1 /*
2 * Copyright (C) 2014-2018 Christopho, Solarus - http://www.solarus-games.org
3 *
4 * Solarus Quest Editor 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 3 of the License, or
7 * (at your option) any later version.
8 *
9 * Solarus Quest Editor 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.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17 #include "audio.h"
18 #include "quest.h"
19 #include "widgets/music_chooser.h"
20 #include <QHBoxLayout>
21
22 namespace SolarusEditor {
23
24 /**
25 * @brief Creates a music chooser.
26 * @param parent The parent object or nullptr.
27 */
MusicChooser(QWidget * parent)28 MusicChooser::MusicChooser(QWidget* parent) :
29 QWidget(parent),
30 music_selector(),
31 play_music_button(),
32 previous_selected_music_id(),
33 quest() {
34
35 music_selector.set_resource_type(ResourceType::MUSIC);
36 play_music_button.setIconSize(QSize(24, 24));
37
38 QHBoxLayout* layout = new QHBoxLayout(this);
39 layout->setMargin(0);
40
41 layout->addWidget(&music_selector);
42 layout->addWidget(&play_music_button);
43
44 update_play_button();
45 }
46
47 /**
48 * @brief Sets the quest whose resources will be shown.
49 * @param quest The quest.
50 */
set_quest(Quest & quest)51 void MusicChooser::set_quest(Quest& quest) {
52
53 this->quest = ?
54
55 music_selector.set_quest(quest);
56
57 connect(&play_music_button, SIGNAL(clicked(bool)),
58 this, SLOT(play_music_button_clicked()));
59 connect(&music_selector, SIGNAL(activated(QString)),
60 this, SLOT(music_selector_activated(QString)));
61 connect(&quest, SIGNAL(current_music_changed(QString)),
62 this, SLOT(quest_music_changed(QString)));
63
64 update_play_button();
65 }
66
67 /**
68 * @brief Returns the music selector contained in this widget.
69 * @return The music selector.
70 */
get_selector()71 ResourceSelector& MusicChooser::get_selector() {
72 return music_selector;
73 }
74
75 /**
76 * @brief Returns the music id in the selector.
77 * @return The selected music id.
78 */
get_selected_id()79 QString MusicChooser::get_selected_id() {
80 return music_selector.get_selected_id();
81 }
82
83 /**
84 * @brief Sets the selected music.
85 * @param music_id The new music id to select.
86 */
set_selected_id(const QString & music_id)87 void MusicChooser::set_selected_id(const QString& music_id) {
88
89 music_selector.set_selected_id(music_id);
90 update_play_button();
91 }
92
93 /**
94 * @brief Slot called when the user changes the music in the selector.
95 * @param music_id The new selected music id.
96 */
music_selector_activated(const QString & music_id)97 void MusicChooser::music_selector_activated(const QString& music_id) {
98
99 if (quest == nullptr) {
100 return;
101 }
102
103 const QString& old_music_id = previous_selected_music_id;
104 const QString& new_music_id = music_selector.get_selected_id();
105 if (new_music_id != old_music_id) {
106 // There is a change.
107 previous_selected_music_id = new_music_id;
108
109 // Stop playing any music if there is a change.
110 Audio::stop_music(*quest);
111
112 update_play_button();
113 }
114
115 emit activated(music_id);
116 }
117
118 /**
119 * @brief Slot called when the user clicks the play/stop music button.
120 */
play_music_button_clicked()121 void MusicChooser::play_music_button_clicked() {
122
123 if (quest == nullptr) {
124 return;
125 }
126
127 const QString& selected_music_id = music_selector.get_selected_id();
128 if (selected_music_id.isEmpty() ||
129 selected_music_id == "none" ||
130 selected_music_id == "same") {
131 return;
132 }
133
134 const QString& current_music_id = Audio::get_current_music_id(*quest);
135 if (current_music_id == selected_music_id) {
136 // This music is already playing, stop it.
137 Audio::stop_music(*quest);
138 }
139 else {
140 Audio::play_music(*quest, selected_music_id);
141 }
142 }
143
144 /**
145 * @brief Slot called when a music is being played or stopped.
146 * @param music_id The new current music or an empty string.
147 */
quest_music_changed(const QString & music_id)148 void MusicChooser::quest_music_changed(const QString& music_id) {
149
150 Q_UNUSED(music_id);
151 update_play_button();
152 }
153
154 /**
155 * @brief Updates the play/stop music button depending on the current
156 * selection and the music currently playing if any.
157 */
update_play_button()158 void MusicChooser::update_play_button() {
159
160 play_music_button.setIcon(QIcon(":/images/icon_start.png"));
161 play_music_button.setToolTip(tr("Play music"));
162
163 if (quest == nullptr) {
164 play_music_button.setEnabled(false);
165 return;
166 }
167
168 QString selected_music_id = music_selector.get_selected_id();
169 QString path = quest->get_music_path(selected_music_id);
170
171 if (selected_music_id.isEmpty() ||
172 selected_music_id == "none" ||
173 selected_music_id == "same" ||
174 !quest->exists(path)) {
175 play_music_button.setEnabled(false);
176 }
177 else {
178 play_music_button.setEnabled(true);
179 const QString& music_playing_id = Audio::get_current_music_id(*quest);
180 if (music_playing_id == selected_music_id) {
181 play_music_button.setIcon(QIcon(":/images/icon_stop.png"));
182 play_music_button.setToolTip(tr("Stop music"));
183 }
184 }
185 }
186
187 }
188
