CCDraw: add function for blink effect for cc items

NOTE: experimental, for examples see CTestMenu class

src/gui/components/cc_draw.cpp

@@ -32,6 +32,7 @@
 CCDraw::CCDraw() : COSDFader(g_settings.theme.menu_Content_alpha)
 {
 	frameBuffer 		= CFrameBuffer::getInstance();
+
 	x = cc_xr = x_old	= 0;
 	y = cc_yr = y_old	= 0;
 	height	= height_old	= CC_HEIGHT_MIN;
@@ -70,6 +71,9 @@ CCDraw::CCDraw() : COSDFader(g_settings.theme.menu_Content_alpha)
 	cc_body_gradient_saturation 				= 0xC0;
 	cc_body_gradient_direction = cc_body_gradient_direction_old	= CFrameBuffer::gradientVertical;
 
+	cc_draw_timer		= NULL;
+	cc_draw_trigger_slot 	= sigc::mem_fun0(*this, &CCDraw::paintTrigger);
+
 	cc_gradient_bg_cleanup = true;
 
 	v_fbdata.clear();
@@ -77,6 +81,9 @@ CCDraw::CCDraw() : COSDFader(g_settings.theme.menu_Content_alpha)
 
 CCDraw::~CCDraw()
 {
+	if(cc_draw_timer){
+		delete cc_draw_timer; cc_draw_timer = NULL;
+	}
 	clearFbData();
 }
 
@@ -718,3 +725,42 @@ void CCDraw::enableShadow(int mode, const int& shadow_width, bool force_paint)
 	shadow_force = force_paint;
 }
 
+void CCDraw::paintTrigger()
+{
+	if (!is_painted)
+		paint1();
+	else
+		hide();
+}
+
+bool CCDraw::paintBlink(const int& interval, bool is_nano)
+{
+	if (cc_draw_timer == NULL){
+		cc_draw_timer = new CComponentsTimer(interval, is_nano);
+		if (cc_draw_timer->OnTimer.empty()){
+			cc_draw_timer->OnTimer.connect(cc_draw_trigger_slot);
+		}
+	}
+	if (cc_draw_timer)
+		return cc_draw_timer->isRun();
+
+	return false;
+}
+
+bool CCDraw::cancelBlink(bool keep_on_screen)
+{
+	bool res = false;
+
+	if (cc_draw_timer){
+		res = cc_draw_timer->stopTimer();
+		delete cc_draw_timer; cc_draw_timer = NULL;
+	}
+
+	if(keep_on_screen)
+		paint1();
+	else
+		hide();
+		
+
+	return res;
+}

src/gui/components/cc_draw.h

@@ -27,6 +27,7 @@
 
 #include "cc_types.h"
 #include "cc_signals.h"
+#include "cc_timer.h"
 #include <driver/colorgradient.h>
 #include <driver/fade.h>
 #include <gui/color.h>
@@ -47,7 +48,14 @@ class CCDraw : public COSDFader, public CComponentsSignals
 
 		///object: framebuffer object, usable in all sub classes
 		CFrameBuffer * frameBuffer;
-		
+
+		///internal draw timer, used for effects
+		CComponentsTimer *cc_draw_timer;
+		///slot for timer event, reserved for cc_draw_timer
+		sigc::slot0<void> cc_draw_trigger_slot;
+		///paint item with trigger effect
+		virtual void paintTrigger();
+
 		///property: x-position on screen, to alter with setPos() or setDimensionsAll(), see also defines CC_APPEND, CC_CENTERED
 		int x, x_old;
 		///property: y-position on screen, to alter setPos() or setDimensionsAll(), see also defines CC_APPEND, CC_CENTERED
@@ -299,10 +307,40 @@ class CCDraw : public COSDFader, public CComponentsSignals
 
 		///abstract: paint item, arg: do_save_bg see paintInit() above
 		virtual void paint(bool do_save_bg = CC_SAVE_SCREEN_YES) = 0;
-		///paint item, same like paint(CC_SAVE_SCREEN_YES) but without any argument
-		virtual void paint1(){paint(CC_SAVE_SCREEN_YES);}
 		///paint item, same like paint(CC_SAVE_SCREEN_NO) but without any argument
 		virtual void paint0(){paint(CC_SAVE_SCREEN_NO);}
+		///paint item, same like paint(CC_SAVE_SCREEN_YES) but without any argument
+		virtual void paint1(){paint(CC_SAVE_SCREEN_YES);}
+
+		/**paint item with blink effect
+		 * This should work with all cc item types.
+		 *
+		 * @return bool			returns true if effect is successful started
+		 *
+		 * @param[in] interval		optional, interval time as int, default =  1
+		 * @param[in] is_nano		optional, time mode as bool, default = false means as seconds, true means nano seconds.
+		 *
+		 * @see				take a look into test menu class for examples.
+		 * 				cancelBlink()
+		 *
+		 * 				NOTE: If you want to use enbedded items from a cc form (e.g. with gettCCItem(ID))
+		 * 				you must cast into current item type. e.g.:
+		 * 					CComponentsItemBla* item = static_cast<CComponentsItemBla*>(form->getCCItem(2));
+		 * 				and it's possible you must remove from screen before e.g.:
+		 * 					item->kill();
+		*/
+		virtual bool paintBlink(const int& interval = 1, bool is_nano = false);
+
+		/**Cancel blink effect
+		 *
+		 * @return bool			returns true if effect was successful canceled
+		 *
+		 * @param[in] keep_on_screen	optional, exepts bool, default = false. means: item is not repainted after canceled effect
+		 *
+		 * @see				take a look into test menu class for examples
+		 * 				NOTE: Effect must be started with paintBlink()
+		*/
+		bool cancelBlink(bool keep_on_screen = false);
 
 		///signal on before paint fb layers, called inside paintFbItems()
 		sigc::signal<void> OnBeforePaintLayers;

src/gui/components/cc_item.cpp

@@ -3,7 +3,7 @@
 	Copyright (C) 2001 by Steffen Hehn 'McClean'
 
 	Classes for generic GUI-related components.
-	Copyright (C) 2012-2015, Thilo Graf 'dbt'
+	Copyright (C) 2012-2016, Thilo Graf 'dbt'
 	Copyright (C) 2012, Michael Liebmann 'micha-bbg'
 
 	License: GPL

src/gui/components/cc_item_picture.cpp

@@ -349,6 +349,15 @@ bool CComponentsPicture::hasChanges()
 	return ret;
 }
 
+void CComponentsPicture::paintTrigger()
+{
+	if (!is_painted  && !isPicPainted())
+		paint1();
+	else
+		hide();
+}
+
+
 CComponentsChannelLogo::CComponentsChannelLogo( const int &x_pos, const int &y_pos, const int &w, const int &h,
 						const std::string& channelName,
 						const uint64_t& channelId,

src/gui/components/cc_item_picture.h

@@ -81,6 +81,9 @@ class CComponentsPicture : public CComponentsItem
 		///helper: indicate for reinit
 		bool need_init;
 
+		///paint item with changed paint and hide effect
+		void paintTrigger();
+
 		void init(	const int &x_pos, const int &y_pos, const int &w, const int &h,
 				const std::string& image_name,
 				CComponentsForm *parent,