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#include "charttheme_p.h"
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#include "qchart.h"
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#include "qchartaxis.h"
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#include <QTime>
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//series
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#include "qbarset.h"
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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 "qscatterseries.h"
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#include "qpieseries.h"
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#include "qpieslice.h"
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//items
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#include "axisitem_p.h"
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#include "barpresenter.h"
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#include "stackedbarpresenter.h"
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#include "linechartitem_p.h"
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#include "percentbarpresenter.h"
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#include "scatterpresenter_p.h"
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#include "piepresenter_p.h"
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//themes
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#include "chartthemevanilla_p.h"
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#include "chartthemeicy_p.h"
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#include "chartthemegrayscale_p.h"
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#include "chartthemescientific_p.h"
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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/* TODO
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case QChart::ChartThemeUnnamed1:
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m_seriesThemes.append(SeriesTheme(QColor(QRgb(0xff3fa9f5)), 2));
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m_seriesThemes.append(SeriesTheme(QColor(QRgb(0xff7AC943)), 2));
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m_seriesThemes.append(SeriesTheme(QColor(QRgb(0xffFF931E)), 2));
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m_seriesThemes.append(SeriesTheme(QColor(QRgb(0xffFF1D25)), 2));
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m_seriesThemes.append(SeriesTheme(QColor(QRgb(0xffFF7BAC)), 2));
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m_gradientStartColor = QColor(QRgb(0xfff3dc9e));
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m_gradientEndColor = QColor(QRgb(0xffafafaf));
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*/
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ChartTheme::ChartTheme(QChart::ChartTheme id)
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{
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m_id = id;
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m_seriesColor.append(QRgb(0xff000000));
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m_seriesColor.append(QRgb(0xff707070));
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m_gradientStartColor = QColor(QRgb(0xffffffff));
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m_gradientEndColor = QColor(QRgb(0xffafafaf));
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qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));
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}
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ChartTheme* ChartTheme::createTheme(QChart::ChartTheme theme)
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{
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switch(theme) {
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case QChart::ChartThemeDefault:
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return new ChartThemeIcy();
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case QChart::ChartThemeVanilla:
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return new ChartThemeVanilla();
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case QChart::ChartThemeIcy:
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return new ChartThemeIcy();
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case QChart::ChartThemeGrayscale:
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return new ChartThemeGrayscale();
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case QChart::ChartThemeScientific:
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return new ChartThemeScientific();
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}
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}
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void ChartTheme::decorate(QChart* chart)
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{
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QLinearGradient backgroundGradient;
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backgroundGradient.setColorAt(0.0, m_gradientStartColor);
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backgroundGradient.setColorAt(1.0, m_gradientEndColor);
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backgroundGradient.setCoordinateMode(QGradient::ObjectBoundingMode);
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chart->setChartBackgroundBrush(backgroundGradient);
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}
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//TODO helper to by removed later
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void ChartTheme::decorate(ChartItem* item, QChartSeries* series,int count)
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{
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switch(series->type())
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{
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case QChartSeries::SeriesTypeLine: {
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QLineSeries* s = static_cast<QLineSeries*>(series);
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LineChartItem* i = static_cast<LineChartItem*>(item);
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decorate(i,s,count);
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break;
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}
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case QChartSeries::SeriesTypeBar: {
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QBarSeries* b = static_cast<QBarSeries*>(series);
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BarPresenter* i = static_cast<BarPresenter*>(item);
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decorate(i,b,count);
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break;
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}
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case QChartSeries::SeriesTypeStackedBar: {
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QStackedBarSeries* s = static_cast<QStackedBarSeries*>(series);
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StackedBarPresenter* i = static_cast<StackedBarPresenter*>(item);
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decorate(i,s,count);
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break;
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}
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case QChartSeries::SeriesTypePercentBar: {
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QPercentBarSeries* s = static_cast<QPercentBarSeries*>(series);
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PercentBarPresenter* i = static_cast<PercentBarPresenter*>(item);
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decorate(i,s,count);
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break;
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}
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case QChartSeries::SeriesTypeScatter: {
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QScatterSeries* s = qobject_cast<QScatterSeries*>(series);
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Q_ASSERT(s);
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ScatterPresenter* i = static_cast<ScatterPresenter*>(item);
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Q_ASSERT(i);
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decorate(i, s, count);
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break;
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}
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case QChartSeries::SeriesTypePie: {
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QPieSeries* s = static_cast<QPieSeries*>(series);
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PiePresenter* i = static_cast<PiePresenter*>(item);
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decorate(i,s,count);
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break;
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}
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default:
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qDebug()<<"Wrong item to be decorated by theme";
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break;
