[PATCH] add menuconfig support to the front ends

This adds the support for the menuconfig to the front ends.
qconf also has now an ".." entry to make it more obvious
how to get to a parent menu.

scripts/kconfig/mconf.c

@@ -302,11 +302,8 @@ static void build_conf(struct menu *menu)
 					cprint1("%s%*c%s",
 						menu->data ? "-->" : "++>",
 						indent + 1, ' ', prompt);
-				} else {
-					if (menu->parent != &rootmenu)
-						cprint1("   %*c", indent + 1, ' ');
-					cprint1("%s  --->", prompt);
-				}
+				} else
+					cprint1("   %*c%s  --->", indent + 1, ' ', prompt);
 
 				cprint_done();
 				if (single_menu_mode && menu->data)
@@ -373,6 +370,11 @@ static void build_conf(struct menu *menu)
 		}
 		cprint_done();
 	} else {
+		if (menu == current_menu) {
+			cprint(":%p", menu);
+			cprint("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
+			goto conf_childs;
+		}
 		child_count++;
 		val = sym_get_tristate_value(sym);
 		if (sym_is_choice_value(sym) && val == yes) {
@@ -407,6 +409,11 @@ static void build_conf(struct menu *menu)
 		}
 		cprint1("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
 			sym_has_value(sym) ? "" : " (NEW)");
+		if (menu->prompt->type == P_MENU) {
+			cprint1("  --->");
+			cprint_done();
+			return;
+		}
 		cprint_done();
 	}
 
@@ -445,9 +452,9 @@ static void conf(struct menu *menu)
 			cprint(":");
 			cprint("--- ");
 			cprint("L");
-			cprint("Load an Alternate Configuration File");
+			cprint("    Load an Alternate Configuration File");
 			cprint("S");
-			cprint("Save Configuration to an Alternate File");
+			cprint("    Save Configuration to an Alternate File");
 		}
 		stat = exec_conf();
 		if (stat < 0)
@@ -484,6 +491,8 @@ static void conf(struct menu *menu)
 			case 't':
 				if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
 					conf_choice(submenu);
+				else if (submenu->prompt->type == P_MENU)
+					conf(submenu);
 				break;
 			case 's':
 				conf_string(submenu);

scripts/kconfig/qconf.cc

@@ -42,15 +42,12 @@ static QSettings *configSettings;
  * menu: entry to be updated
  */
 template <class P>
-static void updateMenuList(P* parent, struct menu* menu)
+void ConfigList::updateMenuList(P* parent, struct menu* menu)
 {
 	struct menu* child;
-	ConfigList* list = parent->listView();
 	ConfigItem* item;
 	ConfigItem* last;
 	bool visible;
-	bool showAll = list->showAll;
-	enum listMode mode = list->mode;
 	enum prop_type type;
 
 	if (!menu) {
@@ -59,6 +56,8 @@ static void updateMenuList(P* parent, struct menu* menu)
 		return;
 	}
 
+	last = parent->firstChild();
+	if (last && !last->goParent)
 		last = 0;
 	for (child = menu->list; child; child = child->next) {
 		item = last ? last->nextSibling() : parent->firstChild();
@@ -81,16 +80,8 @@ static void updateMenuList(P* parent, struct menu* menu)
 		if (showAll || visible) {
 			if (!item || item->menu != child)
 				item = new ConfigItem(parent, last, child, visible);
-			else {
-				item->visible = visible;
-				if (item->updateNeeded()) {
-					ConfigItem* i = (ConfigItem*)child->data;
-					for (; i; i = i->nextItem) {
-						i->updateMenu();
-					}
-				} else if (list->updateAll)
-					item->updateMenu();
-			}
+			else
+				item->testUpdateMenu(visible);
 
 			if (mode == fullMode || mode == menuMode ||
 			    (type != P_MENU && type != P_ROOTMENU))
@@ -131,24 +122,46 @@ void ConfigItem::updateMenu(void)
 {
 	ConfigList* list;
 	struct symbol* sym;
+	struct property *prop;
 	QString prompt;
 	int type;
-	enum prop_type ptype;
 	tristate expr;
 
 	list = listView();
+	if (goParent) {
+		setPixmap(promptColIdx, list->menuBackPix);
+		prompt = "..";
+		goto set_prompt;
+	}
 
