Paul Davis
cc074c66fa
git-svn-id: svn://localhost/ardour2/branches/3.0@8775 d708f5d6-7413-0410-9779-e7cbd77b26cf
94 lines
2.4 KiB
C++
94 lines
2.4 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_pixfader_h__
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#define __gtkmm2ext_pixfader_h__
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#include <cmath>
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#include <stdint.h>
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#include <gtkmm/drawingarea.h>
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#include <gtkmm/adjustment.h>
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#include <gdkmm.h>
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namespace Gtkmm2ext {
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class PixFader : public Gtk::DrawingArea
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{
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public:
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PixFader (Glib::RefPtr<Gdk::Pixbuf> belt_image, Gtk::Adjustment& adjustment, int orientation, int);
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virtual ~PixFader ();
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void set_fader_length (int);
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void set_border_colors (uint32_t rgba_left, uint32_t rgba_right);
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protected:
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Gtk::Adjustment& adjustment;
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void on_size_request (GtkRequisition*);
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bool on_expose_event (GdkEventExpose*);
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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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enum Orientation {
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VERT=1,
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HORIZ=2,
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};
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private:
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Cairo::RefPtr<Cairo::Context> belt_context;
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Cairo::RefPtr<Cairo::ImageSurface> belt_surface;
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Glib::RefPtr<Gdk::Pixbuf> pixbuf;
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int span, girth;
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int _orien;
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float left_r;
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float left_g;
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float left_b;
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float right_r;
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float right_g;
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float right_b;
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GdkRectangle view;
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GdkWindow* grab_window;
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double grab_loc;
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double grab_start;
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int last_drawn;
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bool dragging;
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float default_value;
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int unity_loc;
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void adjustment_changed ();
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int display_span ();
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void set_adjustment_from_event (GdkEventButton *);
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static int fine_scale_modifier;
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static int extra_fine_scale_modifier;
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};
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} /* namespace */
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#endif /* __gtkmm2ext_pixfader_h__ */
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