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More consistent calculation of line height, scrolls a full item on 

line up/down.
This commit is contained in:
Susan Farley 2000-08-01 22:01:11 +00:00 committed by Alexandre Julliard
parent 176cee7e1d
commit 1da10fdca8
1 changed files with 24 additions and 14 deletions
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38
dlls/comctl32/treeview.c
View File

@ -62,6 +62,8 @@ DEFAULT_DEBUG_CHANNEL(treeview)
#define TREEVIEW_GetInfoPtr(hwnd) \
((TREEVIEW_INFO *) GetWindowLongA( hwnd, 0))
#define FOCUS_BORDER 3
static BOOL
TREEVIEW_SendSimpleNotify (HWND hwnd, UINT code);
static BOOL
@ -1062,6 +1064,8 @@ TREEVIEW_Refresh (HWND hwnd, HDC hdc)
TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
TEXTMETRICA tm;
HBRUSH hbrBk;
HFONT hOldFont;
RECT rect;
INT iItem, indent, x, y, height, itemHeight;
INT viewtop,viewbottom,viewleft,viewright;
@ -1077,14 +1081,14 @@ TREEVIEW_Refresh (HWND hwnd, HDC hdc)
GetClientRect (hwnd, &rect);
if ((rect.left-rect.right ==0) || (rect.top-rect.bottom==0)) return;
if ((rect.left >= rect.right) || (rect.top >= rect.bottom)) return;
infoPtr->cdmode=TREEVIEW_SendCustomDrawNotify(hwnd,CDDS_PREPAINT,hdc,rect);
if (infoPtr->cdmode==CDRF_SKIPDEFAULT) return;
infoPtr->uVisibleHeight= rect.bottom-rect.top;
infoPtr->uVisibleWidth= rect.right-rect.left;
infoPtr->uVisibleHeight= rect.bottom-rect.top + 1;
infoPtr->uVisibleWidth= rect.right-rect.left + 1;
viewtop=infoPtr->cy;
viewbottom=infoPtr->cy + rect.bottom-rect.top;
@ -1103,9 +1107,12 @@ TREEVIEW_Refresh (HWND hwnd, HDC hdc)
if (infoPtr->uItemHeight>itemHeight)
itemHeight=infoPtr->uItemHeight;
// assume that bold and normal fonts have same height
hOldFont = SelectObject (hdc, infoPtr->hBoldFont);
GetTextMetricsA (hdc, &tm);
if ((tm.tmHeight + tm.tmExternalLeading) > itemHeight)
itemHeight=tm.tmHeight + tm.tmExternalLeading;
if ((tm.tmHeight + tm.tmExternalLeading + FOCUS_BORDER) > itemHeight)
itemHeight=tm.tmHeight + tm.tmExternalLeading + FOCUS_BORDER;
SelectObject (hdc, hOldFont);
infoPtr->uRealItemHeight=itemHeight;
@ -1134,12 +1141,12 @@ TREEVIEW_Refresh (HWND hwnd, HDC hdc)
wineItem->rect.left, wineItem->rect.right);
*/
height=itemHeight * wineItem->iIntegral +1;
height=itemHeight * wineItem->iIntegral;
if ((y >= viewtop) && (y <= viewbottom) &&
(x >= viewleft ) && (x <= viewright)) {
wineItem->visible = TRUE;
wineItem->rect.top = y - infoPtr->cy + rect.top;
wineItem->rect.bottom = wineItem->rect.top + height ;
wineItem->rect.bottom = wineItem->rect.top + height-1;
wineItem->rect.left = x - infoPtr->cx + rect.left;
wineItem->rect.right = rect.right;
if (!infoPtr->firstVisible)
@ -3651,7 +3658,7 @@ TREEVIEW_SetFont (HWND hwnd, WPARAM wParam, LPARAM lParam)
hdc = GetDC (0);
hOldFont = SelectObject (hdc, hFont);
GetTextMetricsA (hdc, &tm);
height= tm.tmHeight + tm.tmExternalLeading;
height= tm.tmHeight + tm.tmExternalLeading + FOCUS_BORDER;
if (height>infoPtr->uRealItemHeight)
infoPtr->uRealItemHeight=height;
SelectObject (hdc, hOldFont);
@ -3670,6 +3677,7 @@ TREEVIEW_VScroll (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
WORD nVisibleItems;
int maxHeight;
TRACE("wp %x, lp %lx\n", wParam, lParam);
@ -3682,10 +3690,11 @@ TREEVIEW_VScroll (HWND hwnd, WPARAM wParam, LPARAM lParam)
if (infoPtr->cy < 0) infoPtr->cy=0;
break;
case SB_LINEDOWN:
maxHeight=infoPtr->uTotalHeight-infoPtr->uVisibleHeight;
if (infoPtr->cy == maxHeight) return FALSE;
nVisibleItems = infoPtr->uVisibleHeight / infoPtr->uRealItemHeight;
maxHeight=infoPtr->uTotalHeight - nVisibleItems * infoPtr->uRealItemHeight;
if (infoPtr->cy >= maxHeight) return FALSE;
infoPtr->cy += infoPtr->uRealItemHeight;
if (infoPtr->cy > maxHeight)
if (infoPtr->cy >= maxHeight)
infoPtr->cy = maxHeight;
break;
case SB_PAGEUP:
@ -3694,11 +3703,12 @@ TREEVIEW_VScroll (HWND hwnd, WPARAM wParam, LPARAM lParam)
if (infoPtr->cy < 0) infoPtr->cy=0;
break;
case SB_PAGEDOWN:
maxHeight=infoPtr->uTotalHeight-infoPtr->uVisibleHeight;
nVisibleItems = infoPtr->uVisibleHeight / infoPtr->uRealItemHeight;
maxHeight=infoPtr->uTotalHeight - nVisibleItems * infoPtr->uRealItemHeight;
if (infoPtr->cy == maxHeight) return FALSE;
infoPtr->cy += infoPtr->uVisibleHeight;
if (infoPtr->cy > maxHeight)
infoPtr->cy = maxHeight;
if (infoPtr->cy >= maxHeight)
infoPtr->cy = maxHeight;
break;
case SB_THUMBTRACK:
infoPtr->cy = HIWORD (wParam);