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Better support for negative values in stacked barcharts. Negative values are stacked from zero to negative direction. Positive values are stacked from zero to positive direction.
Better support for negative values in stacked barcharts. Negative values are stacked from zero to negative direction. Positive values are stacked from zero to positive direction.

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r1698:da7242791c36
r1897:c0fc53c8ab57
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charttheme_p.h
110 lines | 3.1 KiB | text/x-c | CLexer
/****************************************************************************
**
** Copyright (C) 2012 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 Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial 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
** $QT_END_LICENSE$
**
****************************************************************************/
// W A R N I N G
// -------------
//
// This file is not part of the QtCommercial Chart API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef CHARTTHEME_H
#define CHARTTHEME_H
#include "qchartglobal.h"
#include "qchart.h"
#include <QColor>
#include <QGradientStops>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
class ChartItem;
class LineChartItem;
class QLineSeries;
class AbstractBarChartItem;
class QAbstractBarSeries;
class StackedBarChartItem;
class QStackedBarSeries;
class QPercentBarSeries;
class PercentBarChartItem;
class QScatterSeries;
class ScatterChartItem;
class PieChartItem;
class QPieSeries;
class SplineChartItem;
class QSplineSeries;
class AreaChartItem;
class QAreaSeries;
class ChartTheme
{
public:
enum BackgroundShadesMode {
BackgroundShadesNone = 0,
BackgroundShadesVertical,
BackgroundShadesHorizontal,
BackgroundShadesBoth
};
protected:
explicit ChartTheme(QChart::ChartTheme id = QChart::ChartThemeLight);
public:
static ChartTheme *createTheme(QChart::ChartTheme theme);
QChart::ChartTheme id() const {return m_id;}
void decorate(QChart *chart);
void decorate(QLegend *legend);
void decorate(QAbstractBarSeries *series, int index);
void decorate(QLineSeries *series, int index);
void decorate(QAreaSeries *series, int index);
void decorate(QScatterSeries *series, int index);
void decorate(QPieSeries *series, int index);
void decorate(QSplineSeries *series, int index);
void decorate(QAbstractAxis *axis);
void setForced(bool enabled);
bool isForced() { return m_force; }
public: // utils
void generateSeriesGradients();
static QColor colorAt(const QColor &start, const QColor &end, qreal pos);
static QColor colorAt(const QGradient &gradient, qreal pos);
protected:
QChart::ChartTheme m_id;
QList<QColor> m_seriesColors;
QList<QGradient> m_seriesGradients;
QLinearGradient m_chartBackgroundGradient;
QFont m_masterFont;
QFont m_labelFont;
QBrush m_labelBrush;
QPen m_axisLinePen;
QPen m_backgroundShadesPen;
QBrush m_backgroundShadesBrush;
BackgroundShadesMode m_backgroundShades;
bool m_backgroundDropShadowEnabled;
QPen m_gridLinePen;
bool m_force;
};
QTCOMMERCIALCHART_END_NAMESPACE
#endif // CHARTTHEME_H