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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 "qchart.h"
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#include "qchart_p.h"
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#include "qchartaxis.h"
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#include "chartpresenter_p.h"
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#include "chartdataset_p.h"
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#include "charttheme_p.h"
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#include "chartanimator_p.h"
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//series
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#include "qbarseries.h"
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#include "qstackedbarseries.h"
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#include "qpercentbarseries.h"
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#include "qlineseries.h"
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#include "qareaseries.h"
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#include "qpieseries.h"
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#include "qscatterseries.h"
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#include "qsplineseries.h"
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//items
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#include "axisitem_p.h"
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#include "areachartitem_p.h"
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#include "barchartitem_p.h"
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#include "stackedbarchartitem_p.h"
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#include "percentbarchartitem_p.h"
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#include "linechartitem_p.h"
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#include "piechartitem_p.h"
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#include "scatterchartitem_p.h"
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#include "splinechartitem_p.h"
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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ChartPresenter::ChartPresenter(QChart* chart,ChartDataSet* dataset):QObject(chart),
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m_chart(chart),
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m_animator(0),
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m_dataset(dataset),
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m_chartTheme(0),
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m_chartRect(QRectF(QPoint(0,0),m_chart->size())),
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m_options(QChart::NoAnimation),
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m_themeForce(false),
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m_minLeftMargin(0),
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m_minBottomMargin(0),
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m_backgroundItem(0),
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m_titleItem(0),
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m_marginBig(60),
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m_marginSmall(20),
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m_marginTiny(10),
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m_chartMargins(QRect(m_marginBig,m_marginBig,0,0))
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{
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}
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ChartPresenter::~ChartPresenter()
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{
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delete m_chartTheme;
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}
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void ChartPresenter::setGeometry(const QRectF& rect)
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{
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m_rect = rect;
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Q_ASSERT(m_rect.isValid());
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updateLayout();
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}
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void ChartPresenter::setMinimumMarginWidth(Axis* axis, qreal width)
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{
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switch(axis->axisType()){
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case Axis::X_AXIS:
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{
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if(width>m_chartRect.width()+ m_chartMargins.left()) {
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m_minLeftMargin= width - m_chartRect.width();
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updateLayout();
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}
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break;
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}
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case Axis::Y_AXIS:
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{
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if(m_minLeftMargin!=width){
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m_minLeftMargin= width;
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updateLayout();
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}
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break;
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}
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}
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}
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void ChartPresenter::setMinimumMarginHeight(Axis* axis, qreal height)
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{
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switch(axis->axisType()){
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case Axis::X_AXIS:
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{
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if(m_minBottomMargin!=height) {
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m_minBottomMargin= height;
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updateLayout();
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}
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break;
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}
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case Axis::Y_AXIS:
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{
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if(height>m_chartMargins.bottom()+m_chartRect.height()){
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m_minBottomMargin= height - m_chartRect.height();
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updateLayout();
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}
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break;
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}
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}
