mirror of
https://github.com/reactos/wine.git
synced 2024-11-26 21:20:25 +00:00
438 lines
13 KiB
C
438 lines
13 KiB
C
/*
|
|
* X11 graphics driver text functions
|
|
*
|
|
* Copyright 1993,1994 Alexandre Julliard
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <X11/Xatom.h>
|
|
|
|
#include "ts_xlib.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <math.h>
|
|
|
|
#include "windef.h"
|
|
#include "winnls.h"
|
|
#include "gdi.h"
|
|
#include "heap.h"
|
|
#include "x11font.h"
|
|
#include "debugtools.h"
|
|
|
|
DEFAULT_DEBUG_CHANNEL(text);
|
|
|
|
#define SWAP_INT(a,b) { int t = a; a = b; b = t; }
|
|
#define IROUND(x) (int)((x)>0? (x)+0.5 : (x) - 0.5)
|
|
|
|
|
|
/***********************************************************************
|
|
* X11DRV_ExtTextOut
|
|
*/
|
|
BOOL
|
|
X11DRV_ExtTextOut( DC *dc, INT x, INT y, UINT flags,
|
|
const RECT *lprect, LPCWSTR wstr, UINT count,
|
|
const INT *lpDx )
|
|
{
|
|
int i;
|
|
fontObject* pfo;
|
|
INT width, ascent, descent, xwidth, ywidth;
|
|
XFontStruct* font;
|
|
RECT rect;
|
|
char dfBreakChar, lfUnderline, lfStrikeOut;
|
|
BOOL rotated = FALSE;
|
|
X11DRV_PDEVICE *physDev = (X11DRV_PDEVICE *)dc->physDev;
|
|
XChar2b *str2b = NULL;
|
|
BOOL dibUpdateFlag = FALSE;
|
|
BOOL result = TRUE;
|
|
|
|
if (!X11DRV_SetupGCForText( dc )) return TRUE;
|
|
|
|
pfo = XFONT_GetFontObject( physDev->font );
|
|
font = pfo->fs;
|
|
|
|
if (pfo->lf.lfEscapement && pfo->lpX11Trans)
|
|
rotated = TRUE;
|
|
dfBreakChar = (char)pfo->fi->df.dfBreakChar;
|
|
lfUnderline = (pfo->fo_flags & FO_SYNTH_UNDERLINE) ? 1 : 0;
|
|
lfStrikeOut = (pfo->fo_flags & FO_SYNTH_STRIKEOUT) ? 1 : 0;
|
|
|
|
TRACE("hdc=%04x df=%04x %d,%d %s, %d flags=%d lpDx=%p\n",
|
|
dc->hSelf, (UINT16)(physDev->font), x, y,
|
|
debugstr_wn (wstr, count), count, flags, lpDx);
|
|
|
|
/* some strings sent here end in a newline for whatever reason. I have no
|
|
clue what the right treatment should be in general, but ignoring
|
|
terminating newlines seems ok. MW, April 1998. */
|
|
if (count > 0 && wstr[count - 1] == '\n') count--;
|
|
|
|
if (lprect != NULL) TRACE("\trect=(%d,%d - %d,%d)\n",
|
|
lprect->left, lprect->top,
|
|
lprect->right, lprect->bottom );
|
|
/* Setup coordinates */
|
|
|
|
if (dc->textAlign & TA_UPDATECP)
|
|
{
|
|
x = dc->CursPosX;
|
|
y = dc->CursPosY;
|
|
}
|
|
|
|
if (flags & (ETO_OPAQUE | ETO_CLIPPED)) /* there's a rectangle */
|
|
{
|
|
if (!lprect) /* not always */
|
|
{
|
|
SIZE sz;
|
|
if (flags & ETO_CLIPPED) /* Can't clip with no rectangle */
|
|
return FALSE;
|
|
if (!X11DRV_GetTextExtentPoint( dc, wstr, count, &sz ))
