Main Menu: try to add dynamic possibility to disable items on runtime

The issue is that it's not really possible to disable/enable menu items on
runtime with an existant menu widget instance eg with personalized menu items.

Here we need a dynamic solution to disable items depends on stb-mode (mode_ts, mode_tv etc)
This should be solved here with an additional parameter for personalized items.

New paramter is named: disable_condition
Possible alvailable values at the moment are:

 DCOND_MODE_NONE as default

 DCOND_MODE_TV
 DCOND_MODE_RADIO
 DCOND_MODE_TS

includes some improvements by Sven

- menue: remove old_iconName handling
 ... icons should be painted on deactivated items too

- menue: try to fix position <-> selection missmatch


Origin commit data
------------------
Commit: 1f95f38d32
Author: Thilo Graf <dbt@novatux.de>
Date: 2015-12-13 (Sun, 13 Dec 2015)

Origin message was:
------------------
Main Menu: try to add dynamic possibility to disable items on runtime

The issue is that it's not really possible to disable/enable menu items on
runtime with an existant menu widget instance eg with personalized menu items.

Here we need a dynamic solution to disable items depends on stb-mode (mode_ts, mode_tv etc)
This should be solved here with an additional parameter for personalized items.

New paramter is named: disable_condition
Possible alvailable values at the moment are:

 DCOND_MODE_NONE as default

 DCOND_MODE_TV
 DCOND_MODE_RADIO
 DCOND_MODE_TS

includes some improvements by Sven

- menue: remove old_iconName handling
 ... icons should be painted on deactivated items too

- menue: try to fix position <-> selection missmatch

src/gui/widget/menue.cpp

@@ -59,7 +59,7 @@ CMenuForwarder * const GenericMenuNext = &CGenericMenuNext;
 
 CMenuItem::CMenuItem(bool Active, neutrino_msg_t DirectKey, const char * const IconName, const char * const IconName_Info_right, bool IsStatic)
 {
-	active		= Active;
+	active		= current_active = Active;
 	directKey	= DirectKey;
 	isStatic	= IsStatic;
 
@@ -89,6 +89,7 @@ CMenuItem::CMenuItem(bool Active, neutrino_msg_t DirectKey, const char * const I
 	selected_iconName = NULL;
 	height = 0;
 	actObserv	= NULL;
+	parent_widget	= NULL;
 }
 
 void CMenuItem::init(const int X, const int Y, const int DX, const int OFFX)
@@ -104,7 +105,7 @@ void CMenuItem::init(const int X, const int Y, const int DX, const int OFFX)
 
 void CMenuItem::setActive(const bool Active)
 {
-	active = Active;
+	active	= current_active = Active;
 	/* used gets set by the addItem() function. This is for disabling
 	   machine-specific options by just not calling the addItem() function.
 	   Without this, the changeNotifiers would become machine-dependent. */
@@ -112,6 +113,48 @@ void CMenuItem::setActive(const bool Active)
 		paint();
 }
 
+bool CMenuItem::initModeCondition(const int& stb_mode)
+{
+	if (CNeutrinoApp::getInstance()->getMode() == stb_mode){
+		active 	= false;
+		marked 	= false;
+		if (parent_widget)
+			if (!isSelectable())
+				parent_widget->initSelectable();
+		return true;
+	}
+	printf("\033[33m[CMenuItem] [%s - %d] missmatching stb mode condition \033[0m\n", __func__, __LINE__, stb_mode);
+	return false;
+}
+
+void CMenuItem::disableByCondition(const menu_item_disable_cond_t& condition)
+{
+	int stb_mode = CNeutrinoApp::getInstance()->getMode();
+
+	if (condition & DCOND_MODE_TS){
+		if (stb_mode == CNeutrinoApp::mode_ts)
+			if (initModeCondition(stb_mode))
+				return;
+	}
+	if (condition & DCOND_MODE_RADIO){
+		if (stb_mode == CNeutrinoApp::mode_radio)
+			if (initModeCondition(stb_mode))
+				return;
+	}
+	if (condition & DCOND_MODE_TV){
+		if (stb_mode == CNeutrinoApp::mode_tv)
+			if (initModeCondition(stb_mode))
+				return;
+	}
+
+	active = current_active;
+
+	if (parent_widget){
+		if (!isSelectable())
+			parent_widget->initSelectable();
+	}
+}
+
 void CMenuItem::setMarked(const bool Marked)
 {
 	marked = Marked;
@@ -605,6 +648,7 @@ void CMenuWidget::addItem(CMenuItem* menuItem, const bool defaultselected)
 
