78 lines
1.9 KiB
C++
78 lines
1.9 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_STEP_H__
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#define __CANVAS_STEP_H__
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#include <cairomm/pattern.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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#include "gtkmm2ext/colors.h"
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namespace Cairo {
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class LinearGradient;
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}
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namespace ArdourCanvas
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{
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class Text;
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class LIBCANVAS_API StepButton : public Item
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{
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public:
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StepButton (Canvas*, double width, double height, Gtkmm2ext::Color c = Gtkmm2ext::rgba_to_color (0, 0, 0, 1.0));
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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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void set_value (double val);
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double value() const { return current_value; }
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void set_size (double w, double h);
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void set_highlight (bool);
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void set_color (Gtkmm2ext::Color);
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Text* text() const { return label; }
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private:
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double width;
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double height;
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Text* label;
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double current_value;
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bool prelight;
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bool highlight;
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bool dragging;
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bool clicking;
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double scale;
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Gtkmm2ext::HSV color;
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Cairo::RefPtr<Cairo::LinearGradient> inactive_pattern;
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Cairo::RefPtr<Cairo::LinearGradient> enabled_pattern;
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void create_patterns ();
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bool event_handler (GdkEvent*);
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};
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}
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#endif
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