|
|
return FALSE;
|
|
rect.left = XLPTODP( dc, x );
|
|
rect.right = XLPTODP( dc, x+sz.cx );
|
|
rect.top = YLPTODP( dc, y );
|
|
rect.bottom = YLPTODP( dc, y+sz.cy );
|
|
}
|
|
else
|
|
{
|
|
rect.left = XLPTODP( dc, lprect->left );
|
|
rect.right = XLPTODP( dc, lprect->right );
|
|
rect.top = YLPTODP( dc, lprect->top );
|
|
rect.bottom = YLPTODP( dc, lprect->bottom );
|
|
}
|
|
if (rect.right < rect.left) SWAP_INT( rect.left, rect.right );
|
|
if (rect.bottom < rect.top) SWAP_INT( rect.top, rect.bottom );
|
|
}
|
|
|
|
x = XLPTODP( dc, x );
|
|
y = YLPTODP( dc, y );
|
|
|
|
TRACE("\treal coord: x=%i, y=%i, rect=(%d,%d - %d,%d)\n",
|
|
x, y, rect.left, rect.top, rect.right, rect.bottom);
|
|
|
|
/* Draw the rectangle */
|
|
|
|
if (flags & ETO_OPAQUE)
|
|
{
|
|
X11DRV_DIB_UpdateDIBSection( dc, FALSE );
|
|
dibUpdateFlag = TRUE;
|
|
TSXSetForeground( display, physDev->gc, physDev->backgroundPixel );
|
|
TSXFillRectangle( display, physDev->drawable, physDev->gc,
|
|
dc->DCOrgX + rect.left, dc->DCOrgY + rect.top,
|
|
rect.right-rect.left, rect.bottom-rect.top );
|
|
}
|
|
if (!count) goto END; /* Nothing more to do */
|
|
|
|
/* Compute text starting position */
|
|
|
|
if (lpDx) /* have explicit character cell x offsets in logical coordinates */
|
|
{
|
|
int extra = dc->wndExtX / 2;
|
|
for (i = width = 0; i < count; i++) width += lpDx[i];
|
|
width = (width * dc->vportExtX + extra ) / dc->wndExtX;
|
|
}
|
|
else
|
|
{
|
|
SIZE sz;
|
|
if (!X11DRV_GetTextExtentPoint( dc, wstr, count, &sz ))
|
|
return FALSE;
|
|
width = XLSTODS(dc, sz.cx);
|
|
}
|
|
ascent = pfo->lpX11Trans ? pfo->lpX11Trans->ascent : font->ascent;
|
|
descent = pfo->lpX11Trans ? pfo->lpX11Trans->descent : font->descent;
|
|
xwidth = pfo->lpX11Trans ? width * pfo->lpX11Trans->a /
|
|
pfo->lpX11Trans->pixelsize : width;
|
|
ywidth = pfo->lpX11Trans ? width * pfo->lpX11Trans->b /
|
|
pfo->lpX11Trans->pixelsize : 0;
|
|
|
|
switch( dc->textAlign & (TA_LEFT | TA_RIGHT | TA_CENTER) )
|
|
{
|
|
case TA_LEFT:
|
|
if (dc->textAlign & TA_UPDATECP) {
|
|
dc->CursPosX = XDPTOLP( dc, x + xwidth );
|
|
dc->CursPosY = YDPTOLP( dc, y - ywidth );
|
|
}
|
|
break;
|
|
case TA_RIGHT:
|
|
x -= xwidth;
|
|
y += ywidth;
|
|
if (dc->textAlign & TA_UPDATECP) {
|
|
dc->CursPosX = XDPTOLP( dc, x );
|
|
dc->CursPosY = YDPTOLP( dc, y );
|
|
}
|
|
break;
|
|
case TA_CENTER:
|
|
x -= xwidth / 2;
|
|
y += ywidth / 2;
|
|
break;
|
|
}
|
|
|
|
switch( dc->textAlign & (TA_TOP | TA_BOTTOM | TA_BASELINE) )
|
|
{
|
|
case TA_TOP:
|
|
x -= pfo->lpX11Trans ? ascent * pfo->lpX11Trans->c /