 	menuItem->isUsed();
 	items.push_back(menuItem);
+	menuItem->setParentWidget(this);
 }
 
 void CMenuWidget::resetWidget(bool delete_items)
@@ -668,12 +712,7 @@ int CMenuWidget::exec(CMenuTarget* parent, const std::string &)
 	neutrino_msg_data_t data;
 	bool bAllowRepeatLR = false;
 	CVFD::MODES oldLcdMode = CVFD::getInstance()->getMode();
-	
-	int pos = 0;
-	if (selected > 0 && selected < (int)items.size())
-		pos = selected;
-	else
-		selected = -1;
+
 	exit_pressed = false;
 
 	frameBuffer->Lock();
@@ -693,21 +732,22 @@ int CMenuWidget::exec(CMenuTarget* parent, const std::string &)
 			}
 		}
 	}
-	/* make sure we start with a selectable item... */
-	while (pos < (int)items.size()) {
-		if (items[pos]->isSelectable())
-			break;
-		pos++;
-	}
+
 	checkHints();
 
 	if(savescreen) {
 		calcSize();
 		saveScreen();
 	}
+
+	/* make sure we start with a selectable item... */
+	initSelectable();
+
 	paint();
 	frameBuffer->blit();
 
+	int pos = selected;
+
 	int retval = menu_return::RETURN_REPAINT;
 	uint64_t timeoutEnd = CRCInput::calcTimeoutEnd(g_settings.timing[SNeutrinoSettings::TIMING_MENU] == 0 ? 0xFFFF : g_settings.timing[SNeutrinoSettings::TIMING_MENU]);
 		
@@ -1132,6 +1172,22 @@ void CMenuWidget::calcSize()
 	setMenuPos(full_width);
 }
 
+void CMenuWidget::initSelectable()
+{
+	int pos = 0;
+	if (selected > 0 && selected < (int)items.size())
+		pos = selected;
+	else
+		selected = -1;
+
+	while (pos < (int)items.size()) {
+		if (items[pos]->isSelectable())
+			break;
+		pos++;
+	}
+	selected = pos;
+}
+
 void CMenuWidget::paint()
 {
 	calcSize();
@@ -1218,16 +1274,16 @@ void CMenuWidget::paintItems()
 		 * different height and this might leave artifacts otherwise after changing pages */
 		frameBuffer->paintBoxRel(x,item_start_y, width,item_height, COL_MENUCONTENT_PLUS_0);
 	}
+
 	int ypos=item_start_y;
 	for (int count = 0; count < (int)items.size(); count++)
 	{
 		CMenuItem* item = items[count];
-
+		item->OnPaintItem();
 		if ((count >= page_start[current_page]) &&
 		    (count < page_start[current_page + 1]))
 		{
 			item->init(x, ypos, width, iconOffset);
-
 			if (item->isSelectable() && selected == -1)
 				selected = count;
 
@@ -2124,7 +2180,8 @@ std::string CMenuForwarder::getOption(void)
 
 int CMenuForwarder::paint(bool selected)
 {
- 	std::string option_name = getOption();
+	std::string option_name = getOption();
+
 	fb_pixel_t bgcol = 0;
 	if (jumpTarget)
 		bgcol = jumpTarget->getColor();
@@ -2137,7 +2194,7 @@ int CMenuForwarder::paint(bool selected)
 	
 	//caption
 	paintItemCaption(selected, option_name.c_str(), bgcol);
-	
+
 	return y+ height;
 }
 

src/gui/widget/menue.h

@@ -56,7 +56,8 @@ extern "C" {
 #define NO_WIDGET_ID -1
 
 typedef int mn_widget_id_t;
-
+typedef int menu_item_disable_cond_t;
+class CMenuWidget;
 struct menu_return
 {
 	enum
@@ -69,6 +70,15 @@ struct menu_return
 		};
 };
 
+enum
+{
+	DCOND_MODE_NONE 	= 1,
+
+	DCOND_MODE_TV 		= 2,
+	DCOND_MODE_RADIO  	= 4,
+	DCOND_MODE_TS 		= 8
+}/*menu_item_disable_cond_t*/;
+
 class CChangeObserver
 {
 	public:
@@ -104,15 +114,16 @@ class CMenuTarget
 		virtual fb_pixel_t getColor(void) { return 0; }
 };
 
