/* * text functions * * Copyright 1993, 1994 Alexandre Julliard * */ #include #include "wingdi.h" #include "winuser.h" #include "wine/winuser16.h" #include "dc.h" #include "gdi.h" #include "heap.h" #include "debug.h" #include "cache.h" #include "debugstr.h" #define TAB 9 #define LF 10 #define CR 13 #define SPACE 32 #define PREFIX 38 #define SWAP_INT(a,b) { int t = a; a = b; b = t; } static int tabstop = 8; static int tabwidth; static int spacewidth; static int prefix_offset; static const char *TEXT_NextLine( HDC16 hdc, const char *str, int *count, char *dest, int *len, int width, WORD format) { /* 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 - length of resultant line in dest in chars. * width - maximum width of line in pixels. * format - format type passed to DrawText. * * Returns pointer to next char in str after end of the line * or NULL if end of str reached. */ int i = 0, j = 0, k; int plen = 0; int numspaces; SIZE16 size; int lasttab = 0; int wb_i = 0, wb_j = 0, wb_count = 0; while (*count) { switch (str[i]) { case CR: case LF: if (!(format & DT_SINGLELINE)) { if ((*count > 1) && (str[i] == CR) && (str[i+1] == LF)) { (*count)--; i++; } i++; *len = j; (*count)--; return (&str[i]); } dest[j++] = str[i++]; if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) || (format & DT_WORDBREAK)) { if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size)) return NULL; plen += size.cx; } break; case PREFIX: if (!(format & DT_NOPREFIX) && *count > 1) { if (str[++i] == PREFIX) (*count)--; else { prefix_offset = j; break; } } dest[j++] = str[i++]; if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) || (format & DT_WORDBREAK)) { if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size)) return NULL; plen += size.cx; } break; case TAB: if (format & DT_EXPANDTABS) { wb_i = ++i; wb_j = j; wb_count = *count; if (!GetTextExtentPoint16(hdc, &dest[lasttab], j - lasttab, &size)) return NULL; numspaces = (tabwidth - size.cx) / spacewidth; for (k = 0; k < numspaces; k++) dest[j++] = SPACE; plen += tabwidth - size.cx; lasttab = wb_j + numspaces; } else { dest[j++] = str[i++]; if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) || (format & DT_WORDBREAK)) { if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size)) return NULL; plen += size.cx; } } break; case SPACE: dest[j++] = str[i++]; if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) || (format & DT_WORDBREAK)) { wb_i = i; wb_j = j - 1; wb_count = *count; if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size)) return NULL; plen += size.cx; } break; default: dest[j++] = str[i++]; if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) || (format & DT_WORDBREAK)) { if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size)) return NULL; plen += size.cx; } } (*count)--; if (!(format & DT_NOCLIP) || (format & DT_WORDBREAK)) { if (plen > width) { if (format & DT_WORDBREAK) { if (wb_j) { *len = wb_j; *count = wb_count - 1; return (&str[wb_i]); } } else { *len = j; return (&str[i]); } } } } *len = j; return NULL; } /*********************************************************************** * DrawText16 (USER.85) */ INT16 WINAPI DrawText16( HDC16 hdc, LPCSTR str, INT16 i_count, LPRECT16 rect, UINT16 flags ) { SIZE16 size; const char *strPtr; static char line[1024]; int len, lh, count=i_count; int prefix_x = 0; int prefix_end = 0; TEXTMETRIC16 tm; int x = rect->left, y = rect->top; int width = rect->right - rect->left; int max_width = 0; TRACE(text,"%s, %d , [(%d,%d),(%d,%d)]\n", debugstr_an (str, count), count, rect->left, rect->top, rect->right, rect->bottom); if (count == -1) count = strlen(str); strPtr = str; GetTextMetrics16(hdc, &tm); if (flags & DT_EXTERNALLEADING) lh = tm.tmHeight + tm.tmExternalLeading; else lh = tm.tmHeight; if (flags & DT_TABSTOP) tabstop = flags >> 8; if (flags & DT_EXPANDTABS) { GetTextExtentPoint16(hdc, " ", 1, &size); spacewidth = size.cx; GetTextExtentPoint16(hdc, "o", 1, &size); tabwidth = size.cx * tabstop; } if (flags & DT_CALCRECT) flags |= DT_NOCLIP; do { prefix_offset = -1; strPtr = TEXT_NextLine(hdc, strPtr, &count, line, &len, width, flags); if (prefix_offset != -1) { GetTextExtentPoint16(hdc, line, prefix_offset, &size); prefix_x = size.cx; GetTextExtentPoint16(hdc, line, prefix_offset + 1, &size); prefix_end = size.cx - 1; } if (!GetTextExtentPoint16(hdc, line, len, &size)) return 0; 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)) { if (!ExtTextOut16(hdc, x, y, (flags & DT_NOCLIP) ? 