static int iDialMotionHorizontal_CB(Ihandle* ih, int x, int y, char *status)
{
IFn cb;
if (!iup_isbutton1(status))
return IUP_DEFAULT;
y = cdIupInvertYAxis(y, ih->data->h);
ih->data->angle += (double)(x-ih->data->px) / ih->data->radius;
ih->data->px = x;
iDialRepaint(ih);
cb = (IFn)IupGetCallback(ih, "VALUECHANGED_CB");
if (cb)
cb(ih);
else
{
IFnd cb_old = (IFnd) IupGetCallback(ih, "MOUSEMOVE_CB");
if (cb_old)
cb_old(ih, ih->data->angle * ih->data->unit);
}
return IUP_DEFAULT;
}
static void motValCallAction(Ihandle* ih, int ival, int cb_state)
{
double old_val = ih->data->val;
IFn cb;
ih->data->val = (((double)ival/(double)SHRT_MAX)*(ih->data->vmax - ih->data->vmin)) + ih->data->vmin;
iupValCropValue(ih);
cb = (IFn)IupGetCallback(ih, "VALUECHANGED_CB");
if (cb)
{
if (ih->data->val == old_val)
return;
cb(ih);
}
else
{
IFnd cb_old;
if (cb_state == 0)
cb_old = (IFnd) IupGetCallback(ih, "MOUSEMOVE_CB");
else if (cb_state == -1)
cb_old = (IFnd) IupGetCallback(ih, "BUTTON_RELEASE_CB");
else
cb_old = (IFnd) IupGetCallback(ih, "BUTTON_PRESS_CB");
if (cb_old)
cb_old(ih, ih->data->val);
}
}
static int iDialButtonPress(Ihandle* ih, int button, int x, int y)
{
IFn cb;
if (button!=IUP_BUTTON1)
return IUP_DEFAULT;
y = cdIupInvertYAxis(y, ih->data->h);
ih->data->px = x;
ih->data->py = y;
if (ih->data->orientation != IDIAL_CIRCULAR)
ih->data->angle=0;
cb = (IFn)IupGetCallback(ih, "VALUECHANGED_CB");
if (cb)
cb(ih);
else
{
IFnd cb_old = (IFnd) IupGetCallback(ih, "BUTTON_PRESS_CB");
if (cb_old)
cb_old(ih, ih->data->angle * ih->data->unit);
}
return IUP_DEFAULT;
}
static int winValCustomScroll(Ihandle* ih, int msg)
{
double old_val = ih->data->val;
int ival;
IFn cb;
ival = (int)SendMessage(ih->handle, TBM_GETPOS, 0, 0);
if (ih->data->inverted)
ival = SHRT_MAX-ival;
ih->data->val = (((double)ival/(double)SHRT_MAX)*(ih->data->vmax - ih->data->vmin)) + ih->data->vmin;
iupValCropValue(ih);
cb = (IFn)IupGetCallback(ih, "VALUECHANGED_CB");
if (cb)
{
if (ih->data->val == old_val)
return 0;
cb(ih);
}
else
{
IFnd cb_old = NULL;
switch (msg)
{
case TB_BOTTOM:
case TB_TOP:
case TB_LINEDOWN:
case TB_LINEUP:
case TB_PAGEDOWN:
case TB_PAGEUP:
{
cb_old = (IFnd) IupGetCallback(ih, "BUTTON_PRESS_CB");
break;
}
case TB_THUMBPOSITION:
{
cb_old = (IFnd) IupGetCallback(ih, "BUTTON_RELEASE_CB");
break;
}
case TB_THUMBTRACK:
{
cb_old = (IFnd) IupGetCallback(ih, "MOUSEMOVE_CB");
break;
}
}
if (cb_old)
cb_old(ih, ih->data->val);
}
return 0; /* not used */
}
static int iDialMotionCircular_CB(Ihandle* ih, int x, int y, char *status)
{
int cx = ih->data->w / 2;
int cy = ih->data->h / 2;
double vet, xa, ya, xb, yb, ma, mb, ab;
