112 lines
3.1 KiB
C++
112 lines
3.1 KiB
C++
/*
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Copyright (C) 2006 Paul Davis
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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 __gtkmm2ext_fader_h__
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#define __gtkmm2ext_fader_h__
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#include <cmath>
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#include <stdint.h>
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#include <gtkmm/adjustment.h>
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#include <gdkmm.h>
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#include <gtkmm2ext/binding_proxy.h>
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#include "gtkmm2ext/cairo_widget.h"
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#include <boost/shared_ptr.hpp>
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#include "gtkmm2ext/visibility.h"
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namespace Gtkmm2ext {
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class LIBGTKMM2EXT_API Fader : public CairoWidget
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{
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public:
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Fader (Gtk::Adjustment& adjustment,
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const Glib::RefPtr<Gdk::Pixbuf>& face_pixbuf,
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const Glib::RefPtr<Gdk::Pixbuf>& active_face_pixbuf,
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const Glib::RefPtr<Gdk::Pixbuf>& underlay_pixbuf,
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const Glib::RefPtr<Gdk::Pixbuf>& handle_pixbuf,
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const Glib::RefPtr<Gdk::Pixbuf>& active_handle_pixbuf,
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int min_pos_x,
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int min_pos_y,
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int max_pos_x,
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int max_pos_y,
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bool read_only);
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virtual ~Fader ();
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void set_controllable (boost::shared_ptr<PBD::Controllable> c) { binding_proxy.set_controllable (c); }
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void set_default_value (float);
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void set_touch_cursor (const Glib::RefPtr<Gdk::Pixbuf>& touch_cursor);
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void get_image_scales (double &x_scale, double &y_scale);
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protected:
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void get_handle_position (double& x, double& y);
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void on_size_request (GtkRequisition*);
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void on_size_allocate (Gtk::Allocation& alloc);
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void render (cairo_t* cr, cairo_rectangle_t*);
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bool on_button_press_event (GdkEventButton*);
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bool on_button_release_event (GdkEventButton*);
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bool on_motion_notify_event (GdkEventMotion*);
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bool on_scroll_event (GdkEventScroll* ev);
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bool on_enter_notify_event (GdkEventCrossing* ev);
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bool on_leave_notify_event (GdkEventCrossing* ev);
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protected:
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Gtk::Adjustment& adjustment;
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BindingProxy binding_proxy;
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private:
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const Glib::RefPtr<Gdk::Pixbuf> _face_pixbuf;
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const Glib::RefPtr<Gdk::Pixbuf> _active_face_pixbuf;
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const Glib::RefPtr<Gdk::Pixbuf> _underlay_pixbuf;
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const Glib::RefPtr<Gdk::Pixbuf> _handle_pixbuf;
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const Glib::RefPtr<Gdk::Pixbuf> _active_handle_pixbuf;
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int _min_pos_x;
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int _min_pos_y;
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int _max_pos_x;
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int _max_pos_y;
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bool _hovering;
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GdkWindow* _grab_window;
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Gdk::Cursor *_touch_cursor;
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double _grab_start_mouse_x;
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double _grab_start_mouse_y;
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double _grab_start_handle_x;
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double _grab_start_handle_y;
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double _last_drawn_x;
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double _last_drawn_y;
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bool _dragging;
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float _default_value;
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bool _read_only;
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void adjustment_changed ();
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void update_unity_position ();
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};
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} /* namespace */
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#endif /* __gtkmm2ext_fader_h__ */
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