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Clone from http://code.qt.io/qt/qtcharts.git

Spline somewhat working
Marek Rosa -
r423:b60b8b7d9d8b
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@@ -11,13 +11,27 SplineWidget::SplineWidget(QWidget *parent)
11 {
11 {
12 //create QSplineSeries
12 //create QSplineSeries
13 QSplineSeries* series = new QSplineSeries(this);
13 QSplineSeries* series = new QSplineSeries(this);
14 series->add(QPointF(150, 100));
14 // series->add(QPointF(150, 100));
15 series->add(QPointF(200, 180));
15 // series->add(QPointF(200, 130));
16 series->add(QPointF(240, 130));
16 // series->add(QPointF(250, 120));
17 series->add(QPointF(270, 120));
17 // series->add(QPointF(300, 140));
18 series->add(QPointF(310, 120));
18 // series->add(QPointF(350, 100));
19 series->add(QPointF(420, 160));
19 // series->add(QPointF(400, 120));
20 series->add(QPointF(535, 250));
20 // series->add(QPointF(450, 150));
21 //// series->add(QPointF(600, 150));
22 // series->add(QPointF(500, 145));
23 // series->add(QPointF(550, 170));
24 // series->add(QPointF(600, 190));
25 // series->add(QPointF(650, 210));
26 // series->add(QPointF(700, 190));
27 // series->add(QPointF(750, 180));
28 // series->add(QPointF(800, 170));
29
30 qsrand(time(NULL));
31 for (int i = 0; i < 100; i++)
32 {
33 series->add(QPointF(i*7, qrand()%600));
34 }
21
35
22 series->calculateControlPoints();
36 series->calculateControlPoints();
23
37
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@@ -6,21 +6,10 QTCOMMERCIALCHART_BEGIN_NAMESPACE
6 SplinePresenter::SplinePresenter(QSplineSeries* series, QGraphicsObject *parent) :
6 SplinePresenter::SplinePresenter(QSplineSeries* series, QGraphicsObject *parent) :
7 LineChartItem(0, series, parent)//,m_boundingRect()
7 LineChartItem(0, series, parent)//,m_boundingRect()
8 {
8 {
9 // if (parent)
9 //
10 // m_boundingRect = parent->boundingRect();
11 // else
12 // m_boundingRect = QRectF(10,50, 250, 250);
13 }
10 }
14
11
15 //void SplinePresenter::handleGeometryChanged(const QRectF&)
16 //{
17 // update();
18 //}
19
12
20 //void SplinePresenter::handleDomainChanged(const Domain& domain)
21 //{
22 // //
23 //}
24
13
25 QPointF SplinePresenter::calculateGeometryControlPoint(int index) const
14 QPointF SplinePresenter::calculateGeometryControlPoint(int index) const
26 {
15 {
@@ -36,70 +25,49 void SplinePresenter::applyGeometry(QVector<QPointF>& points)
36 {
25 {
37 if(points.size()==0) return;
26 if(points.size()==0) return;
38
27
39 // QList<QGraphicsItem*> items = m_items.childItems();
40
41 QPainterPath splinePath;
28 QPainterPath splinePath;
42 const QPointF& point = points.at(0);
29 const QPointF& point = points.at(0);
43 splinePath.moveTo(point);
30 splinePath.moveTo(point);
44 // QGraphicsItem* item = items.at(0);
45 // item->setPos(point.x()-1,point.y()-1);
46 // if(!m_clipRect.contains(point)) item->setVisible(false);
47
31
48 QSplineSeries* splineSeries = qobject_cast<QSplineSeries*>(m_series);
32 QSplineSeries* splineSeries = qobject_cast<QSplineSeries*>(m_series);
49 for (int i = 0; i < splineSeries->count() - 1; i++)
33 for (int i = 0; i < splineSeries->count() - 1; i++)
50 {
34 {
51 const QPointF& point = points.at(i + 1);
35 const QPointF& point = points.at(i + 1);
52 // painter->setPen(Qt::red);
53 // splinePath.cubicTo(qobject_cast<QSplineSeries*>(m_series)->controlPoint(2 * i), qobject_cast<QSplineSeries*>(m_series)->controlPoint(2 * i + 1), QPointF(m_series->x(i + 1), m_series->y(i + 1)));
54 splinePath.cubicTo(calculateGeometryControlPoint(2 * i), calculateGeometryControlPoint(2 * i + 1), point);