 	sym = menu->sym;
-	if (!sym) {
-		setText(promptColIdx, menu_get_prompt(menu));
-		ptype = menu->prompt ? menu->prompt->type : P_UNKNOWN;
-		if ((ptype == P_ROOTMENU || ptype == P_MENU) &&
-		    (list->mode == singleMode || list->mode == symbolMode))
+	prop = menu->prompt;
+	prompt = menu_get_prompt(menu);
+
+	if (prop) switch (prop->type) {
+	case P_MENU:
+	case P_ROOTMENU:
+		if (list->mode == singleMode || list->mode == symbolMode) {
+			/* a menuconfig entry is displayed differently
+			 * depending whether it's at the view root or a child.
+			 */
+			if (sym && list->rootEntry == menu)
+				break;
 			setPixmap(promptColIdx, list->menuPix);
-		else
+		} else {
+			if (sym)
+				break;
 			setPixmap(promptColIdx, 0);
-		return;
 		}
+		goto set_prompt;
+	case P_COMMENT:
+		setPixmap(promptColIdx, 0);
+		goto set_prompt;
+	default:
+		;
+	}
+	if (!sym)
+		goto set_prompt;
 
 	setText(nameColIdx, sym->name);
 
@@ -158,7 +171,6 @@ void ConfigItem::updateMenu(void)
 	case S_TRISTATE:
 		char ch;
 
-		prompt = menu_get_prompt(menu);
 		if (!sym_is_changable(sym) && !list->showAll) {
 			setText(noColIdx, 0);
 			setText(modColIdx, 0);
@@ -211,26 +223,33 @@ void ConfigItem::updateMenu(void)
 #endif
 		setText(dataColIdx, data);
 		if (type == S_STRING)
-			prompt.sprintf("%s: %s", menu_get_prompt(menu), data);
+			prompt.sprintf("%s: %s", prompt.latin1(), data);
 		else
-			prompt.sprintf("(%s) %s", data, menu_get_prompt(menu));
+			prompt.sprintf("(%s) %s", data, prompt.latin1());
 		break;
 	}
 	if (!sym_has_value(sym) && visible)
 		prompt += " (NEW)";
+set_prompt:
 	setText(promptColIdx, prompt);
 }
 
-bool ConfigItem::updateNeeded(void)
+void ConfigItem::testUpdateMenu(bool v)
 {
-	struct symbol* sym = menu->sym;
-	if (sym)
-		sym_calc_value(sym);
+	ConfigItem* i;
+
+	visible = v;
+	if (!menu)
+		return;
+
+	sym_calc_value(menu->sym);
 	if (menu->flags & MENU_CHANGED) {
+		/* the menu entry changed, so update all list items */
 		menu->flags &= ~MENU_CHANGED;
-		return true;
-	}
-	return false;
+		for (i = (ConfigItem*)menu->data; i; i = i->nextItem)
+			i->updateMenu();
+	} else if (listView()->updateAll)
+		updateMenu();
 }
 
 void ConfigItem::paintCell(QPainter* p, const QColorGroup& cg, int column, int width, int align)
@@ -251,14 +270,15 @@ void ConfigItem::paintCell(QPainter* p, const QColorGroup& cg, int column, int w
  */
 void ConfigItem::init(void)
 {
+	if (menu) {
 		ConfigList* list = listView();
 		nextItem = (ConfigItem*)menu->data;
 		menu->data = this;
 
 		if (list->mode != fullMode)
 			setOpen(TRUE);
-	if (menu->sym)
 		sym_calc_value(menu->sym);
+	}
 	updateMenu();
 }
 
@@ -267,6 +287,7 @@ void ConfigItem::init(void)
  */
 ConfigItem::~ConfigItem(void)
 {
+	if (menu) {
 		ConfigItem** ip = &(ConfigItem*)menu->data;
 		for (; *ip; ip = &(*ip)->nextItem) {
 			if (*ip == this) {
@@ -274,6 +295,7 @@ ConfigItem::~ConfigItem(void)
 				break;
 			}
 		}
+	}
 }
 
 void ConfigLineEdit::show(ConfigItem* i)
@@ -310,7 +332,8 @@ ConfigList::ConfigList(ConfigView* p, ConfigMainWindow* cv)
 	: Parent(p), cview(cv),
 	  updateAll(false),
 	  symbolYesPix(xpm_symbol_yes), symbolModPix(xpm_symbol_mod), symbolNoPix(xpm_symbol_no),
-	  choiceYesPix(xpm_choice_yes), choiceNoPix(xpm_choice_no), menuPix(xpm_menu), menuInvPix(xpm_menu_inv),
+	  choiceYesPix(xpm_choice_yes), choiceNoPix(xpm_choice_no),
+	  menuPix(xpm_menu), menuInvPix(xpm_menu_inv), menuBackPix(xpm_menuback),
 	  showAll(false), showName(false), showRange(false), showData(false),
 	  rootEntry(0)
 {
@@ -366,6 +389,8 @@ void ConfigList::updateSelection(void)
 	cview->setHelp(item);
 
