Class: CupsPrinter
- Inherits:
-
Object
- Object
- CupsPrinter
- Defined in:
- lib/cupsffi/printer.rb
Overview
The MIT License
Copyright © 2011 Nathan Ehresman
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Instance Attribute Summary collapse
-
#name ⇒ Object
readonly
Returns the value of attribute name.
Class Method Summary collapse
Instance Method Summary collapse
- #attributes ⇒ Object
- #cancel_all_jobs ⇒ Object
-
#initialize(name) ⇒ CupsPrinter
constructor
A new instance of CupsPrinter.
- #print_data(data, mime_type, options = {}) ⇒ Object
- #print_file(file_name, options = {}) ⇒ Object
- #state ⇒ Object
Constructor Details
#initialize(name) ⇒ CupsPrinter
Returns a new instance of CupsPrinter.
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# File 'lib/cupsffi/printer.rb', line 26 def initialize(name) raise "Printer not found" unless CupsPrinter.get_all_printer_names.include? name @name = name end |
Instance Attribute Details
#name ⇒ Object (readonly)
Returns the value of attribute name.
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# File 'lib/cupsffi/printer.rb', line 24 def name @name end |
Class Method Details
.get_all_printer_names ⇒ Object
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# File 'lib/cupsffi/printer.rb', line 31 def self.get_all_printer_names p = FFI::MemoryPointer.new :pointer dest_count = CupsFFI::cupsGetDests(p) ary = [] dest_count.times do |i| d = CupsFFI::CupsDestS.new(p.get_pointer(0) + (CupsFFI::CupsDestS.size * i)) ary.push(d[:name].dup) end CupsFFI::cupsFreeDests(dest_count, p.get_pointer(0)) ary end |
Instance Method Details
#attributes ⇒ Object
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# File 'lib/cupsffi/printer.rb', line 43 def attributes p = FFI::MemoryPointer.new :pointer dest_count = CupsFFI::cupsGetDests(p) hash = {} dest_count.times do |i| dest = CupsFFI::CupsDestS.new(p.get_pointer(0) + (CupsFFI::CupsDestS.size * i)) next unless dest[:name] == @name dest[:num_options].times do |j| = CupsFFI::CupsOptionS.new(dest[:options] + (CupsFFI::CupsOptionS.size * j)) hash[[:name].dup] = [:value].dup end end CupsFFI::cupsFreeDests(dest_count, p.get_pointer(0)) hash end |
#cancel_all_jobs ⇒ Object
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# File 'lib/cupsffi/printer.rb', line 135 def cancel_all_jobs r = CupsFFI::cupsCancelJob(@name, CupsFFI::CUPS_JOBID_ALL) raise CupsFFI::cupsLastErrorString() if r == 0 end |
#print_data(data, mime_type, options = {}) ⇒ Object
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# File 'lib/cupsffi/printer.rb', line 100 def print_data(data, mime_type, = {}) = nil = 0 unless .empty? () = FFI::MemoryPointer.new :pointer .map do |key,value| = CupsFFI::cupsAddOption(key.to_s, value.to_s, , ) end = .get_pointer(0) end job_id = CupsFFI::cupsCreateJob(CupsFFI::CUPS_HTTP_DEFAULT, @name, 'data job', , ) if job_id == 0 last_error = CupsFFI::cupsLastErrorString() CupsFFI::cupsFreeOptions(, ) unless .nil? raise last_error end http_status = CupsFFI::cupsStartDocument(CupsFFI::CUPS_HTTP_DEFAULT, @name, job_id, 'my doc', mime_type, 1) http_status = CupsFFI::cupsWriteRequestData(CupsFFI::CUPS_HTTP_DEFAULT, data, data.length) ipp_status = CupsFFI::cupsFinishDocument(CupsFFI::CUPS_HTTP_DEFAULT, @name) unless ipp_status == :ipp_ok CupsFFI::cupsFreeOptions(, ) unless .nil? raise ipp_status.to_s end CupsFFI::cupsFreeOptions(, ) unless .nil? CupsJob.new(job_id, self) end |
#print_file(file_name, options = {}) ⇒ Object
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# File 'lib/cupsffi/printer.rb', line 74 def print_file(file_name, = {}) raise "File not found: #{file_name}" unless File.exists? file_name = nil = 0 unless .empty? () = FFI::MemoryPointer.new :pointer .map do |key,value| = CupsFFI::cupsAddOption(key.to_s, value.to_s, , ) end = .get_pointer(0) end job_id = CupsFFI::cupsPrintFile(@name, file_name, file_name, , ) if job_id == 0 last_error = CupsFFI::cupsLastErrorString() CupsFFI::cupsFreeOptions(, ) unless .nil? raise last_error end CupsFFI::cupsFreeOptions(, ) unless .nil? CupsJob.new(job_id, self) end |
#state ⇒ Object
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# File 'lib/cupsffi/printer.rb', line 59 def state o = attributes { :state => case o['printer-state'] when "3" then :idle when "4" then :printing when "5" then :stopped else :unknown end, :reasons => o['printer-state-reasons'].split(/,/) } end |