add clock screen (ported from ncmpc)

1 files changed, 121 insertions, 0 deletions

diff --git a/src/clock.cpp b/src/clock.cpp
new file mode 100644
index 00000000..122fb58c
--- /dev/null
+++ b/src/clock.cpp
@@ -0,0 +1,121 @@
+/***************************************************************************
+ *   Copyright (C) 2008-2009 by Andrzej Rybczak                            *
+ *   electricityispower@gmail.com                                          *
+ *                                                                         *
+ *   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, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.              *
+ ***************************************************************************/
+
+/// NOTICE: Major part of this code is ported from ncmpc's clock screen
+
+#include "clock.h"
+
+#ifdef ENABLE_CLOCK
+
+#include <iomanip>
+#include <sstream>
+
+#include "settings.h"
+
+namespace
+{
+	short disp[11] =
+	{
+		075557, 011111, 071747, 071717,
+		055711, 074717, 074757, 071111,
+		075757, 075717, 002020
+	};
+	
+	long older[6], next[6], newer[6], mask;
+	
+	void set(int t, int n)
+	{
+		int m = 7 << n;
+		for (int i = 0; i < 5; i++)
+		{
+			next[i] |= ((disp[t] >> ((4 - i) * 3)) & 07) << n;
+			mask |= (next[i] ^ older[i]) & m;
+		}
+		if (mask & m)
+			mask |= m;
+	}
+}
+
+void InitClock()
+{
+	for (int i = 0; i < 5; i++)
+		older[i] = newer[i] = next[i] = 0;
+}
+
+void DisplayClock(Window &w, const tm *time)
+{
+	mask = 0;
+	set(time->tm_sec % 10, 0);
+	set(time->tm_sec / 10, 4);
+	set(time->tm_min % 10, 10);
+	set(time->tm_min / 10, 14);
+	set(time->tm_hour % 10, 20);
+	set(time->tm_hour / 10, 24);
+	set(10, 7);
+	set(10, 17);
+	
+	char buf[54];
+	strftime(buf, 64, "%x", time);
+	attron(COLOR_PAIR(Config.main_color));
+	mvprintw(w.GetStartY()+w.GetHeight(), w.GetStartX()+(w.GetWidth()-strlen(buf))/2, "%s", buf);
+	attroff(COLOR_PAIR(Config.main_color));
+	refresh();
+	
+	for (int k = 0; k < 6; k++)
+	{
+		newer[k] = (newer[k] & ~mask) | (next[k] & mask);
+		next[k] = 0;
+		for (int s = 1; s >= 0; s--)
+		{
+			w.Reverse(s);
+			for (int i = 0; i < 6; i++)
+			{
+				long a = (newer[i] ^ older[i]) & (s ? newer : older)[i];
+				if (a != 0)
+				{
+					long t = 1 << 26;
+					for (int j = 0; t; t >>= 1, j++)
+					{
+						if (a & t)
+						{
+							if (!(a & (t << 1)))
+							{
+								w.GotoXY(2*j+2, i);
+							}
+							if (Config.clock_display_seconds || j < 18)
+								w << "  ";
+						}
+					}
+				}
+				if (!s)
+				{
+					older[i] = newer[i];
+				}
+			}
+			if (!s)
+			{
+				w.Refresh();
+			}
+		}
+	}
+}
+
+#endif // ENABLE_CLOCK
+