 	menu = item->menu;
+	if (!menu)
+		return;
 	type = menu->prompt ? menu->prompt->type : P_UNKNOWN;
 	if (mode == menuMode && (type == P_MENU || type == P_ROOTMENU))
 		emit menuSelected(menu);
@@ -373,7 +398,27 @@ void ConfigList::updateSelection(void)
 
 void ConfigList::updateList(ConfigItem* item)
 {
-	(void)item;	// unused so far
+	ConfigItem* last = 0;
+
+	if (!rootEntry)
+		goto update;
+
+	if ((mode == singleMode || mode == symbolMode) && rootEntry != &rootmenu) {
+		item = firstChild();
+		if (!item)
+			item = new ConfigItem(this, 0, true);
+		last = item;
+	}
+	if (mode == singleMode && rootEntry->sym && rootEntry->prompt) {
+		item = last ? last->nextSibling() : firstChild();
+		if (!item)
+			item = new ConfigItem(this, last, rootEntry, true);
+
+		updateMenuList(item, rootEntry);
+		triggerUpdate();
+		return;
+	}
+update:
 	updateMenuList(this, rootEntry);
 	triggerUpdate();
 }
@@ -392,7 +437,7 @@ void ConfigList::setValue(ConfigItem* item, tristate val)
 	int type;
 	tristate oldval;
 
-	sym = item->menu->sym;
+	sym = item->menu ? item->menu->sym : 0;
 	if (!sym)
 		return;
 
@@ -418,6 +463,8 @@ void ConfigList::changeValue(ConfigItem* item)
 	int type, oldexpr, newexpr;
 
 	menu = item->menu;
+	if (!menu)
+		return;
 	sym = menu->sym;
 	if (!sym) {
 		if (item->menu->list)
@@ -511,7 +558,13 @@ void ConfigList::keyPressEvent(QKeyEvent* ev)
 	switch (ev->key()) {
 	case Key_Return:
 	case Key_Enter:
+		if (item->goParent) {
+			emit parentSelected();
+			break;
+		}
 		menu = item->menu;
+		if (!menu)
+			break;
 		type = menu->prompt ? menu->prompt->type : P_UNKNOWN;
 		if ((type == P_MENU || type == P_ROOTMENU) && mode != fullMode) {
 			emit menuSelected(menu);
@@ -564,7 +617,11 @@ void ConfigList::contentsMouseReleaseEvent(QMouseEvent* e)
 			int off = header()->sectionPos(0) + itemMargin() +
 				treeStepSize() * (item->depth() + (rootIsDecorated() ? 1 : 0));
 			if (x >= off && x < off + pm->width()) {
-				if (menu->sym)
+				if (item->goParent)
+					emit parentSelected();
+				else if (!menu)
+					break;
+				else if (menu->sym)
 					changeValue(item);
 				else
 					emit menuSelected(menu);
@@ -606,7 +663,13 @@ void ConfigList::contentsMouseDoubleClickEvent(QMouseEvent* e)
 
 	if (!item)
 		goto skip;
+	if (item->goParent) {
+		emit parentSelected();
+		goto skip;
+	}
 	menu = item->menu;
+	if (!menu)
+		goto skip;
 	ptype = menu->prompt ? menu->prompt->type : P_UNKNOWN;
 	if ((ptype == P_ROOTMENU || ptype == P_MENU) &&
 	    (mode == singleMode || mode == symbolMode))
@@ -677,7 +740,6 @@ void ConfigView::updateListAll(void)
  */
 ConfigMainWindow::ConfigMainWindow(void)
 {
-	ConfigView* view;
 	QMenuBar* menu;
 	QSplitter* split1;
 	QSplitter* split2;
@@ -707,15 +769,15 @@ ConfigMainWindow::ConfigMainWindow(void)
 	split1->setOrientation(QSplitter::Horizontal);
 	setCentralWidget(split1);
 
-	view = new ConfigView(split1, this);
-	menuList = view->list;
+	menuView = new ConfigView(split1, this);
+	menuList = menuView->list;
 
 	split2 = new QSplitter(split1);
 	split2->setOrientation(QSplitter::Vertical);
 
