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785 lines
22 KiB
C
785 lines
22 KiB
C
/*
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* text functions
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*
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* Copyright 1993, 1994 Alexandre Julliard
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*
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*/
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#include <string.h>
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#include "wine/winuser16.h"
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#include "winbase.h"
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#include "winuser.h"
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#include "dc.h"
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#include "gdi.h"
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#include "heap.h"
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#include "debugtools.h"
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#include "cache.h"
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#include "debugstr.h"
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DEFAULT_DEBUG_CHANNEL(text)
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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 SWAP_INT(a,b) { int t = a; a = b; b = t; }
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static int tabstop = 8;
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static int tabwidth;
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static int spacewidth;
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static int prefix_offset;
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static const char *TEXT_NextLine( HDC16 hdc, const char *str, int *count,
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char *dest, int *len, int width, WORD format)
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{
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/* Return next line of text from a string.
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*
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* hdc - handle to DC.
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* str - string to parse into lines.
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* count - length of str.
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* dest - destination in which to return line.
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* len - length of resultant line in dest in chars.
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* width - maximum width of line in pixels.
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* format - format type passed to DrawText.
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*
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* Returns pointer to next char in str after end of the line
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* or NULL if end of str reached.
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*/
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int i = 0, j = 0, k;
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int plen = 0;
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int numspaces;
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SIZE16 size;
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int lasttab = 0;
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int wb_i = 0, wb_j = 0, wb_count = 0;
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while (*count)
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{
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switch (str[i])
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{
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case CR:
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case LF:
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if (!(format & DT_SINGLELINE))
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{
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if ((*count > 1) && (str[i] == CR) && (str[i+1] == LF))
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{
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(*count)--;
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i++;
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}
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i++;
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*len = j;
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(*count)--;
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return (&str[i]);
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}
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dest[j++] = str[i++];
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if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
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(format & DT_WORDBREAK))
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{
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if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
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return NULL;
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plen += size.cx;
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}
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break;
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case PREFIX:
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if (!(format & DT_NOPREFIX) && *count > 1)
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{
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if (str[++i] == PREFIX)
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(*count)--;
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else {
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prefix_offset = j;
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break;
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}
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}
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dest[j++] = str[i++];
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if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
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(format & DT_WORDBREAK))
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{
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if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
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return NULL;
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plen += size.cx;
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}
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break;
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case TAB:
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if (format & DT_EXPANDTABS)
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{
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wb_i = ++i;
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wb_j = j;
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wb_count = *count;
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if (!GetTextExtentPoint16(hdc, &dest[lasttab], j - lasttab,
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&size))
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return NULL;
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numspaces = (tabwidth - size.cx) / spacewidth;
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for (k = 0; k < numspaces; k++)
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dest[j++] = SPACE;
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plen += tabwidth - size.cx;
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lasttab = wb_j + numspaces;
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}
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else
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{
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dest[j++] = str[i++];
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if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
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(format & DT_WORDBREAK))
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{
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if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
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return NULL;
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plen += size.cx;
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}
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}
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break;
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case SPACE:
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dest[j++] = str[i++];
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if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
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(format & DT_WORDBREAK))
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{
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wb_i = i;
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wb_j = j - 1;
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wb_count = *count;
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if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
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return NULL;
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plen += size.cx;
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}
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break;
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default:
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dest[j++] = str[i++];
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if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
