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GX - Graphics Library

Defines

Typedefs

Functions

Detailed Description

Please refer to the following image to understand graphic coordinates:
qvgaCoords.png

Define Documentation

#define ________   0x00
 

From a graphics to number ...

#define _______X   0x01
 

#define ______X_   0x02
 

#define ______XX   0x03
 

#define _____X__   0x04
 

#define _____X_X   0x05
 

#define _____XX_   0x06
 

#define _____XXX   0x07
 

#define ____X___   0x08
 

#define ____X__X   0x09
 

#define ____X_X_   0x0a
 

#define ____X_XX   0x0b
 

#define ____XX__   0x0c
 

#define ____XX_X   0x0d
 

#define ____XXX_   0x0e
 

#define ____XXXX   0x0f
 

#define ___X____   0x10
 

#define ___X___X   0x11
 

#define ___X__X_   0x12
 

#define ___X__XX   0x13
 

#define ___X_X__   0x14
 

#define ___X_X_X   0x15
 

#define ___X_XX_   0x16
 

#define ___X_XXX   0x17
 

#define ___XX___   0x18
 

#define ___XX__X   0x19
 

#define ___XX_X_   0x1a
 

#define ___XX_XX   0x1b
 

#define ___XXX__   0x1c
 

#define ___XXX_X   0x1d
 

#define ___XXXX_   0x1e
 

#define ___XXXXX   0x1f
 

#define __X_____   0x20
 

#define __X____X   0x21
 

#define __X___X_   0x22
 

#define __X___XX   0x23
 

#define __X__X__   0x24
 

#define __X__X_X   0x25
 

#define __X__XX_   0x26
 

#define __X__XXX   0x27
 

#define __X_X___   0x28
 

#define __X_X__X   0x29
 

#define __X_X_X_   0x2a
 

#define __X_X_XX   0x2b
 

#define __X_XX__   0x2c
 

#define __X_XX_X   0x2d
 

#define __X_XXX_   0x2e
 

#define __X_XXXX   0x2f
 

#define __XX____   0x30
 

#define __XX___X   0x31
 

#define __XX__X_   0x32
 

#define __XX__XX   0x33
 

#define __XX_X__   0x34
 

#define __XX_X_X   0x35
 

#define __XX_XX_   0x36
 

#define __XX_XXX   0x37
 

#define __XXX___   0x38
 

#define __XXX__X   0x39
 

#define __XXX_X_   0x3a
 

#define __XXX_XX   0x3b
 

#define __XXXX__   0x3c
 

#define __XXXX_X   0x3d
 

#define __XXXXX_   0x3e
 

#define __XXXXXX   0x3f
 

#define _X______   0x40
 

#define _X_____X   0x41
 

#define _X____X_   0x42
 

#define _X____XX   0x43
 

#define _X___X__   0x44
 

#define _X___X_X   0x45
 

#define _X___XX_   0x46
 

#define _X___XXX   0x47
 

#define _X__X___   0x48
 

#define _X__X__X   0x49
 

#define _X__X_X_   0x4a
 

#define _X__X_XX   0x4b
 

#define _X__XX__   0x4c
 

#define _X__XX_X   0x4d
 

#define _X__XXX_   0x4e
 

#define _X__XXXX   0x4f
 

#define _X_X____   0x50
 

#define _X_X___X   0x51
 

#define _X_X__X_   0x52
 

#define _X_X__XX   0x53
 

#define _X_X_X__   0x54
 

#define _X_X_X_X   0x55
 

#define _X_X_XX_   0x56
 

#define _X_X_XXX   0x57
 

#define _X_XX___   0x58
 

#define _X_XX__X   0x59
 

#define _X_XX_X_   0x5a
 

#define _X_XX_XX   0x5b
 

#define _X_XXX__   0x5c
 

#define _X_XXX_X   0x5d
 

#define _X_XXXX_   0x5e
 

#define _X_XXXXX   0x5f
 

#define _XX_____   0x60
 

#define _XX____X   0x61
 

#define _XX___X_   0x62
 

#define _XX___XX   0x63
 

#define _XX__X__   0x64
 

#define _XX__X_X   0x65
 

#define _XX__XX_   0x66
 

#define _XX__XXX   0x67
 

#define _XX_X___   0x68
 

#define _XX_X__X   0x69
 

#define _XX_X_X_   0x6a
 

#define _XX_X_XX   0x6b
 

#define _XX_XX__   0x6c
 

#define _XX_XX_X   0x6d
 

#define _XX_XXX_   0x6e
 

#define _XX_XXXX   0x6f
 

#define _XXX____   0x70
 

#define _XXX___X   0x71
 

#define _XXX__X_   0x72
 

#define _XXX__XX   0x73
 

#define _XXX_X__   0x74
 

#define _XXX_X_X   0x75
 

#define _XXX_XX_   0x76
 

#define _XXX_XXX   0x77
 

#define _XXXX___   0x78
 

#define _XXXX__X   0x79
 

#define _XXXX_X_   0x7a
 

#define _XXXX_XX   0x7b
 

#define _XXXXX__   0x7c
 

#define _XXXXX_X   0x7d
 

#define _XXXXXX_   0x7e
 

#define _XXXXXXX   0x7f
 

#define HORIZ_DIRECTION   0x00
 

#define LANDSCAPE
 

#define MAPPED_X (  x,
y   )     (319 - (x))
 

#define MAPPED_Y (  x,
y   )     (239 - (y))
 

#define QVGA_DISPLAY_HEIGHT   240
 

Display height.

#define QVGA_DISPLAY_WIDTH   320
 

Display width.

#define SSD2119_ENTRY_MODE_DEFAULT   0x6830
 

#define SSD2119_ENTRY_MODE_SET (  x   )     ((SSD2119_ENTRY_MODE_DEFAULT & 0xFF00) | (x))
 

