charttheme.cpp
270 lines
| 8.0 KiB
| text/x-c
|
CppLexer
/ src / charttheme.cpp
Tero Ahola
|
r103 | #include "charttheme_p.h" | ||
| #include "qchart.h" | ||||
Michal Klocek
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r176 | #include "qchartaxis.h" | ||
Jani Honkonen
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r324 | #include <QTime> | ||
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Tero Ahola
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r103 | |||
|
Michal Klocek
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r143 | //series | ||
sauimone
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r214 | #include "qbarset.h" | ||
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sauimone
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r338 | #include "qbarseries.h" | ||
| #include "qstackedbarseries.h" | ||||
| #include "qpercentbarseries.h" | ||||
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Michal Klocek
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r349 | #include "qlineseries.h" | ||
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Tero Ahola
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r182 | #include "qscatterseries.h" | ||
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Jani Honkonen
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r163 | #include "qpieseries.h" | ||
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Jani Honkonen
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r203 | #include "qpieslice.h" | ||
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Jani Honkonen
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r163 | |||
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Michal Klocek
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r143 | //items | ||
| #include "axisitem_p.h" | ||||
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sauimone
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r216 | #include "barpresenter.h" | ||
| #include "stackedbarpresenter.h" | ||||
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Michal Klocek
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r145 | #include "linechartitem_p.h" | ||
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sauimone
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r216 | #include "percentbarpresenter.h" | ||
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Tero Ahola
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r194 | #include "scatterpresenter_p.h" | ||
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Jani Honkonen
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r353 | #include "piepresenter_p.h" | ||
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Tero Ahola
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r103 | |||
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Michal Klocek
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r143 | //themes | ||
| #include "chartthemevanilla_p.h" | ||||
| #include "chartthemeicy_p.h" | ||||
| #include "chartthemegrayscale_p.h" | ||||
| #include "chartthemescientific_p.h" | ||||
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Tero Ahola
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r103 | |||
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Tero Ahola
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r125 | |||
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Michal Klocek
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r143 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||
| /* TODO | ||||
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Tero Ahola
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r103 | case QChart::ChartThemeUnnamed1: | ||
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Tero Ahola
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r108 | m_seriesThemes.append(SeriesTheme(QColor(QRgb(0xff3fa9f5)), 2)); | ||
| m_seriesThemes.append(SeriesTheme(QColor(QRgb(0xff7AC943)), 2)); | ||||
| m_seriesThemes.append(SeriesTheme(QColor(QRgb(0xffFF931E)), 2)); | ||||
| m_seriesThemes.append(SeriesTheme(QColor(QRgb(0xffFF1D25)), 2)); | ||||
| m_seriesThemes.append(SeriesTheme(QColor(QRgb(0xffFF7BAC)), 2)); | ||||
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Tero Ahola
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r103 | |||
| m_gradientStartColor = QColor(QRgb(0xfff3dc9e)); | ||||
| m_gradientEndColor = QColor(QRgb(0xffafafaf)); | ||||
|
Michal Klocek
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r143 | */ | ||
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Michal Klocek
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r153 | ChartTheme::ChartTheme(QChart::ChartTheme id) | ||
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Michal Klocek
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r143 | { | ||
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Michal Klocek
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r153 | m_id = id; | ||
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Michal Klocek
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r143 | m_seriesColor.append(QRgb(0xff000000)); | ||
| m_seriesColor.append(QRgb(0xff707070)); | ||||
| m_gradientStartColor = QColor(QRgb(0xffffffff)); | ||||
| m_gradientEndColor = QColor(QRgb(0xffafafaf)); | ||||
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Jani Honkonen
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r324 | |||
| qsrand(QTime(0,0,0).secsTo(QTime::currentTime())); | ||||
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Michal Klocek
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r143 | } | ||
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Michal Klocek
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r153 | ChartTheme* ChartTheme::createTheme(QChart::ChartTheme theme) | ||
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Michal Klocek
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r143 | { | ||
| switch(theme) { | ||||
| case QChart::ChartThemeDefault: | ||||
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Tero Ahola
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r321 | return new ChartThemeIcy(); | ||
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Michal Klocek
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r143 | case QChart::ChartThemeVanilla: | ||
| return new ChartThemeVanilla(); | ||||
| case QChart::ChartThemeIcy: | ||||
| return new ChartThemeIcy(); | ||||
| case QChart::ChartThemeGrayscale: | ||||
| return new ChartThemeGrayscale(); | ||||
| case QChart::ChartThemeScientific: | ||||
| return new ChartThemeScientific(); | ||||
| } | ||||
| } | ||||
| void ChartTheme::decorate(QChart* chart) | ||||
| { | ||||
| QLinearGradient backgroundGradient; | ||||
| backgroundGradient.setColorAt(0.0, m_gradientStartColor); | ||||
| backgroundGradient.setColorAt(1.0, m_gradientEndColor); | ||||
| backgroundGradient.setCoordinateMode(QGradient::ObjectBoundingMode); | ||||
| chart->setChartBackgroundBrush(backgroundGradient); | ||||
| } | ||||
| //TODO helper to by removed later | ||||
|
Michal Klocek
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r360 | void ChartTheme::decorate(ChartItem* item, QSeries* series,int count) | ||
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Michal Klocek
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r143 | { | ||
