wine/dlls/wineps/text.c
2001-04-16 18:55:48 +00:00

255 lines
7.1 KiB
C

/*
* PostScript driver text functions
*
* Copyright 1998 Huw D M Davies
*
*/
#include <string.h>
#include "psdrv.h"
#include "debugtools.h"
#include "winspool.h"
DEFAULT_DEBUG_CHANNEL(psdrv);
static BOOL PSDRV_Text(DC *dc, INT x, INT y, LPCWSTR str, UINT count,
BOOL bDrawBackground, const INT *lpDx);
/***********************************************************************
* PSDRV_ExtTextOut
*/
BOOL PSDRV_ExtTextOut( DC *dc, INT x, INT y, UINT flags,
const RECT *lprect, LPCWSTR str, UINT count,
const INT *lpDx )
{
PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
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(dc);
/* set clipping and/or draw background */
if ((flags & (ETO_CLIPPED | ETO_OPAQUE)) && (lprect != NULL))
{
rect.left = INTERNAL_XWPTODP(dc, lprect->left, lprect->top);
rect.right = INTERNAL_XWPTODP(dc, lprect->right, lprect->bottom);
rect.top = INTERNAL_YWPTODP(dc, lprect->left, lprect->top);
rect.bottom = INTERNAL_YWPTODP(dc, lprect->right, lprect->bottom);
PSDRV_WriteGSave(dc);
PSDRV_WriteRectangle(dc, rect.left, rect.top, rect.right - rect.left,
rect.bottom - rect.top);
if (flags & ETO_OPAQUE)
{
bOpaque = TRUE;
PSDRV_WriteGSave(dc);
PSDRV_WriteSetColor(dc, &physDev->bkColor);
PSDRV_WriteFill(dc);
PSDRV_WriteGRestore(dc);
}
if (flags & ETO_CLIPPED)
{
bClipped = TRUE;
PSDRV_WriteClip(dc);
}
bResult = PSDRV_Text(dc, x, y, str, count, !(bClipped && bOpaque), lpDx);
PSDRV_WriteGRestore(dc);
}
else
{
bResult = PSDRV_Text(dc, x, y, str, count, TRUE, lpDx);
}
return bResult;
}
/***********************************************************************
* PSDRV_Text
*/
static BOOL PSDRV_Text(DC *dc, INT x, INT y, LPCWSTR str, UINT count,
BOOL bDrawBackground, const INT *lpDx)
{
PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
LPWSTR strbuf;
SIZE sz;
if (!count)
return TRUE;
strbuf = HeapAlloc( PSDRV_Heap, 0, (count + 1) * sizeof(WCHAR));
if(!strbuf) {
WARN("HeapAlloc failed\n");
return FALSE;
}
if(dc->textAlign & TA_UPDATECP) {
x = dc->CursPosX;
y = dc->CursPosY;
}
x = INTERNAL_XWPTODP(dc, x, y);
y = INTERNAL_YWPTODP(dc, x, y);
GetTextExtentPoint32W(dc->hSelf, str, count, &sz);
if(lpDx) {
SIZE tmpsz;
INT i;
/* Get the width of the last char and add on all the offsets */
GetTextExtentPoint32W(dc->hSelf, 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", dc->textAlign);
switch(dc->textAlign & (TA_LEFT | TA_CENTER | TA_RIGHT) ) {
case TA_LEFT:
if(dc->textAlign & 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(dc->textAlign & TA_UPDATECP) {
dc->CursPosX = INTERNAL_XDPTOWP(dc, x, y);
}
break;
}
switch(dc->textAlign & (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 ((dc->backgroundMode != TRANSPARENT) && (bDrawBackground != FALSE))
{
PSDRV_WriteGSave(dc);
PSDRV_WriteNewPath(dc);
PSDRV_WriteRectangle(dc, x, y - physDev->font.tm.tmAscent, sz.cx,
physDev->font.tm.tmAscent +
physDev->font.tm.tmDescent);
PSDRV_WriteSetColor(dc, &physDev->bkColor);
PSDRV_WriteFill(dc);
PSDRV_WriteGRestore(dc);
}
PSDRV_WriteMoveTo(dc, x, y);
if(!lpDx)
PSDRV_WriteShow(dc, 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_WriteShow(dc, &strbuf[i], 1);
dx += lpDx[i] * cos_theta;
dy -= lpDx[i] * sin_theta;
PSDRV_WriteMoveTo(dc, x + INTERNAL_XWSTODS(dc, dx),
y + INTERNAL_YWSTODS(dc, dy));
}
PSDRV_WriteShow(dc, &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(dc, strbuf, lstrlenW(strbuf), &size);
size.cx = INTERNAL_XWSTODS(dc, size.cx);
/* Do the underline */
if (physDev->font.tm.tmUnderlined) {
if (escapement != 0) /* rotated text */
{
PSDRV_WriteGSave(dc); /* save the graphics state */
PSDRV_WriteMoveTo(dc, x, y); /* move to the start */
/* temporarily rotate the coord system */
PSDRV_WriteRotate(dc, -escapement/10);
/* draw the underline relative to the starting point */
PSDRV_WriteRRectangle(dc, 0, (INT)pos, size.cx, (INT)thick);
}
else
PSDRV_WriteRectangle(dc, x, y + (INT)pos, size.cx, (INT)thick);
PSDRV_WriteFill(dc);
if (escapement != 0) /* rotated text */
PSDRV_WriteGRestore(dc); /* restore the graphics state */
}
/* Do the strikeout */
if (physDev->font.tm.tmStruckOut) {
pos = -physDev->font.tm.tmAscent / 2;
if (escapement != 0) /* rotated text */
{
PSDRV_WriteGSave(dc); /* save the graphics state */
PSDRV_WriteMoveTo(dc, x, y); /* move to the start */
/* temporarily rotate the coord system */
PSDRV_WriteRotate(dc, -escapement/10);
/* draw the underline relative to the starting point */
PSDRV_WriteRRectangle(dc, 0, (INT)pos, size.cx, (INT)thick);
}
else
PSDRV_WriteRectangle(dc, x, y + (INT)pos, size.cx, (INT)thick);
PSDRV_WriteFill(dc);
if (escapement != 0) /* rotated text */
PSDRV_WriteGRestore(dc); /* restore the graphics state */
}
}
HeapFree(PSDRV_Heap, 0, strbuf);
return TRUE;
}