1 // Copyright (C) 2007-2011 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 // SMESH SMESHGUI : GUI for SMESH component
24 // File : SMESHGUI_PatternWidget.cxx
25 // Author : Michael ZORIN, Open CASCADE S.A.S.
28 #include "SMESHGUI_PatternWidget.h"
33 const int Shift = 4; // shift of the point number from point
34 const int Border = 20; // border size
35 const int Radius = 3; // radius of a point
37 //=================================================================================
38 // class : SMESHGUI_PatternWidget()
40 //=================================================================================
41 SMESHGUI_PatternWidget::SMESHGUI_PatternWidget( QWidget* parent )
44 myMinU = myMinV = myMaxU = myMaxV = 0;
45 setMinimumHeight( 150 );
48 //=================================================================================
49 // function : ~SMESHGUI_PatternWidget()
51 //=================================================================================
52 SMESHGUI_PatternWidget::~SMESHGUI_PatternWidget()
56 //=================================================================================
57 // function : SetPoints()
59 //=================================================================================
60 void SMESHGUI_PatternWidget::SetPoints( const PointVector& thePoints,
61 const QVector<int>& theKeys,
62 const ConnectivityVector& theConnections )
66 myConnections = theConnections;
68 if ( myPoints.isEmpty() )
71 myMinU = myMaxU = myPoints[0].x;
72 myMinV = myMaxV = myPoints[0].y;
74 for ( int i = 1; i < myPoints.size(); i++ ) {
75 myMinU = qMin( myPoints[i].x, myMinU );
76 myMaxU = qMax( myPoints[i].x, myMaxU );
77 myMinV = qMin( myPoints[i].y, myMinV );
78 myMaxV = qMax( myPoints[i].y, myMaxV );
84 //=================================================================================
85 // function : paintEvent()
87 //=================================================================================
88 void SMESHGUI_PatternWidget::paintEvent( QPaintEvent* )
90 QPainter painter( this );
91 painter.setBrush( Qt::SolidPattern );
94 for ( int i = 0; i < myKeys.size() && i < myPoints.size(); i++ ) {
95 SMESH::PointStruct aPoint = myPoints[ myKeys[i] ];
96 QPoint aQPnt = mapCoords( aPoint.x, aPoint.y );
98 painter.drawPie( aQPnt.x() - Radius, aQPnt.y() - Radius,
99 Radius * 2, Radius * 2, 0, 360 * 16 );
100 painter.drawText( aQPnt.x() + Shift, aQPnt.y() - Shift,
101 QString::number( i+1 ) );
105 for ( int i = 0; i < myConnections.size(); i++ ) {
106 QVector<int> aCVector = myConnections[i];
108 if ( aCVector.isEmpty() )
111 SMESH::PointStruct aPoint = myPoints[ aCVector[0] ];
112 const QPoint aBeginPnt = mapCoords( aPoint.x, aPoint.y );
113 QPoint aFirstPnt = aBeginPnt, aSecondPnt;
115 for ( int j = 1; j < aCVector.size(); j++ ) {
116 aPoint = myPoints[ aCVector[j] ];
117 aSecondPnt = mapCoords( aPoint.x, aPoint.y );
118 painter.drawLine( aFirstPnt, aSecondPnt );
119 aFirstPnt = aSecondPnt;
122 painter.drawLine( aBeginPnt, aSecondPnt );
126 //=================================================================================
127 // function : mapCoords()
129 //=================================================================================
130 QPoint SMESHGUI_PatternWidget::mapCoords( const double u, const double v )
132 int aWidth = width() - 2 * Border;
133 int aHeight = height() - 2 * Border;
135 double aUBound = myMaxU - myMinU;
136 double aVBound = myMaxV - myMinV;
138 double aUScale = aWidth / aUBound;
139 double aVScale = aHeight / aVBound;
142 aUScale <= aVScale ? aScale = aUScale : aScale = aVScale;
144 double aUMiddle = ( myMaxU + myMinU ) / 2;
145 double aVMiddle = ( myMaxV + myMinV ) / 2;
147 int x = int( aWidth / 2 + ( u - aUMiddle ) * aScale + Border - Shift );
149 int y = int( aHeight / 2 + ( aVMiddle - v ) * aScale + Border + Shift );
151 return QPoint( x, y );