##// END OF EJS Templates
Fix Chart build when QT_NO_RUBBERBAND is defined...
Fix Chart build when QT_NO_RUBBERBAND is defined No rubber band is set for the QChartView if QT_NO_RUBBERBAND is defined. A warning will be fired in case one tries to set the rubber band and Qt is configured without the it. Task-number: QTRD-2240 Change-Id: I6259726077e39f143e317e1b1b13a1daa2a0c1e0 Reviewed-by: Karim Pinter <karim.pinter@digia.com> Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>

File last commit:

r2604:776457a845dd
r2623:e4fe606cdd4c
Show More
chartpresenter.cpp
480 lines | 12.9 KiB | text/x-c | CppLexer
/ src / chartpresenter.cpp
Jani Honkonen
Add license headers
r794 /****************************************************************************
Michal Klocek
Fixes header guard style issues
r969 **
Miikka Heikkinen
Fixed the copyright year 2012 -> 2013
r2432 ** Copyright (C) 2013 Digia Plc
Michal Klocek
Fixes header guard style issues
r969 ** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
Miikka Heikkinen
Qt Commercial -> Qt Enterprise...
r2574 ** This file is part of the Qt Enterprise Charts Add-on.
Michal Klocek
Fixes header guard style issues
r969 **
** $QT_BEGIN_LICENSE$
Miikka Heikkinen
Qt Commercial -> Qt Enterprise...
r2574 ** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
Michal Klocek
Fixes header guard style issues
r969 ** 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 "chartpresenter_p.h"
Michal Klocek
Refactored for MVP...
r139 #include "qchart.h"
Michal Klocek
Refactors internals...
r2273 #include "chartitem_p.h"
Michal Klocek
Refactor qledgend handling...
r855 #include "qchart_p.h"
Michal Klocek
Refactors QAxis to QAbstractAxis...
r1541 #include "qabstractaxis.h"
Michal Klocek
Refactors core to support mulitpile axis and domains...
r1556 #include "qabstractaxis_p.h"
Michal Klocek
Refactors qchart , adds line animation...
r131 #include "chartdataset_p.h"
Michal Klocek
Refactors axis animation, line animations
r1241 #include "chartanimation_p.h"
Tero Ahola
Renamed QSeries to QAbstractSeries
r988 #include "qabstractseries_p.h"
Michal Klocek
Adds area chart...
r421 #include "qareaseries.h"
Miikka Heikkinen
Add Polar chart support...
r2483 #include "chartaxiselement_p.h"
Michal Klocek
Changes QChartAxis -> QAxis
r1006 #include "chartbackground_p.h"
Miikka Heikkinen
Add Polar chart support...
r2483 #include "cartesianchartlayout_p.h"
#include "polarchartlayout_p.h"
Michal Klocek
Refactors layout...
r1965 #include "charttitle_p.h"
Michal Klocek
Refactors axis animation, line animations
r1241 #include <QTimer>
Miikka Heikkinen
Fix text item margins...
r2592 #include <QTextDocument>
Michal Klocek
Refactors qchart , adds line animation...
r131
QTCOMMERCIALCHART_BEGIN_NAMESPACE
Miikka Heikkinen
Add Polar chart support...
r2483 ChartPresenter::ChartPresenter(QChart *chart, QChart::ChartType type)
Jani Honkonen
src folder: another massive victory for coding style police
r2131 : QObject(chart),
m_chart(chart),
m_options(QChart::NoAnimation),
m_state(ShowState),
m_background(0),
Miikka Heikkinen
Add API to specify plot area background....
r2498 m_plotAreaBackground(0),
Jani Honkonen
src folder: another massive victory for coding style police
r2131 m_title(0)
Michal Klocek
Refactors qchart , adds line animation...
r131 {
Miikka Heikkinen
Add Polar chart support...
r2483 if (type == QChart::ChartTypeCartesian)
m_layout = new CartesianChartLayout(this);
else if (type == QChart::ChartTypePolar)
m_layout = new PolarChartLayout(this);
Q_ASSERT(m_layout);
Michal Klocek
Refactors qchart , adds line animation...
r131 }
ChartPresenter::~ChartPresenter()
{
Michal Klocek
Refactors internals...
r2273
Michal Klocek
Refactors qchart , adds line animation...
r131 }
Michal Klocek
Refactors internals...
r2273 void ChartPresenter::setGeometry(const QRectF rect)
Michal Klocek
Refactors qchart , adds line animation...
r131 {
Miikka Heikkinen
Add Polar chart support...
