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comctl32: header: Implement HDM_SETHOTDIVIDER.

This commit is contained in:
Mikołaj Zalewski 2006-05-25 23:48:39 +02:00 committed by Alexandre Julliard
parent 4301543533
commit 7e461db203
1 changed files with 107 additions and 3 deletions
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110
dlls/comctl32/header.c
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@ -83,6 +83,7 @@ typedef struct
INT xOldTrack; /* track offset (see above) after the last WM_MOUSEMOVE */
INT nOldWidth; /* width of a sizing item after the last WM_MOUSEMOVE */
INT iHotItem; /* index of hot item (cursor is over this item) */
INT iHotDivider; /* index of the hot divider (used while dragging an item or by HDM_SETHOTDIVIDER) */
INT iMargin; /* width of the margin that surrounds a bitmap */
HIMAGELIST himl; /* handle to an image list (may be 0) */
@ -94,6 +95,7 @@ typedef struct
#define VERT_BORDER 4
#define DIVIDER_WIDTH 10
#define HOT_DIVIDER_WIDTH 2
#define MAX_HEADER_TEXT_LEN 260
#define HDN_UNICODE_OFFSET 20
#define HDN_FIRST_UNICODE (HDN_FIRST-HDN_UNICODE_OFFSET)
@ -190,6 +192,13 @@ HEADER_OrderToIndex(HWND hwnd, WPARAM wParam)
return infoPtr->order[iorder];
}
/* Note: if iItem is the last item then this function returns infoPtr->uNumItem */
static INT
HEADER_NextItem(HWND hwnd, INT iItem)
{
return HEADER_OrderToIndex(hwnd, HEADER_IndexToOrder(hwnd, iItem)+1);
}
static void
HEADER_SetItemBounds (HWND hwnd)
{
@ -227,6 +236,37 @@ HEADER_Size (HWND hwnd, WPARAM wParam)
return 0;
}
static void HEADER_GetHotDividerRect(HWND hwnd, HEADER_INFO *infoPtr, RECT *r)
{
INT iDivider = infoPtr->iHotDivider;
if (infoPtr->uNumItem > 0)
{
HEADER_ITEM *lpItem;
if (iDivider < infoPtr->uNumItem)
{
lpItem = &infoPtr->items[iDivider];
r->left = lpItem->rect.left - HOT_DIVIDER_WIDTH/2;
r->right = lpItem->rect.left + HOT_DIVIDER_WIDTH/2;
}
else
{
lpItem = &infoPtr->items[HEADER_OrderToIndex(hwnd, infoPtr->uNumItem-1)];
r->left = lpItem->rect.right - HOT_DIVIDER_WIDTH/2;
r->right = lpItem->rect.right + HOT_DIVIDER_WIDTH/2;
}
r->top = lpItem->rect.top;
r->bottom = lpItem->rect.bottom;
}
else
{
RECT clientRect;
GetClientRect(hwnd, &clientRect);
*r = clientRect;
r->right = r->left + HOT_DIVIDER_WIDTH/2;
}
}
static INT
HEADER_DrawItem (HWND hwnd, HDC hdc, INT iItem, BOOL bHotTrack)
@ -440,6 +480,18 @@ HEADER_DrawItem (HWND hwnd, HDC hdc, INT iItem, BOOL bHotTrack)
return phdi->rect.right;
}
static void
HEADER_DrawHotDivider(HWND hwnd, HDC hdc)
{
HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
HBRUSH brush;
RECT r;
HEADER_GetHotDividerRect(hwnd, infoPtr, &r);
brush = CreateSolidBrush(GetSysColor(COLOR_HIGHLIGHT));
FillRect(hdc, &r, brush);
DeleteObject(brush);
}
static void
HEADER_Refresh (HWND hwnd, HDC hdc)
@ -485,7 +537,9 @@ HEADER_Refresh (HWND hwnd, HDC hdc)
DrawEdge (hdc, &rect, EDGE_ETCHED, BF_BOTTOM|BF_MIDDLE);
}
}
if (infoPtr->iHotDivider != -1)
HEADER_DrawHotDivider(hwnd, hdc);
SelectObject (hdc, hOldFont);
}
@ -871,7 +925,6 @@ HEADER_SendClickNotify (HWND hwnd, UINT code, INT iItem)
(WPARAM)nmhdr.hdr.idFrom, (LPARAM)&nmhdr);
}
static LRESULT
HEADER_CreateDragImage (HWND hwnd, WPARAM wParam)
{
@ -908,6 +961,55 @@ HEADER_CreateDragImage (HWND hwnd, WPARAM wParam)
return (LRESULT)himl;
}
static LRESULT
HEADER_SetHotDivider(HWND hwnd, WPARAM wParam, LPARAM lParam)
{
HEADER_INFO *infoPtr = HEADER_GetInfoPtr(hwnd);
INT iDivider;
RECT r;
if (wParam)
{
POINT pt;
UINT flags;
pt.x = (INT)(SHORT)LOWORD(lParam);
pt.y = 0;
HEADER_InternalHitTest (hwnd, &pt, &flags, &iDivider);
if (flags & HHT_TOLEFT)
iDivider = 0;
else if (flags & HHT_NOWHERE || flags & HHT_TORIGHT)
iDivider = infoPtr->uNumItem;
else
{
HEADER_ITEM *lpItem = &infoPtr->items[iDivider];
if (pt.x > (lpItem->rect.left+lpItem->rect.right)/2)
iDivider = HEADER_NextItem(hwnd, iDivider);
}
}
else
iDivider = (INT)lParam;
/* Note; wParam==FALSE, lParam==-1 is valid and is used to clear the hot divider */
if (iDivider<-1 || iDivider>(int)infoPtr->uNumItem)
return iDivider;
if (iDivider != infoPtr->iHotDivider)
{
if (infoPtr->iHotDivider != -1)
{
HEADER_GetHotDividerRect(hwnd, infoPtr, &r);
InvalidateRect(hwnd, &r, FALSE);
}
infoPtr->iHotDivider = iDivider;
if (iDivider != -1)
{
HEADER_GetHotDividerRect(hwnd, infoPtr, &r);
InvalidateRect(hwnd, &r, FALSE);
}
}
return iDivider;
}
static LRESULT
HEADER_DeleteItem (HWND hwnd, WPARAM wParam)
@ -1390,6 +1492,7 @@ HEADER_Create (HWND hwnd, WPARAM wParam, LPARAM lParam)
infoPtr->iMoveItem = 0;
infoPtr->himl = 0;
infoPtr->iHotItem = -1;
infoPtr->iHotDivider = -1;
infoPtr->iMargin = 3*GetSystemMetrics(SM_CXEDGE);
infoPtr->nNotifyFormat =
SendMessageW (infoPtr->hwndNotify, WM_NOTIFYFORMAT, (WPARAM)hwnd, NF_QUERY);
@ -1901,7 +2004,8 @@ HEADER_WindowProc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
/* case HDM_SETFILTERCHANGETIMEOUT: */
/* case HDM_SETHOTDIVIDER: */
case HDM_SETHOTDIVIDER:
return HEADER_SetHotDivider(hwnd, wParam, lParam);
case HDM_SETIMAGELIST:
return HEADER_SetImageList (hwnd, (HIMAGELIST)lParam);