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Description

Simple HTML5 canvas based component used for scaling images. Returns base64 encoded data of edited file.

Props

  • width - int - Width in pixels of the canvas. (Defaults to width of container)
  • hegiht - int - Height in pixels of the. (Defaults to hieght of container)
  • maxScale - int - Maxium size the image can be scaled up to. (Defaults to 3)
  • scaleStep - float - How granular to scale the image (Defaults to 0.5)
  • src - string - URL/Base64 source for the image being scaled.
  • backgroundColor - string - Color of the canvas background visible when the image is scaled down. (Defaults to #FFFFFF)
  • onScaleApply - method - Method that is run once clicking the apply button, base64 encoded value of the canvas content returned as parameter
  • onCancel - method - Method that runs once the cancel button has been clicked.
  • displayResolution - bool - Show the scaled resolution in pixels at top right. (Defaults to true)
  • applyLabel - string - Label of the apply button in bottom right. (Defaults to Apply)
  • cancelLabel - string - Label of the cancel button in bottom right. (Defaults to Cancel)
  • drawGrid - bool - Whether or not to show gridlines over the image.
  • scaleSizes - bool - Shows predefined size buttons next to Cance/Apply buttons (Defaults 0.5,1.0,2.0)

Examples

Example Gif

Grid

<ReactImageScaler src={this.state.src} drawGrid={true} width={1024} height={768}//> Example 2

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  • JavaScript 84.5%
  • SCSS 15.5%