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Clear chart image to transparent when necessary....
Clear chart image to transparent when necessary. If there is any transparency in the background, image clear should be done every time chart is rendered to avoid artifacts from previous render. Background shape change also triggers the clear, but that is needed only once. Change-Id: If0a762d2e2e01cf3a94a5d2f6845613deb619bdd Reviewed-by: Titta Heikkala <titta.heikkala@theqtcompany.com>
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r2845:ae12522d475c
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piechartitem.cpp
234 lines | 8.1 KiB | text/x-c | CppLexer
/ src / charts / piechart / piechartitem.cpp
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Titta Heikkala
Updated license headers...
 r2845 /******************************************************************************
Jani Honkonen
Add license headers
 r794 **
Titta Heikkala
Updated license headers...
 r2845 ** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
Jani Honkonen
Add license headers
 r794 **
Titta Heikkala
Updated license headers...
 r2740 ** This file is part of the Qt Charts module.
Jani Honkonen
Add license headers
 r794 **
Titta Heikkala
Updated license headers...
 r2845 ** $QT_BEGIN_LICENSE:COMM$
Jani Honkonen
Add license headers
 r794 **
Titta Heikkala
Updated license headers...
 r2845 ** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
Jani Honkonen
Add license headers
 r794 **
Titta Heikkala
Updated license headers...
 r2845 ** $QT_END_LICENSE$
**
******************************************************************************/
Jani Honkonen
Add license headers
 r794
Titta Heikkala
Fix include syntax...
 r2714 #include <private/piechartitem_p.h>
#include <private/piesliceitem_p.h>
#include <QtCharts/QPieSlice>
#include <private/qpieslice_p.h>
#include <QtCharts/QPieSeries>
#include <private/qpieseries_p.h>
#include <private/chartpresenter_p.h>
#include <private/chartdataset_p.h>
#include <private/pieanimation_p.h>
#include <QtGui/QPainter>
#include <QtCore/QTimer>
Jani Honkonen
Pie chart refactoring
 r142
Titta Heikkala
Qt Charts project file structure change...
 r2712 QT_CHARTS_BEGIN_NAMESPACE
Jani Honkonen
Pie chart refactoring
 r142
Michal Klocek
Refactors internals...
 r2273 PieChartItem::PieChartItem(QPieSeries *series, QGraphicsItem* item)
: ChartItem(series->d_func(),item),
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 m_series(series),
m_animation(0)
Jani Honkonen
Pie chart refactoring
 r142 {
Q_ASSERT(series);
Jani Honkonen
API review changes for pie
 r1009
Tero Ahola
Removed a few signals from QPieSeries API
 r1482 QPieSeriesPrivate *p = QPieSeriesPrivate::fromSeries(series);
Jani Honkonen
pie: implement hiding the series
 r1456 connect(series, SIGNAL(visibleChanged()), this, SLOT(handleSeriesVisibleChanged()));
Tero Ahola
Added opacity property to QAbstractSeries
 r2067 connect(series, SIGNAL(opacityChanged()), this, SLOT(handleOpacityChanged()));
Jani Honkonen
pie: make slice added/removed signals public (again)
 r1213 connect(series, SIGNAL(added(QList<QPieSlice*>)), this, SLOT(handleSlicesAdded(QList<QPieSlice*>)));
connect(series, SIGNAL(removed(QList<QPieSlice*>)), this, SLOT(handleSlicesRemoved(QList<QPieSlice*>)));
Tero Ahola
Removed a few signals from QPieSeries API
 r1482 connect(p, SIGNAL(horizontalPositionChanged()), this, SLOT(updateLayout()));
connect(p, SIGNAL(verticalPositionChanged()), this, SLOT(updateLayout()));
connect(p, SIGNAL(pieSizeChanged()), this, SLOT(updateLayout()));
connect(p, SIGNAL(calculatedDataChanged()), this, SLOT(updateLayout()));
Jani Honkonen
Refactoring pie series and animations.
 r621
Tero Ahola
Z order for pie
 r490 // Note: the following does not affect as long as the item does not have anything to paint
setZValue(ChartPresenter::PieSeriesZValue);
Jani Honkonen
pie: fix bug with qmlchart demo...
 r1238
// Note: will not create slice items until we have a proper rectangle to draw on.
