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Added copyright headers to *.h/*.cpp files missing them...
Miikka Heikkinen -
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@@ -1,11 +1,31
1 /****************************************************************************
2 **
3 ** Copyright (C) 2013 Digia Plc
4 ** All rights reserved.
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 **
7 ** This file is part of the Qt Commercial Charts Add-on.
8 **
9 ** $QT_BEGIN_LICENSE$
10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 ** accordance with the Qt Commercial License Agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia.
14 **
15 ** If you have questions regarding the use of this file, please use
16 ** contact form at http://qt.digia.com
17 ** $QT_END_LICENSE$
18 **
19 ****************************************************************************/
20
1 21 #include <QApplication>
2 22 #include "widget.h"
3 23
4 24 int main(int argc, char *argv[])
5 25 {
6 26 QApplication a(argc, argv);
7 27 Widget w;
8 28 w.show();
9 29
10 30 return a.exec();
11 31 }
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@@ -1,62 +1,82
1 /****************************************************************************
2 **
3 ** Copyright (C) 2013 Digia Plc
4 ** All rights reserved.
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 **
7 ** This file is part of the Qt Commercial Charts Add-on.
8 **
9 ** $QT_BEGIN_LICENSE$
10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 ** accordance with the Qt Commercial License Agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia.
14 **
15 ** If you have questions regarding the use of this file, please use
16 ** contact form at http://qt.digia.com
17 ** $QT_END_LICENSE$
18 **
19 ****************************************************************************/
20
1 21 #include "widget.h"
2 22 #include <QAudioDeviceInfo>
3 23 #include <QAudioInput>
4 24 #include <QChartView>
5 25 #include <QLineSeries>
6 26 #include <QChart>
7 27 #include <QVBoxLayout>
8 28 #include <QValueAxis>
9 29 #include "xyseriesiodevice.h"
10 30
11 31 QTCOMMERCIALCHART_USE_NAMESPACE
12 32
13 33 Widget::Widget(QWidget *parent)
14 34 : QWidget(parent),
15 35 m_device(0),
16 36 m_chart(0),
17 37 m_series(0),
18 38 m_audioInput(0)
19 39 {
20 40 m_chart = new QChart;
21 41 QChartView *chartView = new QChartView(m_chart);
22 42 chartView->setMinimumSize(800, 600);
23 43 m_series = new QLineSeries;
24 44 m_chart->addSeries(m_series);
25 45 QValueAxis *axisX = new QValueAxis;
26 46 axisX->setRange(0, 2000);
27 47 axisX->setLabelFormat("%g");
28 48 axisX->setTitleText("Samples");
29 49 QValueAxis *axisY = new QValueAxis;
30 50 axisY->setRange(-1, 1);
31 51 axisY->setTitleText("Audio level");
32 52 m_chart->setAxisX(axisX, m_series);
33 53 m_chart->setAxisY(axisY, m_series);
34 54 m_chart->legend()->hide();
35 55 m_chart->setTitle("Data from the microphone");
36 56
37 57 QVBoxLayout *mainLayout = new QVBoxLayout;
38 58 mainLayout->addWidget(chartView);
39 59 setLayout(mainLayout);
40 60
41 61 QAudioFormat formatAudio;
42 62 formatAudio.setSampleRate(8000);
43 63 formatAudio.setChannelCount(1);
44 64 formatAudio.setSampleSize(8);
45 65 formatAudio.setCodec("audio/pcm");
46 66 formatAudio.setByteOrder(QAudioFormat::LittleEndian);
47 67 formatAudio.setSampleType(QAudioFormat::UnSignedInt);
48 68
49 69 QAudioDeviceInfo inputDevices = QAudioDeviceInfo::defaultInputDevice();
50 70 m_audioInput = new QAudioInput(inputDevices,formatAudio, this);
51 71
52 72 m_device = new XYSeriesIODevice(m_series, this);
53 73 m_device->open(QIODevice::WriteOnly);
54 74
55 75 m_audioInput->start(m_device);
56 76 }
57 77
58 78 Widget::~Widget()
59 79 {
60 80 m_audioInput->stop();
61 81 m_device->close();
62 82 }
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@@ -1,32 +1,52
1 /****************************************************************************
2 **
3 ** Copyright (C) 2013 Digia Plc
4 ** All rights reserved.
