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Get rid of 'goto's in GetItemMeasures. 

Move LISTVIEW_UpdateLargeItemLabelRect close to where it's used.
This commit is contained in:
Dimitrie O. Paun 2002-10-10 02:56:57 +00:00 committed by Alexandre Julliard
parent cf4670cba2
commit 1fc91d2d65
1 changed files with 183 additions and 182 deletions
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215
dlls/comctl32/listview.c
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@ -1246,6 +1246,105 @@ static void LISTVIEW_UnsupportedStyles(LONG lStyle)
FIXME(" LVS_SORTDESCENDING\n");
}
/***
* DESCRIPTION: [INTERNAL]
* Update the bounding rectangle around the text under a large icon.
* This depends on whether it has the focus or not.
* On entry the rectangle's top, left and right should be set.
* On return the bottom will also be set and the width may have been
* modified.
*
* PARAMETER
* [I] infoPtr : pointer to the listview structure
* [I] nItem : the item for which we are calculating this
* [I/O] rect : the rectangle to be updated
*
* This appears to be weird, even in the Microsoft implementation.
*/
static BOOL LISTVIEW_UpdateLargeItemLabelRect (LISTVIEW_INFO *infoPtr, int nItem, RECT *rect)
{
HDC hdc = GetDC (infoPtr->hwndSelf);
HFONT hOldFont = SelectObject (hdc, infoPtr->hFont);
UINT uFormat = LISTVIEW_DTFLAGS | DT_CALCRECT;
WCHAR szDispText[DISP_TEXT_SIZE] = { '\0' };
RECT rcText = *rect;
RECT rcBack = *rect;
BOOL focused, selected;
int dx, dy, old_wid, new_wid;
LVITEMW lvItem;
TRACE("%s, focus item=%d, cur item=%d\n",
(infoPtr->bFocus) ? "Window has focus" : "Window not focused",
infoPtr->nFocusedItem, nItem);
focused = infoPtr->bFocus && LISTVIEW_GetItemState(infoPtr, nItem, LVIS_FOCUSED);
selected = LISTVIEW_GetItemState(infoPtr, nItem, LVIS_SELECTED);
uFormat |= (focused) ? DT_NOCLIP : DT_WORD_ELLIPSIS | DT_END_ELLIPSIS;
/* We (aim to) display the full text. In Windows 95 it appears to
* calculate the size assuming the specified font and then it draws
* the text in that region with the specified font except scaled to
* 10 point (or the height of the system font or ...). Thus if the
* window has 24 point Helvetica the highlit rectangle will be
* taller than the text and if it is 7 point Helvetica then the text
* will be clipped.
* For now we will simply say that it is the correct size to display
* the text in the specified font.
*/
lvItem.mask = LVIF_TEXT;
lvItem.iItem = nItem;
lvItem.iSubItem = 0;
lvItem.pszText = szDispText;
lvItem.cchTextMax = DISP_TEXT_SIZE;
if (!LISTVIEW_GetItemW(infoPtr, &lvItem)) return FALSE;
InflateRect(&rcText, -2, 0);
DrawTextW (hdc, lvItem.pszText, -1, &rcText, uFormat);
/* Microsoft, in their great wisdom, have decided that the rectangle
* returned by DrawText on DT_CALCRECT will only guarantee the dimension,
* not the location. So we have to do the centring ourselves (and take
* responsibility for agreeing off-by-one consistency with them).
*/
old_wid = rcText.right - rcText.left;
new_wid = rcBack.right - rcBack.left;
dx = rcBack.left - rcText.left + (new_wid-old_wid)/2;
dy = rcBack.top - rcText.top;
OffsetRect (&rcText, dx, dy);
if (focused)
{
rcText.bottom += 2;
InflateRect(&rcText, 2, 0);
}
else /* not focused, may or may not be selected */
{
/*
* We need to have the bottom to be an intergal number of
* text lines (ntmHeight) below text top that is less than
* or equal to the nItemHeight.
*/
INT lh = infoPtr->nItemHeight - infoPtr->iconSize.cy -
ICON_TOP_PADDING - ICON_BOTTOM_PADDING;
INT ih = (lh / infoPtr->ntmHeight) * infoPtr->ntmHeight;
rcText.bottom = min(rcText.bottom, rcText.top + ih);
rcText.bottom += 1;
}
*rect = rcText;
TRACE("%s and %s, bounding rect=(%d,%d)-(%d,%d)\n",
(focused) ? "focused(full text)" : "not focused",
(selected) ? "selected" : "not selected",
rect->left, rect->top, rect->right, rect->bottom);
SelectObject (hdc, hOldFont);
ReleaseDC (infoPtr->hwndSelf, hdc);
return TRUE;
}
/***
* DESCRIPTION: [INTERNAL]
* Compute the rectangles of an item. This is to localize all
@ -1330,7 +1429,8 @@ static BOOL LISTVIEW_GetItemMeasures(LISTVIEW_INFO *infoPtr, INT nItem,
/************************************************************/
/* compute ICON bounding box (ala LVM_GETITEMRECT) */
/************************************************************/
if (!doIcon) goto noicon;
if (doIcon)
{
if (uView == LVS_ICON)
{
Icon.left = Box.left;
@ -1367,12 +1467,13 @@ static BOOL LISTVIEW_GetItemMeasures(LISTVIEW_INFO *infoPtr, INT nItem,
}
if(lprcIcon) *lprcIcon = Icon;
TRACE("hwnd=%x, item=%d, icon=%s\n", infoPtr->hwndSelf, nItem, debugrect(&Icon));
noicon:
}
/************************************************************/
/* compute LABEL bounding box (ala LVM_GETITEMRECT) */
/************************************************************/
if (!doLabel) goto nolabel;
if (doLabel)
{
if (uView == LVS_ICON)
{
INT nLabelWidth;
@ -1411,12 +1512,13 @@ noicon:
if (lprcLabel) *lprcLabel = Label;
TRACE("hwnd=%x, item=%d, label=%s\n", infoPtr->hwndSelf, nItem, debugrect(&Label));
nolabel:
}
/***********************************************************/
/* compute bounds box for the item (ala LVM_GETITEMRECT) */
/***********************************************************/
if (!lprcBounds) goto nobounds;
if (lprcBounds)
{
if (uView == LVS_REPORT)
{
lprcBounds->left = infoPtr->dwLvExStyle & LVS_EX_FULLROWSELECT ? Box.left : Icon.left;
@ -1426,11 +1528,9 @@ nolabel:
lprcBounds->bottom = lprcBounds->top + infoPtr->nItemHeight;
}
else
{
UnionRect(lprcBounds, &Icon, &Label);
}
TRACE("hwnd=%x, item=%d, bounds=%s\n", infoPtr->hwndSelf, nItem, debugrect(lprcBounds));
nobounds:
}
if (oversizedBox) UnionRect(lprcBox, &Box, &Label);
else if (lprcBox) *lprcBox = Box;
@ -4955,105 +5055,6 @@ static BOOL LISTVIEW_GetItemPosition(LISTVIEW_INFO *infoPtr, INT nItem, LPPOINT
}
/***
* DESCRIPTION: [INTERNAL]
* Update the bounding rectangle around the text under a large icon.
