|
|
/****************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2015 The Qt Company Ltd
|
|
|
** All rights reserved.
|
|
|
** For any questions to The Qt Company, please use contact form at http://qt.io
|
|
|
**
|
|
|
** This file is part of the Qt Charts module.
|
|
|
**
|
|
|
** Licensees holding valid commercial license for Qt may use this file in
|
|
|
** accordance with the Qt License Agreement provided with the Software
|
|
|
** or, alternatively, in accordance with the terms contained in a written
|
|
|
** agreement between you and The Qt Company.
|
|
|
**
|
|
|
** If you have questions regarding the use of this file, please use
|
|
|
** contact form at http://qt.io
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
#include <private/chartpresenter_p.h>
|
|
|
#include <QtCharts/QChart>
|
|
|
#include <private/chartitem_p.h>
|
|
|
#include <private/qchart_p.h>
|
|
|
#include <QtCharts/QAbstractAxis>
|
|
|
#include <private/qabstractaxis_p.h>
|
|
|
#include <private/chartdataset_p.h>
|
|
|
#include <private/chartanimation_p.h>
|
|
|
#include <private/qabstractseries_p.h>
|
|
|
#include <QtCharts/QAreaSeries>
|
|
|
#include <private/chartaxiselement_p.h>
|
|
|
#include <private/chartbackground_p.h>
|
|
|
#include <private/cartesianchartlayout_p.h>
|
|
|
#include <private/polarchartlayout_p.h>
|
|
|
#include <private/charttitle_p.h>
|
|
|
#include <QtCore/QTimer>
|
|
|
#include <QtGui/QTextDocument>
|
|
|
|
|
|
QT_CHARTS_BEGIN_NAMESPACE
|
|
|
|
|
|
ChartPresenter::ChartPresenter(QChart *chart, QChart::ChartType type)
|
|
|
: QObject(chart),
|
|
|
m_chart(chart),
|
|
|
m_options(QChart::NoAnimation),
|
|
|
m_animationDuration(ChartAnimationDuration),
|
|
|
m_animationCurve(QEasingCurve::OutQuart),
|
|
|
m_state(ShowState),
|
|
|
m_background(0),
|
|
|
m_plotAreaBackground(0),
|
|
|
m_title(0),
|
|
|
m_localizeNumbers(false)
|
|
|
{
|
|
|
if (type == QChart::ChartTypeCartesian)
|
|
|
m_layout = new CartesianChartLayout(this);
|
|
|
else if (type == QChart::ChartTypePolar)
|
|
|
m_layout = new PolarChartLayout(this);
|
|
|
Q_ASSERT(m_layout);
|
|
|
}
|
|
|
|
|
|
ChartPresenter::~ChartPresenter()
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setGeometry(const QRectF rect)
|
|
|
{
|
|
|
if (m_rect != rect) {
|
|
|
m_rect = rect;
|
|
|
foreach (ChartItem *chart, m_chartItems) {
|
|
|
chart->domain()->setSize(rect.size());
|
|
|
chart->setPos(rect.topLeft());
|
|
|
}
|
|
|
emit plotAreaChanged(m_rect);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QRectF ChartPresenter::geometry() const
|
|
|
{
|
|
|
return m_rect;
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::handleAxisAdded(QAbstractAxis *axis)
|
|
|
{
|
|
|
axis->d_ptr->initializeGraphics(rootItem());
|
|
|
axis->d_ptr->initializeAnimations(m_options, m_animationDuration, m_animationCurve);
|
|
|
ChartAxisElement *item = axis->d_ptr->axisItem();
|
|
|
item->setPresenter(this);
|
|
|
item->setThemeManager(m_chart->d_ptr->m_themeManager);
|
|
|
m_axisItems<<item;
|
|
|
m_axes<<axis;
|
|
|
m_layout->invalidate();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::handleAxisRemoved(QAbstractAxis *axis)
|
|
|
{
|
|
|
ChartAxisElement *item = axis->d_ptr->m_item.take();
|
|
|
item->hide();
|
|
|
item->disconnect();
|
|
|
item->deleteLater();
|
|
|
m_axisItems.removeAll(item);
|
|
|
m_axes.removeAll(axis);
|
|
|
m_layout->invalidate();
|
|
|
}
|
|
|
|
|
|
|
|
|
void ChartPresenter::handleSeriesAdded(QAbstractSeries *series)
|
|
|
{
|
|
|
series->d_ptr->initializeGraphics(rootItem());
|
|
|
series->d_ptr->initializeAnimations(m_options, m_animationDuration, m_animationCurve);
|
|
|
series->d_ptr->setPresenter(this);
|
|
|
ChartItem *chart = series->d_ptr->chartItem();
|
|
|
chart->setPresenter(this);
|
|
|
