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painter.h
1 /***************************************************************************
2 ** **
3 ** QCustomPlot, an easy to use, modern plotting widget for Qt **
4 ** Copyright (C) 2011, 2012, 2013, 2014 Emanuel Eichhammer **
5 ** **
6 ** This program is free software: you can redistribute it and/or modify **
7 ** it under the terms of the GNU General Public License as published by **
8 ** the Free Software Foundation, either version 3 of the License, or **
9 ** (at your option) any later version. **
10 ** **
11 ** This program is distributed in the hope that it will be useful, **
12 ** but WITHOUT ANY WARRANTY; without even the implied warranty of **
13 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
14 ** GNU General Public License for more details. **
15 ** **
16 ** You should have received a copy of the GNU General Public License **
17 ** along with this program. If not, see http://www.gnu.org/licenses/. **
18 ** **
19 ****************************************************************************
20 ** Author: Emanuel Eichhammer **
21 ** Website/Contact: http://www.qcustomplot.com/ **
22 ** Date: 07.04.14 **
23 ** Version: 1.2.1 **
24 ****************************************************************************/
25 
26 #ifndef QCP_PAINTER_H
27 #define QCP_PAINTER_H
28 
29 #include "global.h"
30 
31 class QCPPainter;
32 
33 class QCP_LIB_DECL QCPScatterStyle
34 {
35  Q_GADGET
36 public:
44  Q_ENUMS(ScatterShape)
45  enum ScatterShape { ssNone
46  ,ssDot
47  ,ssCross
48  ,ssPlus
49  ,ssCircle
50  ,ssDisc
51  ,ssSquare
52  ,ssDiamond
53  ,ssStar
54  ,ssTriangle
55  ,ssTriangleInverted
56  ,ssCrossSquare
57  ,ssPlusSquare
58  ,ssCrossCircle
59  ,ssPlusCircle
60  ,ssPeace
61  ,ssPixmap
62  ,ssCustom
63  };
64 
65  QCPScatterStyle();
66  QCPScatterStyle(ScatterShape shape, double size=6);
67  QCPScatterStyle(ScatterShape shape, const QColor &color, double size);
68  QCPScatterStyle(ScatterShape shape, const QColor &color, const QColor &fill, double size);
69  QCPScatterStyle(ScatterShape shape, const QPen &pen, const QBrush &brush, double size);
70  QCPScatterStyle(const QPixmap &pixmap);
71  QCPScatterStyle(const QPainterPath &customPath, const QPen &pen, const QBrush &brush=Qt::NoBrush, double size=6);
72 
73  // getters:
74  double size() const { return mSize; }
75  ScatterShape shape() const { return mShape; }
76  QPen pen() const { return mPen; }
77  QBrush brush() const { return mBrush; }
78  QPixmap pixmap() const { return mPixmap; }
79  QPainterPath customPath() const { return mCustomPath; }
80 
81  // setters:
82  void setSize(double size);
83  void setShape(ScatterShape shape);
84  void setPen(const QPen &pen);
85  void setBrush(const QBrush &brush);
86  void setPixmap(const QPixmap &pixmap);
87  void setCustomPath(const QPainterPath &customPath);
88 
89  // non-property methods:
90  bool isNone() const { return mShape == ssNone; }
91  bool isPenDefined() const { return mPenDefined; }
92  void applyTo(QCPPainter *painter, const QPen &defaultPen) const;
93  void drawShape(QCPPainter *painter, QPointF pos) const;
94  void drawShape(QCPPainter *painter, double x, double y) const;
95 
96 protected:
97  // property members:
98  double mSize;
99  ScatterShape mShape;
100  QPen mPen;
101  QBrush mBrush;
102  QPixmap mPixmap;
103  QPainterPath mCustomPath;
104 
105  // non-property members:
106  bool mPenDefined;
107 };
108 Q_DECLARE_TYPEINFO(QCPScatterStyle, Q_MOVABLE_TYPE);
109 
110 
111 class QCP_LIB_DECL QCPPainter : public QPainter
112 {
113  Q_GADGET
114 public:
119  enum PainterMode { pmDefault = 0x00
120  ,pmVectorized = 0x01
121  ,pmNoCaching = 0x02
122  ,pmNonCosmetic = 0x04
123  };
124  Q_FLAGS(PainterMode PainterModes)
125  Q_DECLARE_FLAGS(PainterModes, PainterMode)
126 
127  QCPPainter();
128  QCPPainter(QPaintDevice *device);
129  ~QCPPainter();
130 
131  // getters:
132  bool antialiasing() const { return testRenderHint(QPainter::Antialiasing); }
133  PainterModes modes() const { return mModes; }
134 
135  // setters:
136  void setAntialiasing(bool enabled);
137  void setMode(PainterMode mode, bool enabled=true);
138  void setModes(PainterModes modes);
139 
140  // methods hiding non-virtual base class functions (QPainter bug workarounds):
141  bool begin(QPaintDevice *device);
142  void setPen(const QPen &pen);
143  void setPen(const QColor &color);
144  void setPen(Qt::PenStyle penStyle);
145  void drawLine(const QLineF &line);
146  void drawLine(const QPointF &p1, const QPointF &p2) {drawLine(QLineF(p1, p2));}
147  void save();
148  void restore();
149 
150  // non-virtual methods:
151  void makeNonCosmetic();
152 
153 protected:
154  // property members:
155  PainterModes mModes;
156  bool mIsAntialiasing;
157 
158  // non-property members:
159  QStack<bool> mAntialiasingStack;
160 };
161 Q_DECLARE_OPERATORS_FOR_FLAGS(QCPPainter::PainterModes)
162 
163 #endif // QCP_PAINTER_H
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