void	My_DrawExtensions::SetLineProperties(int width,int style,const RGBA_T &color){
	if((linewidth==width)&&(linestyle==style)&&(linecolor==color)) return;
#ifdef PLATFORM_WIN32
	int ps=0;
	switch(style){
		case GS_LINESTYLE_NULL:
			ps=PS_NULL;
			break;
		default:
		case GS_LINESTYLE_SOLID:
			ps=PS_SOLID;
			break;
		case GS_LINESTYLE_DOT:
			ps=PS_DOT;
			break;
		case GS_LINESTYLE_DASH:
			ps=PS_DASH;
			break;
		case GS_LINESTYLE_DASHDOT:
			ps=PS_DASHDOT;
			break;
		case GS_LINESTYLE_DASHDOTDOT:
			ps=PS_DASHDOTDOT;
			break;
	}

	HPEN pen=0;
	if((ps==PS_SOLID)||(ps==PS_NULL)){
		
		if((width>=2)&&(ps==PS_SOLID)){
			LOGBRUSH lb;
	
			lb.lbStyle=BS_SOLID;
			lb.lbColor=RGB(color.r,color.g,color.b);
			lb.lbHatch=0;
			
			pen=ExtCreatePen(PS_GEOMETRIC|PS_ENDCAP_FLAT|PS_JOIN_BEVEL|PS_SOLID,width,&lb,0,0);
		}
		else pen=CreatePen(ps,width<0?0:width, RGB(color.r,color.g,color.b));
	}
	else{
		LOGBRUSH lb;

		lb.lbStyle=BS_SOLID;
		lb.lbColor=RGB(color.r,color.g,color.b);
		lb.lbHatch=0;

		INT32 w=width<=1?0:width;
		int ending=PS_ENDCAP_FLAT|PS_JOIN_BEVEL;

		switch(style){
			case GS_LINESTYLE_DOT:
				pen=ExtCreatePen(PS_GEOMETRIC|PS_USERSTYLE|ending,w,&lb,2,L_DOT);
				break;
			case GS_LINESTYLE_DASH:
				pen=ExtCreatePen(PS_GEOMETRIC|PS_USERSTYLE|ending,w,&lb,2,L_DASH);
				break;
			case GS_LINESTYLE_DASHDOT:
				pen=ExtCreatePen(PS_GEOMETRIC|PS_USERSTYLE|ending,w,&lb,4,L_DASHDOT);
				break;
			case GS_LINESTYLE_DASHDOTDOT:
				pen=ExtCreatePen(PS_GEOMETRIC|PS_USERSTYLE|ending,w,&lb,6,L_DASHDOTDOT);
				break;
			default:
				pen=ExtCreatePen(PS_GEOMETRIC|PS_SOLID|ending,w,&lb,0,0);
				break;
		}
	}
	if(pen){
		HPEN h = (HPEN) SelectObject(hdc, pen);
		DeleteObject(h);
		linestyle=style;
		linewidth=width;
		linecolor=color;
	}
#else // X11 way
	if((style!=linestyle)||(width!=linewidth)){
		static const char dot[] = { 3, 3 };
		static const char dash[] = { 18, 6 };
		static const char dashdot[] = { 9, 6, 3, 6 };
		static const char dashdotdot[] = { 9, 3, 3, 3, 3, 3 };
		static struct {
			const char *dash;
			int   len;
		} ds[] = {
			dot, __countof(dot),
			dash, __countof(dash),
			dashdot, __countof(dashdot),
			dashdotdot, __countof(dashdotdot)
		};
		switch(style){
			case GS_LINESTYLE_SOLID:
				XSetLineAttributes(Xdisplay, gc, width<0?0:width,LineSolid,CapNotLast,JoinBevel);
				break;
			case GS_LINESTYLE_DOT:
				XSetDashes(Xdisplay, gc, 0, ds[0].dash, ds[0].len);
				XSetLineAttributes(Xdisplay, gc, width<0?0:width,LineOnOffDash,CapNotLast,JoinBevel);
				break;
			case GS_LINESTYLE_DASH:
				XSetDashes(Xdisplay, gc, 0, ds[1].dash, ds[1].len);
				XSetLineAttributes(Xdisplay, gc, width<0?0:width,LineOnOffDash,CapNotLast,JoinBevel);
				break;
			case GS_LINESTYLE_DASHDOT:
				XSetDashes(Xdisplay, gc, 0, ds[2].dash, ds[2].len);
				XSetLineAttributes(Xdisplay, gc, width<0?0:width,LineOnOffDash,CapNotLast,JoinBevel);
				break;
			case GS_LINESTYLE_DASHDOTDOT:
				XSetDashes(Xdisplay, gc, 0, ds[3].dash, ds[3].len);
				XSetLineAttributes(Xdisplay, gc, width<0?0:width,LineOnOffDash,CapNotLast,JoinBevel);
				break;
		}
		linestyle=style;
		linewidth=width;
	}
	linecolor=color;
#endif
}