0 : ETO_CLIPPED, rect, line, len, NULL )) return 0; if (prefix_offset != -1) { HPEN hpen = CreatePen( PS_SOLID, 1, GetTextColor(hdc) ); HPEN oldPen = SelectObject( hdc, hpen ); MoveTo16(hdc, x + prefix_x, y + tm.tmAscent + 1 ); LineTo(hdc, x + prefix_end + 1, y + tm.tmAscent + 1 ); SelectObject( hdc, oldPen ); DeleteObject( hpen ); } } else if (size.cx > max_width) max_width = size.cx; y += lh; if (strPtr) { if (!(flags & DT_NOCLIP)) { if (y > rect->bottom - lh) break; } } } while (strPtr); if (flags & DT_CALCRECT) { rect->right = rect->left + max_width; rect->bottom = y; } return y - rect->top; } /*********************************************************************** * DrawText32A (USER32.164) */ INT WINAPI DrawTextA( HDC hdc, LPCSTR str, INT count, LPRECT rect, UINT flags ) { RECT16 rect16; INT16 ret; if (!rect) return DrawText16( (HDC16)hdc, str, (INT16)count, NULL, (UINT16)flags); CONV_RECT32TO16( rect, &rect16 ); ret = DrawText16( (HDC16)hdc, str, (INT16)count, &rect16, (UINT16)flags ); CONV_RECT16TO32( &rect16, rect ); return ret; } /*********************************************************************** * DrawText32W (USER32.167) */ INT WINAPI DrawTextW( HDC hdc, LPCWSTR str, INT count, LPRECT rect, UINT flags ) { LPSTR p = HEAP_strdupWtoA( GetProcessHeap(), 0, str ); INT ret = DrawTextA( hdc, p, count, rect, flags ); HeapFree( GetProcessHeap(), 0, p ); return ret; } /*********************************************************************** * DrawTextEx32A (USER32.165) */ INT WINAPI DrawTextExA( HDC hdc, LPCSTR str, INT count, LPRECT rect, UINT flags, LPDRAWTEXTPARAMS dtp ) { TRACE(text,"(%d,'%s',%d,%p,0x%08x,%p)\n",hdc,str,count,rect,flags,dtp); if(dtp) { FIXME(text,"Ignores params:%d,%d,%d,%d,%d\n",dtp->cbSize, dtp->iTabLength,dtp->iLeftMargin,dtp->iRightMargin, dtp->uiLengthDrawn); } return DrawTextA(hdc,str,count,rect,flags); } /*********************************************************************** * DrawTextEx32W (USER32.166) */ INT WINAPI DrawTextExW( HDC hdc, LPCWSTR str, INT count, LPRECT rect, UINT flags, LPDRAWTEXTPARAMS dtp ) { TRACE(text,"(%d,%p,%d,%p,0x%08x,%p)\n",hdc,str,count,rect,flags,dtp); FIXME(text,"ignores extended functionality\n"); return DrawTextW(hdc,str,count,rect,flags); } /*********************************************************************** * ExtTextOut16 (GDI.351) */ BOOL16 WINAPI ExtTextOut16( HDC16 hdc, INT16 x, INT16 y, UINT16 flags, const RECT16 *lprect, LPCSTR str, UINT16 count, const INT16 *lpDx ) { BOOL ret; int i; RECT rect32; LPINT lpdx32 = NULL; if (lpDx) lpdx32 = (LPINT)HEAP_xalloc( GetProcessHeap(), 0, sizeof(INT)*count ); if (lprect) CONV_RECT16TO32(lprect,&rect32); if (lpdx32) for (i=count;i--;) lpdx32[i]=lpDx[i]; ret = ExtTextOutA(hdc,x,y,flags,lprect?