net.codecrete.qrbill.canvas

Class AbstractCanvas

java.lang.Object

net.codecrete.qrbill.canvas.AbstractCanvas

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, Canvas

Direct Known Subclasses:

PDFCanvas, PNGCanvas, SVGCanvas

public abstract class AbstractCanvas
extends java.lang.Object
implements Canvas

Abstract base class for simplified implementation of Canvas classes.

Field Summary

Fields

Modifier and Type	Field and Description
protected static double	MM_TO_PT

Constructor Summary

Constructors

Constructor and Description
AbstractCanvas()

Method Summary

Modifier and Type	Method and Description
int	putMultilineText(java.lang.String text, double x, double y, int fontSize, double maxWidth, double leading) Adds several lines of text to the graphics.
void	putTextLines(java.lang.String[] lines, double x, double y, int fontSize, double leading) Adds several lines of text to the graphics.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.codecrete.qrbill.canvas.Canvas

addRectangle, fillPath, getResult, lineTo, moveTo, putText, setTransformation, setupPage, startPath, strokePath

Methods inherited from interface java.io.Closeable

close

Field Detail

MM_TO_PT

protected static final double MM_TO_PT

See Also:

Constant Field Values

Constructor Detail

AbstractCanvas

public AbstractCanvas()

Method Detail

putMultilineText

public int putMultilineText(java.lang.String text,
                            double x,
                            double y,
                            int fontSize,
                            double maxWidth,
                            double leading)
                     throws java.io.IOException

Description copied from interface: Canvas

Adds several lines of text to the graphics.

The specified text is automatically broken into several lines if a text line would exceed the specified maximum length of a text line. Newlines can be used to force a line break.

The text position refers to the left most point on the baseline of the first text line. Additional lines then follow below.

Specified by:

putMultilineText in interface Canvas

Parameters:

text - the text

x - x position of the text's start (in mm)

y - y position of the text's top (in mm)

fontSize - the font size (in pt)

maxWidth - maximum length of text line / width of text block (in mm)

leading - additional vertical space between text lines (in mm)

Returns:

the number of text lines that were added

Throws:

java.io.IOException - thrown if the graphics cannot be generated

putTextLines

public void putTextLines(java.lang.String[] lines,
                         double x,
                         double y,
                         int fontSize,
                         double leading)
                  throws java.io.IOException

Description copied from interface: Canvas

Adds several lines of text to the graphics.

The text position refers to the left most point on the baseline of the first text line. Additional lines then follow below.

Specified by:

putTextLines in interface Canvas

Parameters:

lines - the text lines

x - x position of the text's start (in mm)

y - y position of the text's top (in mm)

fontSize - the font size (in pt)

leading - additional vertical space between text lines (in mm)

Throws:

java.io.IOException - thrown if the graphics cannot be generated