| /* |
| * text functions |
| * |
| * Copyright 1993, 1994 Alexandre Julliard |
| * |
| */ |
| |
| #include <stdlib.h> |
| #include "windows.h" |
| #include "dc.h" |
| #include "gdi.h" |
| #include "heap.h" |
| #include "stddebug.h" |
| /* #define DEBUG_TEXT */ |
| #include "debug.h" |
| #include "xmalloc.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 (str[i] == CR && str[i+1] == LF) |
| 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)) |
| { |
| if (str[++i] != PREFIX) |
| { |
| 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 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; |
| |
| dprintf_text(stddeb,"DrawText: '%s', %d , [(%d,%d),(%d,%d)]\n", str, |
| 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) |
| { |
| HPEN32 hpen = CreatePen32( PS_SOLID, 1, GetTextColor32(hdc) ); |
| HPEN32 oldPen = SelectObject32( hdc, hpen ); |
| MoveTo(hdc, x + prefix_x, y + tm.tmAscent + 1 ); |
| LineTo32(hdc, x + prefix_end, y + tm.tmAscent + 1 ); |
| SelectObject32( hdc, oldPen ); |
| DeleteObject32( 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 (USER32.163) |
| */ |
| INT32 DrawText32A( HDC32 hdc, LPCSTR str, INT32 count, |
| LPRECT32 rect, UINT32 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 (USER32.166) |
| */ |
| INT32 DrawText32W( HDC32 hdc, LPCWSTR str, INT32 count, |
| LPRECT32 rect, UINT32 flags ) |
| { |
| LPSTR p = HEAP_strdupWtoA( GetProcessHeap(), 0, str ); |
| INT32 ret = DrawText32A( hdc, p, count, rect, flags ); |
| HeapFree( GetProcessHeap(), 0, p ); |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * ExtTextOut16 (GDI.351) |
| */ |
| BOOL16 ExtTextOut16( HDC16 hdc, INT16 x, INT16 y, UINT16 flags, |
| const RECT16 *lprect, LPCSTR str, UINT16 count, |
| const INT16 *lpDx ) |
| { |
| BOOL32 ret; |
| int i; |
| RECT32 rect32; |
| LPINT32 lpdx32 = lpDx?(LPINT32)xmalloc(sizeof(INT32)*count):NULL; |
| |
| if (lprect) CONV_RECT16TO32(lprect,&rect32); |
| if (lpdx32) for (i=count;i--;) lpdx32[i]=lpDx[i]; |
| ret = ExtTextOut32A(hdc,x,y,flags,lprect?&rect32:NULL,str,count,lpdx32); |
| if (lpdx32) free(lpdx32); |
| return ret; |
| |
| |
| } |
| |
| |
| /*********************************************************************** |
| * ExtTextOut32A (GDI32.98) |
| */ |
| BOOL32 ExtTextOut32A( HDC32 hdc, INT32 x, INT32 y, UINT32 flags, |
| const RECT32 *lprect, LPCSTR str, UINT32 count, |
| const INT32 *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) |
| */ |
| BOOL32 ExtTextOut32W( HDC32 hdc, INT32 x, INT32 y, UINT32 flags, |
| const RECT32 *lprect, LPCWSTR str, UINT32 count, |
| const INT32 *lpDx ) |
| { |
| LPSTR p = HEAP_strdupWtoA( GetProcessHeap(), 0, str ); |
| INT32 ret = ExtTextOut32A( hdc, x, y, flags, lprect, p, count, lpDx ); |
| HeapFree( GetProcessHeap(), 0, p ); |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * TextOut16 (GDI.33) |
| */ |
| BOOL16 TextOut16( HDC16 hdc, INT16 x, INT16 y, LPCSTR str, INT16 count ) |
| { |
| return ExtTextOut16( hdc, x, y, 0, NULL, str, count, NULL ); |
| } |
| |
| |
| /*********************************************************************** |
| * TextOut32A (GDI32.355) |
| */ |
| BOOL32 TextOut32A( HDC32 hdc, INT32 x, INT32 y, LPCSTR str, INT32 count ) |
| { |
| return ExtTextOut32A( hdc, x, y, 0, NULL, str, count, NULL ); |
| } |
| |
| |
| /*********************************************************************** |
| * TextOut32W (GDI32.356) |
| */ |
| BOOL32 TextOut32W( HDC32 hdc, INT32 x, INT32 y, LPCWSTR str, INT32 count ) |
| { |
| return ExtTextOut32W( hdc, x, y, 0, NULL, str, count, NULL ); |
| } |
| |
| |
| /*********************************************************************** |
| * GrayString16 (USER.185) |
| */ |
| BOOL16 GrayString16( HDC16 hdc, HBRUSH16 hbr, GRAYSTRINGPROC16 gsprc, |
| LPARAM lParam, INT16 cch, INT16 x, INT16 y, |
| INT16 cx, INT16 cy ) |
| { |
| BOOL16 ret; |
| COLORREF current_color; |
| |
| if (!cch) cch = lstrlen16( (LPCSTR)PTR_SEG_TO_LIN(lParam) ); |
| if (gsprc) return gsprc( hdc, lParam, cch ); |
| current_color = GetTextColor32( hdc ); |
| SetTextColor( hdc, GetSysColor32(COLOR_GRAYTEXT) ); |
| ret = TextOut16( hdc, x, y, (LPCSTR)PTR_SEG_TO_LIN(lParam), cch ); |
