244 lines
8.1 KiB
C
244 lines
8.1 KiB
C
/*
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* X11 graphics driver text functions
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*
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* Copyright 1993,1994 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include <stdarg.h>
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#include <stdlib.h>
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#include <math.h>
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#include "windef.h"
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#include "winbase.h"
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#include "x11font.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(text);
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#define IROUND(x) (int)((x)>0? (x)+0.5 : (x) - 0.5)
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/***********************************************************************
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* X11DRV_ExtTextOut
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*/
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BOOL X11DRV_ExtTextOut( PHYSDEV dev, INT x, INT y, UINT flags,
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const RECT *lprect, LPCWSTR wstr, UINT count, const INT *lpDx )
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{
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X11DRV_PDEVICE *physDev = get_x11drv_dev( dev );
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RGNDATA *saved_region = NULL;
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unsigned int i;
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fontObject* pfo = XFONT_GetFontObject( physDev->font );
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XFontStruct* font;
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BOOL rotated = FALSE;
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XChar2b *str2b = NULL;
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BOOL dibUpdateFlag = FALSE;
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BOOL result = TRUE;
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if (!pfo)
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{
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dev = GET_NEXT_PHYSDEV( dev, pExtTextOut );
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return dev->funcs->pExtTextOut( dev, x, y, flags, lprect, wstr, count, lpDx );
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}
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if (!X11DRV_SetupGCForText( physDev )) return TRUE;
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font = pfo->fs;
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if (pfo->lf.lfEscapement && pfo->lpX11Trans)
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rotated = TRUE;
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TRACE("hdc=%p df=%04x %d,%d rc %s %s, %d flags=%d lpDx=%p\n",
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dev->hdc, (UINT16)physDev->font, x, y, wine_dbgstr_rect(lprect),
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debugstr_wn (wstr, count), count, flags, lpDx);
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/* Draw the rectangle */
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if (flags & ETO_OPAQUE)
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{
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X11DRV_LockDIBSection( physDev, DIB_Status_GdiMod );
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dibUpdateFlag = TRUE;
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wine_tsx11_lock();
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XSetForeground( gdi_display, physDev->gc, physDev->backgroundPixel );
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XFillRectangle( gdi_display, physDev->drawable, physDev->gc,
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physDev->dc_rect.left + lprect->left, physDev->dc_rect.top + lprect->top,
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lprect->right - lprect->left, lprect->bottom - lprect->top );
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wine_tsx11_unlock();
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}
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if (!count) goto END; /* Nothing more to do */
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/* Set the clip region */
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if (flags & ETO_CLIPPED)
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{
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HRGN clip_region = CreateRectRgnIndirect( lprect );
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saved_region = add_extra_clipping_region( physDev, clip_region );
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DeleteObject( clip_region );
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}
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/* Draw the text background if necessary */
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if (!dibUpdateFlag)
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{
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X11DRV_LockDIBSection( physDev, DIB_Status_GdiMod );
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dibUpdateFlag = TRUE;
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}
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/* Draw the text (count > 0 verified) */
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if (!(str2b = X11DRV_cptable[pfo->fi->cptable].punicode_to_char2b( pfo, wstr, count )))
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{
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result = FALSE;
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goto END;
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}
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wine_tsx11_lock();
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XSetForeground( gdi_display, physDev->gc, physDev->textPixel );
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wine_tsx11_unlock();
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if(!rotated)
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{
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if (!lpDx)
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{
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X11DRV_cptable[pfo->fi->cptable].pDrawString(
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pfo, gdi_display, physDev->drawable, physDev->gc,
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physDev->dc_rect.left + x, physDev->dc_rect.top + y, str2b, count );
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}
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else
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{
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XTextItem16 *items;
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items = HeapAlloc( GetProcessHeap(), 0, count * sizeof(XTextItem16) );
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if(items == NULL)
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{
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result = FALSE;
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goto END;
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}
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items[0].chars = str2b;
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items[0].delta = 0;
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items[0].nchars = 1;
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items[0].font = None;
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for(i = 1; i < count; i++)
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{
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items[i].chars = str2b + i;
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items[i].delta = (flags & ETO_PDY) ? lpDx[(i - 1) * 2] : lpDx[i - 1];