chart->setThemeManager(m_chart->d_ptr->m_themeManager);
|
|
|
chart->domain()->setSize(m_rect.size());
|
|
|
chart->setPos(m_rect.topLeft());
|
|
|
chart->handleDomainUpdated(); //this could be moved to intializeGraphics when animator is refactored
|
|
|
m_chartItems<<chart;
|
|
|
m_series<<series;
|
|
|
m_layout->invalidate();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::handleSeriesRemoved(QAbstractSeries *series)
|
|
|
{
|
|
|
ChartItem *chart = series->d_ptr->m_item.take();
|
|
|
chart->hide();
|
|
|
chart->disconnect();
|
|
|
chart->deleteLater();
|
|
|
if (chart->animation())
|
|
|
chart->animation()->stopAndDestroyLater();
|
|
|
m_chartItems.removeAll(chart);
|
|
|
m_series.removeAll(series);
|
|
|
m_layout->invalidate();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setAnimationOptions(QChart::AnimationOptions options)
|
|
|
{
|
|
|
if (m_options != options) {
|
|
|
QChart::AnimationOptions oldOptions = m_options;
|
|
|
m_options = options;
|
|
|
if (options.testFlag(QChart::SeriesAnimations) != oldOptions.testFlag(QChart::SeriesAnimations)) {
|
|
|
foreach (QAbstractSeries *series, m_series)
|
|
|
series->d_ptr->initializeAnimations(m_options, m_animationDuration,
|
|
|
m_animationCurve);
|
|
|
}
|
|
|
if (options.testFlag(QChart::GridAxisAnimations) != oldOptions.testFlag(QChart::GridAxisAnimations)) {
|
|
|
foreach (QAbstractAxis *axis, m_axes)
|
|
|
axis->d_ptr->initializeAnimations(m_options, m_animationDuration, m_animationCurve);
|
|
|
}
|
|
|
m_layout->invalidate(); // So that existing animations don't just stop halfway
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setAnimationDuration(int msecs)
|
|
|
{
|
|
|
if (m_animationDuration != msecs) {
|
|
|
m_animationDuration = msecs;
|
|
|
foreach (QAbstractSeries *series, m_series)
|
|
|
series->d_ptr->initializeAnimations(m_options, m_animationDuration, m_animationCurve);
|
|
|
foreach (QAbstractAxis *axis, m_axes)
|
|
|
axis->d_ptr->initializeAnimations(m_options, m_animationDuration, m_animationCurve);
|
|
|
m_layout->invalidate(); // So that existing animations don't just stop halfway
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setAnimationEasingCurve(const QEasingCurve &curve)
|
|
|
{
|
|
|
if (m_animationCurve != curve) {
|
|
|
m_animationCurve = curve;
|
|
|
foreach (QAbstractSeries *series, m_series)
|
|
|
series->d_ptr->initializeAnimations(m_options, m_animationDuration, m_animationCurve);
|
|
|
foreach (QAbstractAxis *axis, m_axes)
|
|
|
axis->d_ptr->initializeAnimations(m_options, m_animationDuration, m_animationCurve);
|
|
|
m_layout->invalidate(); // So that existing animations don't just stop halfway
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setState(State state,QPointF point)
|
|
|
{
|
|
|
m_state=state;
|
|
|
m_statePoint=point;
|
|
|
}
|
|
|
|
|
|
QChart::AnimationOptions ChartPresenter::animationOptions() const
|
|
|
{
|
|
|
return m_options;
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::createBackgroundItem()
|
|
|
{
|
|
|
if (!m_background) {
|
|
|
m_background = new ChartBackground(rootItem());
|
|
|
m_background->setPen(Qt::NoPen); // Theme doesn't touch pen so don't use default
|
|
|
m_background->setBrush(QChartPrivate::defaultBrush());
|
|
|
m_background->setZValue(ChartPresenter::BackgroundZValue);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::createPlotAreaBackgroundItem()
|
|
|
{
|
|
|
if (!m_plotAreaBackground) {
|
|
|
if (m_chart->chartType() == QChart::ChartTypeCartesian)
|
|
|
m_plotAreaBackground = new QGraphicsRectItem(rootItem());
|
|
|
else
|
|
|
m_plotAreaBackground = new QGraphicsEllipseItem(rootItem());
|
|
|
// Use transparent pen instead of Qt::NoPen, as Qt::NoPen causes
|
|
|
// antialising artifacts with axis lines for some reason.
