-// Copyright (C) 2007-2008 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2012 CEA/DEN, EDF R&D, OPEN CASCADE
//
-// Copyright (C) 2003-2007 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 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.
//
-// 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
//
-// 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.salome-platform.org/ or email : webmaster.salome@opencascade.com
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
+
// File : Plot2d.cxx
// Author : Vadim SANDLER, Open CASCADE S.A.S. (vadim.sandler@opencascade.com)
//
#include <QPainter>
+#include <qwt_plot.h>
+#include <qwt_plot_curve.h>
+
+const int MSIZE = 9;
+const int MAX_ATTEMPTS = 10; // max attempts
+
+// color tolerance (used to compare color values)
+const long COLOR_DISTANCE = 100;
+
+
+
+/*!
+ Constructor
+*/
+Plot2d_Point::Plot2d_Point()
+ : x( 0. ), y( 0. ), deviationPtr(0)
+{
+}
+
+/*!
+ Constructor
+*/
+Plot2d_Point::Plot2d_Point( double theX, double theY, const QString& theText )
+ : x( theX ), y( theY ), text( theText ), deviationPtr(0)
+{
+}
+
+/*!
+ Destructor.
+*/
+Plot2d_Point::~Plot2d_Point() {
+ clearDeviation();
+}
+
+/*!
+ Free memory allocated for the deviation data.
+*/
+void Plot2d_Point::clearDeviation() {
+ if(deviationPtr)
+ delete deviationPtr;
+ deviationPtr = 0;
+}
+
+/*!
+ Return true in case if deviation data is assigned to the point.
+*/
+bool Plot2d_Point::hasDeviation() const {
+ return !(deviationPtr == 0);
+}
+
+/*!
+ Assign deviation data to the point.
+*/
+void Plot2d_Point::setDeviation(double min, double max) {
+ clearDeviation();
+ deviationPtr = new double[2];
+ deviationPtr[0] = min;deviationPtr[1] = max;
+}
+
+/*!
+ Return true in case if deviation data is assigned to the point
+ and store deviation data in the input parameters.
+*/
+bool Plot2d_Point::deviation(double& min, double& max) const {
+ if(hasDeviation()) {
+ min = deviationPtr[0];
+ max = deviationPtr[1];
+ }
+ return false;
+}
+
+/*!
+ Return minimal deviation value.
+*/
+bool Plot2d_Point::minDeviation(double& min) const {
+ if(hasDeviation()) {
+ min = deviationPtr[0];
+ return true;
+ } else {
+ min = 0;
+ }
+ return false;
+}
+
+/*!
+ Return minimal deviation value.
+*/
+bool Plot2d_Point::maxDeviation(double& max) const {
+ if(hasDeviation()) {
+ max = deviationPtr[1];
+ return true;
+ } else {
+ max = 0;
+ }
+ return false;
+}
+
+
+
/*!
\brief Convert Plot2d marker type to Qwt marker type.
\param m Plot2d marker type
\param width line width
*/
void Plot2d::drawLine( QPainter* painter, const QPoint& p1, const QPoint& p2,
- Qt::PenStyle type, const QColor& color, int width )
+ Qt::PenStyle type, const QColor& color, int width )
{
painter->save();
QPen pen( type );
\param width line width
*/
void Plot2d::drawLine( QPainter* painter, const QPoint& p1, const QPoint& p2,
- Plot2d::LineType type, const QColor& color, int width )
+ Plot2d::LineType type, const QColor& color, int width )
{
drawLine( painter, p1, p2, plot2qwtLine( type ), color, width );
}
\param width line width
*/
void Plot2d::drawLine( QPainter* painter, int x1, int y1, int x2, int y2,
- Qt::PenStyle type, const QColor& color, int width )
+ Qt::PenStyle type, const QColor& color, int width )
{
drawLine( painter, QPoint( x1, y1 ), QPoint( x2, y2 ), type, color, width );
}
\param width line width
*/
void Plot2d::drawLine( QPainter* painter, int x1, int y1, int x2, int y2,
- Plot2d::LineType type, const QColor& color, int width )
+ Plot2d::LineType type, const QColor& color, int width )
{
drawLine( painter, QPoint( x1, y1 ), QPoint( x2, y2 ),
- plot2qwtLine( type), color, width );
+ plot2qwtLine( type), color, width );
}
/*!