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}
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void ChartPresenter::handleAxisAdded(QChartAxis* axis,Domain* domain)
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{
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Axis* item = new Axis(axis,this,axis==m_dataset->axisX()?Axis::X_AXIS : Axis::Y_AXIS);
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if(m_options.testFlag(QChart::GridAxisAnimations)){
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m_animator->addAnimation(item);
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}
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if(axis==m_dataset->axisX()){
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m_chartTheme->decorate(axis,true,m_themeForce);
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QObject::connect(domain,SIGNAL(rangeXChanged(qreal,qreal,int)),item,SLOT(handleRangeChanged(qreal,qreal,int)));
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//initialize
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item->handleRangeChanged(domain->minX(),domain->maxX(),domain->tickXCount());
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}
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else{
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m_chartTheme->decorate(axis,false,m_themeForce);
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QObject::connect(domain,SIGNAL(rangeYChanged(qreal,qreal,int)),item,SLOT(handleRangeChanged(qreal,qreal,int)));
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//initialize
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item->handleRangeChanged(domain->minY(),domain->maxY(),domain->tickYCount());
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}
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QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),item,SLOT(handleGeometryChanged(const QRectF&)));
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//initialize
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item->handleGeometryChanged(m_chartRect);
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m_axisItems.insert(axis, item);
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}
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void ChartPresenter::handleAxisRemoved(QChartAxis* axis)
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{
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Axis* item = m_axisItems.take(axis);
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Q_ASSERT(item);
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if(m_animator) m_animator->removeAnimation(item);
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delete item;
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}
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void ChartPresenter::handleSeriesAdded(QSeries* series,Domain* domain)
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{
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Chart *item = 0 ;
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switch(series->type())
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{
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case QSeries::SeriesTypeLine: {
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QLineSeries* lineSeries = static_cast<QLineSeries*>(series);
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LineChartItem* line = new LineChartItem(lineSeries,this);
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if(m_options.testFlag(QChart::SeriesAnimations)) {
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m_animator->addAnimation(line);
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}
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m_chartTheme->decorate(lineSeries, m_dataset->seriesIndex(series),m_themeForce);
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QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),line,SLOT(handleGeometryChanged(const QRectF&)));
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QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),line,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
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item = line;
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break;
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}
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case QSeries::SeriesTypeArea: {
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QAreaSeries* areaSeries = static_cast<QAreaSeries*>(series);
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AreaChartItem* area = new AreaChartItem(areaSeries,this);
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if(m_options.testFlag(QChart::SeriesAnimations)) {
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m_animator->addAnimation(area->upperLineItem());
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if(areaSeries->lowerSeries()) m_animator->addAnimation(area->lowerLineItem());
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}
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m_chartTheme->decorate(areaSeries, m_dataset->seriesIndex(series),m_themeForce);
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QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),area,SLOT(handleGeometryChanged(const QRectF&)));
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QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),area,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
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item=area;
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break;
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}
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case QSeries::SeriesTypeBar: {
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QBarSeries* barSeries = static_cast<QBarSeries*>(series);
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BarChartItem* bar = new BarChartItem(barSeries,this);
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if(m_options.testFlag(QChart::SeriesAnimations)) {
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m_animator->addAnimation(bar);
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}
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m_chartTheme->decorate(barSeries, m_dataset->seriesIndex(barSeries),m_themeForce);
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QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),bar,SLOT(handleGeometryChanged(const QRectF&)));
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QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),bar,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
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item=bar;
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break;
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}
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case QSeries::SeriesTypeStackedBar: {
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QStackedBarSeries* stackedBarSeries = static_cast<QStackedBarSeries*>(series);
