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-rw-r--r--src/chartthememanager.cpp249
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diff --git a/src/chartthememanager.cpp b/src/chartthememanager.cpp
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--- a/src/chartthememanager.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2014 Digia Plc
-** All rights reserved.
-** For any questions to Digia, please use contact form at http://qt.digia.com
-**
-** This file is part of the Qt Enterprise Charts Add-on.
-**
-** $QT_BEGIN_LICENSE$
-** Licensees holding valid Qt Enterprise licenses may use this file in
-** accordance with the Qt Enterprise License Agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia.
-**
-** If you have questions regarding the use of this file, please use
-** contact form at http://qt.digia.com
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-#include "qabstractseries_p.h"
-#include "qabstractaxis_p.h"
-#include <QTime>
-//themes
-#include "chartthemesystem_p.h"
-#include "chartthemelight_p.h"
-#include "chartthemebluecerulean_p.h"
-#include "chartthemedark_p.h"
-#include "chartthemebrownsand_p.h"
-#include "chartthemebluencs_p.h"
-#include "chartthemehighcontrast_p.h"
-#include "chartthemeblueicy_p.h"
-#include "chartthemeqt_p.h"
-
-QTCOMMERCIALCHART_BEGIN_NAMESPACE
-
-ChartThemeManager::ChartThemeManager(QChart* chart) :
- m_chart(chart)
-{
- qsrand(QTime(0, 0, 0).secsTo(QTime::currentTime()));
-}
-
-
-void ChartThemeManager::setTheme(QChart::ChartTheme theme)
-{
- if (m_theme.isNull() || theme != m_theme->id()) {
- switch (theme) {
- case QChart::ChartThemeLight:
- m_theme.reset(new ChartThemeLight());
- break;
- case QChart::ChartThemeBlueCerulean:
- m_theme.reset(new ChartThemeBlueCerulean());
- break;
- case QChart::ChartThemeDark:
- m_theme.reset(new ChartThemeDark());
- break;
- case QChart::ChartThemeBrownSand:
- m_theme.reset(new ChartThemeBrownSand());
- break;
- case QChart::ChartThemeBlueNcs:
- m_theme.reset(new ChartThemeBlueNcs());
- break;
- case QChart::ChartThemeHighContrast:
- m_theme.reset(new ChartThemeHighContrast());
- break;
- case QChart::ChartThemeBlueIcy:
- m_theme.reset(new ChartThemeBlueIcy());
- break;
- case QChart::ChartThemeQt:
- m_theme.reset(new ChartThemeQt());
- break;
- default:
- m_theme.reset(new ChartThemeSystem());
- break;
- }
-
- if (!m_theme.isNull()) {
- decorateChart(m_chart,m_theme.data());
- decorateLegend(m_chart->legend(),m_theme.data());
- foreach (QAbstractAxis* axis, m_axisList)
- axis->d_ptr->initializeTheme(m_theme.data(), true);
- foreach (QAbstractSeries* series, m_seriesMap.keys())
- series->d_ptr->initializeTheme(m_seriesMap[series], m_theme.data(), true);
- }
- }
-}
-
-// decorateChart is only called when theme is forcibly initialized
-void ChartThemeManager::decorateChart(QChart *chart, ChartTheme *theme) const
-{
- chart->setBackgroundBrush(theme->chartBackgroundGradient());
-
- QPen pen(Qt::transparent);
- QBrush brush;
- chart->setPlotAreaBackgroundBrush(brush);
- chart->setPlotAreaBackgroundPen(pen);
- chart->setPlotAreaBackgroundVisible(false);
-
- chart->setTitleFont(theme->masterFont());
- chart->setTitleBrush(theme->labelBrush());
- chart->setDropShadowEnabled(theme->isBackgroundDropShadowEnabled());
-}
-
-// decorateLegend is only called when theme is forcibly initialized
-void ChartThemeManager::decorateLegend(QLegend *legend, ChartTheme *theme) const
-{
- legend->setPen(theme->axisLinePen());