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 **
7 ** This file is part of the Qt Commercial Charts Add-on.
8 **
9 ** $QT_BEGIN_LICENSE$
10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 ** accordance with the Qt Commercial License Agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia.
14 **
15 ** If you have questions regarding the use of this file, please use
16 ** contact form at http://qt.digia.com
17 ** $QT_END_LICENSE$
18 **
19 ****************************************************************************/
20
1 21 #ifndef WIDGET_H
2 22 #define WIDGET_H
3 23
4 24 #include <QWidget>
5 25 #include <QChartGlobal>
6 26
7 27 QTCOMMERCIALCHART_BEGIN_NAMESPACE
8 28 class QLineSeries;
9 29 class QChart;
10 30 QTCOMMERCIALCHART_END_NAMESPACE
11 31
12 32 QTCOMMERCIALCHART_USE_NAMESPACE
13 33
14 34 class XYSeriesIODevice;
15 35 class QAudioInput;
16 36
17 37 class Widget : public QWidget
18 38 {
19 39 Q_OBJECT
20 40
21 41 public:
22 42 Widget(QWidget *parent = 0);
23 43 ~Widget();
24 44
25 45 private:
26 46 XYSeriesIODevice *m_device;
27 47 QChart *m_chart;
28 48 QLineSeries *m_series;
29 49 QAudioInput *m_audioInput;
30 50 };
31 51
32 52 #endif // WIDGET_H
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@@ -1,37 +1,57
1 /****************************************************************************
2 **
3 ** Copyright (C) 2013 Digia Plc
4 ** All rights reserved.
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 **
7 ** This file is part of the Qt Commercial Charts Add-on.
8 **
9 ** $QT_BEGIN_LICENSE$
10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 ** accordance with the Qt Commercial License Agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia.
14 **
15 ** If you have questions regarding the use of this file, please use
16 ** contact form at http://qt.digia.com
17 ** $QT_END_LICENSE$
18 **
19 ****************************************************************************/
20
1 21 #include "xyseriesiodevice.h"
2 22 #include <QXYSeries>
3 23
4 24 XYSeriesIODevice::XYSeriesIODevice(QXYSeries * series, QObject *parent) :
5 25 QIODevice(parent),
6 26 m_series(series)
7 27 {
8 28 }
9 29
10 30 qint64 XYSeriesIODevice::readData(char * data, qint64 maxSize)
11 31 {
12 32 Q_UNUSED(data)
13 33 Q_UNUSED(maxSize)
14 34 return -1;
15 35 }
16 36
17 37 qint64 XYSeriesIODevice::writeData(const char * data, qint64 maxSize)
18 38 {
19 39 qint64 range = 2000;
20 40 QList<QPointF> oldPoints = m_series->points();
21 41 QList<QPointF> points;
22 42 int resolution = 4;
23 43
24 44 if (oldPoints.count() < range) {
25 45 points = m_series->points();
26 46 } else {
27 47 for (int i = maxSize/resolution; i < oldPoints.count(); i++)
28 48 points.append(QPointF(i - maxSize/resolution, oldPoints.at(i).y()));
29 49 }
30 50
31 51 qint64 size = points.count();
32 52 for (int k = 0; k < maxSize/resolution; k++)
33 53 points.append(QPointF(k + size, ((quint8)data[resolution * k] - 128)/128.0));
34 54
35 55 m_series->replace(points);
36 56 return maxSize;
37 57 }
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@@ -1,27 +1,47
1 /****************************************************************************
2 **
3 ** Copyright (C) 2013 Digia Plc
4 ** All rights reserved.
