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Sweden-Number/objects/text.c

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/*
* 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 WINAPI DrawText16( HDC16 hdc, LPCSTR str, INT16 i_count,
LPRECT16 rect, UINT16 flags )
{
SIZE16 size;
const char *strPtr;
static char line[1024];
int len, lh, count=i_count;
int prefix_x = 0;
int prefix_end = 0;
TEXTMETRIC16 tm;
int x = rect->left, y = rect->top;
int width = rect->right - rect->left;
int max_width = 0;
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 WINAPI 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 WINAPI 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 WINAPI 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 WINAPI 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 WINAPI 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 WINAPI TextOut16( HDC16 hdc, INT16 x, INT16 y, LPCSTR str, INT16 count )
{
return ExtTextOut16( hdc, x, y, 0, NULL, str, count, NULL );
}
/***********************************************************************
* TextOut32A (GDI32.355)
*/
BOOL32 WINAPI 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 WINAPI 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 WINAPI 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 = SetTextColor32( hdc, GetSysColor32(COLOR_GRAYTEXT) );
ret = TextOut16( hdc, x, y, (LPCSTR)PTR_SEG_TO_LIN(lParam), cch );
SetTextColor32( hdc, current_color );
return ret;
}
/***********************************************************************
* GrayString32A (USER32.314)
*/
BOOL32 WINAPI 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 = SetTextColor32( hdc, GetSysColor32(COLOR_GRAYTEXT) );
ret = TextOut32A( hdc, x, y, (LPCSTR)lParam, cch );
SetTextColor32( hdc, current_color );
return ret;
}
/***********************************************************************
* GrayString32W (USER32.315)
*/
BOOL32 WINAPI 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 = SetTextColor32( hdc, GetSysColor32(COLOR_GRAYTEXT) );
ret = TextOut32W( hdc, x, y, (LPCWSTR)lParam, cch );
SetTextColor32( 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 WINAPI 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 WINAPI 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 WINAPI 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 WINAPI 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 WINAPI 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 WINAPI 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;
}
/***********************************************************************
* GetTextCharset (USER32.226) (USER.612)
*/
INT32 WINAPI GetTextCharset32(HDC32 hdc)
{
fprintf(stdnimp,"GetTextCharset(0x%x)\n",hdc);
return DEFAULT_CHARSET; /* FIXME */
}
INT16 WINAPI GetTextCharset16(HDC16 hdc)
{
return GetTextCharset32(hdc);
}
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