radiotext: rework radiotext handling

Radiotext moved into a separate class and will be shown with screensaver.

src/gui/radiotext_window.h

@@ -0,0 +1,68 @@
+/*
+	Based up Neutrino-GUI - Tuxbox-Project
+	Copyright (C) 2001 by Steffen Hehn 'McClean'
+
+	Class for radio text handling
+	Copyright (C) 2019, 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 __C_GUI_RADIO_TEXT_H__
+#define __C_GUI_RADIO_TEXT_H__
+
+#include <gui/components/cc.h>
+#include <sigc++/signal.h>
+#include <string>
+
+class CRadioTextGUI : public CComponentsWindow
+{
+	private:
+		std::vector<std::string> v_lines_title;
+		std::vector<std::string> v_lines_desc;
+		Font *font1, *font2;
+		typedef std::pair <t_channel_id, t_channel_id> channel_id_pairs; //pair = current id, old id
+		channel_id_pairs channel_id_pair;
+
+		bool hasDescription();
+		bool hasTitle();
+		bool isDubLine(std::vector<std::string>& vec, const std::string& to_compare_str);
+		void addLine(std::vector<std::string>& vec, std::string str);
+		bool GetData();
+		void initSlots();
+		void resetPos();
+		void Init();
+		void InitInfoItems();
+		void _clearSavedScreen() {clearSavedScreen();}
+
+
+	public:
+		CRadioTextGUI();
+		virtual~CRadioTextGUI();
+
+		void kill(const fb_pixel_t& bg_color = COL_BACKGROUND_PLUS_0, const int& corner_radius = -1, const int& fblayer_type = ~CC_FBDATA_TYPES);
+		void clearLines();
+		bool hasLines(){ return (hasTitle() || hasDescription());}
+		void paint(const bool &do_save_bg);
+
+		sigc::slot<void>sl_after_decode_line,
+				sl_on_start_screensaver,
+				sl_on_stop_screensaver,
+				sl_on_after_kill_infobar,
+				sl_on_show_radiotext;
+};
+#endif