drawLine()

void AppWren::drawLine ( int16_t  start_x, int16_t  start_y, int16_t  end_x, int16_t  end_y, int16_t  r, int16_t  g, int16_t  b  )

inline

draws a line on the render target

Parameters

start_x
start_y
end_x
end_y
r
g
b

Definition at line 452 of file AppWren.h.

                                                                                                                 {
        
        if ((start_x == end_x) && (start_y == end_y)){
            if (draw){
                if (has_pop){
                    //draw->ILI9341_t3n::drawPixel(start_x,start_y,CL((uint16_t)r,(uint16_t)g,(uint16_t)b));
                } else{
                    if (!surface_cache) return;
                    if (start_x >= surface_cache->getWidth()) start_x = surface_cache->getWidth()-1;
                    if (start_y >= surface_cache->getHeight()) start_y = surface_cache->getHeight()-1;
                    if (start_x < 0 ) start_x = 0;
                    if (start_y < 0 ) start_y = 0;
 
                    if (end_x >= surface_cache->getWidth()) end_x = surface_cache->getWidth()-1;
                    if (end_y >= surface_cache->getHeight()) end_y = surface_cache->getHeight()-1;
                    if (end_x < 0 ) end_x = 0;
                    if (end_y < 0 ) end_y = 0;
                    draw->drawPixel(surface_cache,start_x,start_y,CL(r,g,b));
                }
            }
            return;
        }else if (draw){
            if (has_pop){
                draw->drawLine(start_x, start_y, end_x, end_y, CL(r,g,b));
            }else{
                if (!surface_cache) return;
                if (start_x >= surface_cache->getWidth()) start_x = surface_cache->getWidth()-1;
                if (start_y >= surface_cache->getHeight()) start_y = surface_cache->getHeight()-1;
                if (start_x < 0 ) start_x = 0;
                if (start_y < 0 ) start_y = 0;
 
                if (end_x >= surface_cache->getWidth()) end_x = surface_cache->getWidth()-1;
                if (end_y >= surface_cache->getHeight()) end_y = surface_cache->getHeight()-1;
                if (end_x < 0 ) end_x = 0;
                if (end_y < 0 ) end_y = 0;
                draw->drawSurfaceLine(surface_cache, start_x, start_y, end_x, end_y, CL(r,g,b));
            }
            return;   
        }
    }

References AppBaseClass::draw, ILI9341_t3_ERIS::drawPixel(), ILI9341_t3_ERIS::drawSurfaceLine(), Surface::getHeight(), Surface::getWidth(), AppBaseClass::has_pop, and surface_cache.

Referenced by drawLineCallback().

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