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Experimental Support for CUPS Printing, not working as of now.

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This commit is contained in:
unknown 2011-07-12 12:30:48 +05:30
parent 59909a5ee7
commit 0eb5c7d939
8 changed files with 108 additions and 41 deletions
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2
Tanshu.Accounts.PointOfSale/App.config
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@ -1,7 +1,7 @@
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<connectionStrings>
<add name="FluentCon" connectionString="Server=sovereign;Initial Catalog=Pets;User ID=sa;Password=123456" />
<add name="FluentCon" connectionString="Server=.;Initial Catalog=Pets;User ID=sa;Password=123456" />
</connectionStrings>
<appSettings>
<add key ="Location" value ="Office"/>

4
Tanshu.Accounts.PointOfSale/Controllers/BillController.cs
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@ -456,13 +456,15 @@ namespace Tanshu.Accounts.PointOfSale
_saleForm.ClearBill(_bill);
}
public void FormLoad()
public SaleFormState FormLoad()
{
ClearBill();
if (_editVoucherID.HasValue)
{
LoadBill(_editVoucherID.Value);
return SaleFormState.Billing;
}
return SaleFormState.Waiting;
}
internal void SettleBill()

8
Tanshu.Accounts.Print/PlatformPrinter.cs Normal file
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@ -0,0 +1,8 @@
namespace Tanshu.Accounts.Print
{
// Cut Code for the printer Alt-29, Alt-86, Alt-49
internal abstract class PlatformPrinter
{
internal abstract bool Print(string printerName, string documentName, string printingText);
}
}

47
Tanshu.Accounts.Print/PrinterLinux.cs Normal file
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@ -0,0 +1,47 @@
using System;
using System.Runtime.InteropServices;
namespace Tanshu.Accounts.Print
{
internal class PrinterLinux : PlatformPrinter
{
#region API Declarations
// ReSharper disable InconsistentNaming
[DllImport("libcups", CharSet = CharSet.Ansi)]
static extern int cupsPrintFile(string printer, string filename, string title, int num_options, IntPtr options);
// int cupsPrintFile (const char *name, const char *filename, const char *title, int num_options, cups_option_t *options);
[DllImport("libcups", CharSet = CharSet.Ansi)]
static extern int cupsCreateJob(string http, string name, string title, int num_options, IntPtr options);
// int cupsCreateJob (http_t *http, const char *name, const char *title, int num_options, cups_option_t *options);
[DllImport("libcups", CharSet = CharSet.Ansi)]
static extern int cupsStartDocument(string http, string name, int job_id, string docname, string format, int last_document);
// http_status_t cupsStartDocument (http_t *http, const char *name, int job_id, const char *docname, const char *format, int last_document);
[DllImport("libcups", CharSet = CharSet.Ansi)]
static extern int cupsWriteRequestData(string http, string buffer, int length);
// http_status_t cupsWriteRequestData (http_t *http, const char *buffer, size_t length);
[DllImport("libcups", CharSet = CharSet.Ansi)]
static extern int cupsFinishDocument(string http, string name);
// ipp_status_t cupsFinishDocument (http_t *http, const char *name);
// ReSharper restore InconsistentNaming
#endregion
internal override bool Print(string printerName, string documentName, string printingText)
{
var cupsOption = new IntPtr(0);
const string CUPS_HTTP_DEFAULT = "CUPS_HTTP_DEFAULT";
var jobId = cupsCreateJob(CUPS_HTTP_DEFAULT, printerName, documentName, 0, cupsOption);
if (jobId > 0)
{
const string format = "CUPS_FORMAT_TEXT";
cupsStartDocument(CUPS_HTTP_DEFAULT, printerName, jobId, documentName, format, 1);
cupsWriteRequestData(CUPS_HTTP_DEFAULT, printingText, printingText.Length);
cupsFinishDocument(CUPS_HTTP_DEFAULT, printerName);
}
return jobId > 0;
}
}
}