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 **
7 ** This file is part of the Qt Commercial Charts Add-on.
8 **
9 ** $QT_BEGIN_LICENSE$
10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 ** accordance with the Qt Commercial License Agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia.
14 **
15 ** If you have questions regarding the use of this file, please use
16 ** contact form at http://qt.digia.com
17 ** $QT_END_LICENSE$
18 **
19 ****************************************************************************/
20
1 21 #ifndef XYSERIESIODEVICE_H
2 22 #define XYSERIESIODEVICE_H
3 23
4 24 #include <QIODevice>
5 25 #include <QChartGlobal>
6 26
7 27 QTCOMMERCIALCHART_BEGIN_NAMESPACE
8 28 class QXYSeries;
9 29 QTCOMMERCIALCHART_END_NAMESPACE
10 30
11 31 QTCOMMERCIALCHART_USE_NAMESPACE
12 32
13 33 class XYSeriesIODevice : public QIODevice
14 34 {
15 35 Q_OBJECT
16 36 public:
17 37 explicit XYSeriesIODevice(QXYSeries * series, QObject *parent = 0);
18 38
19 39 protected:
20 40 qint64 readData(char * data, qint64 maxSize);
21 41 qint64 writeData(const char * data, qint64 maxSize);
22 42
23 43 private:
24 44 QXYSeries *m_series;
25 45 };
26 46
27 47 #endif // XYSERIESIODEVICE_H
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@@ -1,99 +1,119
1 /****************************************************************************
2 **
3 ** Copyright (C) 2013 Digia Plc
4 ** All rights reserved.
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 **
7 ** This file is part of the Qt Commercial Charts Add-on.
8 **
9 ** $QT_BEGIN_LICENSE$
10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 ** accordance with the Qt Commercial License Agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia.
14 **
15 ** If you have questions regarding the use of this file, please use
16 ** contact form at http://qt.digia.com
17 ** $QT_END_LICENSE$
18 **
19 ****************************************************************************/
20
1 21 #include "callout.h"
2 22 #include <QPainter>
3 23 #include <QFontMetrics>
4 24 #include <QGraphicsSceneMouseEvent>
5 25 #include <QMouseEvent>
6 26
7 27 Callout::Callout(QGraphicsItem * parent):
8 28 QGraphicsItem(parent)
9 29 {
10 30 }
11 31
12 32 QRectF Callout::boundingRect() const
13 33 {
14 34 QPointF anchor = mapFromParent(m_anchor);
15 35 QRectF rect;
16 36 rect.setLeft(qMin(m_rect.left(), anchor.x()));
17 37 rect.setRight(qMax(m_rect.right(), anchor.x()));
18 38 rect.setTop(qMin(m_rect.top(), anchor.y()));
19 39 rect.setBottom(qMax(m_rect.bottom(), anchor.y()));
20 40 return rect;
21 41 }
22 42
23 43 void Callout::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
24 44 {
25 45 Q_UNUSED(option)
26 46 Q_UNUSED(widget)
27 47 QPainterPath path;
28 48 path.addRoundedRect(m_rect, 5, 5);
29 49
30 50 QPointF anchor = mapFromParent(m_anchor);
31 51 if (!m_rect.contains(anchor)) {
32 52 QPointF point1, point2;
33 53
34 54 // establish the position of the anchor point in relation to m_rect
35 55 bool above = anchor.y() <= m_rect.top();
36 56 bool aboveCenter = anchor.y() > m_rect.top() && anchor.y() <= m_rect.center().y();
37 57 bool belowCenter = anchor.y() > m_rect.center().y() && anchor.y() <= m_rect.bottom();
38 58 bool below = anchor.y() > m_rect.bottom();
39 59
40 60 bool onLeft = anchor.x() <= m_rect.left();
41 61 bool leftOfCenter = anchor.x() > m_rect.left() && anchor.x() <= m_rect.center().x();
42 62 bool rightOfCenter = anchor.x() > m_rect.center().x() && anchor.x() <= m_rect.right();
43 63 bool onRight = anchor.x() > m_rect.right();
44 64
45 65 // get the nearest m_rect corner.
