1370 lines
46 KiB
C
1370 lines
46 KiB
C
/*
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* USER text functions
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*
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* Copyright 1993, 1994 Alexandre Julliard
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* Copyright 2002 Bill Medland
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*
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* Contains
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* 1. DrawText functions
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* 2. GrayString functions
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* 3. TabbedText functions
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*/
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#include <string.h>
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#include <assert.h>
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#include "windef.h"
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#include "wingdi.h"
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#include "wine/winuser16.h"
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#include "wine/unicode.h"
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#include "winbase.h"
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#include "winerror.h"
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#include "winnls.h"
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#include "user.h"
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#include "debugtools.h"
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DEFAULT_DEBUG_CHANNEL(text);
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/*********************************************************************
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*
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* DrawText functions
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*
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* Design issues
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* How many buffers to use
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* While processing in DrawText there are potentially three different forms
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* of the text that need to be held. How are they best held?
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* 1. The original text is needed, of course, to see what to display.
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* 2. The text that will be returned to the user if the DT_MODIFYSTRING is
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* in effect.
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* 3. The buffered text that is about to be displayed e.g. the current line.
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* Typically this will exclude the ampersands used for prefixing etc.
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*
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* Complications.
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* a. If the buffered text to be displayed includes the ampersands then
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* we will need special measurement and draw functions that will ignore
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* the ampersands (e.g. by copying to a buffer without the prefix and
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* then using the normal forms). This may involve less space but may
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* require more processing. e.g. since a line containing tabs may
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* contain several underlined characters either we need to carry around
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* a list of prefix locations or we may need to locate them several
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* times.
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* b. If we actually directly modify the "original text" as we go then we
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* will need some special "caching" to handle the fact that when we
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* ellipsify the text the ellipsis may modify the next line of text,
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* which we have not yet processed. (e.g. ellipsification of a W at the
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* end of a line will overwrite the W, the \n and the first character of
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* the next line, and a \0 will overwrite the second. Try it!!)
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*
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* Option 1. Three separate storages. (To be implemented)
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* If DT_MODIFYSTRING is in effect then allocate an extra buffer to hold
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* the edited string in some form, either as the string itself or as some
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* sort of "edit list" to be applied just before returning.
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* Use a buffer that holds the ellipsified current line sans ampersands
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* and accept the need occasionally to recalculate the prefixes (if
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* DT_EXPANDTABS and not DT_NOPREFIX and not DT_HIDEPREFIX)
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*/
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#define TAB 9
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#define LF 10
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#define CR 13
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#define SPACE 32
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#define PREFIX 38
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#define FORWARD_SLASH '/'
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#define BACK_SLASH '\\'
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static const WCHAR ELLIPSISW[] = {'.','.','.', 0};
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/* These will have to go into a structure to be passed around rather than
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* sitting in static memory
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*/
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static int tabwidth;
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static int prefix_offset;
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static int len_before_ellipsis, len_ellipsis, len_under_ellipsis,
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len_after_ellipsis;
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/*********************************************************************
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* TEXT_Ellipsify (static)
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*
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* Add an ellipsis to the end of the given string whilst ensuring it fits.
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*
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* If the ellipsis alone doesn't fit then it will be returned anyway.
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*
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* See Also TEXT_PathEllipsify
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*
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* Arguments
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* hdc [in] The handle to the DC that defines the font.
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* str [in/out] The string that needs to be modified.
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* max_str [in] The dimension of str (number of WCHAR).
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* len_str [in/out] The number of characters in str
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* width [in] The maximum width permitted (in logical coordinates)
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* size [out] The dimensions of the text
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* modstr [out] The modified form of the string, to be returned to the
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* calling program. It is assumed that the caller has
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* made sufficient space available so we don't need to
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* know the size of the space. This pointer may be NULL if
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* the modified string is not required.
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* len_before [out] The number of characters before the ellipsis.
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* len_ellip [out] The number of characters in the ellipsis.
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*
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* See for example Microsoft article Q249678.
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*
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* For now we will simply use three dots rather than worrying about whether
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* the font contains an explicit ellipsis character.
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*/
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static void TEXT_Ellipsify (HDC hdc, WCHAR *str, unsigned int max_len,
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unsigned int *len_str, int width, SIZE *size,
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WCHAR *modstr,
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int *len_before, int *len_ellip)
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{
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unsigned int len_ellipsis;
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len_ellipsis = strlenW (ELLIPSISW);
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if (len_ellipsis > max_len) len_ellipsis = max_len;
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if (*len_str > max_len - len_ellipsis)
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*len_str = max_len - len_ellipsis;
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for ( ; ; )
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{
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strncpyW (str + *len_str, ELLIPSISW, len_ellipsis);
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if (!GetTextExtentExPointW (hdc, str, *len_str + len_ellipsis, width,
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NULL, NULL, size)) break;
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if (!*len_str || size->cx <= width) break;
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(*len_str)--;
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}
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*len_ellip = len_ellipsis;
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*len_before = *len_str;
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*len_str += len_ellipsis;
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if (modstr)
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{
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strncpyW (modstr, str, *len_str);
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*(str+*len_str) = '\0';
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}
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}
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/*********************************************************************
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* TEXT_PathEllipsify (static)
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*
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* Add an ellipsis to the provided string in order to make it fit within
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* the width. The ellipsis is added as specified for the DT_PATH_ELLIPSIS
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* flag.
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*
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* See Also TEXT_Ellipsify
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*
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* Arguments
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* hdc [in] The handle to the DC that defines the font.
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* str [in/out] The string that needs to be modified
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* max_str [in] The dimension of str (number of WCHAR).
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* len_str [in/out] The number of characters in str
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* width [in] The maximum width permitted (in logical coordinates)
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* size [out] The dimensions of the text
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* modstr [out] The modified form of the string, to be returned to the
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* calling program. It is assumed that the caller has
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* made sufficient space available so we don't need to
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* know the size of the space. This pointer may be NULL if
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* the modified string is not required.
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* len_before [out] The number of characters before the ellipsis.
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* len_ellip [out] The number of characters in the ellipsis.
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* len_under [out] The number of characters replaced by the ellipsis.
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* len_after [out] The number of characters after the ellipsis.
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*
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* For now we will simply use three dots rather than worrying about whether
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* the font contains an explicit ellipsis character.
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*
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* The following applies, I think to Win95. We will need to extend it for
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* Win98 which can have both path and end ellipsis at the same time (e.g.
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* C:\MyLongFileName.Txt becomes ...\MyLongFileN...)
