Setting a proper minimum width for the settings treewidget according to it's content

[quassel.git] / src / qtui / settingsdlg.cpp

diff --git a/src/qtui/settingsdlg.cpp b/src/qtui/settingsdlg.cpp
index 422f64d..4bcd7d8 100644 (file)
--- a/src/qtui/settingsdlg.cpp
+++ b/src/qtui/settingsdlg.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2005-07 by the Quassel IRC Team                         *
+ *   Copyright (C) 2005-08 by the Quassel Project                          *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -20,71 +20,151 @@
 
 #include "settingsdlg.h"
 
-SettingsDlg::SettingsDlg(QWidget *parent) : QDialog(parent) {
+#include "iconloader.h"
+
+SettingsDlg::SettingsDlg(QWidget *parent)
+  : QDialog(parent),
+    _currentPage(0)
+{
   ui.setupUi(this);
+  setModal(true);
+  setAttribute(Qt::WA_DeleteOnClose, true);
+  setWindowIcon(SmallIcon("configure"));
+
+  updateGeometry();
 
-  ui.settingsFrame->setWidgetResizable(true);
-  ui.settingsFrame->setWidget(ui.settingsStack);
   ui.settingsTree->setRootIsDecorated(false);
 
   connect(ui.settingsTree, SIGNAL(itemSelectionChanged()), this, SLOT(itemSelected()));
   connect(ui.buttonBox, SIGNAL(clicked(QAbstractButton *)), this, SLOT(buttonClicked(QAbstractButton *)));
-}
 
+  setButtonStates();
+}
 
 void SettingsDlg::registerSettingsPage(SettingsPage *sp) {
-  sp->setParent(this);
+  sp->setParent(ui.settingsStack);
   ui.settingsStack->addWidget(sp);
 
+  connect(sp, SIGNAL(changed(bool)), this, SLOT(setButtonStates()));
+
   QTreeWidgetItem *cat;
   QList<QTreeWidgetItem *> cats = ui.settingsTree->findItems(sp->category(), Qt::MatchExactly);
   if(!cats.count()) {
     cat = new QTreeWidgetItem(ui.settingsTree, QStringList(sp->category()));
     cat->setExpanded(true);
     cat->setFlags(Qt::ItemIsEnabled);
-  } else cat = cats[0];
-  QTreeWidgetItem *p = new QTreeWidgetItem(cat, QStringList(sp->title()));
-  pages[QString("%1$%2").arg(sp->category(), sp->title())] = sp;
+  } else {
+    cat = cats[0];
+  }
+  QTreeWidgetItem *item = new QTreeWidgetItem(cat, QStringList(sp->title()));
+  item->setData(0, SettingsPageRole, qVariantFromValue<QObject *>(sp));
+  ui.settingsTree->setMinimumWidth(ui.settingsTree->header()->sectionSizeHint(0) + 5);
+  pageIsLoaded[sp] = false;
 }
 
-void SettingsDlg::selectPage(const QString &cat, const QString &title) {
-  QWidget *w = pages[QString("%1$%2").arg(cat, title)];
-  Q_ASSERT(w);
-  ui.settingsStack->setCurrentWidget(w);
+void SettingsDlg::selectPage(SettingsPage *sp) {
+  if(!sp) {
+    _currentPage = 0;
+    ui.settingsStack->setCurrentIndex(0);
+    ui.pageTitle->setText(tr("Settings"));
+    return;
+  }
+
+  if(!pageIsLoaded[sp]) {
+    sp->load();
+    pageIsLoaded[sp] = true;
+  }
+
+  if(sp != currentPage() && currentPage() != 0 && currentPage()->hasChanged()) {
+    int ret = QMessageBox::warning(this, tr("Save changes"),
+                                  tr("There are unsaved changes on the current configuration page. Would you like to apply your changes now?"),
+                                  QMessageBox::Discard|QMessageBox::Save|QMessageBox::Cancel, QMessageBox::Cancel);
+    if(ret == QMessageBox::Save) {
+      if(!applyChanges()) sp = currentPage();
+    } else if(ret == QMessageBox::Discard) {
+      undoChanges();
+    } else sp = currentPage();
+  }
+
+  if(sp != currentPage()) {
+    ui.pageTitle->setText(sp->title());
+    setWindowTitle(tr("Configure %1").arg(sp->title()));
+    ui.settingsStack->setCurrentWidget(sp);
+    _currentPage = sp;
+  }
+  setButtonStates();
 }
 
