Manual - Drawing

Introduction

This class allows you to draw a barcode on an image resource. Of course, you can use another class to draw the barcode.

Methods

BCGDrawing's Methods

• __constructor__(BCGBarcode barcode, BCGColor color) — Construct the drawing
• GetImage() — Gets the image resource
• SetImage(Bitmap image) — Sets the image resource
• GetBarcode() — Gets the barcode associated
• SetBarcode(BCGBarcode barcode) — Sets the barcode to use
• GetDpi() — Gets the DPI for supported filetype
• SetDpi(float dpi) — Sets the DPI for supported filetype
• GetRotationAngle() — Gets the rotation angle in degree
• SetRotationAngle(float degree) — Sets the rotation angle in degree
• Draw() — Draws the barcode on the image resource
• DrawException(Exception exception) — Draws the exception on the image resource
• FinishAsync(ImageFormat imageStyle, string fileName) — Finishes the drawing by saving it or displaying it
• Destroy() — Destroys the memory associated with the image

Code Example

// To get an example on how to use this class, check barcode classes.

Method explanations

• __constructor__(BCGBarcode barcode, BCGColor color) — Construct the drawing
  Description

  Creates the class. The first argument must be the barcode of type BCGBarcode.
  The second argument is the background color of the drawing. This must be a BCGColor object.
  These two arguments are optional.
• GetImage() — Gets the image resource
  Description

  Gets the image resource to make other operations.
  Returns

  resource - PHP image
• SetImage(Bitmap image) — Sets the image resource
  Description

  Sets the image resource into the class. This image will be used instead of creating a new one. You must have the correct size of the image depending on the size returned by the GetDimension() method.
• GetBarcode() — Gets the barcode associated
  Description

  Gets the barcode associated.
  Returns

  BCGBarcode
• SetBarcode(BCGBarcode barcode) — Sets the barcode to use
  Description

  Sets the barcode. The class must be a %class.barcode% object.
• GetDpi() — Gets the DPI for supported filetype
  Description

  Gets the DPI specified for the image. The value can also be null. This means the image will be written without any DPI attribute.
  Returns

  int - DPI or null
• SetDpi(float dpi) — Sets the DPI for supported filetype
  Description

  Sets the DPI for the image. If you don't specify any DPI for the image, a value null will be used. Using a value NULL improves the performance when generating the image. The resulting image will be 72DPI if you don't specify any DPI.
  Only PNG and JPG filetypes can support the DPI setting.
• GetRotationAngle() — Gets the rotation angle in degree
  Description

  Gets the rotation angle for the image in degrees. (clockwise)
  Returns

  int - value between 0 and 360
• SetRotationAngle(float degree) — Sets the rotation angle in degree
  Description

  Sets the rotation angle for the image in degrees. (clockwise)
  Note that your server may not support the imagerotate() function.
• Draw() — Draws the barcode on the image resource
  Description

  Draws the barcode on the image resource. If you didn't specify any image with the SetImage() method, a new image will be created.
• DrawException(Exception exception) — Draws the exception on the image resource
  Description

  Draws the exception passed in on the image resource.
• FinishAsync(ImageFormat imageStyle, string fileName) — Finishes the drawing by saving it or displaying it
  Description

  Writes the image in the specified file or to the screen if the file is not used.
  The first argument imageStyle can be anything from BCGDrawing.ImageFormat. The most common are:
  - BCGDrawing.ImageFormat.Png : will draw in PNG format
  - BCGDrawing.ImageFormat.Jpeg : will draw in JPG format
  - BCGDrawing.ImageFormat.Gif : will draw in GIF format
  - BCGDrawing.ImageFormat.Wbmp : will draw in WBMP format
  The second argument is the path for the file if you want to save the image.
• Destroy() — Destroys the memory associated with the image
  Description

  This method is automatically called with PHP5. You have to call this method with PHP4 or the image will be destroyed at the end of the script.