/** * The container that holds and manages instances of the {@link Ext.draw.Surface} * in which {@link Ext.draw.sprite.Sprite sprites} are rendered. Draw containers are * used as the foundation for all of the chart classes but may also be created directly * in order to create custom drawings. * * @example * var drawContainer = Ext.create('Ext.draw.Container', { * renderTo: Ext.getBody(), * width:200, * height:200, * sprites: [{ * type: 'circle', * fillStyle: '#79BB3F', * r: 100, * x: 100, * y: 100 * }] * }); * * // Uncomment to trigger a download of the painted circle. * // drawContainer.download({ * // filename: 'Circle', * // url: 'http://svg.sencha.io' // Default server the image data is sent to. * // }); * * In the previous example we created a draw container and configured it with a single * sprite. The *type* of the sprite is {@link Ext.draw.sprite.Circle circle}, so if you * run this code you'll see a green circle. * * You can attach sprite event listeners to the draw container with the help of the * {@link Ext.draw.plugin.SpriteEvents} plugin. * * For more information on sprites, the core elements added to a draw container's * surface, refer to the Ext.draw.sprite.Sprite documentation. * * For more information on surfaces, the interface owned by the draw container used to * manage all sprites, see the Ext.draw.Surface documentation. */Ext.define('Ext.draw.Container', { extend: 'Ext.draw.ContainerBase', alternateClassName: 'Ext.draw.Component', xtype: 'draw', defaultType: 'surface', isDrawContainer: true, requires: [ 'Ext.draw.Surface', 'Ext.draw.engine.Svg', 'Ext.draw.engine.Canvas', 'Ext.draw.gradient.GradientDefinition' ], /** * @cfg {String} [engine="Ext.draw.engine.Canvas"] * Defines the engine (type of surface) used to render draw container contents. * * The render engine is selected automatically depending on the platform used. Priority * is given to the {@link Ext.draw.engine.Canvas} engine due to its performance advantage. * * You may also set the engine config to be `Ext.draw.engine.Svg` if so desired. */ engine: 'Ext.draw.engine.Canvas', /** * @event spritemousemove * Fires when the mouse is moved on a sprite. * @param {Object} sprite * @param {Event} event */ /** * @event spritemouseup * Fires when a mouseup event occurs on a sprite. * @param {Object} sprite * @param {Event} event */ /** * @event spritemousedown * Fires when a mousedown event occurs on a sprite. * @param {Object} sprite * @param {Event} event */ /** * @event spritemouseover * Fires when the mouse enters a sprite. * @param {Object} sprite * @param {Event} event */ /** * @event spritemouseout * Fires when the mouse exits a sprite. * @param {Object} sprite * @param {Event} event */ /** * @event spriteclick * Fires when a click event occurs on a sprite. * @param {Object} sprite * @param {Event} event */ /** * @event spritedblclick * Fires when a double click event occurs on a sprite. * @param {Object} sprite * @param {Event} event */ /** * @event spritetap * Fires when a tap event occurs on a sprite. * @param {Object} sprite * @param {Event} event */ /** * @event bodyresize * Fires when the size of the draw container body changes. * @param {Object} size The object containing 'width' and 'height' of the draw container's body. */ config: { cls: [ Ext.baseCSSPrefix + 'draw-container', Ext.baseCSSPrefix + 'unselectable' ], /** * @cfg {Function} [resizeHandler] * The resize function that can be configured to have a behavior, * e.g. resize draw surfaces based on new draw container dimensions. * The `resizeHandler` function takes a single parameter - * the size object with `width` and `height` properties. * * **Note:** Since resize events trigger {@link #renderFrame} calls automatically, * return `false` from the resize function, if it also calls `renderFrame`, * to prevent double rendering. */ resizeHandler: null, /** * @cfg {Object[]} sprites * Defines a set of sprites to be added to the drawContainer surface. * * For example: * * sprites: [{ * type: 'circle', * fillStyle: '#79BB3F', * r: 100, * x: 100, * y: 100 * }] * */ sprites: null, /** * @cfg {Object[]} gradients * Defines a set of gradients that can be used as color properties * (fillStyle and strokeStyle, but not shadowColor) in sprites. * The gradients array is an array of objects with the following properties: * - **id** - string - The unique name of the gradient. * - **type** - string, optional - The type of the gradient. Available types are: 'linear', * 'radial'. Defaults to 'linear'. * - **angle** - number, optional - The angle of the gradient in degrees. * - **stops** - array - An array of objects with 'color' and 'offset' properties, where * 'offset' is a real number from 0 to 1. * * For example: * * gradients: [{ * id: 'gradientId1', * type: 'linear', * angle: 45, * stops: [{ * offset: 0, * color: 'red' * }, { * offset: 1, * color: 'yellow' * }] * }, { * id: 'gradientId2', * type: 'radial', * stops: [{ * offset: 0, * color: '#555', * }, { * offset: 1, * color: '#ddd', * }] * }] * * Then the sprites can use 'gradientId1' and 'gradientId2' by setting the color attributes * to those ids, for example: * * sprite.setAttributes({ * fillStyle: 'url(#gradientId1)', * strokeStyle: 'url(#gradientId2)' * }); */ gradients: [], /** * @cfg {String} downloadServerUrl * The default URL used by the {@link #download} method. */ downloadServerUrl: undefined, touchAction: { panX: false, panY: false, pinchZoom: false, doubleTapZoom: false }, /** * @private * @cfg {Object} surfaceZIndexes A map of surface type name to zIndex. * The z-indexes to use for the various types of surfaces. */ surfaceZIndexes: { main: 1 } }, /** * @private * @property {String} [defaultDownloadServerUrl="http://svg.sencha.io"] * The default URL used by the {@link #download} method if the {@link #downloadServerUrl} * config wasn't set. * To override this globally, set the `Ext.draw.Container.prototype.defaultDownloadServerUrl`. * * **Note:** Downloading charts via Sencha's http://svg.sencha.io server may expose * your data. This server will be deprecated (turned down) in a future SDK release. Please * implement your own server to provide support for older browsers that do not support file * saving via blob. An example implementation can be seen inside the Charts Package source: * packages/charts/server/node */ defaultDownloadServerUrl: 'http://svg.sencha.io', /** * @property {Array} [supportedFormats=["png", "pdf", "jpeg", "gif"]] * A list of export types supported by the server. * @private */ supportedFormats: ['png', 'pdf', 'jpeg', 'gif'], supportedOptions: { version: Ext.isNumber, data: Ext.isString, format: function(format) { return Ext.Array.indexOf(this.supportedFormats, format) >= 0; }, filename: Ext.isString, width: Ext.isNumber, height: Ext.isNumber, scale: Ext.isNumber, pdf: Ext.isObject, jpeg: Ext.isObject }, initAnimator: function() { this.frameCallbackId = Ext.draw.Animator.addFrameCallback('renderFrame', this); }, applyDownloadServerUrl: function(url) { var defaultUrl = this.defaultDownloadServerUrl; if (!url) { url = defaultUrl; //<debug> // Skip this warning when unit testing. if (!window.jasmine) { Ext.log.warn('Downloading charts via Sencha\'s http://svg.sencha.io server may ' + 'expose your data. This server will be deprecated (turned down) in ' + 'a future SDK release. Please implement your own server to provide ' + 'support for older browsers that do not support file saving via ' + 'blob. An example implementation can be seen inside the Charts ' + 'Package source: packages/charts/server/node.'); } //</debug> } return url; }, applyGradients: function(gradients) { var result = [], i, n, gradient, offset; if (!Ext.isArray(gradients)) { return result; } for (i = 0, n = gradients.length; i < n; i++) { gradient = gradients[i]; if (!Ext.isObject(gradient)) { continue; } // ExtJS only supported linear gradients, so we didn't have to specify their type if (typeof gradient.type !