abstractbarchartitem.cpp
179 lines
| 5.1 KiB
| text/x-c
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CppLexer
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r1674 | /**************************************************************************** | ||
** | ||||
** 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 "abstractbarchartitem_p.h" | ||||
#include "bar_p.h" | ||||
#include "qbarset.h" | ||||
#include "qbarset_p.h" | ||||
#include "qabstractbarseries.h" | ||||
#include "qabstractbarseries_p.h" | ||||
#include "qchart.h" | ||||
#include "chartpresenter_p.h" | ||||
#include "chartanimator_p.h" | ||||
#include "abstractbaranimation_p.h" | ||||
#include "chartdataset_p.h" | ||||
#include <QPainter> | ||||
QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
AbstractBarChartItem::AbstractBarChartItem(QAbstractBarSeries *series, ChartPresenter *presenter) : | ||||
ChartItem(presenter), | ||||
m_animation(0), | ||||
m_series(series) | ||||
{ | ||||
setFlag(ItemClipsChildrenToShape); | ||||
connect(series->d_func(), SIGNAL(updatedBars()), this, SLOT(handleLayoutChanged())); | ||||
connect(series->d_func(), SIGNAL(labelsVisibleChanged(bool)), this, SLOT(handleLabelsVisibleChanged(bool))); | ||||
connect(series->d_func(), SIGNAL(restructuredBars()), this, SLOT(handleDataStructureChanged())); | ||||
connect(series, SIGNAL(visibleChanged()), this, SLOT(handleVisibleChanged())); | ||||
setZValue(ChartPresenter::BarSeriesZValue); | ||||
handleDataStructureChanged(); | ||||
} | ||||
AbstractBarChartItem::~AbstractBarChartItem() | ||||
{ | ||||
} | ||||
void AbstractBarChartItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) | ||||
{ | ||||
Q_UNUSED(painter); | ||||
Q_UNUSED(option); | ||||
Q_UNUSED(widget); | ||||
} | ||||
QRectF AbstractBarChartItem::boundingRect() const | ||||
{ | ||||
return m_rect; | ||||
} | ||||
void AbstractBarChartItem::applyLayout(const QVector<QRectF> &layout) | ||||
{ | ||||
if (m_animation) { | ||||
m_animation->setup(m_layout,layout); | ||||
presenter()->startAnimation(m_animation); | ||||
} else { | ||||
setLayout(layout); | ||||
update(); | ||||
} | ||||
} | ||||
void AbstractBarChartItem::setAnimation(AbstractBarAnimation *animation) | ||||
{ | ||||
m_animation = animation; | ||||
} | ||||
void AbstractBarChartItem::setLayout(const QVector<QRectF> &layout) | ||||
{ | ||||
if (layout.count() != m_bars.count()) | ||||
return; | ||||
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r1698 | m_layout = layout; | ||
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r1674 | |||
for (int i=0; i < m_bars.count(); i++) { | ||||
m_bars.at(i)->setRect(layout.at(i)); | ||||
} | ||||
} | ||||
//handlers | ||||
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r1698 | void AbstractBarChartItem::handleDomainUpdated() | ||
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r1674 | { | ||
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r1698 | m_domainMinX = domain()->minX(); | ||
m_domainMaxX = domain()->maxX(); | ||||
m_domainMinY = domain()->minY(); | ||||
m_domainMaxY = domain()->maxY(); | ||||
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r1674 | handleLayoutChanged(); | ||
} | ||||
void AbstractBarChartItem::handleGeometryChanged(const QRectF &rect) | ||||
{ | ||||
prepareGeometryChange(); | ||||
m_rect = rect; | ||||
handleLayoutChanged(); | ||||
} | ||||
void AbstractBarChartItem::handleLayoutChanged() | ||||
{ | ||||
if ((m_rect.width() <= 0) || (m_rect.height() <= 0)) { | ||||
// rect size zero. | ||||
return; | ||||
} | ||||
QVector<QRectF> layout = calculateLayout(); | ||||
applyLayout(layout); | ||||
} | ||||
void AbstractBarChartItem::handleLabelsVisibleChanged(bool visible) | ||||
{ | ||||
foreach (QGraphicsSimpleTextItem* label, m_labels) { | ||||
label->setVisible(visible); | ||||
} | ||||
update(); | ||||
} | ||||
void AbstractBarChartItem::handleDataStructureChanged() | ||||
{ | ||||
foreach(QGraphicsItem *item, childItems()) { | ||||
delete item; | ||||
} | ||||
m_bars.clear(); | ||||
m_labels.clear(); | ||||
m_layout.clear(); | ||||
bool labelsVisible = m_series->isLabelsVisible(); | ||||
// Create new graphic items for bars | ||||
for (int c = 0; c < m_series->d_func()->categoryCount(); c++) { | ||||
for (int s = 0; s < m_series->count(); s++) { | ||||
QBarSet *set = m_series->d_func()->barsetAt(s); | ||||
// Bars | ||||
Bar *bar = new Bar(set,c,this); | ||||
m_bars.append(bar); | ||||
connect(bar, SIGNAL(clicked(int, QBarSet*)), m_series, SIGNAL(clicked(int, QBarSet*))); | ||||
connect(bar, SIGNAL(hovered(bool, QBarSet*)), m_series, SIGNAL(hovered(bool, QBarSet*))); | ||||
connect(bar, SIGNAL(clicked(int, QBarSet*)), set, SIGNAL(clicked(int))); | ||||
connect(bar, SIGNAL(hovered(bool, QBarSet*)), set, SIGNAL(hovered(bool))); | ||||
m_layout.append(QRectF(0, 0, 0, 0)); | ||||
// Labels | ||||
QGraphicsSimpleTextItem *label = new QGraphicsSimpleTextItem(this); | ||||
label->setVisible(labelsVisible); | ||||
m_labels.append(label); | ||||
} | ||||
} | ||||
// TODO: Is this the right place to call it? | ||||
presenter()->chartTheme()->decorate(m_series, presenter()->dataSet()->seriesIndex(m_series)); | ||||
handleLayoutChanged(); | ||||
} | ||||
void AbstractBarChartItem::handleVisibleChanged() | ||||
{ | ||||
bool visible = m_series->isVisible(); | ||||
handleLabelsVisibleChanged(visible); | ||||
foreach(QGraphicsItem *item, childItems()) { | ||||
item->setVisible(visible); | ||||
} | ||||
} | ||||
#include "moc_abstractbarchartitem_p.cpp" | ||||
QTCOMMERCIALCHART_END_NAMESPACE | ||||