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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the QtDataVisualization module.
**
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
**
****************************************************************************/
#include "highlightseries.h"
#include <QDebug>
using namespace QtDataVisualization;
HighlightSeries::HighlightSeries()
: m_width(100),
m_height(100)
{
setDrawMode(QSurface3DSeries::DrawSurface);
setFlatShadingEnabled(true);
setVisible(false);
}
HighlightSeries::~HighlightSeries()
{
}
void HighlightSeries::setTopographicSeries(TopographicSeries *series)
{
m_topographicSeries = series;
m_srcWidth = m_topographicSeries->dataProxy()->array()->at(0)->size();
m_srcHeight = m_topographicSeries->dataProxy()->array()->size();
QObject::connect(m_topographicSeries, &QSurface3DSeries::selectedPointChanged,
this, &HighlightSeries::handlePositionChange);
}
void HighlightSeries::handlePositionChange(const QPoint &position)
{
m_position = position;
if (position == invalidSelectionPosition()) {
setVisible(false);
return;
}
int halfWidth = m_width / 2;
int halfHeight = m_height / 2;
int startX = position.y() - halfWidth;
if (startX < 0 )
startX = 0;
int endX = position.y() + halfWidth;
if (endX > (m_srcWidth - 1))
endX = m_srcWidth - 1;
int startZ = position.x() - halfHeight;
if (startZ < 0 )
startZ = 0;
int endZ = position.x() + halfHeight;
if (endZ > (m_srcHeight - 1))
endZ = m_srcHeight - 1;
QSurfaceDataProxy *srcProxy = m_topographicSeries->dataProxy();
const QSurfaceDataArray &srcArray = *srcProxy->array();
QSurfaceDataArray *dataArray = new QSurfaceDataArray;
dataArray->reserve(endZ - startZ);
for (int i = startZ; i < endZ; i++) {
QSurfaceDataRow *newRow = new QSurfaceDataRow(endX - startX);
QSurfaceDataRow *srcRow = srcArray.at(i);
for (int j = startX, p = 0; j < endX; j++, p++) {
QVector3D pos = srcRow->at(j).position();
(*newRow)[p].setPosition(QVector3D(pos.x(), pos.y() + 0.1f, pos.z()));
}
*dataArray << newRow;
}
dataProxy()->resetArray(dataArray);
setVisible(true);
}
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