&rect32:NULL,str,count,lpdx32); if (lpdx32) HeapFree( GetProcessHeap(), 0, lpdx32 ); return ret; } /*********************************************************************** * ExtTextOut32A (GDI32.98) */ BOOL WINAPI ExtTextOutA( HDC hdc, INT x, INT y, UINT flags, const RECT *lprect, LPCSTR str, UINT count, const INT *lpDx ) { DC * dc = DC_GetDCPtr( hdc ); return dc && dc->funcs->pExtTextOut && dc->funcs->pExtTextOut(dc,x,y,flags,lprect,str,count,lpDx); } /*********************************************************************** * ExtTextOut32W (GDI32.99) */ BOOL WINAPI ExtTextOutW( HDC hdc, INT x, INT y, UINT flags, const RECT *lprect, LPCWSTR str, UINT count, const INT *lpDx ) { LPSTR p = HEAP_strdupWtoA( GetProcessHeap(), 0, str ); INT ret = ExtTextOutA( hdc, x, y, flags, lprect, p, count, lpDx ); HeapFree( GetProcessHeap(), 0, p ); return ret; } /*********************************************************************** * TextOut16 (GDI.33) */ BOOL16 WINAPI TextOut16( HDC16 hdc, INT16 x, INT16 y, LPCSTR str, INT16 count ) { return ExtTextOut16( hdc, x, y, 0, NULL, str, count, NULL ); } /*********************************************************************** * TextOut32A (GDI32.355) */ BOOL WINAPI TextOutA( HDC hdc, INT x, INT y, LPCSTR str, INT count ) { return ExtTextOutA( hdc, x, y, 0, NULL, str, count, NULL ); } /*********************************************************************** * TextOut32W (GDI32.356) */ BOOL WINAPI TextOutW(HDC hdc, INT x, INT y, LPCWSTR str, INT count) { return ExtTextOutW( hdc, x, y, 0, NULL, str, count, NULL ); } /*********************************************************************** * 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 = CreateCompatibleDC(hdc); int slen = len; BOOL retval = TRUE; RECT r; COLORREF fg, bg; if(!hdc) return FALSE; if(len == 0) { if(unicode) slen = lstrlenW((LPCWSTR)lp); else if(_32bit) slen = lstrlenA((LPCSTR)lp); else slen = lstrlenA((LPCSTR)PTR_SEG_TO_LIN(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, (LPCSTR)PTR_SEG_TO_LIN(lp), slen, &s); if(cx == 0) cx = s.cx; if(cy == 0) cy = s.cy; } r.left = r.top = 0; r.right = cx; r.bottom = cy; hbm = CreateBitmap(cx, cy, 1, 1, NULL); hbmsave = (HBITMAP)SelectObject(memdc, hbm); FillRect(memdc, &r, (HBRUSH)GetStockObject(BLACK_BRUSH)); 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, (LPCSTR)PTR_SEG_TO_LIN(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; } /*********************************************************************** * GrayString16 (USER.185) */ BOOL16 WINAPI GrayString16( HDC16 hdc, HBRUSH16 hbr, GRAYSTRINGPROC16 gsprc, LPARAM lParam, INT16 cch, INT16 x, INT16 y, INT16 cx, INT16 cy ) { return TEXT_GrayString(hdc, hbr, (GRAYSTRINGPROC)gsprc, lParam, cch, x, y, cx, cy, FALSE, FALSE); } /*********************************************************************** * GrayString32A (USER32.315) */ 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); } /*********************************************************************** * GrayString32W (USER32.316) */ 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); } /*********************************************************************** * 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 :-) */ 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; DWORD extent = 0; int i, tabPos = x; int start = x; if (cTabStops == 1) { defWidth = lpTabPos32 ? *lpTabPos32 : *lpTabPos16; cTabStops = 0; } else { TEXTMETRIC16 tm; GetTextMetrics16( hdc, &tm ); defWidth = 8 * tm.tmAveCharWidth; } while (count > 0) { for (i = 0; i < count; i++) if (lpstr[i] == '\t') break; extent = GetTextExtent16( hdc, lpstr, i ); if (lpTabPos32) { while ((cTabStops > 0) && (nTabOrg + *lpTabPos32 <= x + LOWORD(extent))) { lpTabPos32++; cTabStops--; } } else { while ((cTabStops > 0) && (nTabOrg + *lpTabPos16 <= x + LOWORD(extent))) { lpTabPos16++; cTabStops--; } } if (i == count) tabPos = x + LOWORD(extent); else if (cTabStops > 0) tabPos = nTabOrg + (lpTabPos32 ? *lpTabPos32 : *lpTabPos16); else tabPos = nTabOrg + ((x + LOWORD(extent) - nTabOrg) / defWidth + 1) * defWidth; if (fDisplayText) { RECT r; SetRect( &r, x, y, tabPos, y+HIWORD(extent) ); 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, HIWORD(extent)); } /*********************************************************************** * TabbedTextOut16 (USER.196) */ LONG WINAPI TabbedTextOut16( HDC16 hdc, INT16 x, INT16 y, LPCSTR lpstr, INT16 count, INT16 cTabStops, const INT16 *lpTabPos, INT16 nTabOrg ) { TRACE(text, "%04x %d,%d '%.