#define VERT_DIRECTION   0x08
 

#define X_______   0x80
 

#define X______X   0x81
 

#define X_____X_   0x82
 

#define X_____XX   0x83
 

#define X____X__   0x84
 

#define X____X_X   0x85
 

#define X____XX_   0x86
 

#define X____XXX   0x87
 

#define X___X___   0x88
 

#define X___X__X   0x89
 

#define X___X_X_   0x8a
 

#define X___X_XX   0x8b
 

#define X___XX__   0x8c
 

#define X___XX_X   0x8d
 

#define X___XXX_   0x8e
 

#define X___XXXX   0x8f
 

#define X__X____   0x90
 

#define X__X___X   0x91
 

#define X__X__X_   0x92
 

#define X__X__XX   0x93
 

#define X__X_X__   0x94
 

#define X__X_X_X   0x95
 

#define X__X_XX_   0x96
 

#define X__X_XXX   0x97
 

#define X__XX___   0x98
 

#define X__XX__X   0x99
 

#define X__XX_X_   0x9a
 

#define X__XX_XX   0x9b
 

#define X__XXX__   0x9c
 

#define X__XXX_X   0x9d
 

#define X__XXXX_   0x9e
 

#define X__XXXXX   0x9f
 

#define X_X_____   0xa0
 

#define X_X____X   0xa1
 

#define X_X___X_   0xa2
 

#define X_X___XX   0xa3
 

#define X_X__X__   0xa4
 

#define X_X__X_X   0xa5
 

#define X_X__XX_   0xa6
 

#define X_X__XXX   0xa7
 

#define X_X_X___   0xa8
 

#define X_X_X__X   0xa9
 

#define X_X_X_X_   0xaa
 

#define X_X_X_XX   0xab
 

#define X_X_XX__   0xac
 

#define X_X_XX_X   0xad
 

#define X_X_XXX_   0xae
 

#define X_X_XXXX   0xaf
 

#define X_XX____   0xb0
 

#define X_XX___X   0xb1
 

#define X_XX__X_   0xb2
 

#define X_XX__XX   0xb3
 

#define X_XX_X__   0xb4
 

#define X_XX_X_X   0xb5
 

#define X_XX_XX_   0xb6
 

#define X_XX_XXX   0xb7
 

#define X_XXX___   0xb8
 

#define X_XXX__X   0xb9
 

#define X_XXX_X_   0xba
 

#define X_XXX_XX   0xbb
 

#define X_XXXX__   0xbc
 

#define X_XXXX_X   0xbd
 

#define X_XXXXX_   0xbe
 

#define X_XXXXXX   0xbf
 

#define XX______   0xc0
 

#define XX_____X   0xc1
 

#define XX____X_   0xc2
 

#define XX____XX   0xc3
 

#define XX___X__   0xc4
 

#define XX___X_X   0xc5
 

#define XX___XX_   0xc6
 

#define XX___XXX   0xc7
 

#define XX__X___   0xc8
 

#define XX__X__X   0xc9
 

#define XX__X_X_   0xca
 

#define XX__X_XX   0xcb
 

#define XX__XX__   0xcc
 

#define XX__XX_X   0xcd
 

#define XX__XXX_   0xce
 

#define XX__XXXX   0xcf
 

#define XX_X____   0xd0
 

#define XX_X___X   0xd1
 

