piechartitem.cpp
242 lines
| 8.6 KiB
| text/x-c
|
CppLexer
Miikka Heikkinen
|
r2854 | /**************************************************************************** | ||
Jani Honkonen
|
r794 | ** | ||
|
Miikka Heikkinen
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r2854 | ** Copyright (C) 2016 The Qt Company Ltd. | ||
| ** Contact: https://www.qt.io/licensing/ | ||||
|
Jani Honkonen
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r794 | ** | ||
|
Miikka Heikkinen
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r2854 | ** This file is part of the Qt Charts module of the Qt Toolkit. | ||
|
Jani Honkonen
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r794 | ** | ||
|
Miikka Heikkinen
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r2854 | ** $QT_BEGIN_LICENSE:GPL$ | ||
Titta Heikkala
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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 | ||||
|
Miikka Heikkinen
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r2854 | ** and conditions see https://www.qt.io/terms-conditions. For further | ||
| ** information use the contact form at https://www.qt.io/contact-us. | ||||
| ** | ||||
| ** GNU General Public License Usage | ||||
| ** Alternatively, this file may be used under the terms of the GNU | ||||
| ** General Public License version 3 or (at your option) any later version | ||||
| ** approved by the KDE Free Qt Foundation. The licenses are as published by | ||||
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 | ||||
| ** included in the packaging of this file. Please review the following | ||||
| ** information to ensure the GNU General Public License requirements will | ||||
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. | ||||
|
Jani Honkonen
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r794 | ** | ||
|
Titta Heikkala
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r2845 | ** $QT_END_LICENSE$ | ||
| ** | ||||
|
Miikka Heikkinen
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r2854 | ****************************************************************************/ | ||
|
Jani Honkonen
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r794 | |||
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Titta Heikkala
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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> | ||||
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Jani Honkonen
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r142 | |||
Titta Heikkala
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r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
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Jani Honkonen
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r142 | |||
Michal Klocek
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r2273 | PieChartItem::PieChartItem(QPieSeries *series, QGraphicsItem* item) | ||
| : ChartItem(series->d_func(),item), | ||||
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Jani Honkonen
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r2097 | m_series(series), | ||
| m_animation(0) | ||||
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Jani Honkonen
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r142 | { | ||
| Q_ASSERT(series); | ||||
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Jani Honkonen
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r1009 | |||
Tero Ahola
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r1482 | QPieSeriesPrivate *p = QPieSeriesPrivate::fromSeries(series); | ||
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Jani Honkonen
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r1456 | connect(series, SIGNAL(visibleChanged()), this, SLOT(handleSeriesVisibleChanged())); | ||
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Tero Ahola
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r2067 | connect(series, SIGNAL(opacityChanged()), this, SLOT(handleOpacityChanged())); | ||
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Jani Honkonen
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r1213 | connect(series, SIGNAL(added(QList<QPieSlice*>)), this, SLOT(handleSlicesAdded(QList<QPieSlice*>))); | ||
| connect(series, SIGNAL(removed(QList<QPieSlice*>)), this, SLOT(handleSlicesRemoved(QList<QPieSlice*>))); | ||||
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Tero Ahola
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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())); | ||||
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Jani Honkonen
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r621 | |||
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Tero Ahola
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r490 | // Note: the following does not affect as long as the item does not have anything to paint | ||
| setZValue(ChartPresenter::PieSeriesZValue); | ||||
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Jani Honkonen
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r1238 | |||
| // Note: will not create slice items until we have a proper rectangle to draw on. | ||||
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Titta Heikkala
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r2739 | |||
| setFlag(QGraphicsItem::ItemIsSelectable); | ||||
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Jani Honkonen
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r142 | } | ||
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Jani Honkonen
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r568 | PieChartItem::~PieChartItem() | ||
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Jani Honkonen
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r142 | { | ||
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Jani Honkonen
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r174 | // slices deleted automatically through QGraphicsItem | ||
Miikka Heikkinen
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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
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r142 | } | ||
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Jani Honkonen
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r2104 | void PieChartItem::setAnimation(PieAnimation *animation) | ||
|
Michal Klocek
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r1735 | { | ||
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Jani Honkonen
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r2097 | m_animation = animation; | ||
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Michal Klocek
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r1735 | } | ||
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Jani Honkonen
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r2104 | ChartAnimation *PieChartItem::animation() const | ||
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Michal Klocek
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r1735 | { | ||
| return m_animation; | ||||
| } | ||||
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Jani Honkonen
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r1815 | void PieChartItem::handleDomainUpdated() | ||
| { | ||||
|
Michal Klocek
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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()); | ||||
| } | ||||
