CScreenSaver: add class CScreenSaver

Origin commit data
------------------
Branch: ni/coolstream
Commit: 6a23a1c36a
Author: defans <defans@bluepeercrew.us>
Date: 2014-12-29 (Mon, 29 Dec 2014)


------------------
No further description and justification available within origin commit message!

------------------
This commit was generated by Migit

src/gui/screensaver.cpp

@@ -0,0 +1,193 @@
+/*
+	Neutrino-GUI  -   DBoxII-Project
+
+	Copyright (C) 2001 Steffen Hehn 'McClean'
+	Homepage: http://dbox.cyberphoria.org/
+
+	Copyright (C) 2012-2013 defans@bluepeercrew.us
+
+	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/>.
+*/
+
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <global.h>
+#include <neutrino.h>
+#include <pthread.h>
+#include <algorithm>    // std::sort
+#include <ctype.h>
+#include "audiomute.h"
+#include "screensaver.h"
+
+#include <video.h>
+extern cVideo * videoDecoder;
+
+
+CScreenSaver::CScreenSaver()
+{
+	thrScreenSaver 	= 0;
+	m_frameBuffer 	= CFrameBuffer::getInstance();
+	index 		= 0;
+}
+
+CScreenSaver::~CScreenSaver()
+{
+	if(thrScreenSaver)
+		pthread_cancel(thrScreenSaver);
+	thrScreenSaver = 0;
+}
+
+
+CScreenSaver* CScreenSaver::getInstance()
+{
+	static CScreenSaver * screenSaver = NULL;
+	if (!screenSaver)
+		screenSaver = new CScreenSaver();
+
+	return screenSaver;
+}
+
+
+void CScreenSaver::Start()
+{
+	CAudioMute::getInstance()->enableMuteIcon(false);
+
+	if(!thrScreenSaver)
+	{
+		//printf("[%s] %s: starting thread\n", __FILE__, __FUNCTION__);
+		pthread_create(&thrScreenSaver, NULL, ScreenSaverPrg, (void*) this);
+		pthread_detach(thrScreenSaver);
+	}
+
+}
+
+void CScreenSaver::Stop()
+{
+	if(thrScreenSaver)
+	{
+		pthread_cancel(thrScreenSaver);
+		thrScreenSaver = 0;
+	}
+
+	if(thrScreenSaver)
+		pthread_cancel(thrScreenSaver);
+	thrScreenSaver = 0;
+
+	CAudioMute::getInstance()->enableMuteIcon(true);
+}
+
+void* CScreenSaver::ScreenSaverPrg(void* arg)
+{
+	pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, 0);
+	pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, 0);
+
+	CScreenSaver * PScreenSaver = static_cast<CScreenSaver*>(arg);
+
+	PScreenSaver->ReadDir(); //TODO kill Screensaver if false
+	PScreenSaver->m_frameBuffer->Clear();
+
+	while(1)
+	{
+		PScreenSaver->PaintPicture();
+		sleep(10);
+	}
+	return 0;
+}
+
+bool CScreenSaver::ReadDir()
+{
+	char* dir_name = (char *) g_settings.screensaver_dir.c_str();
+	struct dirent *dirpointer;
+	DIR *dir;
+	char curr_ext[5];
+	int curr_lenght;
+	char* p;
+	bool ret = false;
+
+	v_bg_files.clear();
+
+	/* open dir */
+	if((dir=opendir(dir_name)) == NULL) {
+		fprintf(stderr,"[CScreenSaver] Error opendir ...\n");
+		return ret;
+	}
+
+	/* read complete dir */
+	while((dirpointer=readdir(dir)) != NULL)
+	{
+		curr_lenght = strlen((*dirpointer).d_name);
+		string str = dir_name;
+//		printf("%d\n",curr_lenght);
+		if(curr_lenght > 4)
+		{
+			strncpy(curr_ext,(*dirpointer).d_name+(curr_lenght-4),5);
+
+			for (p = curr_ext; *p; ++p)
+				*p = (char)tolower(*p);
+//			printf("%s\n",curr_ext);
+
+			if((strcmp(".jpg",curr_ext))
+				//|| (strcmp(".png",curr_ext))
+				//|| (strcmp(".bmp",curr_ext))
+			)
+			continue;
+
+			str += "/";
+			str += (*dirpointer).d_name;
+			v_bg_files.push_back(str);
+		}
+	}
+
+	sort(v_bg_files.begin(), v_bg_files.end());
+
+	/* close pointer */
+	if(closedir(dir) == -1)
+		printf("[CScreenSaver] Error no closed %s\n", dir_name);
+
+	if(!v_bg_files.empty())
+		ret = true;
+	else
+		printf("[CScreenSaver] no picture found\n");
+
+	return ret;
+}
+
+
+void CScreenSaver::PaintPicture()
+{
+	if(v_bg_files.empty())
+		return;
+
+	if( (index >= v_bg_files.size()) || (access(v_bg_files.at(index).c_str(), F_OK)) )
+	{
+		ReadDir();
+		index = 0;
+		return;
+	}
+
+	printf("[CScreenSaver] ShowPicture: %s\n", v_bg_files.at(index).c_str());
+	videoDecoder->StopPicture();
+	videoDecoder->ShowPicture(v_bg_files.at(index).c_str());
+	index++;
+
+	if(index ==  v_bg_files.size())
+		index = 0;
+}