Hierarchy
Ext.BaseExt.draw.engine.ImageExporter
Files
ImageExporter.js

Exports a Surface to an image. To do this,\nthe svg string must be sent to a remote server and processed.

\n\n

Sending the data

\n\n

A post request is made to the URL. The following fields are sent:

\n\n

width: The width of the image
height: The height of the image
type: The image type to save as, see supportedTypes
svg: The svg string for the surface

\n\n\n

The response

\n\n

It is expected that the user will be prompted with an image download.\nAs such, the following options should be set on the server:

\n\n

Content-Disposition: 'attachment, filename=\"chart.png\"'
Content-Type: 'image/png'

\n\n\n

Important: By default, chart data is sent to a server operated\nby Sencha to do data processing. You may change this default by\nsetting the defaultUrl of this class.\nIn addition, please note that this service only creates PNG images.

Properties

Defined By

Instance Properties

Ext.Base
view source

$className : Stringprivate

...

Defaults to: 'Ext.Base'

Ext.Base
view source

configMap : Objectprivate

...

Defaults to: {}

Ext.draw.engine.ImageExporter
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defaultUrl : String

The default URL to submit the form request. ...

The default URL to submit the form request.

Defaults to: "http://svg.sencha.io"

Ext.draw.engine.ImageExporter
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formCls : Stringprivate

...

Defaults to: Ext.baseCSSPrefix + 'hide-display'

Ext.draw.engine.ImageExporter
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heightParam : String

The name of the height parameter to be sent to the server. ...

The name of the height parameter to be sent to the server.\nThe Sencha IO server expects it to be the default value.

Defaults to: "height"

Ext.Base
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initConfigList : Arrayprivate

...

Defaults to: []

Ext.Base
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initConfigMap : Objectprivate

...

Defaults to: {}

Ext.Base
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isInstance : Booleanprivate

...

Defaults to: true

Ext.Base
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self : Ext.Classprotected

Get the reference to the current class from which this object was instantiated. ...

Get the reference to the current class from which this object was instantiated. Unlike statics,\nthis.self is scope-dependent and it's meant to be used for dynamic inheritance. See statics\nfor a detailed comparison

\n\n

Ext.define('My.Cat', {\n    statics: {\n        speciesName: 'Cat' // My.Cat.speciesName = 'Cat'\n    },\n\n    constructor: function() {\n        alert(this.self.speciesName); // dependent on 'this'\n    },\n\n    clone: function() {\n        return new this.self();\n    }\n});\n\n\nExt.define('My.SnowLeopard', {\n    extend: 'My.Cat',\n    statics: {\n        speciesName: 'Snow Leopard'         // My.SnowLeopard.speciesName = 'Snow Leopard'\n    }\n});\n\nvar cat = new My.Cat();                     // alerts 'Cat'\nvar snowLeopard = new My.SnowLeopard();     // alerts 'Snow Leopard'\n\nvar clone = snowLeopard.clone();\nalert(Ext.getClassName(clone));             // alerts 'My.SnowLeopard'\n

Ext.draw.engine.ImageExporter
view source

supportedTypes : Array

A list of export types supported by the server ...

A list of export types supported by the server

Defaults to: ["image/png", "image/jpeg"]

Ext.draw.engine.ImageExporter
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svgParam : String

The name of the svg parameter to be sent to the server. ...

The name of the svg parameter to be sent to the server.\nThe Sencha IO server expects it to be the default value.

Defaults to: "svg"

Ext.draw.engine.ImageExporter
view source

typeParam : String

The name of the type parameter to be sent to the server. ...

The name of the type parameter to be sent to the server.\nThe Sencha IO server expects it to be the default value.

Defaults to: "type"

Ext.draw.engine.ImageExporter
view source

widthParam : String

The name of the width parameter to be sent to the server. ...

The name of the width parameter to be sent to the server.\nThe Sencha IO server expects it to be the default value.

