BOOL FASTCALL
co_IntGetScrollBarInfo(PWND Window, LONG idObject, PSCROLLBARINFO psbi)
{
INT Bar;
PSCROLLBARINFO sbi;
PSBDATA pSBData;
ASSERT_REFS_CO(Window);
Bar = SBOBJ_TO_SBID(idObject);
if(!SBID_IS_VALID(Bar))
{
EngSetLastError(ERROR_INVALID_PARAMETER);
ERR("Trying to get scrollinfo for unknown scrollbar type %d\n", Bar);
return FALSE;
}
if(!co_IntCreateScrollBars(Window))
{
ERR("Failed to create scrollbars for window.\n");
return FALSE;
}
sbi = IntGetScrollbarInfoFromWindow(Window, Bar);
pSBData = IntGetSBData(Window, Bar);
IntGetScrollBarRect(Window, Bar, &(sbi->rcScrollBar));
IntCalculateThumb(Window, Bar, sbi, pSBData);
RtlCopyMemory(psbi, sbi, sizeof(SCROLLBARINFO));
return TRUE;
}
BOOL FASTCALL
co_IntCreateScrollBars(PWND Window)
{
PSCROLLBARINFO psbi;
PSBDATA pSBData;
ULONG Size, s;
INT i;
ASSERT_REFS_CO(Window);
if (Window->pSBInfo && Window->pSBInfoex)
{
/* No need to create it anymore */
return TRUE;
}
/* Allocate memory for all scrollbars (HORZ, VERT, CONTROL) */
Size = 3 * (sizeof(SBINFOEX));
if(!(Window->pSBInfoex = ExAllocatePoolWithTag(PagedPool, Size, TAG_SBARINFO)))
{
ERR("Unable to allocate memory for scrollbar information for window %p\n", Window->head.h);
return FALSE;
}
RtlZeroMemory(Window->pSBInfoex, Size);
if(!(Window->pSBInfo = DesktopHeapAlloc( Window->head.rpdesk, sizeof(SBINFO))))
{
ERR("Unable to allocate memory for scrollbar information for window %p\n", Window->head.h);
return FALSE;
}
RtlZeroMemory(Window->pSBInfo, sizeof(SBINFO));
Window->pSBInfo->Vert.posMax = 100;
Window->pSBInfo->Horz.posMax = 100;
co_WinPosGetNonClientSize(Window,
&Window->rcWindow,
&Window->rcClient);
for(s = SB_HORZ; s <= SB_VERT; s++)
{
psbi = IntGetScrollbarInfoFromWindow(Window, s);
psbi->cbSize = sizeof(SCROLLBARINFO);
for (i = 0; i < CCHILDREN_SCROLLBAR + 1; i++)
psbi->rgstate[i] = 0;
pSBData = IntGetSBData(Window, s);
IntGetScrollBarRect(Window, s, &(psbi->rcScrollBar));
IntCalculateThumb(Window, s, psbi, pSBData);
}
return TRUE;
}
static VOID FASTCALL
IntUpdateSBInfo(PWND Window, int wBar)
{
PSCROLLBARINFO sbi;
LPSCROLLINFO psi;
ASSERT(Window);
ASSERT(Window->pSBInfoex);
sbi = IntGetScrollbarInfoFromWindow(Window, wBar);
psi = IntGetScrollInfoFromWindow(Window, wBar);
IntGetScrollBarRect(Window, wBar, &(sbi->rcScrollBar));
IntCalculateThumb(Window, wBar, sbi, psi);
}
