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RegionGN.C
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C/C++ Source or Header
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1998-03-25
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// $Id: RegionGN.C,v 1.9 1998/03/25 12:44:06 zeller Exp $
// RegionGraphNode class
// 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 RegionGraphNode_rcsid[] =
"$Id: RegionGN.C,v 1.9 1998/03/25 12:44:06 zeller Exp $";
#ifdef __GNUG__
#pragma implementation
#endif
#include <iostream.h>
#include <string.h>
#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/Intrinsic.h>
#include "RegionGN.h"
#include "printBox.h"
DEFINE_TYPE_INFO_1(RegionGraphNode, PosGraphNode)
// Center around position
void RegionGraphNode::center()
{
_region.origin() = pos() - (_region.space() / 2);
}
// Compute position for ORIGIN
BoxPoint RegionGraphNode::originToPos(const BoxPoint& origin,
const GraphGC& gc) const
{
return origin + region(gc).space() / 2;
}
// Draw a RegionGraphNode
void RegionGraphNode::draw(Widget w,
const BoxRegion& exposed,
const GraphGC& gc) const
{
const BoxRegion& r = region(gc);
// if not exposed or invisible, return
if (!(r <= exposed) || r.space(X) == 0 || r.space(Y) == 0)
return;
Display *display = XtDisplay(w);
Window window = XtWindow(w);
// clear the area
XFillRectangle(display, window, gc.clearGC,
r.origin(X), r.origin(Y),
r.space(X), r.space(Y));
// draw contents
forceDraw(w, exposed, gc);
// if selected, invert area
if (selected())
{
const BoxRegion& h = highlightRegion(gc);
XFillRectangle(display, window, gc.invertGC,
h.origin(X), h.origin(Y),
h.space(X), h.space(Y));
}
};
// cleanRegion
// clean a region with white ink
//
static void cleanRegion (ostream& os, const GraphGC& gc, BoxRegion region)
{
BoxPoint origin = region.origin();
BoxPoint width = region.space();
if (gc.printGC->isPostScript())
{
os << origin[X] << " " << origin[Y] << " ";
os << origin[X] + width[X] << " " << origin[Y];
os << " ";
os << origin[X] + width[X] << " ";
os << origin[Y] + width[Y] << " ";
os << origin[X] << " " << origin[Y] + width[Y];
os << " clean*\n";
}
else if (gc.printGC->isFig())
{
os << CLEANHEAD;
os << origin[X] << " " << origin[Y] << " ";
os << origin[X] + width[X] << " " << origin[Y];
os << " ";
os << origin[X] + width[X] << " ";
os << origin[Y] + width[Y] << " ";
os << origin[X] << " " << origin[Y] + width[Y];
os << " ";
os << origin[X] << " "<< origin[Y] << " 9999 9999\n";
}
}
// Print a RegionGraphNode
void RegionGraphNode::_print(ostream& os, const GraphGC& gc) const
{
cleanRegion(os, gc, region(gc));
}
// Handlers
static bool Yes(RegionGraphNode *, const BoxSize&) { return true; }
bool (*RegionGraphNode::ResizeCB)(RegionGraphNode *, const BoxSize&) = Yes;