Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdeedu@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 352 insertions, 0 deletions

diff --git a/kalzium/src/elementdataviewer.cpp b/kalzium/src/elementdataviewer.cpp
new file mode 100644
index 00000000..6fe8a3e3
--- /dev/null
+++ b/kalzium/src/elementdataviewer.cpp
@@ -0,0 +1,352 @@
+/***************************************************************************
+    copyright            : (C) 2004, 2005  by Carsten Niehaus
+    email                : cniehaus@kde.org
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "elementdataviewer.h"
+#include "element.h"
+#include "plotsetupwidget.h"
+#include "plotwidget.h"
+#include "kalziumdataobject.h"
+
+#include <klocale.h>
+#include <knuminput.h>
+#include <kcombobox.h>
+#include <kdebug.h>
+#include <kactioncollection.h>
+#include <kapplication.h>
+
+//QT-Includes
+#include <qlayout.h>
+#include <qcheckbox.h>
+#include <qlabel.h>
+
+ElementDataViewer::ElementDataViewer( QWidget *parent, const char* name )
+	: KDialogBase( KDialogBase::Plain, 
+			i18n( "Plot Data") , 
+			Help | User1 | Close,
+			User1,
+			parent, name )
+{
+	d = KalziumDataObject::instance();
+
+	yData = new AxisData();
+	
+	QHBoxLayout *layout = new QHBoxLayout(plainPage(), 0, KDialog::spacingHint() );
+
+	m_pPlotSetupWidget = new PlotSetupWidget( plainPage(), "plotsetup" );	
+	m_pPlotSetupWidget->from->setMaxValue( d->numberOfElements() - 1 );
+	m_pPlotSetupWidget->to->setMaxValue( d->numberOfElements() );
+	m_pPlotWidget = new PlotWidget( 0.0, 12.0 ,0.0 ,22.0, plainPage(), "plotwidget" );
+	m_pPlotWidget->setYAxisLabel(" ");
+	m_pPlotWidget->setMinimumWidth( 200 );
+	m_pPlotWidget->resize( 400, m_pPlotWidget->height() );
+
+	layout->addWidget( m_pPlotSetupWidget );
+	layout->addWidget( m_pPlotWidget );
+	layout->setStretchFactor( m_pPlotSetupWidget, 0 );
+	layout->setStretchFactor( m_pPlotWidget, 1 );
+
+	// setup the list of names
+	EList::iterator it = d->ElementList.begin();
+	const EList::iterator itEnd = d->ElementList.end();
+	for( ; it != itEnd ; ++it )
+	{
+		names.append( (*it)->elname() );
+	}
+
+	resize(500, 500);
+
+	setButtonText( User1, i18n("&Plot") );
+
+	m_actionCollection = new KActionCollection(this);
+	KStdAction::quit(this, SLOT(slotClose()), m_actionCollection);	
+
+	connect ( m_pPlotSetupWidget->KCB_y,         SIGNAL( activated(int) ),
+			  this,                              SLOT( drawPlot()) );
+
+	connect ( m_pPlotSetupWidget->connectPoints, SIGNAL( toggled(bool) ),
+			  this,                              SLOT( drawPlot()) );
+	connect ( m_pPlotSetupWidget->showNames,     SIGNAL( toggled(bool) ),
+			  this,                              SLOT( drawPlot()) );
+
+	// Draw the plot so that the user doesn't have to press the "Plot"
+	// button to seee anything.
