|
|
/****************************************************************************
|
|
|
**
|
|
|
** 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 "verticalaxis_p.h"
|
|
|
#include "qabstractaxis.h"
|
|
|
#include <QFontMetrics>
|
|
|
#include <QDebug>
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
VerticalAxis::VerticalAxis(QAbstractAxis *axis, QGraphicsItem* item, bool intervalAxis)
|
|
|
: ChartAxis(axis, item, intervalAxis)
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
VerticalAxis::~VerticalAxis()
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
void VerticalAxis::updateGeometry()
|
|
|
{
|
|
|
const QVector<qreal> &layout = ChartAxis::layout();
|
|
|
|
|
|
if (layout.isEmpty())
|
|
|
return;
|
|
|
|
|
|
QStringList labelList = labels();
|
|
|
|
|
|
QList<QGraphicsItem *> lines = lineItems();
|
|
|
QList<QGraphicsItem *> labels = labelItems();
|
|
|
QList<QGraphicsItem *> shades = shadeItems();
|
|
|
QList<QGraphicsItem *> axis = arrowItems();
|
|
|
QGraphicsSimpleTextItem* title = titleItem();
|
|
|
|
|
|
Q_ASSERT(labels.size() == labelList.size());
|
|
|
Q_ASSERT(layout.size() == labelList.size());
|
|
|
|
|
|
const QRectF &axisRect = axisGeometry();
|
|
|
const QRectF &gridRect = gridGeometry();
|
|
|
|
|
|
qreal height = axisRect.bottom();
|
|
|
|
|
|
|
|
|
//arrow
|
|
|
QGraphicsLineItem *arrowItem = static_cast<QGraphicsLineItem*>(axis.at(0));
|
|
|
|
|
|
//arrow position
|
|
|
if (alignment()==Qt::AlignLeft)
|
|
|
arrowItem->setLine( axisRect.right() , gridRect.top(), axisRect.right(), gridRect.bottom());
|
|
|
else if(alignment()==Qt::AlignRight)
|
|
|
arrowItem->setLine( axisRect.left() , gridRect.top(), axisRect.left(), gridRect.bottom());
|
|
|
|
|
|
QFontMetrics fn(font());
|
|
|
|
|
|
//title
|
|
|
int titlePad = 0;
|
|
|
QRectF titleBoundingRect;
|
|
|
if (!titleText().isEmpty() && titleItem()->isVisible()) {
|
|
|
QFontMetrics fn(title->font());
|
|
|
int size(0);
|
|
|
size = gridRect.height();
|
|
|
QString titleText = this->titleText();
|
|
|
|
|
|
if (fn.boundingRect(titleText).width() > size) {
|
|
|
QString string = titleText + "...";
|
|
|
while (fn.boundingRect(string).width() > size && string.length() > 3)
|
|
|
string.remove(string.length() - 4, 1);
|
|
|
title->setText(string);
|
|
|
}
|
|
|
else {
|
|
|
title->setText(titleText);
|
|
|
}
|
|
|
|
|
|
titlePad = titlePadding();
|
|
|
titleBoundingRect = title->boundingRect();
|
|
|
|
|
|
QPointF center = gridRect.center() - titleBoundingRect.center();
|
|
|
if (alignment() == Qt::AlignLeft) {
|
|
|
title->setPos(axisRect.left() - titleBoundingRect.width() / 2 + titleBoundingRect.height() / 2 + titlePad, center.y());
|
|
|
}
|
|
|
else if (alignment() == Qt::AlignRight) {
|
|
|
title->setPos(axisRect.right() - titleBoundingRect.width() / 2 - titleBoundingRect.height() / 2 - titlePad, center.y());
|
|
|
}
|
|
|
title->setTransformOriginPoint(titleBoundingRect.center());
|
|
|
title->setRotation(270);
|
|
|
}
|
|
|
|
|
|
for (int i = 0; i < layout.size(); ++i) {
|
|
|
|
|
|
//items
|
|
|
QGraphicsLineItem *gridItem = static_cast<QGraphicsLineItem *>(lines.at(i));
|
|
|
QGraphicsLineItem *tickItem = static_cast<QGraphicsLineItem *>(axis.at(i + 1));
|
|
|
QGraphicsSimpleTextItem *labelItem = static_cast<QGraphicsSimpleTextItem *>(labels.at(i));
|
|
|
|
|
|
//grid line
|
|
|
gridItem->setLine(gridRect.left() , layout[i], gridRect.right(), layout[i]);
|
|
|
|
|
|
//label text wrapping
|
|
|
QString text = labelList.at(i);
|
|
|
QRectF boundingRect = labelBoundingRect(fn, text);
|
|
|
|
|
|
qreal size = axisRect.right() - axisRect.left() - labelPadding() - titleBoundingRect.height() - (titlePad * 2);
