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 bool PersistentTooltip::_tooltips_enabled = true;
34 /** @param target The widget to provide the tooltip for */
35 PersistentTooltip::PersistentTooltip (Gtk::Widget* target, bool draggable, int margin_y)
39 , _draggable (draggable)
40 , _maybe_dragging (false)
41 , _align_to_center (true)
42 , _margin_y (margin_y)
44 target->signal_enter_notify_event().connect (sigc::mem_fun (*this, &PersistentTooltip::enter), false);
45 target->signal_leave_notify_event().connect (sigc::mem_fun (*this, &PersistentTooltip::leave), false);
46 target->signal_button_press_event().connect (sigc::mem_fun (*this, &PersistentTooltip::press), false);
47 target->signal_button_release_event().connect (sigc::mem_fun (*this, &PersistentTooltip::release), false);
50 PersistentTooltip::~PersistentTooltip ()
56 PersistentTooltip::enter (GdkEventCrossing *)
58 if (_timeout.connected()) {
61 _timeout = Glib::signal_timeout().connect (sigc::mem_fun (*this, &PersistentTooltip::timeout), 500);
66 PersistentTooltip::timeout ()
73 PersistentTooltip::leave (GdkEventCrossing *)
75 _timeout.disconnect ();
84 PersistentTooltip::press (GdkEventButton* ev)
86 if (ev->type == GDK_BUTTON_PRESS && ev->button == 1) {
87 _maybe_dragging = true;
94 PersistentTooltip::release (GdkEventButton* ev)
96 if (ev->type == GDK_BUTTON_RELEASE && ev->button == 1) {
97 _maybe_dragging = false;
104 PersistentTooltip::dragging () const
106 return _maybe_dragging && _draggable;
110 PersistentTooltip::hide ()
118 PersistentTooltip::show ()
120 if (_tip.empty() || !_tooltips_enabled) {
125 _window = new Window (WINDOW_POPUP);
126 _window->set_name (X_("ContrastingPopup"));
127 _window->set_position (WIN_POS_MOUSE);
128 _window->set_decorated (false);
130 _label = manage (new Label);
131 _label->modify_font (_font);
132 _label->set_use_markup (true);
134 _window->set_border_width (6);
135 _window->add (*_label);
138 Gtk::Window* tlw = dynamic_cast<Gtk::Window*> (_target->get_toplevel ());
140 _window->set_transient_for (*tlw);
146 if (!_window->is_visible ()) {
148 int sw = gdk_screen_width ();
150 _target->get_window()->get_origin (rx, ry);
152 /* the window needs to be realized first
153 * for _window->get_width() to be correct.
157 if (sw < rx + _window->get_width()) {
158 /* right edge of window would be off the right edge of
159 the screen, so don't show it in the usual place.
161 rx = sw - _window->get_width();
162 _window->move (rx, ry + _target->get_height() + _margin_y);
164 if (_align_to_center) {
165 _window->move (rx + (_target->get_width () - _window->get_width ()) / 2, ry + _target->get_height());
167 _window->move (rx, ry + _target->get_height());
177 PersistentTooltip::set_tip (string t)
182 _label->set_markup (t);
187 PersistentTooltip::set_font (Pango::FontDescription font)
192 _label->modify_font (_font);
197 PersistentTooltip::set_center_alignment (bool align_to_center)
199 _align_to_center = align_to_center;