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/*
* Copyright (C) 2013-2015 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2015-2016 Robin Gareus <robin@gareus.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef gtkmm2ext_persistent_tooltip_h
#define gtkmm2ext_persistent_tooltip_h
#include <sigc++/trackable.h>
#include "gtkmm2ext/visibility.h"
namespace Gtkmm2ext {
/** A class which offers a tooltip-like window which can be made to
* stay open during a drag.
*/
class LIBGTKMM2EXT_API PersistentTooltip : public sigc::trackable
{
public:
PersistentTooltip (Gtk::Widget *, bool draggable = false, int margin_y = 0);
virtual ~PersistentTooltip ();
void set_tip (std::string);
void set_font (Pango::FontDescription font);
void set_center_alignment (bool align_to_center);
virtual bool dragging () const;
static void set_tooltips_enabled (bool en) { _tooltips_enabled = en; }
static bool tooltips_enabled () { return _tooltips_enabled; }
private:
static bool _tooltips_enabled;
static unsigned int _tooltip_timeout;
bool timeout ();
void show ();
void hide ();
bool enter (GdkEventCrossing *);
bool leave (GdkEventCrossing *);
bool press (GdkEventButton *);
bool release (GdkEventButton *);
/** The widget that we are providing a tooltip for */
Gtk::Widget* _target;
/** Our window */
Gtk::Window* _window;
/** Our label */
Gtk::Label* _label;
/** allow to drag
*/
bool _draggable;
/** true if we are `dragging', in the sense that button 1
is being held over _target.
*/
bool _maybe_dragging;
/** Connection to a timeout used to open the tooltip */
sigc::connection _timeout;
/** The tip text */
std::string _tip;
Pango::FontDescription _font;
bool _align_to_center;
int _margin_y;
};
}
#endif
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