#define XX_X__X_   0xd2
 

#define XX_X__XX   0xd3
 

#define XX_X_X__   0xd4
 

#define XX_X_X_X   0xd5
 

#define XX_X_XX_   0xd6
 

#define XX_X_XXX   0xd7
 

#define XX_XX___   0xd8
 

#define XX_XX__X   0xd9
 

#define XX_XX_X_   0xda
 

#define XX_XX_XX   0xdb
 

#define XX_XXX__   0xdc
 

#define XX_XXX_X   0xdd
 

#define XX_XXXX_   0xde
 

#define XX_XXXXX   0xdf
 

#define XXX_____   0xe0
 

#define XXX____X   0xe1
 

#define XXX___X_   0xe2
 

#define XXX___XX   0xe3
 

#define XXX__X__   0xe4
 

#define XXX__X_X   0xe5
 

#define XXX__XX_   0xe6
 

#define XXX__XXX   0xe7
 

#define XXX_X___   0xe8
 

#define XXX_X__X   0xe9
 

#define XXX_X_X_   0xea
 

#define XXX_X_XX   0xeb
 

#define XXX_XX__   0xec
 

#define XXX_XX_X   0xed
 

#define XXX_XXX_   0xee
 

#define XXX_XXXX   0xef
 

#define XXXX____   0xf0
 

#define XXXX___X   0xf1
 

#define XXXX__X_   0xf2
 

#define XXXX__XX   0xf3
 

#define XXXX_X__   0xf4
 

#define XXXX_X_X   0xf5
 

#define XXXX_XX_   0xf6
 

#define XXXX_XXX   0xf7
 

#define XXXXX___   0xf8
 

#define XXXXX__X   0xf9
 

#define XXXXX_X_   0xfa
 

#define XXXXX_XX   0xfb
 

#define XXXXXX__   0xfc
 

#define XXXXXX_X   0xfd
 

#define XXXXXXX_   0xfe
 

#define XXXXXXXX   0xff
 

Typedef Documentation

typedef unsigned short gCOL
 

Color data type.

typedef unsigned short gInt
 

Graphics integer data type.

Function Documentation

void gxCircle (  gInt  x0,
gInt  y0,
gInt  r,
gCOL  color
) 
 

Draw a circle at specified coordinates.

Parameters:
x0 Horizontal coordinates of the center of circle.
y0 Vertical coordinates of the center of circle.
r Ray of circle.
color Pixel color see: QVGA Color Definitions

void gxCircleDashed (  gInt  x0,
gInt  y0,
gInt  r,
gInt  modulo,
gCOL  color
) 
 

Draw a dashed circle at specified coordinates.

Parameters:
x0 Horizontal coordinates of the center of circle.
y0 Vertical coordinates of the center of circle.
r Ray of circle.
modulo Number of pixel for dashed circle.
color Pixel color see: QVGA Color Definitions

void gxClear (  gCOL  color  ) 
 

Clear the display with specified color.

Parameters:
color Clear color see: QVGA Color Definitions

gxFontColorSize (  gCOL  foreground,
gCOL  background,
gInt  xs,
gInt  ys
) 
 

Set font size and color.

