i++)
	{
		QStringList l = ctl[i].split(";");
		switch (l[0].toInt())
		{
			//	old enum: enum ColType{Numeric = 0, Text = 1, Date = 2, Time = 3, Month = 4, Day = 5};
			case 0:
				column(i)->setColumnMode(SciDAVis::Numeric);
				break;
			case 1:
				column(i)->setColumnMode(SciDAVis::Text);
				break;
			case 2:
			case 3:
			case 6:
				column(i)->setColumnMode(SciDAVis::DateTime);
				break;
			case 4:
				column(i)->setColumnMode(SciDAVis::Month);
				break;
			case 5:
				column(i)->setColumnMode(SciDAVis::Day);
				break;
		}
	}
}

QString Table::saveColumnWidths()
{
// TODO: obsolete, remove in 0.3.0
	QString s="ColWidth\t";
	for (int i=0;i<numCols();i++)
		s+=QString::number(columnWidth(i))+"\t";

	return s+"\n";
}

QString Table::saveColumnTypes()
{
// TODO: obsolete, remove in 0.3.0
	QString s="ColType";
	for (int i=0; i<numCols(); i++)
		s += "\t"+QString::number(column(i)->columnMode())+";0/6";
	return s+"\n";
}

void Table::setCommands(const QStringList& com)
{
	for(int i=0; i<(int)com.size() && i<numCols(); i++)
		column(i)->setFormula(Interval<int>(0, numRows()-1), com.at(i).trimmed());
}

void Table::setCommand(int col, const QString& com)
{
	column(col)->setFormula(Interval<int>(0, numRows()-1), com.trimmed());
}

void Table::setCommands(const QString& com)
{
	QStringList lst = com.split("\t");
	lst.pop_front();
	setCommands(lst);
}

bool Table::recalculate()
{
	for (int col=firstSelectedColumn(); col<=lastSelectedColumn(); col++)
		if (!recalculate(col, true))
			return false;
	return true;
}

bool Table::recalculate(int col, bool only_selected_rows)
{
	QApplication::setOverrideCursor(Qt::WaitCursor);
	Column *col_ptr=column(col);
	if (!col_ptr) return false;

	QList< Interval<int> > formula_intervals = col_ptr->formulaIntervals();
	if (only_selected_rows) {
		// remove non-selected rows from list of intervals
		QList< Interval<int> > deselected = Interval<int>(0,col_ptr->rowCount()-1) - selectedRows().intervals();
		foreach(Interval<int> i, deselected)
			Interval<int>::subtractIntervalFromList(&formula_intervals, i);
	}
	foreach(Interval<int> interval, formula_intervals)
	{
		QString formula = col_ptr->formula(interval.start());
		if (formula.isEmpty())
			continue;

		Script *colscript = scriptEnv->newScript(formula, this,  QString("<%1>").arg(colName(col)));
		connect(colscript, SIGNAL(error(const QString&,const QString&,int)), scriptEnv, SIGNAL(error(const QString&,const QString&,int)));
		connect(colscript, SIGNAL(print(const QString&)), scriptEnv, SIGNAL(print(const QString&)));

		if (!colscript->compile()) {
			delete colscript;
			QApplication::restoreOverrideCursor();
			return false;
		}

		colscript->setInt(col+1, "j");
		QVariant ret;
		int start_row = interval.start();
		int end_row = interval.end();
		switch (col_ptr->columnMode()) {
			case SciDAVis::Numeric:
				{
					QVector<double> results(end_row-start_row+1);
					for (int i=start_row; i<=end_row; i++) {
						colscript->setInt(i+1,"i");
						ret = colscript->eval();
						if (!ret.isValid()) {
							delete colscript;
							QApplication::restoreOverrideCursor();
							return false;
						}
						if (ret.canConvert(QVariant::Double))
							results[i-start_row] = ret.toDouble();
						else
							results[i-start_row] = NAN;
					}
					col_ptr->replaceValues(start_row, results);
					break;
				}
			default:
				{
					QStringList results;
					for (int i=start_row; i<=end_row; i++) {
						colscript->setInt(i+1,"i");
						ret = colscript->eval();
						if (!ret.isValid()) {
							delete colscript;
							QApplication::restoreOverrideCursor();
							return false;
						}
						if (ret.type() == QVariant::Double)
							results << QLocale().toString(ret.toDouble(), 'g', 14);
						else if(ret.canConvert(QVariant::String))
							results << ret.toString();
						else 
							results << QString();
					}
					col_ptr->asStringColumn()->replaceTexts(start_row, results);
					break;
				}
		}
		delete colscript;
	}
	QApplication::restoreOverrideCursor();
	return true;
}