== 'string') { gradient.type = 'linear'; } if (gradient.angle) { gradient.degrees = gradient.angle; delete gradient.angle; } // Convert ExtJS stops object to Touch stops array if (Ext.isObject(gradient.stops)) { gradient.stops = (function(stops) { var result = [], stop; for (offset in stops) { stop = stops[offset]; stop.offset = offset / 100; result.push(stop); } return result; })(gradient.stops); } result.push(gradient); } Ext.draw.gradient.GradientDefinition.add(result); return result; }, applySprites: function(sprites) { var result, surface, sprite, i, ln; // Never update. if (!sprites) { return; } sprites = Ext.Array.from(sprites); result = []; for (i = 0, ln = sprites.length; i < ln; i++) { sprite = sprites[i]; surface = sprite.surface; if (!(surface && surface.isSurface)) { if (Ext.isString(surface)) { surface = this.getSurface(surface); delete sprite.surface; } else { surface = this.getSurface('main'); } } sprite = surface.add(sprite); result.push(sprite); } return result; }, resizeDelay: 500, // in milliseconds resizeTimerId: 0, lastResizeTime: null, /** * @private * @property * Last valid size. */ size: null, /** * Triggers the {@link #resizeHandler} with the size of the draw container * element as the parameter. */ handleResize: function(size, instantly) { // See the following: // Classic: Ext.draw.ContainerBase.reattachToBody // Modern: Ext.draw.ContainerBase.initialize var me = this, el = me.element, resizeHandler = me.getResizeHandler() || me.defaultResizeHandler, resizeDelay = me.resizeDelay, lastResizeTime = me.lastResizeTime, defer, result; if (!el) { return; } size = size || el.getSize(); if (!(size.width && size.height)) { return; } me.size = size; me.stopResizeTimer(); // Only want to defer when multiple resize events happen in quick succession. // That way it doesn't feel luggy during an occasional resize, nor it's too straining // when continuously resizing. defer = !instantly && lastResizeTime && (Ext.Date.now() - lastResizeTime < resizeDelay); if (defer) { me.resizeTimerId = Ext.defer(me.handleResize, resizeDelay, me, [size, true]); return; } me.fireEvent('bodyresize', me, size); Ext.callback(resizeHandler, null, [size], 0, me); if (result !== false) { me.renderFrame(); } me.lastResizeTime = Ext.Date.now(); }, /** * @private */ stopResizeTimer: function() { if (this.resizeTimerId) { Ext.undefer(this.resizeTimerId); this.resizeTimerId = 0; } }, defaultResizeHandler: function(size) { this.getItems().each(function(surface) { surface.setRect([0, 0, size.width, size.height]); }); }, /** * Get a surface by the given id or create one if it doesn't exist. * This will automatically call the {@link #resizeHandler}. Which * means that, if no custom resize handler has been provided, the * surface will be sized to match the container. * If the {@link #method!add} method is used, it is the responsibility * of the user to call the {@link #handleResize} method, to update * the size of all added surfaces. * @param {String} [id="main"] * @param {String} type * @return {Ext.draw.Surface} */ getSurface: function(id, type) { var me = this, surfaces = me.getItems(), oldCount = surfaces.getCount(), zIndexes = me.getSurfaceZIndexes(), surface; id = id || 'main'; type = type || id; surface = me.createSurface(id); if (type in zIndexes) { surface.element.setStyle('zIndex', zIndexes[type]); } if (surfaces.getCount() > oldCount) { // Immediately call resize handler of the draw container, // so that the newly created surface gets a size. me.handleResize(null, true); } return surface; }, createSurface: function(id) { var me = this, surfaces = me.getItems(), surface; id = this.getId() + '-' + (id || 'main'); surface = surfaces.get(id); if (!surface) { surface = me.add({ xclass: me.engine, id: id }); } return surface; }, /** * Render all the surfaces in the container. */ renderFrame: function() { var me = this, surfaces = me.getItems(), i, ln, item; for (i = 0, ln = surfaces.length; i < ln; i++) { item = surfaces.items[i]; if (item.isSurface) { item.renderFrame(); } } }, /** * @private * Returns a slice of the surfaces (items) array of the draw container, * optionally sorting them by zIndex. * Overridden in subclasses. */ getSurfaces: function(sort) { var surfaces = Array.prototype.slice.call(this.items.items), zIndexes = this.getSurfaceZIndexes(), i, j, surface, zIndex; if (sort) { // Sort the surfaces by zIndex using insertion sort. for (j = 1; j < surfaces.length; j++) { surface = surfaces[j]; zIndex = zIndexes[surface.type]; i = j - 1; while (i >= 0 && zIndexes[surfaces[i].type] > zIndex) { surfaces[i + 1] = surfaces[i]; i--; } surfaces[i + 1] = surface; } } return surfaces; }, /** * Produces an image of the chart / drawing. * @param {String} [format] Possible options are 'image' (the method will return an * Image object) and 'stream' (the method will return the image as a byte stream). * If missing, the data URI of the drawing's (or chart's) image will be returned. * Note: for an SVG based drawing/chart in IE/Edge browsers the method will always * return SVG markup instead of a data URI, as 'img' elements won't accept a data * URI anyway in those browsers. * @return {Object} * @return {String} return.data Image element, byte stream or DataURL. * @return {String} return.type The type of the data (e.g. 'png' or 'svg'). */ getImage: function(format) { var size = this.bodyElement.getSize(), surfaces = this.getSurfaces(true), surface = surfaces[0], image, imageElement; if ((Ext.isIE || Ext.isEdge) && surface.isSVG) { // SVG data URLs don't work in IE/Edge as a source for an 'img' element, // so we need to render SVG the usual way. image = { data: surface.toSVG(size, surfaces), type: 'svg-markup' }; } else { image = surface.flatten(size, surfaces); if (format === 'image') { imageElement = new Image(); imageElement.src = image.data; image.data = imageElement; return image; } if (format === 'stream') { image.data = image.data.replace(/^data:image\/[^;]+/, 'data:application/octet-stream'); return image; } } return image; }, /** * Downloads an image or PDF of the chart / drawing or opens it in a separate * browser tab/window if the download can't be triggered. The exact behavior is * platform and browser specific. For more consistent results on mobile devices use * the {@link #preview} method instead. This method doesn't work in IE8. * * Important: The default download mechanism sends image data to `http://svg.sencha.io`, * which is a server operated by Sencha. This can be changed by setting * the {@link #downloadServerUrl} config to the address of another server. * * You can deploy your own server by using the code from the `server` directory * in the Charts package. The server is Node.js based and uses PhantomJS to * generate images and PDFs from received data. * * The warning that the default download server is used can be suppressed * by explicitly setting the value of the {@link #downloadServerUrl} config * to `http://svg.sencha.io`. * * @param {Object} [config] The following config options are supported: * * @param {String} config.url The url to post the data to. Defaults to * the value of the {@link #downloadServerUrl} config. * * @param {String} config.format The format of image to export. See the * {@link #supportedFormats}. Defaults to 'png' on the Sencha IO server. * Note that you can't export to 'svg' format if the {@link Ext.draw.engine.Canvas Canvas} * {@link Ext.draw.Container#engine engine} is used. * * @param {Number} config.width A width to send to the server for * configuring the image width. Defaults to natural image width on * the Sencha IO server. * * @param {Number} config.height A height to send to the server for * configuring the image height. Defaults to natural image height on * the Sencha IO server. * * @param {String} config.filename The filename of the downloaded image. * Defaults to 'chart' on the Sencha IO server. The config.format is used * as a filename extension. * * @param {Number} config.scale The scaling of the downloaded