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

Refactor xyplotdata...
Michal Klocek -
r25:9ee7e26e06fe
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@@ -1,7 +1,7
1 1 #include "qchart.h"
2 2 #include "qchartseries.h"
3 3 #include "xylinechartitem_p.h"
4 #include "xyplotdata_p.h"
4 #include "xyplotdomain_p.h"
5 5 #include "axis_p.h"
6 6 #include "xygrid_p.h"
7 7 #include <QDebug>
@@ -21,7 +21,7 m_plotDataIndex(0)
21 21
22 22
23 23 //TODO hardcoded values , to removed soon
24 XYPlotData* data = new XYPlotData();
24 XYPlotDomain* data = new XYPlotDomain();
25 25 data->m_minX = 0.0;
26 26 data->m_maxX = 100.0;
27 27 data->m_minY = 0.0;
@@ -51,7 +51,7 void QChart::addSeries(QChartSeries* series)
51 51 {
52 52 case QChartSeries::LINE:
53 53 XYLineChartItem* item = new XYLineChartItem(reinterpret_cast<QXYChartSeries*>(series),this);
54 item->setXYPlotData(*m_plotDataList.at(0));
54 item->updateXYPlotData(*m_plotDataList.at(0));
55 55 m_items<<item;
56 56 break;
57 57 }
@@ -63,8 +63,9 void QChart::setSize(const QSizeF& size) {
63 63 m_rect.adjust(margin(),margin(),-margin(),-margin());
64 64 m_grid->setPos(m_rect.topLeft());
65 65 m_grid->setSize(m_rect.size());
66 m_plotDataList.at(0)->m_viewportRect = m_rect;
66 67 foreach(QGraphicsItem* item , m_items)
67 reinterpret_cast<XYLineChartItem*>(item)->setChartSize(m_rect);
68 reinterpret_cast<XYLineChartItem*>(item)->updateXYPlotData(*m_plotDataList.at(0));
68 69 update();
69 70
70 71 }
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@@ -9,7 +9,7 QCHART_BEGIN_NAMESPACE
9 9 class Axis;
10 10 class XYGrid;
11 11 class QChartSeries;
12 class XYPlotData;
12 class XYPlotDomain;
13 13
14 14 class QCHART_EXPORT QChart : public QGraphicsItem
15 15 {
@@ -34,7 +34,7 private:
34 34 Axis* m_axisX;
35 35 Axis* m_axisY;
36 36 XYGrid* m_grid;
37 QList<XYPlotData*> m_plotDataList;
37 QList<XYPlotDomain*> m_plotDataList;
38 38 QList<QGraphicsItem*> m_items;
39 39 int m_plotDataIndex;
40 40 int m_marginSize;
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@@ -9,14 +9,14 SOURCES += \
9 9 xylinechart/qxychartseries.cpp \
10 10 xylinechart/xylinechartitem.cpp \
11 11 xylinechart/xygrid.cpp \
12 xylinechart/xyplotdata.cpp \
12 xylinechart/xyplotdomain.cpp \
13 13 qchart.cpp \
14 14 axis.cpp \
15 15 qchartwidget.cpp
16 16
17 17 PRIVATE_HEADERS += \
18 18 xylinechart/xylinechartitem_p.h \
19 xylinechart/xyplotdata_p.h \# to be removed
19 xylinechart/xyplotdomain_p.h \
20 20 xylinechart/xygrid_p.h \
21 21 axis_p.h
22 22
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@@ -18,7 +18,7 void XYGrid::setSize(const QSizeF& size)
18 18 m_rect.setSize(size.toSize());
19 19 }
20 20
21 void XYGrid::setXYPlotData(const XYPlotData& xyPlotData)
21 void XYGrid::setXYPlotData(const XYPlotDomain& xyPlotData)
22 22 {
23 23 m_xyPlotData = xyPlotData;
24 24 }
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@@ -2,7 +2,7
2 2 #define XYGRID_H_
3 3
4 4 #include <qchartconfig.h>
5 #include <xyplotdata_p.h>
5 #include <xyplotdomain_p.h>
6 6 #include <QGraphicsItem>
7 7
8 8 QCHART_BEGIN_NAMESPACE
@@ -18,12 +18,12 public:
18 18 virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
19 19
20 20 //TODO: this is just temporary interface
21 void setXYPlotData(const XYPlotData& xyPlotData);
21 void setXYPlotData(const XYPlotDomain& xyPlotData);
22 22 void setSize(const QSizeF& rect);
23 23
24 24 private:
25 25 QRectF m_rect;
26 XYPlotData m_xyPlotData;
26 XYPlotDomain m_xyPlotData;
27 27 };
28 28
29 29 QCHART_END_NAMESPACE
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@@ -9,42 +9,22
9 9 QCHART_BEGIN_NAMESPACE
10 10
11 11 XYLineChartItem::XYLineChartItem(QXYChartSeries* series,QGraphicsItem *parent):QGraphicsItem(parent),
12 m_series(series),
13 m_dirtyGeometry(true)
12 m_series(series)
14 13 {
15 14
16 15 }
17 16
18 void XYLineChartItem::setChartSize(const QRectF& rect)
17 void XYLineChartItem::updateXYPlotData(const XYPlotDomain& data)
19 18 {
20 m_rect = rect;
21 m_dirtyGeometry = true;
22 }
23
24 void XYLineChartItem::setXYPlotData(const XYPlotData& data){
