java.lang.Object
- net.codecrete.qrbill.generator.QRBill

```
public class QRBill
extends java.lang.Object
```
Generates Swiss QR bill payment part.
Can also validate the bill data and encode and decode the text embedded in the QR code.

Field Summary

Fields
Modifier and Type	Field	Description
`static double`	`A4_PORTRAIT_HEIGHT`	The height of an A4 sheet in portrait orientation, in mm
`static double`	`A4_PORTRAIT_WIDTH`	The width of an A4 sheet in portrait orientation, in mm
`static double`	`QR_BILL_HEIGHT`	The height of a QR bill (payment part and receipt), in mm
`static double`	`QR_BILL_WIDTH`	The width of a QR bill (payment part and receipt), in mm
`static double`	`QR_BILL_WITH_HORI_LINE_HEIGHT`	The height of a QR bill with horizontal separator line (payment part and receipt plus space for line and scissors), in mm
`static double`	`QR_BILL_WITH_HORI_LINE_WIDTH`	The width of a QR bill with horizontal separator line (payment part and receipt plus space for line and scissors), in mm
`static double`	`QR_CODE_HEIGHT`	The height of the QR code, in mm
`static double`	`QR_CODE_WIDTH`	The width of the QR code, in mm

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static Bill`	`decodeQrCodeText(java.lang.String text)`	Decodes the text embedded in the QR code and fills it into a `Bill` data structure.
`static void`	`draw(Bill bill, Canvas canvas)`	Draws the QR bill (payment part and receipt) or QR code for the specified bill data onto the specified canvas.
`static void`	`drawSeparators(SeparatorType separatorType, boolean withHorizontalLine, Canvas canvas)`	Draws the separator line(s) to the specified canvas.
`static java.lang.String`	`encodeQrCodeText(Bill bill)`	Encodes the text embedded in the QR code from the specified bill data.
`static byte[]`	`generate(Bill bill)`	Generates a QR bill (payment part and receipt) or QR code as an SVG image or PDF document.
`static ValidationResult`	`validate(Bill bill)`	Validates and cleans the bill data.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - A4_PORTRAIT_WIDTH
```
public static final double A4_PORTRAIT_WIDTH
```
    The width of an A4 sheet in portrait orientation, in mm
    
    See Also:
    
    Constant Field Values
  - A4_PORTRAIT_HEIGHT
```
public static final double A4_PORTRAIT_HEIGHT
```
    The height of an A4 sheet in portrait orientation, in mm
    
    See Also:
    
    Constant Field Values
  - QR_BILL_WIDTH
```
public static final double QR_BILL_WIDTH
```
    The width of a QR bill (payment part and receipt), in mm
    
    See Also:
    
    Constant Field Values
  - QR_BILL_HEIGHT
```
public static final double QR_BILL_HEIGHT
```
    The height of a QR bill (payment part and receipt), in mm
    
    See Also:
    
    Constant Field Values
  - QR_BILL_WITH_HORI_LINE_WIDTH
```
public static final double QR_BILL_WITH_HORI_LINE_WIDTH
```
    The width of a QR bill with horizontal separator line (payment part and receipt plus space for line and scissors), in mm
    
    See Also:
    
    Constant Field Values
  - QR_BILL_WITH_HORI_LINE_HEIGHT
```
public static final double QR_BILL_WITH_HORI_LINE_HEIGHT
```
    The height of a QR bill with horizontal separator line (payment part and receipt plus space for line and scissors), in mm
    
    See Also:
    
    Constant Field Values
  - QR_CODE_WIDTH
```
public static final double QR_CODE_WIDTH
```
    The width of the QR code, in mm
    
    See Also:
    
    Constant Field Values
  - QR_CODE_HEIGHT
```
public static final double QR_CODE_HEIGHT
```
    The height of the QR code, in mm
    
    See Also:
    
    Constant Field Values
- Method Detail
  - validate
```
public static ValidationResult validate(Bill bill)
```
    Validates and cleans the bill data.
    The validation result contains the error and warning messages (if any) and the cleaned bill data.
    