46 66 qreal x = (onRight + rightOfCenter) * m_rect.width();
47 67 qreal y = (below + belowCenter) * m_rect.height();
48 68 bool cornerCase = (above && onLeft) || (above && onRight) || (below && onLeft) || (below && onRight);
49 69 bool vertical = qAbs(anchor.x() - x) > qAbs(anchor.y() - y);
50 70
51 71 qreal x1 = x + leftOfCenter * 10 - rightOfCenter * 20 + cornerCase * !vertical * (onLeft * 10 - onRight * 20);
52 72 qreal y1 = y + aboveCenter * 10 - belowCenter * 20 + cornerCase * vertical * (above * 10 - below * 20);;
53 73 point1.setX(x1);
54 74 point1.setY(y1);
55 75
56 76 qreal x2 = x + leftOfCenter * 20 - rightOfCenter * 10 + cornerCase * !vertical * (onLeft * 20 - onRight * 10);;
57 77 qreal y2 = y + aboveCenter * 20 - belowCenter * 10 + cornerCase * vertical * (above * 20 - below * 10);;
58 78 point2.setX(x2);
59 79 point2.setY(y2);
60 80
61 81 path.moveTo(point1);
62 82 path.lineTo(mapFromParent(m_anchor));
63 83 path.lineTo(point2);
64 84 path = path.simplified();
65 85 }
66 86 painter->setBrush(QColor(255, 255, 255));
67 87 painter->drawPath(path);
68 88 painter->drawText(m_textRect, m_text);
69 89 }
70 90
71 91 void Callout::mousePressEvent(QGraphicsSceneMouseEvent *event)
72 92 {
73 93 event->setAccepted(true);
74 94 }
75 95
76 96 void Callout::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
77 97 {
78 98 if (event->buttons() & Qt::LeftButton){
79 99 setPos(mapToParent(event->pos() - event->buttonDownPos(Qt::LeftButton)));
80 100 event->setAccepted(true);
81 101 } else {
82 102 event->setAccepted(false);
83 103 }
84 104 }
85 105
86 106 void Callout::setText(const QString &text)
87 107 {
88 108 m_text = text;
89 109 QFontMetrics metrics(m_font);
90 110 m_textRect = metrics.boundingRect(QRect(0, 0, 150, 150), Qt::AlignLeft, m_text);
91 111 m_textRect.translate(5, 5);
92 112 prepareGeometryChange();
93 113 m_rect = m_textRect.adjusted(-5, -5, 5, 5);
94 114 }
95 115
96 116 void Callout::setAnchor(QPointF point)
97 117 {
98 118 m_anchor = point;
99 119 }
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@@ -1,32 +1,52
1 /****************************************************************************
2 **
3 ** Copyright (C) 2013 Digia Plc
4 ** All rights reserved.
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 **
7 ** This file is part of the Qt Commercial Charts Add-on.
8 **
9 ** $QT_BEGIN_LICENSE$
10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 ** accordance with the Qt Commercial License Agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia.