37
Tanshu.Accounts.Print/RawPrinterHelper.cs → Tanshu.Accounts.Print/PrinterWindows.cs
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@ -1,12 +1,9 @@
using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Collections.Generic;
using System.Text;
namespace Tanshu.Accounts.Print
{
internal class RawPrinterHelper
internal class PrinterWindows : PlatformPrinter
{
// Cut Code for the printer Alt-29, Alt-86, Alt-49
#region API Declarations
@ -43,35 +40,28 @@ namespace Tanshu.Accounts.Print
internal static extern bool WritePrinter(IntPtr hPrinter, IntPtr pBytes, Int32 dwCount, out Int32 dwWritten);
#endregion
internal static bool PrintString(string printerName, string documentName, string printingText, char[] lineBreakChars)
internal override bool Print(string printerName, string documentName, string printingText)
{
string[] PageText;
IntPtr hPrinter = new IntPtr(0);
// The printer handle.
Int32 dwError;
// Last error -incase there was trouble.
DOCINFOA di = new DOCINFOA();
// Describes your document(name, port, data type).
bool bSuccess = false; // Your success code.
var bSuccess = false; // Your success code.
// Set up the DOCINFO structure.
di.pDocName = documentName;
di.pDataType = "RAW";
PageText = printingText.Split(lineBreakChars );
if (OpenPrinter(printerName.Normalize(), out hPrinter, System.IntPtr.Zero))
if (OpenPrinter(printerName.Normalize(), out hPrinter, IntPtr.Zero))
{
if (StartDocPrinter(hPrinter, 1, di))
{
for (int i = 0; i < PageText.Length; i++)
{
if (StartPagePrinter(hPrinter))
{
//Write your printer - specific bytes to the printer.
bSuccess = SendLine(PageText[i], hPrinter);
EndPagePrinter(hPrinter);
}
}
if (!StartPagePrinter(hPrinter))
return false;
//Write your printer - specific bytes to the printer.
bSuccess = SendLine(printingText, hPrinter);
EndPagePrinter(hPrinter);
EndDocPrinter(hPrinter);
}
ClosePrinter(hPrinter);
@ -79,14 +69,13 @@ namespace Tanshu.Accounts.Print
// If you did not succeed, GetLastError may give more information about why not.
if (bSuccess == false)
{
dwError = Marshal.GetLastWin32Error();
Marshal.GetLastWin32Error();
}
return bSuccess;
}// SendBytesToPrinter()
internal static bool SendLine(string szString, IntPtr hPrinter)
{
bool bSuccess = false;
Int32 dwWritten = 0;
Int32 dwCount = szString.Length; // How many characters are in the string?
@ -95,9 +84,7 @@ namespace Tanshu.Accounts.Print
// the string to ANSI text.
// Write your bytes.
bSuccess = WritePrinter(hPrinter, pBytes, dwCount, out dwWritten);
return bSuccess;
return WritePrinter(hPrinter, pBytes, dwCount, out dwWritten);
}
}
}

5
Tanshu.Accounts.Print/Tanshu.Accounts.Print.csproj
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@ -78,7 +78,10 @@
<Reference Include="System.Xml" />
</ItemGroup>
<ItemGroup>
<Compile Include="RawPrinterHelper.cs" />
<Compile Include="PlatformPrinter.cs" />
<Compile Include="PrinterLinux.cs" />
<Compile Include="ThermalPrinter.cs" />
<Compile Include="PrinterWindows.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
<Compile Include="Thermal.cs" />
</ItemGroup>

16
Tanshu.Accounts.Print/Thermal.cs
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@ -239,19 +239,9 @@ namespace Tanshu.Accounts.Print
MessageBox.Show(text);
return true;
#else
try
{
text += printer.CutCode;
if (!RawPrinterHelper.PrintString(printer.Printer, documentName, text, new[] { ';' }))
{
GC.Collect();
MessageBox.Show("Error in PrintRAW Function. Please Report immediately");
}
}
catch (Exception ex)
{
throw ex;
}
text += printer.CutCode;
if (!ThermalPrinter.Printer.Print(printer.Printer, documentName, text))
MessageBox.Show("Error in PrintRAW Function. Please Report immediately");
return true;
#endif
}

30
Tanshu.Accounts.Print/ThermalPrinter.cs Normal file
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@ -0,0 +1,30 @@
using System;
using System.Runtime.InteropServices;
namespace Tanshu.Accounts.Print
{
internal class ThermalPrinter
{
private static readonly bool _runningOnLinux;
internal static PlatformPrinter Printer;
static ThermalPrinter()
{
_runningOnLinux = RunningOnLinux();
Printer = _runningOnLinux ? (PlatformPrinter)new PrinterLinux() : new PrinterWindows();
}
internal static bool RunningOnLinux()
{
var platform = (int)Environment.OSVersion.Platform;
if ((platform == 4) || (platform == 6) || (platform == 128))
{
if (Environment.GetEnvironmentVariable("not_supported_MONO_MWF_USE_NEW_X11_BACKEND") != null ||
Environment.GetEnvironmentVariable("MONO_MWF_MAC_FORCE_X11") != null)
{
return true;
}
}
return false;
}
}
}