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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
//
// W A R N I N G
// -------------
//
// This file is not part of the QtDataVisualization 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 AXISRENDERCACHE_P_H
#define AXISRENDERCACHE_P_H
#include "datavisualizationglobal_p.h"
#include "drawer_p.h"
#include <QtCore/QPointer>
QT_BEGIN_NAMESPACE
class AxisRenderCache : public QObject
{
Q_OBJECT
public:
AxisRenderCache();
virtual ~AxisRenderCache();
void setDrawer(Drawer *drawer);
void setType(QAbstract3DAxis::AxisType type);
inline QAbstract3DAxis::AxisType type() const { return m_type; }
void setTitle(const QString &title);
inline const QString &title() const { return m_title; }
void setLabels(const QStringList &labels);
inline const QStringList &labels() const { return m_labels; }
inline void setMin(float min) { m_min = min; }
inline float min() const { return m_min; }
inline void setMax(float max) { m_max = max; }
inline float max() const { return m_max; }
inline void setSegmentCount(int count) { m_segmentCount = count; m_positionsDirty = true; }
inline int segmentCount() const { return m_segmentCount; }
inline void setSubSegmentCount(int count) { m_subSegmentCount = count; m_positionsDirty = true; }
inline int subSegmentCount() const { return m_subSegmentCount; }
inline void setLabelFormat(const QString &format) { m_labelFormat = format; }
inline const QString &labelFormat() const { return m_labelFormat; }
inline void setReversed(bool enable) { m_reversed = enable; m_positionsDirty = true; }
inline bool reversed() const { return m_reversed; }
inline void setFormatter(QValue3DAxisFormatter *formatter)
{
m_formatter = formatter; m_positionsDirty = true;
}
inline QValue3DAxisFormatter *formatter() const { return m_formatter; }
inline void setCtrlFormatter(QValue3DAxisFormatter *formatter)
{
m_ctrlFormatter = formatter;
}
inline QValue3DAxisFormatter *ctrlFormatter() const { return m_ctrlFormatter; }
inline LabelItem &titleItem() { return m_titleItem; }
inline QList<LabelItem *> &labelItems() { return m_labelItems; }
inline float gridLinePosition(int index) { return m_adjustedGridLinePositions.at(index); }
inline int gridLineCount() { return m_adjustedGridLinePositions.size(); }
inline float labelPosition(int index) { return m_adjustedLabelPositions.at(index); }
inline int labelCount() {
// Some value axis formatters may opt to not show all labels,
// so use positions array for determining count in that case.
if (m_type == QAbstract3DAxis::AxisTypeValue)
return m_adjustedLabelPositions.size();
else
return m_labels.size();
}
void updateAllPositions();
inline bool positionsDirty() const { return m_positionsDirty; }
inline void markPositionsDirty() { m_positionsDirty = true; }
inline void setTranslate(float translate) { m_translate = translate; m_positionsDirty = true; }
inline float translate() { return m_translate; }
inline void setScale(float scale) { m_scale = scale; m_positionsDirty = true; }
inline float scale() { return m_scale; }
inline float positionAt(float value)
{
if (m_reversed)
return (1.0f - m_formatter->positionAt(value)) * m_scale + m_translate;
else
return m_formatter->positionAt(value) * m_scale + m_translate;
}
inline float labelAutoRotation() const { return m_labelAutoRotation; }
inline void setLabelAutoRotation(float angle) { m_labelAutoRotation = angle; }
inline bool isTitleVisible() const { return m_titleVisible; }
inline void setTitleVisible(bool visible) { m_titleVisible = visible; }
inline bool isTitleFixed() const { return m_titleFixed; }
inline void setTitleFixed(bool fixed) { m_titleFixed = fixed; }
void updateTextures();
void clearLabels();
private:
int maxLabelWidth(const QStringList &labels) const;
// Cached axis values
QAbstract3DAxis::AxisType m_type;
QString m_title;
QStringList m_labels;
float m_min;
float m_max;
int m_segmentCount;
int m_subSegmentCount;
QString m_labelFormat;
bool m_reversed;
QFont m_font;
QValue3DAxisFormatter *m_formatter;
QPointer<QValue3DAxisFormatter> m_ctrlFormatter;
// Renderer items
Drawer *m_drawer; // Not owned
LabelItem m_titleItem;
QList<LabelItem *> m_labelItems;
QList<float> m_adjustedGridLinePositions;
QList<float> m_adjustedLabelPositions;
bool m_positionsDirty;
float m_translate;
float m_scale;
float m_labelAutoRotation;
bool m_titleVisible;
bool m_titleFixed;
Q_DISABLE_COPY(AxisRenderCache)
};
QT_END_NAMESPACE
#endif