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items[i].delta -= X11DRV_cptable[pfo->fi->cptable].pTextWidth( pfo, str2b + i - 1, 1 );
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items[i].nchars = 1;
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items[i].font = None;
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}
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X11DRV_cptable[pfo->fi->cptable].pDrawText( pfo, gdi_display,
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physDev->drawable, physDev->gc,
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physDev->dc_rect.left + x, physDev->dc_rect.top + y, items, count );
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HeapFree( GetProcessHeap(), 0, items );
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}
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}
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else /* rotated */
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{
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/* have to render character by character. */
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double offset = 0.0;
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UINT i;
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for (i=0; i<count; i++)
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{
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int char_metric_offset = str2b[i].byte2 + (str2b[i].byte1 << 8)
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- font->min_char_or_byte2;
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int x_i = IROUND((double) (physDev->dc_rect.left + x) + offset *
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pfo->lpX11Trans->a / pfo->lpX11Trans->pixelsize );
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int y_i = IROUND((double) (physDev->dc_rect.top + y) - offset *
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pfo->lpX11Trans->b / pfo->lpX11Trans->pixelsize );
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X11DRV_cptable[pfo->fi->cptable].pDrawString(
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pfo, gdi_display, physDev->drawable, physDev->gc,
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x_i, y_i, &str2b[i], 1);
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if (lpDx)
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{
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offset += (flags & ETO_PDY) ? lpDx[i * 2] : lpDx[i];
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}
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else
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{
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offset += (double) (font->per_char ?
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font->per_char[char_metric_offset].attributes:
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font->min_bounds.attributes)
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* pfo->lpX11Trans->pixelsize / 1000.0;
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}
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}
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}
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END:
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HeapFree( GetProcessHeap(), 0, str2b );
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if (dibUpdateFlag) X11DRV_UnlockDIBSection( physDev, TRUE );
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restore_clipping_region( physDev, saved_region );
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return result;
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}
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/***********************************************************************
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* X11DRV_GetTextExtentExPoint
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*/
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BOOL X11DRV_GetTextExtentExPoint( PHYSDEV dev, LPCWSTR str, INT count,
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INT maxExt, LPINT lpnFit, LPINT alpDx, LPSIZE size )
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{
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X11DRV_PDEVICE *physDev = get_x11drv_dev( dev );
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fontObject* pfo = XFONT_GetFontObject( physDev->font );
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TRACE("%s %d\n", debugstr_wn(str,count), count);
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if( pfo ) {
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XChar2b *p = X11DRV_cptable[pfo->fi->cptable].punicode_to_char2b( pfo, str, count );
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if (!p) return FALSE;
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if( !pfo->lpX11Trans ) {
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int dir, ascent, descent;
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int info_width;
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X11DRV_cptable[pfo->fi->cptable].pTextExtents( pfo, p,
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count, &dir, &ascent, &descent, &info_width,
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maxExt, lpnFit, alpDx );
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size->cx = info_width;
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size->cy = pfo->fs->ascent + pfo->fs->descent;
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} else {
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INT i;
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INT nfit = 0;
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float x = 0.0, y = 0.0;
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float scaled_x = 0.0, pixsize = pfo->lpX11Trans->pixelsize;
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/* FIXME: Deal with *_char_or_byte2 != 0 situations */
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for(i = 0; i < count; i++) {
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x += pfo->fs->per_char ?
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pfo->fs->per_char[p[i].byte2 - pfo->fs->min_char_or_byte2].attributes :
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pfo->fs->min_bounds.attributes;
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scaled_x = x * pixsize / 1000.0;
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if (alpDx)
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alpDx[i] = scaled_x;
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if (scaled_x <= maxExt)
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++nfit;
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}
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y = pfo->lpX11Trans->RAW_ASCENT + pfo->lpX11Trans->RAW_DESCENT;
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TRACE("x = %f y = %f\n", x, y);
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size->cx = x * pfo->lpX11Trans->pixelsize / 1000.0;
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size->cy = y * pfo->lpX11Trans->pixelsize / 1000.0;
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if (lpnFit)
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*lpnFit = nfit;
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}
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size->cx *= pfo->rescale;
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size->cy *= pfo->rescale;
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HeapFree( GetProcessHeap(), 0, p );
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return TRUE;
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}
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dev = GET_NEXT_PHYSDEV( dev, pGetTextExtentExPoint );
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return dev->funcs->pGetTextExtentExPoint( dev, str, count, maxExt, lpnFit, alpDx, size );
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}
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