|
|
/****************************************************************************
|
|
|
**
|
|
|
** 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 "chartlayout_p.h"
|
|
|
#include "chartpresenter_p.h"
|
|
|
#include "chartaxis_p.h"
|
|
|
#include <QDebug>
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
ChartLayout::ChartLayout(ChartPresenter* presenter):
|
|
|
m_presenter(presenter),
|
|
|
m_marginBig(60),
|
|
|
m_marginSmall(20),
|
|
|
m_marginTiny(10),
|
|
|
m_chartMargins(QPointF(m_marginBig,m_marginBig),QPointF(m_marginBig,m_marginBig))
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
ChartLayout::~ChartLayout()
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
void ChartLayout::setGeometry(const QRectF& rect)
|
|
|
{
|
|
|
|
|
|
if (!rect.isValid()) return;
|
|
|
|
|
|
QGraphicsLayout::setGeometry(rect);
|
|
|
|
|
|
// check title size
|
|
|
|
|
|
QSize titleSize = QSize(0,0);
|
|
|
|
|
|
if (m_presenter->titleItem()) {
|
|
|
titleSize= m_presenter->titleItem()->boundingRect().size().toSize();
|
|
|
}
|
|
|
|
|
|
qreal axisHeight = 0;
|
|
|
qreal axisWidth = 0;
|
|
|
|
|
|
// check axis size
|
|
|
|
|
|
foreach (ChartAxis* axis,m_presenter->axisItems()){
|
|
|
if(axis->axisType() == ChartAxis::X_AXIS)
|
|
|
axisHeight = qMax(axis->minimumHeight(),axisHeight);
|
|
|
else
|
|
|
axisWidth = qMax(axis->minimumWidth(),axisWidth);
|
|
|
}
|
|
|
|
|
|
QLegend* legend = m_presenter->legend();
|
|
|
|
|
|
qreal titlePadding = m_chartMargins.top()/2;
|
|
|
|
|
|
QRectF chartMargins = m_chartMargins;
|
|
|
|
|
|
// recalculate legend position
|
|
|
if (legend != 0 && legend->isVisible() && legend->isAttachedToChart()) {
|
|
|
|
|
|
// Reserve some space for legend
|
|
|
switch (legend->alignment()) {
|
|
|
|
|
|
case Qt::AlignTop: {
|
|
|
QSizeF legendSize = legend->effectiveSizeHint(Qt::PreferredSize,QSizeF(rect.width(),-1));
|
|
|
int topMargin = 2*m_marginTiny + titleSize.height() + legendSize.height() + m_marginTiny;
|
|
|
chartMargins = QRect(QPoint(m_chartMargins.left(),topMargin),QPoint(m_chartMargins.right(),m_chartMargins.bottom()));
|
|
|
m_legendMargins = QRect(QPoint(chartMargins.left(),topMargin - (legendSize.height() + m_marginTiny)),QPoint(chartMargins.right(),rect.height()-topMargin + m_marginTiny));
|
|
|
titlePadding = m_marginTiny + m_marginTiny;
|
|
|
break;
|
|
|
}
|
|
|
case Qt::AlignBottom: {
|
|
|
QSizeF legendSize = legend->effectiveSizeHint(Qt::PreferredSize,QSizeF(rect.width(),-1));
|
|
|
int bottomMargin = m_marginTiny + m_marginSmall + legendSize.height() + m_marginTiny + axisHeight;
|
|
|
chartMargins = QRect(QPoint(m_chartMargins.left(),m_chartMargins.top()),QPoint(m_chartMargins.right(),bottomMargin));
|
|
|
m_legendMargins = QRect(QPoint(chartMargins.left(),rect.height()-bottomMargin + m_marginTiny + axisHeight),QPoint(chartMargins.right(),m_marginTiny + m_marginSmall));
|
|
|
titlePadding = chartMargins.top()/2;
|
|
|
break;
|
|
|
}
|
|
|
case Qt::AlignLeft: {
|
|
|
QSizeF legendSize = legend->effectiveSizeHint(Qt::PreferredSize,QSizeF(-1,rect.height()));
|
|
|
int leftPadding = m_marginTiny + m_marginSmall + legendSize.width() + m_marginTiny + axisWidth;
|
|
|
chartMargins = QRect(QPoint(leftPadding,m_chartMargins.top()),QPoint(m_chartMargins.right(),m_chartMargins.bottom()));
|
|
|
m_legendMargins = QRect(QPoint(m_marginTiny + m_marginSmall,chartMargins.top()),QPoint(rect.width()-leftPadding + m_marginTiny + axisWidth,chartMargins.bottom()));
|
|
|
titlePadding = chartMargins.top()/2;
|
|
|
break;
|
|
|
}
|
|
|
case Qt::AlignRight: {
|
|
|
QSizeF legendSize = legend->effectiveSizeHint(Qt::PreferredSize,QSizeF(-1,rect.height()));
|
|
|
int rightPadding = m_marginTiny + m_marginSmall + legendSize.width() + m_marginTiny;
|
|
|
chartMargins = QRect(QPoint(m_chartMargins.left(),m_chartMargins.top()),QPoint(rightPadding,m_chartMargins.bottom()));
|
|
|
m_legendMargins = QRect(QPoint(rect.width()- rightPadding+ m_marginTiny ,chartMargins.top()),QPoint(m_marginTiny + m_marginSmall,chartMargins.bottom()));
|
|
|
titlePadding = chartMargins.top()/2;
|
|
|
break;
|
|
|
}
|
|
|
default: {
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
legend->setGeometry(rect.adjusted(m_legendMargins.left(),m_legendMargins.top(),-m_legendMargins.right(),-m_legendMargins.bottom()));
|
|
|
}
|
|
|
|
|
|
// recalculate title position
|
|
|
if (m_presenter->titleItem()) {
|
|
|
QPointF center = rect.center() - m_presenter->titleItem()->boundingRect().center();
|
|
|
m_presenter->titleItem()->setPos(center.x(),titlePadding);
|
|
|
}
|
|
|
|
|
|
//recalculate background gradient
|
|
|
if (m_presenter->backgroundItem()) {
|
|
|
m_presenter->backgroundItem()->setRect(rect.adjusted(m_marginTiny,m_marginTiny, -m_marginTiny, -m_marginTiny));
|
|
|
}
|
|
|
|
|
|
QRectF chartRect = rect.adjusted(chartMargins.left(),chartMargins.top(),-chartMargins.right(),-chartMargins.bottom());
|
|
|
|
|
|
if(m_presenter->geometry()!=chartRect && chartRect.isValid()){
|
|
|
m_presenter->setGeometry(chartRect);
|
|
|
}else if(chartRect.size().isEmpty()){
|
|
|
m_presenter->setGeometry(QRect(rect.width()/2,rect.height()/2,1,1));
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
QSizeF ChartLayout::sizeHint ( Qt::SizeHint which, const QSizeF & constraint) const
|
|
|
{
|
|
|
Q_UNUSED(constraint);
|
|
|
if(which == Qt::MinimumSize)
|
|
|
return QSize(2*(m_chartMargins.top()+m_chartMargins.bottom()),2*(m_chartMargins.top() + m_chartMargins.bottom()));
|
|
|
else
|
|
|
return QSize(-1,-1);
|
|
|
}
|
|
|
|
|
|
void ChartLayout::setMarginsMinimum(const QRectF& margins)
|
|
|
{
|
|
|
if(m_chartMargins != margins){
|
|
|
m_chartMargins = margins;
|
|
|
updateGeometry();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QRectF ChartLayout::margins() const
|
|
|
{
|
|
|
return m_chartMargins;
|
|
|
}
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
