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afutrainer/plotwidget.cpp

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/***************************************************************************
* Copyright (C) 2003-2007 by Oliver Saal *
* osaal@gmx.de *
* http://www.oliver-saal.de/software/afutrainer/ *
* *
* This program 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 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "plotwidget.h"
#include <qpainter.h>
void CPlotWidgetPoint::clear()
{
}
void CPlotWidgetCurve::clear()
{
QList<CPlotWidgetPoint>::clear();
}
QRectF CPlotWidgetCurve::boundaries() const
{
QRectF rect;
for (int i=0; i<size(); i++)
{
QPointF p = at(i);
if (i == 0)
{
rect.setBottomLeft(p);
rect.setTopRight(p);
}
else
{
if (p.x() < rect.left())
rect.setLeft(p.x());
else if (p.x() > rect.right())
rect.setRight(p.x());
if (p.y() > rect.bottom())
rect.setBottom(p.y());
else if (p.y() < rect.top())
rect.setTop(p.y());
}
}
return rect;
}
CPlotWidgetTic::CPlotWidgetTic(const double dPos, const QString& strText)
{
clear();
m_dPos = dPos;
m_strText = strText;
}
CPlotWidgetTic::CPlotWidgetTic(const double dPos, const double dWidth, const QString& strText)
{
clear();
m_dPos = dPos;
m_dWidth = dWidth;
m_strText = strText;
}
CPlotWidgetTic::CPlotWidgetTic(const double dPos, const QPixmap& pixmap)
{
clear();
m_dPos = dPos;
m_pixmap = pixmap;
}
void CPlotWidgetTic::clear()
{
m_dPos = 0.0;
m_dWidth = 0.0;
m_pen = QPen(Qt::DashLine);
m_pen.setColor(Qt::darkGray);
m_penFont = QPen(Qt::black);
m_pixmap = QPixmap();
m_strText.clear();
m_fillType = FillNone;
m_lineType = LinePlot;
m_iTextFlags = Qt::AlignHCenter | Qt::AlignTop;
}
void CPlotWidgetTic::paintX (QPainter *pPainter, CPlotWidget *pWidget) const
{
QPoint ptTL, ptBR; // TopLeft, BottomRight
QRect rectText;
if (m_fillType != FillNone && m_dWidth > 0.0)
{
ptTL = pWidget->mapToPlot(QPointF(m_dPos, pWidget->m_rectData.top()));
ptBR = pWidget->mapToPlot(QPointF(m_dPos+m_dWidth, pWidget->m_rectData.bottom()));
if (m_fillType == FillAll)
{
ptTL.setY(pWidget->m_rectPlot.top());
ptBR.setY(pWidget->m_rectPlot.bottom());
}
if (ptTL.x() < pWidget->m_rectPlot.left())
ptTL.setX(pWidget->m_rectPlot.left());
if (ptBR.x() > pWidget->m_rectPlot.right())
ptBR.setX(pWidget->m_rectPlot.right());
pPainter->fillRect(QRect(ptTL, ptBR), m_brush);
rectText = QRect(
QPoint(ptTL.x(), pWidget->m_rectPlot.bottom() + 5),
QPoint(ptBR.x(), pWidget->rect().bottom()));
}
else
{
rectText = QRect();
}
if (m_lineType != LineNone)
{
pPainter->setPen(m_pen);
pPainter->drawLine(
pWidget->mapToPlot(QPointF(m_dPos, pWidget->m_rectData.top())),
pWidget->mapToPlot(QPointF(m_dPos, pWidget->m_rectData.bottom())));
}
if (!m_strText.isEmpty())
{
pPainter->setPen(m_penFont);
pPainter->drawText(rectText, m_iTextFlags, m_strText);
}
}
void CPlotWidgetTic::paintY (QPainter *pPainter, CPlotWidget *pWidget) const
{
QPoint ptTL, ptBR; // TopLeft, BottomRight
QRect rectText;
if (m_fillType != FillNone && m_dWidth > 0.0)
{
ptTL = pWidget->mapToPlot(QPointF(pWidget->m_rectData.left(), m_dPos));
ptBR = pWidget->mapToPlot(QPointF(pWidget->m_rectData.right(), m_dPos+m_dWidth));
if (m_fillType == FillAll)
{
ptTL.setX(pWidget->m_rectPlot.left());
ptBR.setX(pWidget->m_rectPlot.right());
}
if (ptTL.y() < pWidget->m_rectPlot.top())
ptTL.setY(pWidget->m_rectPlot.top());
if (ptBR.y() > pWidget->m_rectPlot.bottom())
ptBR.setY(pWidget->m_rectPlot.bottom());
pPainter->fillRect(QRect(ptTL, ptBR), m_brush);
rectText = QRect(
QPoint(3, ptTL.y()),
QPoint(pWidget->m_rectPlot.left()-3, ptBR.y()));
}
else
{
QFontMetrics fm(m_font);
QPoint pt = pWidget->mapToPlot(QPointF(pWidget->m_rectData.left(), m_dPos));
rectText = QRect(
QPoint(3, pt.y()-fm.height()),
QPoint(pWidget->m_rectPlot.left()-3, pt.y()+fm.height()));
}
if (m_lineType != LineNone)
{
pPainter->setPen(m_pen);
pPainter->drawLine(
pWidget->mapToPlot(QPointF(pWidget->m_rectData.left(), m_dPos)),
pWidget->mapToPlot(QPointF(pWidget->m_rectData.right(), m_dPos)));
}
if (!m_pixmap.isNull())
{
// Ziel-Mittelpunkt errechnen
QPoint pt = pWidget->mapToPlot(QPointF(0, m_dPos));
pt.setX(pWidget->m_rectPlot.left() - m_pixmap.width()/2 - 5);
// Linke obere Ecke errechnen und malen!