|
|
|
m_plotAreaBackground->setPen(QPen(Qt::transparent));
|
|
|
m_plotAreaBackground->setBrush(Qt::NoBrush);
|
|
|
m_plotAreaBackground->setZValue(ChartPresenter::PlotAreaZValue);
|
|
|
m_plotAreaBackground->setVisible(false);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::createTitleItem()
|
|
|
{
|
|
|
if (!m_title) {
|
|
|
m_title = new ChartTitle(rootItem());
|
|
|
m_title->setZValue(ChartPresenter::BackgroundZValue);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::startAnimation(ChartAnimation *animation)
|
|
|
{
|
|
|
animation->stop();
|
|
|
QTimer::singleShot(0, animation, SLOT(startChartAnimation()));
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setBackgroundBrush(const QBrush &brush)
|
|
|
{
|
|
|
createBackgroundItem();
|
|
|
m_background->setBrush(brush);
|
|
|
m_layout->invalidate();
|
|
|
}
|
|
|
|
|
|
QBrush ChartPresenter::backgroundBrush() const
|
|
|
{
|
|
|
if (!m_background)
|
|
|
return QBrush();
|
|
|
return m_background->brush();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setBackgroundPen(const QPen &pen)
|
|
|
{
|
|
|
createBackgroundItem();
|
|
|
m_background->setPen(pen);
|
|
|
m_layout->invalidate();
|
|
|
}
|
|
|
|
|
|
QPen ChartPresenter::backgroundPen() const
|
|
|
{
|
|
|
if (!m_background)
|
|
|
return QPen();
|
|
|
return m_background->pen();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setBackgroundRoundness(qreal diameter)
|
|
|
{
|
|
|
createBackgroundItem();
|
|
|
m_background->setDiameter(diameter);
|
|
|
m_layout->invalidate();
|
|
|
}
|
|
|
|
|
|
qreal ChartPresenter::backgroundRoundness() const
|
|
|
{
|
|
|
if (!m_background)
|
|
|
return 0;
|
|
|
return m_background->diameter();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setPlotAreaBackgroundBrush(const QBrush &brush)
|
|
|
{
|
|
|
createPlotAreaBackgroundItem();
|
|
|
m_plotAreaBackground->setBrush(brush);
|
|
|
m_layout->invalidate();
|
|
|
}
|
|
|
|
|
|
QBrush ChartPresenter::plotAreaBackgroundBrush() const
|
|
|
{
|
|
|
if (!m_plotAreaBackground)
|
|
|
return QBrush();
|
|
|
return m_plotAreaBackground->brush();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setPlotAreaBackgroundPen(const QPen &pen)
|
|
|
{
|
|
|
createPlotAreaBackgroundItem();
|
|
|
m_plotAreaBackground->setPen(pen);
|
|
|
m_layout->invalidate();
|
|
|
}
|
|
|
|
|
|
QPen ChartPresenter::plotAreaBackgroundPen() const
|
|
|
{
|
|
|
if (!m_plotAreaBackground)
|
|
|
return QPen();
|
|
|
return m_plotAreaBackground->pen();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setTitle(const QString &title)
|
|
|
{
|
|
|
createTitleItem();
|
|
|
m_title->setText(title);
|
|
|
m_layout->invalidate();
|
|
|
}
|
|
|
|
|
|
QString ChartPresenter::title() const
|
|
|
{
|
|
|
if (!m_title)
|
|
|
return QString();
|
|
|
return m_title->text();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setTitleFont(const QFont &font)
|
|
|
{
|
|
|
createTitleItem();
|
|
|
m_title->setFont(font);
|
|
|
m_layout->invalidate();
|
|
|
}
|
|
|
|
|
|
QFont ChartPresenter::titleFont() const
|
|
|
{
|
|
|
if (!m_title)
|
|
|
return QFont();
|
|
|
return m_title->font();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setTitleBrush(const QBrush &brush)
|
|
|
{
|
|
|
createTitleItem();
|
|
|
m_title->setDefaultTextColor(brush.color());
|
|
|
m_layout->invalidate();
|
|
|
}
|
|
|
|
|
|
QBrush ChartPresenter::titleBrush() const
|
|
|
{
|
|
|
if (!m_title)
|
|
|
return QBrush();
|
|
|
return QBrush(m_title->defaultTextColor());
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setBackgroundVisible(bool visible)
