/usr/include/flowcanvas/Connection.hpp is in libflowcanvas-dev 0.7.1+dfsg0-0.2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 | /* This file is part of FlowCanvas.
* Copyright (C) 2007-2009 David Robillard <http://drobilla.net>
*
* FlowCanvas 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.
*
* FlowCanvas 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 details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef FLOWCANVAS_CONNECTION_HPP
#define FLOWCANVAS_CONNECTION_HPP
#include <stdint.h>
#include <list>
#include <string>
#include <boost/weak_ptr.hpp>
#include <libgnomecanvasmm.h>
#include <libgnomecanvasmm/bpath.h>
#include <libgnomecanvasmm/path-def.h>
namespace FlowCanvas {
class Canvas;
class Connectable;
/** A connection (line) between two canvas objects.
*
* \ingroup FlowCanvas
*/
class Connection : public Gnome::Canvas::Group
{
public:
Connection(boost::shared_ptr<Canvas> canvas,
boost::shared_ptr<Connectable> source,
boost::shared_ptr<Connectable> dest,
uint32_t color,
bool show_arrow_head = false);
virtual ~Connection();
virtual void move(double /*dx*/, double /*dy*/)
{ /* ignore, src/dst take care of it */ }
virtual void zoom(double z);
bool selected() const { return _selected; }
void set_selected(bool b);
virtual double length_hint() const { return 0.0; }
void set_label(const std::string& str);
void show_handle(bool show);
void set_color(uint32_t color);
void set_highlighted(bool b);
void raise_to_top();
void select_tick();
const boost::weak_ptr<Connectable> source() const { return _source; }
const boost::weak_ptr<Connectable> dest() const { return _dest; }
enum HandleStyle {
HANDLE_NONE,
HANDLE_RECT,
HANDLE_CIRCLE,
};
void set_handle_style(HandleStyle s) { _handle_style = s; }
protected:
friend class Canvas;
friend class Connectable;
void update_location();
const boost::weak_ptr<Canvas> _canvas;
const boost::weak_ptr<Connectable> _source;
const boost::weak_ptr<Connectable> _dest;
Gnome::Canvas::Bpath _bpath;
GnomeCanvasPathDef* _path;
/** A handle on a connection line to allow mouse interaction. */
struct Handle : public Gnome::Canvas::Group {
explicit Handle(Gnome::Canvas::Group& parent)
: Gnome::Canvas::Group(parent), shape(NULL), text(NULL) {}
~Handle() { delete shape; delete text; }
Gnome::Canvas::Shape* shape;
Gnome::Canvas::Text* text;
}* _handle;
uint32_t _color;
HandleStyle _handle_style;
bool _selected :1;
bool _show_arrowhead :1;
};
typedef std::list<boost::shared_ptr<Connection> > ConnectionList;
} // namespace FlowCanvas
#endif // FLOWCANVAS_CONNECTION_HPP
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