681 lines
19 KiB
C
681 lines
19 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 <stdlib.h>
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#include <X11/Xatom.h>
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#include "windows.h"
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#include "dc.h"
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#include "gdi.h"
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#include "callback.h"
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#include "metafile.h"
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#include "string32.h"
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#include "stddebug.h"
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/* #define DEBUG_TEXT */
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#include "debug.h"
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#include "xmalloc.h"
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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( HDC 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 (str[i] == CR && str[i+1] == LF)
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i++;
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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))
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{
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prefix_offset = j;
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i++;
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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_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 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 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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dprintf_text(stddeb,"DrawText: '%s', %d , [(%d,%d),(%d,%d)]\n", str,
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count, 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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GetTextMetrics(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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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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HPEN16 hpen = CreatePen( PS_SOLID, 1, GetTextColor(hdc) );
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HPEN16 oldPen = SelectObject( hdc, hpen );
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MoveTo(hdc, x + prefix_x, y + tm.tmAscent + 1 );
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LineTo(hdc, x + prefix_end, 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) && !(flags & DT_CALCRECT))
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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 1;
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}
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/***********************************************************************
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* DrawText32A (USER32.163)
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*/
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INT32 DrawText32A( HDC32 hdc, LPCSTR str, INT32 count,
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LPRECT32 rect, UINT32 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 (USER32.166)
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*/
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INT32 DrawText32W( HDC32 hdc, LPCWSTR str, INT32 count,
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LPRECT32 rect, UINT32 flags )
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{
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char *p = STRING32_DupUniToAnsi( str );
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INT32 ret = DrawText32A( hdc, p, count, rect, flags );
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free(p);
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return ret;
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}
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/***********************************************************************
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* ExtTextOut16 (GDI.351)
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*/
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BOOL16 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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int dir, ascent, descent, i;
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XCharStruct info;
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XFontStruct *font;
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RECT16 rect;
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc)
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{
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dc = (DC *)GDI_GetObjPtr( hdc, METAFILE_DC_MAGIC );
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if (!dc) return FALSE;
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MF_TextOut( dc, x, y, str, count );
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return TRUE;
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}
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if (!DC_SetupGCForText( dc )) return TRUE;
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font = dc->u.x.font.fstruct;
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dprintf_text(stddeb,"ExtTextOut: hdc=%04x %d,%d '%*.*s', %d flags=%d\n",
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hdc, x, y, count, count, str, count, flags);
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if (lprect != NULL) dprintf_text(stddeb, "\trect=(%d,%d- %d,%d)\n",
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lprect->left, lprect->top,
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lprect->right, lprect->bottom );
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/* Setup coordinates */
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if (dc->w.textAlign & TA_UPDATECP)
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{
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x = dc->w.CursPosX;
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y = dc->w.CursPosY;
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}
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x = XLPTODP( dc, x );
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y = YLPTODP( dc, y );
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if (flags & (ETO_OPAQUE | ETO_CLIPPED)) /* There's a rectangle */
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{
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rect.left = XLPTODP( dc, lprect->left );
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rect.right = XLPTODP( dc, lprect->right );
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rect.top = YLPTODP( dc, lprect->top );
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rect.bottom = YLPTODP( dc, lprect->bottom );
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if (rect.right < rect.left) SWAP_INT( rect.left, rect.right );
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if (rect.bottom < rect.top) SWAP_INT( rect.top, rect.bottom );