Parameters:
foreground Foreground color see: QVGA Color Definitions
background Background color see: QVGA Color Definitions
xs Horizontal multiplier for standard font (7x5).
ys Vertical multiplier for standard font (7x5).
See also:
gxPutChar, gxPutString

void gxLine (  gInt  x0,
gInt  y0,
gInt  x1,
gInt  y1,
gCOL  color
) 
 

Draw a line at specified coordinates.

Parameters:
x0 Top-Left horizontal coordinates.
y0 Top-Left vertical coordinates.
x1 Bottom-Right horizontal coordinates.
y1 Bottom-Right vertical coordinates.
color Pixel color see: QVGA Color Definitions

void gxLineDashed (  gInt  x0,
gInt  y0,
gInt  x1,
gInt  y1,
gInt  modulo,
gCOL  color
) 
 

Draw a dashed line at specified coordinates.

Parameters:
x0 Top-Left horizontal coordinates.
y0 Top-Left vertical coordinates.
x1 Bottom-Right horizontal coordinates.
y1 Bottom-Right vertical coordinates.
modulo Number of pixel for dashed line.
color Pixel color see: QVGA Color Definitions

void gxMovePen (  gInt  x,
gInt  y
) 
 

Move graphics pen.

Parameters:
x Horizontal coordinates.
y Vertical coordinates.

void gxPicture (  gInt  sX,
gInt  sY,
gInt  sizeX,
gInt  sizeY,
gCOL *  bitMap
) 
 

Draw a picture on the screen.

Parameters:
x0 Top-Left horizontal coordinates.
y0 Top-Left vertical coordinates.
sizeX Width of the picture.
sizeY Height of the picture.
bitMap Picture data.
color Pixel color see: QVGA Color Definitions

void gxPutChar (  gInt  x,
gInt  y,
unsigned char  ch
) 
 

Draw a character at the specified coordinates.

Parameters:
x Top-Left horizontal coordinates.
y Top-Left vertical coordinates.
ch Character.
See also:
gxFontColorSize

void gxPutString (  gInt  x,
gInt  y,
const char *  pStr
) 
 

Draw a C string at the specified coordinates.

Parameters:
x Top-Left horizontal coordinates.
y Top-Left vertical coordinates.
pStr C string.
See also:
gxFontColorSize, gxStringSize 
        gxFontColorSize(TFT_YELLOW, TFT_BLACK, 1, 1);
        gxPutString(5, 10, "Hello world!");

void gxRect (  gInt  x0,
gInt  y0,
gInt  x1,
gInt  y1,
gCOL  color
) 
 

Draw a rectangle at specified coordinates. See:.

rectCoords.png
Parameters:
x0 Top-Left horizontal coordinates.
y0 Top-Left vertical coordinates.
x1 Bottom-Right horizontal coordinates.
y1 Bottom-Right vertical coordinates.
color Pixel color see: QVGA Color Definitions

void gxRectDashed (  gInt  x0,
gInt  y0,
gInt  x1,
gInt  y1,
gInt  modulo,
gCOL  color
) 
 

Draw a dashed rectangle at specified coordinates.

Parameters:
x0 Top-Left horizontal coordinates.
y0 Top-Left vertical coordinates.
x1 Bottom-Right horizontal coordinates.
y1 Bottom-Right vertical coordinates.
modulo Number of pixel for dashed line.
color Pixel color see: QVGA Color Definitions

void gxRectFilled (  gInt  x0,
gInt  y0,
gInt  x1,
gInt  y1,
gCOL  color
) 
 

Draw a filled rectangle at specified coordinates.

Parameters:
x0 Top-Left horizontal coordinates.
y0 Top-Left vertical coordinates.
x1 Bottom-Right horizontal coordinates.
y1 Bottom-Right vertical coordinates.
color Pixel color see: QVGA Color Definitions

void gxSetPixel (  gInt  x,
gInt  y,
gCOL  color
) 
 

Set a pixel at specified coordinates.

Parameters:
x Horizontal coordinates.
y Vertical coordinates.
color Pixel color see: QVGA Color Definitions

void gxStringSize (  const char *  txt,
int *  xsize,
int *  ysize
) 
 

Calculate the string dimension in pixel.

Parameters:
txt C string.
xsize Return the width of the string in pixel.
ysize Return the height of the string in pixel.
See also:
gxFontColorSize, gxPutString

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