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StackedBarChartItem* bar = new StackedBarChartItem(stackedBarSeries,this);
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if(m_options.testFlag(QChart::SeriesAnimations)) {
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m_animator->addAnimation(bar);
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}
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m_chartTheme->decorate(stackedBarSeries, m_dataset->seriesIndex(stackedBarSeries),m_themeForce);
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QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),bar,SLOT(handleGeometryChanged(const QRectF&)));
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QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),bar,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
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item=bar;
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break;
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}
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case QSeries::SeriesTypePercentBar: {
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QPercentBarSeries* percentBarSeries = static_cast<QPercentBarSeries*>(series);
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PercentBarChartItem* bar = new PercentBarChartItem(percentBarSeries,this);
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if(m_options.testFlag(QChart::SeriesAnimations)) {
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m_animator->addAnimation(bar);
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}
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m_chartTheme->decorate(percentBarSeries, m_dataset->seriesIndex(percentBarSeries),m_themeForce);
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QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),bar,SLOT(handleGeometryChanged(const QRectF&)));
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QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),bar,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
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item=bar;
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break;
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}
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case QSeries::SeriesTypeScatter: {
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QScatterSeries *scatterSeries = static_cast<QScatterSeries *>(series);
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ScatterChartItem *scatter = new ScatterChartItem(scatterSeries,this);
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if(m_options.testFlag(QChart::SeriesAnimations)) {
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m_animator->addAnimation(scatter);
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}
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m_chartTheme->decorate(scatterSeries, m_dataset->seriesIndex(series),m_themeForce);
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QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),scatter,SLOT(handleGeometryChanged(const QRectF&)));
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QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),scatter,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
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item = scatter;
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break;
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}
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case QSeries::SeriesTypePie: {
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QPieSeries *pieSeries = static_cast<QPieSeries *>(series);
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PieChartItem* pie = new PieChartItem(pieSeries, this);
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if(m_options.testFlag(QChart::SeriesAnimations)) {
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m_animator->addAnimation(pie);
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}
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m_chartTheme->decorate(pieSeries, m_dataset->seriesIndex(series),m_themeForce);
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QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),pie,SLOT(handleGeometryChanged(const QRectF&)));
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QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),pie,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
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// Hide all from background when there is only piechart
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// TODO: refactor this ugly code... should be one setting for this
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if (m_chartItems.count() == 0) {
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m_chart->axisX()->hide();
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m_chart->axisY()->hide();
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}
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item=pie;
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break;
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}
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case QSeries::SeriesTypeSpline: {
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QSplineSeries* splineSeries = static_cast<QSplineSeries*>(series);
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SplineChartItem* spline = new SplineChartItem(splineSeries, this);
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if(m_options.testFlag(QChart::SeriesAnimations)) {
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m_animator->addAnimation(spline);
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}
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m_chartTheme->decorate(splineSeries, m_dataset->seriesIndex(series),m_themeForce);
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QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),spline,SLOT(handleGeometryChanged(const QRectF&)));
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QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),spline,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
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item=spline;
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break;
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}
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default: {
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qDebug()<< "Series type" << series->type() << "not implemented.";
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break;
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}
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}
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//initialize
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item->handleDomainChanged(domain->minX(),domain->maxX(),domain->minY(),domain->maxY());
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if(m_chartRect.isValid()) item->handleGeometryChanged(m_chartRect);
