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# data file for the Fltk User Interface Designer (fluid)
version 1.0105
header_name {.h}
code_name {.cc}
decl {//Copyright (c) 2003-2005 Nasca Octavian Paul} {}
decl {//License: GNU GPL version 2 or later} {}
decl {\#include <FL/Fl_Dial.H>} {public
}
decl {\#include <FL/fl_draw.H>} {public
}
decl {\#include <stdio.h>} {public
}
decl {\#include <math.h>} {public
}
class WidgetPDial {: {public Fl_Dial}
} {
Function {WidgetPDial(int x,int y, int w, int h, const char *label=0):Fl_Dial(x,y,w,h,label)} {} {
code {oldvalue=0.0;} {}
}
Function {handle(int event)} {return_type int
} {
code {double dragsize,v,min=minimum(),max=maximum();
int my;
switch (event){
case FL_PUSH:oldvalue=value();
case FL_DRAG:
my=-(Fl::event_y()-y()-h()/2);
dragsize=200.0;
if (Fl::event_state(FL_BUTTON1)==0) dragsize*=10;
v=oldvalue+my/dragsize*(max-min);
if (v<min) v=min;
else if (v>max) v=max;
//printf("%d %g %g\\n",my,v,oldvalue);
value(v);
value_damage();
if (this->when()!=0) do_callback();
return(1);
break;
case FL_RELEASE:
if (this->when()==0) do_callback();
return(1);
break;
};
return(0);} {selected
}
}
Function {drawgradient(int cx,int cy,int sx,double m1,double m2)} {return_type void
} {
code {for (int i=(int)(m1*sx);i<(int)(m2*sx);i++){
double tmp=1.0-pow(i*1.0/sx,2.0);
pdialcolor(140+(int) (tmp*90),140+(int)(tmp*90),140+(int) (tmp*100));
fl_arc(cx+sx/2-i/2,cy+sx/2-i/2,i,i,0,360);
};} {}
}
Function {draw()} {} {
code {int cx=x(),cy=y(),sx=w(),sy=h();
//clears the button face
pdialcolor(190,190,200);
fl_pie(cx-1,cy-1,sx+2,sy+2,0,360);
//Draws the button face (gradinet)
drawgradient(cx,cy,sx,0.5,1.0);
double val=(value()-minimum())/(maximum()-minimum());
//draws the scale
pdialcolor(220,220,250);
double a1=angle1(),a2=angle2();
for (int i=0;i<12;i++){
double a=-i/12.0*360.0-val*(a2-a1)-a1;
fl_pie(cx,cy,sx,sy,a+270-3,a+3+270);
};
drawgradient(cx,cy,sx,0.0,0.75);
//draws the value
double a=-(a2-a1)*val-a1;
//draws the max and min points
pdialcolor(0,100,200);
int xp=(int)(cx+sx/2.0+sx/2.0*sin(angle1()/180.0*3.141592));
int yp=(int)(cy+sy/2.0+sy/2.0*cos(angle1()/180.0*3.141592));
fl_pie(xp-2,yp-2,4,4,0,360);
xp=(int)(cx+sx/2.0+sx/2.0*sin(angle2()/180.0*3.141592));
yp=(int)(cy+sy/2.0+sy/2.0*cos(angle2()/180.0*3.141592));
fl_pie(xp-2,yp-2,4,4,0,360);
fl_push_matrix();
fl_translate(cx+sx/2,cy+sy/2);
fl_rotate(a-90.0);
fl_translate(sx/2,0);
fl_begin_polygon();
pdialcolor(0,0,0);
fl_vertex(-10,-4);
fl_vertex(-10,4);
fl_vertex(0,0);
fl_end_polygon();
fl_pop_matrix();} {}
}
Function {pdialcolor(int r,int g,int b)} {} {
code {if (active_r()) fl_color(r,g,b);
else fl_color(160-(160-r)/3,160-(160-b)/3,160-(160-b)/3);} {}
}
decl {double oldvalue;} {}
}
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