/*******************************************************************************
* Рисуем компас
******************************************************************************/
void compass(mtk_t * mtk) {
char sTemp[10];
uint8_t x, y, x1, y1, x2, y2, x3, y3;
x = 60;
y = 80;
x1 = 60;
y1 = 30;
x2 = 50;
y2 = 60;
x3 = 70;
y3 = 60;
u8g_DrawCircle(mtk->u8g, 60, 80, 50, U8G_DRAW_ALL);
u8g_DrawCircle(mtk->u8g, 60, 80, 20, U8G_DRAW_ALL);
u8g_DrawStr(mtk->u8g, 55, 87, "N");
rotate(x, y, &x1, &y1, angle);
rotate(x, y, &x2, &y2, angle);
rotate(x, y, &x3, &y3, angle);
u8g_DrawTriangle(mtk->u8g, x1,y1, x2,y2, x3,y3);
sprintf(sTemp, "Degree: %d", angle);
u8g_DrawStr(mtk->u8g, 120, 40, sTemp);
}
/* callback to draw the clock face */
int gui_draw_clock_face_cb(u8g_t *u8g, struct GuiWindow *win,
struct GuiPoint abspos)
{
struct GuiClockface *f = (struct GuiClockface *)win;
int center_x = f->center_x + abspos.x;
int center_y = f->center_y + abspos.y;
/* clear background to white */
u8g_SetDefaultBackgroundColor(u8g);
u8g_DrawBox(u8g, center_x-f->radius, center_y-f->radius, 2*f->radius, 2*f->radius);
u8g_SetDefaultForegroundColor(u8g);
/* face */
u8g_DrawCircle(u8g, center_x, center_y, f->radius, U8G_DRAW_ALL);
u8g_DrawCircle(u8g, center_x, center_y, f->radius+1, U8G_DRAW_ALL);
/* hour markers */
for (int h = 0; h < 12; ++h) {
u8g_DrawCircle(u8g,
sintab60[absrot60(h*5+15)] + center_x,
sintab60[h*5] + center_y, 2, U8G_DRAW_ALL);
}
int hours = (f->hours % 12);
int minutes = f->minutes % 60;
/* hours hand */
int angle = absrot60(-(short)hours*5 - (short)minutes/12 + 15);
int x2 = sintab60[absrot60(angle+15)]/2 + center_x; // cos, x-axis is natural direction
int y2 = (-sintab60[angle]/2) + center_y; // sin, y-axis is inverted
u8g_DrawLine(u8g, center_x, center_y, x2, y2);
u8g_DrawLine(u8g, center_x+1, center_y, x2+1, y2);
u8g_DrawLine(u8g, center_x, center_y+1, x2, y2+1);
u8g_DrawLine(u8g, center_x-1, center_y, x2-1, y2);
u8g_DrawLine(u8g, center_x, center_y-1, x2, y2-1);
/* minutes hand */
angle = absrot60(-(short)minutes + 15);
x2 = sintab60[absrot60(angle+15)]*30/34 + center_x; // cos, x-axis is natural direction
y2 = (-sintab60[angle])*30/34 + center_y; // sin, y-axis is inverted
u8g_DrawLine(u8g, center_x, center_y, x2, y2);
return 0;
}
// Lua: u8g.drawCircle( self, x0, y0, rad, opt = U8G_DRAW_ALL )
static int lu8g_drawCircle( lua_State *L )
{
lu8g_userdata_t *lud;
if ((lud = get_lud( L )) == NULL)
return 0;
u8g_uint_t args[3];
lu8g_get_int_args( L, 2, 3, args );
u8g_uint_t opt = luaL_optinteger( L, (1+3) + 1, U8G_DRAW_ALL );
u8g_DrawCircle( LU8G, args[0], args[1], args[2], opt );
return 0;
}
int main(void)
{
u8g_t u8g;
uint8_t rad;
u8g_Init(&u8g, &u8g_dev_sdl_1bit);
u8g_FirstPage(&u8g);
do
{
//u8g_SetFont(&u8g, u8g_font_unifont);
//u8g_SetFont(&u8g, u8g_font_osb18r);
for( rad = 2+3*2; rad < 30; rad += 3 )
{
u8g_DrawEmpCirc(&u8g, 0, 35, rad, U8G_DRAW_UPPER_RIGHT);
u8g_DrawCircle(&u8g, 0, 35+35, rad, U8G_DRAW_UPPER_RIGHT);
u8g_DrawEmpCirc(&u8g, 0+31, 5, rad, U8G_DRAW_LOWER_RIGHT);
u8g_DrawCircle(&u8g, 0+31, 5+35, rad, U8G_DRAW_LOWER_RIGHT);
u8g_DrawEmpCirc(&u8g, 30+31*2, 5, rad, U8G_DRAW_LOWER_LEFT);
u8g_DrawCircle(&u8g, 30+31*2, 5+35, rad, U8G_DRAW_LOWER_LEFT);
u8g_DrawEmpCirc(&u8g, 0+31*4, 35, rad, U8G_DRAW_UPPER_LEFT);
u8g_DrawCircle(&u8g, 0+31*4, 35+35, rad, U8G_DRAW_UPPER_LEFT);
}
} while( u8g_NextPage(&u8g) );
while( u8g_sdl_get_key() < 0 )
;
for( rad = 2+3*2; rad < 30; rad += 3 )
{
u8g_FirstPage(&u8g);
do
{
//u8g_SetFont(&u8g, u8g_font_unifont);
//u8g_SetFont(&u8g, u8g_font_osb18r);
u8g_DrawFillCirc(&u8g, 0, 35, rad, U8G_DRAW_UPPER_RIGHT);
u8g_DrawDisc(&u8g, 0, 35+35, rad, U8G_DRAW_UPPER_RIGHT);
u8g_DrawFillCirc(&u8g, 0+31, 5, rad, U8G_DRAW_LOWER_RIGHT);
u8g_DrawDisc(&u8g, 0+31, 5+35, rad, U8G_DRAW_LOWER_RIGHT);
u8g_DrawFillCirc(&u8g, 30+31*2, 5, rad, U8G_DRAW_LOWER_LEFT);
u8g_DrawDisc(&u8g, 30+31*2, 5+35, rad, U8G_DRAW_LOWER_LEFT);
u8g_DrawFillCirc(&u8g, 0+31*4, 35, rad, U8G_DRAW_UPPER_LEFT);
u8g_DrawDisc(&u8g, 0+31*4, 35+35, rad, U8G_DRAW_UPPER_LEFT);
} while( u8g_NextPage(&u8g) );
while( u8g_sdl_get_key() < 0 )
;
}
return 0;
}
