float paramval()
{
float p;
p = (float)(getmousex()-SLIDERLEFT)/(xsize-SLIDERLEFT);
if(p<0.0)
return 0.0;
if(p>1.0)
return 1.0;
return p;
}
void handler(float time)
{
static float oldtime=0.0f;
static float lx=0.0f,ly=0.0f;
static float mx,my;
static BOOLINT b1,b2,b3;
static int key;
int t1,t2,t3;
float newtime;
BOOLINT update;
int hook;
float over;
if (!GUI_demo)
{
mx=getmousex();
my=getmousey();
b1=getbutton1();
b2=getbutton2();
b3=getbutton3();
key=getkey();
}
else
switch (key=getkey())
{
case '\033': // quit application
case 'q':
case 'Q':
case 'x': quithook();
}
if (GUI_record)
fprintf(GUI_recfile,"time=%g dt=%g mx=%g my=%g b1=%d b2=%d b3=%d key=%d\n",
gettime()-GUI_start,time,mx,my,b1,b2,b3,(key!='D')?key:0);
update=TRUE;
if (GUI_demo)
if (oldtime<gettime()-GUI_start)
if (fscanf(GUI_recfile,"time=%g dt=%g mx=%g my=%g b1=%d b2=%d b3=%d key=%d\n",
&newtime,&time,&mx,&my,&t1,&t2,&t3,&key)!=8)
if (GUI_loop==0)
{
oldtime=newtime;
GUI_demo=FALSE;
b1=b2=b3=FALSE;
key=0;
}
else
{
fclose(GUI_recfile);
if ((GUI_recfile=fopen(RECORD,"rb"))==NULL) ERRORMSG();
oldtime=0.0f;
GUI_start=gettime();
b1=b2=b3=FALSE;
key=0;
}
else
{
oldtime=newtime;
b1=(t1!=0);
b2=(t2!=0);
b3=(t3!=0);
}
else update=FALSE;
if (update)
{
switch (key)
{
case ' ': // start/stop of flight
if (EYE_SPEED==0.0f) EYE_SPEED=EYE_MAXSPEED;
else stophook();
break;
case 'a': // accelerate flight
acchook();
break;
case 's': // decelerate flight
dechook();
break;
case 'w': // toggle wireframe
GUI_wire=!GUI_wire;
break;
case 'b': // toggle white background
GUI_white=!GUI_white;
break;
case 'B': // toggle inverse mode
GUI_inv=!GUI_inv;
break;
case 'm': // toggle premultiplied alpha
GUI_premult=!GUI_premult;
break;
case 'i': // toggle preintegration
GUI_preint=!GUI_preint;
break;
case 'g': // toggle 2DTF
GUI_grad=!GUI_grad;
reloadhook();
break;
case 'l': // toggle lighting
GUI_light=!GUI_light;
reloadhook();
break;
case 'h': // hide GUI
if (GUI_capt) GUI_capt=FALSE;
else GUI_hide=!GUI_hide;
reloadhook();
break;
case 'H': // hide GUI except TF
GUI_hide=FALSE;
GUI_capt=!GUI_capt;
reloadhook();
break;
case 'p': // toggle barycenters
GUI_points=!GUI_points;
break;
case '+': // select higher gradients
case 'A':
cyclehook();
break;
case '-': // select lower gradients
case 'S':
recyclehook();
break;
case '>': // select more gradients
incrangehook();
break;
case '<': // select fewer gradients
decrangehook();
break;
case '0': // disable gradient selection
VOLREN->get_tfunc()->unset_imp();
break;
case '1': // enable gradient selection
VOLREN->get_tfunc()->set_imp(GUI_cycle,GUI_range);
break;
case 'C': // toggle coupling
GUI_coupled=!GUI_coupled;
break;
case 'W': // write .sav file
savehook();
break;
case 'R': // read .sav file
loadhook();
break;
case 'D': // toggle event recording
if (!GUI_demo)
{
GUI_record=!GUI_record;
if (GUI_record)
{
if ((GUI_recfile=fopen(RECORD,"wb"))==NULL) ERRORMSG();
GUI_start=gettime();
}
}
break;
