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Linux printing should work perfectly now.

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To print first install printer with cups then give local printername as printer (not the URI).
This commit is contained in:
unknown 2011-07-12 14:17:55 +05:30
parent 0eb5c7d939
commit 226cc30057
2 changed files with 56 additions and 22 deletions
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67
Tanshu.Accounts.Print/PrinterLinux.cs
View File

@ -5,43 +5,86 @@ 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);
#region API Declarations
enum http_status_t /**** HTTP status codes ****/
{
HTTP_ERROR = -1, /* An error response from httpXxxx() */
HTTP_CONTINUE = 100, /* Everything OK, keep going... */
HTTP_SWITCHING_PROTOCOLS, /* HTTP upgrade to TLS/SSL */
HTTP_OK = 200, /* OPTIONS/GET/HEAD/POST/TRACE command was successful */
HTTP_CREATED, /* PUT command was successful */
HTTP_ACCEPTED, /* DELETE command was successful */
HTTP_NOT_AUTHORITATIVE, /* Information isn't authoritative */
HTTP_NO_CONTENT, /* Successful command, no new data */
HTTP_RESET_CONTENT, /* Content was reset/recreated */
HTTP_PARTIAL_CONTENT, /* Only a partial file was recieved/sent */
HTTP_MULTIPLE_CHOICES = 300, /* Multiple files match request */
HTTP_MOVED_PERMANENTLY, /* Document has moved permanently */
HTTP_MOVED_TEMPORARILY, /* Document has moved temporarily */
HTTP_SEE_OTHER, /* See this other link... */
HTTP_NOT_MODIFIED, /* File not modified */
HTTP_USE_PROXY, /* Must use a proxy to access this URI */
HTTP_BAD_REQUEST = 400, /* Bad request */
HTTP_UNAUTHORIZED, /* Unauthorized to access host */
HTTP_PAYMENT_REQUIRED, /* Payment required */
HTTP_FORBIDDEN, /* Forbidden to access this URI */
HTTP_NOT_FOUND, /* URI was not found */
HTTP_METHOD_NOT_ALLOWED, /* Method is not allowed */
HTTP_NOT_ACCEPTABLE, /* Not Acceptable */
HTTP_PROXY_AUTHENTICATION, /* Proxy Authentication is Required */
HTTP_REQUEST_TIMEOUT, /* Request timed out */
HTTP_CONFLICT, /* Request is self-conflicting */
HTTP_GONE, /* Server has gone away */
HTTP_LENGTH_REQUIRED, /* A content length or encoding is required */
HTTP_PRECONDITION, /* Precondition failed */
HTTP_REQUEST_TOO_LARGE, /* Request entity too large */
HTTP_URI_TOO_LONG, /* URI too long */
HTTP_UNSUPPORTED_MEDIATYPE, /* The requested media type is unsupported */
HTTP_REQUESTED_RANGE, /* The requested range is not satisfiable */
HTTP_EXPECTATION_FAILED, /* The expectation given in an Expect header field was not met */
HTTP_UPGRADE_REQUIRED = 426, /* Upgrade to SSL/TLS required */
HTTP_SERVER_ERROR = 500, /* Internal server error */
HTTP_NOT_IMPLEMENTED, /* Feature not implemented */
HTTP_BAD_GATEWAY, /* Bad gateway */
HTTP_SERVICE_UNAVAILABLE, /* Service is unavailable */
HTTP_GATEWAY_TIMEOUT, /* Gateway connection timed out */
HTTP_NOT_SUPPORTED, /* HTTP version not supported */
HTTP_AUTHORIZATION_CANCELED = 1000 /* User canceled authorization */
} ;
[DllImport("libcups", CharSet = CharSet.Ansi)]
static extern int cupsCreateJob(string http, string name, string title, int num_options, IntPtr options);
static extern int cupsCreateJob(IntPtr 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);
static extern int cupsStartDocument(IntPtr 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);
static extern int cupsWriteRequestData(IntPtr 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);
static extern int cupsFinishDocument(IntPtr http, string name);
// ipp_status_t cupsFinishDocument (http_t *http, const char *name);
// ReSharper restore InconsistentNaming
const string CUPS_FORMAT_TEXT = "text/plain";
#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 CUPS_HTTP_DEFAULT = new IntPtr(0);
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);
cupsStartDocument(CUPS_HTTP_DEFAULT, printerName, jobId, documentName, CUPS_FORMAT_TEXT, 1);
cupsWriteRequestData(CUPS_HTTP_DEFAULT, printingText, printingText.Length);
cupsFinishDocument(CUPS_HTTP_DEFAULT, printerName);
}
return jobId > 0;
}
// ReSharper restore InconsistentNaming
}
}

11
Tanshu.Accounts.Print/ThermalPrinter.cs
View File

@ -1,5 +1,4 @@
using System;
using System.Runtime.InteropServices;
namespace Tanshu.Accounts.Print
{
@ -16,15 +15,7 @@ namespace Tanshu.Accounts.Print
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;
return (platform == 4) || (platform == 6) || (platform == 128);
}
}
}