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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Charts module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <private/xydomain_p.h>
#include <private/qabstractaxis_p.h>
#include <QtCore/QtMath>
QT_CHARTS_BEGIN_NAMESPACE
XYDomain::XYDomain(QObject *parent)
: AbstractDomain(parent)
{
}
XYDomain::~XYDomain()
{
}
void XYDomain::setRange(qreal minX, qreal maxX, qreal minY, qreal maxY)
{
bool axisXChanged = false;
bool axisYChanged = false;
if (!qFuzzyCompare(m_minX, minX) || !qFuzzyCompare(m_maxX, maxX)) {
m_minX = minX;
m_maxX = maxX;
axisXChanged = true;
if(!m_signalsBlocked)
emit rangeHorizontalChanged(m_minX, m_maxX);
}
if (!qFuzzyCompare(m_minY, minY) || !qFuzzyCompare(m_maxY, maxY)) {
m_minY = minY;
m_maxY = maxY;
axisYChanged = true;
if(!m_signalsBlocked)
emit rangeVerticalChanged(m_minY, m_maxY);
}
if (axisXChanged || axisYChanged)
emit updated();
}
void XYDomain::zoomIn(const QRectF &rect)
{
storeZoomReset();
QRectF fixedRect = fixZoomRect(rect);
qreal dx = spanX() / m_size.width();
qreal dy = spanY() / m_size.height();
qreal maxX = m_maxX;
qreal minX = m_minX;
qreal minY = m_minY;
qreal maxY = m_maxY;
maxX = minX + dx * fixedRect.right();
minX = minX + dx * fixedRect.left();
minY = maxY - dy * fixedRect.bottom();
maxY = maxY - dy * fixedRect.top();
if ((maxX - minX) == spanX()) {
minX = m_minX;
maxX = m_maxX;
}
if ((maxY - minY) == spanY()) {
minY = m_minY;
maxY = m_maxY;
}
setRange(minX, maxX, minY, maxY);
}
void XYDomain::zoomOut(const QRectF &rect)
{
storeZoomReset();
QRectF fixedRect = fixZoomRect(rect);
qreal dx = spanX() / rect.width();
qreal dy = spanY() / rect.height();
qreal maxX = m_maxX;
qreal minX = m_minX;
qreal minY = m_minY;
qreal maxY = m_maxY;
minX = maxX - dx * fixedRect.right();
maxX = minX + dx * m_size.width();
maxY = minY + dy * fixedRect.bottom();
minY = maxY - dy * m_size.height();
if ((maxX - minX) == spanX()) {
minX = m_minX;
maxX = m_maxX;
}
if ((maxY - minY) == spanY()) {
minY = m_minY;
maxY = m_maxY;
}
setRange(minX, maxX, minY, maxY);
}
void XYDomain::move(qreal dx, qreal dy)
{
if (m_reverseX)
dx = -dx;
if (m_reverseY)
dy = -dy;
qreal x = spanX() / m_size.width();
qreal y = spanY() / m_size.height();
qreal maxX = m_maxX;
qreal minX = m_minX;
qreal minY = m_minY;
qreal maxY = m_maxY;
if (dx != 0) {
minX = minX + x * dx;
maxX = maxX + x * dx;
}
if (dy != 0) {
minY = minY + y * dy;
maxY = maxY + y * dy;
}
setRange(minX, maxX, minY, maxY);
}
QPointF XYDomain::calculateGeometryPoint(const QPointF &point, bool &ok) const
{
const qreal xd = m_maxX - m_minX;
const qreal yd = m_maxY - m_minY;
if (qFuzzyIsNull(xd) || qFuzzyIsNull(yd))
return QPointF();
const qreal deltaX = m_size.width() / xd;
const qreal deltaY = m_size.height() / yd;
qreal x = (point.x() - m_minX) * deltaX;
if (m_reverseX)
x = m_size.width() - x;
qreal y = (point.y() - m_minY) * deltaY;
if (!m_reverseY)
y = m_size.height() - y;
ok = true;
return QPointF(x, y);
}
QVector<QPointF> XYDomain::calculateGeometryPoints(const QVector<QPointF> &vector) const
{
const qreal xd = m_maxX - m_minX;
const qreal yd = m_maxY - m_minY;
if (qFuzzyIsNull(xd) || qFuzzyIsNull(yd))
return QVector<QPointF>();
const qreal deltaX = m_size.width() / xd;
const qreal deltaY = m_size.height() / yd;
QVector<QPointF> result;
result.resize(vector.count());
for (int i = 0; i < vector.count(); ++i) {
qreal x = (vector[i].x() - m_minX) * deltaX;
if (m_reverseX)
x = m_size.width() - x;
qreal y = (vector[i].y() - m_minY) * deltaY;
if (!m_reverseY)
y = m_size.height() - y;
result[i].setX(x);
result[i].setY(y);
}
return result;
}
QPointF XYDomain::calculateDomainPoint(const QPointF &point) const
{
const qreal xd = m_maxX - m_minX;
const qreal yd = m_maxY - m_minY;
if (qFuzzyIsNull(xd) || qFuzzyIsNull(yd))
return QPointF();
const qreal deltaX = m_size.width() / xd;
const qreal deltaY = m_size.height() / yd;
qreal x = m_reverseX ? (m_size.width() - point.x()) : point.x();
x /= deltaX;
x += m_minX;
qreal y = m_reverseY ? point.y() : (m_size.height() - point.y());
y /= deltaY;
y += m_minY;
return QPointF(x, y);
}
// operators
bool Q_AUTOTEST_EXPORT operator== (const XYDomain &domain1, const XYDomain &domain2)
{
return (qFuzzyCompare(domain1.m_maxX, domain2.m_maxX)
&& qFuzzyCompare(domain1.m_maxY, domain2.m_maxY)
&& qFuzzyCompare(domain1.m_minX, domain2.m_minX)
&& qFuzzyCompare(domain1.m_minY, domain2.m_minY));
}
bool Q_AUTOTEST_EXPORT operator!= (const XYDomain &domain1, const XYDomain &domain2)
{
return !(domain1 == domain2);
}
QDebug Q_AUTOTEST_EXPORT operator<<(QDebug dbg, const XYDomain &domain)
{
#ifdef QT_NO_TEXTSTREAM
Q_UNUSED(domain)
#else
dbg.nospace() << "AbstractDomain(" << domain.m_minX << ',' << domain.m_maxX << ',' << domain.m_minY << ',' << domain.m_maxY << ')' << domain.m_size;
#endif
return dbg.maybeSpace();
}
QT_CHARTS_END_NAMESPACE
#include "moc_xydomain_p.cpp"
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