- legend->setBrush(theme->chartBackgroundGradient());
- legend->setFont(theme->labelFont());
- legend->setLabelBrush(theme->labelBrush());
-}
-
-int ChartThemeManager::createIndexKey(QList<int> keys) const
-{
- qSort(keys);
-
- int key = 0;
- QList<int>::iterator i;
- i = keys.begin();
-
- while (i != keys.end()) {
- if (*i != key)
- break;
- key++;
- i++;
- }
-
- return key;
-}
-
-int ChartThemeManager::seriesCount(QAbstractSeries::SeriesType type) const
-{
- int count = 0;
- QList<QAbstractSeries *> series = m_seriesMap.keys();
- foreach(QAbstractSeries *s, series) {
- if (s->type() == type)
- count++;
- }
- return count;
-}
-
-void ChartThemeManager::handleSeriesAdded(QAbstractSeries *series)
-{
- int key = createIndexKey(m_seriesMap.values());
- m_seriesMap.insert(series,key);
- series->d_ptr->initializeTheme(key,m_theme.data(),false);
-}
-
-void ChartThemeManager::handleSeriesRemoved(QAbstractSeries *series)
-{
- m_seriesMap.remove(series);
-}
-
-void ChartThemeManager::handleAxisAdded(QAbstractAxis *axis)
-{
- m_axisList.append(axis);
- axis->d_ptr->initializeTheme(m_theme.data(),false);
-}
-
-void ChartThemeManager::handleAxisRemoved(QAbstractAxis *axis)
-{
- m_axisList.removeAll(axis);
-}
-
-void ChartThemeManager::updateSeries(QAbstractSeries *series)
-{
- if(m_seriesMap.contains(series)){
- series->d_ptr->initializeTheme(m_seriesMap[series],m_theme.data(),false);
- }
-}
-QList<QGradient> ChartThemeManager::generateSeriesGradients(const QList<QColor>& colors)
-{
- QList<QGradient> result;
- // Generate gradients in HSV color space
- foreach (const QColor &color, colors) {
- QLinearGradient g;
- qreal h = color.hsvHueF();
- qreal s = color.hsvSaturationF();
-
- QColor start = color;
- start.setHsvF(h, 0.0, 1.0);
- g.setColorAt(0.0, start);
-
- g.setColorAt(0.5, color);
-
- QColor end = color;
- end.setHsvF(h, s, 0.25);
- g.setColorAt(1.0, end);
-
- result << g;
- }
-
- return result;
-}
-
-
-QColor ChartThemeManager::colorAt(const QColor &start, const QColor &end, qreal pos)
-{
- Q_ASSERT(pos >= 0.0 && pos <= 1.0);
- qreal r = start.redF() + ((end.redF() - start.redF()) * pos);
- qreal g = start.greenF() + ((end.greenF() - start.greenF()) * pos);
- qreal b = start.blueF() + ((end.blueF() - start.blueF()) * pos);
- QColor c;
- c.setRgbF(r, g, b);
- return c;
-}
-
-QColor ChartThemeManager::colorAt(const QGradient &gradient, qreal pos)
-{
- Q_ASSERT(pos >= 0 && pos <= 1.0);
-
- QGradientStops stops = gradient.stops();
- int count = stops.count();
-
- // find previous stop relative to position
- QGradientStop prev = stops.first();
- for (int i = 0; i < count; i++) {
- QGradientStop stop = stops.at(i);
- if (pos > stop.first)
- prev = stop;
-
- // given position is actually a stop position?
- if (pos == stop.first) {
- //qDebug() << "stop color" << pos;
- return stop.second;
- }
- }
-
- // find next stop relative to position
- QGradientStop next = stops.last();
- for (int i = count - 1; i >= 0; i--) {
- QGradientStop stop = stops.at(i);
- if (pos < stop.first)
- next = stop;
- }
-
- //qDebug() << "prev" << prev.first << "pos" << pos << "next" << next.first;
-
- qreal range = next.first - prev.first;
- qreal posDelta = pos - prev.first;
- qreal relativePos = posDelta / range;
-
- //qDebug() << "range" << range << "posDelta" << posDelta << "relativePos" << relativePos;
-
- return colorAt(prev.second, next.second, relativePos);
-}
-
-#include "moc_chartthememanager_p.cpp"
-
-QTCOMMERCIALCHART_END_NAMESPACE
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