116 lines
4.2 KiB
C++
116 lines
4.2 KiB
C++
|
/****************************************************************************
|
||
|
|
** Copyright (C) 2001-2011 Klaralvdalens Datakonsult AB. All rights reserved.
|
||
|
|
**
|
||
|
|
** This file is part of the KD Chart library.
|
||
|
|
**
|
||
|
|
** Licensees holding valid commercial KD Chart licenses may use this file in
|
||
|
|
** accordance with the KD Chart Commercial License Agreement provided with
|
||
|
|
** the Software.
|
||
|
|
**
|
||
|
|
**
|
||
|
|
** This file may be distributed and/or modified under the terms of the
|
||
|
|
** GNU General Public License version 2 and version 3 as published by the
|
||
|
|
** Free Software Foundation and appearing in the file LICENSE.GPL.txt included.
|
||
|
|
**
|
||
|
|
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
|
||
|
|
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
||
|
|
**
|
||
|
|
** Contact info@kdab.com if any conditions of this licensing are not
|
||
|
|
** clear to you.
|
||
|
|
**
|
||
|
|
**********************************************************************/
|
||
|
|
|
||
|
|
#include "KDChartPolarGrid.h"
|
||
|
|
#include "KDChartPaintContext.h"
|
||
|
|
#include "KDChartPolarDiagram.h"
|
||
|
|
#include "KDChartPieDiagram.h"
|
||
|
|
#include "KDChartPrintingParameters.h"
|
||
|
|
|
||
|
|
#include <QPainter>
|
||
|
|
|
||
|
|
#include <KDABLibFakes>
|
||
|
|
|
||
|
|
using namespace KDChart;
|
||
|
|
|
||
|
|
|
||
|
|
DataDimensionsList PolarGrid::calculateGrid(
|
||
|
|
const DataDimensionsList& rawDataDimensions ) const
|
||
|
|
{
|
||
|
|
qDebug("Calling PolarGrid::calculateGrid()");
|
||
|
|
DataDimensionsList l;
|
||
|
|
|
||
|
|
//FIXME(khz): do the real calculation
|
||
|
|
|
||
|
|
l = rawDataDimensions;
|
||
|
|
|
||
|
|
return l;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void PolarGrid::drawGrid( PaintContext* context )
|
||
|
|
{
|
||
|
|
// if ( d->coordinateTransformations.size () <= 0 ) return;
|
||
|
|
|
||
|
|
PolarCoordinatePlane* plane = dynamic_cast<PolarCoordinatePlane*>(context->coordinatePlane());
|
||
|
|
Q_ASSERT_X ( plane, "PolarGrid::drawGrid",
|
||
|
|
"Bad function call: PaintContext::coodinatePlane() NOT a polar plane." );
|
||
|
|
|
||
|
|
const GridAttributes gridAttrsCircular( plane->gridAttributes( true ) );
|
||
|
|
const GridAttributes gridAttrsSagittal( plane->gridAttributes( false ) );
|
||
|
|
|
||
|
|
//qDebug() << "OK:";
|
||
|
|
if ( !gridAttrsCircular.isGridVisible() && !gridAttrsSagittal.isGridVisible() ) return;
|
||
|
|
//qDebug() << "A";
|
||
|
|
|
||
|
|
// FIXME: we paint the rulers to the settings of the first diagram for now:
|
||
|
|
AbstractPolarDiagram* dgr = dynamic_cast<AbstractPolarDiagram*> (plane->diagrams().first() );
|
||
|
|
Q_ASSERT ( dgr ); // only polar diagrams are allowed here
|
||
|
|
|
||
|
|
|
||
|
|
// Do not draw a grid for pie diagrams
|
||
|
|
if( dynamic_cast<PieDiagram*> (plane->diagrams().first() ) ) return;
|
||
|
|
|
||
|
|
|
||
|
|
context->painter()->setPen ( PrintingParameters::scalePen( QColor ( Qt::lightGray ) ) );
|
||
|
|
const double min = dgr->dataBoundaries().first.y();
|
||
|
|
QPointF origin = plane->translate( QPointF( min, 0 ) ) + context->rectangle().topLeft();
|
||
|
|
//qDebug() << "origin" << origin;
|
||
|
|
|
||
|
|
const double r = qAbs( min ) + dgr->dataBoundaries().second.y(); // use the full extents
|
||
|
|
|
||
|
|
if ( gridAttrsSagittal.isGridVisible() ){
|
||
|
|
const int numberOfSpokes = ( int ) ( 360 / plane->angleUnit() );
|
||
|
|
for ( int i = 0; i < numberOfSpokes ; ++i ) {
|
||
|
|
context->painter()->drawLine( origin, plane->translate( QPointF( r - qAbs( min ), i ) ) + context->rectangle().topLeft() );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( gridAttrsCircular.isGridVisible() )
|
||
|
|
{
|
||
|
|
const qreal startPos = plane->startPosition();
|
||
|
|
plane->setStartPosition( 0.0 );
|
||
|
|
const int numberOfGridRings = ( int )dgr->numberOfGridRings();
|
||
|
|
for ( int j = 0; j < numberOfGridRings; ++j ) {
|
||
|
|
const double rad = min - ( ( j + 1) * r / numberOfGridRings );
|
||
|
|
|
||
|
|
if ( rad == 0 )
|
||
|
|
continue;
|
||
|
|
|
||
|
|
QRectF rect;
|
||
|
|
QPointF topLeftPoint;
|
||
|
|
QPointF bottomRightPoint;
|
||
|
|
|
||
|
|
topLeftPoint = plane->translate( QPointF( rad, 0 ) );
|
||
|
|
topLeftPoint.setX( plane->translate( QPointF( rad, 90 / plane->angleUnit() ) ).x() );
|
||
|
|
bottomRightPoint = plane->translate( QPointF( rad, 180 / plane->angleUnit() ) );
|
||
|
|
bottomRightPoint.setX( plane->translate( QPointF( rad, 270 / plane->angleUnit() ) ).x() );
|
||
|
|
|
||
|
|
rect.setTopLeft( topLeftPoint + context->rectangle().topLeft() );
|
||
|
|
rect.setBottomRight( bottomRightPoint + context->rectangle().topLeft() );
|
||
|
|
|
||
|
|
context->painter()->drawEllipse( rect );
|
||
|
|
}
|
||
|
|
plane->setStartPosition( startPos );
|
||
|
|
}
|
||
|
|
}
|