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Web/GifCanvas/src/drawimage.h
1/*NB_REVISION*/
2
3/*NB_COPYRIGHT*/
4
5/* This file contains a simple class for drawing Graphics into a GIF image */
6
7#ifndef _DRAWIMAGE_H_
8#define _DRAWIMAGE_H_
9
10#include <basictypes.h>
11
12#include "gifCompress.h"
13
14class GitCompress;
15
16class DrawImageObject
17{
18 uint8_t *m_pImageBuffer = nullptr;
19 uint8_t *m_pColorArray = nullptr;
20
21 int m_xSize = 0;
22 int m_ySize = 0;
23 int m_nColors = 0;
24
25 int m_curx = 0;
26 int m_cury = 0;
27
28 bool m_trans = false;
29 uint8_t m_transIndex = 0;
30
31 GitCompress m_gitCompress;
32
33 friend class GitCompress;
34
35 private:
36 int GIFNextPixel();
37 void compress(int init_bits, int fd);
38
39 public:
40 /* You must specify the size and color depth of the GIF object in the constructor */
41 DrawImageObject(int x, int y, int ncolors, bool transparent, uint8_t transIndex);
42 ~DrawImageObject();
43
44 /* Set a specific pixel to a specific color */
45 void PutPixel(int x, int y, uint8_t color);
46
47 /* Get the color of a specific pixel */
48 uint8_t GetPixel(int x, int y);
49
50 /* All colors are index based. You must define the color for each index */
51 void SetColor(uint8_t index, uint8_t red, uint8_t green, uint8_t blue);
52
53 /* Draw a line */
54 void Line(int x1, int y1, int x2, int y2, uint8_t colorindex);
55
56 /* Draw a box */
57 void Box(int x1, int y1, int x2, int y2, uint8_t colorindex);
58
59 /* Draw a filled box */
60 void FilledBox(int x1, int y1, int x2, int y2, uint8_t fillc, uint8_t outlinec);
61
62 /* Draw text */
63 void Text(const char *pText, int x1, int x2, const char *fontrecord, uint8_t color);
64 int TextXsize(const char *pText, const char *fontrecord);
65 int TextYsize(const char *pText, const char *fontrecord);
66
67 /* After you have done all of your drawing you must call this function to send the GIF */
68 void WriteGIF(int fd);
69};
70
71extern const char GiantFont[];
72extern const char LargeFont[];
73extern const char MediumFont[];
74extern const char SmallFont[];
75extern const char TinyFont[];
76
77#endif /* _DRAWIMAGE_H_ */