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Adds ScopedPointer for axis title element
Michal Klocek -
r2141:f4b9e33f4ebb
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1 1 /****************************************************************************
2 2 **
3 3 ** Copyright (C) 2012 Digia Plc
4 4 ** All rights reserved.
5 5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 6 **
7 7 ** This file is part of the Qt Commercial Charts Add-on.
8 8 **
9 9 ** $QT_BEGIN_LICENSE$
10 10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 11 ** accordance with the Qt Commercial License Agreement provided with the
12 12 ** Software or, alternatively, in accordance with the terms contained in
13 13 ** a written agreement between you and Digia.
14 14 **
15 15 ** If you have questions regarding the use of this file, please use
16 16 ** contact form at http://qt.digia.com
17 17 ** $QT_END_LICENSE$
18 18 **
19 19 ****************************************************************************/
20 20
21 21 // W A R N I N G
22 22 // -------------
23 23 //
24 24 // This file is not part of the QtCommercial Chart API. It exists purely as an
25 25 // implementation detail. This header file may change from version to
26 26 // version without notice, or even be removed.
27 27 //
28 28 // We mean it.
29 29
30 30 #ifndef CHARTAXIS_H
31 31 #define CHARTAXIS_H
32 32
33 33 #include "qchartglobal.h"
34 34 #include "chartelement_p.h"
35 35 #include "axisanimation_p.h"
36 36 #include <QGraphicsItem>
37 37 #include <QGraphicsLayoutItem>
38 38 #include <QFont>
39 39
40 40 QTCOMMERCIALCHART_BEGIN_NAMESPACE
41 41
42 42 class QAbstractAxis;
43 43 class ChartPresenter;
44 44
45 45 class ChartAxis : public ChartElement, public QGraphicsLayoutItem
46 46 {
47 47 Q_OBJECT
48 48 Q_INTERFACES(QGraphicsLayoutItem)
49 49 public:
50 50
51 51 ChartAxis(QAbstractAxis *axis, ChartPresenter *presenter, bool intervalAxis = false);
52 52 ~ChartAxis();
53 53
54 54 QAbstractAxis* axis() const { return m_chartAxis; }
55 55
56 56 void setArrowOpacity(qreal opacity);
57 57 qreal arrowOpacity() const;
58 58 void setArrowVisibility(bool visible);
59 59
60 60 void setGridOpacity(qreal opacity);
61 61 qreal gridOpacity() const;
62 62 void setGridVisibility(bool visible);
63 63
64 64 void setLabelsOpacity(qreal opacity);
65 65 qreal labelsOpacity() const;
66 66 void setLabelsVisibility(bool visible);
67 67
68 68 void setShadesOpacity(qreal opacity);
69 69 qreal shadesOpacity() const;
70 70 void setShadesVisibility(bool visible);
71 71
72 72 void setLabelsAngle(int angle);
73 73 int labelsAngle()const { return m_labelsAngle; }
74 74
75 75 void setShadesBrush(const QBrush &brush);
76 76 void setShadesPen(const QPen &pen);
77 77
78 78 void setArrowPen(const QPen &pen);
79 79 void setGridPen(const QPen &pen);
80 80
81 81 void setLabelsPen(const QPen &pen);
82 82 void setLabelsBrush(const QBrush &brush);
83 83 void setLabelsFont(const QFont &font);
84 84 void setLabelPadding(int padding);
85 85 int labelPadding() const { return m_labelPadding;};
86 86
87 87 void setTitlePen(const QPen &pen);
88 88 void setTitleBrush(const QBrush &brush);
89 89 void setTitleFont(const QFont &font);
90 90 QFont titleFont() const { return m_titleFont; };
91 91 void setTitleText(const QString &title);
92 92 QString titleText() const {return m_titleText; };
93 93
94 94 void setLayout(QVector<qreal> &layout);
95 95 QVector<qreal> layout() const { return m_layoutVector; }
96 96
97 97 void setAnimation(AxisAnimation *animation);
98 98 ChartAnimation *animation() const { return m_animation; };
99 99
100 100 Qt::Orientation orientation() const;
101 101 Qt::Alignment alignment() const;
