Description: 
   * Patch to reset the 3D Graph View on clicking 3D Graph->Reset View.
Author: Prathibha B <prathibhab@cdac.in>

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--- kalgebra-4.14.2.orig/src/kalgebra.cpp
+++ kalgebra-4.14.2/src/kalgebra.cpp
@@ -297,29 +297,18 @@ KAlgebra::KAlgebra(QWidget *parent) : KM
 	
 	/////3DGraph
 #ifdef HAVE_OPENGL
-	QWidget *tridim = new QWidget(m_tabs);
-	QVBoxLayout *t_layo = new QVBoxLayout(tridim);
-	t_exp = new Analitza::ExpressionEdit(tridim);
-	t_exp->setExamples(QStringList() << "sin x+sin y" << "(x,y)->x" << "x*y");
-	t_exp->setAns("x");
-	t_model3d = new Analitza::PlotsModel(this);
-	m_graph3d = new Analitza::PlotsView3D(tridim);
-	m_graph3d->setModel(t_model3d);
-	m_graph3d->setUseSimpleRotation(true);
-	
+	tridim = new QWidget(m_tabs);
+	t_layo = new QVBoxLayout(tridim);
+	set3DGraph();
 	tridim->setLayout(t_layo);
 	m_tabs->addTab(tridim, i18n("&3D Graph"));
-	t_layo->addWidget(m_graph3d);
-	t_layo->addWidget(t_exp);
-	
-	connect(t_exp,  SIGNAL(returnPressed()), this, SLOT(new_func3d()));
 	c_results->addOptionsObserver(new Add3DOption(this));
 	
 	////////menu
 	t_menu = menuBar()->addMenu(i18n("3D &Graph"));
 	QAction* t_actions[5];
 	t_menu->addAction(KStandardAction::save(this, SLOT(save3DGraph()), this));
-	t_menu->addAction(KIcon("zoom-original"), i18n("&Reset View"), m_graph3d, SLOT(resetView()));
+	t_menu->addAction(KIcon("zoom-original"), i18n("&Reset View"), this, SLOT(viewReset()));
 	t_menu->addSeparator();
 	t_actions[2] = t_menu->addAction(i18n("Dots"), this, SLOT(set_dots()));
 	t_actions[3] = t_menu->addAction(i18n("Lines"), this, SLOT(set_lines()));
@@ -767,3 +756,30 @@ void KAlgebra::fullScreen(bool isFull)
 		show();
 	}
 }
+
+void KAlgebra::viewReset()
+{
+	t_layo->removeWidget(m_graph3d);
+	t_layo->removeWidget(t_exp);
+
+	set3DGraph();
+	m_status->setText(i18nc("@info:status", "Ready"));
+}
+
+void KAlgebra::set3DGraph()
+{
+	t_exp = new Analitza::ExpressionEdit(tridim);
+	t_exp->setExamples(QStringList() << "sin x+sin y" << "(x,y)->x" << "x*y");
+	t_exp->setAns("x");
+	t_exp->setFocus();
+
+	t_model3d = new Analitza::PlotsModel(this);
+	m_graph3d = new Analitza::PlotsView3D(tridim);
+	m_graph3d->setModel(t_model3d);
+	m_graph3d->setUseSimpleRotation(true);
+	connect(t_exp,  SIGNAL(returnPressed()), this, SLOT(new_func3d()));
+	t_layo->addWidget(m_graph3d);
+	t_layo->addWidget(t_exp);
+
+}
+
--- kalgebra-4.14.2.orig/src/kalgebra.h
+++ kalgebra-4.14.2/src/kalgebra.h
@@ -27,6 +27,7 @@
 #include <QLabel>
 #include <QListView>
 #include <config-kalgebra.h>
+#include <QVBoxLayout>
 
 namespace Analitza {
 class PlotsView2D;
@@ -55,6 +56,8 @@ class KAlgebra : public KMainWindow
 		QPixmap px;
 		QLabel *m_status;
 		QTabWidget* m_tabs;
+		QVBoxLayout *t_layo;
+		QWidget *tridim;
 		
 		//consoleeWidget
 		QMenu* c_menu;
@@ -121,6 +124,8 @@ class KAlgebra : public KMainWindow
 		void set_solid();
 		void save3DGraph();
 		void save3D();
+		void set3DGraph();
+		void viewReset();
 
 		void saveGraph();
 		void functools ( int );