image. * Defaults to 1 on the Sencha IO server. The server will try to determine the natural * size of the image unless the width/height configs have been set. If the * {@link Ext.draw.engine.Canvas Canvas} {@link Ext.draw.Container#engine engine} is * used the natural image size will depend on the value of the window.devicePixelRatio. * For example, for devices with devicePixelRatio of 2 the produced image will be * two times larger than for devices with devicePixelRatio of 1 for the same drawing. * This is done so that the users with devices with HiDPI screens get a downloaded * image that looks as crisp on their device as the original drawing. * If you want image size to be consistent across devices with different device * pixel ratios, you can set the value of this config to 1/devicePixelRatio. * This parameter is ignored by the Sencha IO server if config.format is set to 'svg'. * * @param {Object} config.pdf PDF specific options. * This config is only used if config.format is set to 'pdf'. * The given object should be in either this format: * * { * width: '200px', * height: '300px', * border: '0px' * } * * or this format: * * { * format: 'A4', * orientation: 'portrait', * border: '1cm' * } * * Supported dimension units are: 'mm', 'cm', 'in', 'px'. No unit means 'px'. * Supported formats are: 'A3', 'A4', 'A5', 'Legal', 'Letter', 'Tabloid'. * Orientation ('portrait', 'landscape') is optional and defaults to 'portrait'. * * @param {Object} config.jpeg JPEG specific options. * This config is only used if config.format is set to 'jpeg'. * The given object should be in this format: * * { * quality: 80 * } * * Where quality is an integer between 0 and 100. * * @return {Boolean} True if request was successfully sent to the server. */ download: function(config) { var me = this, inputs = [], markup, name, value; if (Ext.isIE8) { return false; } config = config || {}; config.version = 2; if (!config.data) { config.data = me.getImage().data; } for (name in config) { if (config.hasOwnProperty(name)) { value = config[name]; if (name in me.supportedOptions) { if (me.supportedOptions[name].call(me, value)) { inputs.push({ tag: 'input', type: 'hidden', name: name, value: Ext.String.htmlEncode( Ext.isObject(value) ? Ext.JSON.encode(value) : value ) }); } //<debug> else { Ext.log.error('Invalid value for image download option "' + name + '": ' + value); } //</debug> } //<debug> else { Ext.log.error('Invalid image download option: "' + name + '"'); } //</debug> } } markup = Ext.dom.Helper.markup({ tag: 'html', children: [ { tag: 'head' }, { tag: 'body', children: [ { tag: 'form', method: 'POST', action: config.url || me.getDownloadServerUrl(), children: inputs }, { tag: 'script', type: 'text/javascript', children: 'document.getElementsByTagName("form")[0].submit();' } ] } ] }); window.open('', 'ImageDownload_' + Date.now()).document.write(markup); }, /** * @method preview * Displays an image of a Ext.draw.Container on screen. * On mobile devices this lets users tap-and-hold to bring up the menu * with image saving options. * Notes: * - some browsers won't save the preview image if it's SVG based * (i.e. generated from a draw container that uses 'Ext.draw.engine.Svg' engine); * - some platforms may not have the means of viewing successfully saved SVG images; * - this method does not work on IE8. */ doDestroy: function() { var me = this, callbackId = me.frameCallbackId; if (callbackId) { Ext.draw.Animator.removeFrameCallback(callbackId); } me.stopResizeTimer(); me.callParent(); } }, function() { if (location.search.match('svg')) { Ext.draw.Container.prototype.engine = 'Ext.draw.engine.Svg'; } else if ((Ext.os.is.BlackBerry && Ext.os.version.getMajor() === 10) || (Ext.browser.is.AndroidStock4 && (Ext.os.version.getMinor() === 1 || Ext.os.version.getMinor() === 2 || Ext.os.version.getMinor() === 3))) { // http://code.google.com/p/android/issues/detail?id=37529 Ext.draw.Container.prototype.engine = 'Ext.draw.engine.Svg'; }});