void Flcc_HueBox::draw()
{
if (damage() & FL_DAMAGE_ALL) {
draw_frame();
}
int x1 = 0; int y1 = 0; int w1 = w(); int h1 = h();
box()->inset(x1,y1,w1,h1);
if (damage() == FL_DAMAGE_VALUE) fl_push_clip(x1+px,y1+py,BUTTON_SIZE,BUTTON_SIZE);
if(bg) bg->draw(x1,y1,w1,h1);
if (damage() == FL_DAMAGE_VALUE) fl_pop_clip();
Fl_Color_Chooser* c = (Fl_Color_Chooser*)parent();
#ifdef CIRCLE
int X = int(.5f*(cos(c->hue()*float(M_PI/3.0))*c->saturation()+1) * (w1-BUTTON_SIZE));
int Y = int(.5f*(1-sin(c->hue()*float(M_PI/3.0))*c->saturation()) * (h1-BUTTON_SIZE));
#else
int X = int(c->hue()/6.0f*(w1-BUTTON_SIZE));
int Y = int((1-c->saturation())*(h1-BUTTON_SIZE));
#endif
if (X < 0) X = 0; else if (X > w1-BUTTON_SIZE) X = w1-BUTTON_SIZE;
if (Y < 0) Y = 0; else if (Y > h1-BUTTON_SIZE) Y = h1-BUTTON_SIZE;
button_box()->draw(x1+X, y1+Y, BUTTON_SIZE, BUTTON_SIZE, button_color(), 0);
px = X;
py = Y;
}
void Fl_Roller::draw()
{
if (damage()&(FL_DAMAGE_ALL|FL_DAMAGE_HIGHLIGHT)) draw_box();
int X=0; int Y=0; int W=w(); int H=h(); box()->inset(X,Y,W,H);
if (W<=0 || H<=0) return;
double s = step();
if (!s) s = (maximum()-minimum())/100;
int offset = int(value()/s);
const double ARC = 1.5; // 1/2 the number of radians visible
const double delta = .2; // radians per knurl
if (type()==HORIZONTAL)
{
// draw shaded ends of wheel:
int h1 = W/4+1; // distance from end that shading starts
fl_color(button_color()); fl_rectf(X+h1,Y,W-2*h1,H);
for (int i=0; h1; i++)
{
fl_color((Fl_Color)(FL_GRAY-i-1));
int h2 = FL_GRAY-i-1 > FL_DARK3 ? 2*h1/3+1 : 0;
fl_rectf(X+h2,Y,h1-h2,H);
fl_rectf(X+W-h1,Y,h1-h2,H);
h1 = h2;
}
if (active_r())
{
// draw ridges:
double junk;
for (double y = -ARC+modf(offset*sin(ARC)/(W/2)/delta,&junk)*delta;;
y += delta)
{
int y1 = int((sin(y)/sin(ARC)+1)*W/2);
if (y1 <= 0) continue; else if (y1 >= W-1) break;
fl_color(FL_DARK3); fl_line(X+y1,Y+1,X+y1,Y+H-1);
if (y < 0) y1--; else y1++;
fl_color(FL_LIGHT1);fl_line(X+y1,Y+1,X+y1,Y+H-1);
}
// draw edges:
h1 = W/8+1; // distance from end the color inverts
fl_color(FL_DARK2);
fl_line(X+h1,Y+H-1,X+W-h1,Y+H-1);
fl_color(FL_DARK3);
fl_line(X,Y+H,X,Y);
fl_line(X,Y,X+h1,Y);
fl_line(X+W-h1,Y,X+W,Y);
fl_color(FL_LIGHT2);
fl_line(X+h1,Y,X+W-h1,Y);
fl_line(X+W,Y,X+W,Y+H);
fl_line(X+W,Y+H,X+W-h1,Y+H);
fl_line(X+h1,Y+H,X,Y+H);
}
} // vertical one
else
{
offset = (1-offset);
// draw shaded ends of wheel:
int h1 = H/4+1; // distance from end that shading starts
fl_color(button_color()); fl_rectf(X,Y+h1,W,H-2*h1);
for (int i=0; h1; i++)
{
fl_color((Fl_Color)(FL_GRAY-i-1));
int h2 = FL_GRAY-i-1 > FL_DARK3 ? 2*h1/3+1 : 0;
fl_rectf(X,Y+h2,W,h1-h2);
fl_rectf(X,Y+H-h1,W,h1-h2);
h1 = h2;
}
if (active_r())
{
// draw ridges:
double junk;
for (double y = -ARC+modf(offset*sin(ARC)/(H/2)/delta,&junk)*delta;
; y += delta)
{
int y1 = int((sin(y)/sin(ARC)+1)*H/2);
if (y1 <= 0) continue; else if (y1 >= H-1) break;
fl_color(FL_DARK3); fl_line(X+1,Y+y1,X+W-1,Y+y1);
if (y < 0) y1--; else y1++;
fl_color(FL_LIGHT1);fl_line(X+1,Y+y1,X+W-1,Y+y1);
}
// draw edges:
h1 = H/8+1; // distance from end the color inverts
fl_color(FL_DARK2);
fl_line(X+W-1,Y+h1,X+W-1,Y+H-h1);
fl_color(FL_DARK3);
fl_line(X+W,Y,X,Y);
fl_line(X,Y,X,Y+h1);
fl_line(X,Y+H-h1,X,Y+H);
fl_color(FL_LIGHT2);
fl_line(X,Y+h1,X,Y+H-h1);
fl_line(X,Y+H,X+W,Y+H);
fl_line(X+W,Y+H,X+W,Y+H-h1);
fl_line(X+W,Y+h1,X+W,Y);
}
}
if (focused())
{
focus_box()->draw(0,0,w(),h(), FL_BLACK, FL_INVISIBLE);
}
}