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*
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* The resulting string consists of as much as possible of the following:
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* 1. The ellipsis itself
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* 2. The last \ or / of the string (if any)
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* 3. Everything after the last \ or / of the string (if any) or the whole
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* string if there is no / or \. I believe that under Win95 this would
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* include everything even though some might be clipped off the end whereas
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* under Win98 that might be ellipsified too. (Not yet implemented). Yet
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* to be investigated is whether this would include wordbreaking if the
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* filename is more than 1 word and splitting if DT_EDITCONTROL was in
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* effect. (If DT_EDITCONTROL is in effect then on occasions text will be
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* broken within words).
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* 4. All the stuff before the / or \, which is placed before the ellipsis.
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*/
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static void TEXT_PathEllipsify (HDC hdc, WCHAR *str, unsigned int max_len,
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unsigned int *len_str, int width, SIZE *size,
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WCHAR *modstr,
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int *len_before, int *len_ellip, int *len_under,
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int *len_after)
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{
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int len_ellipsis;
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int len_trailing;
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WCHAR *lastBkSlash, *lastFwdSlash, *lastSlash;
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len_ellipsis = strlenW (ELLIPSISW);
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if (!max_len) return;
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if (len_ellipsis >= max_len) len_ellipsis = max_len - 1;
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if (*len_str + len_ellipsis >= max_len)
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*len_str = max_len - len_ellipsis-1;
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/* Hopefully this will never happen, otherwise it would probably lose
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* the wrong character
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*/
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str[*len_str] = '\0'; /* to simplify things */
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lastBkSlash = strrchrW (str, BACK_SLASH);
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lastFwdSlash = strrchrW (str, FORWARD_SLASH);
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lastSlash = lastBkSlash > lastFwdSlash ? lastBkSlash : lastFwdSlash;
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if (!lastSlash) lastSlash = str;
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len_trailing = *len_str - (lastSlash - str);
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/* overlap-safe movement to the right */
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memmove (lastSlash+len_ellipsis, lastSlash, len_trailing * sizeof(WCHAR));
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strncpyW (lastSlash, ELLIPSISW, len_ellipsis);
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len_trailing += len_ellipsis;
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/* From this point on lastSlash actually points to the ellipsis in front
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* of the last slash and len_trailing includes the ellipsis
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*/
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*len_under = 0;
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for ( ; ; )
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{
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if (!GetTextExtentExPointW (hdc, str, *len_str + len_ellipsis, width,
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NULL, NULL, size)) break;
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if (lastSlash == str || size->cx <= width) break;
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/* overlap-safe movement to the left */
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memmove (lastSlash-1, lastSlash, len_trailing * sizeof(WCHAR));
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lastSlash--;
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(*len_under)++;
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assert (*len_str);
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(*len_str)--;
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}
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*len_before = lastSlash-str;
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*len_ellip = len_ellipsis;
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*len_after = len_trailing - len_ellipsis;
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*len_str += len_ellipsis;
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if (modstr)
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{
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strncpyW (modstr, str, *len_str);
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*(str+*len_str) = '\0';
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}
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}
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/*********************************************************************
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* TEXT_WordBreak (static)
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*
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* Perform wordbreak processing on the given string
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*
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* Assumes that DT_WORDBREAK has been specified and not all the characters
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* fit. Note that this function should be called when the first character that
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* doesn't fit is a space or tab, so that it can swallow the space(s)
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*
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* Note that the Windows processing has some strange properties. In particular
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* leading and trailing spaces are not stripped except for the first space of a
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* line created by a wordbreak.
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*
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* Arguments
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* hdc [in] The handle to the DC that defines the font.
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* str [in/out] The string that needs to be broken.
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* max_str [in] The dimension of str (number of WCHAR).
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* len_str [in/out] The number of characters in str
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* width [in] The maximum width permitted
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* format [in] The format flags in effect
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* chars_fit [in] The maximum number of characters of str that are already
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* known to fit; chars_fit+1 is known not to fit.
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* chars_used [out] The number of characters of str that have been "used" and
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* do not need to be included in later text. For example this will
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* include any spaces that have been discarded from the start of
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* the next line.
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* size [out] The size of the returned text in logical coordinates
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*
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* Pedantic assumption - Assumes that the text length is monotonically
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* increasing with number of characters (i.e. no weird kernings)
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*
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* Algorithm
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*
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* Work back from the last character that did fit to either a space or the last
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* character of a word, whichever is met first.
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* If there was one or the first character didn't fit then
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* break the line after that character
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* and if the next character is a space then discard it.
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* Suppose there was none (and the first character did fit).
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* If Break Within Word is permitted
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* break the word after the last character that fits (there must be
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* at least one; none is caught earlier).
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* Otherwise
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* discard any trailing space.
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* include the whole word; it may be ellipsified later
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*
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* Break Within Word is permitted under a set of circumstances that are not
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* totally clear yet. Currently our best guess is:
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* If DT_EDITCONTROL is in effect and neither DT_WORD_ELLIPSIS nor
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* DT_PATH_ELLIPSIS is
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*/
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static void TEXT_WordBreak (HDC hdc, WCHAR *str, unsigned int max_str,
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unsigned int *len_str,
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int width, int format, unsigned int chars_fit,
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unsigned int *chars_used, SIZE *size)
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{
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WCHAR *p;
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int word_fits;
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assert (format & DT_WORDBREAK);
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assert (chars_fit < *len_str);
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/* Work back from the last character that did fit to either a space or the
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* last character of a word, whichever is met first.
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*/
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p = str + chars_fit; /* The character that doesn't fit */
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word_fits = TRUE;
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if (!chars_fit)
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; /* we pretend that it fits anyway */
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else if (*p == SPACE) /* chars_fit < *len_str so this is valid */
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p--; /* the word just fitted */
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else
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{
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while (p > str && *(--p) != SPACE)
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;
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word_fits = (p != str || *p == SPACE);
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}
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/* If there was one or the first character didn't fit then */
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if (word_fits)
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{
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/* break the line after that character */
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p++;
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*len_str = p - str;
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/* and if the next character is a space then discard it. */
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*chars_used = *len_str;
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if (*p == SPACE)
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(*chars_used)++;
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}
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/* Suppose there was none. */
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else
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{
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if ((format & (DT_EDITCONTROL | DT_WORD_ELLIPSIS | DT_PATH_ELLIPSIS)) ==
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DT_EDITCONTROL)
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{
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/* break the word after the last character that fits (there must be
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* at least one; none is caught earlier).
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*/
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*len_str = chars_fit;
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*chars_used = chars_fit;
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/* FIXME - possible error. Since the next character is now removed
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* this could make the text longer so that it no longer fits, and
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* so we need a loop to test and shrink.