|
|
|
{
|
|
|
createBackgroundItem();
|
|
|
m_background->setVisible(visible);
|
|
|
}
|
|
|
|
|
|
|
|
|
bool ChartPresenter::isBackgroundVisible() const
|
|
|
{
|
|
|
if (!m_background)
|
|
|
return false;
|
|
|
return m_background->isVisible();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setPlotAreaBackgroundVisible(bool visible)
|
|
|
{
|
|
|
createPlotAreaBackgroundItem();
|
|
|
m_plotAreaBackground->setVisible(visible);
|
|
|
}
|
|
|
|
|
|
bool ChartPresenter::isPlotAreaBackgroundVisible() const
|
|
|
{
|
|
|
if (!m_plotAreaBackground)
|
|
|
return false;
|
|
|
return m_plotAreaBackground->isVisible();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setBackgroundDropShadowEnabled(bool enabled)
|
|
|
{
|
|
|
createBackgroundItem();
|
|
|
m_background->setDropShadowEnabled(enabled);
|
|
|
}
|
|
|
|
|
|
bool ChartPresenter::isBackgroundDropShadowEnabled() const
|
|
|
{
|
|
|
if (!m_background)
|
|
|
return false;
|
|
|
return m_background->isDropShadowEnabled();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setLocalizeNumbers(bool localize)
|
|
|
{
|
|
|
m_localizeNumbers = localize;
|
|
|
m_layout->invalidate();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setLocale(const QLocale &locale)
|
|
|
{
|
|
|
m_locale = locale;
|
|
|
m_layout->invalidate();
|
|
|
}
|
|
|
|
|
|
AbstractChartLayout *ChartPresenter::layout()
|
|
|
{
|
|
|
return m_layout;
|
|
|
}
|
|
|
|
|
|
QLegend *ChartPresenter::legend()
|
|
|
{
|
|
|
return m_chart->legend();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setVisible(bool visible)
|
|
|
{
|
|
|
m_chart->setVisible(visible);
|
|
|
}
|
|
|
|
|
|
ChartBackground *ChartPresenter::backgroundElement()
|
|
|
{
|
|
|
return m_background;
|
|
|
}
|
|
|
|
|
|
QAbstractGraphicsShapeItem *ChartPresenter::plotAreaElement()
|
|
|
{
|
|
|
return m_plotAreaBackground;
|
|
|
}
|
|
|
|
|
|
QList<ChartAxisElement *> ChartPresenter::axisItems() const
|
|
|
{
|
|
|
return m_axisItems;
|
|
|
}
|
|
|
|
|
|
QList<ChartItem *> ChartPresenter::chartItems() const
|
|
|
{
|
|
|
return m_chartItems;
|
|
|
}
|
|
|
|
|
|
ChartTitle *ChartPresenter::titleElement()
|
|
|
{
|
|
|
return m_title;
|
|
|
}
|
|
|
|
|
|
QRectF ChartPresenter::textBoundingRect(const QFont &font, const QString &text, qreal angle)
|
|
|
{
|
|
|
static QGraphicsTextItem dummyTextItem;
|
|
|
static bool initMargin = true;
|
|
|
if (initMargin) {
|
|
|
dummyTextItem.document()->setDocumentMargin(textMargin());
|
|
|
initMargin = false;
|
|
|
}
|
|
|
|
|
|
dummyTextItem.setFont(font);
|
|
|
dummyTextItem.setHtml(text);
|
|
|
QRectF boundingRect = dummyTextItem.boundingRect();
|
|
|
|
|
|
// Take rotation into account
|
|
|
if (angle) {
|
|
|
QTransform transform;
|
|
|
transform.rotate(angle);
|
|
|
boundingRect = transform.mapRect(boundingRect);
|
|
|
}
|
|
|
|
|
|
return boundingRect;
|
|
|
}
|
|
|
|
|
|
// boundingRect parameter returns the rotated bounding rect of the text
|
|
|
QString ChartPresenter::truncatedText(const QFont &font, const QString &text, qreal angle,
|
|
|
qreal maxWidth, qreal maxHeight, QRectF &boundingRect)
|
|
|
{
|
|
|
QString truncatedString(text);
|
|
|
boundingRect = textBoundingRect(font, truncatedString, angle);
|
|
|
if (boundingRect.width() > maxWidth || boundingRect.height() > maxHeight) {
|
|
|
// It can be assumed that almost any amount of string manipulation is faster
|
|
|
// than calculating one bounding rectangle, so first prepare a list of truncated strings
|
|
|
// to try.
