--- /dev/null
+// SMESH SMESHGUI : GUI for SMESH component
+//
+// Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License.
+//
+// This library 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
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+// See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
+//
+//
+//
+// File : SMESHGUI_PatternWidget.cxx
+// Author : Michael ZORIN
+// Module : SMESH
+// $Header:
+
+#include "SMESHGUI_PatternWidget.h"
+
+//Qt includes
+#include <qpainter.h>
+#include <qpoint.h>
+
+
+//=================================================================================
+// class : SMESHGUI_PatternWidget()
+// purpose :
+//=================================================================================
+SMESHGUI_PatternWidget::SMESHGUI_PatternWidget( QWidget* parent, const char* name, WFlags fl )
+ : QFrame( parent, name, WStyle_Customize)
+{
+ myMinU = myMinV = myMaxU = myMaxV = 0;
+ setMinimumHeight(150);
+ repaint();
+}
+
+
+
+//=================================================================================
+// function : ~SMESHGUI_PatternWidget()
+// purpose :
+//=================================================================================
+SMESHGUI_PatternWidget::~SMESHGUI_PatternWidget()
+{
+}
+
+
+//=================================================================================
+// function : SMESHGUI_PatternWidget::SetPoints
+// purpose :
+//=================================================================================
+void SMESHGUI_PatternWidget::SetPoints( PointVector thePoints, QValueVector<int> theKeys, ConnectivityVector theConnections )
+{
+ myPoints = thePoints;
+ myKeys = theKeys;
+ myConnections = theConnections;
+
+ if (!thePoints.size())
+ return;
+
+ myMinU = myMaxU = (thePoints[0]).x;
+ myMinV = myMaxV = (thePoints[0]).y;
+ double x, y;
+
+ for (int i = 1; i < thePoints.size(); i++)
+ {
+ x = (thePoints[i]).x;
+ y = (thePoints[i]).y;
+
+ if ( myMinU > x )
+ myMinU = x;
+ if ( myMaxU < x)
+ myMaxU = x;
+ if ( myMinV > y )
+ myMinV = y;
+ if ( myMaxV < y)
+ myMaxV = y;
+ }
+
+ repaint();
+}
+
+static const int Shift = 4; // shift of the point number from point
+static const int Border = 20;
+
+//=================================================================================
+// function : SMESHGUI_PatternWidget::paintEvent
+// purpose :
+//=================================================================================
+void SMESHGUI_PatternWidget::paintEvent( QPaintEvent * )
+{
+ QPainter paint( this );
+ paint.setBrush (Qt::SolidPattern );
+
+ //Draw points
+ const int aRadius = 3; // radius of a point
+
+ for (int i = 0; i < myKeys.size() && i < myPoints.size(); i++)
+ {
+ SMESH::PointStruct aPoint = myPoints[ myKeys[i] ];
+ QPoint aQPnt = MapCoords( aPoint.x, aPoint.y);
+
+ paint.drawPie( aQPnt.x() - aRadius, aQPnt.y() - aRadius, aRadius*2, aRadius*2, 5760, 5760 );
+ paint.drawText( aQPnt.x() + Shift, aQPnt.y() - Shift, QString::number( i+1 ) );
+ }
+
+ //Draw lines
+ for (int i = 0; i < myConnections.size(); i++)
+ {
+ QValueVector<int> aCVector = myConnections[i];
+
+ if ( aCVector.size() == 0 )
+ continue;
+
+ SMESH::PointStruct aPoint = myPoints[ aCVector[0] ];
+ const QPoint aBeginPnt = MapCoords( aPoint.x, aPoint.y);
+ QPoint aFirstPnt = aBeginPnt, aSecondPnt;
+
+ for (int j = 1; j < aCVector.size(); j++)
+ {
+ aPoint = myPoints[ aCVector[j] ];
+ aSecondPnt = MapCoords( aPoint.x, aPoint.y);
+ paint.drawLine(aFirstPnt, aSecondPnt);
+ aFirstPnt = aSecondPnt;
+ }
+
+ paint.drawLine(aBeginPnt, aSecondPnt);
+ }
+}
+
+
+//=================================================================================
+// function : SMESHGUI_PatternWidget::MapCoords
+// purpose :
+//=================================================================================
+QPoint SMESHGUI_PatternWidget::MapCoords( const double u, const double v )
+{
+ int aWidth = width() - 2*Border;
+ int aHeight = height() - 2*Border;
+
+ double aUBound = myMaxU - myMinU;
+ double aVBound = myMaxV - myMinV;
+
+ double aUScale = aWidth/aUBound;
+ double aVScale = aHeight/aVBound;
+
+ double aScale;
+ aUScale <= aVScale ? aScale = aUScale : aScale = aVScale;
+
+ double aUMiddle = ( myMaxU + myMinU )/2;
+ double aVMiddle = ( myMaxV + myMinV )/2;
+
+ int x = int( aWidth/2 + (u - aUMiddle)*aScale + Border - Shift);
+
+ int y = int( aHeight/2 + (aVMiddle - v)*aScale + Border + Shift);
+
+ QPoint aPoint = QPoint(x, y);
+
+ return aPoint;
+}
