ViSP  2.8.0
vpGDIRenderer.h
1 /****************************************************************************
2  *
3  * $Id: vpGDIRenderer.h 4056 2013-01-05 13:04:42Z fspindle $
4  *
5  * This file is part of the ViSP software.
6  * Copyright (C) 2005 - 2013 by INRIA. All rights reserved.
7  *
8  * This software is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License
10  * ("GPL") version 2 as published by the Free Software Foundation.
11  * See the file LICENSE.txt at the root directory of this source
12  * distribution for additional information about the GNU GPL.
13  *
14  * For using ViSP with software that can not be combined with the GNU
15  * GPL, please contact INRIA about acquiring a ViSP Professional
16  * Edition License.
17  *
18  * See http://www.irisa.fr/lagadic/visp/visp.html for more information.
19  *
20  * This software was developed at:
21  * INRIA Rennes - Bretagne Atlantique
22  * Campus Universitaire de Beaulieu
23  * 35042 Rennes Cedex
24  * France
25  * http://www.irisa.fr/lagadic
26  *
27  * If you have questions regarding the use of this file, please contact
28  * INRIA at visp@inria.fr
29  *
30  * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
31  * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
32  *
33  *
34  * Description:
35  * GDI renderer for windows 32 display
36  *
37  * Authors:
38  * Bruno Renier
39  *
40  *****************************************************************************/
41 
42 #include <visp/vpConfig.h>
43 
44 #if ( defined(VISP_HAVE_GDI) )
45 #ifndef vpGDIRenderer_HH
46 #define vpGDIRenderer_HH
47 
48 
49 #ifndef DOXYGEN_SHOULD_SKIP_THIS
50 
51 #include <windows.h>
52 
53 #include <visp/vpWin32Renderer.h>
54 #include <visp/vpImage.h>
55 #include <visp/vpRGBa.h>
56 #include <visp/vpDisplayException.h>
57 
58 #include <visp/vpMath.h>
59 
60 class VISP_EXPORT vpGDIRenderer : public vpWin32Renderer
61 {
62  //the handle of the associated window
63  HWND hWnd;
64 
65  //the bitmap object to display
66  HBITMAP bmp;
67 
68  //colors for overlay
69  COLORREF colors[vpColor::id_unknown];
70 
71  //font used to draw text
72  HFONT hFont;
73 
74  //used to ensure that only one thread at a time is accessing bmp
75  CRITICAL_SECTION CriticalSection;
76 
77  public:
78  double timelost;
79  vpGDIRenderer();
80  virtual ~vpGDIRenderer();
81 
82  bool init(HWND hWnd, unsigned int width, unsigned int height);
83 
84  bool render();
85 
86  // gets the image's width.
87  unsigned int getImageWidth(){ return nbCols; }
88 
89  // gets the image's height.
90  unsigned int getImageHeight(){ return nbRows; }
91 
92  void setImg(const vpImage<vpRGBa>& I);
93  void setImg(const vpImage<unsigned char>& I);
94  void setImgROI(const vpImage<vpRGBa>& I, const vpImagePoint &iP, const unsigned int width, const unsigned int height );
95  void setImgROI(const vpImage<unsigned char>& I, const vpImagePoint &iP, const unsigned int width, const unsigned int height );
96 
97  void setPixel(const vpImagePoint &iP, const vpColor &color);
98 
99  void drawLine(const vpImagePoint &ip1,
100  const vpImagePoint &ip2,
101  const vpColor &color, unsigned int thickness, int style=PS_SOLID);
102 
103  void drawRect(const vpImagePoint &topLeft,
104  unsigned int width, unsigned int height,
105  const vpColor &color, bool fill=false,
106  unsigned int thickness=1);
107 
108  void clear(const vpColor &color);
109 
110  void drawCircle(const vpImagePoint &center, unsigned int radius,
111  const vpColor &color, bool fill=false, unsigned int thickness=1);
112 
113  void drawText(const vpImagePoint &ip, const char * text,
114  const vpColor &color);
115 
116  void drawCross(const vpImagePoint &ip, unsigned int size,
117  const vpColor &color, unsigned int thickness=1);
118 
119  void drawArrow(const vpImagePoint &ip1,
120  const vpImagePoint &ip2,
121  const vpColor &color, unsigned int w,unsigned int h, unsigned int thickness=1);
122 
123  void getImage(vpImage<vpRGBa> &I);
124 
125  private:
126 
127  //updates the renderer hbitmaps.
128  bool updateBitmap(HBITMAP& hBmp, unsigned char * imBuffer,
129  unsigned int w, unsigned int h);
130  //updates the renderer hbitmaps.
131  bool updateBitmapROI(unsigned char * imBuffer, const vpImagePoint &iP,
132  unsigned int w, unsigned int h);
133 
134 
135  //converts a vpImage<vpRGBa> into a HBITMAP .
136  void convert(const vpImage<vpRGBa> &I, HBITMAP& hBmp);
137 
138  //converst a vpImage<unsigned char> into a HBITMAP .
139  void convert(const vpImage<unsigned char> &I, HBITMAP& hBmp);
140 
141  //converts a vpImage<vpRGBa> into a HBITMAP .
142  void convertROI(const vpImage<vpRGBa> &I, const vpImagePoint &iP, const unsigned int width, const unsigned int height);
143 
144  //converst a vpImage<unsigned char> into a HBITMAP .
145  void convertROI(const vpImage<unsigned char> &I, const vpImagePoint &iP, const unsigned int width, const unsigned int height);
146 
147 };
148 #endif
149 #endif
150 #endif
Class to define colors available for display functionnalities.
Definition: vpColor.h:125
Class that defines a 2D point in an image. This class is useful for image processing and stores only ...
Definition: vpImagePoint.h:92