Titta Heikkala
Add pressed, released and doubleClicked signals...
 r2739
setFlag(QGraphicsItem::ItemIsSelectable);
Jani Honkonen
Pie chart refactoring
 r142 }
Jani Honkonen
Rename piepresenter -> piechartitem
 r568 PieChartItem::~PieChartItem()
Jani Honkonen
Pie chart refactoring
 r142 {
Jani Honkonen
Refactoring piechart API (and internals)
 r174 // slices deleted automatically through QGraphicsItem
Miikka Heikkinen
Fix crash when signals connected to deleted PieChartItem are emitted...
 r2423 if (m_series) {
m_series->disconnect(this);
QPieSeriesPrivate::fromSeries(m_series)->disconnect(this);
}
foreach (QPieSlice *slice, m_sliceItems.keys()) {
slice->disconnect(this);
QPieSlicePrivate::fromSlice(slice)->disconnect(this);
}
Jani Honkonen
Pie chart refactoring
 r142 }
Jani Honkonen
more coding style fixes for src-folder...
 r2104 void PieChartItem::setAnimation(PieAnimation *animation)
Michal Klocek
Refactor animator...
 r1735 {
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 m_animation = animation;
Michal Klocek
Refactor animator...
 r1735 }
Jani Honkonen
more coding style fixes for src-folder...
 r2104 ChartAnimation *PieChartItem::animation() const
Michal Klocek
Refactor animator...
 r1735 {
return m_animation;
}
Jani Honkonen
pie: get rid of "Slot not implemented" warning...
 r1815 void PieChartItem::handleDomainUpdated()
{
Michal Klocek
Refactors internals...
 r2273 QRectF rect(QPointF(0,0),domain()->size());
if(m_rect!=rect){
prepareGeometryChange();
m_rect = rect;
updateLayout();
if (m_sliceItems.isEmpty())
handleSlicesAdded(m_series->slices());
}
Jani Honkonen
Remove scaledomain ect. warnings from pie. Not going to be implemented (for now at least).
 r1191 }
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 void PieChartItem::updateLayout()
Jani Honkonen
Refactoring pie series and animations.
 r621 {
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 // find pie center coordinates
m_pieCenter.setX(m_rect.left() + (m_rect.width() * m_series->horizontalPosition()));
m_pieCenter.setY(m_rect.top() + (m_rect.height() * m_series->verticalPosition()));
Jani Honkonen
Nicer animation for adding a pie initially.
 r634
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 // find maximum radius for pie
m_pieRadius = m_rect.height() / 2;
if (m_rect.width() < m_rect.height())
m_pieRadius = m_rect.width() / 2;
Marek Rosa
Donut support simplified. Examples updated
 r1838 m_holeSize = m_pieRadius;
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 // apply size factor
m_pieRadius *= m_series->pieSize();
Marek Rosa
Donut support simplified. Examples updated
 r1838 m_holeSize *= m_series->holeSize();
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074
// set layouts for existing slice items
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 foreach (QPieSlice *slice, m_series->slices()) {
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 PieSliceItem *sliceItem = m_sliceItems.value(slice);
if (sliceItem) {
PieSliceData sliceData = updateSliceGeometry(slice);
Jani Honkonen
astyle and manual coding style fixes for src-folder
 r2097 if (m_animation)
Michal Klocek
Refactor animator...
 r1735 presenter()->startAnimation(m_animation->updateValue(sliceItem, sliceData));
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 else
sliceItem->setLayout(sliceData);
}
}
update();
}
Jani Honkonen
more coding style fixes for src-folder...
 r2104 void PieChartItem::handleSlicesAdded(QList<QPieSlice *> slices)
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 {
Jani Honkonen
pie: fix bug with qmlchart demo...
 r1238 // delay creating slice items until there is a proper rectangle
if (!m_rect.isValid() && m_sliceItems.isEmpty())
return;
Michal Klocek
Refactors internals...
 r2273 themeManager()->updateSeries(m_series);
Jani Honkonen
Fix add/remove animation for pie and apply colors from theme when adding/removing
 r659
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 bool startupAnimation = m_sliceItems.isEmpty();
Jani Honkonen
Refactoring pie series and animations.
 r621
Jani Honkonen
more coding style fixes for src-folder...
 r2104 foreach(QPieSlice * slice, slices) {
PieSliceItem *sliceItem = new PieSliceItem(this);
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 m_sliceItems.insert(slice, sliceItem);
Jani Honkonen
pie: remove changed() signal and replace it with more refined signals...
 r1224
Tero Ahola
Removed unnecessary signals from QPieSlice
 r1494 // Note: no need to connect to slice valueChanged() etc.