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m_chartItems.insert(series,item);
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}
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void ChartPresenter::handleSeriesRemoved(QSeries* series)
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{
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Chart* item = m_chartItems.take(series);
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Q_ASSERT(item);
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if(m_animator) {
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//small hack to handle area animations
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if(series->type()==QSeries::SeriesTypeArea){
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QAreaSeries* areaSeries = static_cast<QAreaSeries*>(series);
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AreaChartItem* area = static_cast<AreaChartItem*>(item);
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m_animator->removeAnimation(area->upperLineItem());
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if(areaSeries->lowerSeries()) m_animator->removeAnimation(area->lowerLineItem());
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}else
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m_animator->removeAnimation(item);
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}
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delete item;
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}
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void ChartPresenter::setTheme(QChart::ChartTheme theme,bool force)
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{
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if(m_chartTheme && m_chartTheme->id() == theme) return;
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delete m_chartTheme;
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m_themeForce = force;
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m_chartTheme = ChartTheme::createTheme(theme);
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m_chartTheme->decorate(m_chart,m_themeForce);
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m_chartTheme->decorate(m_chart->legend(),m_themeForce);
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resetAllElements();
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}
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QChart::ChartTheme ChartPresenter::theme()
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{
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return m_chartTheme->id();
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}
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void ChartPresenter::setAnimationOptions(QChart::AnimationOptions options)
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{
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if(m_options!=options) {
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m_options=options;
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if(m_options!=QChart::NoAnimation && !m_animator) {
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m_animator= new ChartAnimator(this);
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}
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resetAllElements();
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}
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}
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void ChartPresenter::resetAllElements()
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{
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QList<QChartAxis*> axisList = m_axisItems.uniqueKeys();
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QList<QSeries*> seriesList = m_chartItems.uniqueKeys();
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foreach(QChartAxis* axis, axisList) {
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handleAxisRemoved(axis);
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handleAxisAdded(axis,m_dataset->domain(axis));
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}
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foreach(QSeries* series, seriesList) {
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handleSeriesRemoved(series);
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handleSeriesAdded(series,m_dataset->domain(series));
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}
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}
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void ChartPresenter::zoomIn()
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{
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QRectF rect = chartGeometry();
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rect.setWidth(rect.width()/2);
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rect.setHeight(rect.height()/2);
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rect.moveCenter(chartGeometry().center());
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zoomIn(rect);
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}
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void ChartPresenter::zoomIn(const QRectF& rect)
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{
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QRectF r = rect.normalized();
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r.translate(-m_chartMargins.topLeft());
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if(m_animator) {
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QPointF point(r.center().x()/chartGeometry().width(),r.center().y()/chartGeometry().height());
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m_animator->setState(ChartAnimator::ZoomInState,point);
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}
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m_dataset->zoomInDomain(r,chartGeometry().size());
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if(m_animator) {
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m_animator->setState(ChartAnimator::ShowState);
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}
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}
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void ChartPresenter::zoomOut()
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{
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if(m_animator)
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{
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m_animator->setState(ChartAnimator::ZoomOutState);
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}
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QSizeF size = chartGeometry().size();
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QRectF rect = chartGeometry();
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rect.translate(-m_chartMargins.topLeft());
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m_dataset->zoomOutDomain(rect.adjusted(size.width()/4,size.height()/4,-size.width()/4,-size.height()/4),size);
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//m_dataset->zoomOutDomain(m_zoomStack[m_zoomIndex-1],geometry().size());