QString Table::saveCommands()
{
// TODO: obsolete, remove for 0.3.0, only needed for template saving
	QString s="<com>\n";
	for (int col=0; col<numCols(); col++)
		if (!column(col)->formula(0).isEmpty())
		{
			s += "<col nr=\""+QString::number(col)+"\">\n";
			s += column(col)->formula(0);
			s += "\n</col>\n";
		}
	s += "</com>\n";
	return s;
}

QString Table::saveComments()
{
// TODO: obsolete, remove for 0.3.0, only needed for template saving
	QString s = "Comments\t";
	for (int i=0; i<numCols(); i++)
	{
		s += column(i)->comment() + "\t";
	}
	return s + "\n";
}

QString Table::saveToString(const QString& geometry)
{
	QString s = "<table>\n";
	QString xml;
	QXmlStreamWriter writer(&xml);
	d_future_table->save(&writer);
	s += QString::number(xml.length()) + "\n"; // this is need in case there are newlines in the XML
	s += xml + "\n";
	s += geometry + "\n";
	s +="</table>\n";
	return s;
}

void Table::saveToDevice(QIODevice *device, const QString &geometry)
{
	QTextStream stream(device);
	stream.setEncoding(QTextStream::UnicodeUTF8);

	// write start tag
	stream << "<table>\n";
	stream.flush();

	// On Windows, writing to a QString has been observed to crash for large tables
	// (apparently due to excessive memory usage).
	// => use temporary file if possible
	QTemporaryFile tmp_file;
	QString tmp_string;
	QXmlStreamWriter xml(&tmp_string);
	if (tmp_file.open())
		xml.setDevice(&tmp_file);
	d_future_table->save(&xml);

	// write number of characters of QXmlStreamWriter's output
	// this is needed in case there are newlines in the XML
	int xml_chars = 0;
	if (tmp_file.isOpen()) {
		tmp_file.seek(0);
		QTextStream count(&tmp_file);
		count.setEncoding(QTextStream::UnicodeUTF8);
		while (!count.atEnd())
			xml_chars += count.read(1024).length();
	} else
		xml_chars = tmp_string.length();
	stream << xml_chars << "\n";
	stream.flush();

	// Copy QXmlStreamWriter's output to device
	if (tmp_file.isOpen()) {
		tmp_file.seek(0);
		qint64 bytes_read;
		char buffer[1024];
		while ((bytes_read = tmp_file.read(buffer, 1024)) > 0)
			device->write(buffer, bytes_read);
	} else
		stream << tmp_string;
	stream << "\n";

	// write geometry and end tag
	stream << geometry << "\n";
	stream << "</table>\n";
}

QString Table::saveHeader()
{
// TODO: obsolete, remove for 0.3.0, only needed for template saving
	QString s = "header";
	for (int j=0; j<numCols(); j++)
	{
		switch (column(j)->plotDesignation())
		{
			case SciDAVis::X:
				s += "\t" + colLabel(j) + "[X]";
				break;
			case SciDAVis::Y:
				s += "\t" + colLabel(j) + "[Y]";
				break;
			case SciDAVis::Z:
				s += "\t" + colLabel(j) + "[Z]";
				break;
			case SciDAVis::xErr:
				s += "\t" + colLabel(j) + "[xEr]";
				break;
			case SciDAVis::yErr:
				s += "\t" + colLabel(j) + "[yEr]";
				break;
			default:
				s += "\t" + colLabel(j);
		}
	}
	return s += "\n";
}

int Table::firstXCol()
{
	for (int j=0; j<numCols(); j++)
	{
		if (column(j)->plotDesignation() == SciDAVis::X)
			return j;
	}
	return -1;
}

void Table::setColComment(int col, const QString& s)
{
	column(col)->setComment(s);
}

void Table::setColName(int col, const QString& text)
{
	if (col < 0 || col >= numCols())
		return;

	column(col)->setName(text);
}

QStringList Table::selectedColumns()
{
// TODO for 0.3.0: extended selection support, Column * lists
	QStringList names;
	for (int i=0; i<numCols(); i++)
	{
		if(isColumnSelected(i))
			names << name() + "_" + column(i)->name();
	}
	return names;
}

