105 lines
2.5 KiB
C++
105 lines
2.5 KiB
C++
/*
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Copyright (C) 2011-2013 Paul Davis
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Author: Carl Hetherington <cth@carlh.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __CANVAS_RECTANGLE_H__
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#define __CANVAS_RECTANGLE_H__
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#include "canvas/visibility.h"
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#include "canvas/item.h"
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#include "canvas/types.h"
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namespace ArdourCanvas
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{
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class LIBCANVAS_API Rectangle : public Item
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{
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public:
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Rectangle (Canvas*);
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Rectangle (Canvas*, Rect const &);
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Rectangle (Item*);
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Rectangle (Item*, Rect const &);
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void render (Rect const &, Cairo::RefPtr<Cairo::Context>) const;
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void compute_bounding_box () const;
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Rect const & get () const {
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return _rect;
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}
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Coord x0 () const {
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return _rect.x0;
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}
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Coord y0 () const {
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return _rect.y0;
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}
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Coord x1 () const {
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return _rect.x1;
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}
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Coord y1 () const {
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return _rect.y1;
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}
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void set (Rect const &);
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void set_x0 (Coord);
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void set_y0 (Coord);
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void set_x1 (Coord);
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void set_y1 (Coord);
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/** return @param y as a floating point fraction of the overall
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* height of the rectangle. @param y is in canvas coordinate space.
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*
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* A value of zero indicates that y is at the bottom of the
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* rectangle; a value of 1 indicates that y is at the top.
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*
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* Will return zero if there is no bounding box or if y
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* is outside the bounding box.
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*/
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double vertical_fraction (double y) const;
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enum What {
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NOTHING = 0x0,
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LEFT = 0x1,
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RIGHT = 0x2,
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TOP = 0x4,
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BOTTOM = 0x8,
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ALL = LEFT|RIGHT|TOP|BOTTOM,
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};
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void set_outline_what (What);
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void set_outline_all () { set_outline_what (ArdourCanvas::Rectangle::ALL); }
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protected:
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void render_self (Rect const &, Cairo::RefPtr<Cairo::Context>, Rect) const;
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Rect get_self_for_render () const;
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private:
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/** Our rectangle; note that x0 may not always be less than x1
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* and likewise with y0 and y1.
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*/
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Rect _rect;
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What _outline_what;
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};
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}
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#endif
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