swing.addon.util
Class HardcopyWriter
java.lang.Object
|
+--java.io.Writer
|
+--swing.addon.util.HardcopyWriter
- public class HardcopyWriter
- extends java.io.Writer
A character output stream that sends output to a printer.
Inner Class Summary |
static class |
HardcopyWriter.PrintCanceledException
This is the exception class that the HardcopyWriter constructor
throws when the user clicks "Cancel" in the print dialog box. |
Fields inherited from class java.io.Writer |
lock |
Constructor Summary |
HardcopyWriter(java.awt.Frame frame,
java.lang.String jobname,
int fontsize,
double leftmargin,
double rightmargin,
double topmargin,
double bottommargin,
int tabwidth)
The constructor for this class has a bunch of arguments:
The frame argument is required for all printing in Java.
|
Method Summary |
void |
close()
This is the close() method that all Writer subclasses must implement.
|
void |
flush()
This is the flush() method that all Writer subclasses must implement.
|
int |
getCharactersPerLine()
Return the number of columns of characters that fit on the page |
int |
getLinesPerPage()
Return the number of lines that fit on a page |
protected void |
newline()
This internal method begins a new line |
protected void |
newpage()
This internal method begins a new page and prints the header. |
void |
pageBreak()
End the current page. |
void |
setFontStyle(int style)
Set the font style. |
void |
write(char[] buffer,
int index,
int len)
This is the write() method of the stream. |
Methods inherited from class java.io.Writer |
write, write, write, write |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
job
protected java.awt.PrintJob job
page
protected java.awt.Graphics page
jobname
protected java.lang.String jobname
fontsize
protected int fontsize
time
protected java.lang.String time
pagesize
protected java.awt.Dimension pagesize
pagedpi
protected int pagedpi
font
protected java.awt.Font font
headerfont
protected java.awt.Font headerfont
metrics
protected java.awt.FontMetrics metrics
headermetrics
protected java.awt.FontMetrics headermetrics
x0
protected int x0
y0
protected int y0
width
protected int width
height
protected int height
headery
protected int headery
charwidth
protected int charwidth
lineheight
protected int lineheight
lineascent
protected int lineascent
chars_per_line
protected int chars_per_line
lines_per_page
protected int lines_per_page
charnum
protected int charnum
linenum
protected int linenum
pagenum
protected int pagenum
printprops
protected static java.util.Properties printprops
tabwidth
protected int tabwidth
HardcopyWriter
public HardcopyWriter(java.awt.Frame frame,
java.lang.String jobname,
int fontsize,
double leftmargin,
double rightmargin,
double topmargin,
double bottommargin,
int tabwidth)
throws HardcopyWriter.PrintCanceledException
- The constructor for this class has a bunch of arguments:
The frame argument is required for all printing in Java.
The jobname appears left justified at the top of each printed page.
The font size is specified in points, as on-screen font sizes are.
The margins are specified in inches (or fractions of inches).
close
public void close()
- This is the close() method that all Writer subclasses must implement.
Print the pending page (if any) and terminate the PrintJob.
- Overrides:
close
in class java.io.Writer
flush
public void flush()
- This is the flush() method that all Writer subclasses must implement.
There is no way to flush a PrintJob without prematurely printing the
page, so we don't do anything.
- Overrides:
flush
in class java.io.Writer
getCharactersPerLine
public int getCharactersPerLine()
- Return the number of columns of characters that fit on the page
getLinesPerPage
public int getLinesPerPage()
- Return the number of lines that fit on a page
newline
protected void newline()
- This internal method begins a new line
newpage
protected void newpage()
- This internal method begins a new page and prints the header.
pageBreak
public void pageBreak()
- End the current page. Subsequent output will be on a new page.
setFontStyle
public void setFontStyle(int style)
- Set the font style. The argument should be one of the font style
constants defined by the java.awt.Font class. All subsequent output
will be in that style. This method relies on all styles of the
Monospaced font having the same metrics.
write
public void write(char[] buffer,
int index,
int len)
- This is the write() method of the stream. All Writer subclasses
implement this. All other versions of write() are variants of this one
- Overrides:
write
in class java.io.Writer