|
|
/****************************************************************************
|
|
|
**
|
|
|
** 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 "chartaxisx_p.h"
|
|
|
#include "qaxis.h"
|
|
|
#include "qaxis_p.h"
|
|
|
#include "qaxiscategories_p.h"
|
|
|
#include "chartpresenter_p.h"
|
|
|
#include "chartanimator_p.h"
|
|
|
|
|
|
static int label_padding = 5;
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
ChartAxisX::ChartAxisX(QAxis *axis,ChartPresenter *presenter) : ChartAxis(axis,presenter)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
ChartAxisX::~ChartAxisX()
|
|
|
{
|
|
|
}
|
|
|
|
|
|
QVector<qreal> ChartAxisX::calculateLayout() const
|
|
|
{
|
|
|
Q_ASSERT(m_ticksCount>=2);
|
|
|
|
|
|
QVector<qreal> points;
|
|
|
points.resize(m_ticksCount);
|
|
|
|
|
|
const qreal deltaX = m_rect.width()/(m_ticksCount-1);
|
|
|
for (int i = 0; i < m_ticksCount; ++i) {
|
|
|
int x = i * deltaX + m_rect.left();
|
|
|
points[i] = x;
|
|
|
}
|
|
|
return points;
|
|
|
}
|
|
|
|
|
|
void ChartAxisX::updateGeometry()
|
|
|
{
|
|
|
const QVector<qreal>& layout = ChartAxis::layout();
|
|
|
|
|
|
QStringList ticksList;
|
|
|
|
|
|
bool categories = createLabels(ticksList,m_min,m_max,layout.size());
|
|
|
|
|
|
QList<QGraphicsItem *> lines = m_grid->childItems();
|
|
|
QList<QGraphicsItem *> labels = m_labels->childItems();
|
|
|
QList<QGraphicsItem *> shades = m_shades->childItems();
|
|
|
QList<QGraphicsItem *> axis = m_axis->childItems();
|
|
|
|
|
|
Q_ASSERT(labels.size() == ticksList.size());
|
|
|
Q_ASSERT(layout.size() == ticksList.size());
|
|
|
|
|
|
qreal minWidth = 0;
|
|
|
qreal minHeight = 0;
|
|
|
|
|
|
QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem*>(axis.at(0));
|
|
|
lineItem->setLine(m_rect.left(), m_rect.bottom(), m_rect.right(), m_rect.bottom());
|
|
|
|
|
|
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));
|
|
|
if (!categories || i<1) {
|
|
|
labelItem->setText(ticksList.at(i));
|
|
|
const QRectF& rect = labelItem->boundingRect();
|
|
|
minWidth+=rect.width();
|
|
|
minHeight=qMax(rect.height(),minHeight);
|
|
|
QPointF center = rect.center();
|
|
|
labelItem->setTransformOriginPoint(center.x(), center.y());
|
|
|
labelItem->setPos(layout[i] - center.x(), m_rect.bottom() + label_padding);
|
|
|
}
|
|
|
else {
|
|
|
labelItem->setText(ticksList.at(i));
|
|
|
const QRectF& rect = labelItem->boundingRect();
|
|
|
minWidth+=rect.width();
|
|
|
minHeight=qMax(rect.height()+label_padding,minHeight);
|
|
|
QPointF center = rect.center();
|
|
|
labelItem->setTransformOriginPoint(center.x(), center.y());
|
|
|
labelItem->setPos(layout[i] - (layout[i] - layout[i-1])/2 - center.x(), m_rect.bottom() + label_padding);
|
|
|
}
|
|
|
|
|
|
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);
|
|
|
}
|
|
|
|
|
|
presenter()->setMinimumMarginWidth(this,minWidth);
|
|
|
presenter()->setMinimumMarginHeight(this,minHeight);
|
|
|
}
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
