andlabs-ui/wintable/new/hscroll.h

53 lines
1.0 KiB
C

// 9 december 2014
// forward declaration needed here
static void repositionHeader(struct table *);
static struct scrollParams hscrollParams(struct table *t)
{
struct scrollParams p;
ZeroMemory(&p, sizeof (struct scrollParams));
p.pos = &(t->hscrollpos);
p.pagesize = t->hpagesize;
p.length = t->width;
p.scale = 1;
p.post = repositionHeader;
p.wheelCarry = &(t->hwheelCarry);
return p;
}
static void hscrollto(struct table *t, intptr_t pos)
{
struct scrollParams p;
p = hscrollParams(t);
scrollto(t, SB_HORZ, &p, pos);
}
static void hscrollby(struct table *t, intptr_t delta)
{
struct scrollParams p;
p = hscrollParams(t);
scrollby(t, SB_HORZ, &p, delta);
}
static void hscroll(struct table *t, WPARAM wParam, LPARAM lParam)
{
struct scrollParams p;
p = hscrollParams(t);
scroll(t, SB_HORZ, &p, wParam, lParam);
}
// TODO find out if we can indicriminately check for WM_WHEELHSCROLL
HANDLER(hscrollHandler)
{
if (uMsg != WM_HSCROLL)
return FALSE;
hscroll(t, wParam, lParam);
*lResult = 0;
return TRUE;
}