CComponents: add new header file cc_signals.h with some basic members

src/gui/components/Makefile.am

@@ -44,4 +44,5 @@ libneutrino_gui_components_a_SOURCES = \
 	cc_item_progressbar.cpp \
 	cc_item_shapes.cpp \
 	cc_item_text.cpp \
-	cc_item_tvpic.cpp
+	cc_item_tvpic.cpp \
+	cc_timer.cpp

src/gui/components/cc_base.h

@@ -27,6 +27,7 @@
 #define __COMPONENTS__
 
 #include "cc_types.h"
+#include "cc_signals.h"
 #include <gui/widget/textbox.h>
 #include <vector>
 #include <string>
@@ -38,7 +39,7 @@
 Basic attributes and member functions for component sub classes
 */
 
-class CComponents : public COSDFader
+class CComponents : public CComponentsSignals, public COSDFader
 {
 	private:
 		///pixel buffer handling, returns pixel buffer depends of given parameters

src/gui/components/cc_signals.h

@@ -0,0 +1,89 @@
+/*
+	Based up Neutrino-GUI - Tuxbox-Project
+	Copyright (C) 2001 by Steffen Hehn 'McClean'
+
+	Classes for generic GUI-related components.
+	Copyright (C) 2013, Thilo Graf 'dbt'
+
+	License: GPL
+
+	This program is free software; you can redistribute it and/or
+	modify it under the terms of the GNU General Public
+	License as published by the Free Software Foundation; either
+	version 2 of the License, or (at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+	General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/// Basic CComponentSignals class header.
+/*!
+Basic signal declarations for component sub classes
+
+This class provides some general declarations of signals based up libsigc++.
+For more details see: http://libsigc.sourceforge.net/doc.shtml
+
+If you want to use a signal in a class, some steps are required
+example:
+
+#include <sigc++/slot.h>
+
+class CYourClass : sigc::trackable //<- not forget, requierd by destructor!
+{
+	public:
+		CYourClass();
+		~CYourClass();
+
+		//...your other stuff
+
+		//here is the member we will connect to a signal, here we have a member with one parameter (void*)
+		void DoThis(void* arg)
+		{
+			//do something here
+		};
+
+		//this is the member we will use to connect with a signal
+		void RunExample()
+		{
+			CReceiverClass receiver;
+				//this object contains the member in which is placed a signal, here: OnBeforePaint
+				//note: OnBeforePaint is already inherited, if you use any CComponent Class. Otherwise, it must be done separatly
+				//eg: class CNotACComponentClass : public CComponentSignals
+				//this also handles the derivation of sigc::trackable
+
+			// here we use a void* parameter, can be filled with any stuff you can cast, you can use also other types
+			void *vptr = yourStuff;
+
+			//now we create a slot...
+			sigc::slot0<void> sl = sigc::bind<0>(sigc::mem_fun1(*this, &CYourClass::DoThis), vptr);
+
+			//...and connect with signal in the receiver object
+			receiver.OnBeforePaint.connect(sl);
+
+			//thats' all. If DoThis(bla) is connected, OnBeforePaint is doing the same like the DoThis(), but in the foreign object
+		};
+};
+*/
+
+#ifndef __CC_SIGNALS_H__
+#define __CC_SIGNALS_H____
+
+#include <sigc++/signal.h>
+
+
+class CComponentsSignals : public sigc::trackable
+{
+	public:
+		CComponentsSignals(){};
+
+		sigc::signal<void> OnBeforePaint;
+		sigc::signal<void> OnAfterPaint;
+};
+
+
+#endif

