home *** CD-ROM | disk | FTP | other *** search
- // $Id: LineBox.C,v 1.8 1998/11/23 15:00:22 zeller Exp $
- // Line boxes
-
- // Copyright (C) 1995 Technische Universitaet Braunschweig, Germany.
- // Written by Andreas Zeller <zeller@ips.cs.tu-bs.de>.
- //
- // This file is part of DDD.
- //
- // DDD is free software; you can redistribute it and/or
- // modify it under the terms of the GNU General Public
- // License as published by the Free Software Foundation; either
- // version 2 of the License, or (at your option) any later version.
- //
- // DDD 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 General Public License for more details.
- //
- // You should have received a copy of the GNU General Public
- // License along with DDD -- see the file COPYING.
- // If not, write to the Free Software Foundation, Inc.,
- // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- //
- // DDD is the data display debugger.
- // For details, see the DDD World-Wide-Web page,
- // `http://www.cs.tu-bs.de/softech/ddd/',
- // or send a mail to the DDD developers <ddd@ips.cs.tu-bs.de>.
-
- char LineBox_rcsid[] =
- "$Id: LineBox.C,v 1.8 1998/11/23 15:00:22 zeller Exp $";
-
- #ifdef __GNUG__
- #pragma implementation
- #endif
-
-
- #include "LineBox.h"
-
- #include <X11/Xlib.h>
- #include <X11/Intrinsic.h>
-
- DEFINE_TYPE_INFO_1(LineBox, PrimitiveBox)
-
- // LineBox
-
- // Draw
- void LineBox::_draw(Widget w,
- const BoxRegion& r,
- const BoxRegion& exposed,
- GC gc,
- bool context_selected) const
- {
- XGCValues gcvalues;
-
- // Set width and cap style; project beyond end point up to 1/2
- // line thickness
- gcvalues.line_width = _linethickness;
- gcvalues.cap_style = CapProjecting;
- XChangeGC(XtDisplay(w), gc, GCLineWidth | GCCapStyle, &gcvalues);
-
- // Keep an empty frame of 1/2 line thickness around R (X may cross
- // R's boundaries otherwise)
- BoxPoint origin = r.origin();
- BoxSize space = r.space();
- origin += _linethickness / 2;
- space -= _linethickness;
-
- // Draw children
- __draw(w, BoxRegion(origin, space), exposed, gc, context_selected);
-
- // Attention: We leave LINE_WIDTH and CAP_STYLE changed!
- // (Works within Box::draw(), but the used GC may be changed)
- }
-