|
|
pfo->lpX11Trans->pixelsize : 0;
|
|
y += pfo->lpX11Trans ? ascent * pfo->lpX11Trans->d /
|
|
pfo->lpX11Trans->pixelsize : ascent;
|
|
break;
|
|
case TA_BOTTOM:
|
|
x += pfo->lpX11Trans ? descent * pfo->lpX11Trans->c /
|
|
pfo->lpX11Trans->pixelsize : 0;
|
|
y -= pfo->lpX11Trans ? descent * pfo->lpX11Trans->d /
|
|
pfo->lpX11Trans->pixelsize : descent;
|
|
break;
|
|
case TA_BASELINE:
|
|
break;
|
|
}
|
|
|
|
/* Set the clip region */
|
|
|
|
if (flags & ETO_CLIPPED)
|
|
{
|
|
SaveVisRgn16( dc->hSelf );
|
|
CLIPPING_IntersectVisRect( dc, rect.left, rect.top, rect.right,
|
|
rect.bottom, FALSE );
|
|
}
|
|
|
|
/* Draw the text background if necessary */
|
|
|
|
if (!dibUpdateFlag)
|
|
{
|
|
X11DRV_DIB_UpdateDIBSection( dc, FALSE );
|
|
dibUpdateFlag = TRUE;
|
|
}
|
|
|
|
if (dc->backgroundMode != TRANSPARENT)
|
|
{
|
|
/* If rectangle is opaque and clipped, do nothing */
|
|
if (!(flags & ETO_CLIPPED) || !(flags & ETO_OPAQUE))
|
|
{
|
|
/* Only draw if rectangle is not opaque or if some */
|
|
/* text is outside the rectangle */
|
|
if (!(flags & ETO_OPAQUE) ||
|
|
(x < rect.left) ||
|
|
(x + width >= rect.right) ||
|
|
(y - ascent < rect.top) ||
|
|
(y + descent >= rect.bottom))
|
|
{
|
|
TSXSetForeground( display, physDev->gc,
|
|
physDev->backgroundPixel );
|
|
TSXFillRectangle( display, physDev->drawable, physDev->gc,
|
|
dc->DCOrgX + x,
|
|
dc->DCOrgY + y - ascent,
|
|
width,
|
|
ascent + descent );
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Draw the text (count > 0 verified) */
|
|
if (!(str2b = X11DRV_cptable[pfo->fi->cptable].punicode_to_char2b( pfo, wstr, count )))
|
|
goto FAIL;
|
|
|
|
TSXSetForeground( display, physDev->gc, physDev->textPixel );
|
|
if(!rotated)
|
|
{
|
|
if (!dc->charExtra && !dc->breakExtra && !lpDx)
|
|
{
|
|
X11DRV_cptable[pfo->fi->cptable].pDrawString(
|
|
pfo, display, physDev->drawable, physDev->gc,
|
|
dc->DCOrgX + x, dc->DCOrgY + y, str2b, count );
|
|
}
|
|
else /* Now the fun begins... */
|
|
{
|
|
XTextItem16 *items, *pitem;
|
|
int delta;
|
|
|
|
/* allocate max items */
|
|
|
|
pitem = items = HeapAlloc( GetProcessHeap(), 0,
|
|
count * sizeof(XTextItem16) );
|
|
if(items == NULL) goto FAIL;
|
|
delta = i = 0;
|
|
if( lpDx ) /* explicit character widths */
|
|
{
|
|
const long ve_we = dc->vportExtX*0x10000 / dc->wndExtX;
|
|
unsigned short err = 0;
|
|
|
|
while (i < count)
|
|
{
|
|
/* initialize text item with accumulated delta */
|
|
|
|
long sum;
|
|
long fSum;
|
|
sum = 0;
|
|
pitem->chars = str2b + i;
|
|
pitem->delta = delta;
|
|
pitem->nchars = 0;
|
|