QStringList Table::YColumns()
{
// TODO for 0.3.0: Column * list
	QStringList names;
	for (int i=0;i<numCols();i++)
	{
		if(column(i)->plotDesignation() == SciDAVis::Y)
			names << name() + "_" + column(i)->name();
	}
	return names;
}

QStringList Table::selectedYColumns()
{
// TODO for 0.3.0: Column * list
	QStringList names;
	for (int i=0;i<numCols();i++)
	{
		if(isColumnSelected(i) && column(i)->plotDesignation() == SciDAVis::Y)
			names << name() + "_" + column(i)->name();
	}
	return names;
}

QStringList Table::selectedErrColumns()
{
// TODO for 0.3.0: Column * list
	QStringList names;
	for (int i=0;i<numCols();i++)
	{
		if (isColumnSelected(i) && 
				(column(i)->plotDesignation() == SciDAVis::xErr || 
				 column(i)->plotDesignation() == SciDAVis::yErr) )
			names << name() + "_" + column(i)->name();
	}
	return names;
}

QStringList Table::drawableColumnSelection()
{
// TODO for 0.3.0: Column * list
	QStringList names;
	for (int i=0; i<numCols(); i++)
	{
		if(isColumnSelected(i) && column(i)->plotDesignation() == SciDAVis::Y)
			names << name() + "_" + column(i)->name();
	}

	for (int i=0; i<numCols(); i++)
	{
		if (isColumnSelected(i) && 
				(column(i)->plotDesignation() == SciDAVis::xErr || 
				 column(i)->plotDesignation() == SciDAVis::yErr) )
			names << name() + "_" + column(i)->name();
	}
	return names;
}

QMap<int, QString> Table::selectedYLabels()
{
// TODO for 0.3.0: Column * list
	QMap<int, QString> names;
	for (int i=0;i <numCols(); i++)
	{
		if(isColumnSelected(i) && column(i)->plotDesignation() == SciDAVis::Y)
			names.insert(i, column(i)->name());
	}
	return names;
}

QStringList Table::columnsList()
{
// TODO for 0.3.0: Column * list
	QStringList names;
	for (int i=0; i<numCols(); i++)
		names << name() +"_" + column(i)->name();

	return names;
}

int Table::numSelectedRows()
{
	return selectedRowCount();
}

int Table::selectedColsNumber()
{
	return selectedColumnCount();
}

QString Table::colName(int col)
{//returns the table name + horizontal header text
	if (col<0 || col >= numCols())
		return QString();

	return QString(name() + "_" + column(col)->name());
}

void Table::insertCols(int start, int count)
{
	if (start < 0)
		start = 0;

	QList<Column*> cols;
	for(int i=0; i<count; i++)
		cols << new Column(QString::number(i+1), SciDAVis::Numeric);
	d_future_table->insertColumns(start, cols);
}

void Table::insertCol()
{
	d_future_table->insertEmptyColumns();
}

void Table::insertRow()
{
	d_future_table->insertEmptyRows();
}

void Table::addCol(SciDAVis::PlotDesignation pd)
{
	d_future_table->addColumn();
	column(d_future_table->columnCount()-1)->setColumnMode(SciDAVis::Numeric); // in case we ever change the default
	column(d_future_table->columnCount()-1)->setPlotDesignation(pd);

}

void Table::addColumns(int c)
{
	QList<Column*> cols;
	for(int i=0; i<c; i++)
		cols << new Column(QString::number(i+1), SciDAVis::Numeric);
	d_future_table->appendColumns(cols);
}

void Table::clearCol()
{
	d_future_table->clearSelectedColumns();
}

void Table::clearCell(int row, int col)
{
	column(col)->setTextAt(row, QString());
	column(col)->setValueAt(row, 0.0);
	column(col)->setDateTimeAt(row, QDateTime());
	column(col)->setInvalid(row, true);
}