25 19 m_xyPlotData=data;
26 m_dirtyGeometry = true;
27 }
28
29 QRectF XYLineChartItem::boundingRect() const
30 {
31 return m_polyline.boundingRect();
32 }
33
34
35 void XYLineChartItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,QWidget *widget)
36 {
37 if(m_dirtyGeometry) {
38 20
39 m_dirtyGeometry=false;
40
41 if (!m_rect.isValid())
21 if (!m_xyPlotData.m_viewportRect.isValid())
42 22 return;
43 23
44 painter->setClipRect(m_rect.adjusted(+1, +1, -1, -1));
24 const QRect& rect = m_xyPlotData.m_viewportRect;
45 25
46 const qreal deltaX = (m_rect.width()-1)/m_xyPlotData.spanX();
47 const qreal deltaY = (m_rect.height()-1)/m_xyPlotData.spanY();
26 const qreal deltaX = (rect.width()-1)/m_xyPlotData.spanX();
27 const qreal deltaY = (rect.height()-1)/m_xyPlotData.spanY();
48 28
49 29 m_polyline.clear();
50 30 m_polyline.resize(m_series->count());
@@ -52,15 +32,22 void XYLineChartItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *o
52 32 for (int j = 0; j < m_series->count(); ++j) {
53 33 qreal dx = m_series->x(j) - m_xyPlotData.m_minX;
54 34 qreal dy = m_series->y(j) - m_xyPlotData.m_minY;
55 qreal x = (dx * deltaX) + m_rect.left();
56 qreal y = - (dy * deltaY) + m_rect.bottom();
35 qreal x = (dx * deltaX) + rect.left();
36 qreal y = - (dy * deltaY) + rect.bottom();
57 37 m_polyline[j] = QPointF(x, y);
58 38 }
59 painter->setPen(m_series->color());
60 painter->drawPolyline(m_polyline);
39
40 }
41
42 QRectF XYLineChartItem::boundingRect() const
43 {
44 return m_polyline.boundingRect();
61 45 }
62 46
63 painter->setClipRect(m_rect.adjusted(+1, +1, -1, -1));
47
48 void XYLineChartItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,QWidget *widget)
49 {
50 painter->setClipRect(m_xyPlotData.m_viewportRect.adjusted(+1, +1, -1, -1));
64 51 painter->setPen(m_series->color());
65 52 painter->drawPolyline(m_polyline);
66 53
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@@ -3,7 +3,7
3 3
4 4 #include "qchartconfig.h"
5 5 #include "qchart.h"
6 #include "xyplotdata_p.h"
6 #include "xyplotdomain_p.h"
7 7
8 8 QCHART_BEGIN_NAMESPACE
9 9
@@ -20,16 +20,12 public:
20 20 virtual QRectF boundingRect() const;
21 21 virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
22 22
23 //TODO: this is just temporary interface
24 void setChartSize(const QRectF& size);
25 void setXYPlotData(const XYPlotData& data);
23 void updateXYPlotData(const XYPlotDomain& data);
26 24
27 25 private:
28 QRectF m_rect;
29 26 QPolygonF m_polyline;
30 27 QXYChartSeries* m_series;
31 XYPlotData m_xyPlotData;
32 bool m_dirtyGeometry;
28 XYPlotDomain m_xyPlotData;
33 29 };
34 30
35 31 QCHART_END_NAMESPACE
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@@ -1,24 +1,30
1 #include "xyplotdata_p.h"
1 #include "xyplotdomain_p.h"
2 2
3 3 QCHART_BEGIN_NAMESPACE
4 4
5 XYPlotData::XYPlotData()
5 XYPlotDomain::XYPlotDomain():
6 m_ticksX(0),
7 m_ticksY(0),
8 m_minX(0),
9 m_maxX(0),
10 m_minY(0),
11 m_maxY(0)
6 12 {
7 13
8 14 }
9 15
10 XYPlotData::~XYPlotData()
16 XYPlotDomain::~XYPlotDomain()
11 17 {
12 18 // TODO Auto-generated destructor stub
13 19 }
14 20
15 qreal XYPlotData::spanX() const
21 qreal XYPlotDomain::spanX() const
16 22 {
17 23 Q_ASSERT(m_maxX >= m_minX);
18 24 return m_maxX - m_minX;
19 25 }
20 26
21 qreal XYPlotData::spanY() const
27 qreal XYPlotDomain::spanY() const
22 28 {
23 29 Q_ASSERT(m_maxY >= m_minY);
24 30 return m_maxY - m_minY;
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@@ -1,14 +1,14
1 #ifndef PLOTTER_H_
2 #define PLOTTER_H_
1 #ifndef PLOTDOMAIN_H_
2 #define PLOTDOMAIN_H_
3 3 #include "qchartconfig.h"
4 #include <QtGlobal>
4 #include <QRect>
5 5
6 6 QCHART_BEGIN_NAMESPACE
7 7
8 class XYPlotData {
8 class XYPlotDomain {
9 9 public:
10 XYPlotData();
11 virtual ~XYPlotData();
10 XYPlotDomain();
11 virtual ~XYPlotDomain();
12 12
13 13 qreal spanX() const;
14 14 qreal spanY() const;
@@ -22,8 +22,7 public:
22 22 qreal m_maxX;
23 23 qreal m_minY;
24 24 qreal m_maxY;
25
26
25 QRect m_viewportRect;
27 26 };
28 27
29 28 QCHART_END_NAMESPACE
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