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}
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}
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void ChartTheme::decorate(LineChartItem* item, QLineSeries* series,int count)
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{
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QPen pen;
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if(pen != series->pen()){
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item->setPen(series->pen());
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return;
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}
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pen.setColor(m_seriesColor.at(count%m_seriesColor.size()));
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pen.setWidthF(2);
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item->setPen(pen);
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}
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void ChartTheme::decorate(BarPresenter* item, QBarSeries* series,int count)
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{
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for (int i=0; i<series->countSets(); i++) {
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series->nextSet(0==i)->setBrush(QBrush(m_seriesColor.at(i%m_seriesColor.count())));
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}
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}
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void ChartTheme::decorate(StackedBarPresenter* item, QStackedBarSeries* series,int count)
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{
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for (int i=0; i<series->countSets(); i++) {
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series->nextSet(0==i)->setBrush(QBrush(m_seriesColor.at(i%m_seriesColor.count())));
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}
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}
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void ChartTheme::decorate(PercentBarPresenter* item, QPercentBarSeries* series,int count)
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{
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for (int i=0; i<series->countSets(); i++) {
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series->nextSet(0==i)->setBrush(QBrush(m_seriesColor.at(i%m_seriesColor.count())));
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}
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}
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void ChartTheme::decorate(ScatterPresenter* presenter, QScatterSeries* series, int count)
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{
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Q_ASSERT(presenter);
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Q_ASSERT(series);
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QColor color = m_seriesColor.at(count % m_seriesColor.size());
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// TODO: define alpha in the theme? or in the series?
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//color.setAlpha(120);
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QBrush brush(color, Qt::SolidPattern);
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presenter->m_markerBrush = brush;
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QPen pen(brush, 3);
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pen.setColor(color);
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presenter->m_markerPen = pen;
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}
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void ChartTheme::decorate(PiePresenter* item, QPieSeries* series, int /*count*/)
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{
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// create a list of slice colors based on current theme
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int i = 0;
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QList<QColor> colors;
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while (colors.count() < series->count()) {
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// get base color
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QColor c = m_seriesColor[i++];
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i = i % m_seriesColor.count();
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// dont use black colors... looks bad
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if (c == Qt::black)
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continue;
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// by default use the "raw" theme color
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if (!colors.contains(c)) {
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colors << c;
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continue;
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}
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// ...ok we need to generate something that looks like the same color
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// but different lightness
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int tryCount = 0;
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while (tryCount++ < 100) {
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// find maximum value we can raise the lightness
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int lMax = 255;
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if (lMax > 255 - c.red())
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lMax = 255 - c.red();
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if (lMax > 255 - c.green())
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lMax = 255 - c.green();
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if (lMax > 255 - c.blue())
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lMax = 255 - c.blue();
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// find maximum value we can make it darker
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int dMax = 255;
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if (dMax > c.red())
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dMax = c.red();
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if (dMax > c.green())
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dMax = c.green();
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if (dMax > c.blue())
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dMax = c.blue();
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int max = dMax + lMax;
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if (max == 0) {
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// no room to make color lighter or darker...
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qDebug() << "cannot generate a color for pie!";
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break;
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}
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// generate random color
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int r = c.red() - dMax;
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int g = c.green() - dMax;
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int b = c.blue() - dMax;
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int d = qrand() % max;
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c.setRgb(r+d, g+d, b+d);
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// found a unique color?
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if (!colors.contains(c))
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break;
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}
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qDebug() << "generated a color for pie" << c;
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colors << c;
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}
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// finally update colors
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foreach (QPieSlice* s, series->slices()) {
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QColor c = colors.takeFirst();
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s->setPen(c);
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s->setBrush(c);
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}
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}
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void ChartTheme::decorate(QChartAxis* axis,AxisItem* item)
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{
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//TODO: dummy defults for now
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axis->setLabelsBrush(Qt::black);
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axis->setLabelsPen(Qt::NoPen);
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axis->setShadesPen(Qt::NoPen);
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axis->setShadesOpacity(0.5);
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}
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QTCOMMERCIALCHART_END_NAMESPACE
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