void Table::deleteSelectedRows()
{
	d_future_table->removeSelectedRows();
}

void Table::cutSelection()
{
	d_future_table->cutSelection();
}

void Table::selectAllTable()
{
	selectAll();
}

void Table::deselect()
{
	d_view_widget->clearSelection();
}

void Table::clearSelection()
{
	d_future_table->clearSelectedCells();
}

void Table::copySelection()
{
	d_future_table->copySelection();
}

void Table::pasteSelection()
{
	d_future_table->pasteIntoSelection();
}

void Table::removeCol()
{
	d_future_table->removeSelectedColumns();
}

void Table::removeCol(const QStringList& list)
{
	foreach(QString name, list)
		d_future_table->removeColumns(colIndex(name), 1);
}

int Table::numRows()
{
	return d_future_table->rowCount();
}

int Table::numCols()
{
	return d_future_table->columnCount();
}

int Table::rowCount()
{
	return d_future_table->rowCount();
}

int Table::columnCount()
{
	return d_future_table->columnCount();
}

double Table::cell(int row, int col)
{
	Column *colPtr = column(col);
	if (!colPtr) return 0.0;
	if (!colPtr->isInvalid(row)) {
		if (colPtr->columnMode() == SciDAVis::Text) {
			QString yval = colPtr->textAt(row);
			bool valid_data = true;
			double dbval = QLocale().toDouble(yval, &valid_data);
			if (!valid_data)
				return 0.0;
			return dbval;
		}
		return colPtr->valueAt(row);
	}
	else
		return 0.0;
}

void Table::setCell(int row, int col, double val)
{
	column(col)->setValueAt(row, val);
}

QString Table::text(int row, int col)
{
	Column *colPtr = column(col);
	if (!colPtr) return QString();
	return colPtr->asStringColumn()->textAt(row);
}

void Table::setText(int row, int col, const QString & text)
{
	column(col)->asStringColumn()->setTextAt(row, text);
}

void Table::importV0x0001XXHeader(QStringList header)
{
	QStringList col_label = QStringList();
	QList<SciDAVis::PlotDesignation> col_plot_type = QList<SciDAVis::PlotDesignation>();
	for (int i=0; i<header.count();i++)
	{
		if (header[i].isEmpty())
			continue;

		QString s = header[i].replace("_","-");
		if (s.contains("[X]"))
		{
			col_label << s.remove("[X]");
			col_plot_type << SciDAVis::X;
		}
		else if (s.contains("[Y]"))
		{
			col_label << s.remove("[Y]");
			col_plot_type << SciDAVis::Y;
		}
		else if (s.contains("[Z]"))
		{
			col_label << s.remove("[Z]");
			col_plot_type << SciDAVis::Z;
		}
		else if (s.contains("[xEr]"))
		{
			col_label << s.remove("[xEr]");
			col_plot_type << SciDAVis::xErr;
		}
		else if (s.contains("[yEr]"))
		{
			col_label << s.remove("[yEr]");
			col_plot_type << SciDAVis::yErr;
		}
		else
		{
			col_label << s;
			col_plot_type << SciDAVis::noDesignation;
		}
	}
	QList<Column*> quarantine;
	for (int i=0; i<col_label.count() && i<d_future_table->columnCount();i++)
		quarantine << column(i);
	int i = 0;
	foreach(Column * col, quarantine) {
		d_future_table->removeChild(col, true);
		// setting column name while col is still part of table triggers renaming
		// to prevent name clashes
		col->setName(col_label.at(i));
		col->setPlotDesignation(col_plot_type.at(i));
		i++;
	}
	d_future_table->appendColumns(quarantine);
}

void Table::setHeader(QStringList header)
{
	QList<Column*> quarantine;
	for (int i=0; i<header.count() && i<d_future_table->columnCount();i++)
		quarantine << column(i);
	int i = 0;
	foreach(Column * col, quarantine) {
		d_future_table->removeChild(col, true);
		// setting column name while col is still part of table triggers renaming
		// to prevent name clashes
		col->setName(header.at(i));
		i++;
	}
	d_future_table->appendColumns(quarantine);
}

int Table::colIndex(const QString& name)
{
	return d_future_table->columnIndex(column(name));
}

bool Table::noXColumn()
{
	return d_future_table->columnCount(SciDAVis::X) == 0;
}

bool Table::noYColumn()
{
	return d_future_table->columnCount(SciDAVis::Y) == 0;
}

bool Table::exportASCII(const QString& fname, const QString& separator,
		bool withLabels, bool exportSelection)
{
	QFile file(fname);
	if ( !file.open( QIODevice::WriteOnly ) )
	{
		QApplication::restoreOverrideCursor();
		QMessageBox::critical(0, tr("ASCII Export Error"),
				tr("Could not write to file: <br><h4>"+fname+ "</h4><p>Please verify that you have the right to write to this location!").arg(fname));
		return false;
	}