\param color marker color
*/
void Plot2d::drawMarker( QPainter* painter, const QPoint& p, const QRect& r,
- QwtSymbol::Style type, const QColor& color )
+ QwtSymbol::Style type, const QColor& color )
{
painter->save();
painter->setPen( color );
\param color marker color
*/
void Plot2d::drawMarker( QPainter* painter, const QPoint& p, const QRect& r,
- Plot2d::MarkerType type, const QColor& color )
+ Plot2d::MarkerType type, const QColor& color )
{
drawMarker( painter, p, r, plot2qwtMarker( type ), color );
}
\param color marker color
*/
void Plot2d::drawMarker( QPainter* painter, int x, int y, int w, int h,
- QwtSymbol::Style type, const QColor& color )
+ QwtSymbol::Style type, const QColor& color )
{
drawMarker( painter, QPoint( x, y ), QRect( 0, 0, w, h ), type, color );
}
\param color marker color
*/
void Plot2d::drawMarker( QPainter* painter, int x, int y, int w, int h,
- Plot2d::MarkerType type, const QColor& color )
+ Plot2d::MarkerType type, const QColor& color )
{
drawMarker( painter, QPoint( x, y ), QRect( 0, 0, w, h ), plot2qwtMarker( type ), color );
}
+
+
+/*!
+ \brief Create icon pixmap according to the marker type.
+ \param size icon size
+ \param type marker type
+ \param color icon color
+ \return icon
+*/
+QPixmap Plot2d::markerIcon(const QSize &size, const QColor& color, Plot2d::MarkerType type )
+{
+
+ QPixmap px( size );
+ px.fill( QColor( 255, 255, 255, 0 ) );
+ QPainter p( &px );
+ Plot2d::drawMarker( &p, size.width()/2, size.height()/2, MSIZE, MSIZE, type, color );
+ return px;
+}
+
+
+/*!
+ \brief Create icon pixmap according to the line type.
+ \param size icon size
+ \param type line type
+ \param color icon color
+ \return icon
+*/
+QPixmap Plot2d::lineIcon( const QSize& size, const QColor& color, Plot2d::LineType type )
+{
+
+ QPixmap px( size );
+ px.fill( QColor( 255, 255, 255, 0 ) );
+ QPainter p( &px );
+ drawLine( &p, 5, size.height()/2, size.width()-5, size.height()/2, type,
+ color, 1 );
+ return px;
+}
+
+/*!
+ Gets new unique marker for item if possible
+*/
+void Plot2d::getNextMarker( const int rtti, const QwtPlot* thePlot, QwtSymbol::Style& typeMarker,
+ QColor& color, Qt::PenStyle& typeLine )
+{
+ bool bOk = false;
+ int cnt = 0;
+ while ( !bOk ) {
+ int aRed = (int)( 256.0 * rand() / RAND_MAX ); // generate random color
+ int aGreen = (int)( 256.0 * rand() / RAND_MAX ); // ...
+ int aBlue = (int)( 256.0 * rand() / RAND_MAX ); // ...
+ int aMarker = (int)( 9.0 * rand() / RAND_MAX ) + 1;// 9 markers types( not including empty )
+ int aLine = (int)( 5.0 * rand() / RAND_MAX ) + 1;// 5 line types ( not including empty )
+
+ typeMarker = ( QwtSymbol::Style )aMarker;
+ color = QColor( aRed, aGreen, aBlue );
+ typeLine = ( Qt::PenStyle )aLine;
+
+ bOk = ( ++cnt == MAX_ATTEMPTS ) || !existMarker( rtti, thePlot, typeMarker, color, typeLine );
+ }
+}
+
+/*!
+ Checks if marker belongs to any enitity
+*/
+bool Plot2d::existMarker( const int rtti, const QwtPlot* thePlot, const QwtSymbol::Style typeMarker,
+ const QColor& color, const Qt::PenStyle typeLine )
+{
+ bool ok = false;
+
+ QColor bgColor = thePlot->palette().color( QPalette::Background );
+ if ( closeColors( color, bgColor ) ) {
+ ok = true;
+ }
+ else {
+ QwtPlotItemList anItems = thePlot->itemList();
+ QwtPlotItemIterator anIt = anItems.begin(), aLast = anItems.end();
+ QwtPlotItem* anItem;
+ for ( ; anIt != aLast && !ok; anIt++ ) {
+ anItem = *anIt;
+ if ( anItem && anItem->rtti() == rtti ) {
+ QwtPlotCurve* crv = dynamic_cast<QwtPlotCurve*>( anItem );
+ if ( crv ) {
+ QwtSymbol::Style aStyle = crv->symbol().style();
+ QColor aColor = crv->pen().color();
+ Qt::PenStyle aLine = crv->pen().style();
+ ok = closeColors( aColor, color ) && aStyle == typeMarker && aLine == typeLine;
+ }
+ }
+ }
+ }
+ return ok;
+}
+
+/*!
+ Checks if two colors are close to each other
+ uses COLOR_DISTANCE variable as max tolerance for comparing of colors
+*/
+
+bool Plot2d::closeColors( const QColor& color1,
+ const QColor& color2,
+ int distance )
+{
+ long tol =
+ qAbs( color2.red() - color1.red() ) +
+ qAbs( color2.green() - color1.green() ) +
+ qAbs( color2.blue() - color1.blue() ) -
+ ( distance < 0 ? COLOR_DISTANCE : distance );
+
+ return tol <= 0;
+}
