void TM_ILI9341_DrawFilledCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color)
{
int16_t f = 1 - r;
int16_t ddF_x = 1;
int16_t ddF_y = -2 * r;
int16_t x = 0;
int16_t y = r;
TM_ILI9341_DrawPixel(x0, y0 + r, color);
TM_ILI9341_DrawPixel(x0, y0 - r, color);
TM_ILI9341_DrawPixel(x0 + r, y0, color);
TM_ILI9341_DrawPixel(x0 - r, y0, color);
TM_ILI9341_DrawLine(x0 - r, y0, x0 + r, y0, color);
while (x < y) {
if (f >= 0) {
y--;
ddF_y += 2;
f += ddF_y;
}
x++;
ddF_x += 2;
f += ddF_x;
TM_ILI9341_DrawLine(x0 - x, y0 + y, x0 + x, y0 + y, color);
TM_ILI9341_DrawLine(x0 + x, y0 - y, x0 - x, y0 - y, color);
TM_ILI9341_DrawLine(x0 + y, y0 + x, x0 - y, y0 + x, color);
TM_ILI9341_DrawLine(x0 + y, y0 - x, x0 - y, y0 - x, color);
}
}
void TM_ILI9341_DrawLine(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color) {
/* Code by dewoller: https://github.com/dewoller */
int16_t dx, dy, sx, sy, err, e2;
dx = (x0 < x1) ? (x1 - x0) : (x0 - x1);
dy = (y0 < y1) ? (y1 - y0) : (y0 - y1);
sx = (x0 < x1) ? 1 : -1;
sy = (y0 < y1) ? 1 : -1;
err = ((dx > dy) ? dx : -dy) / 2;
while (1) {
TM_ILI9341_DrawPixel(x0, y0, color);
if (x0 == x1 && y0 == y1) {
break;
}
e2 = err;
if (e2 > -dx) {
err -= dy;
x0 += sx;
}
if (e2 < dy) {
err += dx;
y0 += sy;
}
}
}
void TM_ILI9341_Putc(uint16_t x, uint16_t y, char c, TM_FontDef_t *font, uint16_t foreground, uint16_t background) {
uint32_t i, b, j;
if ((ILI9341_x + font->FontWidth) > ILI9341_Opts.Width) {
//If at the end of a line of display, go to new line and set x to 0 position
ILI9341_y += font->FontHeight;
ILI9341_x = 0;
}
for (i = 0; i < font->FontHeight; i++) {
b = font->data[(c - 32) * font->FontHeight + i];
for (j = 0; j < font->FontWidth; j++) {
if ((b << j) & 0x8000) {
TM_ILI9341_DrawPixel(ILI9341_x + j, (ILI9341_y + i), foreground);
} else {
TM_ILI9341_DrawPixel(ILI9341_x + j, (ILI9341_y + i), background);
}
}
}
ILI9341_x += font->FontWidth;
}
ErrorStatus TM_ILI9341_Button_Draw(uint8_t id) {
uint16_t fontWidth, fontHeight, x, y, i, j;
if ((TM_ILI9341_Buttons[id].flags & TM_BUTTON_FLAG_USED) == 0) {
//Button not enabled
return ERROR;
}
//Draw label
if (TM_ILI9341_Buttons[id].flags & TM_BUTTON_FLAG_IMAGE) {
//Draw picture
for (i = 0; i < TM_ILI9341_Buttons[id].width; i++) {
for (j = 0; j < TM_ILI9341_Buttons[id].height; j++) {
TM_ILI9341_DrawPixel( TM_ILI9341_Buttons[id].x + i,
TM_ILI9341_Buttons[id].y + j,
*(uint16_t *)(TM_ILI9341_Buttons[id].image + j * TM_ILI9341_Buttons[id].width + i)
);
}
}
} else {
//Background
TM_ILI9341_DrawFilledRectangle( TM_ILI9341_Buttons[id].x,
TM_ILI9341_Buttons[id].y,
TM_ILI9341_Buttons[id].x + TM_ILI9341_Buttons[id].width,
TM_ILI9341_Buttons[id].y + TM_ILI9341_Buttons[id].height,
TM_ILI9341_Buttons[id].background );
}
//Display label
if ((TM_ILI9341_Buttons[id].flags & TM_BUTTON_FLAG_NOLABEL) == 0) {
TM_ILI9341_GetStringSize(TM_ILI9341_Buttons[id].label, TM_ILI9341_Buttons[id].font, &fontWidth, &fontHeight);
x = TM_ILI9341_Buttons[id].x + TM_ILI9341_Buttons[id].width / 2 - (fontWidth / 2);
y = TM_ILI9341_Buttons[id].y + TM_ILI9341_Buttons[id].height / 2 - (fontHeight / 2);
TM_ILI9341_Puts(x, y, TM_ILI9341_Buttons[id].label, TM_ILI9341_Buttons[id].font, TM_ILI9341_Buttons[id].color, TM_ILI9341_Buttons[id].background);
}
//Border
if ((TM_ILI9341_Buttons[id].flags & TM_BUTTON_FLAG_NOBORDER) == 0) {
//Border enabled
TM_ILI9341_DrawRectangle( TM_ILI9341_Buttons[id].x,
TM_ILI9341_Buttons[id].y,
TM_ILI9341_Buttons[id].x + TM_ILI9341_Buttons[id].width,
