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[Dotgnu-pnet-commits] CVS: pnetlib/System.Drawing.Postscript PostscriptG
|
From: |
Rhys Weatherley <address@hidden> |
|
Subject: |
[Dotgnu-pnet-commits] CVS: pnetlib/System.Drawing.Postscript PostscriptGraphics.cs, 1.1, 1.2 PostscriptPrintSession.cs, 1.1, 1.2 |
|
Date: |
Sat, 19 Jul 2003 06:17:12 -0400 |
Update of /cvsroot/dotgnu-pnet/pnetlib/System.Drawing.Postscript
In directory subversions:/tmp/cvs-serv2799/System.Drawing.Postscript
Modified Files:
PostscriptGraphics.cs PostscriptPrintSession.cs
Log Message:
Put some basic infrastructure in place to output page headers
and footers to "output.ps".
Index: PostscriptGraphics.cs
===================================================================
RCS file:
/cvsroot/dotgnu-pnet/pnetlib/System.Drawing.Postscript/PostscriptGraphics.cs,v
retrieving revision 1.1
retrieving revision 1.2
diff -C2 -r1.1 -r1.2
*** PostscriptGraphics.cs 18 Jul 2003 05:17:56 -0000 1.1
--- PostscriptGraphics.cs 19 Jul 2003 10:17:10 -0000 1.2
***************
*** 23,26 ****
--- 23,27 ----
{
+ using System.IO;
using System.Drawing;
using System.Drawing.Text;
***************
*** 29,34 ****
internal class PostscriptGraphics : ToolkitGraphicsBase
{
// Constructor.
! public PostscriptGraphics(IToolkit toolkit) : base(toolkit) {}
// Get or set the graphics object's properties.
--- 30,45 ----
internal class PostscriptGraphics : ToolkitGraphicsBase
{
+ // Internal state.
+ private TextWriter writer;
+ private PostscriptPrintSession session;
+
// Constructor.
! public PostscriptGraphics(IToolkit toolkit, TextWriter writer,
!
PostscriptPrintSession session)
! : base(toolkit)
! {
! this.writer = writer;
! this.session = session;
! }
// Get or set the graphics object's properties.
Index: PostscriptPrintSession.cs
===================================================================
RCS file:
/cvsroot/dotgnu-pnet/pnetlib/System.Drawing.Postscript/PostscriptPrintSession.cs,v
retrieving revision 1.1
retrieving revision 1.2
diff -C2 -r1.1 -r1.2
*** PostscriptPrintSession.cs 18 Jul 2003 05:17:56 -0000 1.1
--- PostscriptPrintSession.cs 19 Jul 2003 10:17:10 -0000 1.2
***************
*** 23,26 ****
--- 23,28 ----
{
+ using System.IO;
+ using System.Text;
using System.Drawing.Printing;
***************
*** 30,33 ****
--- 32,40 ----
private String printerName;
private PrintDocument document;
+ private TextWriter writer;
+ private Encoding encoding;
+ private IToolkit toolkit;
+ private bool onPage;
+ private int pageNum;
// Constructor.
***************
*** 36,39 ****
--- 43,51 ----
this.printerName = printerName;
this.document = document;
+ this.writer = null;
+ this.encoding = Encoding.Default;
+ this.toolkit = new PostscriptToolkit();
+ this.onPage = false;
+ this.pageNum = 1;
}
***************
*** 54,58 ****
public void StartPrint(PrintEventArgs e)
{
! // TODO
}
--- 66,103 ----
public void StartPrint(PrintEventArgs e)
{
! // TODO: other output types, especially
pipe-to-lpr.
! writer = new StreamWriter("output.ps");
!
! // Write the Postscript header to the stream.
! writer.WriteLine("%!PS-Adobe-3.0");
! // TODO: bounding box
! writer.WriteLine
! ("%%Creator: Portable.NET
System.Drawing.Postscript");
! writer.WriteLine("%%DocumentData: Clean8Bit");
! writer.WriteLine("%%DocumentPaperSizes: {0}",
!
document.DefaultPageSettings.PaperSize.Kind.ToString());
! if(document.DefaultPageSettings.Landscape)
! {
! writer.WriteLine("%%Orientation:
Landscape");
! }
! else
! {
! writer.WriteLine("%%Orientation:
Portrait");
! }
! writer.WriteLine("%%Pages: (atend)");
! writer.WriteLine("%%PageOrder: Ascend");
! if(document.DocumentName != "document")
! {
! writer.WriteLine("%%Title: {0}",
document.DocumentName);
! }
! writer.WriteLine("%%EndComments");
!
