Examples of com.gloopics.g3viewer.client.canvas.Canvas

com.gloopics.g3viewer.client.canvas.Canvas

hatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html" >HTML5 canvas, with additional methods to decode from and encode to binary formats (such as PNG and JPEG), represented by Blobs. A Gears Canvas is not yet a complete implementation of the HTML5 canvas specification, and there are two significant differences:

A Gears Canvas is off-screen, in that creating a Canvas object doesn't directly paint any pixels on the screen. Furthermore, for technical reasons, a Gears Canvas is not a DOM Element. On the other hand, you can create a Gears Canvas in a Worker.
A Gears Canvas does not implement getContext, and in particular does not provide a 2D context.

Permission

This API requires user permission. If you would like to customize the default dialog, you can explicitly call {@link com.google.gwt.gears.client.Factory#getPermission()}.

  }


  @Override
  public void onSuccess() {
    // resize file
    Canvas upThumb = com.gloopics.g3viewer.client.canvas.Factory.getInstance().createCanvas();
    upThumb.decode(m_Blob);
    
    float imageWidth = (float)upThumb.getWidth();
    float imageHeight = (float)upThumb.getHeight();
    
    float widthRatio = imageWidth/((float)m_ResizeOptions.getMaxWidth());
    float heightRatio = imageHeight/((float)m_ResizeOptions.getMaxHeight());
    
    if (widthRatio > heightRatio){
      if (widthRatio > 1) {
        upThumb.resize(m_ResizeOptions.getMaxWidth(), (int)(imageHeight / widthRatio) );
        m_UploadFile.uploadBlob(upThumb.encode());
        return;
      }
      m_UploadFile.uploadBlob(m_Blob);
    }
    else
    {
      if (heightRatio > 1){
        upThumb.resize((int)(imageWidth / heightRatio), m_ResizeOptions.getMaxHeight());
        m_UploadFile.uploadBlob(upThumb.encode());
        return;
      }
      m_UploadFile.uploadBlob(m_Blob);
    }
  }

Examples of com.gloopics.g3viewer.client.canvas.Canvas

Related Classes of com.gloopics.g3viewer.client.canvas.Canvas