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Added support DT_PATH_ELLIPSIS, DT_END_ELLIPSIS, and DT_WORD_ELLIPSIS 

flags in DrawText.
This commit is contained in:
Susan Farley 2000-09-22 22:09:11 +00:00 committed by Alexandre Julliard
parent 7096384d14
commit 196daf815e
1 changed files with 97 additions and 0 deletions
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97
dlls/user/text.c
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@ -25,6 +25,10 @@ DEFAULT_DEBUG_CHANNEL(text);
#define SPACE 32
#define PREFIX 38
#define ELLIPSIS "..."
#define FORWARD_SLASH '/'
#define BACK_SLASH '\\'
#define SWAP_INT(a,b) { int t = a; a = b; b = t; }
static int tabstop = 8;
@ -49,6 +53,12 @@ static const char *TEXT_NextLine( HDC hdc, const char *str, int *count,
* or NULL if end of str reached.
*/
/* FIXME:
* GetTextExtentPoint is used to get the width of each character,
* rather than GetCharABCWidth... So the whitespace between
* characters is ignored, and the reported len is too great.
*/
int i = 0, j = 0, k;
int plen = 0;
int numspaces;
@ -227,6 +237,7 @@ INT WINAPI DrawTextA( HDC hdc, LPCSTR str, INT i_count, LPRECT rect, UINT flags
if (!str) return 0;
if (count == -1) count = strlen(str);
if (count == 0) return 0;
strPtr = str;
GetTextMetricsA(hdc, &tm);
@ -271,6 +282,92 @@ INT WINAPI DrawTextA( HDC hdc, LPCSTR str, INT i_count, LPRECT rect, UINT flags
if (flags & DT_VCENTER) y = rect->top +
(rect->bottom - rect->top) / 2 - size.cy / 2;
else if (flags & DT_BOTTOM) y = rect->bottom - size.cy;
if (flags & (DT_PATH_ELLIPSIS | DT_END_ELLIPSIS | DT_WORD_ELLIPSIS))
{
char swapStr[sizeof(line)];
char* fnameDelim = NULL;
int totalLen = i_count >= 0 ? i_count : strlen(str);
if (size.cx > width)
{
int fnameLen = totalLen;
/* allow room for '...' */
count = min(totalLen+3, sizeof(line)-3);
if (flags & DT_WORD_ELLIPSIS)
flags |= DT_WORDBREAK;
if (flags & DT_PATH_ELLIPSIS)
{
char* lastBkSlash = NULL;
char* lastFwdSlash = NULL;
strncpy(line, str, totalLen); line[totalLen] = '\0';
lastBkSlash = strrchr(line, BACK_SLASH);
lastFwdSlash = strrchr(line, FORWARD_SLASH);
fnameDelim = lastFwdSlash ? lastFwdSlash : lastBkSlash;
if (lastBkSlash && lastFwdSlash) /* which is last? */
if (lastBkSlash > lastFwdSlash)
fnameDelim = lastBkSlash;
if (fnameDelim)
fnameLen = &line[totalLen] - fnameDelim;
else
fnameDelim = (char*)str;
strcpy(swapStr, ELLIPSIS);
strncat(swapStr, fnameDelim, fnameLen);
swapStr[fnameLen+3] = '\0';
strncat(swapStr, str, totalLen - fnameLen);
swapStr[totalLen+3] = '\0';
}
else /* DT_END_ELLIPSIS | DT_WORD_ELLIPSIS */
{
strcpy(swapStr, ELLIPSIS);
strncat(swapStr, str, totalLen);
}
TEXT_NextLine(hdc, swapStr, &count, line, &len, width, flags);
/* if only the ELLIPSIS will fit, just let it be clipped */
len = max(3, len);
GetTextExtentPointA(hdc, line, len, &size);
/* FIXME:
* NextLine uses GetTextExtentPoint for each character,
* rather than GetCharABCWidth... So the whitespace between
* characters is ignored in the width measurement, and the
* reported len is too great. To compensate, we must get
* the width of the entire line and adjust len accordingly.
*/
while ((size.cx > width) && (len > 3))
{
line[--len] = '\0';
GetTextExtentPointA(hdc, line, len, &size);
}
if (fnameLen < len-3) /* some of the path will fit */
{
/* put the ELLIPSIS between the path and filename */
strncpy(swapStr, &line[fnameLen+3], len-3-fnameLen);
swapStr[len-3-fnameLen] = '\0';
strcat(swapStr, ELLIPSIS);
strncat(swapStr, &line[3], fnameLen);
}
else
{
/* move the ELLIPSIS to the end */
strncpy(swapStr, &line[3], len-3);
swapStr[len-3] = '\0';
strcat(swapStr, ELLIPSIS);
}
strncpy(line, swapStr, len);
line[len] = '\0';
strPtr = NULL;
}
}
}
if (!(flags & DT_CALCRECT))
{