General graphics tool
Graphic Class Reference
Display control class, based on sDisplay and TextDisplay. More...
#include <Graphic.h>
Public Member Functions | |
Graphic (uint8_t *buf, int w, int h, int bits=1) | |
Constructor. | |
void | color (int foreground, int background) |
Set color. | |
void | clear () |
Clear the display. | |
void | pixel (int x, int y, unsigned int color) |
set or reset a single pixel | |
void | line (int x0, int y0, int x1, int y1) |
draw a 1 pixel line | |
void | rect (int x0, int y0, int x1, int y1) |
draw a rect | |
void | fillrect (int x0, int y0, int x1, int y1) |
draw a filled rect | |
void | circle (int x0, int y0, int r) |
draw a circle | |
void | fillcircle (int x0, int y0, int r) |
draw a filled circle | |
void | locate (int x, int y) |
setup cursor position | |
int | columns () |
calculate the max number of char in a line | |
int | rows () |
calculate the max number of columns | |
void | putc (int value) |
put a char on the screen | |
void | print (const char *str) |
print a string on the screen | |
void | font (const unsigned char *f) |
select the font to use | |
void | print_bm (Bitmap bm, int x, int y) |
print bitmap to buffer |
Detailed Description
Display control class, based on sDisplay and TextDisplay.
Example with pinning for KL25Z:
#include "mbed.h" #include "Graphic.h" #include "Arial28x28.h" #include "Arial12x12.h" #include "font_big.h" #include "s.h" // the E-Paper board from embedded artists has a LM75 temp sensor to compensate the temperature effect. If it is cold the display reacts slower. // The LM75 need a I2C -> 2 pins : sda and scl // The display data is written via SPI -> 3 pins : mosi,miso,sck // There are also some control signals // The pwm pin has to be connected to a PWM enabled pin : pwm // The other signals are connected to normal IO`s // Graphic epaper(PTD7, // PWR_CTRL PTD6, // BORDER PTE31, // DISCHARGE PTA17, // RESET_DISP PTA16, // BUSY PTC17, // SSEL PTD4, // PWM PTD2,PTD3,PTD1, // MOSI,MISO,SCLK PTE0,PTE1); // SDA,SCL int main() { epaper.cls(); // clear screen epaper.set_font((unsigned char*) Arial28x28); // select the font epaper.locate(5,20); // set cursor epaper.printf("Hello Mbed"); // print text epaper.rect(3,15,150,50,1); // draw frame epaper.write_disp(); // update screen
Definition at line 78 of file Graphic.h.
Constructor & Destructor Documentation
Graphic | ( | uint8_t * | buf, |
int | w, | ||
int | h, | ||
int | bits = 1 |
||
) |
Constructor.
Definition at line 7 of file Graphic.cpp.
Member Function Documentation
void circle | ( | int | x0, |
int | y0, | ||
int | r | ||
) |
void clear | ( | ) |
Clear the display.
Definition at line 14 of file Graphic.cpp.
void color | ( | int | foreground, |
int | background | ||
) |
Set color.
Definition at line 20 of file Graphic.cpp.
int columns | ( | ) |
calculate the max number of char in a line
- Returns:
- max columns depends on actual font size
Definition at line 193 of file Graphic.cpp.
void fillcircle | ( | int | x0, |
int | y0, | ||
int | r | ||
) |
void fillrect | ( | int | x0, |
int | y0, | ||
int | x1, | ||
int | y1 | ||
) |
draw a filled rect
- Parameters:
-
x0,y0 top left corner x1,y1 down right corner
Definition at line 128 of file Graphic.cpp.
void font | ( | const unsigned char * | f ) |
select the font to use
- Parameters:
-
f pointer to font array
font array can created with GLCD Font Creator from http://www.mikroe.com you have to add 4 parameter at the beginning of the font array to use:
- the number of byte / char
- the vertial size in pixel
- the horizontal size in pixel
- the number of byte per vertical line you also have to change the array to char[]
Definition at line 252 of file Graphic.cpp.
void line | ( | int | x0, |
int | y0, | ||
int | x1, | ||
int | y1 | ||
) |
draw a 1 pixel line
- Parameters:
-
x0,y0 start point x1,y1 stop point
Definition at line 46 of file Graphic.cpp.
void locate | ( | int | x, |
int | y | ||
) |
setup cursor position
- Parameters:
-
x x-position (top left) y y-position
Definition at line 187 of file Graphic.cpp.
void pixel | ( | int | x, |
int | y, | ||
unsigned int | color | ||
) |
set or reset a single pixel
- Parameters:
-
x horizontal position y vertical position
Definition at line 27 of file Graphic.cpp.
void print | ( | const char * | str ) |
print a string on the screen
- Parameters:
-
str string to print
Definition at line 256 of file Graphic.cpp.
void print_bm | ( | Bitmap | bm, |
int | x, | ||
int | y | ||
) |
print bitmap to buffer
- Parameters:
-
bm struct Bitmap in flash x x start y y start
Definition at line 263 of file Graphic.cpp.
void putc | ( | int | value ) |
put a char on the screen
- Parameters:
-
value char to print
- Returns:
- printed char
Definition at line 205 of file Graphic.cpp.
void rect | ( | int | x0, |
int | y0, | ||
int | x1, | ||
int | y1 | ||
) |
draw a rect
- Parameters:
-
x0,y0 top left corner x1,y1 down right corner
Definition at line 104 of file Graphic.cpp.
int rows | ( | ) |
calculate the max number of columns
- Returns:
- max column depends on actual font size
Definition at line 199 of file Graphic.cpp.
Generated on Wed Jul 13 2022 04:16:09 by 1.7.2