pt -= QPoint (m_pixmap.width()/2, m_pixmap.height()/2);
pPainter->drawPixmap(pt, m_pixmap);
}
if (!m_strText.isEmpty())
{
pPainter->setPen(m_penFont);
pPainter->drawText(rectText, m_iTextFlags, m_strText);
}
}
CPlotWidget::CPlotWidget(QWidget *pParent) : QFrame(pParent)
{
clear();
}
void CPlotWidget::clear()
{
m_type = PlotLines;
m_bLimitAutoY = true;
m_bLimitAutoX = true;
m_dLimitXMin = 0.0;
m_dLimitXMax = 10.0;
m_dLimitYMin = 0.0;
m_dLimitYMax = 10.0;
m_dLimitXRound = 0.0;
m_dLimitYRound = 0.0;
m_dTicX = 0.0;
m_penTicX = QPen(Qt::DashLine);
m_penTicX.setColor(Qt::darkGray);
m_dTicY = 0.0;
m_penTicY = QPen(Qt::DashLine);
m_penTicY.setColor(Qt::darkGray);
m_iBorder = BorderLeft|BorderBottom;
m_iBorderDistTop = 5;
m_iBorderDistBottom = 5;
m_iBorderDistLeft = 5;
m_iBorderDistRight = 5;
m_brushPlotBkg = QBrush(Qt::white);
m_listTicX.clear();
m_listTicY.clear();
m_dBarWidth = 0.6;
m_dBarOffset = 0.0;
m_listCurves.clear();
}
void CPlotWidget::setBorderDistance(const int iLeft, const int iRight, const int iTop, const int iBottom)
{
m_iBorderDistTop = iTop;
m_iBorderDistBottom = iBottom;
m_iBorderDistLeft = iLeft;
m_iBorderDistRight = iRight;
}
void CPlotWidget::updateCache()
{
m_rectPlot = plotArea();
m_rectData = rectData();
}
QRect CPlotWidget::plotArea() const
{
QRect rect = frameRect();
rect.adjust(m_iBorderDistLeft, m_iBorderDistTop, -m_iBorderDistRight, -m_iBorderDistBottom);
return rect;
}
QRectF CPlotWidget::rectData() const
{
QRectF rect;
if (m_bLimitAutoX || m_bLimitAutoY)
{
for (int i=0; i<m_listCurves.size(); i++)
{
rect = rect.united(m_listCurves.at(i).boundaries());
}
}
if (!m_bLimitAutoX)
{
rect.setLeft(m_dLimitXMin);
rect.setRight(m_dLimitXMax);
}
else if (m_dLimitXRound > 0.0)
{
rect.setLeft((unsigned)(rect.left() / m_dLimitXRound) * m_dLimitXRound);
rect.setRight((unsigned)(rect.right() / m_dLimitXRound + 1) * m_dLimitXRound);
}
if (!m_bLimitAutoY)
{
rect.setTop(m_dLimitYMin);
rect.setBottom(m_dLimitYMax);
}
else if (m_dLimitYRound > 0.0)
{
rect.setTop((unsigned)(rect.top() / m_dLimitYRound) * m_dLimitYRound);
rect.setBottom((unsigned)(rect.bottom() / m_dLimitYRound + 1) * m_dLimitYRound);
}
return rect;
}
QPoint CPlotWidget::mapToPlot (QPointF p)
{
QPointF ret;
double m;
// Umrechung X-Koordinate
m = ((double) (m_rectPlot.left() - m_rectPlot.right())) / (m_rectData.left() - m_rectData.right());
ret.setX(m * (p.x() - m_rectData.left()) + m_rectPlot.left());
// Umrechnung Y-Koordinate (mit Spiegelung)
m = ((double) (m_rectPlot.bottom() - m_rectPlot.top())) / (m_rectData.top() - m_rectData.bottom());
ret.setY(m * (p.y() - m_rectData.top()) + m_rectPlot.bottom());
return ret.toPoint();
}
void CPlotWidget::paintEvent (QPaintEvent *e)
{
QList<QPoint> listPoints;
QList<CPlotWidgetTic> listTicsX, listTicsY;
double d=0.0;
int i=0;
QFrame::paintEvent(e);
QPainter painter(this);
updateCache();
// Draw Background