src/gui/components/cc_timer.cpp

@@ -0,0 +1,104 @@
+/*
+	Based up Neutrino-GUI - Tuxbox-Project
+	Copyright (C) 2001 by Steffen Hehn 'McClean'
+
+	Generic Timer.
+	Copyright (C) 2013, Thilo Graf 'dbt'
+
+	License: GPL
+
+	This program is free software; you can redistribute it and/or
+	modify it under the terms of the GNU General Public
+	License as published by the Free Software Foundation; either
+	version 2 of the License, or (at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+	General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <global.h>
+#include <neutrino.h>
+
+#include "cc_timer.h"
+#include <pthread.h>
+#include <errno.h>
+#include <system/helpers.h>
+
+using namespace std;
+
+CComponentsTimer::CComponentsTimer( const int& interval)
+{
+	tm_thread 		= 0;
+	tm_interval		= interval;
+	if (startTimer())
+		printf("[CComponentsTimer]    [%s]  timer started\n", __func__);
+}
+
+CComponentsTimer::~CComponentsTimer()
+{
+	if (stopTimer())
+		printf("[CComponentsTimer]    [%s]  timer stopped\n", __func__);
+}
+
+//thread handle
+void* CComponentsTimer::initTimerThread(void *arg)
+{
+	pthread_setcancelstate(PTHREAD_CANCEL_ENABLE,0);
+	pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS,0);
+
+	CComponentsTimer *timer = static_cast<CComponentsTimer*>(arg);
+
+	//start loop
+	while(timer) {
+		timer->OnTimer();
+		mySleep(timer->tm_interval);
+	}
+
+	return 0;
+}
+
+//start up running timer with own thread, return true on succses
+bool CComponentsTimer::startTimer()
+{
+	void *ptr = static_cast<void*>(this);
+
+	if(!tm_thread) {
+		int res = pthread_create (&tm_thread, NULL, initTimerThread, ptr) ;
+		if (res != 0){
+			printf("[CComponentsTimer]    [%s]  pthread_create  %s\n", __func__, strerror(errno));
+			return false;
+		}
+	}
+	printf("[CComponentsTimer]    [%s]  timer thread [%lu] created with interval = %d\n", __func__, tm_thread, tm_interval);
+	return  true;
+}
+
+//stop ticking timer and kill thread, return true on succses
+bool CComponentsTimer::stopTimer()
+{
+	int thres = 0;
+	if(tm_thread) {
+		thres = pthread_cancel(tm_thread);
+		printf("[CComponentsTimer]    [%s] waiting for timer thread terminate ...\n", __func__);
+		if (thres != 0)
+			printf("[CComponentsTimer]    [%s] pthread_cancel  %s\n", __func__, strerror(errno));
+		thres = pthread_join(tm_thread, NULL);
+		if (thres != 0)
+			printf("[CComponentsTimer]    [%s] pthread_join  %s\n", __func__, strerror(errno));
+	}
+	if (thres == 0){
+		tm_thread = 0;
+		return true;
+	}
+
+	return false;
+}

src/gui/components/cc_timer.h

@@ -0,0 +1,69 @@
+/*
+	Based up Neutrino-GUI - Tuxbox-Project
+	Copyright (C) 2001 by Steffen Hehn 'McClean'
+
+	Classes for generic GUI-related components.
+	Copyright (C) 2013, Thilo Graf 'dbt'
+
+	License: GPL
+
+	This program is free software; you can redistribute it and/or
+	modify it under the terms of the GNU General Public
+	License as published by the Free Software Foundation; either
+	version 2 of the License, or (at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+	General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __CC_TIMER__
+#define __CC_TIMER__
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <sigc++/signal.h>
+
+//! Member of CComponents. Provides a generic timer class
+/*!
+
+*/
+
+class CComponentsTimer : public sigc::trackable
+{
+	private:
+		///thread
+		pthread_t  tm_thread;
+		///refresh interval in seconds
+		int tm_interval;
+		///init function to start timer in own thread
+		static void* initTimerThread(void *arg);
+
+	public:
+		///class constructor, parameter interval sets the interval in seconds, default value=1 (1 sec)
+		CComponentsTimer(const int& interval = 1);
+		~CComponentsTimer();
+
+		///start timer thread, returns true on success, if false causes log output
+		bool startTimer();
+		///stop timer thread, returns true on success, if false causes log output
+		bool stopTimer();
+
+		///returns true, if timer is running in thread
+		bool isRun() const {return tm_thread == 0 ? false:true;};
+		///set another interval in seconds
+		void setTimerIntervall(const int& seconds){tm_interval = seconds;};
+
+		///signal for timer event, use this in your class where ever you need time controled actions
+		///for more details see also CComponentsSignals for similar handlings
+		sigc::signal<void> OnTimer;
+};
+
+#endif