Jani Honkonen
pie: added everything as a property in QPieSlice...
 r1274 // This is handled through calculatedDataChanged signal.
Jani Honkonen
pie: remove changed() signal and replace it with more refined signals...
 r1224 connect(slice, SIGNAL(labelChanged()), this, SLOT(handleSliceChanged()));
Jani Honkonen
pie: added everything as a property in QPieSlice...
 r1274 connect(slice, SIGNAL(labelVisibleChanged()), this, SLOT(handleSliceChanged()));
connect(slice, SIGNAL(penChanged()), this, SLOT(handleSliceChanged()));
connect(slice, SIGNAL(brushChanged()), this, SLOT(handleSliceChanged()));
Tero Ahola
Use labelBrush instead of labelPen for text labels
 r1307 connect(slice, SIGNAL(labelBrushChanged()), this, SLOT(handleSliceChanged()));
Jani Honkonen
pie: added everything as a property in QPieSlice...
 r1274 connect(slice, SIGNAL(labelFontChanged()), this, SLOT(handleSliceChanged()));
Tero Ahola
Removed unnecessary signals from QPieSlice
 r1494
QPieSlicePrivate *p = QPieSlicePrivate::fromSlice(slice);
connect(p, SIGNAL(labelPositionChanged()), this, SLOT(handleSliceChanged()));
connect(p, SIGNAL(explodedChanged()), this, SLOT(handleSliceChanged()));
connect(p, SIGNAL(labelArmLengthFactorChanged()), this, SLOT(handleSliceChanged()));
connect(p, SIGNAL(explodeDistanceFactorChanged()), this, SLOT(handleSliceChanged()));
Jani Honkonen
pie: added everything as a property in QPieSlice...
 r1274
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 connect(sliceItem, SIGNAL(clicked(Qt::MouseButtons)), slice, SIGNAL(clicked()));
connect(sliceItem, SIGNAL(hovered(bool)), slice, SIGNAL(hovered(bool)));
Titta Heikkala
Add pressed, released and doubleClicked signals...
 r2739 connect(sliceItem, SIGNAL(pressed(Qt::MouseButtons)), slice, SIGNAL(pressed()));
connect(sliceItem, SIGNAL(released(Qt::MouseButtons)), slice, SIGNAL(released()));
connect(sliceItem, SIGNAL(doubleClicked(Qt::MouseButtons)), slice, SIGNAL(doubleClicked()));
Jani Honkonen
Refactoring pie series and animations.
 r621
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 PieSliceData sliceData = updateSliceGeometry(slice);
Michal Klocek
Refactor animator...
 r1735 if (m_animation)
presenter()->startAnimation(m_animation->addSlice(sliceItem, sliceData, startupAnimation));
Jani Honkonen
Refactoring pie series and animations.
 r621 else
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 sliceItem->setLayout(sliceData);
Jani Honkonen
Refactoring pie series and animations.
 r621 }
}
Jani Honkonen
more coding style fixes for src-folder...
 r2104 void PieChartItem::handleSlicesRemoved(QList<QPieSlice *> slices)
Jani Honkonen
Refactoring pie series and animations.
 r621 {
Michal Klocek
Refactors internals...
 r2273 themeManager()->updateSeries(m_series);
Jani Honkonen
Fix add/remove animation for pie and apply colors from theme when adding/removing
 r659
Jani Honkonen
Refactor piechart to avoid using invalid QPieSlice pointers....
 r1053 foreach (QPieSlice *slice, slices) {
Jani Honkonen
tst_qpieseries: added XXXanimated tests...