* This depends on whether it has the focus or not.
* On entry the rectangle's top, left and right should be set.
* On return the bottom will also be set and the width may have been
* modified.
*
* PARAMETER
* [I] infoPtr : pointer to the listview structure
* [I] nItem : the item for which we are calculating this
* [I/O] rect : the rectangle to be updated
*
* This appears to be weird, even in the Microsoft implementation.
*/
static BOOL LISTVIEW_UpdateLargeItemLabelRect (LISTVIEW_INFO *infoPtr, int nItem, RECT *rect)
{
HDC hdc = GetDC (infoPtr->hwndSelf);
HFONT hOldFont = SelectObject (hdc, infoPtr->hFont);
UINT uFormat = LISTVIEW_DTFLAGS | DT_CALCRECT;
WCHAR szDispText[DISP_TEXT_SIZE] = { '\0' };
RECT rcText = *rect;
RECT rcBack = *rect;
BOOL focused, selected;
int dx, dy, old_wid, new_wid;
LVITEMW lvItem;
TRACE("%s, focus item=%d, cur item=%d\n",
(infoPtr->bFocus) ? "Window has focus" : "Window not focused",
infoPtr->nFocusedItem, nItem);
focused = infoPtr->bFocus && LISTVIEW_GetItemState(infoPtr, nItem, LVIS_FOCUSED);
selected = LISTVIEW_GetItemState(infoPtr, nItem, LVIS_SELECTED);
uFormat |= (focused) ? DT_NOCLIP : DT_WORD_ELLIPSIS | DT_END_ELLIPSIS;
/* We (aim to) display the full text. In Windows 95 it appears to
* calculate the size assuming the specified font and then it draws
* the text in that region with the specified font except scaled to
* 10 point (or the height of the system font or ...). Thus if the
* window has 24 point Helvetica the highlit rectangle will be
* taller than the text and if it is 7 point Helvetica then the text
* will be clipped.
* For now we will simply say that it is the correct size to display
* the text in the specified font.
*/
lvItem.mask = LVIF_TEXT;
lvItem.iItem = nItem;
lvItem.iSubItem = 0;
lvItem.pszText = szDispText;
lvItem.cchTextMax = DISP_TEXT_SIZE;
if (!LISTVIEW_GetItemW(infoPtr, &lvItem)) return FALSE;
InflateRect(&rcText, -2, 0);
DrawTextW (hdc, lvItem.pszText, -1, &rcText, uFormat);
/* Microsoft, in their great wisdom, have decided that the rectangle
* returned by DrawText on DT_CALCRECT will only guarantee the dimension,
* not the location. So we have to do the centring ourselves (and take
* responsibility for agreeing off-by-one consistency with them).
*/
old_wid = rcText.right - rcText.left;
new_wid = rcBack.right - rcBack.left;
dx = rcBack.left - rcText.left + (new_wid-old_wid)/2;
dy = rcBack.top - rcText.top;
OffsetRect (&rcText, dx, dy);
if (focused)
{
rcText.bottom += 2;
InflateRect(&rcText, 2, 0);
}
else /* not focused, may or may not be selected */
{
/*
* We need to have the bottom to be an intergal number of
* text lines (ntmHeight) below text top that is less than
* or equal to the nItemHeight.
*/
INT lh = infoPtr->nItemHeight - infoPtr->iconSize.cy -
ICON_TOP_PADDING - ICON_BOTTOM_PADDING;
INT ih = (lh / infoPtr->ntmHeight) * infoPtr->ntmHeight;
rcText.bottom = min(rcText.bottom, rcText.top + ih);
rcText.bottom += 1;
}
*rect = rcText;
TRACE("%s and %s, bounding rect=(%d,%d)-(%d,%d)\n",
(focused) ? "focused(full text)" : "not focused",
(selected) ? "selected" : "not selected",
rect->left, rect->top, rect->right, rect->bottom);
SelectObject (hdc, hOldFont);
ReleaseDC (infoPtr->hwndSelf, hdc);
return TRUE;
}
/***
* DESCRIPTION:
* Retrieves the bounding rectangle for a listview control item.