1 files changed, 112 insertions, 0 deletions
diff --git a/plugin_test.c b/plugin_test.c
new file mode 100644
index 0000000..340854f
--- /dev/null
+++ b/plugin_test.c
@@ -0,0 +1,112 @@
+/* $Id: plugin_test.c 840 2007-09-09 12:17:42Z michael $
+ * $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/plugin_test.c $
+*
+* Handy functions for testing displays and debugging code.
+*
+* Copyright (C) 2004 Andy Baxter.
+*
+* Based on sample plugin which is
+* Copyright (C) 2003 Michael Reinelt <michael@reinelt.co.at>
+* Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
+*
+* This file is part of LCD4Linux.
+*
+* LCD4Linux 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, or (at your option)
+* any later version.
+*
+* LCD4Linux 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*
+*/
+
+int plugin_init_test(void);
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <ctype.h>
+
+#include "debug.h"
+#include "plugin.h"
+
+#ifdef WITH_DMALLOC
+#include <dmalloc.h>
+#endif
+
+
+/* used for testing bars - keeps values for a series of 10 bars,
+ * which are incremented and decremented between 0 and rmax by
+ * amount rdelta every time they are read. Starting value is rstart.
+ * rbar gives the number of the test bar. 
+ */
+static void my_test_bar(RESULT * result, RESULT * rbar, RESULT * rmax, RESULT * rstart, RESULT * rdelta)
+{
+    static double values[10] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
+    static double deltas[10];
+    int bar;
+    double max, delta, value;
+
+    max = R2N(rmax);
+    delta = R2N(rdelta);
+
+    /* the maths is just to stop double rounding errors and bad values. */
+    bar = ((int) floor(R2N(rbar) + 0.1)) % 10;
+    if (fabs(delta) > 0.1) {
+	/* don't move or init the bar if delta=0 (the widget is only browsing) */
+	if (values[bar] == -1) {
+	    /* first time called. */
+	    values[bar] = R2N(rstart);
+	    deltas[bar] = delta;
+	};
+	values[bar] += deltas[bar];
+    };
+    if (values[bar] < 0 || values[bar] > max) {
+	/* turn around. */
+	deltas[bar] = -deltas[bar];
+	values[bar] += deltas[bar];
+    };
+    value = values[bar];
+    SetResult(&result, R_NUMBER, &value);
+}
+
+
+/* like above, but just switches a value between 1 and -1. Can use to test
+ * visibility of icons. 
+ */
+static void my_test_onoff(RESULT * result, RESULT * arg1)
+{
+    static int on[10] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
+    int i;
+    double val;
+
+    i = ((int) floor(R2N(arg1) + 0.1)) % 10;
+    on[i] = -on[i];
+    val = (double) on[i];
+
+    SetResult(&result, R_NUMBER, &val);
+}
+
+
+int plugin_init_test(void)
+{
+
+    AddFunction("test::bar", 4, my_test_bar);
+    AddFunction("test::onoff", 1, my_test_onoff);
+
+    return 0;
+}
+
+void plugin_exit_test(void)
+{
+    /* empty */
+}