	QTextStream out( &file );
	int i,j;
	int rows = numRows();
	int cols = numCols();
	int selectedCols = 0;
	int topRow = 0, bottomRow = 0;
	int *sCols;
	if (exportSelection)
	{
		for (i=0; i<cols; i++)
		{
			if (isColumnSelected(i))
				selectedCols++;
		}

		sCols = new int[selectedCols+1];
		int temp = 1;
		for (i=0; i<cols; i++)
		{
			if (isColumnSelected(i))
			{
				sCols[temp] = i;
				temp++;
			}
		}

		topRow = firstSelectedRow();
		bottomRow = lastSelectedRow();
	}

	if (withLabels)
	{
		QStringList header = colNames();
		QStringList ls = header.filter(QRegExp ("\\D"));
		if (exportSelection)
		{
			for (i=1; i<selectedCols; i++)
			{
				if (ls.count()>0)
					out << header[sCols[i]] + separator;
				else
					out << "C"+header[sCols[i]] + separator;
			}

			if (ls.count()>0)
				out << header[sCols[selectedCols]] + "\n";
			else
				out << "C" + header[sCols[selectedCols]] + "\n";
		}
		else
		{
			if (ls.count()>0)
			{
				for (j=0; j<cols-1; j++)
					out << header[j]+separator;
				out << header[cols-1]+"\n";
			}
			else
			{
				for (j=0; j<cols-1; j++)
					out << "C" + header[j] + separator;
				out << "C" + header[cols-1] + "\n";
			}
		}
	}// finished writting labels

	QList<Column*> col_ptrs;
	if (exportSelection) {
		for (j=1; j<=selectedCols; j++)
			col_ptrs << column(sCols[j]);
	} else {
		for (j=0;j<cols;j++)
			col_ptrs << column(j);
		topRow = 0;
		bottomRow = rows-1;
	}

	for (i=topRow; i<=bottomRow; i++) {
		bool first = true;
		foreach(Column *col, col_ptrs) {
			if (first)
				first = false;
			else
				out << separator;
			out << col->asStringColumn()->textAt(i);
		}
		out << "\n";
	}

	if (exportSelection)
		delete[] sCols; //free memory
	file.close();
	return true;
}

void Table::customEvent(QEvent *e)
{
	if (e->type() == SCRIPTING_CHANGE_EVENT)
		scriptingChangeEvent((ScriptingChangeEvent*)e);
}

void Table::closeEvent( QCloseEvent *e )
{
	if (askOnClose)
	{
		switch( QMessageBox::information(this,tr("SciDAVis"),
					tr("Do you want to hide or delete") + "<p><b>'" + objectName() + "'</b> ?",
					tr("Delete"), tr("Hide"), tr("Cancel"), 0,2))
		{
			case 0:
				e->accept();
				d_future_table->remove();
				return;

			case 1:
				e->ignore();
				emit hiddenWindow(this);
				break;

			case 2:
				e->ignore();
				break;
		}
	}
	else
	{
		e->accept();
		d_future_table->remove();
		return;
	}
}


void Table::setNumRows(int rows)
{
	d_future_table->setRowCount(rows);
}

void Table::setNumCols(int cols)
{
	d_future_table->setColumnCount(cols);
}

void Table::copy(Table *m)
{
	if (!m)
        return;
	
	d_future_table->copy(m->d_future_table);
}

QString Table::saveAsTemplate(const QString& geometryInfo)
{
	QString s="<table>\t"+QString::number(numRows())+"\t";
	s+=QString::number(numCols())+"\n";
	s+=geometryInfo;
	s+=saveHeader();
	s+=saveColumnWidths();
	s+=saveCommands();
	s+=saveColumnTypes();
	s+=saveComments();
	return s;
}

void Table::restore(const QStringList& list_in)
{
// TODO: obsolete, remove in 0.3.0, only needed for template loading
	QStringList temp_list;
	QStringList::const_iterator iterator=list_in.begin();

