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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "abstractbarchartitem_p.h"
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#include "bar_p.h"
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#include "qbarset.h"
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#include "qbarset_p.h"
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#include "qabstractbarseries.h"
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#include "qabstractbarseries_p.h"
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#include "qchart.h"
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#include "chartpresenter_p.h"
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#include "charttheme_p.h"
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#include "abstractbaranimation_p.h"
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#include "chartdataset_p.h"
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#include <QPainter>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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AbstractBarChartItem::AbstractBarChartItem(QAbstractBarSeries *series, ChartPresenter *presenter) :
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ChartItem(presenter),
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m_animation(0),
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m_series(series)
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{
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setFlag(ItemClipsChildrenToShape);
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connect(series->d_func(), SIGNAL(updatedLayout()), this, SLOT(handleLayoutChanged()));
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connect(series->d_func(), SIGNAL(updatedBars()), this, SLOT(handleUpdatedBars()));
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connect(series->d_func(), SIGNAL(labelsVisibleChanged(bool)), this, SLOT(handleLabelsVisibleChanged(bool)));
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connect(series->d_func(), SIGNAL(restructuredBars()), this, SLOT(handleDataStructureChanged()));
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connect(series, SIGNAL(visibleChanged()), this, SLOT(handleVisibleChanged()));
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setZValue(ChartPresenter::BarSeriesZValue);
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handleDataStructureChanged();
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}
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AbstractBarChartItem::~AbstractBarChartItem()
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{
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}
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void AbstractBarChartItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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Q_UNUSED(painter);
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Q_UNUSED(option);
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Q_UNUSED(widget);
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}
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QRectF AbstractBarChartItem::boundingRect() const
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{
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return m_rect;
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}
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void AbstractBarChartItem::applyLayout(const QVector<QRectF> &layout)
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{
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if (m_animation) {
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m_animation->setup(m_layout,layout);
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presenter()->startAnimation(m_animation);
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} else {
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setLayout(layout);
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update();
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}
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}
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void AbstractBarChartItem::setAnimation(AbstractBarAnimation *animation)
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{
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m_animation = animation;
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}
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void AbstractBarChartItem::setLayout(const QVector<QRectF> &layout)
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{
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if (layout.count() != m_bars.count())
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return;
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m_layout = layout;
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for (int i=0; i < m_bars.count(); i++) {
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m_bars.at(i)->setRect(layout.at(i));
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}
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}
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//handlers
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void AbstractBarChartItem::handleDomainUpdated()
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{
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m_domainMinX = domain()->minX();
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m_domainMaxX = domain()->maxX();
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m_domainMinY = domain()->minY();
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m_domainMaxY = domain()->maxY();
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handleLayoutChanged();
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}
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void AbstractBarChartItem::handleGeometryChanged(const QRectF &rect)
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{
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prepareGeometryChange();
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m_rect = rect;
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handleLayoutChanged();
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}
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void AbstractBarChartItem::handleLayoutChanged()
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{
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if ((m_rect.width() <= 0) || (m_rect.height() <= 0)) {
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// rect size zero.
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return;
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}
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QVector<QRectF> layout = calculateLayout();
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applyLayout(layout);
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}
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void AbstractBarChartItem::handleLabelsVisibleChanged(bool visible)
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{
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foreach (QGraphicsSimpleTextItem* label, m_labels) {
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label->setVisible(visible);
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}
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update();
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}
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void AbstractBarChartItem::handleDataStructureChanged()
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{
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foreach(QGraphicsItem *item, childItems()) {
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delete item;
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}
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m_bars.clear();
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m_labels.clear();
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m_layout.clear();
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bool labelsVisible = m_series->isLabelsVisible();
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// Create new graphic items for bars
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for (int c = 0; c < m_series->d_func()->categoryCount(); c++) {
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for (int s = 0; s < m_series->count(); s++) {
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QBarSet *set = m_series->d_func()->barsetAt(s);
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// Bars
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Bar *bar = new Bar(set,c,this);
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m_bars.append(bar);
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connect(bar, SIGNAL(clicked(int,QBarSet*)), m_series, SIGNAL(clicked(int,QBarSet*)));
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connect(bar, SIGNAL(hovered(bool,QBarSet*)), m_series, SIGNAL(hovered(bool,QBarSet*)));
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connect(bar, SIGNAL(clicked(int,QBarSet*)), set, SIGNAL(clicked(int)));
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connect(bar, SIGNAL(hovered(bool,QBarSet*)), set, SIGNAL(hovered(bool)));
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m_layout.append(QRectF(0, 0, 0, 0));
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// Labels
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QGraphicsSimpleTextItem *label = new QGraphicsSimpleTextItem(this);
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label->setVisible(labelsVisible);
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m_labels.append(label);
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}
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}
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presenter()->chartTheme()->decorate(m_series, presenter()->dataSet()->seriesIndex(m_series));
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handleLayoutChanged();
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}
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void AbstractBarChartItem::handleVisibleChanged()
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{
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bool visible = m_series->isVisible();
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handleLabelsVisibleChanged(visible);
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foreach(QGraphicsItem *item, childItems()) {
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item->setVisible(visible);
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}
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}
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void AbstractBarChartItem::handleUpdatedBars()
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{
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// Handle changes in pen, brush, labels etc.
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int categoryCount = m_series->d_func()->categoryCount();
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int setCount = m_series->count();
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int itemIndex(0);
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for (int category = 0; category < categoryCount; category++) {
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for (int set = 0; set < setCount; set++) {
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QBarSetPrivate* barSet = m_series->d_func()->barsetAt(set)->d_ptr.data();
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Bar* bar = m_bars.at(itemIndex);
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bar->setPen(barSet->m_pen);
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bar->setBrush(barSet->m_brush);
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bar->update();
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QGraphicsSimpleTextItem* label = m_labels.at(itemIndex);
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label->setFont(barSet->m_labelFont);
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label->setBrush(barSet->m_labelBrush);
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label->update();
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itemIndex++;
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}
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}
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}
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#include "moc_abstractbarchartitem_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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