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SetColumnWidth rewrite: simpler, cleaner code. Bugs squashed.

This commit is contained in:
Dimitrie O. Paun 2002-10-21 19:32:38 +00:00 committed by Alexandre Julliard
parent bf965278b5
commit be0641face
1 changed files with 70 additions and 118 deletions
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188
dlls/comctl32/listview.c
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@ -6106,32 +6106,21 @@ static LRESULT LISTVIEW_SetColumnOrderArray(LISTVIEW_INFO *infoPtr, INT iCount,
*
* PARAMETERS:
* [I] infoPtr : valid pointer to the listview structure
* [I] iCol : column index
* [I] nColumn : column index
* [I] cx : column width
*
* RETURN:
* SUCCESS : TRUE
* FAILURE : FALSE
*/
static BOOL LISTVIEW_SetColumnWidth(LISTVIEW_INFO *infoPtr, INT iCol, INT cx)
static BOOL LISTVIEW_SetColumnWidth(LISTVIEW_INFO *infoPtr, INT nColumn, INT cx)
{
HDITEMW hdi;
LRESULT lret;
LONG lStyle = infoPtr->dwStyle;
UINT uView = lStyle & LVS_TYPEMASK;
HDC hdc;
HFONT header_font;
HFONT old_font;
SIZE size;
WCHAR text_buffer[DISP_TEXT_SIZE];
INT header_item_count;
INT item_index;
INT nLabelWidth;
RECT rcHeader;
LVITEMW lvItem;
UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
WCHAR szDispText[DISP_TEXT_SIZE] = { 0 };
INT max_cx = 0;
HDITEMW hdi;
TRACE("(iCol=%d, cx=%d\n", iCol, cx);
TRACE("(nColumn=%d, cx=%d\n", nColumn, cx);
/* set column width only if in report or list mode */
if (uView != LVS_REPORT && uView != LVS_LIST) return FALSE;
@ -6148,117 +6137,81 @@ static BOOL LISTVIEW_SetColumnWidth(LISTVIEW_INFO *infoPtr, INT iCol, INT cx)
return TRUE;
}
/* FIXME: update COLUMN_INFO */
if (nColumn < 0 || nColumn >= infoPtr->hdpaColumns->nItemCount) return FALSE;
if (cx == LVSCW_AUTOSIZE || (cx == LVSCW_AUTOSIZE_USEHEADER && nColumn < infoPtr->hdpaColumns->nItemCount -1))
{
INT nLabelWidth;
LVITEMW lvItem;
lvItem.mask = LVIF_TEXT;
lvItem.iItem = 0;
lvItem.iSubItem = nColumn;
lvItem.pszText = szDispText;
lvItem.cchTextMax = DISP_TEXT_SIZE;
for (; lvItem.iItem < infoPtr->nItemCount; lvItem.iItem++)
{
if (!LISTVIEW_GetItemW(infoPtr, &lvItem)) continue;
nLabelWidth = LISTVIEW_GetStringWidthT(infoPtr, lvItem.pszText, TRUE);
if (max_cx < nLabelWidth) max_cx = nLabelWidth;
}
if (infoPtr->himlSmall && (nColumn == 0 || (LISTVIEW_GetColumnInfo(infoPtr, nColumn)->fmt & LVCFMT_IMAGE)))
max_cx += infoPtr->iconSize.cx + IMAGE_PADDING;
max_cx += REPORT_MARGINX + TRAILING_PADDING;
}
/* autosize based on listview items width */
if(cx == LVSCW_AUTOSIZE)
{
/* set the width of the column to the width of the widest item */
if (iCol == 0 || uView == LVS_LIST)
{
cx = 0;
for(item_index = 0; item_index < infoPtr->nItemCount; item_index++)
{
nLabelWidth = LISTVIEW_GetLabelWidth(infoPtr, item_index);
cx = (nLabelWidth>cx)?nLabelWidth:cx;
}
if (infoPtr->himlSmall)
cx += infoPtr->iconSize.cx + IMAGE_PADDING;
}
else
{
lvItem.iSubItem = iCol;
lvItem.mask = LVIF_TEXT;
lvItem.pszText = szDispText;
lvItem.cchTextMax = DISP_TEXT_SIZE;
cx = 0;
for(item_index = 0; item_index < infoPtr->nItemCount; item_index++)
{
lvItem.iItem = item_index;
if (!LISTVIEW_GetItemW(infoPtr, &lvItem)) continue;
nLabelWidth = LISTVIEW_GetStringWidthT(infoPtr, lvItem.pszText, TRUE);
cx = (nLabelWidth>cx)?nLabelWidth:cx;
}
}
cx += TRAILING_PADDING;
} /* autosize based on listview header width */
cx = max_cx;
else if(cx == LVSCW_AUTOSIZE_USEHEADER)
{
header_item_count = infoPtr->hdpaColumns->nItemCount;
/* if iCol is the last column make it fill the remainder of the controls width */
if(iCol == (header_item_count - 1)) {
cx = 0;
for(item_index = 0; item_index < (header_item_count - 1); item_index++)
/* if iCol is the last column make it fill the remainder of the controls width */
if(nColumn == infoPtr->hdpaColumns->nItemCount - 1)
{
LISTVIEW_GetHeaderRect(infoPtr, item_index, &rcHeader);
cx += rcHeader.right - rcHeader.left;
}
RECT rcHeader;
POINT Origin;
/* retrieve the layout of the header */
GetWindowRect(infoPtr->hwndHeader, &rcHeader);
LISTVIEW_GetOrigin(infoPtr, &Origin);
LISTVIEW_GetHeaderRect(infoPtr, nColumn, &rcHeader);
cx = (rcHeader.right - rcHeader.left) - cx;
}
else
{
/* Despite what the MS docs say, if this is not the last
column, then MS resizes the column to the width of the
largest text string in the column, including headers
and items. This is different from LVSCW_AUTOSIZE in that
LVSCW_AUTOSIZE ignores the header string length.