pitem->font = None;
|
|
delta = 0;
|
|
|
|
/* add characters to the same XTextItem
|
|
* until new delta becomes non-zero */
|
|
|
|
do
|
|
{
|
|
sum += lpDx[i];
|
|
fSum = sum*ve_we+err;
|
|
delta = SHIWORD(fSum)
|
|
- X11DRV_cptable[pfo->fi->cptable].pTextWidth(
|
|
pfo, pitem->chars, pitem->nchars+1);
|
|
pitem->nchars++;
|
|
} while ((++i < count) && !delta);
|
|
pitem++;
|
|
err = LOWORD(fSum);
|
|
}
|
|
}
|
|
else /* charExtra or breakExtra */
|
|
{
|
|
while (i < count)
|
|
{
|
|
pitem->chars = str2b + i;
|
|
pitem->delta = delta;
|
|
pitem->nchars = 0;
|
|
pitem->font = None;
|
|
delta = 0;
|
|
|
|
do
|
|
{
|
|
delta += dc->charExtra;
|
|
if (str2b[i].byte2 == (char)dfBreakChar)
|
|
delta += dc->breakExtra;
|
|
pitem->nchars++;
|
|
} while ((++i < count) && !delta);
|
|
pitem++;
|
|
}
|
|
}
|
|
|
|
X11DRV_cptable[pfo->fi->cptable].pDrawText( pfo, display,
|
|
physDev->drawable, physDev->gc,
|
|
dc->DCOrgX + x, dc->DCOrgY + y, items, pitem - items );
|
|
HeapFree( GetProcessHeap(), 0, items );
|
|
}
|
|
}
|
|
else /* rotated */
|
|
{
|
|
/* have to render character by character. */
|
|
double offset = 0.0;
|
|
int i;
|
|
|
|
for (i=0; i<count; i++)
|
|
{
|
|
int char_metric_offset = str2b[i].byte2 + (str2b[i].byte1 << 8)
|
|
- font->min_char_or_byte2;
|
|
int x_i = IROUND((double) (dc->DCOrgX + x) + offset *
|
|
pfo->lpX11Trans->a / pfo->lpX11Trans->pixelsize );
|
|
int y_i = IROUND((double) (dc->DCOrgY + y) - offset *
|
|
pfo->lpX11Trans->b / pfo->lpX11Trans->pixelsize );
|
|
|
|
X11DRV_cptable[pfo->fi->cptable].pDrawString(
|
|
pfo, display, physDev->drawable, physDev->gc,
|
|
x_i, y_i, &str2b[i], 1);
|
|
if (lpDx)
|
|
offset += XLSTODS(dc, lpDx[i]);
|
|
else
|
|
{
|
|
offset += (double) (font->per_char ?
|
|
font->per_char[char_metric_offset].attributes:
|
|
font->min_bounds.attributes)
|
|
* pfo->lpX11Trans->pixelsize / 1000.0;
|
|
offset += dc->charExtra;
|
|
if (str2b[i].byte2 == (char)dfBreakChar)
|
|
offset += dc->breakExtra;
|
|
}
|
|
}
|
|
}
|
|
HeapFree( GetProcessHeap(), 0, str2b );
|
|
|
|
/* Draw underline and strike-out if needed */
|
|
|
|
if (lfUnderline)
|
|
{
|
|
long linePos, lineWidth;
|
|
|
|
if (!TSXGetFontProperty( font, XA_UNDERLINE_POSITION, &linePos ))
|
|
linePos = descent - 1;
|
|
if (!TSXGetFontProperty( font, XA_UNDERLINE_THICKNESS, &lineWidth ))
|
|
lineWidth = 0;
|
|
else if (lineWidth == 1) lineWidth = 0;
|
|
TSXSetLineAttributes( display, physDev->gc, lineWidth,
|
|
LineSolid, CapRound, JoinBevel );
|
|
TSXDrawLine( display, physDev->drawable, physDev->gc,
|
|
dc->DCOrgX + x, dc->DCOrgY + y + linePos,