Defaults to: "width"

Defined By

Static Properties

Ext.Base
view source

$onExtended : Arrayprivatestatic

...

Defaults to: []

Methods

Defined By

Instance Methods

Ext.Base
view source

callOverridden( args ) : Objectdeprecatedprotected

Call the original method that was previously overridden with override\n\nExt.define('My.Cat', {\n constructor: functi...

Call the original method that was previously overridden with override

\n\n

Ext.define('My.Cat', {\n    constructor: function() {\n        alert(\"I'm a cat!\");\n    }\n});\n\nMy.Cat.override({\n    constructor: function() {\n        alert(\"I'm going to be a cat!\");\n\n        this.callOverridden();\n\n        alert(\"Meeeeoooowwww\");\n    }\n});\n\nvar kitty = new My.Cat(); // alerts \"I'm going to be a cat!\"\n                          // alerts \"I'm a cat!\"\n                          // alerts \"Meeeeoooowwww\"\n

This method has been deprecated

as of 4.1. Use callParent instead.

\n\n

Parameters

args : Array/Arguments
The arguments, either an array or the arguments object\nfrom the current method, for example: this.callOverridden(arguments)
\n

Returns

Object
Returns the result of calling the overridden method
\n

Ext.Base
view source

callParent( args ) : Objectprotected

Call the \"parent\" method of the current method. ...

Call the \"parent\" method of the current method. That is the method previously\noverridden by derivation or by an override (see Ext.define).

\n\n

 Ext.define('My.Base', {\n     constructor: function (x) {\n         this.x = x;\n     },\n\n     statics: {\n         method: function (x) {\n             return x;\n         }\n     }\n });\n\n Ext.define('My.Derived', {\n     extend: 'My.Base',\n\n     constructor: function () {\n         this.callParent([21]);\n     }\n });\n\n var obj = new My.Derived();\n\n alert(obj.x);  // alerts 21\n

\n\n

This can be used with an override as follows:

\n\n

 Ext.define('My.DerivedOverride', {\n     override: 'My.Derived',\n\n     constructor: function (x) {\n         this.callParent([x*2]); // calls original My.Derived constructor\n     }\n });\n\n var obj = new My.Derived();\n\n alert(obj.x);  // now alerts 42\n

\n\n

This also works with static methods.

\n\n

 Ext.define('My.Derived2', {\n     extend: 'My.Base',\n\n     statics: {\n         method: function (x) {\n             return this.callParent([x*2]); // calls My.Base.method\n         }\n     }\n });\n\n alert(My.Base.method(10);     // alerts 10\n alert(My.Derived2.method(10); // alerts 20\n

\n\n

Lastly, it also works with overridden static methods.

\n\n

 Ext.define('My.Derived2Override', {\n     override: 'My.Derived2',\n\n     statics: {\n         method: function (x) {\n             return this.callParent([x*2]); // calls My.Derived2.method\n         }\n     }\n });\n\n alert(My.Derived2.method(10); // now alerts 40\n

\n\n

To override a method and replace it and also call the superclass method, use\ncallSuper. This is often done to patch a method to fix a bug.

Parameters

args : Array/Arguments
The arguments, either an array or the arguments object\nfrom the current method, for example: this.callParent(arguments)
\n

Returns

Object
Returns the result of calling the parent method
\n

Ext.Base
view source

callSuper( args ) : Objectprotected

This method is used by an override to call the superclass method but bypass any\noverridden method. ...

This method is used by an override to call the superclass method but bypass any\noverridden method. This is often done to \"patch\" a method that contains a bug\nbut for whatever reason cannot be fixed directly.

