domain.cpp
205 lines
| 4.8 KiB
| text/x-c
|
CppLexer
/ src / domain.cpp
Jani Honkonen
|
r794 | /**************************************************************************** | ||
| ** | ||||
| ** Copyright (C) 2012 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 Qt Commercial Charts Add-on. | ||||
| ** | ||||
| ** $QT_BEGIN_LICENSE$ | ||||
| ** Licensees holding valid Qt Commercial licenses may use this file in | ||||
| ** accordance with the Qt Commercial 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 | ||||
| ** $QT_END_LICENSE$ | ||||
| ** | ||||
| ****************************************************************************/ | ||||
Michal Klocek
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r131 | #include "domain_p.h" | ||
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r1698 | #include "qabstractaxis_p.h" | ||
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r131 | |||
| QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
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r2097 | Domain::Domain(QObject* parent) | ||
| : QObject(parent), | ||||
| m_minX(0), | ||||
| m_maxX(0), | ||||
| m_minY(0), | ||||
| m_maxY(0) | ||||
|
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r131 | { | ||
| } | ||||
| Domain::~Domain() | ||||
| { | ||||
| } | ||||
|
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r439 | void Domain::setRange(qreal minX, qreal maxX, qreal minY, qreal maxY) | ||
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r678 | { | ||
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r1078 | bool axisXChanged = false; | ||
| bool axisYChanged = false; | ||||
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r439 | |||
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r768 | if (!qFuzzyIsNull(m_minX - minX) || !qFuzzyIsNull(m_maxX - maxX)) { | ||
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Jani Honkonen
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r2097 | m_minX = minX; | ||
| m_maxX = maxX; | ||||
| axisXChanged = true; | ||||
| emit rangeXChanged(m_minX, m_maxX); | ||||
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Michal Klocek
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r678 | } | ||
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r768 | if (!qFuzzyIsNull(m_minY - minY) || !qFuzzyIsNull(m_maxY - maxY)) { | ||
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Jani Honkonen
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r2097 | m_minY = minY; | ||
| m_maxY = maxY; | ||||
| axisYChanged = true; | ||||
| emit rangeYChanged(m_minY, m_maxY); | ||||
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Michal Klocek
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r678 | } | ||
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Jani Honkonen
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r2097 | if (axisXChanged || axisYChanged) | ||
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Michal Klocek
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r1698 | emit updated(); | ||
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Michal Klocek
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r439 | } | ||
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r678 | |||
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r439 | void Domain::setRangeX(qreal min, qreal max) | ||
| { | ||||
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Jani Honkonen
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r2097 | setRange(min, max, m_minY, m_maxY); | ||
|
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r439 | } | ||
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r679 | |||
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r439 | void Domain::setRangeY(qreal min, qreal max) | ||
| { | ||||
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r678 | setRange(m_minX, m_maxX, min, max); | ||
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r439 | } | ||
| void Domain::setMinX(qreal min) | ||||
| { | ||||
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r678 | setRange(min, m_maxX, m_minY, m_maxY); | ||
|
Michal Klocek
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r439 | } | ||
| void Domain::setMaxX(qreal max) | ||||
| { | ||||
|
Michal Klocek
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r678 | setRange(m_minX, max, m_minY, m_maxY); | ||
|
Michal Klocek
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r439 | } | ||
| void Domain::setMinY(qreal min) | ||||
| { | ||||
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Michal Klocek
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r678 | setRange(m_minX, m_maxX, min, m_maxY); | ||
|
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r439 | } | ||
| void Domain::setMaxY(qreal max) | ||||
| { | ||||
| setRange(m_minX, m_maxX, m_minY, max); | ||||
| } | ||||
|
Michal Klocek
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r131 | qreal Domain::spanX() const | ||
| { | ||||
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r439 | Q_ASSERT(m_maxX >= m_minX); | ||
| return m_maxX - m_minX; | ||||
|
Michal Klocek
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r131 | } | ||
| qreal Domain::spanY() const | ||||
| { | ||||
|
Michal Klocek
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r439 | Q_ASSERT(m_maxY >= m_minY); | ||
| return m_maxY - m_minY; | ||||
|
Michal Klocek
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r131 | } | ||
|
Michal Klocek
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r388 | bool Domain::isEmpty() const | ||
| { | ||||
|
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r768 | return qFuzzyIsNull(spanX()) || qFuzzyIsNull(spanY()); | ||
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Michal Klocek
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r388 | } | ||
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r439 | void Domain::zoomIn(const QRectF& rect, const QSizeF& size) | ||
|
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r131 | { | ||
|
Michal Klocek
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r439 | qreal dx = spanX() / size.width(); | ||
| qreal dy = spanY() / size.height(); | ||||
|
Michal Klocek
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r131 | |||
|
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r1078 | qreal maxX = m_maxX; | ||
| qreal minX = m_minX; | ||||
| qreal minY = m_minY; | ||||
| qreal maxY = m_maxY; | ||||
|
Michal Klocek
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r439 | |||