|
|
dc->DCOrgX + x + width, dc->DCOrgY + y + linePos );
|
|
}
|
|
if (lfStrikeOut)
|
|
{
|
|
long lineAscent, lineDescent;
|
|
if (!TSXGetFontProperty( font, XA_STRIKEOUT_ASCENT, &lineAscent ))
|
|
lineAscent = ascent / 2;
|
|
if (!TSXGetFontProperty( font, XA_STRIKEOUT_DESCENT, &lineDescent ))
|
|
lineDescent = -lineAscent * 2 / 3;
|
|
TSXSetLineAttributes( display, physDev->gc, lineAscent + lineDescent,
|
|
LineSolid, CapRound, JoinBevel );
|
|
TSXDrawLine( display, physDev->drawable, physDev->gc,
|
|
dc->DCOrgX + x, dc->DCOrgY + y - lineAscent,
|
|
dc->DCOrgX + x + width, dc->DCOrgY + y - lineAscent );
|
|
}
|
|
|
|
if (flags & ETO_CLIPPED)
|
|
RestoreVisRgn16( dc->hSelf );
|
|
|
|
goto END;
|
|
|
|
FAIL:
|
|
if(str2b != NULL) HeapFree( GetProcessHeap(), 0, str2b );
|
|
result = FALSE;
|
|
|
|
END:
|
|
if (dibUpdateFlag) X11DRV_DIB_UpdateDIBSection( dc, TRUE );
|
|
return result;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* X11DRV_GetTextExtentPoint
|
|
*/
|
|
BOOL X11DRV_GetTextExtentPoint( DC *dc, LPCWSTR str, INT count,
|
|
LPSIZE size )
|
|
{
|
|
X11DRV_PDEVICE *physDev = (X11DRV_PDEVICE *)dc->physDev;
|
|
fontObject* pfo = XFONT_GetFontObject( physDev->font );
|
|
|
|
TRACE("%s %d\n", debugstr_wn(str,count), count);
|
|
if( pfo ) {
|
|
XChar2b *p = X11DRV_cptable[pfo->fi->cptable].punicode_to_char2b( pfo, str, count );
|
|
if (!p) return FALSE;
|
|
if( !pfo->lpX11Trans ) {
|
|
int dir, ascent, descent;
|
|
int info_width;
|
|
X11DRV_cptable[pfo->fi->cptable].pTextExtents( pfo, p,
|
|
count, &dir, &ascent, &descent, &info_width );
|
|
size->cx = abs((info_width + dc->breakRem + count *
|
|
dc->charExtra) * dc->wndExtX / dc->vportExtX);
|
|
size->cy = abs((pfo->fs->ascent + pfo->fs->descent) *
|
|
dc->wndExtY / dc->vportExtY);
|
|
} else {
|
|
INT i;
|
|
float x = 0.0, y = 0.0;
|
|
/* FIXME: Deal with *_char_or_byte2 != 0 situations */
|
|
for(i = 0; i < count; i++) {
|
|
x += pfo->fs->per_char ?
|
|
pfo->fs->per_char[p[i].byte2 - pfo->fs->min_char_or_byte2].attributes :
|
|
pfo->fs->min_bounds.attributes;
|
|
}
|
|
y = pfo->lpX11Trans->RAW_ASCENT + pfo->lpX11Trans->RAW_DESCENT;
|
|
TRACE("x = %f y = %f\n", x, y);
|
|
x *= pfo->lpX11Trans->pixelsize / 1000.0;
|
|
y *= pfo->lpX11Trans->pixelsize / 1000.0;
|
|
size->cx = fabs((x + dc->breakRem + count * dc->charExtra) *
|
|
dc->wndExtX / dc->vportExtX);
|
|
size->cy = fabs(y * dc->wndExtY / dc->vportExtY);
|
|
}
|
|
size->cx *= pfo->rescale;
|
|
size->cy *= pfo->rescale;
|
|
HeapFree( GetProcessHeap(), 0, p );
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|