*/
cx = infoPtr->rcList.right - Origin.x - rcHeader.left;
}
else
{
/* Despite what the MS docs say, if this is not the last
column, then MS resizes the column to the width of the
largest text string in the column, including headers
and items. This is different from LVSCW_AUTOSIZE in that
LVSCW_AUTOSIZE ignores the header string length. */
cx = 0;
/* retrieve header font */
header_font = SendMessageW(infoPtr->hwndHeader, WM_GETFONT, 0L, 0L);
/* retrieve header text */
hdi.mask = HDI_TEXT;
hdi.cchTextMax = DISP_TEXT_SIZE;
hdi.pszText = szDispText;
if (Header_GetItemW(infoPtr->hwndHeader, nColumn, (LPARAM)&hdi))
{
HDC hdc = GetDC(infoPtr->hwndSelf);
HFONT old_font = SelectObject(hdc, SendMessageW(infoPtr->hwndHeader, WM_GETFONT, 0, 0));
SIZE size;
/* retrieve header text */
hdi.mask = HDI_TEXT;
hdi.cchTextMax = sizeof(text_buffer)/sizeof(text_buffer[0]);
hdi.pszText = text_buffer;
if (GetTextExtentPoint32W(hdc, hdi.pszText, lstrlenW(hdi.pszText), &size))
cx = size.cx;
/* FIXME: Take into account the header image, if one is present */
SelectObject(hdc, old_font);
ReleaseDC(infoPtr->hwndSelf, hdc);
}
cx = max (cx, max_cx);
}
}
Header_GetItemW(infoPtr->hwndHeader, iCol, (LPARAM)(&hdi));
if (cx < 0) return FALSE;
/* determine the width of the text in the header */
hdc = GetDC(infoPtr->hwndSelf);
old_font = SelectObject(hdc, header_font); /* select the font into hdc */
GetTextExtentPoint32W(hdc, text_buffer, lstrlenW(text_buffer), &size);
SelectObject(hdc, old_font); /* restore the old font */
ReleaseDC(infoPtr->hwndSelf, hdc);
lvItem.iSubItem = iCol;
lvItem.mask = LVIF_TEXT;
lvItem.pszText = szDispText;
lvItem.cchTextMax = DISP_TEXT_SIZE;
cx = size.cx;
for(item_index = 0; item_index < infoPtr->nItemCount; item_index++)
{
lvItem.iItem = item_index;
if (!LISTVIEW_GetItemW(infoPtr, &lvItem)) continue;
nLabelWidth = LISTVIEW_GetStringWidthT(infoPtr, lvItem.pszText, TRUE);
nLabelWidth += TRAILING_PADDING;
/* While it is possible for subitems to have icons, even MS messes
up the positioning, so I suspect no applications actually use
them. */
if (item_index == 0 && infoPtr->himlSmall)
nLabelWidth += infoPtr->iconSize.cx + IMAGE_PADDING;
cx = (nLabelWidth>cx)?nLabelWidth:cx;
}
}
}
/* call header to update the column change */
hdi.mask = HDI_WIDTH;
hdi.cxy = cx;
lret = Header_SetItemW(infoPtr->hwndHeader, (WPARAM)iCol, (LPARAM)&hdi);
LISTVIEW_InvalidateList(infoPtr); /* FIXME: optimize */
return lret;
/* call header to update the column change */
hdi.mask = HDI_WIDTH;
hdi.cxy = cx;
TRACE("hdi.cxy=%d\n", hdi.cxy);
return Header_SetItemW(infoPtr->hwndHeader, nColumn, (LPARAM)&hdi);
}
/***
@ -6365,8 +6318,7 @@ static LRESULT LISTVIEW_SetIconSpacing(LISTVIEW_INFO *infoPtr, DWORD spacing)
{
INT cy = HIWORD(spacing), cx = LOWORD(spacing);
DWORD oldspacing = MAKELONG(infoPtr->iconSpacing.cx, infoPtr->iconSpacing.cy);
LONG lStyle = infoPtr->dwStyle;
UINT uView = lStyle & LVS_TYPEMASK;
UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
TRACE("requested=(%d,%d)\n", cx, cy);