2 Copyright (C) 2012 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <gtkmm/window.h>
21 #include <gtkmm/label.h>
22 #include "gtkmm2ext/persistent_tooltip.h"
24 #include "pbd/stacktrace.h"
30 using namespace Gtkmm2ext;
32 /** @param target The widget to provide the tooltip for */
33 PersistentTooltip::PersistentTooltip (Gtk::Widget* target, bool draggable, int margin_y)
37 , _draggable (draggable)
38 , _maybe_dragging (false)
39 , _align_to_center (true)
40 , _margin_y (margin_y)
42 target->signal_enter_notify_event().connect (sigc::mem_fun (*this, &PersistentTooltip::enter), false);
43 target->signal_leave_notify_event().connect (sigc::mem_fun (*this, &PersistentTooltip::leave), false);
44 target->signal_button_press_event().connect (sigc::mem_fun (*this, &PersistentTooltip::press), false);
45 target->signal_button_release_event().connect (sigc::mem_fun (*this, &PersistentTooltip::release), false);
48 PersistentTooltip::~PersistentTooltip ()
54 PersistentTooltip::enter (GdkEventCrossing *)
56 if (_timeout.connected()) {
59 _timeout = Glib::signal_timeout().connect (sigc::mem_fun (*this, &PersistentTooltip::timeout), 500);
64 PersistentTooltip::timeout ()
71 PersistentTooltip::leave (GdkEventCrossing *)
73 _timeout.disconnect ();
82 PersistentTooltip::press (GdkEventButton* ev)
84 if (ev->type == GDK_BUTTON_PRESS && ev->button == 1) {
85 _maybe_dragging = true;
92 PersistentTooltip::release (GdkEventButton* ev)
94 if (ev->type == GDK_BUTTON_RELEASE && ev->button == 1) {
95 _maybe_dragging = false;
102 PersistentTooltip::dragging () const
104 return _maybe_dragging && _draggable;
108 PersistentTooltip::hide ()
116 PersistentTooltip::show ()
123 _window = new Window (WINDOW_POPUP);
124 _window->set_name (X_("ContrastingPopup"));
125 _window->set_position (WIN_POS_MOUSE);
126 _window->set_decorated (false);
128 _label = manage (new Label);
129 _label->modify_font (_font);
130 _label->set_use_markup (true);
132 _window->set_border_width (6);
133 _window->add (*_label);
136 Gtk::Window* tlw = dynamic_cast<Gtk::Window*> (_target->get_toplevel ());
138 _window->set_transient_for (*tlw);
144 if (!_window->is_visible ()) {
146 int sw = gdk_screen_width ();
148 _target->get_window()->get_origin (rx, ry);
150 /* the window needs to be realized first
151 * for _window->get_width() to be correct.
155 if (sw < rx + _window->get_width()) {
156 /* right edge of window would be off the right edge of
157 the screen, so don't show it in the usual place.
159 rx = sw - _window->get_width();
160 _window->move (rx, ry + _target->get_height() + _margin_y);
162 if (_align_to_center) {
163 _window->move (rx + (_target->get_width () - _window->get_width ()) / 2, ry + _target->get_height());
165 _window->move (rx, ry + _target->get_height());
175 PersistentTooltip::set_tip (string t)
180 _label->set_markup (t);
185 PersistentTooltip::set_font (Pango::FontDescription font)
190 _label->modify_font (_font);
195 PersistentTooltip::set_center_alignment (bool align_to_center)
197 _align_to_center = align_to_center;