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Updated min, max properties of values and datetime axes descriptions with information about maintaining the range validity
Updated min, max properties of values and datetime axes descriptions with information about maintaining the range validity
Michal Klocek - - Load All Authors

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r1729:7809dd5f66eb
r1730:029fd1880e16
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chartvaluesaxisx.cpp
122 lines | 3.9 KiB | text/x-c | CppLexer
/ src / axis / valuesaxis / chartvaluesaxisx.cpp
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Marek Rosa
Added Chart classes for value and categories axis
 r1555 /****************************************************************************
**
** 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 "chartvaluesaxisx_p.h"
#include "qabstractaxis.h"
#include "chartpresenter_p.h"
#include "chartanimator_p.h"
Michal Klocek
Refactors Domain and Axis...
 r1698 #include "qvaluesaxis.h"
Marek Rosa
Added Chart classes for value and categories axis
 r1555 #include <QGraphicsLayout>
#include <QDebug>
#include <QFontMetrics>
Marek Rosa
Removed generic chartaxis
 r1561 #include <cmath>
Marek Rosa
Added Chart classes for value and categories axis
 r1555
static int label_padding = 5;
QTCOMMERCIALCHART_BEGIN_NAMESPACE
Michal Klocek
Refactors Domain and Axis...
 r1698 ChartValuesAxisX::ChartValuesAxisX(QAbstractAxis *axis,ChartPresenter *presenter) : ChartAxis(axis,presenter),
m_tickCount(0)
Marek Rosa
Added Chart classes for value and categories axis
 r1555 {
}
ChartValuesAxisX::~ChartValuesAxisX()
{
}
QVector<qreal> ChartValuesAxisX::calculateLayout() const
{
Michal Klocek
Refactors Domain and Axis...
 r1698 Q_ASSERT(m_tickCount>=2);
Marek Rosa
Added Chart classes for value and categories axis
 r1555
QVector<qreal> points;
Michal Klocek
Refactors Domain and Axis...
 r1698 points.resize(m_tickCount);
Marek Rosa
Added Chart classes for value and categories axis
 r1555
Michal Klocek
Refactors Domain and Axis...
 r1698 const qreal deltaX = m_rect.width()/(m_tickCount-1);
for (int i = 0; i < m_tickCount; ++i) {
Marek Rosa
Added Chart classes for value and categories axis
 r1555 int x = i * deltaX + m_rect.left();
points[i] = x;
}
return points;
}
void ChartValuesAxisX::updateGeometry()
{
const QVector<qreal>& layout = ChartAxis::layout();
m_minWidth = 0;
m_minHeight = 0;
if(layout.isEmpty()) return;
QStringList ticksList;
Michal Klocek
Refactor QChart API...
 r1577 createNumberLabels(ticksList,m_min,m_max,layout.size());
Marek Rosa
Added Chart classes for value and categories axis
 r1555
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 Chart classes for value and categories axis
 r1555
Q_ASSERT(labels.size() == ticksList.size());
Q_ASSERT(layout.size() == ticksList.size());
QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem*>(axis.at(0));
lineItem->setLine(m_rect.left(), m_rect.bottom(), m_rect.right(), m_rect.bottom());
qreal width = 0;
for (int i = 0; i < layout.size(); ++i) {
QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem*>(lines.at(i));
lineItem->setLine(layout[i], m_rect.top(), layout[i], m_rect.bottom());
QGraphicsSimpleTextItem *labelItem = static_cast<QGraphicsSimpleTextItem*>(labels.at(i));
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(), m_rect.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();
}
m_minWidth+=rect.width();
m_minHeight=qMax(rect.height(),m_minHeight);
Michal Klocek
Refactor QChart API...
 r1577
Marek Rosa
Added Chart classes for value and categories axis
 r1555 if ((i+1)%2 && i>1) {
QGraphicsRectItem *rectItem = static_cast<QGraphicsRectItem*>(shades.at(i/2-1));
rectItem->setRect(layout[i-1],m_rect.top(),layout[i]-layout[i-1],m_rect.height());
}
lineItem = static_cast<QGraphicsLineItem*>(axis.at(i+1));
lineItem->setLine(layout[i],m_rect.bottom(),layout[i],m_rect.bottom()+5);
}
}
Michal Klocek
Refactors Domain and Axis...
 r1698 void ChartValuesAxisX::handleAxisUpdated()
{
//TODO:: fix this
QValuesAxis* axis = qobject_cast<QValuesAxis*>(m_chartAxis);
m_tickCount = axis->ticksCount();
ChartAxis::handleAxisUpdated();
}
Marek Rosa
Added Chart classes for value and categories axis
 r1555 QTCOMMERCIALCHART_END_NAMESPACE