|
|
|
if (boundingRect.width() > size) {
|
|
|
QString label = text + "...";
|
|
|
while (boundingRect.width() > size && label.length() > 3) {
|
|
|
label.remove(label.length() - 4, 1);
|
|
|
boundingRect = labelBoundingRect(fn, label);
|
|
|
}
|
|
|
labelItem->setText(label);
|
|
|
} else {
|
|
|
labelItem->setText(text);
|
|
|
}
|
|
|
|
|
|
//label transformation origin point
|
|
|
const QRectF &rect = labelItem->boundingRect();
|
|
|
|
|
|
QPointF center = rect.center();
|
|
|
labelItem->setTransformOriginPoint(center.x(), center.y());
|
|
|
int widthDiff = rect.width() - boundingRect.width();
|
|
|
|
|
|
//ticks and label position
|
|
|
if (alignment() == Qt::AlignLeft) {
|
|
|
labelItem->setPos(axisRect.right() - rect.width() + (widthDiff / 2) - labelPadding(), layout[i] - center.y());
|
|
|
tickItem->setLine(axisRect.right() - labelPadding(), layout[i], axisRect.right(), layout[i]);
|
|
|
} else if (alignment() == Qt::AlignRight) {
|
|
|
labelItem->setPos(axisRect.left() + labelPadding() - (widthDiff / 2), layout[i] - center.y());
|
|
|
tickItem->setLine(axisRect.left(), layout[i], axisRect.left() + labelPadding(), layout[i]);
|
|
|
}
|
|
|
|
|
|
//label in beetwen
|
|
|
if(intervalAxis()&& i+1!=layout.size()) {
|
|
|
const qreal delta = (layout[i+1] - layout[i])/2;
|
|
|
labelItem->setPos(labelItem->pos().x() , layout[i] + delta - center.y());
|
|
|
}
|
|
|
|
|
|
//label overlap detection
|
|
|
if(labelItem->pos().y() + boundingRect.height() > height ||
|
|
|
labelItem->pos().y() + boundingRect.height()/2 > gridRect.bottom() ||
|
|
|
labelItem->pos().y() + boundingRect.height()/2 < gridRect.top()) {
|
|
|
labelItem->setVisible(false);
|
|
|
}
|
|
|
else {
|
|
|
labelItem->setVisible(true);
|
|
|
height=labelItem->pos().y();
|
|
|
}
|
|
|
|
|
|
//shades
|
|
|
if ((i + 1) % 2 && i > 1) {
|
|
|
QGraphicsRectItem *rectItem = static_cast<QGraphicsRectItem *>(shades.at(i / 2 - 1));
|
|
|
rectItem->setRect(gridRect.left(), layout[i], gridRect.width(), layout[i - 1] - layout[i]);
|
|
|
}
|
|
|
|
|
|
// check if the grid line and the axis tick should be shown
|
|
|
qreal y = gridItem->line().p1().y();
|
|
|
if ((y < gridRect.top() || y > gridRect.bottom()))
|
|
|
{
|
|
|
gridItem->setVisible(false);
|
|
|
tickItem->setVisible(false);
|
|
|
}else{
|
|
|
gridItem->setVisible(true);
|
|
|
tickItem->setVisible(true);
|
|
|
}
|
|
|
|
|
|
}
|
|
|
//begin/end grid line in case labels between
|
|
|
if (intervalAxis()) {
|
|
|
QGraphicsLineItem *gridLine;
|
|
|
gridLine = static_cast<QGraphicsLineItem *>(lines.at(layout.size()));
|
|
|
gridLine->setLine(gridRect.left(), gridRect.top(), gridRect.right(), gridRect.top());
|
|
|
gridLine->setVisible(true);
|
|
|
gridLine = static_cast<QGraphicsLineItem*>(lines.at(layout.size()+1));
|
|
|
gridLine->setLine(gridRect.left(), gridRect.bottom(), gridRect.right(), gridRect.bottom());
|
|
|
gridLine->setVisible(true);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QSizeF VerticalAxis::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
|
|
|
{
|
|
|
|
|
|
Q_UNUSED(constraint);
|
|
|
QFontMetrics fn(titleFont());
|
|
|
QSizeF sh(0,0);
|
|
|
|
|
|
if (titleText().isEmpty() || !titleItem()->isVisible())
|
|
|
return sh;
|
|
|
|
|
|
switch (which) {
|
|
|
case Qt::MinimumSize:
|
|
|
sh = QSizeF(fn.height() + (titlePadding() * 2), fn.boundingRect("...").width());
|
|
|
break;
|
|
|
case Qt::MaximumSize:
|
|
|
case Qt::PreferredSize:
|
|
|
sh = QSizeF(fn.height() + (titlePadding() * 2), fn.boundingRect(axis()->titleText()).width());
|
|
|
break;
|
|
|
default:
|
|
|
break;
|
|
|
}
|
|
|
|
|
|
return sh;
|
|
|
}
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
