ResInsight/ApplicationCode/UserInterface/RiuQwtPlotItemGroup.cpp

111 lines
4.1 KiB
C++

/////////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2018- Equinor ASA
//
// ResInsight is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// ResInsight 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 General Public License at <http://www.gnu.org/licenses/gpl.html>
// for more details.
//
/////////////////////////////////////////////////////////////////////////////////
#include "RiuQwtPlotItemGroup.h"
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
RiuQwtPlotItemGroup::RiuQwtPlotItemGroup()
{
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
RiuQwtPlotItemGroup::~RiuQwtPlotItemGroup()
{
this->detach();
for (QwtPlotItem* item : m_plotItems)
{
delete item;
}
for (QwtPlotItem* legendItem : m_legendItems)
{
delete legendItem;
}
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void RiuQwtPlotItemGroup::addPlotItem(QwtPlotItem* plotItem)
{
m_plotItems.push_back(plotItem);
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void RiuQwtPlotItemGroup::addLegendItem(QwtPlotItem* legendItem)
{
m_legendItems.push_back(legendItem);
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void RiuQwtPlotItemGroup::draw(QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect) const
{
for (const QwtPlotItem* item : m_plotItems)
{
item->draw(painter, xMap, yMap, canvasRect);
}
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
QRectF RiuQwtPlotItemGroup::boundingRect() const
{
QRectF totalBoundingRect;
for (const QwtPlotItem* item : m_plotItems)
{
totalBoundingRect = totalBoundingRect.united(item->boundingRect());
}
return totalBoundingRect;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
QwtGraphic RiuQwtPlotItemGroup::legendIcon(int index, const QSizeF& size) const
{
QwtGraphic graphic;
graphic.setDefaultSize(size);
QPainter painter(&graphic);
painter.setRenderHint(QPainter::Antialiasing,
testRenderHint(QwtPlotItem::RenderAntialiased));
for (QwtPlotItem* legendItem : m_legendItems)
{
QwtGraphic subGraphic = legendItem->legendIcon(index, legendItem->legendIconSize());
QRectF boundingRect = legendItem->boundingRect();
QImage subImage = subGraphic.toImage();
QRectF subRect(0.0, 0.0, legendItem->legendIconSize().width(), legendItem->legendIconSize().height());
// Symbols may not have a bounding width/height. Force the width height to be the same as the icon
boundingRect.setWidth(subRect.width());
boundingRect.setHeight(subRect.height());
// Paint onto the existing icon
painter.drawImage(boundingRect, subImage, subRect);
}
return graphic;
}