// -*- C++ -*-
/*
* Simple MultimEdia LiTerator(SMELT)
* by Chris Xiong 2015
* 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 "smentity.hpp"
#include "smgrid.hpp"
class indicatorCircular
{
private:
smGrid *circle;
float value,radius,thickness;
DWORD color;
BYTE alpha;
public:
void init(float r,float 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)
{
float tang,tx,ty;
tang=(float)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(float 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((float)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;}
};
class indicatorLinear
{
private:
smEntity2D *upper,*lower;
float value,maxlength,thickness;
DWORD color;smTexRect trect;
BYTE alpha;
public:
void init(float ml,float thkns,BYTE a,SMTEX tex,smTexRect tr)
{
upper=new smEntity2D(tex,tr.x,tr.y,tr.w,tr.h/2);
lower=new smEntity2D(tex,tr.x,tr.y+tr.h/2,tr.w,tr.h/2);
maxlength=ml;thickness=thkns;alpha=a;color=0;trect=tr;
}
void overrideColor(DWORD col){color=col;}
void setAlpha(BYTE a){alpha=a;}
void setValue(float v)
{
value=v;
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;
upper->setColor(tcolor,0);upper->setColor(tcolor,1);
upper->setColor(0,2);upper->setColor(0,3);
lower->setColor(0,0);lower->setColor(0,1);
lower->setColor(tcolor,2);lower->setColor(tcolor,3);
}
void render(float x,float y)
{
upper->render(x,y,0,value*maxlength/trect.w,thickness/trect.h/2);
lower->render(x,y+thickness/2,0,value*maxlength/trect.w,thickness/trect.h/2);
}
void deinit(){delete upper;delete lower;upper=lower=NULL;}
};
#endif