	temp_list= (*iterator++).split("\t");
	temp_list.removeFirst();
	importV0x0001XXHeader(temp_list);

	setColWidths((*iterator).right((*iterator).length()-9).split("\t", QString::SkipEmptyParts));
	iterator++;

	temp_list = (*iterator++).split("\t");
	if (temp_list[0] == "com")
	{
		temp_list.removeFirst();
		setCommands(temp_list);
	} 
	else if (temp_list[0] == "<com>") 
	{
		QStringList commands;
		for (int col=0; col<numCols(); col++)
			commands << "";
		for (; iterator != list_in.end() && *iterator != "</com>"; iterator++)
		{
			int col = (*iterator).mid(9,(*iterator).length()-11).toInt();
			QString formula;
			for (iterator++; iterator!=list_in.end() && *iterator != "</col>"; iterator++)
				formula += *iterator + "\n";
			formula.truncate(formula.length()-1);
			commands[col] = formula;
		}
		iterator++;
		setCommands(commands);
	}

	temp_list = (*iterator++).split("\t");
	temp_list.removeFirst();
	setColumnTypes(temp_list);

	temp_list = (*iterator++).split("\t");
	temp_list.removeFirst();
	setColComments(temp_list);
}

void Table::clear()
{
	d_future_table->clear();
}

QStringList Table::colNames()
{
	QStringList list;
	for (int i=0; i<d_future_table->columnCount(); i++)
		list << column(i)->name();
	return list;
}

QString Table::colLabel(int col)
{
	return column(col)->name();
}

SciDAVis::PlotDesignation Table::colPlotDesignation(int col)
{
	return column(col)->plotDesignation();
}

void Table::setColPlotDesignation(int col, SciDAVis::PlotDesignation d)
{
	column(col)->setPlotDesignation(d);
}

QList<int> Table::plotDesignations()
{
	QList<int> list;
	for (int i=0; i<d_future_table->columnCount(); i++)
		list << column(i)->plotDesignation();
	return list;
}

QList<int> Table::columnTypes()
{
	QList<int> list;
	for (int i=0; i<d_future_table->columnCount(); i++)
		list << column(i)->columnMode();
	return list;
}

int Table::columnType(int col)
{
	return column(col)->columnMode();
}

void Table::setColumnTypes(QList<int> ctl)
{
	Q_ASSERT(ctl.size() == d_future_table->columnCount());
	for (int i=0; i<d_future_table->columnCount(); i++)
	{
		switch (ctl.at(i))
		{
			//	old enum: enum ColType{Numeric = 0, Text = 1, Date = 2, Time = 3, Month = 4, Day = 5};
			case 0:
				column(i)->setColumnMode(SciDAVis::Numeric);
				break;
			case 1:
				column(i)->setColumnMode(SciDAVis::Text);
				break;
			case 2:
			case 3:
			case 6:
				column(i)->setColumnMode(SciDAVis::DateTime);
				break;
			case 4:
				column(i)->setColumnMode(SciDAVis::Month);
				break;
			case 5:
				column(i)->setColumnMode(SciDAVis::Day);
				break;
		}
	}
}

void Table::setColumnType(int col, SciDAVis::ColumnMode mode) 
{ 
	column(col)->setColumnMode(mode);
}

QString Table::columnFormat(int col)
{
	// TODO: obsolete, remove in 0.3.0
	Column * col_ptr = column(col);
	if (col_ptr->columnMode() != SciDAVis::DateTime &&
		col_ptr->columnMode() != SciDAVis::Month &&
		col_ptr->columnMode() != SciDAVis::Day)
		return QString();

	DateTime2StringFilter *filter = static_cast<DateTime2StringFilter *>(col_ptr->outputFilter());
	return filter->format();
}

int Table::verticalHeaderWidth()
{
	return d_view_widget->verticalHeader()->width();
}

QString Table::colComment(int col)
{
	return column(col)->comment();
}

QStringList Table::colComments()
{
	QStringList list;
	for (int i=0; i<d_future_table->columnCount(); i++)
		list << column(i)->comment();
	return list;
}

void Table::setColComments(const QStringList& list)
{
	for (int i=0; i<d_future_table->columnCount(); i++)
		column(i)->setComment(list.at(i));
}

bool Table::commentsEnabled()
{
	return areCommentsShown();
}

void Table::applyFormula()
{
	QApplication::setOverrideCursor(Qt::WaitCursor);
	d_future_table->beginMacro(tr("%1: apply formula to column").arg(name()));