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*/
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}
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/* Otherwise */
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else
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{
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/* discard any trailing space. */
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const WCHAR *e = str + *len_str;
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p = str + chars_fit;
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while (p < e && *p != SPACE)
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p++;
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*chars_used = p - str;
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if (p < e) /* i.e. loop failed because *p == SPACE */
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(*chars_used)++;
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/* include the whole word; it may be ellipsified later */
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*len_str = p - str;
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/* Possible optimisation; if DT_WORD_ELLIPSIS only use chars_fit+1
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* so that it will be too long
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*/
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}
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}
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/* Remeasure the string */
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GetTextExtentExPointW (hdc, str, *len_str, 0, NULL, NULL, size);
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}
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/*********************************************************************
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* TEXT_SkipChars
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*
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* Skip over the given number of characters, bearing in mind prefix
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* substitution and the fact that a character may take more than one
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* WCHAR (Unicode surrogates are two words long) (and there may have been
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* a trailing &)
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*
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* Parameters
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* new_count [out] The updated count
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* new_str [out] The updated pointer
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* start_count [in] The count of remaining characters corresponding to the
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* start of the string
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* start_str [in] The starting point of the string
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* max [in] The number of characters actually in this segment of the
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* string (the & counts)
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* n [in] The number of characters to skip (if prefix then
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* &c counts as one)
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* prefix [in] Apply prefix substitution
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*
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* Return Values
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* none
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*
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* Remarks
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* There must be at least n characters in the string
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* We need max because the "line" may have ended with a & followed by a tab
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* or newline etc. which we don't want to swallow
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*/
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static void TEXT_SkipChars (int *new_count, const WCHAR **new_str,
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int start_count, const WCHAR *start_str,
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int max, int n, int prefix)
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{
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/* This is specific to wide characters, MSDN doesn't say anything much
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* about Unicode surrogates yet and it isn't clear if _wcsinc will
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* correctly handle them so we'll just do this the easy way for now
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*/
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if (prefix)
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{
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const WCHAR *str_on_entry = start_str;
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assert (max >= n);
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max -= n;
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while (n--)
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if (*start_str++ == PREFIX && max--)
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start_str++;
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else;
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start_count -= (start_str - str_on_entry);
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}
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else
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{
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start_str += n;
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start_count -= n;
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}
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*new_str = start_str;
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*new_count = start_count;
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}
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/*********************************************************************
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* TEXT_Reprefix
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*
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* Reanalyse the text to find the prefixed character. This is called when
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* wordbreaking or ellipsification has shortened the string such that the
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* previously noted prefixed character is no longer visible.
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*
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* Parameters
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* str [in] The original string segment (including all characters)
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* n1 [in] The number of characters visible before the path ellipsis
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* n2 [in] The number of characters replaced by the path ellipsis
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* ne [in] The number of characters in the path ellipsis, ignored if
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* n2 is zero
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* n3 [in] The number of characters visible after the path ellipsis
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*
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* Return Values
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* The prefix offset within the new string segment (the one that contains the
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* ellipses and does not contain the prefix characters) (-1 if none)
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*
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* Remarks
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* We know that n1+n2+n3 must be strictly less than the length of the segment
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* (because otherwise there would be no need to call this function)
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*/
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|
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static int TEXT_Reprefix (const WCHAR *str, unsigned int n1, unsigned int n2,
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unsigned int ne, unsigned int n3)
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{
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int result = -1;
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unsigned int i = 0;
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unsigned int n = n1 + n2 + n3;
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if (!n2) ne = 0;
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while (i < n)
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{
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if (i == n1)
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{
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/* Reached the path ellipsis; jump over it */
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str += n2;
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i += n2;
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if (!n3) break; /* Nothing after the path ellipsis */
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}
|
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if (*str++ == PREFIX)
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{
|
|
result = (i < n1) ? i : i - n2 + ne;
|
|
str++;
|
|
}
|
|
else;
|
|
i++;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/*********************************************************************
|
|
* Returns true if and only if the remainder of the line is a single
|
|
* newline representation or nothing
|
|
*/
|
|
|
|
static int remainder_is_none_or_newline (int num_chars, const WCHAR *str)
|
|
{
|
|
if (!num_chars) return TRUE;
|
|
if (*str != LF && *str != CR) return FALSE;
|
|
if (!--num_chars) return TRUE;
|
|
if (*str == *(str+1)) return FALSE;
|
|
str++;
|
|
if (*str != CR && *str != LF) return FALSE;
|
|
if (--num_chars) return FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
/*********************************************************************
|
|
* Return next line of text from a string.
|
|
*
|
|
* hdc - handle to DC.
|
|
* str - string to parse into lines.
|
|
* count - length of str.
|
|
* dest - destination in which to return line.
|
|
* len - dest buffer size in chars on input, copied length into dest on output.
|
|
* width - maximum width of line in pixels.
|
|
* format - format type passed to DrawText.
|
|
* retsize - returned size of the line in pixels.
|
|
* last_line - TRUE if is the last line that will be processed
|
|
* p_retstr - If DT_MODIFYSTRING this points to a cursor in the buffer in which
|
|
* the return string is built.
|
|
*
|
|
* Returns pointer to next char in str after end of the line
|
|
* or NULL if end of str reached.
|
|
*/
|
|
static const WCHAR *TEXT_NextLineW( HDC hdc, const WCHAR *str, int *count,
|
|
WCHAR *dest, int *len, int width, DWORD format,
|
|
SIZE *retsize, int last_line, WCHAR **p_retstr)
|
|
{
|
|
int i = 0, j = 0;
|
|
int plen = 0;
|
|
SIZE size;
|
|
int maxl = *len;
|
|
int seg_i, seg_count, seg_j;
|
|
int max_seg_width;
|
|
int num_fit;
|
|
int word_broken;
|
|
int line_fits;
|
|
int j_in_seg;
|
|
int ellipsified;
|
|
|
|
/* For each text segment in the line */
|
|
|
|
retsize->cy = 0;
|
|
while (*count)
|
|
{
|
|
|
|
/* Skip any leading tabs */
|
|
|
|
if (str[i] == TAB && (format & DT_EXPANDTABS))
|
|
{
|
|
plen = ((plen/tabwidth)+1)*tabwidth;
|
|
(*count)--; if (j < maxl) dest[j++] = str[i++]; else i++;
|
|
while (*count && str[i] == TAB)
|
|
{
|
|
plen += tabwidth;
|
|
(*count)--; if (j < maxl) dest[j++] = str[i++]; else i++;
|
|
}
|
|
}
|
|
|
|
|
|
/* Now copy as far as the next tab or cr/lf or eos */
|
|
|
|
seg_i = i;
|
|
seg_count = *count;
|
|
seg_j = j;
|
|
|
|
while (*count &&
|
|
(str[i] != TAB || !(format & DT_EXPANDTABS)) &&
|
|
((str[i] != CR && str[i] != LF) || (format & DT_SINGLELINE)))
|
|
{
|
|
if (str[i] == PREFIX && !(format & DT_NOPREFIX) && *count > 1)
|
|
{
|
|
(*count)--, i++; /* Throw away the prefix itself */
|
|
if (str[i] == PREFIX)
|
|
{
|
|
/* Swallow it before we see it again */
|
|
(*count)--; if (j < maxl) dest[j++] = str[i++]; else i++;
|
|
}
|
|
else if (prefix_offset == -1 || prefix_offset >= seg_j)
|
|
{
|
|
prefix_offset = j;
|
|
}
|
|
/* else the previous prefix was in an earlier segment of the
|
|
* line; we will leave it to the drawing code to catch this
|
|
* one.