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(format & DT_WORDBREAK))
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{
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if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
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return NULL;
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plen += size.cx;
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}
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}
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(*count)--;
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if (!(format & DT_NOCLIP) || (format & DT_WORDBREAK))
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{
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if (plen > width)
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{
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if (format & DT_WORDBREAK)
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{
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if (wb_j)
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{
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*len = wb_j;
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*count = wb_count - 1;
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return (&str[wb_i]);
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}
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}
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else
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{
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*len = j;
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return (&str[i]);
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}
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}
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}
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}
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*len = j;
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return NULL;
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}
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/***********************************************************************
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* DrawText16 (USER.85)
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*/
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INT16 WINAPI DrawText16( HDC16 hdc, LPCSTR str, INT16 i_count,
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LPRECT16 rect, UINT16 flags )
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{
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SIZE16 size;
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const char *strPtr;
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static char line[1024];
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int len, lh, count=i_count;
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int prefix_x = 0;
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int prefix_end = 0;
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TEXTMETRIC16 tm;
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int x = rect->left, y = rect->top;
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int width = rect->right - rect->left;
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int max_width = 0;
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TRACE("%s, %d , [(%d,%d),(%d,%d)]\n",
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debugstr_an (str, count), count,
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rect->left, rect->top, rect->right, rect->bottom);
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if (count == -1) count = strlen(str);
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strPtr = str;
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GetTextMetrics16(hdc, &tm);
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if (flags & DT_EXTERNALLEADING)
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lh = tm.tmHeight + tm.tmExternalLeading;
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else
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lh = tm.tmHeight;
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if (flags & DT_TABSTOP)
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tabstop = flags >> 8;
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if (flags & DT_EXPANDTABS)
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{
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GetTextExtentPoint16(hdc, " ", 1, &size);
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spacewidth = size.cx;
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GetTextExtentPoint16(hdc, "o", 1, &size);
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tabwidth = size.cx * tabstop;
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}
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if (flags & DT_CALCRECT) flags |= DT_NOCLIP;
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do
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{
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prefix_offset = -1;
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strPtr = TEXT_NextLine(hdc, strPtr, &count, line, &len, width, flags);
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if (prefix_offset != -1)
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{
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GetTextExtentPoint16(hdc, line, prefix_offset, &size);
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prefix_x = size.cx;
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GetTextExtentPoint16(hdc, line, prefix_offset + 1, &size);
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prefix_end = size.cx - 1;
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}
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if (!GetTextExtentPoint16(hdc, line, len, &size)) return 0;
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if (flags & DT_CENTER) x = (rect->left + rect->right -
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size.cx) / 2;
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else if (flags & DT_RIGHT) x = rect->right - size.cx;
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if (flags & DT_SINGLELINE)
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{
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if (flags & DT_VCENTER) y = rect->top +
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(rect->bottom - rect->top) / 2 - size.cy / 2;
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else if (flags & DT_BOTTOM) y = rect->bottom - size.cy;
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}
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if (!(flags & DT_CALCRECT))
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{
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if (!ExtTextOut16(hdc, x, y, (flags & DT_NOCLIP) ? 0 : ETO_CLIPPED,
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rect, line, len, NULL )) return 0;
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if (prefix_offset != -1)
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{
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HPEN hpen = CreatePen( PS_SOLID, 1, GetTextColor(hdc) );
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HPEN oldPen = SelectObject( hdc, hpen );
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MoveTo16(hdc, x + prefix_x, y + tm.tmAscent + 1 );
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LineTo(hdc, x + prefix_end + 1, y + tm.tmAscent + 1 );
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SelectObject( hdc, oldPen );
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DeleteObject( hpen );
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}
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}
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else if (size.cx > max_width)
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max_width = size.cx;
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y += lh;
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if (strPtr)
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{
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if (!(flags & DT_NOCLIP))
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{
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if (y > rect->bottom - lh)
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break;
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}
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}
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}
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while (strPtr);
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if (flags & DT_CALCRECT)
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{
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rect->right = rect->left + max_width;
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rect->bottom = y;
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}
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return y - rect->top;
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}
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/***********************************************************************
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* DrawText32A (USER32.164)
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*/
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INT WINAPI DrawTextA( HDC hdc, LPCSTR str, INT count,
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LPRECT rect, UINT flags )
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{
