1 files changed, 113 insertions, 0 deletions
diff --git a/include/smindicator.hpp b/include/smindicator.hpp
new file mode 100644
index 0000000..0595dc8
--- /dev/null
+++ b/include/smindicator.hpp
@@ -0,0 +1,113 @@
+// -*- 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