|
|
*/
|
|
}
|
|
else
|
|
{
|
|
(*count)--; if (j < maxl) dest[j++] = str[i++]; else i++;
|
|
}
|
|
}
|
|
|
|
|
|
/* Measure the whole text segment and possibly WordBreak and
|
|
* ellipsify it
|
|
*/
|
|
|
|
j_in_seg = j - seg_j;
|
|
max_seg_width = width - plen;
|
|
GetTextExtentExPointW (hdc, dest + seg_j, j_in_seg, max_seg_width, &num_fit, NULL, &size);
|
|
|
|
/* The Microsoft handling of various combinations of formats is weird.
|
|
* The following may very easily be incorrect if several formats are
|
|
* combined, and may differ between versions (to say nothing of the
|
|
* several bugs in the Microsoft versions).
|
|
*/
|
|
word_broken = 0;
|
|
line_fits = (num_fit >= j_in_seg);
|
|
if (!line_fits && (format & DT_WORDBREAK))
|
|
{
|
|
const WCHAR *s;
|
|
int chars_used;
|
|
TEXT_WordBreak (hdc, dest+seg_j, maxl-seg_j, &j_in_seg,
|
|
max_seg_width, format, num_fit, &chars_used, &size);
|
|
line_fits = (size.cx <= max_seg_width);
|
|
/* and correct the counts */
|
|
TEXT_SkipChars (count, &s, seg_count, str+seg_i, i-seg_i,
|
|
chars_used, !(format & DT_NOPREFIX));
|
|
i = s - str;
|
|
word_broken = 1;
|
|
}
|
|
len_before_ellipsis = j_in_seg;
|
|
len_under_ellipsis = 0;
|
|
len_after_ellipsis = 0;
|
|
len_ellipsis = 0;
|
|
ellipsified = 0;
|
|
if (!line_fits && (format & DT_PATH_ELLIPSIS))
|
|
{
|
|
TEXT_PathEllipsify (hdc, dest + seg_j, maxl-seg_j, &j_in_seg,
|
|
max_seg_width, &size, *p_retstr, &len_before_ellipsis, &len_ellipsis, &len_under_ellipsis, &len_after_ellipsis);
|
|
line_fits = (size.cx <= max_seg_width);
|
|
ellipsified = 1;
|
|
}
|
|
/* NB we may end up ellipsifying a word-broken or path_ellipsified
|
|
* string */
|
|
if ((!line_fits && (format & DT_WORD_ELLIPSIS)) ||
|
|
((format & DT_END_ELLIPSIS) &&
|
|
((last_line && *count) ||
|
|
(remainder_is_none_or_newline (*count, &str[i]) && !line_fits))))
|
|
{
|
|
int before;
|
|
TEXT_Ellipsify (hdc, dest + seg_j, maxl-seg_j, &j_in_seg,
|
|
max_seg_width, &size, *p_retstr, &before, &len_ellipsis);
|
|
if (before > len_before_ellipsis)
|
|
{
|
|
/* We must have done a path ellipsis too */
|
|
len_after_ellipsis = before - len_before_ellipsis - len_ellipsis;
|
|
}
|
|
else
|
|
{
|
|
len_before_ellipsis = before;
|
|
/* len_after_ellipsis remains as zero as does
|
|
* len_under_ellsipsis
|
|
*/
|
|
}
|
|
line_fits = (size.cx <= max_seg_width);
|
|
ellipsified = 1;
|
|
}
|
|
/* As an optimisation if we have ellipsified and we are expanding
|
|
* tabs and we haven't reached the end of the line we can skip to it
|
|
* now rather than going around the loop again.
|
|
*/
|
|
if ((format & DT_EXPANDTABS) && ellipsified)
|
|
{
|
|
if (format & DT_SINGLELINE)
|
|
*count = 0;
|
|
else
|
|
{
|
|
while ((*count) && str[i] != CR && str[i] != LF)
|
|
{
|
|
(*count)--, i++;
|
|
}
|
|
}
|
|
}
|
|
|
|
j = seg_j + j_in_seg;
|
|
if (prefix_offset >= seg_j + len_before_ellipsis)
|
|
{
|
|
prefix_offset = TEXT_Reprefix (str + seg_i, len_before_ellipsis,
|
|
len_under_ellipsis, len_ellipsis,
|
|
len_after_ellipsis);
|
|
if (prefix_offset != -1)
|
|
prefix_offset += seg_j;
|
|
}
|
|
|
|
plen += size.cx;
|
|
if (size.cy > retsize->cy)
|
|
retsize->cy = size.cy;
|
|
|
|
if (word_broken)
|
|
break;
|
|
else if (!*count)
|
|
break;
|
|
else if (str[i] == CR || str[i] == LF)
|
|
{
|
|
(*count)--, i++;
|
|
if (*count && (str[i] == CR || str[i] == LF) && str[i] != str[i-1])
|
|
{
|
|
(*count)--, i++;
|
|
}
|
|
break;
|
|
}
|
|
/* else it was a Tab and we go around again */
|
|
}
|
|
|
|
retsize->cx = plen;
|
|
*len = j;
|
|
if (*count)
|
|
return (&str[i]);
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* TEXT_DrawUnderscore
|
|
*
|
|
* Draw the underline under the prefixed character
|
|
*
|
|
* Parameters
|
|
* hdc [in] The handle of the DC for drawing
|
|
* x [in] The x location of the line segment (logical coordinates)
|
|
* y [in] The y location of where the underscore should appear
|
|
* (logical coordinates)
|
|
* str [in] The text of the line segment
|
|
* offset [in] The offset of the underscored character within str
|
|
*/
|
|
|
|
static void TEXT_DrawUnderscore (HDC hdc, int x, int y, const WCHAR *str, int offset)
|
|
{
|
|
int prefix_x;
|
|
int prefix_end;
|
|
SIZE size;
|
|
HPEN hpen;
|
|
HPEN oldPen;
|
|
|
|
GetTextExtentPointW (hdc, str, offset, &size);
|
|
prefix_x = x + size.cx;
|
|
GetTextExtentPointW (hdc, str, offset+1, &size);
|
|
prefix_end = x + size.cx - 1;
|
|
/* The above method may eventually be slightly wrong due to kerning etc. */
|
|
|
|
hpen = CreatePen (PS_SOLID, 1, GetTextColor (hdc));
|
|
oldPen = SelectObject (hdc, hpen);
|
|
MoveToEx (hdc, prefix_x, y, NULL);
|
|
LineTo (hdc, prefix_end, y);
|
|
SelectObject (hdc, oldPen);
|
|
DeleteObject (hpen);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* DrawTextExW (USER32.@)
|
|
*
|
|
* The documentation on the extra space required for DT_MODIFYSTRING at MSDN
|
|
* is not quite complete, especially with regard to \0. We will assume that
|
|
* the returned string could have a length of up to i_count+3 and also have
|
|
* a trailing \0 (which would be 4 more than a not-null-terminated string but
|
|
* 3 more than a null-terminated string). If this is not so then increase
|
|
* the allowance in DrawTextExA.
