2012-06-11 17:21:10 -04:00
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/*
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Copyright (C) 2012 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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#include <gtkmm/window.h>
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#include <gtkmm/label.h>
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#include "gtkmm2ext/persistent_tooltip.h"
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#include "i18n.h"
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using namespace std;
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using namespace Gtk;
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using namespace Gtkmm2ext;
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/** @param target The widget to provide the tooltip for */
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2015-04-24 19:16:39 -04:00
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PersistentTooltip::PersistentTooltip (Gtk::Widget* target, int margin_y)
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2012-06-11 17:21:10 -04:00
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: _target (target)
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, _window (0)
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, _label (0)
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, _maybe_dragging (false)
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2015-04-24 19:16:39 -04:00
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, _margin_y (margin_y)
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2012-06-11 17:21:10 -04:00
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{
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target->signal_enter_notify_event().connect (sigc::mem_fun (*this, &PersistentTooltip::enter), false);
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target->signal_leave_notify_event().connect (sigc::mem_fun (*this, &PersistentTooltip::leave), false);
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target->signal_button_press_event().connect (sigc::mem_fun (*this, &PersistentTooltip::press), false);
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target->signal_button_release_event().connect (sigc::mem_fun (*this, &PersistentTooltip::release), false);
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}
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PersistentTooltip::~PersistentTooltip ()
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{
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delete _window;
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}
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bool
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PersistentTooltip::enter (GdkEventCrossing *)
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{
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2013-07-16 16:44:54 -04:00
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if (_timeout.connected()) {
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leave(NULL);
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}
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2012-06-11 17:21:10 -04:00
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_timeout = Glib::signal_timeout().connect (sigc::mem_fun (*this, &PersistentTooltip::timeout), 500);
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return false;
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}
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bool
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PersistentTooltip::timeout ()
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{
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show ();
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return false;
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}
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bool
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PersistentTooltip::leave (GdkEventCrossing *)
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{
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if (!dragging ()) {
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_timeout.disconnect ();
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2012-06-11 17:21:10 -04:00
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hide ();
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}
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return false;
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}
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bool
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PersistentTooltip::press (GdkEventButton* ev)
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{
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if (ev->type == GDK_BUTTON_PRESS && ev->button == 1) {
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_maybe_dragging = true;
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}
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return false;
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}
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bool
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PersistentTooltip::release (GdkEventButton* ev)
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{
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if (ev->type == GDK_BUTTON_RELEASE && ev->button == 1) {
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_maybe_dragging = false;
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}
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return false;
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}
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bool
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PersistentTooltip::dragging () const
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{
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return _maybe_dragging;
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}
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void
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PersistentTooltip::hide ()
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{
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if (_window) {
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_window->hide ();
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}
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}
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void
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PersistentTooltip::show ()
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{
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if (_tip.empty()) {
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return;
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}
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2012-06-11 17:21:10 -04:00
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if (!_window) {
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_window = new Window (WINDOW_POPUP);
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_window->set_name (X_("ContrastingPopup"));
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_window->set_position (WIN_POS_MOUSE);
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_window->set_decorated (false);
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_label = manage (new Label);
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_label->set_use_markup (true);
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_window->set_border_width (6);
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_window->add (*_label);
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_label->show ();
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Gtk::Window* tlw = dynamic_cast<Gtk::Window*> (_target->get_toplevel ());
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if (tlw) {
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_window->set_transient_for (*tlw);
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}
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}
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set_tip (_tip);
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2012-12-25 17:23:13 -05:00
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if (!_window->is_visible ()) {
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int rx, ry, sw;
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sw= gdk_screen_width();
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_target->get_window()->get_origin (rx, ry);
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_window->move (rx, ry + _target->get_height() + _margin_y);
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2012-12-25 17:23:13 -05:00
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_window->present ();
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/* the window needs to be realized first
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* for _window->get_width() to be correct.
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*/
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if (sw < rx + _window->get_width()) {
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rx = sw - _window->get_width();
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_window->move (rx, ry + _target->get_height());
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}
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}
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2012-06-11 17:21:10 -04:00
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}
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void
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PersistentTooltip::set_tip (string t)
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{
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_tip = t;
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if (_label) {
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_label->set_markup (t);
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}
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}
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