14 **
15 ** If you have questions regarding the use of this file, please use
16 ** contact form at http://qt.digia.com
17 ** $QT_END_LICENSE$
18 **
19 ****************************************************************************/
20
1 21 #ifndef CALLOUT_H
2 22 #define CALLOUT_H
3 23
4 24 #include <QGraphicsItem>
5 25 #include <QFont>
6 26
7 27 class QGraphicsSceneMouseEvent;
8 28
9 29 class Callout : public QGraphicsItem
10 30 {
11 31 public:
12 32 Callout(QGraphicsItem * parent = 0);
13 33
14 34 void setText(const QString &text);
15 35 void setAnchor(QPointF point);
16 36
17 37 QRectF boundingRect() const;
18 38 void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,QWidget *widget);
19 39
20 40 protected:
21 41 void mousePressEvent(QGraphicsSceneMouseEvent *event);
22 42 void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
23 43
24 44 private:
25 45 QString m_text;
26 46 QRectF m_textRect;
27 47 QRectF m_rect;
28 48 QPointF m_anchor;
29 49 QFont m_font;
30 50 };
31 51
32 52 #endif // CALLOUT_H
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@@ -1,11 +1,31
1 /****************************************************************************
2 **
3 ** Copyright (C) 2013 Digia Plc
4 ** All rights reserved.
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 **
7 ** This file is part of the Qt Commercial Charts Add-on.
8 **
9 ** $QT_BEGIN_LICENSE$
10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 ** accordance with the Qt Commercial License Agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia.
14 **
15 ** If you have questions regarding the use of this file, please use
16 ** contact form at http://qt.digia.com
17 ** $QT_END_LICENSE$
18 **
19 ****************************************************************************/
20
1 21 #include <QApplication>
2 22 #include "view.h"
3 23
4 24 int main(int argc, char *argv[])
5 25 {
6 26 QApplication a(argc, argv);
7 27 View w;
8 28 w.show();
9 29
10 30 return a.exec();
11 31 }
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@@ -1,26 +1,55
1 /****************************************************************************
2 **
3 ** Copyright (C) 2013 Digia Plc
4 ** All rights reserved.
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 **
7 ** This file is part of the Qt Commercial Charts Add-on.
8 **
9 ** $QT_BEGIN_LICENSE$
10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 ** accordance with the Qt Commercial License Agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia.
14 **
15 ** If you have questions regarding the use of this file, please use
16 ** contact form at http://qt.digia.com
17 ** $QT_END_LICENSE$
18 **
19 ****************************************************************************/
20
21 // W A R N I N G
22 // -------------
23 //
24 // This file is not part of the QtCommercial Chart API. It exists purely as an
25 // implementation detail. This header file may change from version to
26 // version without notice, or even be removed.
27 //
28 // We mean it.
29
1 30 #ifndef CHARTHELPERS_P_H
2 31 #define CHARTHELPERS_P_H
3 32
4 33 #include <qnumeric.h>
5 34 #include <QPointF>
6 35
7 36 static inline bool isValidValue(qreal value)
8 37 {
9 38 if (qIsNaN(value) || qIsInf(value)) {
10 39 qWarning("Ignored NaN, Inf, or -Inf value.");
11 40 return false;
12 41 }
13 42 return true;
14 43 }
15 44
16 45 static inline bool isValidValue(qreal x, qreal y)
17 46 {
18 47 return (isValidValue(x) && isValidValue(y));
19 48 }
20 49
21 50 static inline bool isValidValue(const QPointF point)
22 51 {
23 52 return (isValidValue(point.x()) && isValidValue(point.y()));
24 53 }
25 54
26 55 #endif // CHARTHELPERS_P_H
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@@ -1,74 +1,83
1 1 /****************************************************************************
2 2 **
3 3 ** Copyright (C) 2013 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 // W A R N I N G
22 // -------------
23 //
24 // This file is not part of the QtCommercial Chart API. It exists purely as an
25 // implementation detail. This header file may change from version to
26 // version without notice, or even be removed.
27 //
28 // We mean it.