|
|
*/
|
|
#define MAX_STATIC_BUFFER 1024
|
|
INT WINAPI DrawTextExW( HDC hdc, LPWSTR str, INT i_count,
|
|
LPRECT rect, UINT flags, LPDRAWTEXTPARAMS dtp )
|
|
{
|
|
SIZE size;
|
|
const WCHAR *strPtr;
|
|
WCHAR *retstr, *p_retstr;
|
|
size_t size_retstr;
|
|
static WCHAR line[MAX_STATIC_BUFFER];
|
|
int len, lh, count=i_count;
|
|
TEXTMETRICW tm;
|
|
int lmargin = 0, rmargin = 0;
|
|
int x = rect->left, y = rect->top;
|
|
int width = rect->right - rect->left;
|
|
int max_width = 0;
|
|
int last_line;
|
|
|
|
TRACE("%s, %d , [(%d,%d),(%d,%d)]\n", debugstr_wn (str, count), count,
|
|
rect->left, rect->top, rect->right, rect->bottom);
|
|
|
|
if (dtp) TRACE("Params: iTabLength=%d, iLeftMargin=%d, iRightMargin=%d\n",
|
|
dtp->iTabLength, dtp->iLeftMargin, dtp->iRightMargin);
|
|
|
|
if (!str) return 0;
|
|
if (count == -1) count = strlenW(str);
|
|
if (count == 0) return 0;
|
|
strPtr = str;
|
|
|
|
if (flags & DT_SINGLELINE)
|
|
flags &= ~DT_WORDBREAK;
|
|
|
|
GetTextMetricsW(hdc, &tm);
|
|
if (flags & DT_EXTERNALLEADING)
|
|
lh = tm.tmHeight + tm.tmExternalLeading;
|
|
else
|
|
lh = tm.tmHeight;
|
|
|
|
if (dtp)
|
|
{
|
|
lmargin = dtp->iLeftMargin * tm.tmAveCharWidth;
|
|
rmargin = dtp->iRightMargin * tm.tmAveCharWidth;
|
|
if (!(flags & (DT_CENTER | DT_RIGHT)))
|
|
x += lmargin;
|
|
dtp->uiLengthDrawn = 0; /* This param RECEIVES number of chars processed */
|
|
}
|
|
|
|
if (flags & DT_EXPANDTABS)
|
|
{
|
|
int tabstop = ((flags & DT_TABSTOP) && dtp) ? dtp->iTabLength : 8;
|
|
tabwidth = tm.tmAveCharWidth * tabstop;
|
|
}
|
|
|
|
if (flags & DT_CALCRECT) flags |= DT_NOCLIP;
|
|
|
|
if (flags & DT_MODIFYSTRING)
|
|
{
|
|
size_retstr = (count + 4) * sizeof (WCHAR);
|
|
retstr = HeapAlloc(GetProcessHeap(), 0, size_retstr);
|
|
if (!retstr) return 0;
|
|
memcpy (retstr, str, size_retstr);
|
|
}
|
|
else
|
|
{
|
|
size_retstr = 0;
|
|
retstr = NULL;
|
|
}
|
|
p_retstr = retstr;
|
|
|
|
do
|
|
{
|
|
prefix_offset = -1;
|
|
len = MAX_STATIC_BUFFER;
|
|
last_line = !(flags & DT_NOCLIP) && y + ((flags & DT_EDITCONTROL) ? 2*lh-1 : lh) > rect->bottom;
|
|
strPtr = TEXT_NextLineW(hdc, strPtr, &count, line, &len, width, flags, &size, last_line, &p_retstr);
|
|
|
|
if (flags & DT_CENTER) x = (rect->left + rect->right -
|
|
size.cx) / 2;
|
|
else if (flags & DT_RIGHT) x = rect->right - size.cx;
|
|
|
|
if (flags & DT_SINGLELINE)
|
|
{
|
|
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_CALCRECT))
|
|
{
|
|
const WCHAR *str = line;
|
|
int xseg = x;
|
|
while (len)
|
|
{
|
|
int len_seg;
|
|
SIZE size;
|
|
if ((flags & DT_EXPANDTABS))
|
|
{
|
|
const WCHAR *p;
|
|
p = str; while (p < str+len && *p != TAB) p++;
|
|
len_seg = p - str;
|
|
if (len_seg != len && !GetTextExtentPointW(hdc, str, len_seg, &size))
|
|
return 0;
|
|
}
|
|
else
|
|
len_seg = len;
|
|
|
|
if (!ExtTextOutW( hdc, xseg, y,
|
|
((flags & DT_NOCLIP) ? 0 : ETO_CLIPPED) |
|
|
((flags & DT_RTLREADING) ? ETO_RTLREADING : 0),
|
|
rect, str, len_seg, NULL )) return 0;
|
|
if (prefix_offset != -1 && prefix_offset < len_seg)
|
|
{
|
|
TEXT_DrawUnderscore (hdc, xseg, y + tm.tmAscent + 1, str, prefix_offset);
|
|
}
|
|
len -= len_seg;
|
|
str += len_seg;
|
|
if (len)
|
|
{
|
|
assert ((flags & DT_EXPANDTABS) && *str == TAB);
|
|
len--; str++;
|
|
xseg += ((size.cx/tabwidth)+1)*tabwidth;
|
|
if (prefix_offset != -1)
|
|
{
|
|
if (prefix_offset < len_seg)
|
|
{
|
|
/* We have just drawn an underscore; we ought to
|
|
* figure out where the next one is. I am going
|
|
* to leave it for now until I have a better model
|
|
* for the line, which will make reprefixing easier
|
|
*/
|
|
prefix_offset = -1;
|
|
}
|
|
else
|
|
prefix_offset -= len_seg;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (size.cx > max_width)
|
|
max_width = size.cx;
|
|
|
|
y += lh;
|
|
if (dtp)
|
|
dtp->uiLengthDrawn += len;
|
|
}
|
|
while (strPtr && !last_line);
|
|
|
|
if (flags & DT_CALCRECT)
|
|
{
|
|
rect->right = rect->left + max_width;
|
|
rect->bottom = y;
|
|
if (dtp)
|
|
rect->right += lmargin + rmargin;
|
|
}
|
|
if (retstr)
|
|
{
|
|
memcpy (str, retstr, size_retstr);
|
|
HeapFree (GetProcessHeap(), 0, retstr);
|
|
}
|
|
return y - rect->top;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* DrawTextExA (USER32.@)
|
|
*
|
|
* If DT_MODIFYSTRING is specified then there must be room for up to
|
|
* 4 extra characters. We take great care about just how much modified
|
|
* string we return.
