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Code Issues Projects Releases Wiki Activity

step button for Canvas (used by BeatBox GUI)

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Paul Davis 2018-08-13 08:22:52 -04:00
parent 6b39febabc
commit e35e5ff3e5
2 changed files with 322 additions and 0 deletions
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libs/canvas/canvas/step_button.h Normal file
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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_STEP_H__
#define __CANVAS_STEP_H__
#include <cairomm/pattern.h>
#include "canvas/visibility.h"
#include "canvas/item.h"
#include "canvas/types.h"
#include "gtkmm2ext/colors.h"
namespace Cairo {
class LinearGradient;
}
namespace ArdourCanvas
{
class Text;
class LIBCANVAS_API StepButton : public Item
{
public:
StepButton (Canvas*, double width, double height, Gtkmm2ext::Color c = Gtkmm2ext::rgba_to_color (0, 0, 0, 1.0));
void render (Rect const &, Cairo::RefPtr<Cairo::Context>) const;
void compute_bounding_box () const;
void set_value (double val);
double value() const { return current_value; }
void set_size (double w, double h);
void set_highlight (bool);
void set_color (Gtkmm2ext::Color);
Text* text() const { return label; }
private:
double width;
double height;
Text* label;
double current_value;
bool prelight;
bool highlight;
bool dragging;
bool clicking;
double scale;
Gtkmm2ext::HSV color;
Cairo::RefPtr<Cairo::LinearGradient> inactive_pattern;
Cairo::RefPtr<Cairo::LinearGradient> enabled_pattern;
void create_patterns ();
bool event_handler (GdkEvent*);
};
}
#endif