if (m_brushPlotBkg.style() != Qt::NoBrush)
{
painter.fillRect(m_rectPlot, m_brushPlotBkg);
}
// Draw Tics
listTicsX = m_listTicX;
if (listTicsX.isEmpty() && m_dTicX > 0.0)
{
d = ((unsigned)(m_rectData.left() / m_dTicX)) * m_dTicX;
if (d < m_rectData.left()) d+=m_dTicX;
while (d <= m_rectData.right())
{
CPlotWidgetTic tic(d, QString("%1").arg(d,0,'f',2));
tic.setPen(m_penTicX);
listTicsX.append(tic);
d += m_dTicX;
}
}
listTicsY = m_listTicY;
if (listTicsY.isEmpty() && m_dTicY > 0.0)
{
d = ((unsigned)(m_rectData.top() / m_dTicY)) * m_dTicY;
if (d < m_rectData.top()) d+=m_dTicY;
while (d <= m_rectData.bottom())
{
CPlotWidgetTic tic(d, QString("%1").arg(d,0,'f',2));
tic.setPen(m_penTicY);
listTicsY.append(tic);
d += m_dTicY;
}
}
for (i=0; i<listTicsX.size(); i++)
listTicsX.at(i).paintX(&painter, this);
for (i=0; i<listTicsY.size(); i++)
listTicsY.at(i).paintY(&painter, this);
// Draw Curves
if (m_type == PlotLines)
{
for (int i=0; i<m_listCurves.size(); i++)
{
CPlotWidgetCurve c = m_listCurves.at(i);
for (int j=0; j<c.size(); j++)
{
CPlotWidgetPoint p = c.at(j);
listPoints.append(mapToPlot (p));
}
painter.setPen(c.pen());
painter.drawPolyline(listPoints.toVector());
}
}
else if (m_type == PlotBarsSum && m_listCurves.size() != 0)
{
CPlotWidgetCurve c1 = m_listCurves.at(0);
//painter.setPen(c1.pen());
//painter.setBrush(c1.brush());
QPoint ptTL, ptBR;
for (int j=0; j<c1.size(); j++)
{ // Alle Punkte der ersten Kurve durchgehen
CPlotWidgetPoint p1 = c1.at(j);
ptTL = mapToPlot(QPointF(p1.x() + m_dBarOffset - m_dBarWidth/2, p1.y()));
ptBR = mapToPlot(QPointF(p1.x() + m_dBarOffset + m_dBarWidth/2, m_rectData.top()));
if (p1.y() != 0.0 && m_rectPlot.contains(ptTL) && m_rectPlot.contains(ptBR))
painter.fillRect(QRect(ptTL, ptBR), c1.brush());
double dStart = p1.y();
for (int i=1; i<m_listCurves.size(); i++)
{ // alle Weiteren Kurven durchgehen
CPlotWidgetCurve c2 = m_listCurves.at(i);
for (int jj=0; jj<c2.size(); jj++)
{ // alle Punkte der zweiten Kurve durchgehen
CPlotWidgetPoint p2 = c2.at(jj);
if (p2.x() != p1.x()) continue;
ptTL = mapToPlot(QPointF(p2.x() + m_dBarOffset - m_dBarWidth/2, dStart+p2.y()));
ptBR = mapToPlot(QPointF(p2.x() + m_dBarOffset + m_dBarWidth/2, dStart+m_rectData.top()));
if (p2.y() != 0 && m_rectPlot.contains(ptTL) && m_rectPlot.contains(ptBR))
{
dStart += p2.y();
painter.fillRect(QRect(ptTL, ptBR), c2.brush());
}
}
}
}
}
// Draw border
painter.setPen(m_penBorder);
if (m_iBorder & BorderLeft)
painter.drawLine(m_rectPlot.topLeft(), m_rectPlot.bottomLeft());
if (m_iBorder & BorderRight)
painter.drawLine(m_rectPlot.topRight(), m_rectPlot.bottomRight());
if (m_iBorder & BorderTop)
painter.drawLine(m_rectPlot.topRight(), m_rectPlot.topLeft());
if (m_iBorder & BorderBottom)
painter.drawLine(m_rectPlot.bottomRight(), m_rectPlot.bottomLeft());
}
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