|
|
*/
|
|
INT WINAPI DrawTextExA( HDC hdc, LPSTR str, INT count,
|
|
LPRECT rect, UINT flags, LPDRAWTEXTPARAMS dtp )
|
|
{
|
|
WCHAR *wstr;
|
|
WCHAR *p;
|
|
INT ret = 0;
|
|
int i;
|
|
DWORD wcount;
|
|
DWORD wmax;
|
|
DWORD amax;
|
|
|
|
if (count == -1) count = strlen(str);
|
|
if (!count) return 0;
|
|
wcount = MultiByteToWideChar( CP_ACP, 0, str, count, NULL, 0 );
|
|
wmax = wcount;
|
|
amax = count;
|
|
if (flags & DT_MODIFYSTRING)
|
|
{
|
|
wmax += 4;
|
|
amax += 4;
|
|
}
|
|
wstr = HeapAlloc(GetProcessHeap(), 0, wmax * sizeof(WCHAR));
|
|
if (wstr)
|
|
{
|
|
MultiByteToWideChar( CP_ACP, 0, str, count, wstr, wcount );
|
|
if (flags & DT_MODIFYSTRING)
|
|
for (i=4, p=wstr+wcount; i--; p++) *p=0xFFFE;
|
|
/* Initialise the extra characters so that we can see which ones
|
|
* change. U+FFFE is guaranteed to be not a unicode character and
|
|
* so will not be generated by DrawTextEx itself.
|
|
*/
|
|
ret = DrawTextExW( hdc, wstr, wcount, rect, flags, NULL );
|
|
if (flags & DT_MODIFYSTRING)
|
|
{
|
|
/* Unfortunately the returned string may contain multiple \0s
|
|
* and so we need to measure it ourselves.
|
|
*/
|
|
for (i=4, p=wstr+wcount; i-- && *p != 0xFFFE; p++) wcount++;
|
|
WideCharToMultiByte( CP_ACP, 0, wstr, wcount, str, amax, NULL, NULL );
|
|
}
|
|
HeapFree(GetProcessHeap(), 0, wstr);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* DrawTextW (USER32.@)
|
|
*/
|
|
INT WINAPI DrawTextW( HDC hdc, LPCWSTR str, INT count, LPRECT rect, UINT flags )
|
|
{
|
|
DRAWTEXTPARAMS dtp;
|
|
|
|
memset (&dtp, 0, sizeof(dtp));
|
|
if (flags & DT_TABSTOP)
|
|
{
|
|
dtp.iTabLength = (flags >> 8) && 0xff;
|
|
flags &= 0xffff00ff;
|
|
}
|
|
return DrawTextExW(hdc, (LPWSTR)str, count, rect, flags, &dtp);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* DrawTextA (USER32.@)
|
|
*/
|
|
INT WINAPI DrawTextA( HDC hdc, LPCSTR str, INT count, LPRECT rect, UINT flags )
|
|
{
|
|
DRAWTEXTPARAMS dtp;
|
|
|
|
memset (&dtp, 0, sizeof(dtp));
|
|
if (flags & DT_TABSTOP)
|
|
{
|
|
dtp.iTabLength = (flags >> 8) && 0xff;
|
|
flags &= 0xffff00ff;
|
|
}
|
|
return DrawTextExA( hdc, (LPSTR)str, count, rect, flags, &dtp );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* DrawText (USER.85)
|
|
*/
|
|
INT16 WINAPI DrawText16( HDC16 hdc, LPCSTR str, INT16 count, LPRECT16 rect, UINT16 flags )
|
|
{
|
|
INT16 ret;
|
|
|
|
if (rect)
|
|
{
|
|
RECT rect32;
|
|
CONV_RECT16TO32( rect, &rect32 );
|
|
ret = DrawTextA( hdc, str, count, &rect32, flags );
|
|
CONV_RECT32TO16( &rect32, rect );
|
|
}
|
|
else ret = DrawTextA( hdc, str, count, NULL, flags);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
*
|
|
* GrayString functions
|
|
*/
|
|
|
|
/* ### start build ### */
|
|
extern WORD CALLBACK TEXT_CallTo16_word_wlw(GRAYSTRINGPROC16,WORD,LONG,WORD);
|
|
/* ### stop build ### */
|
|
|
|
struct gray_string_info
|
|
{
|
|
GRAYSTRINGPROC16 proc;
|
|
LPARAM param;
|
|
};
|
|
|
|
/* callback for 16-bit gray string proc */
|
|
static BOOL CALLBACK gray_string_callback( HDC hdc, LPARAM param, INT len )
|
|
{
|
|
const struct gray_string_info *info = (struct gray_string_info *)param;
|
|
return TEXT_CallTo16_word_wlw( info->proc, hdc, info->param, len );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* TEXT_GrayString
|
|
*
|
|
* FIXME: The call to 16-bit code only works because the wine GDI is a 16-bit
|
|
* heap and we can guarantee that the handles fit in an INT16. We have to
|
|
* rethink the strategy once the migration to NT handles is complete.
|
|
* We are going to get a lot of code-duplication once this migration is
|
|
* completed...