| switch(series->type()) | ||||
| { | ||||
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Michal Klocek
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r360 | case QSeries::SeriesTypeLine: { | ||
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Michal Klocek
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r349 | QLineSeries* s = static_cast<QLineSeries*>(series); | ||
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Michal Klocek
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r145 | LineChartItem* i = static_cast<LineChartItem*>(item); | ||
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Michal Klocek
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r143 | decorate(i,s,count); | ||
| break; | ||||
| } | ||||
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Michal Klocek
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r360 | case QSeries::SeriesTypeBar: { | ||
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sauimone
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r338 | QBarSeries* b = static_cast<QBarSeries*>(series); | ||
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sauimone
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r216 | BarPresenter* i = static_cast<BarPresenter*>(item); | ||
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Michal Klocek
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r143 | decorate(i,b,count); | ||
| break; | ||||
| } | ||||
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Michal Klocek
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r360 | case QSeries::SeriesTypeStackedBar: { | ||
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sauimone
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r338 | QStackedBarSeries* s = static_cast<QStackedBarSeries*>(series); | ||
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sauimone
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r216 | StackedBarPresenter* i = static_cast<StackedBarPresenter*>(item); | ||
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Michal Klocek
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r143 | decorate(i,s,count); | ||
| break; | ||||
| } | ||||
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Michal Klocek
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r360 | case QSeries::SeriesTypePercentBar: { | ||
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sauimone
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r338 | QPercentBarSeries* s = static_cast<QPercentBarSeries*>(series); | ||
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sauimone
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r216 | PercentBarPresenter* i = static_cast<PercentBarPresenter*>(item); | ||
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Michal Klocek
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r143 | decorate(i,s,count); | ||
| break; | ||||
| } | ||||
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Michal Klocek
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r360 | case QSeries::SeriesTypeScatter: { | ||
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Tero Ahola
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r195 | QScatterSeries* s = qobject_cast<QScatterSeries*>(series); | ||
| Q_ASSERT(s); | ||||
| ScatterPresenter* i = static_cast<ScatterPresenter*>(item); | ||||
| Q_ASSERT(i); | ||||
| decorate(i, s, count); | ||||
| break; | ||||
| } | ||||
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Michal Klocek
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r360 | case QSeries::SeriesTypePie: { | ||
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Jani Honkonen
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r163 | QPieSeries* s = static_cast<QPieSeries*>(series); | ||
| PiePresenter* i = static_cast<PiePresenter*>(item); | ||||
| decorate(i,s,count); | ||||
| break; | ||||
| } | ||||
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Michal Klocek
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r143 | default: | ||
| qDebug()<<"Wrong item to be decorated by theme"; | ||||
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Tero Ahola
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r103 | break; | ||
| } | ||||
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Michal Klocek
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r143 | |||
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Tero Ahola
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r103 | } | ||
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Michal Klocek
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r349 | void ChartTheme::decorate(LineChartItem* item, QLineSeries* series,int count) | ||
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Tero Ahola
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r103 | { | ||
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Michal Klocek
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r152 | QPen pen; | ||
| if(pen != series->pen()){ | ||||
| item->setPen(series->pen()); | ||||
| return; | ||||
| } | ||||
| pen.setColor(m_seriesColor.at(count%m_seriesColor.size())); | ||||
| pen.setWidthF(2); | ||||
| item->setPen(pen); | ||||
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Tero Ahola
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r103 | } | ||
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sauimone
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r338 | void ChartTheme::decorate(BarPresenter* item, QBarSeries* series,int count) | ||
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Tero Ahola
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r108 | { | ||
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sauimone
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r357 | QList<QBarSet*> sets = series->barSets(); | ||
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sauimone
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r366 | for (int i=0; i<series->barsetCount(); i++) { | ||
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sauimone
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r357 | sets.at(i)->setBrush(QBrush(m_seriesColor.at(i%m_seriesColor.count()))); | ||
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sauimone
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r164 | } | ||
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Tero Ahola
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r108 | } | ||
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sauimone
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r338 | void ChartTheme::decorate(StackedBarPresenter* item, QStackedBarSeries* series,int count) | ||
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Tero Ahola
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r103 | { | ||
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sauimone
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r357 | QList<QBarSet*> sets = series->barSets(); | ||
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sauimone
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r366 | for (int i=0; i<series->barsetCount(); i++) { | ||
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sauimone
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r357 | sets.at(i)->setBrush(QBrush(m_seriesColor.at(i%m_seriesColor.count()))); | ||
