File indexing completed on 2024-05-19 05:19:22

 /*
     SPDX-FileCopyrightText: 2008 Volker Krause <vkrause@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "uistatesaver.h"
 
 #include <KConfigGroup>
 
 #include <QComboBox>
 #include <QHeaderView>
 #include <QSplitter>
 #include <QTabWidget>
 #include <QTreeView>
 
 using namespace KJots;
 
 struct Saver {
     static void process(QSplitter *splitter, KConfigGroup &config)
     {
         if (splitter->sizes().count(0) == splitter->sizes().count()) {
             return;
         }
         config.writeEntry(splitter->objectName(), splitter->sizes());
     }
 
     static void process(QTabWidget *tab, KConfigGroup &config)
     {
         config.writeEntry(tab->objectName(), tab->currentIndex());
     }
 
     static void process(QTreeView *tv, KConfigGroup &config)
     {
         config.writeEntry(tv->objectName(), tv->header()->saveState());
     }
 
     static void process(QComboBox *cb, KConfigGroup &config)
     {
         config.writeEntry(cb->objectName(), cb->currentIndex());
     }
 };
 
 struct Restorer {
     static void process(QSplitter *splitter, const KConfigGroup &config)
     {
         const QList<int> sizes = config.readEntry(splitter->objectName(), QList<int>());
         if (!sizes.isEmpty() && splitter->count() == sizes.count() && sizes.count() != sizes.count(0)) {
             splitter->setSizes(sizes);
         }
     }
 
     static void process(QTabWidget *tab, const KConfigGroup &config)
     {
         const int index = config.readEntry(tab->objectName(), -1);
         if (index >= 0 && index < tab->count()) {
             tab->setCurrentIndex(index);
         }
     }
 
     static void process(QTreeView *tv, const KConfigGroup &config)
     {
         const QByteArray state = config.readEntry(tv->objectName(), QByteArray());
         if (!state.isEmpty()) {
             tv->header()->restoreState(state);
         }
     }
 
     static void process(QComboBox *cb, const KConfigGroup &config)
     {
         const int index = config.readEntry(cb->objectName(), -1);
         if (index >= 0 && index < cb->count()) {
             cb->setCurrentIndex(index);
         }
     }
 };
 
 #define PROCESS_TYPE(T) \
     { \
         T *obj = qobject_cast<T *>(w); \
         if (obj) { \
             Op::process(obj, config); \
             continue; \
         } \
     }
 
 template<typename Op, typename Config> static void processWidgets(QWidget *widget, Config config)
 {
     QList<QWidget *> widgets = widget->findChildren<QWidget *>();
     widgets << widget;
     for (QWidget *w : std::as_const(widgets)) {
         if (w->objectName().isEmpty()) {
             continue;
         }
         PROCESS_TYPE(QSplitter);
         PROCESS_TYPE(QTabWidget);
         PROCESS_TYPE(QTreeView);
         PROCESS_TYPE(QComboBox);
     }
 }
 
 #undef PROCESS_TYPE
 
 void UiStateSaver::saveState(QWidget *widget, KConfigGroup &config)
 {
     processWidgets<Saver, KConfigGroup &>(widget, config);
 }
 
 void UiStateSaver::restoreState(QWidget *widget, const KConfigGroup &config)
 {
     processWidgets<Restorer, const KConfigGroup &>(widget, config);
 }