windisp.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 619 行 · 第 1/2 页

    if( EditFlags.Quiet ) {
        return;
    }
    w = Windows[ wn ];

    /*
     * find dimensions of line
     */
    if( !w->has_border ) {
        return;
    }
    if( line < 1 || line > w->height-2 ) {
        return;
    }
    line--;

    /*
     * initialize
     */
    w = AccessWindow( wn );
    addr = 1 + (1+line) * w->width;
    txt = (char_info *) &(w->text[ sizeof(char_info)*addr ]);
    scr = (char_info _FAR *) &Scrn[ (w->x1 + (1+line+w->y1)*WindMaxWidth) *
                                sizeof(char_info) ];
#ifdef __VIO__
    oscr = (unsigned) ((char _FAR *) (scr) - Scrn);
#endif
    what.attr = MAKE_ATTR( w, w->border_color1, w->border_color2 );
    what.ch = WindowBordersNG[ WB_LEFTT ];

    over = &(w->overlap[ addr ]);
    if( *over++ == NO_CHAR ) {
        WRITE_SCREEN( *scr, what );
    }
    WRITE_SCREEN_DATA( *txt, what );
    txt++;
    scr++;

    what.ch = WindowBordersNG[ WB_TOPBOTTOM ];
    for( i=w->x1+1;i<w->x2;i++ ) {
        if( *over++ == NO_CHAR ) {
            WRITE_SCREEN( *scr, what );
        }
        WRITE_SCREEN_DATA( *txt, what );
        txt++;
        scr++;
    }

    if( line != w->height-3 && line != 0 ) {
        what.ch = WindowBordersNG[ WB_RIGHTT ];
        WRITE_SCREEN_DATA( *txt, what );
        if( *over == NO_CHAR )  {
            WRITE_SCREEN( *scr, what );
        }
        scr++;
        txt++;
    }

#ifdef __VIO__
    MyVioShowBuf( oscr, w->width );
#endif
    ReleaseWindow( w );

} /* DisplayCrossLineInWindow */

/*
 * changeColorOfDisplayLine - do just that, using given colors and column range
 */
static void changeColorOfDisplayLine( int line, int scol, int ecol, type_style *s )
{
    wind                *w;
    char                *over;
    char_info           _FAR *scr;
    char_info           what;
#ifdef __VIO__
    unsigned            oscr;
    unsigned            onscr;
#endif
    int                 attr,t,end,spend,cnt1,cnt2,sscol,spl;

    if( EditFlags.Quiet ) {
        return;
    }
    w = AccessWindow( CurrentWindow );

    /*
     * find dimensions of line
     */
    if( w->has_border ) {
        if( line < 1 || line > w->height-2 ) {
            ReleaseWindow( w );
            return;
        }
        spl = line;
        sscol = 1+scol;
        spend = end = ecol+2;
        if( spend > w->width-1 ) {
            spend = end = w->width-1;
        }
        if( sscol < 1 ) {
            sscol = 1;
        }
    } else {
        if( line < 1 || line > w->height ) {
            ReleaseWindow( w );
            return;
        }
        spl = line-1;
        sscol = scol;
        spend = end = ecol+1;
        if( spend > w->width ) {
            spend = end = w->width;
        }
        if( sscol < 0 ) {
            sscol = 0;
        }
    }
    cnt1 = end-sscol;
    cnt2 = spend-end;

    line--;

    /*
     * initialize
     */
    t = sscol + spl * w->width;
    scr = (char_info _FAR *) &Scrn[ (w->x1+sscol + (spl+w->y1)*WindMaxWidth)
                                *sizeof(char_info) ];
#ifdef __VIO__
    oscr = (unsigned) ((char _FAR *) scr - Scrn);
    onscr = 0;
#endif
    attr = MAKE_ATTR( w, s->foreground, s->background );
    what.attr = attr;

