// -*- C++ -*-
/*
* Simple MultimEdia LiTerator(SMELT)
* by Chris Xiong 2015
* api level 1
* Indicator header & implementation
*
* WARNING: This library is in development and interfaces would be very
* unstable.
*
*/
#ifndef SMINDICATOR_H
#define SMINDICATOR_H
#include "smelt.hpp"
#include "smmath.hpp"
#include "smcolor.hpp"
#include "smgrid.hpp"
class indicatorCircular
{
private:
smGrid *circle;
double value,radius,thickness;
DWORD color;
BYTE alpha;
public:
void init(double r,double thkns,BYTE a,SMTEX tex,smTexRect tr)
{
circle=new smGrid(1025,3);
circle->setTexture(tex);
circle->setTextureRectv(tr);
radius=r;thickness=thkns;alpha=a;color=0;
for(int i=0;i<=1024;++i)
{
double tang,tx,ty;
tang=(double)i/1024.*PI*2-PI/2;
tx=-cos(tang)*radius;ty=sin(tang)*radius;
circle->setPos(i,2,tx,ty,0.5,GRID_REFTOPLEFT);
tx=-cos(tang)*(radius-thickness);ty=sin(tang)*(radius-thickness);
circle->setPos(i,1,tx,ty,0.5,GRID_REFTOPLEFT);
tx=-cos(tang)*(radius-2*thickness);ty=sin(tang)*(radius-2*thickness);
circle->setPos(i,0,tx,ty,0.5,GRID_REFTOPLEFT);
}
}
void overrideColor(DWORD col){color=col;}
void setAlpha(BYTE a){alpha=a;}
void setValue(double v)
{
value=v;
for(int i=0;i<=1024;++i)
{
int tr=(int)((1.0f-value)*255);
int tg=(int)(value*255);
DWORD tcolor=ARGB(alpha,tr,tg,0);
smColorHSVA *tc=new smColorHSVA(tcolor);
if(tc->v<0.85)tc->v=0.85;
tcolor=color?SETA(color,alpha):SETA(tc->getHWColor(),alpha);
delete tc;
if((double)i/1024.<=value)
{
circle->setColor(i,2,tcolor);
circle->setColor(i,1,SETA(0x00FFFFFF,alpha));
circle->setColor(i,0,tcolor);
}
else
{
circle->setColor(i,2,0);
circle->setColor(i,1,0);
circle->setColor(i,0,0);
}
}
}
void render(float x,float y){circle->render(x,y);}
void deinit(){delete circle;circle=NULL;}
};
#endif