\n\n

Consider:

\n\n

 Ext.define('Ext.some.Class', {\n     method: function () {\n         console.log('Good');\n     }\n });\n\n Ext.define('Ext.some.DerivedClass', {\n     method: function () {\n         console.log('Bad');\n\n         // ... logic but with a bug ...\n\n         this.callParent();\n     }\n });\n

\n\n

To patch the bug in DerivedClass.method, the typical solution is to create an\noverride:

\n\n

 Ext.define('App.paches.DerivedClass', {\n     override: 'Ext.some.DerivedClass',\n\n     method: function () {\n         console.log('Fixed');\n\n         // ... logic but with bug fixed ...\n\n         this.callSuper();\n     }\n });\n

\n\n

The patch method cannot use callParent to call the superclass method since\nthat would call the overridden method containing the bug. In other words, the\nabove patch would only produce \"Fixed\" then \"Good\" in the console log, whereas,\nusing callParent would produce \"Fixed\" then \"Bad\" then \"Good\".

Parameters

args : Array/Arguments
The arguments, either an array or the arguments object\nfrom the current method, for example: this.callSuper(arguments)
\n

Returns

Object
Returns the result of calling the superclass method
\n

Ext.Base
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configClass( )private

...

Ext.Base
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destroy( )private

...

Overrides: Ext.state.Stateful.destroy, Ext.util.ElementContainer.destroy, Ext.AbstractComponent.destroy, Ext.AbstractPlugin.destroy

Ext.draw.engine.ImageExporter
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generate( surface, [config] ) : Boolean

Exports the surface to an image ...

Exports the surface to an image

Parameters

surface : Ext.draw.Surface
The surface to export
\n
config : Object (optional)
The following config options are supported:
\n
- width : Number
  A width to send to the server to for\nconfiguring the image height
  \n
- height : Number
  A height to send to the server for\nconfiguring the image height
  \n
- url : String
  The url to post the data to. Defaults to\nthe defaultUrl configuration on the class.
  \n
- type : String
  The type of image to export. See the\nsupportedTypes
  \n
- widthParam : String
  The name of the width parameter to send\nto the server. Defaults to widthParam
  \n
- heightParam : String
  The name of the height parameter to send\nto the server. Defaults to heightParam
  \n
- typeParam : String
  The name of the type parameter to send\nto the server. Defaults to typeParam
  \n
- svgParam : String
  The name of the svg parameter to send\nto the server. Defaults to svgParam
  \n

Returns

Boolean
True if the surface was successfully sent to the server.
\n

Ext.Base
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getConfig( name )private

...

Parameters

name : Object
\n

Ext.Base
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getInitialConfig( [name] ) : Object/Mixed

Returns the initial configuration passed to constructor when instantiating\nthis class. ...

Returns the initial configuration passed to constructor when instantiating\nthis class.

Parameters

name : String (optional)
Name of the config option to return.
\n

Returns

Object/Mixed
The full config object or a single config value\nwhen name parameter specified.
\n

Ext.Base
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hasConfig( config )private

...

Parameters

config : Object
\n

Ext.Base
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initConfig( config ) : Ext.Basechainableprotected

Initialize configuration for this class. ...

Initialize configuration for this class. a typical example:

\n\n

Ext.define('My.awesome.Class', {\n    // The default config\n    config: {\n        name: 'Awesome',\n        isAwesome: true\n    },\n\n    constructor: function(config) {\n        this.initConfig(config);\n    }\n});\n\nvar awesome = new My.awesome.Class({\n    name: 'Super Awesome'\n});\n\nalert(awesome.getName()); // 'Super Awesome'\n

Parameters

config : Object
\n

Returns

Ext.Base
this
\n

Ext.Base
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onConfigUpdate( names, callback, scope )private

...

Parameters

names : Object
\n
callback : Object
\n
scope : Object
\n

Ext.Base
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setConfig( config, applyIfNotSet ) : Ext.Basechainableprivate

...

Parameters

config : Object
\n
applyIfNotSet : Object
\n

Returns

Ext.Base
this
\n

Ext.Base
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statics( ) : Ext.Classprotected

Get the reference to the class from which this object was instantiated. ...