36 splinePath.cubicTo(calculateGeometryControlPoint(2 * i), calculateGeometryControlPoint(2 * i + 1), point);
55 // painter->drawEllipse(m_series->at(i), 4, 4);
56
57 // painter->setPen(Qt::blue);
58 // painter->drawLine(m_series->at(i), m_series->controlPoint(2 * i));
59 // painter->drawLine(m_series->at(i + 1), m_series->controlPoint(2 * i + 1));
60 // painter->drawEllipse(m_series->controlPoint(2 * i), 4, 4);
61 // painter->drawEllipse(m_series->controlPoint(2 * i + 1), 4, 4);
62 }
37 }
63
38
64 // for(int i=1 ; i< points.size();i++) {
39
65 // QGraphicsItem* item = items.at(i);
66 // const QPointF& point = points.at(i);
67 // item->setPos(point.x()-1,point.y()-1);
68 // if(!m_clipRect.contains(point)) item->setVisible(false);
69 // path.lineTo(point);
70 // }
71
40
72 prepareGeometryChange();
41 prepareGeometryChange();
73 m_path = splinePath;
42 m_path = splinePath;
74 m_rect = splinePath.boundingRect();
43 m_rect = splinePath.boundingRect();
75 }
44 }
76
45
77 //void SplinePresenter::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
46 void SplinePresenter::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
78 //{
47 {
79 // Q_UNUSED(widget);
48 Q_UNUSED(widget);
80 // Q_UNUSED(option);
49 Q_UNUSED(option);
81 // painter->save();
50 painter->save();
82
51 painter->setPen(m_pen);
83 // painter->setPen(Qt::SolidLine);
52 painter->setClipRect(m_clipRect);
53 painter->drawPath(m_path);
84
54
85 // QPainterPath splinePath;
55 QSplineSeries* splineSeries = qobject_cast<QSplineSeries*>(m_series);
86 // splinePath.moveTo(m_series->at(0));
56 for (int i = 0; i < splineSeries->count() - 1; i++)
87 // for (int i = 0; i < m_series->count() - 1; i++)
57 {
88 // {
58 painter->setPen(Qt::red);
89 // painter->setPen(Qt::red);
59 painter->drawEllipse(m_points[i], 4, 4);
90 // splinePath.cubicTo(m_series->controlPoint(2 * i), m_series->controlPoint(2 * i + 1), m_series->at(i + 1));
91 // painter->drawEllipse(m_series->at(i), 4, 4);
92
60
93 // painter->setPen(Qt::blue);
61 painter->setPen(Qt::blue);
94 // painter->drawLine(m_series->at(i), m_series->controlPoint(2 * i));
62 // painter->drawLine(m_series->at(i), m_series->controlPoint(2 * i));
95 // painter->drawLine(m_series->at(i + 1), m_series->controlPoint(2 * i + 1));
63 // painter->drawLine(m_series->at(i + 1), m_series->controlPoint(2 * i + 1));
96 // painter->drawEllipse(m_series->controlPoint(2 * i), 4, 4);
64 painter->drawEllipse(calculateGeometryControlPoint(2 * i), 4, 4);
97 // painter->drawEllipse(m_series->controlPoint(2 * i + 1), 4, 4);
65 painter->drawEllipse(calculateGeometryControlPoint(2 * i + 1), 4, 4);
98 // }
66 }
99 // painter->setPen(Qt::red);
67 painter->setPen(Qt::red);
100 // painter->drawPath(splinePath);
68 painter->drawEllipse(m_points[m_points.count() - 1], 4, 4);
101 // painter->restore();
69 painter->restore();
102 //}
70 }
103
71
104 #include "moc_splinepresenter_p.cpp"
72 #include "moc_splinepresenter_p.cpp"
105
73
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@@ -20,18 +20,11 public:
20
20
21 QPointF calculateGeometryControlPoint(int index) const;
21 QPointF calculateGeometryControlPoint(int index) const;
22
22
23 // QRectF boundingRect() const { return m_boundingRect; }
23 void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
24 // void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
25
24
26 signals:
25 signals:
27
26
28 public slots:
27 public slots:
29 // void handleDomainChanged(const Domain& domain);
30 // void handleGeometryChanged(const QRectF& rect);
31
32 private:
33 // QSplineSeries* m_series;
34 // QRectF m_boundingRect;
35
28
36 };
29 };
37
30
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