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listview: Implement LVS_EX_GRIDLINES functionality. 

Implement basic LVS_EX_GRIDLINES functionality including support for no items.
This commit is contained in:
Guy Albertelli 2008-04-26 00:20:03 -04:00 committed by Alexandre Julliard
parent 10708b405c
commit 7326f091b0
1 changed files with 93 additions and 1 deletions
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94
dlls/comctl32/listview.c
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@ -91,7 +91,6 @@
* Extended Styles
* -- LVS_EX_BORDERSELECT
* -- LVS_EX_FLATSB
* -- LVS_EX_GRIDLINES
* -- LVS_EX_HEADERDRAGDROP
* -- LVS_EX_INFOTIP
* -- LVS_EX_LABELTIP
@ -2495,6 +2494,8 @@ static INT LISTVIEW_CalculateItemHeight(const LISTVIEW_INFO *infoPtr)
else
{
nItemHeight = infoPtr->ntmHeight;
if (uView == LVS_REPORT && infoPtr->dwLvExStyle & LVS_EX_GRIDLINES)
nItemHeight++;
if (infoPtr->himlState)
nItemHeight = max(nItemHeight, infoPtr->iconStateSize.cy);
if (infoPtr->himlSmall)
@ -3873,6 +3874,11 @@ static BOOL LISTVIEW_DrawItem(LISTVIEW_INFO *infoPtr, HDC hdc, INT nItem, INT nS
else rcLabel.left += LABEL_HOR_PADDING;
}
else if (uFormat & DT_RIGHT) rcLabel.right -= LABEL_HOR_PADDING;
/* for GRIDLINES reduce the bottom so the text formats correctly */
if (uView == LVS_REPORT && infoPtr->dwLvExStyle & LVS_EX_GRIDLINES)
rcLabel.bottom--;
DrawTextW(hdc, lvItem.pszText, -1, &rcLabel, uFormat);
postpaint:
@ -4027,6 +4033,86 @@ static void LISTVIEW_RefreshReport(LISTVIEW_INFO *infoPtr, ITERATOR *i, HDC hdc,
iterator_destroy(&j);
}
/***
* DESCRIPTION:
* Draws the gridlines if necessary when in report display mode.
*
* PARAMETER(S):
* [I] infoPtr : valid pointer to the listview structure
* [I] hdc : device context handle
*
* RETURN:
* None
*/
static void LISTVIEW_RefreshReportGrid(LISTVIEW_INFO *infoPtr, HDC hdc)
{
INT rgntype;
INT y, itemheight;
HPEN hPen, hOldPen;
RECT rcClip, rcItem;
POINT Origin;
RANGE colRange;
ITERATOR j;
TRACE("()\n");
/* figure out what to draw */
rgntype = GetClipBox(hdc, &rcClip);
if (rgntype == NULLREGION) return;
/* Get scroll info once before loop */
LISTVIEW_GetOrigin(infoPtr, &Origin);
/* narrow down the columns we need to paint */
for(colRange.lower = 0; colRange.lower < DPA_GetPtrCount(infoPtr->hdpaColumns); colRange.lower++)
{
LISTVIEW_GetHeaderRect(infoPtr, colRange.lower, &rcItem);
if (rcItem.right + Origin.x >= rcClip.left) break;
}
for(colRange.upper = DPA_GetPtrCount(infoPtr->hdpaColumns); colRange.upper > 0; colRange.upper--)
{
LISTVIEW_GetHeaderRect(infoPtr, colRange.upper - 1, &rcItem);
if (rcItem.left + Origin.x < rcClip.right) break;
}
iterator_rangeitems(&j, colRange);
if ((hPen = CreatePen( PS_SOLID, 1, comctl32_color.clr3dFace )))
{
hOldPen = SelectObject ( hdc, hPen );
/* draw the vertical lines for the columns */
iterator_rangeitems(&j, colRange);
while(iterator_next(&j))
{
LISTVIEW_GetHeaderRect(infoPtr, j.nItem, &rcItem);
if (rcItem.left == 0) continue; /* skip first column */
rcItem.left += Origin.x;
rcItem.right += Origin.x;
rcItem.top = infoPtr->rcList.top;
rcItem.bottom = infoPtr->rcList.bottom;
TRACE("vert col=%d, rcItem=%s\n", j.nItem, wine_dbgstr_rect(&rcItem));
MoveToEx (hdc, rcItem.left, rcItem.top, NULL);
LineTo (hdc, rcItem.left, rcItem.bottom);
}
iterator_destroy(&j);
/* draw the horizontial lines for the rows */
itemheight = LISTVIEW_CalculateItemHeight(infoPtr);
rcItem.left = infoPtr->rcList.left + Origin.x;
rcItem.right = infoPtr->rcList.right + Origin.x;
for(y=itemheight-1+Origin.y; y<=infoPtr->rcList.bottom; y+=itemheight)
{
rcItem.bottom = rcItem.top = y;
TRACE("horz rcItem=%s\n", wine_dbgstr_rect(&rcItem));
MoveToEx (hdc, rcItem.left, rcItem.top, NULL);
LineTo (hdc, rcItem.right, rcItem.top);
}
SelectObject( hdc, hOldPen );
DeleteObject( hPen );
}
}
/***
* DESCRIPTION:
* Draws listview items when in list display mode.
@ -4175,6 +4261,12 @@ static void LISTVIEW_Refresh(LISTVIEW_INFO *infoPtr, HDC hdc, const RECT *prcEra
iterator_destroy(&i);
enddraw:
/* For LVS_EX_GRIDLINES go and draw lines */
/* This includes the case where there were *no* items */
if ((infoPtr->dwStyle & LVS_TYPEMASK) == LVS_REPORT &&
infoPtr->dwLvExStyle & LVS_EX_GRIDLINES)
LISTVIEW_RefreshReportGrid(infoPtr, hdc);
if (cdmode & CDRF_NOTIFYPOSTPAINT)
notify_postpaint(infoPtr, &nmlvcd);