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RECT16 rect16;
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INT16 ret;
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if (!rect)
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return DrawText16( (HDC16)hdc, str, (INT16)count, NULL, (UINT16)flags);
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CONV_RECT32TO16( rect, &rect16 );
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ret = DrawText16( (HDC16)hdc, str, (INT16)count, &rect16, (UINT16)flags );
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CONV_RECT16TO32( &rect16, rect );
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return ret;
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}
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/***********************************************************************
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* DrawText32W (USER32.167)
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*/
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INT WINAPI DrawTextW( HDC hdc, LPCWSTR str, INT count,
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LPRECT rect, UINT flags )
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{
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LPSTR p = HEAP_strdupWtoA( GetProcessHeap(), 0, str );
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INT ret = DrawTextA( hdc, p, count, rect, flags );
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HeapFree( GetProcessHeap(), 0, p );
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return ret;
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}
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/***********************************************************************
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* DrawTextEx32A (USER32.165)
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*/
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INT WINAPI DrawTextExA( HDC hdc, LPCSTR str, INT count,
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LPRECT rect, UINT flags, LPDRAWTEXTPARAMS dtp )
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{
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TRACE("(%d,'%s',%d,%p,0x%08x,%p)\n",hdc,str,count,rect,flags,dtp);
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if(dtp) {
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FIXME("Ignores params:%d,%d,%d,%d,%d\n",dtp->cbSize,
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dtp->iTabLength,dtp->iLeftMargin,dtp->iRightMargin,
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dtp->uiLengthDrawn);
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}
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return DrawTextA(hdc,str,count,rect,flags);
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}
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/***********************************************************************
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* DrawTextEx32W (USER32.166)
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*/
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INT WINAPI DrawTextExW( HDC hdc, LPCWSTR str, INT count,
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LPRECT rect, UINT flags, LPDRAWTEXTPARAMS dtp )
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{
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TRACE("(%d,%p,%d,%p,0x%08x,%p)\n",hdc,str,count,rect,flags,dtp);
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FIXME("ignores extended functionality\n");
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return DrawTextW(hdc,str,count,rect,flags);
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}
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/***********************************************************************
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* ExtTextOut16 (GDI.351)
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*/
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BOOL16 WINAPI ExtTextOut16( HDC16 hdc, INT16 x, INT16 y, UINT16 flags,
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const RECT16 *lprect, LPCSTR str, UINT16 count,
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const INT16 *lpDx )
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{
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BOOL ret;
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int i;
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RECT rect32;
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LPINT lpdx32 = NULL;
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if (lpDx) lpdx32 = (LPINT)HEAP_xalloc( GetProcessHeap(), 0,
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sizeof(INT)*count );
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if (lprect) CONV_RECT16TO32(lprect,&rect32);
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if (lpdx32) for (i=count;i--;) lpdx32[i]=lpDx[i];
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ret = ExtTextOutA(hdc,x,y,flags,lprect?&rect32:NULL,str,count,lpdx32);
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if (lpdx32) HeapFree( GetProcessHeap(), 0, lpdx32 );
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return ret;
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}
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/***********************************************************************
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* ExtTextOut32A (GDI32.98)
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*/
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BOOL WINAPI ExtTextOutA( HDC hdc, INT x, INT y, UINT flags,
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const RECT *lprect, LPCSTR str, UINT count,
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const INT *lpDx )
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{
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DC * dc = DC_GetDCPtr( hdc );
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return dc && dc->funcs->pExtTextOut &&
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dc->funcs->pExtTextOut(dc,x,y,flags,lprect,str,count,lpDx);
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}
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/***********************************************************************
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* ExtTextOut32W (GDI32.99)
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*/
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BOOL WINAPI ExtTextOutW( HDC hdc, INT x, INT y, UINT flags,
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const RECT *lprect, LPCWSTR str, UINT count,
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const INT *lpDx )
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{
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LPSTR p = HEAP_strdupWtoA( GetProcessHeap(), 0, str );
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INT ret = ExtTextOutA( hdc, x, y, flags, lprect, p, count, lpDx );
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HeapFree( GetProcessHeap(), 0, p );
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return ret;
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}
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/***********************************************************************
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* TextOut16 (GDI.33)
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*/
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BOOL16 WINAPI TextOut16( HDC16 hdc, INT16 x, INT16 y, LPCSTR str, INT16 count )
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{
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return ExtTextOut16( hdc, x, y, 0, NULL, str, count, NULL );
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}
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/***********************************************************************
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* TextOut32A (GDI32.355)
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*/
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BOOL WINAPI TextOutA( HDC hdc, INT x, INT y, LPCSTR str, INT count )
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{
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return ExtTextOutA( hdc, x, y, 0, NULL, str, count, NULL );
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}
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/***********************************************************************
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* TextOut32W (GDI32.356)
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*/
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BOOL WINAPI TextOutW(HDC hdc, INT x, INT y, LPCWSTR str, INT count)
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{
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return ExtTextOutW( hdc, x, y, 0, NULL, str, count, NULL );
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}
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/***********************************************************************
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* TEXT_GrayString
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*
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* FIXME: The call to 16-bit code only works because the wine GDI is a 16-bit
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* heap and we can guarantee that the handles fit in an INT16. We have to
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* rethink the strategy once the migration to NT handles is complete.