|
|
*
|
|
*/
|
|
static BOOL TEXT_GrayString(HDC hdc, HBRUSH hb, GRAYSTRINGPROC fn, LPARAM lp, INT len,
|
|
INT x, INT y, INT cx, INT cy, BOOL unicode, BOOL _32bit)
|
|
{
|
|
HBITMAP hbm, hbmsave;
|
|
HBRUSH hbsave;
|
|
HFONT hfsave;
|
|
HDC memdc;
|
|
int slen = len;
|
|
BOOL retval = TRUE;
|
|
COLORREF fg, bg;
|
|
|
|
if(!hdc) return FALSE;
|
|
if (!(memdc = CreateCompatibleDC(hdc))) return FALSE;
|
|
|
|
if(len == 0)
|
|
{
|
|
if(unicode)
|
|
slen = lstrlenW((LPCWSTR)lp);
|
|
else if(_32bit)
|
|
slen = strlen((LPCSTR)lp);
|
|
else
|
|
slen = strlen(MapSL(lp));
|
|
}
|
|
|
|
if((cx == 0 || cy == 0) && slen != -1)
|
|
{
|
|
SIZE s;
|
|
if(unicode)
|
|
GetTextExtentPoint32W(hdc, (LPCWSTR)lp, slen, &s);
|
|
else if(_32bit)
|
|
GetTextExtentPoint32A(hdc, (LPCSTR)lp, slen, &s);
|
|
else
|
|
GetTextExtentPoint32A(hdc, MapSL(lp), slen, &s);
|
|
if(cx == 0) cx = s.cx;
|
|
if(cy == 0) cy = s.cy;
|
|
}
|
|
|
|
hbm = CreateBitmap(cx, cy, 1, 1, NULL);
|
|
hbmsave = (HBITMAP)SelectObject(memdc, hbm);
|
|
hbsave = SelectObject( memdc, GetStockObject(BLACK_BRUSH) );
|
|
PatBlt( memdc, 0, 0, cx, cy, PATCOPY );
|
|
SelectObject( memdc, hbsave );
|
|
SetTextColor(memdc, RGB(255, 255, 255));
|
|
SetBkColor(memdc, RGB(0, 0, 0));
|
|
hfsave = (HFONT)SelectObject(memdc, GetCurrentObject(hdc, OBJ_FONT));
|
|
|
|
if(fn)
|
|
{
|
|
if(_32bit)
|
|
retval = fn(memdc, lp, slen);
|
|
else
|
|
retval = (BOOL)((BOOL16)((GRAYSTRINGPROC16)fn)((HDC16)memdc, lp, (INT16)slen));
|
|
}
|
|
else
|
|
{
|
|
if(unicode)
|
|
TextOutW(memdc, 0, 0, (LPCWSTR)lp, slen);
|
|
else if(_32bit)
|
|
TextOutA(memdc, 0, 0, (LPCSTR)lp, slen);
|
|
else
|
|
TextOutA(memdc, 0, 0, MapSL(lp), slen);
|
|
}
|
|
|
|
SelectObject(memdc, hfsave);
|
|
|
|
/*
|
|
* Windows doc says that the bitmap isn't grayed when len == -1 and
|
|
* the callback function returns FALSE. However, testing this on
|
|
* win95 showed otherwise...
|
|
*/
|
|
#ifdef GRAYSTRING_USING_DOCUMENTED_BEHAVIOUR
|
|
if(retval || len != -1)
|
|
#endif
|
|
{
|
|
hbsave = (HBRUSH)SelectObject(memdc, CACHE_GetPattern55AABrush());
|
|
PatBlt(memdc, 0, 0, cx, cy, 0x000A0329);
|
|
SelectObject(memdc, hbsave);
|
|
}
|
|
|
|
if(hb) hbsave = (HBRUSH)SelectObject(hdc, hb);
|
|
fg = SetTextColor(hdc, RGB(0, 0, 0));
|
|
bg = SetBkColor(hdc, RGB(255, 255, 255));
|
|
BitBlt(hdc, x, y, cx, cy, memdc, 0, 0, 0x00E20746);
|
|
SetTextColor(hdc, fg);
|
|
SetBkColor(hdc, bg);
|
|
if(hb) SelectObject(hdc, hbsave);
|
|
|
|
SelectObject(memdc, hbmsave);
|
|
DeleteObject(hbm);
|
|
DeleteDC(memdc);
|
|
return retval;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GrayString (USER.185)
|
|
*/
|
|
BOOL16 WINAPI GrayString16( HDC16 hdc, HBRUSH16 hbr, GRAYSTRINGPROC16 gsprc,
|
|
LPARAM lParam, INT16 cch, INT16 x, INT16 y,
|
|
INT16 cx, INT16 cy )
|
|
{
|
|
struct gray_string_info info;
|
|
|
|
if (!gsprc) return TEXT_GrayString(hdc, hbr, NULL, lParam, cch, x, y, cx, cy, FALSE, FALSE);
|
|
info.proc = gsprc;
|
|
info.param = lParam;
|
|
return TEXT_GrayString( hdc, hbr, gray_string_callback, (LPARAM)&info,
|
|
cch, x, y, cx, cy, FALSE, FALSE);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GrayStringA (USER32.@)
|
|
*/
|
|
BOOL WINAPI GrayStringA( HDC hdc, HBRUSH hbr, GRAYSTRINGPROC gsprc,
|
|
LPARAM lParam, INT cch, INT x, INT y,
|
|
INT cx, INT cy )
|
|
{
|
|
return TEXT_GrayString(hdc, hbr, gsprc, lParam, cch, x, y, cx, cy,
|
|
FALSE, TRUE);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GrayStringW (USER32.@)
|
|
*/
|
|
BOOL WINAPI GrayStringW( HDC hdc, HBRUSH hbr, GRAYSTRINGPROC gsprc,
|
|
LPARAM lParam, INT cch, INT x, INT y,
|
|
INT cx, INT cy )
|
|
{
|
|
return TEXT_GrayString(hdc, hbr, gsprc, lParam, cch, x, y, cx, cy,
|
|
TRUE, TRUE);
|
|
}
|
|
|
|
/***********************************************************************
|
|
*
|
|
* TabbedText functions
|
|
*/
|
|
|
|
/***********************************************************************
|
|
* TEXT_TabbedTextOut
|
|
*
|
|
* Helper function for TabbedTextOut() and GetTabbedTextExtent().