+	drawPlot();
+}
+
+void ElementDataViewer::slotHelp()
+{
+	emit helpClicked();
+	if ( kapp )
+		kapp->invokeHelp ( "plot_data", "kalzium" );
+}
+
+// Reimplement slotUser1 from KDialogBase
+
+void ElementDataViewer::slotUser1()
+{
+	kdDebug() << "slotUser1" << endl;
+
+	drawPlot();
+}
+
+
+void ElementDataViewer::setLimits(int f, int t)
+{
+	kdDebug() << "setLimits()" << endl;
+	
+	double minY = yData->value(f);
+	double maxY = yData->value(f);
+
+	for ( int _currentVal = f; _currentVal <= t; _currentVal++ )
+	{
+		double v = yData->value( _currentVal );
+		
+		if( minY > v )
+			minY = v;
+		if( maxY < v)
+			maxY = v;
+	}
+	
+	// try to put a small padding to make the points on the axis visible
+	double dx = ( t - f + 1 ) / 25 + 1.0;
+	double dy = ( maxY - minY ) / 10.0;
+	// in case that dy is quite small (for example, when plotting a single
+	// point)
+	if ( dy < 1e-7 )
+		dy = maxY / 10.0;
+	m_pPlotWidget->setLimits( f - dx, t + dx, minY - dy, maxY + dy );
+}
+
+void ElementDataViewer::paintEvent(QPaintEvent*)
+{
+	m_pPlotWidget->update();
+}
+
+void ElementDataViewer::keyPressEvent(QKeyEvent *e)
+{
+	switch ( e->key() )
+	{
+		case Key_Plus:
+		case Key_Equal:
+			slotZoomIn();
+			break;
+		case Key_Minus:
+		case Key_Underscore:
+			slotZoomOut();
+			break;
+		case Key_Escape:
+			close();
+			break;
+	}
+}
+
+void ElementDataViewer::slotZoomIn(){}
+void ElementDataViewer::slotZoomOut(){}
+
+void ElementDataViewer::setupAxisData()
+{
+	DoubleList l;
+
+	const int selectedData = m_pPlotSetupWidget->KCB_y->currentItem();
+
+	//this should be somewhere else, eg in its own method
+	yData->m_currentDataType = selectedData;
+
+	EList::iterator it = d->ElementList.begin();
+	const EList::iterator itEnd = d->ElementList.end();
+	switch(selectedData)
+	{
+		case AxisData::MASS:
+			for( ; it != itEnd ; ++it ) {
+				double value = (*it)->mass();
+				if( value > 0.0 )
+				  l.append( value );
+				else
+				  l.append( 0.0 );
+			}
+			m_pPlotWidget->setYAxisLabel(i18n("Atomic Mass [u]"));
+			break;
+		case AxisData::MEANWEIGHT:
+			for( ; it != itEnd ; ++it ) {
+				double value =(*it)->meanmass();
+				if( value > 0.0 )
+				  l.append( value );
+				else
+				  l.append( 0.0 );
+			}
+			m_pPlotWidget->setYAxisLabel(i18n("Mean Mass [u]"));
+			break;
+		case AxisData::DENSITY:
+			for( ; it != itEnd ; ++it ) {
+				double value =(*it)->density();
+				if( value > 0.0 )
+				  l.append( value );
+				else
+				  l.append( 0.0 );
+			}
+			m_pPlotWidget->setYAxisLabel(i18n("Density"));
+			break;
+		case AxisData::EN:
+			for( ; it != itEnd ; ++it ) {
+				double value = (*it)->electroneg();
+				if( value > 0.0 )
+				  l.append( value );
+				else
+				  l.append( 0.0 );
+			}
+			m_pPlotWidget->setYAxisLabel(i18n("Electronegativity"));
+			break;
+		case AxisData::MELTINGPOINT:
+			for( ; it != itEnd ; ++it ) {
+				double value = (*it)->melting();
+				if( value > 0.0 )
+				  l.append( value );
+				else
+				  l.append( 0.0 );
+			}
+			m_pPlotWidget->setYAxisLabel(i18n("Melting Point [K]"));
+			break;
+		case AxisData::BOILINGPOINT:
+			for( ; it != itEnd ; ++it ) {
+				double value = (*it)->boiling();
+				if( value > 0.0 )
+				  l.append( value );