r2483 if (m_rect != rect) {
m_rect = rect;
foreach (ChartItem *chart, m_chartItems) {
chart->domain()->setSize(rect.size());
chart->setPos(rect.topLeft());
}
}
Michal Klocek
Refactors internals...
r2273 }
Michal Klocek
Refactors Domain and Axis...
r1698
Michal Klocek
Refactors internals...
r2273 QRectF ChartPresenter::geometry() const
{
Miikka Heikkinen
Add Polar chart support...
r2483 return m_rect;
Michal Klocek
Refactors internals...
r2273 }
Michal Klocek
Refactors Domain and Axis...
r1698
Michal Klocek
Refactors internals...
r2273 void ChartPresenter::handleAxisAdded(QAbstractAxis *axis)
{
axis->d_ptr->initializeGraphics(rootItem());
axis->d_ptr->initializeAnimations(m_options);
Miikka Heikkinen
Add Polar chart support...
r2483 ChartAxisElement *item = axis->d_ptr->axisItem();
Michal Klocek
Refactors internals...
r2273 item->setPresenter(this);
item->setThemeManager(m_chart->d_ptr->m_themeManager);
m_axisItems<<item;
m_axes<<axis;
Michal Klocek
Refactors layout:...
r2105 m_layout->invalidate();
Michal Klocek
Refactors axis handling...
r223 }
Jani Honkonen
src folder: another massive victory for coding style police
r2131 void ChartPresenter::handleAxisRemoved(QAbstractAxis *axis)
Michal Klocek
Refactors axis handling...
r223 {
Miikka Heikkinen
Add Polar chart support...
r2483 ChartAxisElement *item = axis->d_ptr->m_item.take();
Michal Klocek
Refactor Visibly methods of axis...
r1729 item->hide();
item->disconnect();
sauimone
fixed bug in series deletion
r1562 item->deleteLater();
Michal Klocek
Refactors internals...
r2273 m_axisItems.removeAll(item);
m_axes.removeAll(axis);
Michal Klocek
Removes legacy code - selectVisibleAxis
r2154 m_layout->invalidate();
Michal Klocek
Refactors axis handling...
r223 }
Michal Klocek
Refactors internals...
r2273 void ChartPresenter::handleSeriesAdded(QAbstractSeries *series)
Michal Klocek
Refactors qchart , adds line animation...
r131 {
Michal Klocek
Refactors internals...
r2273 series->d_ptr->initializeGraphics(rootItem());
series->d_ptr->initializeAnimations(m_options);
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;
Michal Klocek
Refactors layout:...
r2105 m_layout->invalidate();
Michal Klocek
Refactors qchart , adds line animation...
r131 }
Jani Honkonen
src folder: another massive victory for coding style police
r2131 void ChartPresenter::handleSeriesRemoved(QAbstractSeries *series)
Michal Klocek
Refactored for MVP...
r139 {
Michal Klocek
Refactors internals...
r2273 ChartItem *chart = series->d_ptr->m_item.take();
chart->hide();
chart->disconnect();
chart->deleteLater();
m_chartItems.removeAll(chart);
m_series.removeAll(series);
m_layout->invalidate();
Michal Klocek
Adds missing ids to theme classes
r153 }
Michal Klocek
Adds animation settings handling
r298 void ChartPresenter::setAnimationOptions(QChart::AnimationOptions options)
{
Jani Honkonen
src folder: another massive victory for coding style police
r2131 if (m_options != options) {
Miikka Heikkinen
Fix resetting animation options mid-animation....
r2555 QChart::AnimationOptions oldOptions = m_options;
Jani Honkonen
src folder: another massive victory for coding style police
r2131 m_options = options;
Miikka Heikkinen
Fix resetting animation options mid-animation....
r2555 if (options.testFlag(QChart::SeriesAnimations) != oldOptions.testFlag(QChart::SeriesAnimations)) {
foreach (QAbstractSeries *series, m_series)
series->d_ptr->initializeAnimations(m_options);
Michal Klocek
Refactors internals...
r2273 }
Miikka Heikkinen
Fix resetting animation options mid-animation....
r2555 if (options.testFlag(QChart::GridAxisAnimations) != oldOptions.testFlag(QChart::GridAxisAnimations)) {
foreach (QAbstractAxis *axis, m_axes)
axis->d_ptr->initializeAnimations(m_options);
Michal Klocek
Refactors internals...
r2273 }
Miikka Heikkinen
Fix resetting animation options mid-animation....
r2555 m_layout->invalidate(); // So that existing animations don't just stop halfway
Jani Honkonen
src folder: another massive victory for coding style police
r2131 }
Michal Klocek
Adds scroll support...
r531 }
Michal Klocek
Refactors internals...