case '\033': // quit application
case 'q':
case 'Q':
case 'x': quithook();
}
if (gettime()-GUI_time>VOL_DELAY1) GUI_reduced=FALSE;
if (!b1) OGL_GUI.release(mx,my);
else
{
hook=OGL_GUI.click(mx,my);
if (hook==0)
if (!GUI_clip)
{
GUI_rotx+=mx-lx;
GUI_roty-=my-ly;
GUI_reduced=TRUE;
}
else
{
GUI_clip_dist-=my-ly;
GUI_reduced=TRUE;
}
else
if (hook!=GUI_hook1 &&
hook!=GUI_hook2 &&
hook!=GUI_hook3 &&
hook!=GUI_hook4 &&
hook!=GUI_hook5 &&
hook!=GUI_hook6 &&
hook!=GUI_hook7 &&
hook!=GUI_hook8 &&
hook!=GUI_hook9 &&
hook!=GUI_hook10 &&
hook!=GUI_hook11 &&
hook!=GUI_hook12 &&
hook!=GUI_hook14 &&
hook!=GUI_hook15 &&
hook!=GUI_hook16 &&
hook!=GUI_hook17 &&
hook!=GUI_hook18 &&
hook!=GUI_hook19 &&
hook!=GUI_hook20 &&
hook!=GUI_hook21 &&
hook!=GUI_hook22 &&
hook!=GUI_hook23 &&
hook!=GUI_hook24 &&
hook!=GUI_hook25 &&
hook!=GUI_hook26 &&
hook!=GUI_hook27 &&
hook!=GUI_hook28) GUI_reduced=TRUE;
GUI_time=gettime();
}
lx=mx;
ly=my;
GUI_roty=fmin(fmax(GUI_roty,-0.5f),0.5f);
EYE_DX=fsin(GUI_rotx*PI)*fcos(GUI_roty*PI);
EYE_DY=fsin(GUI_roty*PI);
EYE_DZ=-fcos(GUI_rotx*PI)*fcos(GUI_roty*PI);
EYE_UX=-fsin(GUI_rotx*PI)*fsin(GUI_roty*PI);
EYE_UY=fcos(GUI_roty*PI);
EYE_UZ=fcos(GUI_rotx*PI)*fsin(GUI_roty*PI);
if (b2)
if (b3) stophook();
else acchook();
else if (b3) dechook();
if (fabs(EYE_SPEED)>EYE_MAXSPEED/20.0f)
{
GUI_reduced=TRUE;
GUI_time=gettime();
}
EYE_X+=EYE_DX*EYE_SPEED*time;
EYE_Y+=EYE_DY*EYE_SPEED*time;
EYE_Z+=EYE_DZ*EYE_SPEED*time;
}
if (!GUI_reduced)
if (gettime()-GUI_time>VOL_DELAY2) over=VOL_OVERMIN;
else
if (GUI_slab1<0.5f)
{
float w=2.0f*GUI_slab1;
over=((1.0f-w)*VOL_OVERMAX+w);
}
else
{
float w=2.0f*(1.0f-GUI_slab1);
over=((1.0f-w)*VOL_OVERMIN+w);
}
else
if (GUI_slab1<0.5f)
{
float w=2.0f*GUI_slab1;
over=((1.0f-w)*VOL_OVERMAX+w)*fmin(1.0f/GUI_slab2,VOL_OVERMAX);
}
else
{
float w=2.0f*(1.0f-GUI_slab1);
over=((1.0f-w)*VOL_OVERMIN+w)*fmin(1.0f/GUI_slab2,VOL_OVERMAX);
}
VOLREN->enablewireframe(GUI_wire);
VOLREN->enablehistogram(GUI_points);
VOLREN->begin(EYE_FOVY,getaspect(),EYE_NEAR,EYE_FAR,
GUI_white,GUI_inv);
VOLREN->render(EYE_X,EYE_Y,EYE_Z,
EYE_DX,EYE_DY,EYE_DZ,
EYE_UX,EYE_UY,EYE_UZ,
EYE_NEAR,
GUI_fbo,
360.0f*GUI_rot,0.0f,0.0f,
0.0f,4.0f*(GUI_height-0.5f),0.0f,
VOL_EMISSION,VOL_DENSITY,
GUI_re_scale,GUI_ge_scale,GUI_be_scale,
GUI_ra_scale,GUI_ga_scale,GUI_ba_scale,
GUI_premult,GUI_preint,
GUI_inv,
over,
GUI_light,
GUI_clip,GUI_clip_dist);
OGL_GUI.refresh();
if (GUI_demo)
{
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0f,getwinwidth()-1,0.0f,getwinheight()-1);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glScalef(getwinwidth()-1,getwinheight()-1,0.0f);
glDisable(GL_DEPTH_TEST);
glColor3f(1.0f,0.0f,0.0f);
glBegin(GL_LINES);
glVertex2f(0.5f+mx-0.01f/getaspect(),0.5f+my-0.01f);
glVertex2f(0.5f+mx+0.01f/getaspect(),0.5f+my+0.01f);
glVertex2f(0.5f+mx+0.01f/getaspect(),0.5f+my-0.01f);
glVertex2f(0.5f+mx-0.01f/getaspect(),0.5f+my+0.01f);
glEnd();
glEnable(GL_DEPTH_TEST);
glPopMatrix();
}
swapbuffers();
}
