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coding style fixes for examples
coding style fixes for examples
Jani Honkonen - - Load All Authors

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r2097:db3c1ea5786f
r2098:46e62d22b0b4
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chartdatetimeaxisx.cpp
168 lines | 5.2 KiB | text/x-c | CppLexer
/ src / axis / datetimeaxis / chartdatetimeaxisx.cpp
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Marek Rosa
Added QDateTimeAxis
 r1717 /****************************************************************************
**
** 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
** $QT_END_LICENSE$
**
****************************************************************************/
#include "chartdatetimeaxisx_p.h"
#include "chartpresenter_p.h"
#include "qdatetimeaxis.h"
#include <QGraphicsLayout>
#include <QDateTime>
Michal Klocek
Refactor animator...
 r1735 #include <QFontMetrics>
#include <qmath.h>
Marek Rosa
Added QDateTimeAxis
 r1717
static int label_padding = 5;
QTCOMMERCIALCHART_BEGIN_NAMESPACE
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 ChartDateTimeAxisX::ChartDateTimeAxisX(QAbstractAxis *axis, ChartPresenter *presenter)
: ChartAxis(axis, presenter),
m_tickCount(0)
Marek Rosa
Added QDateTimeAxis
 r1717 {
}
ChartDateTimeAxisX::~ChartDateTimeAxisX()
{
}
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 void ChartDateTimeAxisX::createLabels(QStringList &labels, qreal min, qreal max, int ticks)
Marek Rosa
Added QDateTimeAxis
 r1717 {
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 Q_ASSERT(max > min);
Q_ASSERT(ticks > 1);
Marek Rosa
Added QDateTimeAxis
 r1717
QDateTimeAxis *axis = qobject_cast<QDateTimeAxis *>(m_chartAxis);
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 int n = qMax(int(-floor(log10((max - min) / (ticks - 1)))), 0);
Marek Rosa
Added QDateTimeAxis
 r1717 n++;
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 for (int i = 0; i < ticks; i++) {
qreal value = min + (i * (max - min) / (ticks - 1));
Marek Rosa
DateTimeAxis formatString -> format
 r1801 labels << QDateTime::fromMSecsSinceEpoch(value).toString(axis->format());
Marek Rosa
Added QDateTimeAxis
 r1717 }
}
QVector<qreal> ChartDateTimeAxisX::calculateLayout() const
{
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 Q_ASSERT(m_tickCount >= 2);
Marek Rosa
Added QDateTimeAxis
 r1717
QVector<qreal> points;
points.resize(m_tickCount);
Michal Klocek
Refactors layout...
 r1965 QRectF rect = presenter()->chartsGeometry();
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 const qreal deltaX = rect.width() / (m_tickCount - 1);
Marek Rosa
Added QDateTimeAxis
 r1717 for (int i = 0; i < m_tickCount; ++i) {
Michal Klocek
Refactors layout...
 r1965 int x = i * deltaX + rect.left();
Marek Rosa
Added QDateTimeAxis
 r1717 points[i] = x;
}
return points;
}
void ChartDateTimeAxisX::updateGeometry()
{
const QVector<qreal>& layout = ChartAxis::layout();
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 if (layout.isEmpty())
return;
Marek Rosa
Added QDateTimeAxis
 r1717
QStringList ticksList;
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 createLabels(ticksList, m_min, m_max, layout.size());
Marek Rosa
Added QDateTimeAxis
 r1717
QList<QGraphicsItem *> lines = m_grid->childItems();
QList<QGraphicsItem *> labels = m_labels->childItems();
QList<QGraphicsItem *> shades = m_shades->childItems();
Michal Klocek
Refactor Visibly methods of axis...
 r1729 QList<QGraphicsItem *> axis = m_arrow->childItems();
Marek Rosa
Added QDateTimeAxis
 r1717
Q_ASSERT(labels.size() == ticksList.size());
Q_ASSERT(layout.size() == ticksList.size());
Michal Klocek
Refactors layout...
 r1965 QRectF chartRect = presenter()->chartsGeometry();
Marek Rosa
Added QDateTimeAxis
 r1717 QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem*>(axis.at(0));
Michal Klocek
Refactors layout...
 r1965 lineItem->setLine(chartRect.left(), chartRect.bottom(), chartRect.right(), chartRect.bottom());
Marek Rosa
Added QDateTimeAxis
 r1717
qreal width = 0;
for (int i = 0; i < layout.size(); ++i) {
QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem*>(lines.at(i));
Michal Klocek
Refactors layout...
 r1965 lineItem->setLine(layout[i], chartRect.top(), layout[i], chartRect.bottom());
Marek Rosa
Added QDateTimeAxis
 r1717 QGraphicsSimpleTextItem *labelItem = static_cast<QGraphicsSimpleTextItem*>(labels.at(i));
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 labelItem->setText(ticksList.at(i));
const QRectF& rect = labelItem->boundingRect();
QPointF center = rect.center();
labelItem->setTransformOriginPoint(center.x(), center.y());
labelItem->setPos(layout[i] - center.x(), chartRect.bottom() + label_padding);
if (labelItem->pos().x() <= width) {
labelItem->setVisible(false);
lineItem->setVisible(false);
} else {
labelItem->setVisible(true);
lineItem->setVisible(true);
width = rect.width() + labelItem->pos().x();
Marek Rosa
Added QDateTimeAxis
 r1717 }
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097
if ((i + 1) % 2 && i > 1) {
QGraphicsRectItem *rectItem = static_cast<QGraphicsRectItem*>(shades.at(i / 2 - 1));
rectItem->setRect(layout[i - 1], chartRect.top(), layout[i] - layout[i - 1], chartRect.height());
}
lineItem = static_cast<QGraphicsLineItem*>(axis.at(i + 1));
lineItem->setLine(layout[i], chartRect.bottom(), layout[i], chartRect.bottom() + 5);
Marek Rosa
Added QDateTimeAxis
 r1717 }
}
void ChartDateTimeAxisX::handleAxisUpdated()
{
//TODO:: fix this
QDateTimeAxis* axis = qobject_cast<QDateTimeAxis*>(m_chartAxis);
Marek Rosa
DateTimeAxis formatString -> format
 r1801 m_tickCount = axis->tickCount();
Marek Rosa
Added QDateTimeAxis
 r1717 ChartAxis::handleAxisUpdated();
}
Michal Klocek
Refactors layout...
 r1965 QSizeF ChartDateTimeAxisX::sizeHint(Qt::SizeHint which, const QSizeF& constraint) const
{
Q_UNUSED(constraint)
QFontMetrics fn(m_font);
QSizeF sh;
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 switch (which) {
case Qt::MinimumSize:
sh = QSizeF(fn.boundingRect("...").width(), fn.height());
break;
case Qt::PreferredSize: {
const QVector<qreal>& layout = ChartAxis::layout();
if (layout.isEmpty())
Michal Klocek
Refactors layout...
 r1965 break;
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 QStringList ticksList;
qreal width = 0;
qreal height = 0;
for (int i = 0; i < ticksList.size(); ++i) {
QRectF rect = fn.boundingRect(ticksList.at(i));
width += rect.width();
height += qMax(rect.height() + label_padding, height);
Michal Klocek
Refactors layout...
 r1965 }
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 sh = QSizeF(width, height);
break;
}
default:
break;
}
Michal Klocek
Refactors layout...
 r1965
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 return sh;
Michal Klocek
Refactors layout...
 r1965 }
Marek Rosa
Added QDateTimeAxis
 r1717 QTCOMMERCIALCHART_END_NAMESPACE