From: john@roojs.com <john@roojs.com>
Date: Wed, 16 Jan 2019 02:38:16 +0000 (+0800)
Subject: FIX: bezier resize without width
X-Git-Url: http://git.roojs.org/?p=roojs1;a=commitdiff_plain;h=2542b67d1a0768025056f2f330bfe50b64d1ad38

FIX: bezier resize without width
---

diff --git a/Roo/bootstrap/BezierSignature.js b/Roo/bootstrap/BezierSignature.js
index 379c181cc3..65bb2d26ba 100644
--- a/Roo/bootstrap/BezierSignature.js
+++ b/Roo/bootstrap/BezierSignature.js
@@ -174,8 +174,11 @@ Roo.extend(Roo.bootstrap.BezierSignature, Roo.bootstrap.Component,  {
         
         var canvas = this.canvasEl().dom;
         var ctx = this.canvasElCtx();
-        var img_data = ctx.getImageData(0, 0, canvas.width, canvas.height);
+        var img_data = false;
         
+        if(canvas.width > 0) {
+            var img_data = ctx.getImageData(0, 0, canvas.width, canvas.height);
+        }
         // setting canvas width will clean img data
         canvas.width = 0;
         
@@ -187,7 +190,9 @@ Roo.extend(Roo.bootstrap.BezierSignature, Roo.bootstrap.Component,  {
         
         canvas.width = this.el.dom.clientWidth - padding_left - padding_right;
         
-        ctx.putImageData(img_data, 0, 0);
+        if(img_data) {
+            ctx.putImageData(img_data, 0, 0);
+        }
     },
     
     _handleMouseDown: function(e)
diff --git a/roojs-bootstrap-debug.js b/roojs-bootstrap-debug.js
index 3fc684a5d2..c991ffff1c 100644
--- a/roojs-bootstrap-debug.js
+++ b/roojs-bootstrap-debug.js
@@ -41676,8 +41676,11 @@ Roo.extend(Roo.bootstrap.BezierSignature, Roo.bootstrap.Component,  {
         
         var canvas = this.canvasEl().dom;
         var ctx = this.canvasElCtx();
-        var img_data = ctx.getImageData(0, 0, canvas.width, canvas.height);
+        var img_data = false;
         
+        if(canvas.width > 0) {
+            var img_data = ctx.getImageData(0, 0, canvas.width, canvas.height);
+        }
         // setting canvas width will clean img data
         canvas.width = 0;
         
@@ -41689,7 +41692,9 @@ Roo.extend(Roo.bootstrap.BezierSignature, Roo.bootstrap.Component,  {
         
         canvas.width = this.el.dom.clientWidth - padding_left - padding_right;
         
-        ctx.putImageData(img_data, 0, 0);
+        if(img_data) {
+            ctx.putImageData(img_data, 0, 0);
+        }
     },
     
     _handleMouseDown: function(e)
diff --git a/roojs-bootstrap.js b/roojs-bootstrap.js
index b8a92f657d..6a9ae0465c 100644
--- a/roojs-bootstrap.js
+++ b/roojs-bootstrap.js
@@ -1736,8 +1736,8 @@ if(this.cls){A+=' '+this.cls;}var B=['lg','md','sm','xs'];for(var i=0;i<B.length
 ]},{tag:'input',type:'file',style:'display: none'}]};return C;},initEvents:function(){Roo.bootstrap.BezierSignature.superclass.initEvents.call(this);var A=this.canvasEl();A.dom.style.touchAction='none';A.dom.style.msTouchAction='none';this.mouse_btn_down=false;
 A.on('mousedown',this._handleMouseDown,this);A.on('mousemove',this._handleMouseMove,this);Roo.select('html').first().on('mouseup',this._handleMouseUp,this);if(window.PointerEvent){A.on('pointerdown',this._handleMouseDown,this);A.on('pointermove',this._handleMouseMove,this);
 Roo.select('html').first().on('pointerup',this._handleMouseUp,this);}if('ontouchstart' in window){A.on('touchstart',this._handleTouchStart,this);A.on('touchmove',this._handleTouchMove,this);A.on('touchend',this._handleTouchEnd,this);}Roo.EventManager.onWindowResize(this.resize,this,true);
-this.fileEl().on('change',this.uploadImage,this);this.clear();this.resize();},resize:function(){var A=this.canvasEl().dom;var B=this.canvasElCtx();var C=B.getImageData(0,0,A.width,A.height);A.width=0;var D=window.getComputedStyle?getComputedStyle(this.el.dom,null):this.el.dom.currentStyle;
-var E=parseInt(D.paddingLeft)||0;var F=parseInt(D.paddingRight)||0;A.width=this.el.dom.clientWidth-E-F;B.putImageData(C,0,0);},_handleMouseDown:function(e){if(e.browserEvent.which===1){this.mouse_btn_down=true;this.strokeBegin(e);}},_handleMouseMove:function(e){if(this.mouse_btn_down){this.strokeMoveUpdate(e);
+this.fileEl().on('change',this.uploadImage,this);this.clear();this.resize();},resize:function(){var A=this.canvasEl().dom;var B=this.canvasElCtx();var C=false;if(A.width>0){var C=B.getImageData(0,0,A.width,A.height);}A.width=0;var D=window.getComputedStyle?getComputedStyle(this.el.dom,null):this.el.dom.currentStyle;
+var E=parseInt(D.paddingLeft)||0;var F=parseInt(D.paddingRight)||0;A.width=this.el.dom.clientWidth-E-F;if(C){B.putImageData(C,0,0);}},_handleMouseDown:function(e){if(e.browserEvent.which===1){this.mouse_btn_down=true;this.strokeBegin(e);}},_handleMouseMove:function(e){if(this.mouse_btn_down){this.strokeMoveUpdate(e);
 }},_handleMouseUp:function(e){if(e.browserEvent.which===1&&this.mouse_btn_down){this.mouse_btn_down=false;this.strokeEnd(e);}},_handleTouchStart:function(e){e.preventDefault();if(e.browserEvent.targetTouches.length===1){this.strokeBegin(e);}},_handleTouchMove:function(e){e.preventDefault();
 this.strokeMoveUpdate(e);},_handleTouchEnd:function(e){var A=e.target===this.canvasEl().dom;if(A){e.preventDefault();this.strokeEnd(e);}},reset:function(){this._lastPoints=[];this._lastVelocity=0;this._lastWidth=(this.min_width+this.max_width)/2;this.canvasElCtx().fillStyle=this.dot_color;
 },strokeMoveUpdate:function(e){this.strokeUpdate(e);if(this.throttle){this.throttle(this.strokeUpdate,this.throttle);}else{this.strokeUpdate(e);}},strokeBegin:function(e){var A={color:this.dot_color,points:[]};if(typeof this.onBegin==='function'){this.onBegin(e);