    /*
     * display line
     */
    if( w->overcnt[ spl ] ) {
        over = w->overlap + t;
        while( cnt1-- != 0 ) {
            if( *over++ == NO_CHAR ) {
                what.ch = (*scr).ch;
                WRITE_SCREEN( *scr, what );
#ifdef __VIO__
                onscr++;
#endif
            }
            scr++;
        }
        while( cnt2-- != 0 ) {
            if( *over++ == NO_CHAR ) {
                what.ch = (*scr).ch;
                WRITE_SCREEN( *scr, what );
#ifdef __VIO__
                onscr++;
#endif
            }
            scr++;
        }
    } else {
        while( cnt1-- != 0 ) {
            what.ch = (*scr).ch;
            WRITE_SCREEN( *scr, what );
#ifdef __VIO__
            onscr++;
#endif
            scr++;
        }
        while( cnt2-- != 0 ) {
            what.ch = (*scr).ch;
            WRITE_SCREEN( *scr, what );
#ifdef __VIO__
            onscr++;
#endif
            scr++;
        }
    }
#ifdef __VIO__
    MyVioShowBuf( oscr, onscr );
#endif
    ReleaseWindow( w );

} /* changeColorOfDisplayLine */

/*
 * HiliteAColumnRange - color a specified word on a line
 */
void HiliteAColumnRange( linenum line, int scol, int ecol )
{
    int s,e;

    s = VirtualCursorPosition2( scol );
    e = VirtualCursorPosition2( ecol + 1 ) - 1;
    if( scol == 0 ) {
        s = 0;
    }
    changeColorOfDisplayLine( (int) (line-TopOfPage+1),
            s - LeftColumn, e - LeftColumn, &editw_info.hilight );

} /* HiliteAColumnRange */

/*
 * ColorAColumnRange - color a specified word on a line
 */
void ColorAColumnRange( int row, int scol, int ecol, type_style *style )
{
    int s,e,t;

    s = VirtualCursorPosition2( scol );
    e = VirtualCursorPosition2( ecol );
    if( s > e ) {
        t = s;
        s = e;
        e = t;
    }

    s--;
    e--;
    changeColorOfDisplayLine( row, s - LeftColumn, e - LeftColumn, style );

} /* ColorAColumnRange */

/*
 * SetCharInWindowWithColor - do just that, using given colors
 */
int SetCharInWindowWithColor( window_id wn, int line, int col, char text, type_style *style )
{
    wind                *w;
    char                *over;
    int                 attr,addr,start,spl;
    char_info           tmp;
    char_info           *txt;
    char_info           _FAR *scr;
    bool                has_mouse;

    if( EditFlags.Quiet ) {
        return( ERR_NO_ERR );
    }
    w = Windows[ wn ];

    /*
     * find dimensions of line
     */
    if( w->has_border ) {
        if( line < 1 || line > w->height-2 ) {
            return( ERR_WIND_NO_SUCH_LINE );
        }
        start = 1;
        spl = line;
    } else {
        if( line < 1 || line > w->height ) {
            return( ERR_WIND_NO_SUCH_LINE );
        }
        start = 0;
        spl = line-1;
    }
    if( col < 1 || col > w->width ) {
        return( ERR_WIND_NO_SUCH_COLUMN );
    }
    line--;
    col--;

    /*
     * initialize
     */
    w = AccessWindow( wn );
    addr = col + start + spl * w->width;
    txt = (char_info *) &(w->text[ sizeof(char_info)*addr ]);
    scr = (char_info _FAR *) &Scrn[ (w->x1+start + col + (spl+w->y1)*
                        WindMaxWidth) *sizeof(char_info) ];
    attr = MAKE_ATTR( w, style->foreground, style->background );

    /*
     * display char
     */
    has_mouse = DisplayMouse( FALSE );
    over = &(w->overlap[ addr ]);
    tmp.attr = attr;
    tmp.ch = text;
    WRITE_SCREEN_DATA( *txt, tmp );
    if( *over == NO_CHAR ) {
        WRITE_SCREEN( *scr, tmp );
    }
#ifdef __VIO__
    MyVioShowBuf( (unsigned)((char *) scr-Scrn), 1 );
#endif

    ReleaseWindow( w );
    DisplayMouse( has_mouse );
    return( ERR_NO_ERR );

} /* SetCharInWindowWithColor */

/*
 * DisplayLineInWindow - do as it sounds, use default colors
 */
int DisplayLineInWindow( window_id wn, int c_line_no, char *text )
{
    ss_block    ss;
    SEType[ SE_UNUSED ].foreground = Windows[ wn ]->text_color;
    SEType[ SE_UNUSED ].background = Windows[ wn ]->background_color;
    SEType[ SE_UNUSED ].font = 0;
    ss.type = SE_UNUSED;
    ss.end = BEYOND_TEXT;
    return( displayLineInWindowGeneric( wn, c_line_no, text, 0, &ss ) );
} /* DisplayLineInWindow */