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}
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dprintf_text(stddeb,"\treal coord: x=%i, y=%i, rect=(%d,%d-%d,%d)\n",
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x, y, rect.left, rect.top, rect.right, rect.bottom);
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/* Draw the rectangle */
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if (flags & ETO_OPAQUE)
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{
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XSetForeground( display, dc->u.x.gc, dc->w.backgroundPixel );
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XFillRectangle( display, dc->u.x.drawable, dc->u.x.gc,
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dc->w.DCOrgX + rect.left, dc->w.DCOrgY + rect.top,
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rect.right-rect.left, rect.bottom-rect.top );
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}
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if (!count) return TRUE; /* Nothing more to do */
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/* Compute text starting position */
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XTextExtents( font, str, count, &dir, &ascent, &descent, &info );
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info.width += count*dc->w.charExtra + dc->w.breakExtra*dc->w.breakCount;
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if (lpDx) for (i = 0; i < count; i++) info.width += lpDx[i];
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switch( dc->w.textAlign & (TA_LEFT | TA_RIGHT | TA_CENTER) )
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{
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case TA_LEFT:
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if (dc->w.textAlign & TA_UPDATECP)
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dc->w.CursPosX = XDPTOLP( dc, x + info.width );
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break;
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case TA_RIGHT:
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x -= info.width;
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if (dc->w.textAlign & TA_UPDATECP) dc->w.CursPosX = XDPTOLP( dc, x );
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break;
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case TA_CENTER:
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x -= info.width / 2;
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break;
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}
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switch( dc->w.textAlign & (TA_TOP | TA_BOTTOM | TA_BASELINE) )
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{
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case TA_TOP:
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y += font->ascent;
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break;
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case TA_BOTTOM:
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y -= font->descent;
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break;
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case TA_BASELINE:
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break;
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}
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/* Set the clip region */
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if (flags & ETO_CLIPPED)
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{
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SaveVisRgn( hdc );
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IntersectVisRect( hdc, rect.left, rect.top, rect.right, rect.bottom );
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}
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/* Draw the text background if necessary */
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if (dc->w.backgroundMode != TRANSPARENT)
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{
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/* If rectangle is opaque and clipped, do nothing */
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if (!(flags & ETO_CLIPPED) || !(flags & ETO_OPAQUE))
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{
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/* Only draw if rectangle is not opaque or if some */
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/* text is outside the rectangle */
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if (!(flags & ETO_OPAQUE) ||
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(x < rect.left) ||
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(x + info.width >= rect.right) ||
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(y-font->ascent < rect.top) ||
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(y+font->descent >= rect.bottom))
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{
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XSetForeground( display, dc->u.x.gc, dc->w.backgroundPixel );
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XFillRectangle( display, dc->u.x.drawable, dc->u.x.gc,
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dc->w.DCOrgX + x,
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dc->w.DCOrgY + y - font->ascent,
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info.width,
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font->ascent + font->descent );
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}
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}
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}
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/* Draw the text */
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XSetForeground( display, dc->u.x.gc, dc->w.textPixel );
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if (!dc->w.charExtra && !dc->w.breakExtra && !lpDx)
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{
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XDrawString( display, dc->u.x.drawable, dc->u.x.gc,
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dc->w.DCOrgX + x, dc->w.DCOrgY + y, str, count );
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}
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else /* Now the fun begins... */
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{
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XTextItem *items, *pitem;
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items = xmalloc( count * sizeof(XTextItem) );
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for (i = 0, pitem = items; i < count; i++, pitem++)
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{
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pitem->chars = (char *)str + i;
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pitem->nchars = 1;
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pitem->font = None;
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if (i == 0)
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{
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pitem->delta = 0;
