Chemical Data Processing Library C++ API - Version 1.1.1
QtRenderer2D.hpp
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1 /*
2  * QtRenderer2D.hpp
3  *
4  * This file is part of the Chemical Data Processing Toolkit
5  *
6  * Copyright (C) 2003 Thomas Seidel <thomas.seidel@univie.ac.at>
7  *
8  * This library is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2 of the License, or (at your option) any later version.
12  *
13  * This library is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public License
19  * along with this library; see the file COPYING. If not, write to
20  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21  * Boston, MA 02111-1307, USA.
22  */
23 
29 #ifndef CDPL_VIS_QTRENDERER2D_HPP
30 #define CDPL_VIS_QTRENDERER2D_HPP
31 
32 #include <memory>
33 
34 #include "CDPL/Vis/APIPrefix.hpp"
35 #include "CDPL/Vis/Renderer2D.hpp"
36 
37 
38 class QPainter;
39 class QPolygonF;
40 class QPainterPath;
41 
42 
43 namespace CDPL
44 {
45 
46  namespace Vis
47  {
48 
57  {
58 
59  public:
64  QtRenderer2D(QPainter& painter);
65 
70 
71  void saveState();
72  void restoreState();
73 
74  void setTransform(const Math::Matrix3D& xform);
75  void transform(const Math::Matrix3D& xform);
76 
77  void setPen(const Pen& pen);
78  void setBrush(const Brush& brush);
79  void setFont(const Font& font);
80 
81  void drawRectangle(double x1, double y1, double x2, double y2);
82  void drawPolygon(const Math::Vector2DArray& points);
83  void drawLine(double x1, double y1, double x2, double y2);
84  void drawPolyline(const Math::Vector2DArray& points);
86  void drawPoint(double x, double y);
87  void drawText(double x, double y, const std::string& txt);
88  void drawEllipse(double x, double y, double width, double height);
89  void drawPath(const Path2D& path);
90 
91  void setClipPath(const Path2D& path);
92  void clearClipPath();
93 
94  private:
95  QtRenderer2D(const QtRenderer2D&);
96 
97  QtRenderer2D& operator=(const QtRenderer2D&);
98 
99  void convertToQPolygon(const Math::Vector2DArray&);
100 
101  QPainter& qPainter;
102  std::unique_ptr<QPolygonF> qPolygon;
103  std::unique_ptr<QPainterPath> qPainterPath;
104  };
105  } // namespace Vis
106 } // namespace CDPL
107 
108 #endif // CDPL_VIS_QTRENDERER2D_HPP
CDPL::Vis::Renderer2D
An interface that provides methods for low level 2D drawing operations.
Definition: Renderer2D.hpp:86
CDPL::Vis::QtRenderer2D::drawPath
void drawPath(const Path2D &path)
Draws the given path.
CDPL::Vis::QtRenderer2D::restoreState
void restoreState()
Restores the last renderer state saved by a call to saveState().
CDPL::Vis::QtRenderer2D::drawLineSegments
void drawLineSegments(const Math::Vector2DArray &points)
Draws the sequence of disjoint line segments defined by points.
CDPL::Vis::Pen
Specifies how to draw lines and outlines of shapes.
Definition: Pen.hpp:53
CDPL::Vis::QtRenderer2D::setFont
void setFont(const Font &font)
Sets the font to be used in subsequent text drawing operations.
CDPL::Vis::QtRenderer2D::drawText
void drawText(double x, double y, const std::string &txt)
Draws the specified text at the position (x, y).
CDPL::Vis::Font
Specifies a font for drawing text.
Definition: Font.hpp:54
CDPL::Vis::Path2D
Provides a container for painting operations, enabling arbitrary graphical shapes to be constructed a...
Definition: Path2D.hpp:78
CDPL::Vis::QtRenderer2D::drawEllipse
void drawEllipse(double x, double y, double width, double height)
Draws an ellipse with the given width and height around the center position (x, y).
CDPL::Vis::QtRenderer2D::setTransform
void setTransform(const Math::Matrix3D &xform)
Sets the applied affine transformation matrix to xform.
CDPL::Vis::QtRenderer2D::drawRectangle
void drawRectangle(double x1, double y1, double x2, double y2)
Draws an axis aligned rectangle of the specified width and height whose upper-left corner is located ...
CDPL::Math::Matrix3D
CMatrix< double, 3, 3 > Matrix3D
A bounded 3x3 matrix holding floating point values of type double.
Definition: Matrix.hpp:1849
Renderer2D.hpp
Definition of the class CDPL::Vis::Renderer2D.
CDPL::Vis::QtRenderer2D::clearClipPath
void clearClipPath()
Disables clipping.
CDPL::Vis::QtRenderer2D::setPen
void setPen(const Pen &pen)
Sets the pen to be used in subsequent drawing operations.
CDPL
The namespace of the Chemical Data Processing Library.
CDPL::Vis::QtRenderer2D::setBrush
void setBrush(const Brush &brush)
Sets the brush to be used in subsequent drawing operations.
CDPL::Vis::QtRenderer2D::~QtRenderer2D
~QtRenderer2D()
Destructor.
CDPL::Vis::QtRenderer2D::transform
void transform(const Math::Matrix3D &xform)
Multiplies the current affine transformation matrix by xform.
CDPL::Vis::QtRenderer2D::drawLine
void drawLine(double x1, double y1, double x2, double y2)
Draws a line segment from (x1, y1) to (x2, y2).
CDPL::Vis::Brush
Specifies the fill pattern and fill color of shapes.
Definition: Brush.hpp:50
CDPL::Vis::QtRenderer2D::drawPoint
void drawPoint(double x, double y)
Draws a point at the position (x, y).
CDPL::Vis::QtRenderer2D::drawPolygon
void drawPolygon(const Math::Vector2DArray &points)
Draws the polygon defined by points.
CDPL::Math::Vector2DArray
VectorArray< Vector2D > Vector2DArray
An array of Math::Vector2D objects.
Definition: VectorArray.hpp:79
CDPL_VIS_QT_API
#define CDPL_VIS_QT_API
Tells the compiler/linker which classes, functions and variables are part of the library API.
APIPrefix.hpp
Definition of the preprocessor macro CDPL_VIS_API.
CDPL::Vis::QtRenderer2D::saveState
void saveState()
Saves the current renderer state.
CDPL::Vis::QtRenderer2D::drawPolyline
void drawPolyline(const Math::Vector2DArray &points)
Draws the polyline defined by points.
CDPL::Vis::QtRenderer2D::QtRenderer2D
QtRenderer2D(QPainter &painter)
Constructs a renderer object which uses the QPainter instance painter for its drawing operations.
CDPL::Vis::QtRenderer2D
Implements the Renderer2D interface on top of the Qt Toolkit.
Definition: QtRenderer2D.hpp:57
CDPL::Vis::QtRenderer2D::setClipPath
void setClipPath(const Path2D &path)