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Jani Honkonen
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r1191 | } | ||
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Jani Honkonen
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r1074 | void PieChartItem::updateLayout() | ||
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Jani Honkonen
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r621 | { | ||
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Jani Honkonen
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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())); | ||||
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Jani Honkonen
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r634 | |||
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Jani Honkonen
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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
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r1838 | m_holeSize = m_pieRadius; | ||
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Jani Honkonen
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r1074 | // apply size factor | ||
| m_pieRadius *= m_series->pieSize(); | ||||
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Marek Rosa
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r1838 | m_holeSize *= m_series->holeSize(); | ||
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Jani Honkonen
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r1074 | |||
| // set layouts for existing slice items | ||||
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Jani Honkonen
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r2097 | foreach (QPieSlice *slice, m_series->slices()) { | ||
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Jani Honkonen
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r1074 | PieSliceItem *sliceItem = m_sliceItems.value(slice); | ||
| if (sliceItem) { | ||||
| PieSliceData sliceData = updateSliceGeometry(slice); | ||||
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Jani Honkonen
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r2097 | if (m_animation) | ||
|
Michal Klocek
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r1735 | presenter()->startAnimation(m_animation->updateValue(sliceItem, sliceData)); | ||
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Jani Honkonen
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r1074 | else | ||
| sliceItem->setLayout(sliceData); | ||||
| } | ||||
| } | ||||
| update(); | ||||
| } | ||||
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Jani Honkonen
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r2104 | void PieChartItem::handleSlicesAdded(QList<QPieSlice *> slices) | ||
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Jani Honkonen
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r1074 | { | ||
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Jani Honkonen
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r1238 | // delay creating slice items until there is a proper rectangle | ||
| if (!m_rect.isValid() && m_sliceItems.isEmpty()) | ||||
| return; | ||||
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Michal Klocek
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r2273 | themeManager()->updateSeries(m_series); | ||
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Jani Honkonen
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r659 | |||
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Jani Honkonen
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r1074 | bool startupAnimation = m_sliceItems.isEmpty(); | ||
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Jani Honkonen
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r621 | |||
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Jani Honkonen
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r2104 | foreach(QPieSlice * slice, slices) { | ||
| PieSliceItem *sliceItem = new PieSliceItem(this); | ||||
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Jani Honkonen
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r1074 | m_sliceItems.insert(slice, sliceItem); | ||
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Jani Honkonen
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r1224 | |||
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Tero Ahola
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r1494 | // Note: no need to connect to slice valueChanged() etc. | ||
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Jani Honkonen
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r1274 | // This is handled through calculatedDataChanged signal. | ||
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Jani Honkonen
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r1224 | connect(slice, SIGNAL(labelChanged()), this, SLOT(handleSliceChanged())); | ||
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Jani Honkonen
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r1274 | connect(slice, SIGNAL(labelVisibleChanged()), this, SLOT(handleSliceChanged())); | ||
| connect(slice, SIGNAL(penChanged()), this, SLOT(handleSliceChanged())); | ||||
| connect(slice, SIGNAL(brushChanged()), this, SLOT(handleSliceChanged())); | ||||
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Tero Ahola
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r1307 | connect(slice, SIGNAL(labelBrushChanged()), this, SLOT(handleSliceChanged())); | ||
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Jani Honkonen
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r1274 | connect(slice, SIGNAL(labelFontChanged()), this, SLOT(handleSliceChanged())); | ||
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Tero Ahola
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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())); | ||||
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Jani Honkonen
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r1274 | |||
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Jani Honkonen
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r1074 | connect(sliceItem, SIGNAL(clicked(Qt::MouseButtons)), slice, SIGNAL(clicked())); | ||
| connect(sliceItem, SIGNAL(hovered(bool)), slice, SIGNAL(hovered(bool))); | ||||
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Titta Heikkala
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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())); | ||||
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Jani Honkonen
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r621 | |||
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Jani Honkonen
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r1074 | PieSliceData sliceData = updateSliceGeometry(slice); | ||
|
Michal Klocek
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r1735 | if (m_animation) | ||
| presenter()->startAnimation(m_animation->addSlice(sliceItem, sliceData, startupAnimation)); | ||||
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Jani Honkonen
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r621 | else | ||
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Jani Honkonen
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r1074 | sliceItem->setLayout(sliceData); | ||
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Jani Honkonen
