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/*
Copyright (C) 2011-2013 Paul Davis
Author: Carl Hetherington <cth@carlh.net>
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __CANVAS_RECTANGLE_H__
#define __CANVAS_RECTANGLE_H__
#include "canvas/visibility.h"
#include "canvas/item.h"
#include "canvas/types.h"
namespace ArdourCanvas
{
class LIBCANVAS_API Rectangle : public Item
{
public:
Rectangle (Canvas*);
Rectangle (Canvas*, Rect const &);
Rectangle (Item*);
Rectangle (Item*, Rect const &);
void render (Rect const &, Cairo::RefPtr<Cairo::Context>) const;
void compute_bounding_box () const;
Rect const & get () const {
return _rect;
}
Coord x0 () const {
return _rect.x0;
}
Coord y0 () const {
return _rect.y0;
}
Coord x1 () const {
return _rect.x1;
}
Coord y1 () const {
return _rect.y1;
}
void set (Rect const &);
void set_x0 (Coord);
void set_y0 (Coord);
void set_x1 (Coord);
void set_y1 (Coord);
/** return @param y as a floating point fraction of the overall
* height of the rectangle. @param y is in canvas coordinate space.
*
* A value of zero indicates that y is at the bottom of the
* rectangle; a value of 1 indicates that y is at the top.
*
* Will return zero if there is no bounding box or if y
* is outside the bounding box.
*/
double vertical_fraction (double y) const;
enum What {
NOTHING = 0x0,
LEFT = 0x1,
RIGHT = 0x2,
TOP = 0x4,
BOTTOM = 0x8,
ALL = LEFT|RIGHT|TOP|BOTTOM,
};
void set_outline_what (What);
void set_outline_all () { set_outline_what (ArdourCanvas::Rectangle::ALL); }
protected:
void render_self (Rect const &, Cairo::RefPtr<Cairo::Context>, Rect) const;
Rect get_self_for_render () const;
private:
/** Our rectangle; note that x0 may not always be less than x1
* and likewise with y0 and y1.
*/
Rect _rect;
What _outline_what;
};
}
#endif
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