 void SettingsDlg::itemSelected() {
   QList<QTreeWidgetItem *> items = ui.settingsTree->selectedItems();
-  if(!items.count()) {
-    return;
-  } else {
-    QTreeWidgetItem *parent = items[0]->parent();
-    if(!parent) return;
-    QString cat = parent->text(0);
-    QString title = items[0]->text(0);
-    selectPage(cat, title);
+  SettingsPage *sp = 0;
+  if(!items.isEmpty()) {
+    sp = qobject_cast<SettingsPage *>(items[0]->data(0, SettingsPageRole).value<QObject *>());
   }
+  selectPage(sp);
+}
+
+void SettingsDlg::setButtonStates() {
+  SettingsPage *sp = currentPage();
+  ui.buttonBox->button(QDialogButtonBox::Apply)->setEnabled(sp && sp->hasChanged());
+  ui.buttonBox->button(QDialogButtonBox::Reset)->setEnabled(sp && sp->hasChanged());
+  ui.buttonBox->button(QDialogButtonBox::RestoreDefaults)->setEnabled(sp && sp->hasDefaults());
 }
 
 void SettingsDlg::buttonClicked(QAbstractButton *button) {
-  switch(ui.buttonBox->buttonRole(button)) {
-    case QDialogButtonBox::AcceptRole:
-      applyChanges();
-      accept();
+  switch(ui.buttonBox->standardButton(button)) {
+    case QDialogButtonBox::Ok:
+      if(currentPage() && currentPage()->hasChanged()) {
+        if(applyChanges()) accept();
+      } else accept();
       break;
-    case QDialogButtonBox::ApplyRole:
+    case QDialogButtonBox::Apply:
       applyChanges();
       break;
-    case QDialogButtonBox::RejectRole:
+    case QDialogButtonBox::Cancel:
+      undoChanges();
       reject();
       break;
+    case QDialogButtonBox::Reset:
+      reload();
+      break;
+    case QDialogButtonBox::RestoreDefaults:
+      loadDefaults();
+      break;
     default:
       break;
   }
 }
 
-void SettingsDlg::applyChanges() {
-  //SettingsInterface *sp = qobject_cast<SettingsInterface *>(ui.settingsStack->currentWidget());
-  //if(sp) sp->applyChanges();
+bool SettingsDlg::applyChanges() {
+  if(!currentPage()) return false;
+  if(currentPage()->aboutToSave()) {
+    currentPage()->save();
+    return true;
+  }
+  return false;
 }
 
+void SettingsDlg::undoChanges() {
+  if(currentPage()) {
+    currentPage()->load();
+  }
+}
+
+void SettingsDlg::reload() {
+  if(!currentPage()) return;
+  int ret = QMessageBox::question(this, tr("Reload Settings"), tr("Do you like to reload the settings, undoing your changes on this page?"),
+                                  QMessageBox::Yes|QMessageBox::No, QMessageBox::No);
+  if(ret == QMessageBox::Yes) {
+    currentPage()->load();
+  }
+}
+
+void SettingsDlg::loadDefaults() {
+  if(!currentPage()) return;
+  int ret = QMessageBox::question(this, tr("Restore Defaults"), tr("Do you like to restore the default values for this page?"),
+                                  QMessageBox::RestoreDefaults|QMessageBox::Cancel, QMessageBox::Cancel);
+  if(ret == QMessageBox::RestoreDefaults) {
+    currentPage()->defaults();
+  }
+}