-class CMenuItem
+class CMenuItem : public  CComponentsSignals
 {
 	private:
 		void setIconName();
+		CMenuWidget* parent_widget;
 	protected:
 		int x, y, dx, offx, name_start_x, icon_frame_w;
 		bool used;
 		fb_pixel_t item_color, item_bgcolor;
-		
+		bool initModeCondition(const int& stb_mode);
 		void initItemColors(const bool select_mode);
 		lua_State	*luaState;
 		std::string	luaAction;
@@ -124,7 +135,7 @@ class CMenuItem
 		CActivateObserver * actObserv;
 	public:
 		int		height;
-		bool		active;
+		bool		active, current_active;
 		bool		marked;
 		bool		inert;
 		bool		isStatic;
@@ -157,7 +168,7 @@ class CMenuItem
 		}
 		virtual int getYPosition(void) const { return y; }
 
-		virtual bool isSelectable(void) const { return active; }
+		virtual bool isSelectable(void) const { return (active && current_active); }
 
 		virtual int exec(CMenuTarget* /*parent*/)
 		{
@@ -166,9 +177,9 @@ class CMenuItem
 		virtual void setActive(const bool Active);
 		virtual void setMarked(const bool Marked);
 		virtual void setInert(const bool Inert);
-		
+
 		virtual void paintItemButton(const bool select_mode, int item_height, const char * const icon_Name = NEUTRINO_ICON_BUTTON_RIGHT);
-		
+
 		virtual void prepareItem(const bool select_mode, const int &item_height);
 
 		virtual void setItemButton(const char * const icon_Name, const bool is_select_button = false);
@@ -180,17 +191,20 @@ class CMenuItem
 		virtual int isMenueOptionChooser(void) const{return 0;}
 		void setHint(const char * const icon, const neutrino_locale_t text) { hintIcon = (icon && *icon) ? icon : NULL; hint = text; }
 		void setHint(const char * const icon, const std::string text) { hintIcon = (icon && *icon) ? icon : NULL; hintText = text; }
+
 		void setLua(lua_State *_luaState, std::string &_luaAction, std::string &_luaId) { luaState = _luaState; luaAction = _luaAction; luaId = _luaId; };
 		virtual const char *getName();
 		virtual void setName(const std::string& text);
 		virtual void setName(const neutrino_locale_t text);
-
+		sigc::signal<void> OnPaintItem;
 		virtual const char *getDescription();
 		virtual void setDescription(const std::string& text);
 		virtual void setDescription(const neutrino_locale_t text);
 		virtual int getDescriptionHeight(void);
 		void setActivateObserver(CActivateObserver * Observ) { actObserv = Observ; }
 		void activateNotify(void);
+		virtual void disableByCondition(const menu_item_disable_cond_t& condition);
+		void setParentWidget(CMenuWidget* parent){parent_widget = parent;}
 };
 
 class CMenuSeparator : public CMenuItem
@@ -355,7 +369,7 @@ struct CMenuOptionChooserCompareItem: public std::binary_function <const CMenuOp
 	};
 };
 
-class CMenuOptionChooser : public CAbstractMenuOptionChooser, public sigc::trackable
+class CMenuOptionChooser : public CAbstractMenuOptionChooser
 {
 	public:
 		struct keyval
@@ -577,6 +591,7 @@ class CMenuWidget : public CMenuTarget
 		virtual const char *getName();
 		virtual void integratePlugins(CPlugins::i_type_t integration, const unsigned int shortcut=CRCInput::RC_nokey, bool enabled=true);
 		void setSelected(const int &Preselected){ selected = Preselected; };
+		void initSelectable();
 		int getSelected()const { return selected; };
 		void move(int xoff, int yoff);
 		int getSelectedLine(void)const {return exit_pressed ? -1 : selected;};
@@ -584,6 +599,7 @@ class CMenuWidget : public CMenuTarget
 		void enableFade(bool _enable) { fade = _enable; };
 		void enableSaveScreen(bool enable);
 		void paintHint(int num);
+		void paintHint(){hint_painted = false;}
 		enum 
 		{
 			MENU_POS_CENTER 	,