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continue; /* First iteration -> no delta */
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}
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pitem->delta = dc->w.charExtra;
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if (str[i] == (char)dc->u.x.font.metrics.tmBreakChar)
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pitem->delta += dc->w.breakExtra;
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if (lpDx)
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{
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INT16 width;
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GetCharWidth( hdc, str[i], str[i], &width );
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pitem->delta += lpDx[i-1] - width;
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}
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}
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XDrawText( display, dc->u.x.drawable, dc->u.x.gc,
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dc->w.DCOrgX + x, dc->w.DCOrgY + y, items, count );
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free( items );
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}
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/* Draw underline and strike-out if needed */
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if (dc->u.x.font.metrics.tmUnderlined)
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{
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long linePos, lineWidth;
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if (!XGetFontProperty( font, XA_UNDERLINE_POSITION, &linePos ))
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linePos = font->descent-1;
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if (!XGetFontProperty( font, XA_UNDERLINE_THICKNESS, &lineWidth ))
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lineWidth = 0;
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else if (lineWidth == 1) lineWidth = 0;
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XSetLineAttributes( display, dc->u.x.gc, lineWidth,
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LineSolid, CapRound, JoinBevel );
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XDrawLine( display, dc->u.x.drawable, dc->u.x.gc,
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dc->w.DCOrgX + x, dc->w.DCOrgY + y + linePos,
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dc->w.DCOrgX + x + info.width, dc->w.DCOrgY + y + linePos );
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}
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if (dc->u.x.font.metrics.tmStruckOut)
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{
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long lineAscent, lineDescent;
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if (!XGetFontProperty( font, XA_STRIKEOUT_ASCENT, &lineAscent ))
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lineAscent = font->ascent / 3;
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if (!XGetFontProperty( font, XA_STRIKEOUT_DESCENT, &lineDescent ))
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lineDescent = -lineAscent;
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XSetLineAttributes( display, dc->u.x.gc, lineAscent + lineDescent,
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LineSolid, CapRound, JoinBevel );
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XDrawLine( display, dc->u.x.drawable, dc->u.x.gc,
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dc->w.DCOrgX + x, dc->w.DCOrgY + y - lineAscent,
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dc->w.DCOrgX + x + info.width, dc->w.DCOrgY + y - lineAscent );
|
|
}
|
|
if (flags & ETO_CLIPPED) RestoreVisRgn( hdc );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* ExtTextOut32A (GDI32.98)
|
|
*/
|
|
BOOL32 ExtTextOut32A( HDC32 hdc, INT32 x, INT32 y, UINT32 flags,
|
|
const RECT32 *lprect, LPCSTR str, UINT32 count,
|
|
const INT32 *lpDx )
|
|
{
|
|
RECT16 rect16;
|
|
|
|
if (lpDx) fprintf( stderr, "ExtTextOut32A: lpDx not implemented\n" );
|
|
if (!lprect)
|
|
return ExtTextOut16( (HDC16)hdc, (INT16)x, (INT16)y, (UINT16)flags,
|
|
NULL, str, (UINT16)count, NULL );
|
|
CONV_RECT32TO16( lprect, &rect16 );
|
|
return ExtTextOut16( (HDC16)hdc, (INT16)x, (INT16)y, (UINT16)flags,
|
|
&rect16, str, (UINT16)count, NULL );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* ExtTextOut32W (GDI32.99)
|
|
*/
|
|
BOOL32 ExtTextOut32W( HDC32 hdc, INT32 x, INT32 y, UINT32 flags,
|
|
const RECT32 *lprect, LPCWSTR str, UINT32 count,
|
|
const INT32 *lpDx )
|
|
{
|
|
char *p = STRING32_DupUniToAnsi( str );
|
|
INT32 ret = ExtTextOut32A( hdc, x, y, flags, lprect, p, count, lpDx );
|
|
free(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 );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GrayString (USER.185)
|
|
*/
|
|
BOOL GrayString(HDC hdc, HBRUSH hbr, FARPROC gsprc, LPARAM lParam,
|
|
INT cch, INT x, INT y, INT cx, INT cy)
|
|
{
|
|
BOOL ret;
|
|
COLORREF current_color;
|
|
|
|
if (!cch) cch = lstrlen16( (LPCSTR)PTR_SEG_TO_LIN(lParam) );
|
|
if (gsprc) return CallGrayStringProc( gsprc, hdc, lParam, cch );
|
|
current_color = GetTextColor( hdc );
|
|
SetTextColor( hdc, GetSysColor(COLOR_GRAYTEXT) );
|
|
ret = TextOut16( hdc, x, y, (LPCSTR)PTR_SEG_TO_LIN(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( HDC hdc, int x, int y, LPSTR lpstr, int count,
|
|
int cTabStops, LPINT16 lpTabPos, int nTabOrg,
|
|
BOOL fDisplayText)
|
|
{
|
|
WORD defWidth;
|
|
DWORD extent = 0;
|
|
int i, tabPos = x;
|
|
int start = x;
|
|
|
|
if (cTabStops == 1)
|
|
{
|
|
defWidth = *lpTabPos;
|
|
cTabStops = 0;
|
|
}
|
|
else
|
|
{
|
|
TEXTMETRIC16 tm;
|
|
GetTextMetrics( 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 );
|
|
while ((cTabStops > 0) && (nTabOrg + *lpTabPos <= x + LOWORD(extent)))
|
|
{
|
|
lpTabPos++;
|
|
cTabStops--;
|
|
}
|
|
if (i == count)
|
|
tabPos = x + LOWORD(extent);
|
|
else if (cTabStops > 0)
|
|
tabPos = nTabOrg + *lpTabPos;
|
|
else
|
|
tabPos = nTabOrg + ((x + LOWORD(extent) - nTabOrg) / defWidth + 1) * defWidth;
|
|
if (fDisplayText)
|
|
{
|
|
RECT16 r;
|
|
SetRect16( &r, x, y, tabPos, y+HIWORD(extent) );
|
|
ExtTextOut16( 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));
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* TabbedTextOut (USER.196)
|
|
*/
|
|
LONG TabbedTextOut( HDC hdc, short x, short y, LPSTR lpstr, short count,
|
|
short cTabStops, LPINT16 lpTabPos, short nTabOrg )
|
|
{
|
|
dprintf_text( stddeb, "TabbedTextOut: %04x %d,%d '%*.*s' %d\n",
|
|
hdc, x, y, count, count, lpstr, count );
|
|
return TEXT_TabbedTextOut( hdc, x, y, lpstr, count, cTabStops,
|
|
lpTabPos, nTabOrg, TRUE );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetTabbedTextExtent (USER.197)
|
|
*/
|
|
DWORD GetTabbedTextExtent( HDC hdc, LPSTR lpstr, int count,
|
|
int cTabStops, LPINT16 lpTabPos )
|
|
{
|
|
dprintf_text( stddeb, "GetTabbedTextExtent: %04x '%*.*s' %d\n",
|
|
hdc, count, count, lpstr, count );
|
|
return TEXT_TabbedTextOut( hdc, 0, 0, lpstr, count, cTabStops,
|
|
lpTabPos, 0, FALSE );
|
|
}
|