src/qtui/settingsdlg.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2018 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 <QIcon>
  22 #include <QMessageBox>
  23 #include <QPushButton>
  24
  25 #include "settingsdlg.h"
  26
  27 #include "client.h"
  28
  29 SettingsDlg::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(QIcon::fromTheme("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
  51 void 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
  64 void SettingsDlg::setItemState(QTreeWidgetItem *item)
  65 {
  66     SettingsPage *sp = qobject_cast<SettingsPage *>(item->data(0, SettingsPageRole).value<QObject *>());
  67     Q_ASSERT(sp);
  68     bool disabledDueToConnection = !Client::isConnected() && sp->needsCoreConnection();
  69     bool disabledDueToOwnChoice = !sp->isSelectable();
  70     item->setDisabled(disabledDueToConnection || disabledDueToOwnChoice);
  71 }
  72
  73
  74 void SettingsDlg::registerSettingsPage(SettingsPage *sp)
  75 {
  76     sp->setParent(ui.settingsStack);
  77     ui.settingsStack->addWidget(sp);
  78
  79     connect(sp, SIGNAL(changed(bool)), this, SLOT(setButtonStates()));
  80
  81     QTreeWidgetItem *cat;
  82     QList<QTreeWidgetItem *> cats = ui.settingsTree->findItems(sp->category(), Qt::MatchExactly);
  83     if (!cats.count()) {
  84         cat = new QTreeWidgetItem(ui.settingsTree, QStringList(sp->category()));
  85         cat->setExpanded(true);
  86         cat->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
  87     }
  88     else {
  89         cat = cats[0];
  90     }
  91
  92     QTreeWidgetItem *item;
  93     if (sp->title().isEmpty())
  94         item = cat;
  95     else
  96         item = new QTreeWidgetItem(cat, QStringList(sp->title()));
  97
  98     item->setData(0, SettingsPageRole, QVariant::fromValue<QObject *>(sp));
  99     pageIsLoaded[sp] = false;
 100     if (!ui.settingsTree->selectedItems().count())
 101         ui.settingsTree->setCurrentItem(item);
 102
 103     setItemState(item);
 104 }
 105
 106
 107 void SettingsDlg::selectPage(SettingsPage *sp)
 108 {
 109     if (!sp) {
 110         _currentPage = 0;
 111         ui.settingsStack->setCurrentIndex(0);
 112         ui.pageTitle->setText(tr("Settings"));
 113         return;
 114     }
 115
 116     if (!pageIsLoaded[sp]) {
 117         sp->load();
 118         pageIsLoaded[sp] = true;
 119     }
 120
 121     if (sp != currentPage() && currentPage() != 0 && currentPage()->hasChanged()) {
 122         int ret = QMessageBox::warning(this, tr("Save changes"),
 123             tr("There are unsaved changes on the current configuration page. Would you like to apply your changes now?"),
 124             QMessageBox::Discard|QMessageBox::Save|QMessageBox::Cancel, QMessageBox::Cancel);
 125         if (ret == QMessageBox::Save) {
 126             if (!applyChanges()) sp = currentPage();
 127         }
 128         else if (ret == QMessageBox::Discard) {
 129             undoChanges();
 130         }
 131         else sp = currentPage();
 132     }
 133
 134     if (sp != currentPage()) {
 135         if (sp->title().isEmpty()) {
 136             ui.pageTitle->setText(sp->category());
 137             setWindowTitle(tr("Configure %1").arg(sp->category()));
 138         }
 139         else {
 140             ui.pageTitle->setText(sp->title());
 141             setWindowTitle(tr("Configure %1").arg(sp->title()));
 142         }
 143
 144         ui.settingsStack->setCurrentWidget(sp);
 145         _currentPage = sp;
 146     }
 147     setButtonStates();
 148 }
 149
 150
 151 void SettingsDlg::itemSelected()
 152 {
 153     QList<QTreeWidgetItem *> items = ui.settingsTree->selectedItems();
 154     SettingsPage *sp = 0;
 155     if (!items.isEmpty()) {
 156         sp = qobject_cast<SettingsPage *>(items[0]->data(0, SettingsPageRole).value<QObject *>());
 157     }
 158     selectPage(sp);
 159 }
 160
 161
 162 void SettingsDlg::setButtonStates()
 163 {
 164     SettingsPage *sp = currentPage();
 165     ui.buttonBox->button(QDialogButtonBox::Apply)->setEnabled(sp && sp->hasChanged());
 166     ui.buttonBox->button(QDialogButtonBox::Reset)->setEnabled(sp && sp->hasChanged());
 167     ui.buttonBox->button(QDialogButtonBox::RestoreDefaults)->setEnabled(sp && sp->hasDefaults());
 168 }
 169
 170
 171 void SettingsDlg::buttonClicked(QAbstractButton *button)
 172 {
 173     switch (ui.buttonBox->standardButton(button)) {
 174     case QDialogButtonBox::Ok:
 175         if (currentPage() && currentPage()->hasChanged()) {
 176             if (applyChanges()) accept();
 177         }
 178         else accept();
 179         break;
 180     case QDialogButtonBox::Apply:
 181         applyChanges();
 182         break;
 183     case QDialogButtonBox::Cancel:
 184         undoChanges();
 185         reject();
 186         break;
 187     case QDialogButtonBox::Reset:
 188         reload();
 189         break;
 190     case QDialogButtonBox::RestoreDefaults:
 191         loadDefaults();
 192         break;
 193     default:
 194         break;
 195     }
 196 }
 197
 198
 199 bool SettingsDlg::applyChanges()
 200 {
 201     if (!currentPage()) return false;
 202     if (currentPage()->aboutToSave()) {
 203         currentPage()->save();
 204         return true;
 205     }
 206     return false;
 207 }
 208
 209
 210 void SettingsDlg::undoChanges()
 211 {
 212     if (currentPage()) {
 213         currentPage()->load();
 214     }
 215 }
 216
 217
 218 void SettingsDlg::reload()
 219 {
 220     if (!currentPage()) return;
 221     int ret = QMessageBox::question(this, tr("Reload Settings"), tr("Do you like to reload the settings, undoing your changes on this page?"),
 222         QMessageBox::Yes|QMessageBox::No, QMessageBox::No);
 223     if (ret == QMessageBox::Yes) {
 224         currentPage()->load();
 225     }
 226 }
 227
 228
 229 void SettingsDlg::loadDefaults()
 230 {
 231     if (!currentPage()) return;
 232     int ret = QMessageBox::question(this, tr("Restore Defaults"), tr("Do you like to restore the default values for this page?"),
 233         QMessageBox::RestoreDefaults|QMessageBox::Cancel, QMessageBox::Cancel);
 234     if (ret == QMessageBox::RestoreDefaults) {
 235         currentPage()->defaults();
 236     }
 237 }