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* We are going to get a lot of code-duplication once this migration is
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* completed...
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*
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*/
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static BOOL TEXT_GrayString(HDC hdc, HBRUSH hb,
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GRAYSTRINGPROC fn, LPARAM lp, INT len,
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INT x, INT y, INT cx, INT cy,
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BOOL unicode, BOOL _32bit)
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{
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HBITMAP hbm, hbmsave;
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HBRUSH hbsave;
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HFONT hfsave;
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HDC memdc = CreateCompatibleDC(hdc);
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int slen = len;
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BOOL retval = TRUE;
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RECT r;
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COLORREF fg, bg;
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if(!hdc) return FALSE;
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if(len == 0)
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{
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if(unicode)
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slen = lstrlenW((LPCWSTR)lp);
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else if(_32bit)
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slen = lstrlenA((LPCSTR)lp);
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else
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slen = lstrlenA((LPCSTR)PTR_SEG_TO_LIN(lp));
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}
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if((cx == 0 || cy == 0) && slen != -1)
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{
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SIZE s;
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if(unicode)
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GetTextExtentPoint32W(hdc, (LPCWSTR)lp, slen, &s);
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else if(_32bit)
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GetTextExtentPoint32A(hdc, (LPCSTR)lp, slen, &s);
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else
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GetTextExtentPoint32A(hdc, (LPCSTR)PTR_SEG_TO_LIN(lp), slen, &s);
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if(cx == 0) cx = s.cx;
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if(cy == 0) cy = s.cy;
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}
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r.left = r.top = 0;
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r.right = cx;
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r.bottom = cy;
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hbm = CreateBitmap(cx, cy, 1, 1, NULL);
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hbmsave = (HBITMAP)SelectObject(memdc, hbm);
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FillRect(memdc, &r, (HBRUSH)GetStockObject(BLACK_BRUSH));
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SetTextColor(memdc, RGB(255, 255, 255));
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SetBkColor(memdc, RGB(0, 0, 0));
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hfsave = (HFONT)SelectObject(memdc, GetCurrentObject(hdc, OBJ_FONT));
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if(fn)
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if(_32bit)
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retval = fn(memdc, lp, slen);
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else
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retval = (BOOL)((BOOL16)((GRAYSTRINGPROC16)fn)((HDC16)memdc, lp, (INT16)slen));
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else
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if(unicode)
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TextOutW(memdc, 0, 0, (LPCWSTR)lp, slen);
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else if(_32bit)
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TextOutA(memdc, 0, 0, (LPCSTR)lp, slen);
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else
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TextOutA(memdc, 0, 0, (LPCSTR)PTR_SEG_TO_LIN(lp), slen);
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SelectObject(memdc, hfsave);
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/*
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* Windows doc says that the bitmap isn't grayed when len == -1 and
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* the callback function returns FALSE. However, testing this on
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* win95 showed otherwise...
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*/
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#ifdef GRAYSTRING_USING_DOCUMENTED_BEHAVIOUR
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if(retval || len != -1)
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#endif
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{
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hbsave = (HBRUSH)SelectObject(memdc, CACHE_GetPattern55AABrush());
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PatBlt(memdc, 0, 0, cx, cy, 0x000A0329);
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SelectObject(memdc, hbsave);
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}
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if(hb) hbsave = (HBRUSH)SelectObject(hdc, hb);
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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("%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("%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("%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("%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;
|
|
}
|