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r621 | } | ||
| } | ||||
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Jani Honkonen
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r2104 | void PieChartItem::handleSlicesRemoved(QList<QPieSlice *> slices) | ||
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Jani Honkonen
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r621 | { | ||
|
Michal Klocek
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r2273 | themeManager()->updateSeries(m_series); | ||
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Jani Honkonen
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r659 | |||
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Jani Honkonen
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r1053 | foreach (QPieSlice *slice, slices) { | ||
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Jani Honkonen
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r1301 | |||
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Jani Honkonen
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r1074 | PieSliceItem *sliceItem = m_sliceItems.value(slice); | ||
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Jani Honkonen
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r1301 | |||
| // this can happen if you call append() & remove() in a row so that PieSliceItem is not even created | ||||
| if (!sliceItem) | ||||
| continue; | ||||
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Jani Honkonen
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r1074 | m_sliceItems.remove(slice); | ||
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Jani Honkonen
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r2084 | slice->disconnect(this); | ||
| QPieSlicePrivate::fromSlice(slice)->disconnect(this); | ||||
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Jani Honkonen
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r1053 | |||
|
Michal Klocek
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r1735 | if (m_animation) | ||
| presenter()->startAnimation(m_animation->removeSlice(sliceItem)); // animator deletes the PieSliceItem | ||||
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Jani Honkonen
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r621 | else | ||
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Jani Honkonen
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r1074 | delete sliceItem; | ||
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Jani Honkonen
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r621 | } | ||
| } | ||||
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Jani Honkonen
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r568 | void PieChartItem::handleSliceChanged() | ||
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Jani Honkonen
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r566 | { | ||
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Jani Honkonen
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r2104 | QPieSlice *slice = qobject_cast<QPieSlice *>(sender()); | ||
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Tero Ahola
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r1494 | if (!slice) { | ||
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Jani Honkonen
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r2104 | QPieSlicePrivate *slicep = qobject_cast<QPieSlicePrivate *>(sender()); | ||
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Tero Ahola
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r1494 | slice = slicep->q_ptr; | ||
| } | ||||
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Jani Honkonen
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r1074 | Q_ASSERT(m_sliceItems.contains(slice)); | ||
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Jani Honkonen
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r437 | |||
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Jani Honkonen
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r1074 | PieSliceItem *sliceItem = m_sliceItems.value(slice); | ||
| PieSliceData sliceData = updateSliceGeometry(slice); | ||||
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Michal Klocek
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r1735 | if (m_animation) | ||
| presenter()->startAnimation(m_animation->updateValue(sliceItem, sliceData)); | ||||
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Jani Honkonen
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r1074 | else | ||
| sliceItem->setLayout(sliceData); | ||||
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Jani Honkonen
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r437 | |||
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Jani Honkonen
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r1074 | update(); | ||
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Jani Honkonen
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r621 | } | ||
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Jani Honkonen
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r437 | |||
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Jani Honkonen
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r1456 | void PieChartItem::handleSeriesVisibleChanged() | ||
| { | ||||
| setVisible(m_series->isVisible()); | ||||
| } | ||||
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Tero Ahola
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r2067 | void PieChartItem::handleOpacityChanged() | ||
| { | ||||
| setOpacity(m_series->opacity()); | ||||
| } | ||||
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Jani Honkonen
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r1074 | PieSliceData PieChartItem::updateSliceGeometry(QPieSlice *slice) | ||
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Jani Honkonen
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r621 | { | ||
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Jani Honkonen
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r1274 | PieSliceData &sliceData = QPieSlicePrivate::fromSlice(slice)->m_data; | ||
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Jani Honkonen
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r673 | sliceData.m_center = PieSliceItem::sliceCenter(m_pieCenter, m_pieRadius, slice); | ||
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Jani Honkonen
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r668 | sliceData.m_radius = m_pieRadius; | ||
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Marek Rosa
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r1838 | sliceData.m_holeRadius = m_holeSize; | ||
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Jani Honkonen
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r668 | return sliceData; | ||
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Jani Honkonen
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r621 | } | ||
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Jani Honkonen
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r568 | #include "moc_piechartitem_p.cpp" | ||
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Jani Honkonen
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r142 | |||
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Titta Heikkala
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r2712 | QT_CHARTS_END_NAMESPACE | ||