|
|
|
static QRegExp truncateMatcher(QStringLiteral("&#?[0-9a-zA-Z]*;$"));
|
|
|
|
|
|
QVector<QString> testStrings(text.length());
|
|
|
int count(0);
|
|
|
static QLatin1Char closeTag('>');
|
|
|
static QLatin1Char openTag('<');
|
|
|
static QLatin1Char semiColon(';');
|
|
|
static QLatin1String ellipsis("...");
|
|
|
while (truncatedString.length() > 1) {
|
|
|
int chopIndex(-1);
|
|
|
int chopCount(1);
|
|
|
QChar lastChar(truncatedString.at(truncatedString.length() - 1));
|
|
|
|
|
|
if (lastChar == closeTag)
|
|
|
chopIndex = truncatedString.lastIndexOf(openTag);
|
|
|
else if (lastChar == semiColon)
|
|
|
chopIndex = truncateMatcher.indexIn(truncatedString, 0);
|
|
|
|
|
|
if (chopIndex != -1)
|
|
|
chopCount = truncatedString.length() - chopIndex;
|
|
|
truncatedString.chop(chopCount);
|
|
|
testStrings[count] = truncatedString + ellipsis;
|
|
|
count++;
|
|
|
}
|
|
|
|
|
|
// Binary search for best fit
|
|
|
int minIndex(0);
|
|
|
int maxIndex(count - 1);
|
|
|
int bestIndex(count);
|
|
|
QRectF checkRect;
|
|
|
|
|
|
while (maxIndex >= minIndex) {
|
|
|
int mid = (maxIndex + minIndex) / 2;
|
|
|
checkRect = textBoundingRect(font, testStrings.at(mid), angle);
|
|
|
if (checkRect.width() > maxWidth || checkRect.height() > maxHeight) {
|
|
|
// Checked index too large, all under this are also too large
|
|
|
minIndex = mid + 1;
|
|
|
} else {
|
|
|
// Checked index fits, all over this also fit
|
|
|
maxIndex = mid - 1;
|
|
|
bestIndex = mid;
|
|
|
boundingRect = checkRect;
|
|
|
}
|
|
|
}
|
|
|
// Default to "..." if nothing fits
|
|
|
if (bestIndex == count) {
|
|
|
boundingRect = textBoundingRect(font, ellipsis, angle);
|
|
|
truncatedString = ellipsis;
|
|
|
} else {
|
|
|
truncatedString = testStrings.at(bestIndex);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
return truncatedString;
|
|
|
}
|
|
|
|
|
|
QString ChartPresenter::numberToString(double value, char f, int prec)
|
|
|
{
|
|
|
if (m_localizeNumbers)
|
|
|
return m_locale.toString(value, f, prec);
|
|
|
else
|
|
|
return QString::number(value, f, prec);
|
|
|
}
|
|
|
|
|
|
QString ChartPresenter::numberToString(int value)
|
|
|
{
|
|
|
if (m_localizeNumbers)
|
|
|
return m_locale.toString(value);
|
|
|
else
|
|
|
return QString::number(value);
|
|
|
}
|
|
|
|
|
|
#include "moc_chartpresenter_p.cpp"
|
|
|
|
|
|
QT_CHARTS_END_NAMESPACE
|
|
|
|