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sauimone
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r164 | } | ||
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Tero Ahola
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r103 | } | ||
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sauimone
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r338 | void ChartTheme::decorate(PercentBarPresenter* item, QPercentBarSeries* series,int count) | ||
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Michal Klocek
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r143 | { | ||
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sauimone
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r357 | QList<QBarSet*> sets = series->barSets(); | ||
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sauimone
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r366 | for (int i=0; i<series->barsetCount(); i++) { | ||
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sauimone
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r357 | sets.at(i)->setBrush(QBrush(m_seriesColor.at(i%m_seriesColor.count()))); | ||
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sauimone
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r164 | } | ||
|
Michal Klocek
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r143 | } | ||
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Tero Ahola
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r103 | |||
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Tero Ahola
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r182 | void ChartTheme::decorate(ScatterPresenter* presenter, QScatterSeries* series, int count) | ||
| { | ||||
| Q_ASSERT(presenter); | ||||
| Q_ASSERT(series); | ||||
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Tero Ahola
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r195 | QColor color = m_seriesColor.at(count % m_seriesColor.size()); | ||
| // TODO: define alpha in the theme? or in the series? | ||||
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Tero Ahola
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r278 | //color.setAlpha(120); | ||
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Tero Ahola
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r195 | |||
| QBrush brush(color, Qt::SolidPattern); | ||||
| presenter->m_markerBrush = brush; | ||||
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Tero Ahola
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r182 | |||
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Tero Ahola
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r278 | QPen pen(brush, 3); | ||
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Tero Ahola
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r195 | pen.setColor(color); | ||
| presenter->m_markerPen = pen; | ||||
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Tero Ahola
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r182 | } | ||
|
Jani Honkonen
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r163 | void ChartTheme::decorate(PiePresenter* item, QPieSeries* series, int /*count*/) | ||
| { | ||||
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Jani Honkonen
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r166 | // create a list of slice colors based on current theme | ||
| int i = 0; | ||||
| QList<QColor> colors; | ||||
| while (colors.count() < series->count()) { | ||||
| // get base color | ||||
| QColor c = m_seriesColor[i++]; | ||||
| i = i % m_seriesColor.count(); | ||||
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Jani Honkonen
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r340 | // dont use black colors... looks bad | ||
| if (c == Qt::black) | ||||
| continue; | ||||
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Jani Honkonen
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r324 | // by default use the "raw" theme color | ||
| if (!colors.contains(c)) { | ||||
| colors << c; | ||||
| continue; | ||||
| } | ||||
| // ...ok we need to generate something that looks like the same color | ||||
| // but different lightness | ||||
| int tryCount = 0; | ||||
| while (tryCount++ < 100) { | ||||
|
Jani Honkonen
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r166 | |||
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Jani Honkonen
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r324 | // find maximum value we can raise the lightness | ||
| int lMax = 255; | ||||
| if (lMax > 255 - c.red()) | ||||
| lMax = 255 - c.red(); | ||||
| if (lMax > 255 - c.green()) | ||||
| lMax = 255 - c.green(); | ||||
| if (lMax > 255 - c.blue()) | ||||
| lMax = 255 - c.blue(); | ||||
|
Jani Honkonen
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r166 | |||
|
Jani Honkonen
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r324 | // find maximum value we can make it darker | ||
| int dMax = 255; | ||||
| if (dMax > c.red()) | ||||
| dMax = c.red(); | ||||
| if (dMax > c.green()) | ||||
| dMax = c.green(); | ||||
| if (dMax > c.blue()) | ||||
| dMax = c.blue(); | ||||
| int max = dMax + lMax; | ||||
| if (max == 0) { | ||||
| // no room to make color lighter or darker... | ||||
| qDebug() << "cannot generate a color for pie!"; | ||||
| break; | ||||
| } | ||||
| // generate random color | ||||
| int r = c.red() - dMax; | ||||
| int g = c.green() - dMax; | ||||
| int b = c.blue() - dMax; | ||||
| int d = qrand() % max; | ||||
| c.setRgb(r+d, g+d, b+d); | ||||
| // found a unique color? | ||||
| if (!colors.contains(c)) | ||||
| break; | ||||
|
Jani Honkonen
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r166 | } | ||
|
Jani Honkonen
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r324 | qDebug() << "generated a color for pie" << c; | ||
| colors << c; | ||||
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Jani Honkonen
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r166 | } | ||
| // finally update colors | ||||
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Jani Honkonen
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r203 | foreach (QPieSlice* s, series->slices()) { | ||
|
Jani Honkonen
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r324 | QColor c = colors.takeFirst(); | ||
| s->setPen(c); | ||||
| s->setBrush(c); | ||||
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Jani Honkonen
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r163 | } | ||
| } | ||||
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Tero Ahola
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r103 | |||
|
Michal Klocek
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r223 | void ChartTheme::decorate(QChartAxis* axis,AxisItem* item) | ||
|
Michal Klocek
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r176 | { | ||
| //TODO: dummy defults for now | ||||
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Michal Klocek
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r223 | axis->setLabelsBrush(Qt::black); | ||
| axis->setLabelsPen(Qt::NoPen); | ||||
| axis->setShadesPen(Qt::NoPen); | ||||
| axis->setShadesOpacity(0.5); | ||||
|
Michal Klocek
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r176 | } | ||
|
Tero Ahola
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r103 | QTCOMMERCIALCHART_END_NAMESPACE | ||