r2273 void ChartPresenter::setState(State state,QPointF point)
Michal Klocek
Refactor domain model...
r439 {
Michal Klocek
Refactors internals...
r2273 m_state=state;
m_statePoint=point;
Michal Klocek
Adds scroll support...
r531 }
Michal Klocek
Adds animation settings handling
r298 QChart::AnimationOptions ChartPresenter::animationOptions() const
{
return m_options;
}
Michal Klocek
Refactors layout managment...
r1534 void ChartPresenter::createBackgroundItem()
Michal Klocek
Refactor qledgend handling...
r855 {
Michal Klocek
Refactors layout...
r1965 if (!m_background) {
m_background = new ChartBackground(rootItem());
Miikka Heikkinen
Fix explicitly set default pen/brush/font getting overridden by theme...
r2516 m_background->setPen(Qt::NoPen); // Theme doesn't touch pen so don't use default
m_background->setBrush(QChartPrivate::defaultBrush());
Michal Klocek
Refactors layout...
r1965 m_background->setZValue(ChartPresenter::BackgroundZValue);
Michal Klocek
Refactors layout managment...
r1534 }
}
Michal Klocek
Refactor qledgend handling...
r855
Miikka Heikkinen
Add API to specify plot area background....
r2498 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);
}
}
Michal Klocek
Refactors layout managment...
r1534 void ChartPresenter::createTitleItem()
{
Michal Klocek
Refactors layout...
r1965 if (!m_title) {
m_title = new ChartTitle(rootItem());
m_title->setZValue(ChartPresenter::BackgroundZValue);
Michal Klocek
Refactors layout managment...
r1534 }
}
Tero Ahola
Added property definitions to QChart
r1524
Jani Honkonen
src folder: another massive victory for coding style police
r2131 void ChartPresenter::startAnimation(ChartAnimation *animation)
Michal Klocek
Refactors layout managment...
r1534 {
Miikka Heikkinen
Fix resetting animation options mid-animation....
r2555 animation->stop();
QTimer::singleShot(0, animation, SLOT(startChartAnimation()));
Michal Klocek
Refactors layout managment...
r1534 }
Michal Klocek
Refactor qledgend handling...
r855
Jani Honkonen
src folder: another massive victory for coding style police
r2131 void ChartPresenter::setBackgroundBrush(const QBrush &brush)
Michal Klocek
Refactors layout managment...
r1534 {
createBackgroundItem();
Michal Klocek
Refactors layout...
r1965 m_background->setBrush(brush);
Michal Klocek
Refactors layout managment...
r1534 m_layout->invalidate();
}
Michal Klocek
Refactor qledgend handling...
r855
Michal Klocek
Refactors layout managment...
r1534 QBrush ChartPresenter::backgroundBrush() const
{
Jani Honkonen
src folder: another massive victory for coding style police
r2131 if (!m_background)
return QBrush();
Michal Klocek
Refactors layout...
r1965 return m_background->brush();
Michal Klocek
Refactors layout managment...
r1534 }
Michal Klocek
Refactor qledgend handling...
r855
Jani Honkonen
src folder: another massive victory for coding style police
r2131 void ChartPresenter::setBackgroundPen(const QPen &pen)
Michal Klocek
Refactors layout managment...
r1534 {
createBackgroundItem();
Michal Klocek
Refactors layout...
r1965 m_background->setPen(pen);
Michal Klocek
Refactors layout managment...
r1534 m_layout->invalidate();
}
Michal Klocek
Refactor qledgend handling...
r855
Michal Klocek
Refactors layout managment...
r1534 QPen ChartPresenter::backgroundPen() const
{
Jani Honkonen
src folder: another massive victory for coding style police
r2131 if (!m_background)
return QPen();
Michal Klocek
Refactors layout...
r1965 return m_background->pen();
Michal Klocek
Refactors layout managment...
r1534 }
Michal Klocek
Add minimum size back to chartview and qchart
r913
Miikka Heikkinen
Added API to set chart background roundness...
r2549 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();
}
Miikka Heikkinen
Add API to specify plot area background....
r2498 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();
}
Jani Honkonen
src folder: another massive victory for coding style police
r2131 void ChartPresenter::setTitle(const QString &title)
Michal Klocek
Refactors layout managment...
r1534 {
createTitleItem();
Michal Klocek
Refactors layout...
r1965 m_title->setText(title);
Michal Klocek
Refactors layout managment...
r1534 m_layout->invalidate();
}
Michal Klocek
Add minimum size back to chartview and qchart
r913
Michal Klocek
Refactors layout managment...