! // Write the prolog definitions.
! writer.WriteLine("%%BeginProlog");
! foreach(String line in prolog)
! {
! writer.WriteLine(line);
! }
! writer.WriteLine("%%EndProlog");
}
***************
*** 60,64 ****
public void EndPrint(PrintEventArgs e)
{
! // TODO
}
--- 105,119 ----
public void EndPrint(PrintEventArgs e)
{
! // Finalize the last page.
! EndPage(null);
!
! // Output the Postscript trailer.
! writer.WriteLine("%%Trailer");
! writer.WriteLine("%%Pages: {0}", pageNum - 1);
! writer.WriteLine("%%EOF");
!
! // Close the output stream.
! writer.Close();
! writer = null;
}
***************
*** 66,71 ****
public Graphics StartPage(PrintPageEventArgs e)
{
! // TODO
! return null;
}
--- 121,147 ----
public Graphics StartPage(PrintPageEventArgs e)
{
! // Make sure that the previous page was closed.
! EndPage(e);
!
! // Output the page header information.
! writer.WriteLine("%%Page: {0} {0}", pageNum,
pageNum);
! writer.WriteLine("%%BeginPageSetup");
!
! // Save the current VM state, so that we can
! // discard temporary definitions at the end
! // of the page.
! writer.WriteLine("/pagelevel save def");
!
! // TODO: apply a rotation for landscape mode.
!
! // Mark the end of the page header information.
! writer.WriteLine("%%EndPageSetup");
!
! // We are now on a page.
! onPage = true;
!
! // Create a "Graphics" object for this page and
return it.
! return ToolkitManager.CreateGraphics
! (new PostscriptGraphics(toolkit,
writer, this));
}
***************
*** 73,77 ****
public void EndPage(PrintPageEventArgs e)
{
! // TODO
}
--- 149,166 ----
public void EndPage(PrintPageEventArgs e)
{
! if(onPage)
! {
! // Restore the VM state at the start of
the page.
! writer.WriteLine("pagelevel restore");
!
! // Show the page.
! writer.WriteLine("showpage");
!
! // We are no longer processing a page.
! onPage = false;
!
! // Increase the page count.
! ++pageNum;
! }
}
***************
*** 97,100 ****
--- 186,252 ----
}
}
+
+ // Write a string value to the PostScript stream while escaping
+ // characters that may cause problems in the printer otherwise.
+ internal void Write(String str)
+ {
+ // See if we can short-cut the conversion
process
+ // for simple strings with no funky characters.
+ int posn = 0;
+ char ch;
+ while(posn < str.Length)
+ {
+ ch = str[posn];
+ if(ch < 0x20 || ch > 0x7E)
+ {
+ break;
+ }
+ else if(ch == '(' || ch == ')' || ch ==
'\\')
+ {
+ break;
+ }
+ ++posn;
+ }
+ if(posn >= str.Length)
+ {
+ writer.Write('(');
+ writer.Write(str);
+ writer.Write(')');
+ writer.Write(' ');
+ return;
+ }
+
+ // Convert the string into the final encoding
and write it.
+ byte[] bytes = encoding.GetBytes(str);
+ writer.Write('(');
+ foreach(byte b in bytes)
+ {
+ if(b < 0x20 || b > 0x7E)
+ {
+ writer.Write('\\');
+ writer.Write((char)('0' + ((b
>> 6) & 0x03)));
+ writer.Write((char)('0' + ((b
>> 3) & 0x07)));
+ writer.Write((char)('0' + (b &
0x07)));
+ }
+ else if(b == ((int)'(') ||
+ b == ((int)')') ||
+ b == ((int)'\\'))
+ {
+ writer.Write('\\');
+ writer.Write((char)b);
+ }
+ else
+ {
+ writer.Write((char)b);
+ }
+ }
+ writer.Write(')');
+ writer.Write(' ');
+ }
+
+ // The PostScript prolog to add to every output stream.
+ private static readonly String[] prolog = {
+ // TODO
+ };
}; // class PostscriptPrintSession
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