Get the reference to the class from which this object was instantiated. Note that unlike self,\nthis.statics() is scope-independent and it always returns the class from which it was called, regardless of what\nthis points to during run-time

\n\n

Ext.define('My.Cat', {\n    statics: {\n        totalCreated: 0,\n        speciesName: 'Cat' // My.Cat.speciesName = 'Cat'\n    },\n\n    constructor: function() {\n        var statics = this.statics();\n\n        alert(statics.speciesName);     // always equals to 'Cat' no matter what 'this' refers to\n                                        // equivalent to: My.Cat.speciesName\n\n        alert(this.self.speciesName);   // dependent on 'this'\n\n        statics.totalCreated++;\n    },\n\n    clone: function() {\n        var cloned = new this.self;                      // dependent on 'this'\n\n        cloned.groupName = this.statics().speciesName;   // equivalent to: My.Cat.speciesName\n\n        return cloned;\n    }\n});\n\n\nExt.define('My.SnowLeopard', {\n    extend: 'My.Cat',\n\n    statics: {\n        speciesName: 'Snow Leopard'     // My.SnowLeopard.speciesName = 'Snow Leopard'\n    },\n\n    constructor: function() {\n        this.callParent();\n    }\n});\n\nvar cat = new My.Cat();                 // alerts 'Cat', then alerts 'Cat'\n\nvar snowLeopard = new My.SnowLeopard(); // alerts 'Cat', then alerts 'Snow Leopard'\n\nvar clone = snowLeopard.clone();\nalert(Ext.getClassName(clone));         // alerts 'My.SnowLeopard'\nalert(clone.groupName);                 // alerts 'Cat'\n\nalert(My.Cat.totalCreated);             // alerts 3\n

Returns

Ext.Class
\n

Defined By

Static Methods

Ext.Base
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addConfig( config )privatestatic

...

Parameters

config : Object
\n

Ext.Base
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addInheritableStatics( members )chainableprivatestatic

...

Parameters

members : Object
\n

Ext.Base
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addMember( name, member )chainableprivatestatic

...

Parameters

name : Object
\n
member : Object
\n

Ext.Base
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addMembers( members )chainablestatic

Add methods / properties to the prototype of this class. ...

Add methods / properties to the prototype of this class.

\n\n

Ext.define('My.awesome.Cat', {\n    constructor: function() {\n        ...\n    }\n});\n\n My.awesome.Cat.addMembers({\n     meow: function() {\n        alert('Meowww...');\n     }\n });\n\n var kitty = new My.awesome.Cat;\n kitty.meow();\n

Parameters

members : Object
\n

Ext.Base
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addStatics( members ) : Ext.Basechainablestatic

Add / override static properties of this class. ...

Add / override static properties of this class.

\n\n

Ext.define('My.cool.Class', {\n    ...\n});\n\nMy.cool.Class.addStatics({\n    someProperty: 'someValue',      // My.cool.Class.someProperty = 'someValue'\n    method1: function() { ... },    // My.cool.Class.method1 = function() { ... };\n    method2: function() { ... }     // My.cool.Class.method2 = function() { ... };\n});\n

Parameters

members : Object
\n

Returns

Ext.Base
this
\n

Ext.Base
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addXtype( xtype )chainableprivatestatic

...

Parameters

xtype : Object
\n

Ext.Base
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borrow( fromClass, members ) : Ext.Basechainableprivatestatic

Borrow another class' members to the prototype of this class. ...

Borrow another class' members to the prototype of this class.

\n\n

Ext.define('Bank', {\n    money: '$$$',\n    printMoney: function() {\n        alert('$$$$$$$');\n    }\n});\n\nExt.define('Thief', {\n    ...\n});\n\nThief.borrow(Bank, ['money', 'printMoney']);\n\nvar steve = new Thief();\n\nalert(steve.money); // alerts '$$$'\nsteve.printMoney(); // alerts '$$$$$$$'\n

Parameters

fromClass : Ext.Base
The class to borrow members from
\n
members : Array/String
The names of the members to borrow
\n

Returns

Ext.Base
this
\n

Ext.Base
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create( ) : Objectstatic

Create a new instance of this Class. ...

