94 lines
2.2 KiB
C++
94 lines
2.2 KiB
C++
/*
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* Copyright (C) 2008 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2017 Robin Gareus <robin@gareus.org>
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*
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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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*
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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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef _WIDGETS_SCROOMER_H_
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#define _WIDGETS_SCROOMER_H_
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#include <gdkmm.h>
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#include <gtkmm/drawingarea.h>
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#include <gtkmm/adjustment.h>
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#include "widgets/visibility.h"
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namespace ArdourWidgets {
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class LIBWIDGETS_API Scroomer : public Gtk::DrawingArea
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{
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public:
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enum Component {
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TopBase = 0,
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Handle1 = 1,
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Slider = 2,
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Handle2 = 3,
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BottomBase = 4,
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Total = 5,
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None = 6
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};
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Scroomer(Gtk::Adjustment& adjustment);
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~Scroomer();
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bool on_motion_notify_event (GdkEventMotion*);
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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_scroll_event (GdkEventScroll*);
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virtual void on_size_allocate (Gtk::Allocation&);
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void set_comp_rect(GdkRectangle&, Component) const;
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Component point_in(double point) const;
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void set_min_page_size(double page_size);
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int get_handle_size() { return handle_size; }
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inline int position_of(Component comp) { return position[comp]; }
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sigc::signal0<void> DragStarting;
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sigc::signal0<void> DragFinishing;
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sigc::signal0<void> DoubleClicked;
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protected:
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Gtk::Adjustment& adj;
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private:
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struct UpdateRect {
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GdkRectangle rect;
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Component first_comp;
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};
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void update();
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void adjustment_changed ();
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int position[6];
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int old_pos[6];
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int handle_size;
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double min_page_size;
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GdkWindow* grab_window;
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Component grab_comp;
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double grab_y;
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double unzoomed_val;
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double unzoomed_page;
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bool pinch;
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};
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} /* end namespace */
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#endif
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