add rotate_ext_input

@@ -369,11 +369,12 @@
 
         var last_ext_press = 0;
 		function draw_ext_input(px,py,press) {
+			//x = canvas_width - px * ratio_x;
+			//y = canvas_height - py * ratio_y;
+
 			x = px * ratio_x;
 			y = py * ratio_y;
 
-			//y = canvas_height - py * ratio_y;
-
 			if(last_ext_press == 0 && press == 1){
 				ctx.beginPath();
 
@@ -832,6 +833,10 @@
 			ext_input_connecting = !ext_input_connecting;
 		} 
 
+		function rotateExtInput() {
+			doCmd("rotate_ext_input");
+		}
+
 		function doCmd(cmdName) {
 			writeToScreen(cmdName);
 			var cmd = new Object();
@@ -1076,6 +1081,14 @@
 				Uint32param[0] = 1;
 				cmd.data = new Uint8Array(buffer, 0, cmd.data_len);
 			}
+			else if(cmdName == "rotate_ext_input") {
+				cmd.type = 57;
+				cmd.data_len = 4;
+				var buffer = new ArrayBuffer(cmd.data_len);
+				var Uint32param = new Uint32Array(buffer, 0, 1);
+				Uint32param[0] = 2;
+				cmd.data = new Uint8Array(buffer, 0, cmd.data_len);
+			}
 
 			doSendWSCmd(cmd);
 		}
@@ -1570,15 +1583,10 @@
 	</table>
 		</div>
 		<div>
-			<div>
-				<button type="button" id="mouse" onclick="javascript:onMouseClick(this);">mouse</button>
-				<button type="button" id="connect" onclick="javascript:onConnectClick(this);">connect</button>
-				<button type="button" id="rotate" onclick="javascript:onRotateClick(this);">rotate</button>
-				<button type="button" id="clear" onclick="javascript:onClearClick(this);">clear</button>
-			</div>
 			<div id="page">
 				<div class="header">
 					<a id="new" class="navbtn" onclick="newCanvas()">New</a>
+					<a id="rotate_ext_input" class="navbtn" onclick="rotateExtInput()">Rotate</a>
 					<div class="title">Sketch Pad</div>
 				</div>
 				<div id="content">