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29 | |
30 | // |
31 | // W A R N I N G |
32 | // ------------- |
33 | // |
34 | // This file is not part of the QtDataVisualization API. It exists purely as an |
35 | // implementation detail. This header file may change from version to |
36 | // version without notice, or even be removed. |
37 | // |
38 | // We mean it. |
39 | |
40 | #ifndef AXISRENDERCACHE_P_H |
41 | #define AXISRENDERCACHE_P_H |
42 | |
43 | #include "datavisualizationglobal_p.h" |
44 | #include "drawer_p.h" |
45 | #include <QtCore/QPointer> |
46 | |
47 | QT_BEGIN_NAMESPACE_DATAVISUALIZATION |
48 | |
49 | class AxisRenderCache : public QObject |
50 | { |
51 | Q_OBJECT |
52 | public: |
53 | AxisRenderCache(); |
54 | virtual ~AxisRenderCache(); |
55 | |
56 | void setDrawer(Drawer *drawer); |
57 | |
58 | void setType(QAbstract3DAxis::AxisType type); |
59 | inline QAbstract3DAxis::AxisType type() const { return m_type; } |
60 | void setTitle(const QString &title); |
61 | inline const QString &title() const { return m_title; } |
62 | void setLabels(const QStringList &labels); |
63 | inline const QStringList &labels() const { return m_labels; } |
64 | inline void setMin(float min) { m_min = min; } |
65 | inline float min() const { return m_min; } |
66 | inline void setMax(float max) { m_max = max; } |
67 | inline float max() const { return m_max; } |
68 | inline void setSegmentCount(int count) { m_segmentCount = count; m_positionsDirty = true; } |
69 | inline int segmentCount() const { return m_segmentCount; } |
70 | inline void setSubSegmentCount(int count) { m_subSegmentCount = count; m_positionsDirty = true; } |
71 | inline int subSegmentCount() const { return m_subSegmentCount; } |
72 | inline void setLabelFormat(const QString &format) { m_labelFormat = format; } |
73 | inline const QString &labelFormat() const { return m_labelFormat; } |
74 | inline void setReversed(bool enable) { m_reversed = enable; m_positionsDirty = true; } |
75 | inline bool reversed() const { return m_reversed; } |
76 | inline void setFormatter(QValue3DAxisFormatter *formatter) |
77 | { |
78 | m_formatter = formatter; m_positionsDirty = true; |
79 | } |
80 | inline QValue3DAxisFormatter *formatter() const { return m_formatter; } |
81 | inline void setCtrlFormatter(QValue3DAxisFormatter *formatter) |
82 | { |
83 | m_ctrlFormatter = formatter; |
84 | } |
85 | inline QValue3DAxisFormatter *ctrlFormatter() const { return m_ctrlFormatter; } |
86 | |
87 | inline LabelItem &titleItem() { return m_titleItem; } |
88 | inline QList<LabelItem *> &labelItems() { return m_labelItems; } |
89 | inline float gridLinePosition(int index) { return m_adjustedGridLinePositions.at(i: index); } |
90 | inline int gridLineCount() { return m_adjustedGridLinePositions.size(); } |
91 | inline float labelPosition(int index) { return m_adjustedLabelPositions.at(i: index); } |
92 | inline int labelCount() { |
93 | // Some value axis formatters may opt to not show all labels, |
94 | // so use positions array for determining count in that case. |
95 | if (m_type == QAbstract3DAxis::AxisTypeValue) |
96 | return m_adjustedLabelPositions.size(); |
97 | else |
98 | return m_labels.size(); |
99 | } |
100 | void updateAllPositions(); |
101 | inline bool positionsDirty() const { return m_positionsDirty; } |
102 | inline void markPositionsDirty() { m_positionsDirty = true; } |
103 | inline void setTranslate(float translate) { m_translate = translate; m_positionsDirty = true; } |
104 | inline float translate() { return m_translate; } |
105 | inline void setScale(float scale) { m_scale = scale; m_positionsDirty = true; } |
106 | inline float scale() { return m_scale; } |
107 | inline float positionAt(float value) |
108 | { |
109 | if (m_reversed) |
110 | return (1.0f - m_formatter->positionAt(value)) * m_scale + m_translate; |
111 | else |
112 | return m_formatter->positionAt(value) * m_scale + m_translate; |
113 | } |
114 | inline float labelAutoRotation() const { return m_labelAutoRotation; } |
115 | inline void setLabelAutoRotation(float angle) { m_labelAutoRotation = angle; } |
116 | inline bool isTitleVisible() const { return m_titleVisible; } |
117 | inline void setTitleVisible(bool visible) { m_titleVisible = visible; } |
118 | inline bool isTitleFixed() const { return m_titleFixed; } |
119 | inline void setTitleFixed(bool fixed) { m_titleFixed = fixed; } |
120 | |
121 | void updateTextures(); |
122 | void clearLabels(); |
123 | |
124 | private: |
125 | int maxLabelWidth(const QStringList &labels) const; |
126 | |
127 | // Cached axis values |
128 | QAbstract3DAxis::AxisType m_type; |
129 | QString m_title; |
130 | QStringList m_labels; |
131 | float m_min; |
132 | float m_max; |
133 | int m_segmentCount; |
134 | int m_subSegmentCount; |
135 | QString m_labelFormat; |
136 | bool m_reversed; |
137 | QFont m_font; |
138 | QValue3DAxisFormatter *m_formatter; |
139 | QPointer<QValue3DAxisFormatter> m_ctrlFormatter; |
140 | |
141 | // Renderer items |
142 | Drawer *m_drawer; // Not owned |
143 | LabelItem m_titleItem; |
144 | QList<LabelItem *> m_labelItems; |
145 | QVector<float> m_adjustedGridLinePositions; |
146 | QVector<float> m_adjustedLabelPositions; |
147 | bool m_positionsDirty; |
148 | float m_translate; |
149 | float m_scale; |
150 | float m_labelAutoRotation; |
151 | bool m_titleVisible; |
152 | bool m_titleFixed; |
153 | |
154 | Q_DISABLE_COPY(AxisRenderCache) |
155 | }; |
156 | |
157 | QT_END_NAMESPACE_DATAVISUALIZATION |
158 | |
159 | #endif |
160 |