wine/dlls/wineps/text.c
2002-05-31 23:06:46 +00:00

266 lines
8 KiB
C

/*
* PostScript driver text functions
*
* Copyright 1998 Huw D M Davies
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <string.h>
#include "gdi.h"
#include "psdrv.h"
#include "wine/debug.h"
#include "winspool.h"
WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
static BOOL PSDRV_Text(PSDRV_PDEVICE *physDev, INT x, INT y, LPCWSTR str, UINT count,
BOOL bDrawBackground, const INT *lpDx);
/***********************************************************************
* PSDRV_ExtTextOut
*/
BOOL PSDRV_ExtTextOut( PSDRV_PDEVICE *physDev, INT x, INT y, UINT flags,
const RECT *lprect, LPCWSTR str, UINT count,
const INT *lpDx )
{
BOOL bResult = TRUE;
BOOL bClipped = FALSE;
BOOL bOpaque = FALSE;
RECT rect;
TRACE("(x=%d, y=%d, flags=0x%08x, str=%s, count=%d, lpDx=%p)\n", x, y,
flags, debugstr_wn(str, count), count, lpDx);
/* write font if not already written */
PSDRV_SetFont(physDev);
/* set clipping and/or draw background */
if ((flags & (ETO_CLIPPED | ETO_OPAQUE)) && (lprect != NULL))
{
rect = *lprect;
LPtoDP( physDev->hdc, (POINT *)&rect, 2 );
PSDRV_WriteGSave(physDev);
PSDRV_WriteRectangle(physDev, rect.left, rect.top, rect.right - rect.left,
rect.bottom - rect.top);
if (flags & ETO_OPAQUE)
{
bOpaque = TRUE;
PSDRV_WriteGSave(physDev);
PSDRV_WriteSetColor(physDev, &physDev->bkColor);
PSDRV_WriteFill(physDev);
PSDRV_WriteGRestore(physDev);
}
if (flags & ETO_CLIPPED)
{
bClipped = TRUE;
PSDRV_WriteClip(physDev);
}
bResult = PSDRV_Text(physDev, x, y, str, count, !(bClipped && bOpaque), lpDx);
PSDRV_WriteGRestore(physDev);
}
else
{
bResult = PSDRV_Text(physDev, x, y, str, count, TRUE, lpDx);
}
return bResult;
}
/***********************************************************************
* PSDRV_Text
*/
static BOOL PSDRV_Text(PSDRV_PDEVICE *physDev, INT x, INT y, LPCWSTR str, UINT count,
BOOL bDrawBackground, const INT *lpDx)
{
LPWSTR strbuf;
SIZE sz;
DC *dc = physDev->dc;
UINT align = GetTextAlign( physDev->hdc );
if (!count)
return TRUE;
strbuf = HeapAlloc( PSDRV_Heap, 0, (count + 1) * sizeof(WCHAR));
if(!strbuf) {
WARN("HeapAlloc failed\n");
return FALSE;
}
if(align & TA_UPDATECP) {
x = dc->CursPosX;
y = dc->CursPosY;
}
x = INTERNAL_XWPTODP(dc, x, y);
y = INTERNAL_YWPTODP(dc, x, y);
GetTextExtentPoint32W(physDev->hdc, str, count, &sz);
if(lpDx) {
SIZE tmpsz;
INT i;
/* Get the width of the last char and add on all the offsets */
GetTextExtentPoint32W(physDev->hdc, str + count - 1, 1, &tmpsz);
for(i = 0; i < count-1; i++)
tmpsz.cx += lpDx[i];
sz.cx = tmpsz.cx; /* sz.cy remains untouched */
}
sz.cx = INTERNAL_XWSTODS(dc, sz.cx);
sz.cy = INTERNAL_YWSTODS(dc, sz.cy);
TRACE("textAlign = %x\n", align);
switch(align & (TA_LEFT | TA_CENTER | TA_RIGHT) ) {
case TA_LEFT:
if(align & TA_UPDATECP) {
dc->CursPosX = INTERNAL_XDPTOWP(dc, x + sz.cx, y);
}
break;
case TA_CENTER:
x -= sz.cx/2;
break;
case TA_RIGHT:
x -= sz.cx;
if(align & TA_UPDATECP) {
dc->CursPosX = INTERNAL_XDPTOWP(dc, x, y);
}
break;
}
switch(align & (TA_TOP | TA_BASELINE | TA_BOTTOM) ) {
case TA_TOP:
y += physDev->font.tm.tmAscent;
break;
case TA_BASELINE:
break;
case TA_BOTTOM:
y -= physDev->font.tm.tmDescent;