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r1078 | maxX = minX + dx * rect.right(); | ||
| minX = minX + dx * rect.left(); | ||||
| minY = maxY - dy * rect.bottom(); | ||||
| maxY = maxY - dy * rect.top(); | ||||
|
Michal Klocek
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r678 | |||
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Jani Honkonen
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r2097 | setRange(minX, maxX, minY, maxY); | ||
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r439 | } | ||
| void Domain::zoomOut(const QRectF& rect, const QSizeF& size) | ||||
| { | ||||
| qreal dx = spanX() / rect.width(); | ||||
| qreal dy = spanY() / rect.height(); | ||||
|
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r131 | |||
|
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r1078 | qreal maxX = m_maxX; | ||
| qreal minX = m_minX; | ||||
| qreal minY = m_minY; | ||||
| qreal maxY = m_maxY; | ||||
|
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r131 | |||
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Michal Klocek
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r1078 | minX = maxX - dx * rect.right(); | ||
| maxX = minX + dx * size.width(); | ||||
| maxY = minY + dy * rect.bottom(); | ||||
| minY = maxY - dy * size.height(); | ||||
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Jani Honkonen
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r2097 | setRange(minX, maxX, minY, maxY); | ||
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Michal Klocek
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r531 | } | ||
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Jani Honkonen
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r2097 | void Domain::move(qreal dx, qreal dy, const QSizeF& size) | ||
|
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r531 | { | ||
| qreal x = spanX() / size.width(); | ||||
| qreal y = spanY() / size.height(); | ||||
|
Michal Klocek
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r1078 | qreal maxX = m_maxX; | ||
| qreal minX = m_minX; | ||||
| qreal minY = m_minY; | ||||
| qreal maxY = m_maxY; | ||||
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Jani Honkonen
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r2097 | if (dx != 0) { | ||
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r1078 | minX = minX + x * dx; | ||
| maxX = maxX + x * dx; | ||||
|
Michal Klocek
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r531 | } | ||
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Jani Honkonen
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r2097 | if (dy != 0) { | ||
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r1078 | minY = minY + y * dy; | ||
| maxY = maxY + y * dy; | ||||
|
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r531 | } | ||
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Jani Honkonen
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r2097 | setRange(minX, maxX, minY, maxY); | ||
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Michal Klocek
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r439 | } | ||
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Michal Klocek
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r1698 | void Domain::emitUpdated() | ||
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Michal Klocek
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r678 | { | ||
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r1698 | emit updated(); | ||
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Michal Klocek
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r678 | } | ||
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r1698 | void Domain::handleAxisUpdated() | ||
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Michal Klocek
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r554 | { | ||
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Michal Klocek
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r1698 | QAbstractAxisPrivate* axis = qobject_cast<QAbstractAxisPrivate*>(sender()); | ||
| Q_ASSERT(axis); | ||||
| axis->setDirty(false); | ||||
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Jani Honkonen
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r2097 | if (axis->orientation() == Qt::Horizontal) | ||
| setRangeX(axis->min(), axis->max()); | ||||
| else if (axis->orientation() == Qt::Vertical) | ||||
| setRangeY(axis->min(), axis->max()); | ||||
|
Michal Klocek
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r554 | } | ||
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Michal Klocek
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r1066 | bool QTCOMMERCIALCHART_AUTOTEST_EXPORT operator== (const Domain &domain1, const Domain &domain2) | ||
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Michal Klocek
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r220 | { | ||
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Jani Honkonen
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r768 | return (qFuzzyIsNull(domain1.m_maxX - domain2.m_maxX) && | ||
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Jani Honkonen
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r2097 | qFuzzyIsNull(domain1.m_maxY - domain2.m_maxY) && | ||
| qFuzzyIsNull(domain1.m_minX - domain2.m_minX) && | ||||
| qFuzzyIsNull(domain1.m_minY - domain2.m_minY)); | ||||
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Michal Klocek
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r220 | } | ||
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r1066 | |||
| bool QTCOMMERCIALCHART_AUTOTEST_EXPORT operator!= (const Domain &domain1, const Domain &domain2) | ||||
|
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r220 | { | ||
| return !(domain1 == domain2); | ||||
| } | ||||
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r1066 | |||
| QDebug QTCOMMERCIALCHART_AUTOTEST_EXPORT operator<<(QDebug dbg, const Domain &domain) | ||||
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r222 | { | ||
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Jani Honkonen
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r2097 | dbg.nospace() << "Domain(" << domain.m_minX << ',' << domain.m_maxX << ',' << domain.m_minY << ',' << domain.m_maxY << ')'; | ||
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r222 | return dbg.maybeSpace(); | ||
| } | ||||
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r439 | #include "moc_domain_p.cpp" | ||
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r131 | QTCOMMERCIALCHART_END_NAMESPACE | ||