Merge pull request #11 from CrystSw/bugfix

キャンバスを画像として保存する際に背景が透過されていた問題の修正

webroot/js/olinvas.js

@@ -1,7 +1,7 @@
 /*==============================
 Olinvas Client
 --------------------------------
-client ver.1.1.4
+client ver.1.1.4.1
 protocol ver.1.1
 ==============================*/
 
@@ -173,7 +173,9 @@ var serverPort = 13181;
 					break;
 
 				case 'ClearBoard-Echo':
-					ctx.clearRect(0, 0, canvas.width, canvas.height);
+					//ctx.clearRect(0, 0, canvas.width, canvas.height);
+					ctx.fillStyle = "rgb(255,255,255)";
+					ctx.fillRect(0, 0, canvas.width, canvas.height);
 					break;
 
 				case 'TooConnection-Echo':
@@ -362,6 +364,9 @@ var serverPort = 13181;
 		var mouseY = null;
 		var pointerId = null;
 
+		ctx.fillStyle = "rgb(255,255,255)";
+		ctx.fillRect(0, 0, canvas.width, canvas.height);
+
 		function drawStart(event){
 			if(event.pointerType === 'pen' && pointerId === null){
 				event.preventDefault();