102 102
103 103 bool isVisible();
104 104 void hide();
105 105
106 106 void setGeometry(const QRectF &axis, const QRectF &grid);
107 107 QRectF axisGeometry() const { return m_axisRect; }
108 108 QRectF gridGeometry() const { return m_gridRect; }
109 109
110 110 void setLabels(const QStringList &labels);
111 111 QStringList labels() const { return m_labelsList; }
112 112
113 113 //this flag indicates that axis is used to show intervals it means labels are in between ticks
114 114 bool intervalAxis() const { return m_intervalAxis; }
115 115
116 116 virtual QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
117 117
118 118 protected:
119 119 void setGeometry(const QRectF &size) { Q_UNUSED(size);};
120 120 virtual void updateGeometry() = 0;
121 121 virtual QVector<qreal> calculateLayout() const = 0;
122 122
123 123 QList<QGraphicsItem *> lineItems() { return m_grid->childItems(); };
124 124 QList<QGraphicsItem *> labelItems() { return m_labels->childItems();};
125 125 QList<QGraphicsItem *> shadeItems() { return m_shades->childItems();};
126 126 QList<QGraphicsItem *> arrowItems() { return m_arrow->childItems();};
127 QGraphicsSimpleTextItem* titleItem() const { return m_title;}
127 QGraphicsSimpleTextItem* titleItem() const { return m_title.data();}
128 128
129 129 QFont font() const { return m_font; }
130 130 qreal min() const {return m_min; }
131 131 qreal max() const {return m_max; }
132 132 QStringList createValueLabels(int ticks) const;
133 133 QStringList createDateTimeLabels(const QString &format, int ticks) const;
134 134
135 135 public Q_SLOTS:
136 136 virtual void handleAxisUpdated();
137 137 virtual void handleDomainUpdated();
138 138
139 139 private:
140 140 inline bool isEmpty();
141 141 void createItems(int count);
142 142 void deleteItems(int count);
143 143 void updateLayout(QVector<qreal> &layout);
144 144 void axisSelected();
145 145
146 146 private:
147 147 QAbstractAxis *m_chartAxis;
148 148 int m_labelsAngle;
149 149 QRectF m_axisRect;
150 150 QRectF m_gridRect;
151 151 QScopedPointer<QGraphicsItemGroup> m_grid;
152 152 QScopedPointer<QGraphicsItemGroup> m_shades;
153 153 QScopedPointer<QGraphicsItemGroup> m_labels;
154 154 QScopedPointer<QGraphicsItemGroup> m_arrow;
155 QGraphicsSimpleTextItem *m_title;
155 QScopedPointer<QGraphicsSimpleTextItem> m_title;
156 156 QVector<qreal> m_layoutVector;
157 157 qreal m_min;
158 158 qreal m_max;
159 159 AxisAnimation *m_animation;
160 160 QFont m_font;
161 161 QFont m_titleFont;
162 162 QString m_titleText;
163 163 int m_labelPadding;
164 164 QStringList m_labelsList;
165 165 bool m_intervalAxis;
166 166
167 167 friend class AxisAnimation;
168 168 friend class AxisItem;
169 169
170 170 };
171 171
172 172 class AxisItem: public QGraphicsLineItem
173 173 {
174 174
175 175 public:
176 176 explicit AxisItem(ChartAxis *axis, QGraphicsItem *parent = 0) : QGraphicsLineItem(parent), m_axis(axis) {}
177 177
178 178 protected:
179 179 void mousePressEvent(QGraphicsSceneMouseEvent *event) {
180 180 Q_UNUSED(event)
181 181 m_axis->axisSelected();
182 182 }
183 183
184 184 QRectF boundingRect() const {
185 185 return shape().boundingRect();
186 186 }
187 187
188 188 QPainterPath shape() const {
189 189 QPainterPath path = QGraphicsLineItem::shape();
190 190 QRectF rect = path.boundingRect();
191 191 path.addRect(rect.adjusted(0, 0, m_axis->orientation() != Qt::Horizontal ? 8 : 0, m_axis->orientation() != Qt::Vertical ? 8 : 0));
192 192 return path;
193 193 }
194 194
195 195 private:
196 196 ChartAxis *m_axis;
197 197 };
198 198
199 199 QTCOMMERCIALCHART_END_NAMESPACE
200 200
201 201 #endif /* CHARTAXI_H */
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