Description:
   * Patch to resolve, 3D Graph -> Save displays black page.
Author: Prathibha B <prathibhab@cdac.in>

---
The information above should follow the Patch Tagging Guidelines, please
checkout http://dep.debian.net/deps/dep3/ to learn about the format. Here
are templates for supplementary fields that you might want to add:

Origin: <vendor|upstream|other>, <url of original patch>
Bug: <url in upstream bugtracker>
Bug-Debian: https://bugs.debian.org/<bugnumber>
Bug-Ubuntu: https://launchpad.net/bugs/<bugnumber>
Forwarded: <no|not-needed|url proving that it has been forwarded>
Reviewed-By: <name and email of someone who approved the patch>
Last-Update: <YYYY-MM-DD>

--- kalgebra-4.14.2.orig/src/kalgebra.cpp
+++ kalgebra-4.14.2/src/kalgebra.cpp
@@ -58,6 +58,10 @@
 #include <KToggleFullScreenAction>
 #include <kabstractfilewidget.h>
 #include <analitzaplot/plotsfactory.h>
+#include <QApplication>
+#include <QRect>
+#include <QDesktopWidget>
+#include <QTimer>
 
 class Add2DOption : public InlineOptions
 {
@@ -573,12 +577,24 @@ void KAlgebra::set_solid()
 #endif
 }
 
+void KAlgebra::save3D()
+{
+	QRect rect=geometry();
+	px=QPixmap::grabWindow(QApplication::desktop()->winId(),rect.x(),rect.y(),rect.width(),rect.height());
+}
+
 void KAlgebra::save3DGraph()
 {
 #ifdef HAVE_OPENGL
+	//Prathibha B(BOSS Team) - To resolve, 'save only displays a black page'.
+	menuBar()->hide();
+	statusBar()->hide();
+	t_exp->hide();
+	QTimer::singleShot(100, this, SLOT(save3D()));
+	
 	QString path = KFileDialog::getSaveFileName(KUrl(), i18n("*.png|PNG File\n*.pdf|PDF Document"), this, QString(), KFileDialog::ConfirmOverwrite);
 	if(!path.isEmpty()) {
-		QPixmap px = m_graph3d->renderPixmap();
+		//QPixmap px = m_graph3d->renderPixmap();
 		if(path.endsWith(".pdf")) {
 			QPrinter printer;
 			printer.setOutputFormat(QPrinter::PdfFormat);
@@ -593,6 +609,9 @@ void KAlgebra::save3DGraph()
 			px.save(path);
 		}
 	}
+	menuBar()->show();
+	statusBar()->show();
+	t_exp->show();
 #endif
 }
 
--- kalgebra-4.14.2.orig/src/kalgebra.h
+++ kalgebra-4.14.2/src/kalgebra.h
@@ -52,6 +52,7 @@ class KAlgebra : public KMainWindow
 		void add2D(const Analitza::Expression& exp);
 		void add3D(const Analitza::Expression& exp);
 	private:
+		QPixmap px;
 		QLabel *m_status;
 		QTabWidget* m_tabs;
 		
@@ -119,7 +120,8 @@ class KAlgebra : public KMainWindow
 		void set_lines();
 		void set_solid();
 		void save3DGraph();
-		
+		void save3D();
+
 		void saveGraph();
 		void functools ( int );