 	// create config tree
-	view = new ConfigView(split2, this);
-	configList = view->list;
+	configView = new ConfigView(split2, this);
+	configList = configView->list;
 
 	helpText = new QTextView(split2);
 	helpText->setTextFormat(Qt::RichText);
@@ -864,10 +926,16 @@ static void expr_print_help(void *data, const char *str)
 void ConfigMainWindow::setHelp(QListViewItem* item)
 {
 	struct symbol* sym;
-	struct menu* menu;
+	struct menu* menu = 0;
 
 	configList->parent()->lineEdit->hide();
-	if (item) {
+	if (item)
+		menu = ((ConfigItem*)item)->menu;
+	if (!menu) {
+		helpText->setText(NULL);
+		return;
+	}
+
 	QString head, debug, help;
 	menu = ((ConfigItem*)item)->menu;
 	sym = menu->sym;
@@ -906,12 +974,7 @@ void ConfigMainWindow::setHelp(QListViewItem* item)
 					break;
 				case P_DEFAULT:
 					debug += "default: ";
-						if (sym_is_choice(sym))
 					debug += print_filter(prop->def->name);
-						else {
-							sym_calc_value(prop->def);
-							debug += print_filter(sym_get_string_value(prop->def));
-						}
 					debug += "<br>";
 					if (prop->visible.expr) {
 						debug += "&nbsp;&nbsp;dep: ";
@@ -944,9 +1007,6 @@ void ConfigMainWindow::setHelp(QListViewItem* item)
 		}
 	}
 	helpText->setText(head + debug + help);
-		return;
-	}
-	helpText->setText(NULL);
 }
 
 void ConfigMainWindow::loadConfig(void)
@@ -1010,7 +1070,7 @@ void ConfigMainWindow::goBack(void)
 
 void ConfigMainWindow::showSingleView(void)
 {
-	menuList->hide();
+	menuView->hide();
 	menuList->setRootMenu(0);
 	configList->mode = singleMode;
 	if (configList->rootEntry == &rootmenu)
@@ -1032,14 +1092,14 @@ void ConfigMainWindow::showSplitView(void)
 	configApp->processEvents();
 	menuList->mode = menuMode;
 	menuList->setRootMenu(&rootmenu);
-	menuList->show();
 	menuList->setAllOpen(TRUE);
+	menuView->show();
 	menuList->setFocus();
 }
 
 void ConfigMainWindow::showFullView(void)
 {
-	menuList->hide();
+	menuView->hide();
 	menuList->setRootMenu(0);
 	configList->mode = fullMode;
 	if (configList->rootEntry == &rootmenu)

scripts/kconfig/qconf.h

@@ -101,10 +101,14 @@ public slots:
 	void setAllOpen(bool open);
 	void setParentMenu(void);
 
+	template <class P>
+	void ConfigList::updateMenuList(P*, struct menu*);
+
 	bool updateAll;
 
 	QPixmap symbolYesPix, symbolModPix, symbolNoPix;
-	QPixmap choiceYesPix, choiceNoPix, menuPix, menuInvPix;
+	QPixmap choiceYesPix, choiceNoPix;
+	QPixmap menuPix, menuInvPix, menuBackPix;
 
 	bool showAll, showName, showRange, showData;
 	enum listMode mode;
@@ -121,12 +125,17 @@ class ConfigItem : public QListViewItem {
 	typedef class QListViewItem Parent;
 public:
 	ConfigItem(QListView *parent, ConfigItem *after, struct menu *m, bool v)
-	: Parent(parent, after), menu(m), visible(v)
+	: Parent(parent, after), menu(m), visible(v), goParent(false)
 	{
 		init();
 	}
 	ConfigItem(ConfigItem *parent, ConfigItem *after, struct menu *m, bool v)
-	: Parent(parent, after), menu(m), visible(v)
+	: Parent(parent, after), menu(m), visible(v), goParent(false)
+	{
+		init();
+	}
+	ConfigItem(QListView *parent, ConfigItem *after, bool v)
+	: Parent(parent, after), menu(0), visible(v), goParent(true)
 	{
 		init();
 	}
@@ -136,7 +145,7 @@ class ConfigItem : public QListViewItem {
 	void okRename(int col);
 #endif
 	void updateMenu(void);
-	bool updateNeeded(void);
+	void testUpdateMenu(bool v);
 	ConfigList* listView() const
 	{
 		return (ConfigList*)Parent::listView();
@@ -170,6 +179,7 @@ class ConfigItem : public QListViewItem {
 	ConfigItem* nextItem;
 	struct menu *menu;
 	bool visible;
+	bool goParent;
 };
 
 class ConfigLineEdit : public QLineEdit {
@@ -216,7 +226,9 @@ public slots:
 protected:
 	void closeEvent(QCloseEvent *e);
 
+	ConfigView *menuView;
 	ConfigList *menuList;
+	ConfigView *configView;
 	ConfigList *configList;
 	QTextView *helpText;
 	QToolBar *toolBar;