TM_ILI9341_Buttons[id].y + TM_ILI9341_Buttons[id].height,
TM_ILI9341_Buttons[id].borderColor );
}
return SUCCESS;
}
int main(void) {
char str[30];
/* Create TouchData struct */
TM_STMPE811_TouchData touchData;
/* Initialize system */
SystemInit();
/* Initialize LCD */
TM_ILI9341_Init();
/* Fill with orange color */
TM_ILI9341_Fill(ILI9341_COLOR_ORANGE);
/* Rotate LCD */
TM_ILI9341_Rotate(TM_ILI9341_Orientation_Portrait_2);
/* Initialize Touch */
if (TM_STMPE811_Init() != TM_STMPE811_State_Ok) {
TM_ILI9341_Puts(20, 20, "STMPE811 Error", &TM_Font_11x18, ILI9341_COLOR_ORANGE, ILI9341_COLOR_BLACK);
while (1);
}
/* Select touch screen orientation */
touchData.orientation = TM_STMPE811_Orientation_Portrait_2;
/* Print some text */
TM_ILI9341_Puts(20, 20, "Press on LCD", &TM_Font_11x18, ILI9341_COLOR_ORANGE, ILI9341_COLOR_BLACK);
TM_ILI9341_Puts(93, 310, "stm32f4-discovery.com", &TM_Font_7x10, ILI9341_COLOR_GREEN, ILI9341_COLOR_BLACK);
while (1) {
if (TM_STMPE811_ReadTouch(&touchData) == TM_STMPE811_State_Pressed) {
/* Touch valid */
sprintf(str, "Pressed \n\nX: %03d\nY: %03d", touchData.x, touchData.y);
TM_ILI9341_Puts(20, 80, str, &TM_Font_11x18, ILI9341_COLOR_BLACK, ILI9341_COLOR_ORANGE);
/* Draw pixel on touch location */
TM_ILI9341_DrawPixel(touchData.x, touchData.y, 0x0000);
} else {
sprintf(str, "Not Pressed\n\n \n ");
TM_ILI9341_Puts(20, 80, str, &TM_Font_11x18, ILI9341_COLOR_BLACK, ILI9341_COLOR_ORANGE);
}
}
}
int main(void) {
char str[30];
//Create TouchData struct
TM_STMPE811_TouchData touchData;
//Initialize system
SystemInit();
//Initialize LCD
TM_ILI9341_Init();
//Fill with orange color
TM_ILI9341_Fill(ILI9341_COLOR_ORANGE);
//Rotate LCD
TM_ILI9341_Rotate(TM_ILI9341_Orientation_Portrait_2);
//Initialize Touch
TM_STMPE811_Init();
//Select touch screen orientation
touchData.orientation = TM_STMPE811_Orientation_Portrait_2;
//Print some text
TM_ILI9341_Puts(20, 20, "Press on LCD", &TM_Font_11x18, ILI9341_COLOR_ORANGE, ILI9341_COLOR_BLACK);
TM_ILI9341_Puts(168, 308, "majerle.eu", &TM_Font_7x10, ILI9341_COLOR_GREEN, ILI9341_COLOR_BLACK);
while (1) {
if (TM_STMPE811_ReadTouch(&touchData) == TM_STMPE811_State_Pressed) {
//Touch valid
sprintf(str, "Pressed \n\nX: %03d\nY: %03d", touchData.x, touchData.y);
TM_ILI9341_Puts(20, 80, str, &TM_Font_11x18, ILI9341_COLOR_BLACK, ILI9341_COLOR_ORANGE);
TM_ILI9341_DrawPixel(touchData.x, touchData.y, 0x0000);
} else {
sprintf(str, "Not Pressed\n\n \n ");
TM_ILI9341_Puts(20, 80, str, &TM_Font_11x18, ILI9341_COLOR_BLACK, ILI9341_COLOR_ORANGE);
}
}
}
void TM_ILI9341_DrawLine(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color)
{
short dx, dy;
short temp;
if (x0 > x1) {
temp = x1;
x1 = x0;
x0 = temp;
}
if (y0 > y1) {
temp = y1;
y1 = y0;
y0 = temp;
}
dx = x1 - x0;
dy = y1 - y0;
if (dx == 0) {
do {
TM_ILI9341_DrawPixel(x0, y0, color);
y0++;
} while (y1 >= y0);
return;
}
if (dy == 0) {
do {
TM_ILI9341_DrawPixel(x0, y0, color);
x0++;
} while (x1 >= x0);
return;
}
/* Based on Bresenham's line algorithm */
if (dx > dy) {
temp = 2 * dy - dx;
while (x0 != x1) {
TM_ILI9341_DrawPixel(x0, y0, color);
x0++;
if (temp > 0) {
y0++;
temp += 2 * dy - 2 * dx;
} else {
temp += 2 * dy;
}
}
TM_ILI9341_DrawPixel(x0, y0, color);
} else {
temp = 2 * dx - dy;
while (y0 != y1) {
TM_ILI9341_DrawPixel(x0, y0, color);
y0++;
if (temp > 0) {
x0++;
temp += 2 * dy - 2 * dx;
} else {
temp += 2 * dy;
}
}
TM_ILI9341_DrawPixel(x0, y0, color);
}
}