    For details about the validation result, see Bill data validation
    
    Parameters:
    
    bill - bill data
    
    Returns:
    
    validation result
  - generate
```
public static byte[] generate(Bill bill)
```
    Generates a QR bill (payment part and receipt) or QR code as an SVG image or PDF document.
    If the bill data is not valid, a QRBillValidationError is thrown, which contains the validation result. For details about the validation result, see Bill data validation
    
    The graphics format is specified with bill.getFormat().setGraphicsFormat(...). This method only supports the generation of SVG images and PDF files. For other graphics formats (in particular PNG), use draw(net.codecrete.qrbill.generator.Bill, net.codecrete.qrbill.canvas.Canvas)
    
    Parameters:
    
    bill - the bill data
    
    Returns:
    
    the generated QR bill (as a byte array encoded in the specified graphics format)
    
    Throws:
    
    QRBillValidationError - thrown if the bill data does not validate
    
    See Also:
    
    draw(net.codecrete.qrbill.generator.Bill, net.codecrete.qrbill.canvas.Canvas)
  - draw
```
public static void draw(Bill bill,
                        Canvas canvas)
```
    Draws the QR bill (payment part and receipt) or QR code for the specified bill data onto the specified canvas.
    The QR bill or code are drawn at position (0, 0) extending to the top and to the right. Typically, the position (0, 0) is the bottom left corner of the canvas.
    
    This methods ignores the formatting properties bill.getFormat().getFontFamily() and bill.getFormat().getGraphicsFormat(). They can be set when the canvas instance passed to this method is created.
    
    If the bill data does not validate, a QRBillValidationError is thrown, which contains the validation result. For details about the validation result, see Bill data validation
    
    The canvas will be initialized with Canvas#setupPage and it will be closed before returning the generated QR bill
    
    Parameters:
    
    bill - the bill data
    
    canvas - the canvas to draw to
    
    Throws:
    
    QRBillValidationError - thrown if the bill data does not validate
  - drawSeparators
```
public static void drawSeparators(SeparatorType separatorType,
                                  boolean withHorizontalLine,
                                  Canvas canvas)
```
    Draws the separator line(s) to the specified canvas.
    The separator lines are drawn assuming that the QR bill starts at position (0, 0) and extends the top and right. So position (0, 0) should be in the bottom left corner.
    
    This method allows to add separator lines to an existing QR bill, e.g. on to an archived QR bill document.
    
    Parameters:
    
    separatorType - type of separator lines
    
    withHorizontalLine - true if both the horizontal or vertical separator should be drawn, false for the vertical separator only
    
    canvas - the canvas to draw to
  - encodeQrCodeText
```
public static java.lang.String encodeQrCodeText(Bill bill)
```
    Encodes the text embedded in the QR code from the specified bill data.
    The specified bill data is first validated and cleaned.
    
    If the bill data does not validate, a QRBillValidationError is thrown, which contains the validation result. For details about the validation result, see Bill data validation
    
    Parameters:
    
    bill - the bill data to encode
    
    Returns:
    
    the QR code text
    
    Throws:
    
    QRBillValidationError - thrown if the bill data does not validate
  - decodeQrCodeText
```
public static Bill decodeQrCodeText(java.lang.String text)
```
    Decodes the text embedded in the QR code and fills it into a Bill data structure.
    A subset of the validations related to embedded QR code text is run. It the validation fails, a QRBillValidationError is thrown, which contains the validation result. See the error messages marked with a dagger in Bill data validation.
    
    Parameters:
    
    text - the text to decode
    
    Returns:
    
    the decoded bill data
    
    Throws:
    
    QRBillValidationError - thrown if the bill data does not validate

Class QRBill

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

A4_PORTRAIT_WIDTH

A4_PORTRAIT_HEIGHT

QR_BILL_WIDTH

QR_BILL_HEIGHT

QR_BILL_WITH_HORI_LINE_WIDTH

QR_BILL_WITH_HORI_LINE_HEIGHT

QR_CODE_WIDTH

QR_CODE_HEIGHT

Method Detail

validate

generate

draw

drawSeparators

encodeQrCodeText

decodeQrCodeText