functions for drawing events in day grid.

1 files changed, 38 insertions, 0 deletions

diff --git a/functions/draw_functions.php b/functions/draw_functions.php
new file mode 100644
index 0000000..ee7fd91
--- /dev/null
+++ b/functions/draw_functions.php
@@ -0,0 +1,38 @@
+<?php
+// function returns starttime and endtime and event length for drawing into a grid
+
+function drawEventTimes ($start, $end) {
+	global $gridLength;
+	
+	ereg ("([0-9]{2})([0-9]{2})", $start, $time);
+	$sta_h = $time[1];
+	$sta_min = $time[2];
+	$sta_min = sprintf("%02d", floor($sta_min / $gridLength) * $gridLength);
+	if ($sta_min == 60) {
+		$sta_h = sprintf("%02d", ($sta_h + 1));
+		$sta_min = "00";
+	}
+	
+	ereg ("([0-9]{2})([0-9]{2})", $end, $time);
+	$end_h = $time[1];
+	$end_min = $time[2];
+	$end_min = sprintf("%02d", floor($end_min / $gridLength) * $gridLength);
+	if ($end_min == 60) {
+		$end_h = sprintf("%02d", ($end_h + 1));
+		$end_min = "00";
+	}
+	
+	if (($sta_h . $sta_min) == ($end_h . $end_min))  {
+		$end_min += $gridLength;
+		if ($end_min == 60) {
+			$end_h = sprintf("%02d", ($end_h + 1));
+			$end_min = "00";
+		}
+	}
+	
+	$draw_len = ($end_h * 60 + $end_min) - ($sta_h * 60 + $sta_min);
+	
+	return array ("draw_start" => ($sta_h . $sta_min), "draw_end" => ($end_h . $end_min), "draw_length" => $draw_len);
+}
+
+?>
\ No newline at end of file