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if(m_animator){
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m_animator->setState(ChartAnimator::ShowState);
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}
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}
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void ChartPresenter::scroll(int dx,int dy)
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{
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if(m_animator){
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if(dx<0) m_animator->setState(ChartAnimator::ScrollLeftState,QPointF());
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if(dx>0) m_animator->setState(ChartAnimator::ScrollRightState,QPointF());
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if(dy<0) m_animator->setState(ChartAnimator::ScrollUpState,QPointF());
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|
if(dy>0) m_animator->setState(ChartAnimator::ScrollDownState,QPointF());
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|
}
|
|
|
|
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|
m_dataset->scrollDomain(dx,dy,chartGeometry().size());
|
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|
|
|
|
if(m_animator){
|
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|
m_animator->setState(ChartAnimator::ShowState);
|
|
|
}
|
|
|
}
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|
|
|
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|
QChart::AnimationOptions ChartPresenter::animationOptions() const
|
|
|
{
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|
return m_options;
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|
}
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|
|
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|
void ChartPresenter::updateLayout()
|
|
|
{
|
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|
if (!m_rect.isValid()) return;
|
|
|
|
|
|
// recalculate title size
|
|
|
|
|
|
QSize titleSize;
|
|
|
int titlePadding=0;
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|
|
|
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|
if (m_titleItem) {
|
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|
titleSize= m_titleItem->boundingRect().size().toSize();
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|
}
|
|
|
|
|
|
//defaults
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|
m_chartMargins = QRect(QPoint(m_minLeftMargin>m_marginBig?m_minLeftMargin:m_marginBig,m_marginBig),QPoint(m_marginBig,m_minBottomMargin>m_marginBig?m_minBottomMargin:m_marginBig));
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|
titlePadding = m_chartMargins.top()/2;
|
|
|
|
|
|
QLegend* legend = m_chart->d_ptr->m_legend;
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|
|
|
|
|
// recalculate legend position
|
|
|
if (legend->isAttachedToChart() && legend->isEnabled()) {
|
|
|
|
|
|
QRect legendRect;
|
|
|
|
|
|
// Reserve some space for legend
|
|
|
switch (legend->alignment()) {
|
|
|
|
|
|
case QLegend::AlignmentTop: {
|
|
|
int ledgendSize = legend->minHeight();
|
|
|
int topPadding = 2*m_marginTiny + titleSize.height() + ledgendSize + m_marginTiny;
|
|
|
m_chartMargins = QRect(QPoint(m_chartMargins.left(),topPadding),QPoint(m_chartMargins.right(),m_chartMargins.bottom()));
|
|
|
m_legendMargins = QRect(QPoint(m_chartMargins.left(),topPadding - (ledgendSize + m_marginTiny)),QPoint(m_chartMargins.right(),m_rect.height()-topPadding + m_marginTiny));
|
|
|
titlePadding = m_marginTiny + m_marginTiny;
|
|
|
break;
|
|
|
}
|
|
|
case QLegend::AlignmentBottom: {
|
|
|
int ledgendSize = legend->minHeight();
|
|
|
int bottomPadding = m_marginTiny + m_marginSmall + ledgendSize + m_marginTiny + m_minBottomMargin;
|
|
|
m_chartMargins = QRect(QPoint(m_chartMargins.left(),m_chartMargins.top()),QPoint(m_chartMargins.right(),bottomPadding));
|
|
|
m_legendMargins = QRect(QPoint(m_chartMargins.left(),m_rect.height()-bottomPadding + m_marginTiny + m_minBottomMargin),QPoint(m_chartMargins.right(),m_marginTiny + m_marginSmall));
|
|
|
titlePadding = m_chartMargins.top()/2;
|
|
|
break;
|
|
|
}
|
|
|
case QLegend::AlignmentLeft: {
|
|
|
int ledgendSize = legend->minWidth();
|
|
|
int leftPadding = m_marginTiny + m_marginSmall + ledgendSize + m_marginTiny + m_minLeftMargin;
|
|
|
m_chartMargins = QRect(QPoint(leftPadding,m_chartMargins.top()),QPoint(m_chartMargins.right(),m_chartMargins.bottom()));
|
|
|
m_legendMargins = QRect(QPoint(m_marginTiny + m_marginSmall,m_chartMargins.top()),QPoint(m_rect.width()-leftPadding + m_marginTiny + m_minLeftMargin,m_chartMargins.bottom()));
|
|
|
titlePadding = m_chartMargins.top()/2;
|
|
|
break;
|
|
|
}
|
|
|
case QLegend::AlignmentRight: {
|
|
|
int ledgendSize = legend->minWidth();
|
|
|
int rightPadding = m_marginTiny + m_marginSmall + ledgendSize + m_marginTiny;
|
|
|
m_chartMargins = QRect(QPoint(m_chartMargins.left(),m_chartMargins.top()),QPoint(rightPadding,m_chartMargins.bottom()));
|
|
|
m_legendMargins = QRect(QPoint(m_rect.width()- rightPadding+ m_marginTiny ,m_chartMargins.top()),QPoint(m_marginTiny + m_marginSmall,m_chartMargins.bottom()));
|
|
|
titlePadding = m_chartMargins.top()/2;
|
|
|
break;
|
|
|
}
|
|
|
default: {
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if(m_rect.width()<2*(m_chartMargins.top()+m_chartMargins.bottom()) || m_rect.height()< 2*(m_chartMargins.top() + m_chartMargins.bottom()))
|
|
|
{
|
|
|
m_chart->setMinimumSize(2*(m_chartMargins.top()+m_chartMargins.bottom()),2*(m_chartMargins.top() + m_chartMargins.bottom()));
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
|
|
|
// recalculate title position
|
|
|
if (m_titleItem) {
|
|
|
QPointF center = m_rect.center() -m_titleItem->boundingRect().center();
|
|
|
m_titleItem->setPos(center.x(),titlePadding);
|
|
|
}
|
|
|
|
|
|
//recalculate background gradient
|
|
|
if (m_backgroundItem) {
|
|
|
m_backgroundItem->setRect(m_rect.adjusted(m_marginTiny,m_marginTiny, -m_marginTiny, -m_marginTiny));
|
|
|
}
|
|
|
|
|
|
|
|
|
QRectF chartRect = m_rect.adjusted(m_chartMargins.left(),m_chartMargins.top(),-m_chartMargins.right(),-m_chartMargins.bottom());
|
|
|
|
|
|
legend->setGeometry(m_rect.adjusted(m_legendMargins.left(),m_legendMargins.top(),-m_legendMargins.right(),-m_legendMargins.bottom()));
|
|
|
|
|
|
if(m_chartRect!=chartRect){
|
|
|
m_chartRect=chartRect;
|
|
|
emit geometryChanged(m_chartRect);
|
|
|
}
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::createChartBackgroundItem()
|
|
|
{
|
|
|
if (!m_backgroundItem) {
|
|
|
m_backgroundItem = new ChartBackground(rootItem());
|
|
|
m_backgroundItem->setPen(Qt::NoPen);
|
|
|
m_backgroundItem->setZValue(ChartPresenter::BackgroundZValue);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::createChartTitleItem()
|
|
|
{
|
|
|
if (!m_titleItem) {
|
|
|
m_titleItem = new QGraphicsSimpleTextItem(rootItem());
|
|
|
m_titleItem->setZValue(ChartPresenter::BackgroundZValue);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
#include "moc_chartpresenter_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
