|
|
/****************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2015 The Qt Company Ltd
|
|
|
** All rights reserved.
|
|
|
** For any questions to The Qt Company, please use contact form at http://qt.io
|
|
|
**
|
|
|
** This file is part of the Qt Charts module.
|
|
|
**
|
|
|
** Licensees holding valid commercial license for Qt may use this file in
|
|
|
** accordance with the Qt License Agreement provided with the Software
|
|
|
** or, alternatively, in accordance with the terms contained in a written
|
|
|
** agreement between you and The Qt Company.
|
|
|
**
|
|
|
** If you have questions regarding the use of this file, please use
|
|
|
** contact form at http://qt.io
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
#include <private/qabstractseries_p.h>
|
|
|
#include <private/qabstractaxis_p.h>
|
|
|
#include <QtCore/QTime>
|
|
|
//themes
|
|
|
#include <private/chartthemesystem_p.h>
|
|
|
#include <private/chartthemelight_p.h>
|
|
|
#include <private/chartthemebluecerulean_p.h>
|
|
|
#include <private/chartthemedark_p.h>
|
|
|
#include <private/chartthemebrownsand_p.h>
|
|
|
#include <private/chartthemebluencs_p.h>
|
|
|
#include <private/chartthemehighcontrast_p.h>
|
|
|
#include <private/chartthemeblueicy_p.h>
|
|
|
#include <private/chartthemeqt_p.h>
|
|
|
|
|
|
QT_CHARTS_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
|
|
|
{
|
|
|
std::sort(keys.begin(), keys.end());
|
|
|
|
|
|
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"
|
|
|
|
|
|
QT_CHARTS_END_NAMESPACE
|
|
|
|