*s' %d\n", hdc, x, y, count, lpstr, count ); return TEXT_TabbedTextOut( hdc, x, y, lpstr, count, cTabStops, lpTabPos, NULL, nTabOrg, TRUE ); } /*********************************************************************** * TabbedTextOut32A (USER32.542) */ LONG WINAPI TabbedTextOutA( HDC hdc, INT x, INT y, LPCSTR lpstr, INT count, INT cTabStops, const INT *lpTabPos, INT nTabOrg ) { TRACE(text, "%04x %d,%d '%.*s' %d\n", hdc, x, y, count, lpstr, count ); return TEXT_TabbedTextOut( hdc, x, y, lpstr, count, cTabStops, NULL, lpTabPos, nTabOrg, TRUE ); } /*********************************************************************** * TabbedTextOut32W (USER32.543) */ LONG WINAPI TabbedTextOutW( HDC hdc, INT x, INT y, LPCWSTR str, INT count, INT cTabStops, const INT *lpTabPos, INT nTabOrg ) { LONG ret; LPSTR p = HEAP_xalloc( GetProcessHeap(), 0, count + 1 ); lstrcpynWtoA( p, str, count + 1 ); ret = TabbedTextOutA( hdc, x, y, p, count, cTabStops, lpTabPos, nTabOrg ); HeapFree( GetProcessHeap(), 0, p ); return ret; } /*********************************************************************** * GetTabbedTextExtent16 (USER.197) */ DWORD WINAPI GetTabbedTextExtent16( HDC16 hdc, LPCSTR lpstr, INT16 count, INT16 cTabStops, const INT16 *lpTabPos ) { TRACE(text, "%04x '%.*s' %d\n", hdc, count, lpstr, count ); return TEXT_TabbedTextOut( hdc, 0, 0, lpstr, count, cTabStops, lpTabPos, NULL, 0, FALSE ); } /*********************************************************************** * GetTabbedTextExtent32A (USER32.293) */ DWORD WINAPI GetTabbedTextExtentA( HDC hdc, LPCSTR lpstr, INT count, INT cTabStops, const INT *lpTabPos ) { TRACE(text, "%04x '%.*s' %d\n", hdc, count, lpstr, count ); return TEXT_TabbedTextOut( hdc, 0, 0, lpstr, count, cTabStops, NULL, lpTabPos, 0, FALSE ); } /*********************************************************************** * GetTabbedTextExtent32W (USER32.294) */ DWORD WINAPI GetTabbedTextExtentW( HDC hdc, LPCWSTR lpstr, INT count, INT cTabStops, const INT *lpTabPos ) { LONG ret; LPSTR p = HEAP_xalloc( GetProcessHeap(), 0, count + 1 ); lstrcpynWtoA( p, lpstr, count + 1 ); ret = GetTabbedTextExtentA( hdc, p, count, cTabStops, lpTabPos ); HeapFree( GetProcessHeap(), 0, p ); return ret; } /*********************************************************************** * GetTextCharset32 [GDI32.226] Gets character set for font in DC * * NOTES * Should it return a UINT32 instead of an INT32? * => YES, as GetTextCharsetInfo returns UINT32 * * RETURNS * Success: Character set identifier * Failure: DEFAULT_CHARSET */ UINT WINAPI GetTextCharset( HDC hdc) /* [in] Handle to device context */ { /* MSDN docs say this is equivalent */ return GetTextCharsetInfo(hdc, NULL, 0); } /*********************************************************************** * GetTextCharset16 [GDI.612] */ UINT16 WINAPI GetTextCharset16(HDC16 hdc) { return (UINT16)GetTextCharset(hdc); } /*********************************************************************** * GetTextCharsetInfo [GDI32.381] Gets character set for font * * NOTES * Should csi be an LPFONTSIGNATURE instead of an LPCHARSETINFO? * Should it return a UINT32 instead of an INT32? * => YES and YES, from win32.hlp from Borland * * RETURNS * Success: Character set identifier * Failure: DEFAULT_CHARSET */ UINT WINAPI GetTextCharsetInfo( HDC hdc, /* [in] Handle to device context */ LPFONTSIGNATURE fs, /* [out] Pointer to struct to receive data */ DWORD flags) /* [in] Reserved - must be 0 */ { HGDIOBJ hFont; UINT charSet = DEFAULT_CHARSET; LOGFONTW lf; CHARSETINFO csinfo; hFont = GetCurrentObject(hdc, OBJ_FONT); if (hFont == 0) return(DEFAULT_CHARSET); if ( GetObjectW(hFont, sizeof(LOGFONTW), &lf) != 0 ) charSet = lf.lfCharSet; if (fs != NULL) { if (!TranslateCharsetInfo((LPDWORD)charSet, &csinfo, TCI_SRCCHARSET)) return (DEFAULT_CHARSET); memcpy(fs, &csinfo.fs, sizeof(FONTSIGNATURE)); } return charSet; }