kconfig: qconf: move ConfigView::updateList(All) to ConfigList class

ConfigView::updateList() iterates over all views, and then calls
updateList() against for its ConfigList instance.

This means there is no point to implement it in the ConfigView class.

Move and rename as follows:

  ConfigView::updateList()     -> ConfigList::updateListForAll()
  ConfigView::updateListAll()  -> ConfigList::updateListAllForAll()

I used QList to contain all ConfigList instances.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

scripts/kconfig/qconf.cc

@@ -274,7 +274,7 @@ void ConfigLineEdit::keyPressEvent(QKeyEvent* e)
 	case Qt::Key_Return:
 	case Qt::Key_Enter:
 		sym_set_string_value(item->menu->sym, text().toLatin1());
-		parent()->updateList();
+		ConfigList::updateListForAll();
 		break;
 	default:
 		Parent::keyPressEvent(e);
@@ -315,9 +315,16 @@ ConfigList::ConfigList(ConfigView* p, const char *name)
 
 	showColumn(promptColIdx);
 
+	allLists.append(this);
+
 	reinit();
 }
 
+ConfigList::~ConfigList()
+{
+	allLists.removeOne(this);
+}
+
 bool ConfigList::menuSkip(struct menu *menu)
 {
 	if (optMode == normalOpt && menu_is_visible(menu))
@@ -454,6 +461,28 @@ update:
 	resizeColumnToContents(0);
 }
 
+void ConfigList::updateListForAll()
+{
+	QListIterator<ConfigList *> it(allLists);
+
+	while (it.hasNext()) {
+		ConfigList *list = it.next();
+
+		list->updateList();
+	}
+}
+
+void ConfigList::updateListAllForAll()
+{
+	QListIterator<ConfigList *> it(allLists);
+
+	while (it.hasNext()) {
+		ConfigList *list = it.next();
+
+		list->updateList();
+	}
+}
+
 void ConfigList::setValue(ConfigItem* item, tristate val)
 {
 	struct symbol* sym;
@@ -474,7 +503,7 @@ void ConfigList::setValue(ConfigItem* item, tristate val)
 			return;
 		if (oldval == no && item->menu->list)
 			item->setExpanded(true);
-		parent()->updateList();
+		ConfigList::updateListForAll();
 		break;
 	}
 }
@@ -508,7 +537,7 @@ void ConfigList::changeValue(ConfigItem* item)
 				item->setExpanded(true);
 		}
 		if (oldexpr != newexpr)
-			parent()->updateList();
+			ConfigList::updateListForAll();
 		break;
 	case S_INT:
 	case S_HEX:
@@ -904,7 +933,7 @@ void ConfigList::contextMenuEvent(QContextMenuEvent *e)
 	e->accept();
 }
 
-ConfigView*ConfigView::viewList;
+QList<ConfigList *> ConfigList::allLists;
 QAction *ConfigList::showNormalAction;
 QAction *ConfigList::showAllAction;
 QAction *ConfigList::showPromptAction;
@@ -921,21 +950,6 @@ ConfigView::ConfigView(QWidget* parent, const char *name)
 	lineEdit = new ConfigLineEdit(this);
 	lineEdit->hide();
 	verticalLayout->addWidget(lineEdit);
-
-	this->nextView = viewList;
-	viewList = this;
-}
-
-ConfigView::~ConfigView(void)
-{
-	ConfigView** vp;
-
-	for (vp = &viewList; *vp; vp = &(*vp)->nextView) {
-		if (*vp == this) {
-			*vp = nextView;
-			break;
-		}
-	}
 }
 
 void ConfigView::setShowName(bool b)
@@ -976,22 +990,6 @@ void ConfigList::setAllOpen(bool open)
 	}
 }
 
-void ConfigView::updateList()
-{
-	ConfigView* v;
-
-	for (v = viewList; v; v = v->nextView)
-		v->list->updateList();
-}
-
-void ConfigView::updateListAll(void)
-{
-	ConfigView* v;
-
-	for (v = viewList; v; v = v->nextView)
-		v->list->updateListAll();
-}
-
 ConfigInfoView::ConfigInfoView(QWidget* parent, const char *name)
 	: Parent(parent), sym(0), _menu(0)
 {
@@ -1605,7 +1603,7 @@ void ConfigMainWindow::loadConfig(void)
 	free(configname);
 	configname = xstrdup(name);
 
-	ConfigView::updateListAll();
+	ConfigList::updateListAllForAll();
 }
 
 bool ConfigMainWindow::saveConfig(void)

scripts/kconfig/qconf.h

@@ -44,6 +44,7 @@ class ConfigList : public QTreeWidget {
 	typedef class QTreeWidget Parent;
 public:
 	ConfigList(ConfigView* p, const char *name = 0);
+	~ConfigList();
 	void reinit(void);
 	ConfigItem* findConfigItem(struct menu *);
 	ConfigView* parent(void) const
@@ -108,6 +109,10 @@ public slots:
 	QPalette inactivedColorGroup;
 	QMenu* headerPopup;
 
+	static QList<ConfigList *> allLists;
+	static void updateListForAll();
+	static void updateListAllForAll();
+
 	static QAction *showNormalAction, *showAllAction, *showPromptAction;
 };
 
@@ -188,9 +193,6 @@ class ConfigView : public QWidget {
 	typedef class QWidget Parent;
 public:
 	ConfigView(QWidget* parent, const char *name = 0);
-	~ConfigView(void);
-	static void updateList();
-	static void updateListAll(void);
 
 	bool showName(void) const { return list->showName; }
 	bool showRange(void) const { return list->showRange; }
@@ -206,9 +208,6 @@ public slots:
 public:
 	ConfigList* list;
 	ConfigLineEdit* lineEdit;
-
-	static ConfigView* viewList;
-	ConfigView* nextView;
 };
 
 class ConfigInfoView : public QTextBrowser {