r1534 QString ChartPresenter::title() const
{
Jani Honkonen
src folder: another massive victory for coding style police
r2131 if (!m_title)
return QString();
Michal Klocek
Refactors layout...
r1965 return m_title->text();
Michal Klocek
Refactors layout managment...
r1534 }
Michal Klocek
Refactor qledgend handling...
r855
Jani Honkonen
src folder: another massive victory for coding style police
r2131 void ChartPresenter::setTitleFont(const QFont &font)
Michal Klocek
Refactors layout managment...
r1534 {
createTitleItem();
Michal Klocek
Refactors layout...
r1965 m_title->setFont(font);
Michal Klocek
Refactors layout managment...
r1534 m_layout->invalidate();
}
Michal Klocek
Refactor qledgend handling...
r855
Michal Klocek
Refactors layout managment...
r1534 QFont ChartPresenter::titleFont() const
{
Jani Honkonen
src folder: another massive victory for coding style police
r2131 if (!m_title)
return QFont();
Michal Klocek
Refactors layout...
r1965 return m_title->font();
Michal Klocek
Refactors layout managment...
r1534 }
Michal Klocek
Add minimum size back to chartview and qchart
r913
Michal Klocek
Refactors layout managment...
r1534 void ChartPresenter::setTitleBrush(const QBrush &brush)
{
createTitleItem();
Miikka Heikkinen
Added HTML support for various text items...
r2539 m_title->setDefaultTextColor(brush.color());
Michal Klocek
Refactors layout managment...
r1534 m_layout->invalidate();
}
Michal Klocek
Bugfixes for unnesery geometry changes
r869
Michal Klocek
Refactors layout managment...
r1534 QBrush ChartPresenter::titleBrush() const
{
Jani Honkonen
src folder: another massive victory for coding style police
r2131 if (!m_title)
return QBrush();
Miikka Heikkinen
Added HTML support for various text items...
r2539 return QBrush(m_title->defaultTextColor());
Michal Klocek
Refactors layout managment...
r1534 }
void ChartPresenter::setBackgroundVisible(bool visible)
{
createBackgroundItem();
Michal Klocek
Refactors layout...
r1965 m_background->setVisible(visible);
Michal Klocek
Refactors layout managment...
r1534 }
Michal Klocek
Refactor , move dataset legend presentr connections to one place
r871
Michal Klocek
Refactor qledgend handling...
r855
Michal Klocek
Refactors layout managment...
r1534 bool ChartPresenter::isBackgroundVisible() const
{
Jani Honkonen
src folder: another massive victory for coding style police
r2131 if (!m_background)
return false;
Michal Klocek
Refactors layout...
r1965 return m_background->isVisible();
Michal Klocek
Refactor qledgend handling...
r855 }
Miikka Heikkinen
Add API to specify plot area background....
r2498 void ChartPresenter::setPlotAreaBackgroundVisible(bool visible)
{
createPlotAreaBackgroundItem();
m_plotAreaBackground->setVisible(visible);
}
bool ChartPresenter::isPlotAreaBackgroundVisible() const
{
if (!m_plotAreaBackground)
return false;
return m_plotAreaBackground->isVisible();
}
Michal Klocek
Refactors layout managment...
r1534 void ChartPresenter::setBackgroundDropShadowEnabled(bool enabled)
Michal Klocek
Refactor qledgend handling...
r855 {
Michal Klocek
Refactors layout managment...
r1534 createBackgroundItem();
Michal Klocek
Refactors layout...
r1965 m_background->setDropShadowEnabled(enabled);
Michal Klocek
Refactor qledgend handling...
r855 }
Michal Klocek
Refactors layout managment...
r1534 bool ChartPresenter::isBackgroundDropShadowEnabled() const
Michal Klocek
Refactor qledgend handling...
r855 {
Jani Honkonen
src folder: another massive victory for coding style police
r2131 if (!m_background)
return false;
Michal Klocek
Refactors layout...
r1965 return m_background->isDropShadowEnabled();
Michal Klocek
Refactor qledgend handling...
r855 }
Michal Klocek
Refactor themes...
r143
Michal Klocek
Refactors layout managment...
r1534
Miikka Heikkinen
Add Polar chart support...
r2483 AbstractChartLayout *ChartPresenter::layout()
Michal Klocek
Refactors axis animation, line animations
r1241 {
Michal Klocek
Refactors layout managment...
r1534 return m_layout;
Michal Klocek
Refactors axis animation, line animations
r1241 }
Jani Honkonen
src folder: another massive victory for coding style police
r2131 QLegend *ChartPresenter::legend()
Michal Klocek
Refactors layout managment...
r1534 {
return m_chart->legend();
}
Michal Klocek
Refactors layout...