IFn cb;
if (!iup_isbutton1(status))
return IUP_DEFAULT;
y = cdIupInvertYAxis(y, ih->data->h);
xa = ih->data->px-cx;
ya = ih->data->py-cy;
ma = sqrt(xa * xa + ya * ya);
xb = x - cx;
yb = y - cy;
mb = sqrt(xb * xb + yb * yb);
ab = xa * xb + ya * yb;
vet = xa * yb - xb * ya;
ab = ab / (ma * mb);
/* if the mouse is in the center of the dial, ignore it */
if (ma == 0 || mb == 0 || ab < -1 || ab > 1)
return IUP_DEFAULT;
if (vet>0) ih->data->angle += acos(ab);
else ih->data->angle -= acos(ab);
iDialRepaint(ih);
ih->data->px = x;
ih->data->py = y;
cb = (IFn)IupGetCallback(ih, "VALUECHANGED_CB");
if (cb)
cb(ih);
else
{
IFnd cb_old = (IFnd) IupGetCallback(ih, "MOUSEMOVE_CB");
if (cb_old)
cb_old(ih, ih->data->angle * ih->data->unit);
}
return IUP_DEFAULT;
}
static int iDialButtonRelease(Ihandle* ih, int button)
{
IFn cb;
if (button!=IUP_BUTTON1)
return IUP_DEFAULT;
iDialRepaint(ih);
cb = (IFn)IupGetCallback(ih, "VALUECHANGED_CB");
if (cb)
cb(ih);
else
{
IFnd cb_old = (IFnd) IupGetCallback(ih, "BUTTON_RELEASE_CB");
if (cb_old)
cb_old(ih, ih->data->angle * ih->data->unit);
}
return IUP_DEFAULT;
}
static int iDialWheel_CB(Ihandle* ih, float delta)
{
IFn cb;
ih->data->angle += ((double)delta) * (M_PI / 10.0);
if (fabs(ih->data->angle) < M_PI / 10.1)
ih->data->angle = 0;
iDialRepaint(ih);
cb = (IFn)IupGetCallback(ih, "VALUECHANGED_CB");
if (cb)
cb(ih);
else
{
IFnd cb_old = (IFnd) IupGetCallback(ih, "MOUSEMOVE_CB");
if (cb_old)
cb_old(ih, ih->data->angle * ih->data->unit);
}
return IUP_DEFAULT;
}
static int iDialKeyPress_CB(Ihandle* ih, int c, int press)
{
IFn cb;
char* cb_name;
if (c != K_LEFT && c != K_UP &&
c != K_sLEFT && c != K_sUP &&
c != K_RIGHT && c != K_DOWN &&
c != K_sRIGHT && c != K_sDOWN &&
c != K_HOME)
return IUP_DEFAULT;
if (press && ih->data->pressing)
{
switch(c)
{
case K_sLEFT:
case K_sDOWN:
ih->data->angle -= M_PI / 100.0;
break;
case K_LEFT:
case K_DOWN:
ih->data->angle -= M_PI / 10.0;
break;
case K_sRIGHT:
case K_sUP:
ih->data->angle += M_PI / 100.0;
break;
case K_RIGHT:
case K_UP:
ih->data->angle += M_PI / 10.0;
break;
}
}
if (c == K_HOME)
ih->data->angle = 0;
if (press)
{
if (ih->data->pressing)
{
cb_name = "MOUSEMOVE_CB";
}
else
{
ih->data->pressing = 1;
if (ih->data->orientation != IDIAL_CIRCULAR)
ih->data->angle = 0;
cb_name = "BUTTON_PRESS_CB";
}
}
else
{
ih->data->pressing = 0;
cb_name = "RELEASE_CB";
}
iDialRepaint(ih);
cb = (IFn)IupGetCallback(ih, "VALUECHANGED_CB");
if (cb)
cb(ih);
else
{
IFnd cb_old = (IFnd) IupGetCallback(ih, cb_name);
if (cb_old)
cb_old(ih, ih->data->angle * ih->data->unit);
}
return IUP_IGNORE; /* to avoid arrow keys being processed by the system */
}