 r1301
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 PieSliceItem *sliceItem = m_sliceItems.value(slice);
Jani Honkonen
tst_qpieseries: added XXXanimated tests...
 r1301
// this can happen if you call append() & remove() in a row so that PieSliceItem is not even created
if (!sliceItem)
continue;
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 m_sliceItems.remove(slice);
Jani Honkonen
bugfix: pie does not disconnect signals when a slice is taken (not deleted)
 r2084 slice->disconnect(this);
QPieSlicePrivate::fromSlice(slice)->disconnect(this);
Jani Honkonen
Refactor piechart to avoid using invalid QPieSlice pointers....
 r1053
Michal Klocek
Refactor animator...
 r1735 if (m_animation)
presenter()->startAnimation(m_animation->removeSlice(sliceItem)); // animator deletes the PieSliceItem
Jani Honkonen
Refactoring pie series and animations.
 r621 else
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 delete sliceItem;
Jani Honkonen
Refactoring pie series and animations.
 r621 }
}
Jani Honkonen
Rename piepresenter -> piechartitem
 r568 void PieChartItem::handleSliceChanged()
Jani Honkonen
Refactoring the pie for animations (no actual animations yet)
 r566 {
Jani Honkonen
more coding style fixes for src-folder...
 r2104 QPieSlice *slice = qobject_cast<QPieSlice *>(sender());
Tero Ahola
Removed unnecessary signals from QPieSlice
 r1494 if (!slice) {
Jani Honkonen
more coding style fixes for src-folder...
 r2104 QPieSlicePrivate *slicep = qobject_cast<QPieSlicePrivate *>(sender());
Tero Ahola
Removed unnecessary signals from QPieSlice
 r1494 slice = slicep->q_ptr;
}
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 Q_ASSERT(m_sliceItems.contains(slice));
Jani Honkonen
Added a pie chart customization example and refactoring the pie interface.
 r437
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 PieSliceItem *sliceItem = m_sliceItems.value(slice);
PieSliceData sliceData = updateSliceGeometry(slice);
Michal Klocek
Refactor animator...
 r1735 if (m_animation)
presenter()->startAnimation(m_animation->updateValue(sliceItem, sliceData));
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 else
sliceItem->setLayout(sliceData);
Jani Honkonen
Added a pie chart customization example and refactoring the pie interface.
 r437
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 update();
Jani Honkonen
Refactoring pie series and animations.
 r621 }
Jani Honkonen
Added a pie chart customization example and refactoring the pie interface.
 r437
Jani Honkonen
pie: implement hiding the series
 r1456 void PieChartItem::handleSeriesVisibleChanged()
{
setVisible(m_series->isVisible());
}
Tero Ahola
Added opacity property to QAbstractSeries
 r2067 void PieChartItem::handleOpacityChanged()
{
setOpacity(m_series->opacity());
}
Jani Honkonen
Refactor graphical side of pie to simplify the implementation.
 r1074 PieSliceData PieChartItem::updateSliceGeometry(QPieSlice *slice)
Jani Honkonen
Refactoring pie series and animations.
 r621 {
Jani Honkonen
pie: added everything as a property in QPieSlice...
 r1274 PieSliceData &sliceData = QPieSlicePrivate::fromSlice(slice)->m_data;
Jani Honkonen
rename PieSlice -> PieSliceItem
 r673 sliceData.m_center = PieSliceItem::sliceCenter(m_pieCenter, m_pieRadius, slice);
Jani Honkonen
Rename PieSliceLayout -> PieSliceData. A "layout" is a bad name for this.
 r668 sliceData.m_radius = m_pieRadius;
Marek Rosa
Donut support simplified. Examples updated
 r1838 sliceData.m_holeRadius = m_holeSize;
Jani Honkonen
Rename PieSliceLayout -> PieSliceData. A "layout" is a bad name for this.
 r668 return sliceData;
Jani Honkonen
Refactoring pie series and animations.
 r621 }
Jani Honkonen
Rename piepresenter -> piechartitem
 r568 #include "moc_piechartitem_p.cpp"
Jani Honkonen
Pie chart refactoring
 r142
Titta Heikkala
Qt Charts project file structure change...
 r2712 QT_CHARTS_END_NAMESPACE