|
|
/****************************************************************************
|
|
|
**
|
|
|
** 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 "chartintervalsaxisy_p.h"
|
|
|
#include "qintervalsaxis.h"
|
|
|
#include "qabstractaxis.h"
|
|
|
#include "chartpresenter_p.h"
|
|
|
#include <QGraphicsLayout>
|
|
|
#include <QFontMetrics>
|
|
|
#include <qmath.h>
|
|
|
|
|
|
|
|
|
static int label_padding = 5;
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
ChartIntervalAxisY::ChartIntervalAxisY(QAbstractAxis *axis,ChartPresenter *presenter) : ChartAxis(axis,presenter)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
ChartIntervalAxisY::~ChartIntervalAxisY()
|
|
|
{
|
|
|
}
|
|
|
|
|
|
QVector<qreal> ChartIntervalAxisY::calculateLayout() const
|
|
|
{
|
|
|
QIntervalsAxis *axis = qobject_cast<QIntervalsAxis *>(m_chartAxis);
|
|
|
int tickCount = axis->intervalsLabels().count() + 1;
|
|
|
QVector<qreal> points;
|
|
|
|
|
|
if (tickCount < 2)
|
|
|
return points;
|
|
|
|
|
|
points.resize(tickCount);
|
|
|
|
|
|
qreal scale = m_rect.height() / axis->max();
|
|
|
for (int i = 0; i < tickCount; ++i)
|
|
|
if (i < tickCount - 1) {
|
|
|
int y = -axis->intervalMin(axis->intervalsLabels().at(i)) * scale + m_rect.bottom();
|
|
|
points[i] = y;
|
|
|
} else {
|
|
|
int y = -axis->intervalMax(axis->intervalsLabels().at(i - 1)) * scale + m_rect.bottom();
|
|
|
points[i] = y;
|
|
|
}
|
|
|
|
|
|
return points;
|
|
|
}
|
|
|
|
|
|
void ChartIntervalAxisY::updateGeometry()
|
|
|
{
|
|
|
const QVector<qreal> &layout = ChartAxis::layout();
|
|
|
m_minWidth = 0;
|
|
|
m_minHeight = 0;
|
|
|
|
|
|
if(layout.isEmpty()) return;
|
|
|
|
|
|
QIntervalsAxis *intervalAxis = qobject_cast<QIntervalsAxis *>(m_chartAxis);
|
|
|
|
|
|
QStringList ticksList = intervalAxis->intervalsLabels();
|
|
|
|
|
|
QList<QGraphicsItem *> lines = m_grid->childItems();
|
|
|
QList<QGraphicsItem *> labels = m_labels->childItems();
|
|
|
QList<QGraphicsItem *> shades = m_shades->childItems();
|
|
|
QList<QGraphicsItem *> axis = m_arrow->childItems();
|
|
|
|
|
|
// Q_ASSERT(labels.size() == ticksList.size());
|
|
|
// Q_ASSERT(layout.size() == ticksList.size());
|
|
|
|
|
|
qreal height = 2*m_rect.bottom();
|
|
|
|
|
|
QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem*>(axis.at(0));
|
|
|
lineItem->setLine(m_rect.left() , m_rect.top(), m_rect.left(), m_rect.bottom());
|
|
|
|
|
|
for (int i = 0; i < layout.size(); ++i) {
|
|
|
QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem*>(lines.at(i));
|
|
|
lineItem->setLine(m_rect.left() , layout[i], m_rect.right(), layout[i]);
|
|
|
QGraphicsSimpleTextItem *labelItem = static_cast<QGraphicsSimpleTextItem*>(labels.at(i));
|
|
|
|
|
|
if (i < ticksList.count()) {
|
|
|
labelItem->setText(ticksList.at(i));
|
|
|
}
|
|
|
const QRectF& rect = labelItem->boundingRect();
|
|
|
|
|
|
QPointF center = rect.center();
|
|
|
labelItem->setTransformOriginPoint(center.x(), center.y());
|
|
|
|
|
|
if (i < ticksList.count())
|
|
|
labelItem->setPos(m_rect.left() - rect.width() - label_padding , layout[i] + (layout[i + 1] - layout[i]) / 2 - center.y());
|
|
|
else
|
|
|
labelItem->setPos(m_rect.left() - rect.width() - label_padding , layout[i]-center.y());
|
|
|
|
|
|
if(labelItem->pos().y()+rect.height()>height) {
|
|
|
labelItem->setVisible(false);
|
|
|
lineItem->setVisible(false);
|
|
|
}
|
|
|
else {
|
|
|
labelItem->setVisible(true);
|
|
|
lineItem->setVisible(true);
|
|
|
height=labelItem->pos().y();
|
|
|
}
|
|
|
|
|
|
m_minWidth=qMax(rect.width()+label_padding,m_minWidth);
|
|
|
m_minHeight+=rect.height();
|
|
|
|
|
|
if ((i+1)%2 && i>1) {
|
|
|
QGraphicsRectItem *rectItem = static_cast<QGraphicsRectItem*>(shades.at(i/2-1));
|
|
|
rectItem->setRect(m_rect.left(),layout[i],m_rect.width(),layout[i-1]-layout[i]);
|
|
|
}
|
|
|
lineItem = static_cast<QGraphicsLineItem*>(axis.at(i+1));
|
|
|
lineItem->setLine(m_rect.left()-5,layout[i],m_rect.left(),layout[i]);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void ChartIntervalAxisY::handleAxisUpdated()
|
|
|
{
|
|
|
updateGeometry();
|
|
|
ChartAxis::handleAxisUpdated();
|
|
|
}
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