|
|
* Note: this doesn't work too well for text-alignment modes other
|
|
* than TA_LEFT|TA_TOP. But we want bug-for-bug compatibility :-)
|
|
*/
|
|
static LONG TEXT_TabbedTextOut( HDC hdc, INT x, INT y, LPCSTR lpstr,
|
|
INT count, INT cTabStops, const INT16 *lpTabPos16,
|
|
const INT *lpTabPos32, INT nTabOrg,
|
|
BOOL fDisplayText )
|
|
{
|
|
INT defWidth;
|
|
SIZE extent;
|
|
int i, tabPos = x;
|
|
int start = x;
|
|
|
|
extent.cx = 0;
|
|
extent.cy = 0;
|
|
|
|
if (cTabStops == 1)
|
|
{
|
|
defWidth = lpTabPos32 ? *lpTabPos32 : *lpTabPos16;
|
|
cTabStops = 0;
|
|
}
|
|
else
|
|
{
|
|
TEXTMETRICA tm;
|
|
GetTextMetricsA( hdc, &tm );
|
|
defWidth = 8 * tm.tmAveCharWidth;
|
|
}
|
|
|
|
while (count > 0)
|
|
{
|
|
for (i = 0; i < count; i++)
|
|
if (lpstr[i] == '\t') break;
|
|
GetTextExtentPointA( hdc, lpstr, i, &extent );
|
|
if (lpTabPos32)
|
|
{
|
|
while ((cTabStops > 0) &&
|
|
(nTabOrg + *lpTabPos32 <= x + extent.cx))
|
|
{
|
|
lpTabPos32++;
|
|
cTabStops--;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
while ((cTabStops > 0) &&
|
|
(nTabOrg + *lpTabPos16 <= x + extent.cx))
|
|
{
|
|
lpTabPos16++;
|
|
cTabStops--;
|
|
}
|
|
}
|
|
if (i == count)
|
|
tabPos = x + extent.cx;
|
|
else if (cTabStops > 0)
|
|
tabPos = nTabOrg + (lpTabPos32 ? *lpTabPos32 : *lpTabPos16);
|
|
else
|
|
tabPos = nTabOrg + ((x + extent.cx - nTabOrg) / defWidth + 1) * defWidth;
|
|
if (fDisplayText)
|
|
{
|
|
RECT r;
|
|
r.left = x;
|
|
r.top = y;
|
|
r.right = tabPos;
|
|
r.bottom = y + extent.cy;
|
|
ExtTextOutA( hdc, x, y,
|
|
GetBkMode(hdc) == OPAQUE ? ETO_OPAQUE : 0,
|
|
&r, lpstr, i, NULL );
|
|
}
|
|
x = tabPos;
|
|
count -= i+1;
|
|
lpstr += i+1;
|
|
}
|
|
return MAKELONG(tabPos - start, extent.cy);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* TabbedTextOut (USER.196)
|
|
*/
|
|
LONG WINAPI TabbedTextOut16( HDC16 hdc, INT16 x, INT16 y, LPCSTR lpstr,
|
|
INT16 count, INT16 cTabStops,
|
|
const INT16 *lpTabPos, INT16 nTabOrg )
|
|
{
|
|
TRACE("%04x %d,%d %s %d\n", hdc, x, y, debugstr_an(lpstr,count), count );
|
|
return TEXT_TabbedTextOut( hdc, x, y, lpstr, count, cTabStops,
|
|
lpTabPos, NULL, nTabOrg, TRUE );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* TabbedTextOutA (USER32.@)
|
|
*/
|
|
LONG WINAPI TabbedTextOutA( HDC hdc, INT x, INT y, LPCSTR lpstr, INT count,
|
|
INT cTabStops, const INT *lpTabPos, INT nTabOrg )
|
|
{
|
|
TRACE("%04x %d,%d %s %d\n", hdc, x, y, debugstr_an(lpstr,count), count );
|
|
return TEXT_TabbedTextOut( hdc, x, y, lpstr, count, cTabStops,
|
|
NULL, lpTabPos, nTabOrg, TRUE );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* TabbedTextOutW (USER32.@)
|
|
*/
|
|
LONG WINAPI TabbedTextOutW( HDC hdc, INT x, INT y, LPCWSTR str, INT count,
|
|
INT cTabStops, const INT *lpTabPos, INT nTabOrg )
|
|
{
|
|
LONG ret;
|
|
LPSTR p;
|
|
INT acount;
|
|
UINT codepage = CP_ACP; /* FIXME: get codepage of font charset */
|
|
|
|
acount = WideCharToMultiByte(codepage,0,str,count,NULL,0,NULL,NULL);
|
|
p = HeapAlloc( GetProcessHeap(), 0, acount );
|
|
if(p == NULL) return 0; /* FIXME: is this the correct return on failure */
|
|
acount = WideCharToMultiByte(codepage,0,str,count,p,acount,NULL,NULL);
|
|
ret = TabbedTextOutA( hdc, x, y, p, acount, cTabStops, lpTabPos, nTabOrg );
|
|
HeapFree( GetProcessHeap(), 0, p );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetTabbedTextExtent (USER.197)
|
|
*/
|
|
DWORD WINAPI GetTabbedTextExtent16( HDC16 hdc, LPCSTR lpstr, INT16 count,
|
|
INT16 cTabStops, const INT16 *lpTabPos )
|
|
{
|
|
TRACE("%04x %s %d\n", hdc, debugstr_an(lpstr,count), count );
|
|
return TEXT_TabbedTextOut( hdc, 0, 0, lpstr, count, cTabStops,
|
|
lpTabPos, NULL, 0, FALSE );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetTabbedTextExtentA (USER32.@)
|
|
*/
|
|
DWORD WINAPI GetTabbedTextExtentA( HDC hdc, LPCSTR lpstr, INT count,
|
|
INT cTabStops, const INT *lpTabPos )
|
|
{
|
|
TRACE("%04x %s %d\n", hdc, debugstr_an(lpstr,count), count );
|
|
return TEXT_TabbedTextOut( hdc, 0, 0, lpstr, count, cTabStops,
|
|
NULL, lpTabPos, 0, FALSE );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetTabbedTextExtentW (USER32.@)
|
|
*/
|
|
DWORD WINAPI GetTabbedTextExtentW( HDC hdc, LPCWSTR lpstr, INT count,
|
|
INT cTabStops, const INT *lpTabPos )
|
|
{
|
|
LONG ret;
|
|
LPSTR p;
|
|
INT acount;
|
|
UINT codepage = CP_ACP; /* FIXME: get codepage of font charset */
|
|
|
|
acount = WideCharToMultiByte(codepage,0,lpstr,count,NULL,0,NULL,NULL);
|
|
p = HeapAlloc( GetProcessHeap(), 0, acount );
|
|
if(p == NULL) return 0; /* FIXME: is this the correct failure value? */
|
|
acount = WideCharToMultiByte(codepage,0,lpstr,count,p,acount,NULL,NULL);
|
|
ret = GetTabbedTextExtentA( hdc, p, acount, cTabStops, lpTabPos );
|
|
HeapFree( GetProcessHeap(), 0, p );
|
|
return ret;
|
|
}
|