1/***************************************************************************
2 * Copyright (C) 2005-2014 by the Quassel Project *
3 * devel@quassel-irc.org *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) version 3. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
19 ***************************************************************************/
20
21#include <QMessageBox>
22#include <QPushButton>
23
24#include "settingsdlg.h"
25
26#include "client.h"
27#include "iconloader.h"
28
29SettingsDlg::SettingsDlg(QWidget *parent)
30 : QDialog(parent),
31 _currentPage(0)
32{
33 ui.setupUi(this);
34 setModal(true);
35 setAttribute(Qt::WA_DeleteOnClose, true);
36 setWindowIcon(SmallIcon("configure"));
37
38 updateGeometry();
39
40 ui.settingsTree->setRootIsDecorated(false);
41
42 connect(ui.settingsTree, SIGNAL(itemSelectionChanged()), this, SLOT(itemSelected()));
43 connect(ui.buttonBox, SIGNAL(clicked(QAbstractButton *)), this, SLOT(buttonClicked(QAbstractButton *)));
44
45 connect(Client::instance(), SIGNAL(coreConnectionStateChanged(bool)), SLOT(coreConnectionStateChanged()));
46
47 setButtonStates();
48}
49
50
51void SettingsDlg::coreConnectionStateChanged()
52{
53 for (int i = 0; i < ui.settingsTree->topLevelItemCount(); i++) {
54 QTreeWidgetItem *catItem = ui.settingsTree->topLevelItem(i);
55 for (int j = 0; j < catItem->childCount(); j++) {
56 QTreeWidgetItem *item = catItem->child(j);
57 setItemState(item);
58 }
59 setItemState(catItem);
60 }
61}
62
63
64void SettingsDlg::setItemState(QTreeWidgetItem *item)
65{
66 SettingsPage *sp = qobject_cast<SettingsPage *>(item->data(0, SettingsPageRole).value<QObject *>());
67 Q_ASSERT(sp);
68 item->setDisabled(!Client::isConnected() && sp->needsCoreConnection());
69}
70
71
72void SettingsDlg::registerSettingsPage(SettingsPage *sp)
73{
74 sp->setParent(ui.settingsStack);
75 ui.settingsStack->addWidget(sp);
76
77 connect(sp, SIGNAL(changed(bool)), this, SLOT(setButtonStates()));
78
79 QTreeWidgetItem *cat;
80 QList<QTreeWidgetItem *> cats = ui.settingsTree->findItems(sp->category(), Qt::MatchExactly);
81 if (!cats.count()) {
82 cat = new QTreeWidgetItem(ui.settingsTree, QStringList(sp->category()));
83 cat->setExpanded(true);
84 cat->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
85 }
86 else {
87 cat = cats[0];
88 }
89
90 QTreeWidgetItem *item;
91 if (sp->title().isEmpty())
92 item = cat;
93 else
94 item = new QTreeWidgetItem(cat, QStringList(sp->title()));
95
96 item->setData(0, SettingsPageRole, QVariant::fromValue<QObject *>(sp));
97 ui.settingsTree->setMinimumWidth(ui.settingsTree->header()->sectionSizeHint(0) + 5);
98 pageIsLoaded[sp] = false;
99 if (!ui.settingsTree->selectedItems().count())
100 ui.settingsTree->setCurrentItem(item);
101
102 setItemState(item);
103}
104
105
106void SettingsDlg::selectPage(SettingsPage *sp)
107{
108 if (!sp) {
109 _currentPage = 0;
110 ui.settingsStack->setCurrentIndex(0);
111 ui.pageTitle->setText(tr("Settings"));
112 return;
113 }
114
115 if (!pageIsLoaded[sp]) {
116 sp->load();
117 pageIsLoaded[sp] = true;
118 }
119
120 if (sp != currentPage() && currentPage() != 0 && currentPage()->hasChanged()) {
121 int ret = QMessageBox::warning(this, tr("Save changes"),
122 tr("There are unsaved changes on the current configuration page. Would you like to apply your changes now?"),
123 QMessageBox::Discard|QMessageBox::Save|QMessageBox::Cancel, QMessageBox::Cancel);
124 if (ret == QMessageBox::Save) {
125 if (!applyChanges()) sp = currentPage();
126 }
127 else if (ret == QMessageBox::Discard) {
128 undoChanges();
129 }
130 else sp = currentPage();
131 }
132
133 if (sp != currentPage()) {
134 if (sp->title().isEmpty()) {
135 ui.pageTitle->setText(sp->category());
136 setWindowTitle(tr("Configure %1").arg(sp->category()));
137 }
138 else {
139 ui.pageTitle->setText(sp->title());
140 setWindowTitle(tr("Configure %1").arg(sp->title()));
141 }
142
143 ui.settingsStack->setCurrentWidget(sp);
144 _currentPage = sp;
145 }
146 setButtonStates();
147}
148
149
150void SettingsDlg::itemSelected()
151{
152 QList<QTreeWidgetItem *> items = ui.settingsTree->selectedItems();
153 SettingsPage *sp = 0;
154 if (!items.isEmpty()) {
155 sp = qobject_cast<SettingsPage *>(items[0]->data(0, SettingsPageRole).value<QObject *>());
156 }
157 selectPage(sp);
158}
159
160
161void SettingsDlg::setButtonStates()
162{
163 SettingsPage *sp = currentPage();
164 ui.buttonBox->button(QDialogButtonBox::Apply)->setEnabled(sp && sp->hasChanged());
165 ui.buttonBox->button(QDialogButtonBox::Reset)->setEnabled(sp && sp->hasChanged());
166 ui.buttonBox->button(QDialogButtonBox::RestoreDefaults)->setEnabled(sp && sp->hasDefaults());
167}
168
169
170void SettingsDlg::buttonClicked(QAbstractButton *button)
171{
172 switch (ui.buttonBox->standardButton(button)) {
173 case QDialogButtonBox::Ok:
174 if (currentPage() && currentPage()->hasChanged()) {
175 if (applyChanges()) accept();
176 }
177 else accept();
178 break;
179 case QDialogButtonBox::Apply:
180 applyChanges();
181 break;
182 case QDialogButtonBox::Cancel:
183 undoChanges();
184 reject();
185 break;
186 case QDialogButtonBox::Reset:
187 reload();
188 break;
189 case QDialogButtonBox::RestoreDefaults:
190 loadDefaults();
191 break;
192 default:
193 break;
194 }
195}
196
197
198bool SettingsDlg::applyChanges()
199{
200 if (!currentPage()) return false;
201 if (currentPage()->aboutToSave()) {
202 currentPage()->save();
203 return true;
204 }
205 return false;
206}
207
208
209void SettingsDlg::undoChanges()
210{
211 if (currentPage()) {
212 currentPage()->load();
213 }
214}
215
216
217void SettingsDlg::reload()
218{
219 if (!currentPage()) return;
220 int ret = QMessageBox::question(this, tr("Reload Settings"), tr("Do you like to reload the settings, undoing your changes on this page?"),
221 QMessageBox::Yes|QMessageBox::No, QMessageBox::No);
222 if (ret == QMessageBox::Yes) {
223 currentPage()->load();
224 }
225}
226
227
228void SettingsDlg::loadDefaults()
229{
230 if (!currentPage()) return;
231 int ret = QMessageBox::question(this, tr("Restore Defaults"), tr("Do you like to restore the default values for this page?"),
232 QMessageBox::RestoreDefaults|QMessageBox::Cancel, QMessageBox::Cancel);
233 if (ret == QMessageBox::RestoreDefaults) {
234 currentPage()->defaults();
235 }
236}
237