break;
}
memcpy(strbuf, str, count * sizeof(WCHAR));
*(strbuf + count) = '\0';
if ((GetBkMode( physDev->hdc ) != TRANSPARENT) && bDrawBackground)
{
PSDRV_WriteGSave(physDev);
PSDRV_WriteNewPath(physDev);
PSDRV_WriteRectangle(physDev, x, y - physDev->font.tm.tmAscent, sz.cx,
physDev->font.tm.tmAscent +
physDev->font.tm.tmDescent);
PSDRV_WriteSetColor(physDev, &physDev->bkColor);
PSDRV_WriteFill(physDev);
PSDRV_WriteGRestore(physDev);
}
PSDRV_WriteMoveTo(physDev, x, y);
if(!lpDx)
PSDRV_WriteGlyphShow(physDev, strbuf, lstrlenW(strbuf));
else {
INT i;
float dx = 0.0, dy = 0.0;
float cos_theta = cos(physDev->font.escapement * M_PI / 1800.0);
float sin_theta = sin(physDev->font.escapement * M_PI / 1800.0);
for(i = 0; i < count-1; i++) {
TRACE("lpDx[%d] = %d\n", i, lpDx[i]);
PSDRV_WriteGlyphShow(physDev, &strbuf[i], 1);
dx += lpDx[i] * cos_theta;
dy -= lpDx[i] * sin_theta;
PSDRV_WriteMoveTo(physDev, x + INTERNAL_XWSTODS(dc, dx),
y + INTERNAL_YWSTODS(dc, dy));
}
PSDRV_WriteGlyphShow(physDev, &strbuf[i], 1);
}
/*
* Underline and strikeout attributes.
*/
if ((physDev->font.tm.tmUnderlined) || (physDev->font.tm.tmStruckOut)) {
/* Get the thickness and the position for the underline attribute */
/* We'll use the same thickness for the strikeout attribute */
float thick = physDev->font.afm->UnderlineThickness * physDev->font.scale;
float pos = -physDev->font.afm->UnderlinePosition * physDev->font.scale;
SIZE size;
INT escapement = physDev->font.escapement;
TRACE("Position = %f Thickness %f Escapement %d\n",
pos, thick, escapement);
/* Get the width of the text */
PSDRV_GetTextExtentPoint(physDev, strbuf, lstrlenW(strbuf), &size);
size.cx = INTERNAL_XWSTODS(dc, size.cx);
/* Do the underline */
if (physDev->font.tm.tmUnderlined) {
PSDRV_WriteNewPath(physDev); /* will be closed by WriteRectangle */
if (escapement != 0) /* rotated text */
{
PSDRV_WriteGSave(physDev); /* save the graphics state */
PSDRV_WriteMoveTo(physDev, x, y); /* move to the start */
/* temporarily rotate the coord system */
PSDRV_WriteRotate(physDev, -escapement/10);
/* draw the underline relative to the starting point */
PSDRV_WriteRRectangle(physDev, 0, (INT)pos, size.cx, (INT)thick);
}
else
PSDRV_WriteRectangle(physDev, x, y + (INT)pos, size.cx, (INT)thick);
PSDRV_WriteFill(physDev);
if (escapement != 0) /* rotated text */
PSDRV_WriteGRestore(physDev); /* restore the graphics state */
}
/* Do the strikeout */
if (physDev->font.tm.tmStruckOut) {
pos = -physDev->font.tm.tmAscent / 2;
PSDRV_WriteNewPath(physDev); /* will be closed by WriteRectangle */
if (escapement != 0) /* rotated text */
{
PSDRV_WriteGSave(physDev); /* save the graphics state */
PSDRV_WriteMoveTo(physDev, x, y); /* move to the start */
/* temporarily rotate the coord system */
PSDRV_WriteRotate(physDev, -escapement/10);
/* draw the underline relative to the starting point */
PSDRV_WriteRRectangle(physDev, 0, (INT)pos, size.cx, (INT)thick);
}
else
PSDRV_WriteRectangle(physDev, x, y + (INT)pos, size.cx, (INT)thick);
PSDRV_WriteFill(physDev);
if (escapement != 0) /* rotated text */
PSDRV_WriteGRestore(physDev); /* restore the graphics state */
}
}
HeapFree(PSDRV_Heap, 0, strbuf);
return TRUE;
}