Create a new instance of this Class.

\n\n

Ext.define('My.cool.Class', {\n    ...\n});\n\nMy.cool.Class.create({\n    someConfig: true\n});\n

\n\n

All parameters are passed to the constructor of the class.

Returns

Object
the created instance.
\n

Ext.Base
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createAlias( alias, origin )static

Create aliases for existing prototype methods. ...

Create aliases for existing prototype methods. Example:

\n\n

Ext.define('My.cool.Class', {\n    method1: function() { ... },\n    method2: function() { ... }\n});\n\nvar test = new My.cool.Class();\n\nMy.cool.Class.createAlias({\n    method3: 'method1',\n    method4: 'method2'\n});\n\ntest.method3(); // test.method1()\n\nMy.cool.Class.createAlias('method5', 'method3');\n\ntest.method5(); // test.method3() -> test.method1()\n

Parameters

alias : String/Object
The new method name, or an object to set multiple aliases. See\nflexSetter
\n
origin : String/Object
The original method name
\n

Ext.Base
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extend( config )privatestatic

...

Parameters

config : Object
\n

Ext.Base
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getName( ) : Stringstatic

Get the current class' name in string format. ...

Get the current class' name in string format.

\n\n

Ext.define('My.cool.Class', {\n    constructor: function() {\n        alert(this.self.getName()); // alerts 'My.cool.Class'\n    }\n});\n\nMy.cool.Class.getName(); // 'My.cool.Class'\n

Returns

String
className
\n

Ext.Base
view source

implement( )deprecatedstatic

Adds members to class. ...

Adds members to class.

This method has been deprecated since 4.1

Use addMembers instead.

\n\n

Ext.Base
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mixin( name, mixinClass )privatestatic

Used internally by the mixins pre-processor ...

Used internally by the mixins pre-processor

Parameters

name : Object
\n
mixinClass : Object
\n

Ext.Base
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onExtended( fn, scope )chainableprivatestatic

...

Parameters

fn : Object
\n
scope : Object
\n

Ext.Base
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override( members ) : Ext.Basechainabledeprecatedstatic

Override members of this class. ...

Override members of this class. Overridden methods can be invoked via\ncallParent.

\n\n

Ext.define('My.Cat', {\n    constructor: function() {\n        alert(\"I'm a cat!\");\n    }\n});\n\nMy.Cat.override({\n    constructor: function() {\n        alert(\"I'm going to be a cat!\");\n\n        this.callParent(arguments);\n\n        alert(\"Meeeeoooowwww\");\n    }\n});\n\nvar kitty = new My.Cat(); // alerts \"I'm going to be a cat!\"\n                          // alerts \"I'm a cat!\"\n                          // alerts \"Meeeeoooowwww\"\n

\n\n

As of 4.1, direct use of this method is deprecated. Use Ext.define\ninstead:

\n\n

Ext.define('My.CatOverride', {\n    override: 'My.Cat',\n    constructor: function() {\n        alert(\"I'm going to be a cat!\");\n\n        this.callParent(arguments);\n\n        alert(\"Meeeeoooowwww\");\n    }\n});\n

\n\n

The above accomplishes the same result but can be managed by the Ext.Loader\nwhich can properly order the override and its target class and the build process\ncan determine whether the override is needed based on the required state of the\ntarget class (My.Cat).

This method has been deprecated since 4.1.0

Use Ext.define instead

\n\n

Parameters

members : Object
The properties to add to this class. This should be\nspecified as an object literal containing one or more properties.
\n

Returns

Ext.Base
this class
\n

Ext.Base
view source

triggerExtended( )privatestatic

...