| SetTextColor( hdc, current_color ); |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * GrayString32A (USER32.314) |
| */ |
| BOOL32 GrayString32A( HDC32 hdc, HBRUSH32 hbr, GRAYSTRINGPROC32 gsprc, |
| LPARAM lParam, INT32 cch, INT32 x, INT32 y, |
| INT32 cx, INT32 cy ) |
| { |
| BOOL32 ret; |
| COLORREF current_color; |
| |
| if (!cch) cch = lstrlen32A( (LPCSTR)lParam ); |
| if (gsprc) return gsprc( hdc, lParam, cch ); |
| current_color = GetTextColor32( hdc ); |
| SetTextColor( hdc, GetSysColor32(COLOR_GRAYTEXT) ); |
| ret = TextOut32A( hdc, x, y, (LPCSTR)lParam, cch ); |
| SetTextColor( hdc, current_color ); |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * GrayString32W (USER32.315) |
| */ |
| BOOL32 GrayString32W( HDC32 hdc, HBRUSH32 hbr, GRAYSTRINGPROC32 gsprc, |
| LPARAM lParam, INT32 cch, INT32 x, INT32 y, |
| INT32 cx, INT32 cy ) |
| { |
| BOOL32 ret; |
| COLORREF current_color; |
| |
| if (!cch) cch = lstrlen32W( (LPCWSTR)lParam ); |
| if (gsprc) return gsprc( hdc, lParam, cch ); |
| current_color = GetTextColor32( hdc ); |
| SetTextColor( hdc, GetSysColor32(COLOR_GRAYTEXT) ); |
| ret = TextOut32W( hdc, x, y, (LPCWSTR)lParam, cch ); |
| SetTextColor( hdc, current_color ); |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * 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( HDC32 hdc, INT32 x, INT32 y, LPCSTR lpstr, |
| INT32 count, INT32 cTabStops, const INT16 *lpTabPos16, |
| const INT32 *lpTabPos32, INT32 nTabOrg, |
| BOOL32 fDisplayText ) |
| { |
| INT32 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 = GetTextExtent( 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) |
| { |
| RECT32 r; |
| SetRect32( &r, x, y, tabPos, y+HIWORD(extent) ); |
| ExtTextOut32A( hdc, x, y, |
| GetBkMode32(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 TabbedTextOut16( HDC16 hdc, INT16 x, INT16 y, LPCSTR lpstr, INT16 count, |
| INT16 cTabStops, const INT16 *lpTabPos, INT16 nTabOrg ) |
| { |
| dprintf_text( stddeb, "TabbedTextOut16: %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 (USER32.541) |
| */ |
| LONG TabbedTextOut32A( HDC32 hdc, INT32 x, INT32 y, LPCSTR lpstr, INT32 count, |
| INT32 cTabStops, const INT32 *lpTabPos, INT32 nTabOrg ) |
| { |
| dprintf_text( stddeb, "TabbedTextOut32A: %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 (USER32.542) |
| */ |
| LONG TabbedTextOut32W( HDC32 hdc, INT32 x, INT32 y, LPCWSTR str, INT32 count, |
| INT32 cTabStops, const INT32 *lpTabPos, INT32 nTabOrg ) |
| { |
| LONG ret; |
| LPSTR p = HEAP_xalloc( GetProcessHeap(), 0, count + 1 ); |
| lstrcpynWtoA( p, str, count + 1 ); |
| ret = TabbedTextOut32A( hdc, x, y, p, count, cTabStops, |
| lpTabPos, nTabOrg ); |
| HeapFree( GetProcessHeap(), 0, p ); |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * GetTabbedTextExtent16 (USER.197) |
| */ |
| DWORD GetTabbedTextExtent16( HDC16 hdc, LPCSTR lpstr, INT16 count, |
| INT16 cTabStops, const INT16 *lpTabPos ) |
| { |
| dprintf_text( stddeb, "GetTabbedTextExtent: %04x '%.*s' %d\n", |
| hdc, count, lpstr, count ); |
| return TEXT_TabbedTextOut( hdc, 0, 0, lpstr, count, cTabStops, |
| lpTabPos, NULL, 0, FALSE ); |
| } |
| |
| |
| /*********************************************************************** |
| * GetTabbedTextExtent32A (USER32.292) |
| */ |
| DWORD GetTabbedTextExtent32A( HDC32 hdc, LPCSTR lpstr, INT32 count, |
| INT32 cTabStops, const INT32 *lpTabPos ) |
| { |
| dprintf_text( stddeb, "GetTabbedTextExtent: %04x '%.*s' %d\n", |
| hdc, count, lpstr, count ); |
| return TEXT_TabbedTextOut( hdc, 0, 0, lpstr, count, cTabStops, |
| NULL, lpTabPos, 0, FALSE ); |
| } |
| |
| |
| /*********************************************************************** |
| * GetTabbedTextExtent32W (USER32.293) |
| */ |
| DWORD GetTabbedTextExtent32W( HDC32 hdc, LPCWSTR lpstr, INT32 count, |
| INT32 cTabStops, const INT32 *lpTabPos ) |
| { |
| LONG ret; |
| LPSTR p = HEAP_xalloc( GetProcessHeap(), 0, count + 1 ); |
| lstrcpynWtoA( p, lpstr, count + 1 ); |
| ret = GetTabbedTextExtent32A( hdc, p, count, cTabStops, lpTabPos ); |
| HeapFree( GetProcessHeap(), 0, p ); |
| return ret; |
| } |