29
21 30 #ifndef CHARTLAYOUT_H
22 31 #define CHARTLAYOUT_H
23 32 #include <QGraphicsLayout>
24 33 #include <QMargins>
25 34 #include "qchartglobal.h"
26 35
27 36 QTCOMMERCIALCHART_BEGIN_NAMESPACE
28 37
29 38 class ChartPresenter;
30 39 class ChartTitle;
31 40 class QLegend;
32 41 class ChartAxis;
33 42 class ChartBackground;
34 43
35 44 class ChartLayout : public QGraphicsLayout
36 45 {
37 46 public:
38 47
39 48 ChartLayout(ChartPresenter *presenter);
40 49 virtual ~ChartLayout();
41 50
42 51 void setMargins(const QMargins &margins);
43 52 QMargins margins() const;
44 53
45 54 void setGeometry(const QRectF &rect);
46 55
47 56 protected:
48 57 QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
49 58 int count() const { return 0; }
50 59 QGraphicsLayoutItem *itemAt(int) const { return 0; };
51 60 void removeAt(int) {};
52 61
53 62 private:
54 63 QRectF calculateBackgroundGeometry(const QRectF &geometry, ChartBackground *background) const;
55 64 QRectF calculateContentGeometry(const QRectF &geometry) const;
56 65 QRectF calculateTitleGeometry(const QRectF &geometry, ChartTitle *title) const;
57 66 QRectF calculateLegendGeometry(const QRectF &geometry, QLegend *legend) const;
58 67 QRectF calculateAxisGeometry(const QRectF &geometry, const QList<ChartAxis *>& axes) const;
59 68 QRectF calculateBackgroundMinimum(const QRectF &minimum) const;
60 69 QRectF calculateContentMinimum(const QRectF &minimum) const;
61 70 QRectF calculateTitleMinimum(const QRectF &minimum, ChartTitle *title) const;
62 71 QRectF calculateAxisMinimum(const QRectF &minimum, const QList<ChartAxis *>& axes) const;
63 72 QRectF calculateLegendMinimum(const QRectF &minimum, QLegend *legend) const;
64 73
65 74 private:
66 75 ChartPresenter *m_presenter;
67 76 QMargins m_margins;
68 77 QRectF m_minChartRect;
69 78 QRectF m_minAxisRect;
70 79 };
71 80
72 81 QTCOMMERCIALCHART_END_NAMESPACE
73 82
74 83 #endif
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@@ -1,67 +1,76
1 1 /****************************************************************************
2 2 **
3 3 ** Copyright (C) 2013 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 // W A R N I N G
22 // -------------
23 //
24 // This file is not part of the QtCommercial Chart API. It exists purely as an
25 // implementation detail. This header file may change from version to
26 // version without notice, or even be removed.
27 //
28 // We mean it.
29
21 30 #ifndef LEGENDLAYOUT_H
22 31 #define LEGENDLAYOUT_H
23 32 #include <QGraphicsLayout>
24 33 #include "qchartglobal.h"
25 34
26 35 QTCOMMERCIALCHART_BEGIN_NAMESPACE
27 36
28 37 class QLegend;
29 38
30 39 class LegendLayout : public QGraphicsLayout
31 40 {
32 41 public:
33 42
34 43 LegendLayout(QLegend *legend);
35 44 virtual ~LegendLayout();
36 45
37 46 void setGeometry(const QRectF &rect);
38 47
39 48 void setOffset(qreal x, qreal y);
40 49 QPointF offset() const;
41 50
42 51 void invalidate();
43 52 protected:
44 53 QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
45 54 int count() const { return 0; }
46 55 QGraphicsLayoutItem *itemAt(int) const { return 0; };
47 56 void removeAt(int) {};
48 57
49 58 private:
50 59 void setAttachedGeometry(const QRectF &rect);
51 60 void setDettachedGeometry(const QRectF &rect);
52 61
53 62 private:
54 63 QLegend *m_legend;
55 64 qreal m_offsetX;
56 65 qreal m_offsetY;
57 66 qreal m_minOffsetX;
58 67 qreal m_minOffsetY;
59 68 qreal m_maxOffsetX;
60 69 qreal m_maxOffsetY;
61 70 qreal m_width;
62 71 qreal m_height;
63 72 };
64 73
65 74 QTCOMMERCIALCHART_END_NAMESPACE
66 75
67 76 #endif
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