r1965 void ChartPresenter::setVisible(bool visible)
{
m_chart->setVisible(visible);
}
Jani Honkonen
src folder: another massive victory for coding style police
r2131 ChartBackground *ChartPresenter::backgroundElement()
Michal Klocek
Refactors layout...
r1965 {
return m_background;
}
Miikka Heikkinen
Add API to specify plot area background....
r2498 QAbstractGraphicsShapeItem *ChartPresenter::plotAreaElement()
{
return m_plotAreaBackground;
}
Miikka Heikkinen
Add Polar chart support...
r2483 QList<ChartAxisElement *> ChartPresenter::axisItems() const
Michal Klocek
Refactors layout managment...
r1534 {
Michal Klocek
Refactors internals...
r2273 return m_axisItems;
Michal Klocek
Refactors layout managment...
r1534 }
Michal Klocek
Refactors internals...
r2273 QList<ChartItem *> ChartPresenter::chartItems() const
Michal Klocek
Refactors layout:...
r2105 {
Michal Klocek
Refactors internals...
r2273 return m_chartItems;
Michal Klocek
Refactors layout:...
r2105 }
Jani Honkonen
src folder: another massive victory for coding style police
r2131 ChartTitle *ChartPresenter::titleElement()
Michal Klocek
Refactors layout managment...
r1534 {
Michal Klocek
Refactors layout...
r1965 return m_title;
Michal Klocek
Refactors axis animation, line animations
r1241 }
Miikka Heikkinen
Added HTML support for various text items...
r2539 QRectF ChartPresenter::textBoundingRect(const QFont &font, const QString &text, qreal angle)
{
Miikka Heikkinen
Clean up static variables a bit...
r2543 static QGraphicsTextItem dummyTextItem;
Miikka Heikkinen
Fix text item margins...
r2592 static bool initMargin = true;
if (initMargin) {
dummyTextItem.document()->setDocumentMargin(textMargin());
initMargin = false;
}
Miikka Heikkinen
Added HTML support for various text items...
r2539
Miikka Heikkinen
Clean up static variables a bit...
r2543 dummyTextItem.setFont(font);
dummyTextItem.setHtml(text);
QRectF boundingRect = dummyTextItem.boundingRect();
Miikka Heikkinen
Added HTML support for various text items...
r2539
// 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,
Titta Heikkala
Fix long labels visibility for QBarChart...
r2604 qreal maxWidth, qreal maxHeight, QRectF &boundingRect)
Miikka Heikkinen
Added HTML support for various text items...
r2539 {
QString truncatedString(text);
boundingRect = textBoundingRect(font, truncatedString, angle);
Titta Heikkala
Fix long labels visibility for QBarChart...
r2604 if (boundingRect.width() > maxWidth || boundingRect.height() > maxHeight) {
Miikka Heikkinen
Optimize string truncation algorithm...
r2541 // 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.
Miikka Heikkinen
Clean up static variables a bit...
r2543 static const char *truncateMatchString = "&#?[0-9a-zA-Z]*;$";
static QRegExp truncateMatcher(truncateMatchString);
Miikka Heikkinen
Optimize string truncation algorithm...
r2541 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)
Miikka Heikkinen
Clean up static variables a bit...
r2543 chopIndex = truncateMatcher.indexIn(truncatedString, 0);
Miikka Heikkinen
Optimize string truncation algorithm...
r2541
if (chopIndex != -1)
chopCount = truncatedString.length() - chopIndex;
truncatedString.chop(chopCount);
testStrings[count] = truncatedString + ellipsis;
count++;
}
Miikka Heikkinen
Added HTML support for various text items...
r2539
Miikka Heikkinen
Optimize string truncation algorithm...
r2541 // Binary search for best fit
int minIndex(0);
int maxIndex(count - 1);
int bestIndex(count);
QRectF checkRect;
Titta Heikkala
Fix long labels visibility for QBarChart...
r2604
Miikka Heikkinen
Optimize string truncation algorithm...
r2541 while (maxIndex >= minIndex) {
int mid = (maxIndex + minIndex) / 2;
checkRect = textBoundingRect(font, testStrings.at(mid), angle);
Titta Heikkala
Fix long labels visibility for QBarChart...
r2604 if (checkRect.width() > maxWidth || checkRect.height() > maxHeight) {
Miikka Heikkinen
Optimize string truncation algorithm...
r2541 // 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);
Miikka Heikkinen
Added HTML support for various text items...
r2539 }
}
return truncatedString;
}
Michal Klocek
Refactors qchart , adds line animation...
r131 #include "moc_chartpresenter_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE