/*
* \brief Draws a rectangle on LCD, at the given coordinates.
*
* \param x X-coordinate of upper-left rectangle corner.
* \param y Y-coordinate of upper-left rectangle corner.
* \param width Rectangle width in pixels.
* \param height Rectangle height in pixels.
* \param color Rectangle color.
*/
extern void LCDD_DrawRectangle( uint32_t x, uint32_t y, uint32_t width, uint32_t height, uint32_t color )
{
LCDD_DrawRectangleWithFill(x, y, width, y, color);
LCDD_DrawRectangleWithFill(x, height, width, height, color);
LCDD_DrawRectangleWithFill(x, y, x, height, color);
LCDD_DrawRectangleWithFill(width, y, width, height, color);
}
/**
* \brief Clears a calibration point from the given buffer.
*
* \param pPoint Calibration point to clear.
*/
static void ClearCalibrationPoint(const CalibrationPoint *pPoint)
{
LCDD_DrawRectangleWithFill(pPoint->x - POINTS_SIZE / 2,
pPoint->y - POINTS_SIZE / 2,
POINTS_SIZE,
POINTS_SIZE,
COLOR_WHITE);
}
extern uint32_t LCD_DrawFilledCircle( uint32_t dwX, uint32_t dwY, uint32_t dwRadius, uint32_t color)
{
signed int d ; /* Decision Variable */
uint32_t dwCurX ; /* Current X Value */
uint32_t dwCurY ; /* Current Y Value */
uint32_t dwXmin, dwYmin;
if (dwRadius == 0)
{
return 0;
}
d = 3 - (dwRadius << 1) ;
dwCurX = 0 ;
dwCurY = dwRadius ;
while ( dwCurX <= dwCurY )
{
dwXmin = (dwCurX > dwX) ? 0 : dwX-dwCurX;
dwYmin = (dwCurY > dwY) ? 0 : dwY-dwCurY;
LCDD_DrawRectangleWithFill( dwXmin, dwYmin, dwX+dwCurX, dwYmin ,color) ;
LCDD_DrawRectangleWithFill( dwXmin, dwY+dwCurY, dwX+dwCurX, dwY+dwCurY, color ) ;
dwXmin = (dwCurY > dwX) ? 0 : dwX-dwCurY;
dwYmin = (dwCurX > dwY) ? 0 : dwY-dwCurX;
LCDD_DrawRectangleWithFill( dwXmin, dwYmin, dwX+dwCurY, dwYmin, color ) ;
LCDD_DrawRectangleWithFill( dwXmin, dwY+dwCurX, dwX+dwCurY, dwY+dwCurX, color ) ;
if ( d < 0 )
{
d += (dwCurX << 2) + 6 ;
}
else
{
d += ((dwCurX - dwCurY) << 2) + 10;
dwCurY-- ;
}
dwCurX++ ;
}
return 0 ;
}
/*
* \brief Draw a line on LCD, horizontal and vertical line are supported.
*
* \param x X-coordinate of line start.
* \param y Y-coordinate of line start.
* \param length line length.
* \param direction line direction: 0 - horizontal, 1 - vertical.
* \param color Pixel color.
*/
extern void LCDD_DrawLine( uint32_t dwX1, uint32_t dwY1, uint32_t dwX2, uint32_t dwY2 , uint32_t color )
{
if (( dwY1 == dwY2 ) || (dwX1 == dwX2))
{
LCDD_DrawRectangleWithFill( dwX1, dwY1, dwX2, dwY2, color );
}
else
{
LCDD_DrawLineBresenham( dwX1, dwY1, dwX2, dwY2 , color) ;
}
}
