|
|
#include "axisitem_p.h"
|
|
|
#include <QPainter>
|
|
|
#include <QDebug>
|
|
|
|
|
|
#define LABEL_PADDING 5
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
AxisItem::AxisItem(AxisType type,QGraphicsItem* parent) :
|
|
|
ChartItem(parent),
|
|
|
m_ticks(4),
|
|
|
m_type(type)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
AxisItem::~AxisItem()
|
|
|
{
|
|
|
}
|
|
|
|
|
|
void AxisItem::setLength(int length)
|
|
|
{
|
|
|
QPainterPath path;
|
|
|
path.moveTo(QPointF(0,0));
|
|
|
path.lineTo(length,0);
|
|
|
// path.lineTo(length-4,0);
|
|
|
// path.lineTo(length,3);
|
|
|
// path.lineTo(length-4,6);
|
|
|
// path.lineTo(length-4,4);
|
|
|
// path.lineTo(0,4);
|
|
|
// path.lineTo(0,2);
|
|
|
m_path=path;
|
|
|
update();
|
|
|
}
|
|
|
|
|
|
QRectF AxisItem::boundingRect() const
|
|
|
{
|
|
|
return m_rect;
|
|
|
}
|
|
|
|
|
|
void AxisItem::setPlotDomain(const PlotDomain& plotDomain)
|
|
|
{
|
|
|
m_plotDomain = plotDomain;
|
|
|
createItems();
|
|
|
}
|
|
|
|
|
|
void AxisItem::setSize(const QSize &size)
|
|
|
{
|
|
|
m_rect = QRectF(QPoint(0,0),size);
|
|
|
createItems();
|
|
|
}
|
|
|
|
|
|
void AxisItem::setTheme(ChartTheme *theme)
|
|
|
{
|
|
|
if (theme) {
|
|
|
// TODO: add axis related properties to the theme class and use them here
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
void AxisItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,QWidget *widget)
|
|
|
{
|
|
|
if (!m_rect.isValid())
|
|
|
return;
|
|
|
|
|
|
if(m_type==X_AXIS) {
|
|
|
|
|
|
const qreal deltaX = m_rect.width() / m_ticks;
|
|
|
|
|
|
for (int i = 0; i <= m_ticks; ++i) {
|
|
|
|
|
|
int x = i * deltaX + m_rect.left();
|
|
|
|
|
|
if(i==0) x--;
|
|
|
if(i==m_ticks) x++;
|
|
|
|
|
|
qreal label = m_plotDomain.m_minX + (i * m_plotDomain.spanX()
|
|
|
/ m_ticks);
|
|
|
painter->drawLine(x, m_rect.top()-1, x, m_rect.bottom()+1);
|
|
|
// painter->drawLine(x, m_rect.bottom()-1, x, m_rect.bottom()-1 + 5);
|
|
|
|
|
|
painter->drawText(x - 50, m_rect.bottom() + 5, 100, 20,Qt::AlignHCenter | Qt::AlignTop, QString::number(label));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if(m_type==Y_AXIS) {
|
|
|
|
|
|
const qreal deltaY = (m_rect.height()) / m_ticks;
|
|
|
|
|
|
for (int j = 0; j <= m_ticks; ++j) {
|
|
|
|
|
|
int y = j * -deltaY + m_rect.bottom();
|
|
|
|
|
|
if(j==0) y++;
|
|
|
if(j==m_ticks) y--;
|
|
|
|
|
|
qreal label = m_plotDomain.m_minY + (j * m_plotDomain.spanY()
|
|
|
/ m_ticks);
|
|
|
|
|
|
painter->drawLine(m_rect.left()-1, y, m_rect.right()+1, y);
|
|
|
//painter->drawLine(m_rect.left() - 5, y, m_rect.left(), y);
|
|
|
//TODO : margin = 50 ;
|
|
|
painter->drawText(m_rect.left() - 50, y - 10, 50 - 5, 20,
|
|
|
Qt::AlignRight | Qt::AlignVCenter,
|
|
|
QString::number(label));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
//painter->drawRect(m_rect.adjusted(0, 0, -1, -1));
|
|
|
}
|
|
|
*/
|
|
|
void AxisItem::createItems()
|
|
|
{
|
|
|
|
|
|
//TODO: this is very inefficient handling
|
|
|
|
|
|
qDeleteAll(m_shades);
|
|
|
m_shades.clear();
|
|
|
qDeleteAll(m_grid);
|
|
|
m_grid.clear();
|
|
|
qDeleteAll(m_labels);
|
|
|
m_labels.clear();
|
|
|
|
|
|
|
|
|
if(m_type==X_AXIS) {
|
|
|
|
|
|
const qreal deltaX = m_rect.width() / m_ticks;
|
|
|
|
|
|
for (int i = 0; i <= m_ticks; ++i) {
|
|
|
|
|
|
int x = i * deltaX + m_rect.left();
|
|
|
|
|
|
qreal label = m_plotDomain.m_minX + (i * m_plotDomain.spanX()/ m_ticks);
|
|
|
|
|
|
m_grid<<new QGraphicsLineItem(x, m_rect.top(), x, m_rect.bottom(),this);
|
|
|
|
|
|
QGraphicsSimpleTextItem* text = new QGraphicsSimpleTextItem(QString::number(label),this);
|
|
|
QPointF center = text->boundingRect().center();
|
|
|
text->setPos(x - center.x(), m_rect.bottom() + LABEL_PADDING);
|
|
|
//text->rotate(-45);
|
|
|
m_labels<<text;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if(m_type==Y_AXIS) {
|
|
|
|
|
|
const qreal deltaY = m_rect.height()/ m_ticks;
|
|
|
|
|
|
for (int j = 0; j <= m_ticks; ++j) {
|
|
|
|
|
|
int y = j * -deltaY + m_rect.bottom();
|
|
|
|
|
|
qreal label = m_plotDomain.m_minY + (j * m_plotDomain.spanY()
|
|
|
/ m_ticks);
|
|
|
|
|
|
m_grid<<new QGraphicsLineItem(m_rect.left() , y, m_rect.right(), y,this);
|
|
|
QGraphicsSimpleTextItem* text = new QGraphicsSimpleTextItem(QString::number(label),this);
|
|
|
QPointF center = text->boundingRect().center();
|
|
|
|
|
|
text->setPos(m_rect.left() - text->boundingRect().width() - LABEL_PADDING , y-center.y());
|
|
|
//text->rotate(-45);
|
|
|
m_labels<<text;
|
|
|
|
|
|
}
|
|
|
}
|
|
|
|
|
|
//painter->drawRect(m_rect.adjusted(0, 0, -1, -1));
|
|
|
}
|
|
|
|
|
|
//TODO "nice numbers algorithm"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
