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livetrax/libs/widgets/searchbar.cc

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/*
* Copyright (C) 2017 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.
*/
#include <iostream>
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#include "gtkmm2ext/keyboard.h"
#include "widgets/searchbar.h"
using namespace ArdourWidgets;
SearchBar::SearchBar (const std::string& label, bool icon_resets)
: placeholder_text (label)
, icon_click_resets (icon_resets)
{
set_text (placeholder_text);
set_alignment (Gtk::ALIGN_CENTER);
signal_key_press_event().connect (sigc::mem_fun (*this, &SearchBar::key_press_event));
signal_focus_in_event().connect (sigc::mem_fun (*this, &SearchBar::focus_in_event));
signal_focus_out_event().connect (sigc::mem_fun (*this, &SearchBar::focus_out_event));
signal_changed().connect (sigc::mem_fun (*this, &SearchBar::search_string_changed));
signal_icon_release().connect (sigc::mem_fun (*this, &SearchBar::icon_clicked_event));
}
bool
SearchBar::focus_in_event (GdkEventFocus*)
{
if (get_text ().compare (placeholder_text) == 0) {
set_text ("");
}
icon = get_icon_pixbuf ();
if (icon) {
set_icon_from_pixbuf (Glib::RefPtr<Gdk::Pixbuf> ());
}
return true;
}
bool
SearchBar::focus_out_event (GdkEventFocus*)
{
if (get_text ().empty ()) {
set_text (placeholder_text);
}
if (icon) {
set_icon_from_pixbuf (icon);
icon.reset ();
}
search_string_changed ();
return false;
}
bool
SearchBar::key_press_event (GdkEventKey* ev)
{
switch (ev->keyval) {
case GDK_Escape:
set_text (placeholder_text);
return true;
default:
break;
}
return false;
}
void
SearchBar::icon_clicked_event (Gtk::EntryIconPosition, const GdkEventButton*)
{
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if (icon_click_resets) {
reset ();
}
else {
search_string_changed ();
}
}
void
SearchBar::search_string_changed () const
{
const std::string& text = get_text ();
if (text.empty() || text.compare (placeholder_text) == 0) {
sig_search_string_updated ("");
return;
}
sig_search_string_updated (text);
}
void
SearchBar::reset ()
{
set_text (placeholder_text);
search_string_changed ();
}