+				else
+				  l.append( 0.0 );
+			}
+			m_pPlotWidget->setYAxisLabel(i18n("Boiling Point [K]"));
+			break;
+		case AxisData::ATOMICRADIUS:
+			for( ; it != itEnd ; ++it ) {
+				double value = (*it)->radius( Element::ATOMIC );
+				if( value > 0.0 )
+				  l.append( value );
+				else
+				  l.append( 0.0 );
+			}
+			m_pPlotWidget->setYAxisLabel(i18n("Atomic Radius [pm]"));
+			break;
+		case AxisData::COVALENTRADIUS:
+			for( ; it != itEnd ; ++it ) {
+				double value = (*it)->radius( Element::COVALENT );
+				if( value > 0.0 )
+				  l.append( value );
+				else
+				  l.append( 0.0 );
+			}
+			m_pPlotWidget->setYAxisLabel(i18n("Covalent Radius [pm]"));
+			break;
+	}
+
+	yData->setDataList( l );
+}
+
+void ElementDataViewer::drawPlot()
+{
+	kdDebug() << "drawPlot()" << endl;
+
+	/*
+	 * to be 100% safe delete the old list
+	 */
+	m_pPlotWidget->clearObjectList();
+
+	/*
+	 * spare the next step in case everything is already set and done
+	 */
+	if( yData->currentDataType() != m_pPlotSetupWidget->KCB_y->currentItem() )
+		initData();
+
+	/*
+	 * if the user selected the elements 20 to 30 the list-values are 19 to 29!!!
+	 */
+	const int from = m_pPlotSetupWidget->from->value();
+	const int to = m_pPlotSetupWidget->to->value();
+	
+	/*
+	 * The number of elements. #20 to 30 are 30-20+1=11 Elements
+	 */
+	const int num = to-from+1;
+	
+	setLimits(from,to);
+
+	/*
+	 * check if the users wants to see the elementnames or not
+	 */
+	bool showNames = m_pPlotSetupWidget->showNames->isChecked();
+	bool connectPoints = m_pPlotSetupWidget->connectPoints->isChecked();
+
+	if ( connectPoints )
+		m_pPlotWidget->setConnection( true );
+	else
+		m_pPlotWidget->setConnection( false );
+		
+	/*
+	 * reserve the memory for the KPlotObjects
+	 */
+	//TODO QT4 replace QMemArray with QVector
+	QMemArray<KPlotObject*> dataPoint(num);
+	QMemArray<KPlotObject*> dataPointLabel(num);
+
+	int number = 0;
+
+	double max = 0.0, av = 0.0;
+	double min = yData->value( 1 );
+
+	/*
+	 * iterate for example from element 20 to 30 and contruct
+	 * the KPlotObjects
+	 */
+	for( int i = from; i < to+1 ; i++ )
+	{
+		double v = yData->value( i );
+
+		if ( v >= 0.0 )
+		{
+			if ( v < min )
+				min = v;
+			if ( v > max )
+				max = v;
+			av += v;
+
+			dataPoint[number] = new KPlotObject( "whocares", "Blue", KPlotObject::POINTS, 4, KPlotObject::CIRCLE );
+			dataPoint[number]->addPoint( new DPoint( (double)i , v ) );
+			m_pPlotWidget->addObject( dataPoint[ number ] );
+
+			if (showNames)
+			{
+				dataPointLabel[number] = new KPlotObject( *(names.at(i-1)), "Red", KPlotObject::LABEL );
+				dataPointLabel[number]->addPoint( new DPoint( (double)i , yData->value( i ) ) );
+				m_pPlotWidget->addObject( dataPointLabel[number] );
+			}
+		}
+		number++;
+	}
+
+	//now set the values for the min, max and avarage value
+	m_pPlotSetupWidget->aValue->setText( QString::number( av/number ) );
+	m_pPlotSetupWidget->minValue->setText( QString::number( min ) );
+	m_pPlotSetupWidget->maxValue->setText( QString::number( max ) );
+}
+
+void ElementDataViewer::initData()
+{
+	setupAxisData();
+}
+
+///////////////////////////////////////////////
+
+AxisData::AxisData()
+{}
+
+#include "elementdataviewer.moc"