	QString formula = ui.formula_box->toPlainText();
	for (int col=firstSelectedColumn(); col<=lastSelectedColumn(); col++)
	{
		Column *col_ptr = column(col);
		col_ptr->insertRows(col_ptr->rowCount(), rowCount()-col_ptr->rowCount());
		col_ptr->setFormula(Interval<int>(0,rowCount()-1), formula);
		if (!recalculate(col, false))
			break;
	}

	d_future_table->endMacro();
	QApplication::restoreOverrideCursor();
}

void Table::addFunction()
{
	static_cast<ScriptEdit *>(ui.formula_box)->insertFunction(ui.add_function_combobox->currentText());
}

void Table::addReference()
{
	ui.formula_box->insertPlainText(ui.add_reference_combobox->currentText());
}

void Table::updateFunctionDoc()
{
	ui.add_function_combobox->setToolTip(scriptEnv->mathFunctionDoc(ui.add_function_combobox->currentText()));
}

void Table::handleAspectDescriptionAboutToChange(const AbstractAspect *aspect)
{
	const Column * col = qobject_cast<const Column *>(aspect);
	if (col && d_future_table->columnIndex(col) != -1)
	{
		d_stored_column_labels[col] = aspect->name();
	}
}

void Table::handleAspectDescriptionChange(const AbstractAspect *aspect)
{
	if (aspect == d_future_table)
	{
		setObjectName(d_future_table->name());
		updateCaption();
		return;
	}
	const Column * col = qobject_cast<const Column *>(aspect);
	if (col && d_future_table->columnIndex(col) != -1 && d_stored_column_labels.contains(col))
	{
		QString old_name = d_stored_column_labels.value(col);
		QString new_name = col->name();
		emit changedColHeader(name() + "_" + old_name,
				name() + "_" + new_name);

		for (int i=0; i<d_future_table->columnCount(); i++)
		{
			QList< Interval<int> > formula_intervals = column(i)->formulaIntervals();
			foreach(Interval<int> interval, formula_intervals)
			{
				QString formula = column(i)->formula(interval.start());
				if (formula.contains("\"" + old_name + "\""))
				{
					formula.replace("\"" + old_name + "\"", "\"" + new_name + "\"");
					column(i)->setFormula(interval, formula);
				}
			}
		}
	}
}

// this function is for backwards compatibility (used by Python), 
void Table::importASCII(const QString &fname, const QString &sep, int ignoredLines,
		bool renameCols, bool stripSpaces, bool simplifySpaces, bool newTable) {
  	Q_UNUSED(newTable)

	AsciiTableImportFilter filter;
	filter.set_ignored_lines(ignoredLines);
	filter.set_separator(sep);
	filter.set_first_row_names_columns(renameCols);
	filter.set_trim_whitespace(stripSpaces);
	filter.set_simplify_whitespace(simplifySpaces);

	QFile file(fname);
	if ( file.open(QIODevice::ReadOnly) )
	{
		future::Table *temp = static_cast<future::Table *>(filter.importAspect(&file));
		if (!temp) return;
		int preexisting_cols = columnCount();
		int overwritten_cols = qMin(temp->columnCount(), preexisting_cols);
		for (int i=0; i<overwritten_cols; i++) {
			column(i)->asStringColumn()->copy(temp->column(i));
			if (renameCols)
				column(i)->setName(temp->column(i)->name());
		}
		for (int i=overwritten_cols; i<preexisting_cols; i++)
			column(overwritten_cols)->remove();
		String2DoubleFilter * filter = new String2DoubleFilter;
		for (int i=overwritten_cols; i<temp->columnCount(); i++) {
			filter->input(0, temp->column(i));
			Column *new_col = new Column(temp->column(i)->name(), SciDAVis::Numeric);
			new_col->setPlotDesignation(SciDAVis::Y);
			new_col->copy(filter->output(0));
			d_future_table->addChild(new_col);
		}
		delete filter;
		delete temp;
		setWindowLabel(fname);
	}
}

