1 files changed, 175 insertions, 0 deletions
diff --git a/trunk/ext/tk/lib/tkextlib/blt/watch.rb b/trunk/ext/tk/lib/tkextlib/blt/watch.rb
new file mode 100644
index 0000000000..219ff78e97
--- /dev/null
+++ b/trunk/ext/tk/lib/tkextlib/blt/watch.rb
@@ -0,0 +1,175 @@
+#
+#  tkextlib/blt/watch.rb
+#                               by Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)
+#
+
+require 'tk'
+require 'tkextlib/blt.rb'
+
+module Tk::BLT
+  class Watch < TkObject
+    extend TkCore
+
+    TkCommandNames = ['::blt::watch'.freeze].freeze
+
+    WATCH_ID_TBL = TkCore::INTERP.create_table
+
+    (BLT_WATCH_ID = ['blt_watch_id'.freeze, '00000'.taint]).instance_eval{
+      @mutex = Mutex.new
+      def mutex; @mutex; end
+      freeze
+    }
+
+    TkCore::INTERP.init_ip_env{
+      WATCH_ID_TBL.mutex.synchronize{ WATCH_ID_TBL.clear }
+    }
+
+    def self.names(state = None)
+      lst = tk_split_list(tk_call('::blt::watch', 'names', state))
+      WATCH_ID_TBL.mutex.synchronize{
+        lst.collect{|name|
+          WATCH_ID_TBL[name] || name
+        }
+      }
+    end
+
+    def __numval_optkeys
+      ['maxlevel']
+    end
+    private :__numval_optkeys
+
+    def __boolval_optkeys
+      ['active']
+    end
+    private :__boolval_optkeys
+
+    def __config_cmd
+      ['::blt::watch', 'configure', self.path]
+    end
+    private :__config_cmd
+
+    def initialize(name = nil, keys = {})
+      if name.kind_of?(Hash)
+        keys = name
+        name = nil
+      end
+
+      if name
+        @id = name.to_s
+      else
+        BLT_WATCH_ID.mutex.synchronize{
+          @id = BLT_WATCH_ID.join(TkCore::INTERP._ip_id_)
+          BLT_WATCH_ID[1].succ!
+        }
+      end
+
+      @path = @id
+
+      WATCH_ID_TBL.mutex.synchronize{
+        WATCH_ID_TBL[@id] = self
+      }
+      tk_call('::blt::watch', 'create', @id, *hash_kv(keys))
+    end
+
+    def activate
+      tk_call('::blt::watch', 'activate', @id)
+      self
+    end
+    def deactivate
+      tk_call('::blt::watch', 'deactivate', @id)
+      self
+    end
+    def delete
+      tk_call('::blt::watch', 'delete', @id)
+      self
+    end
+    def info
+      ret = []
+      lst = tk_split_simplelist(tk_call('::blt::watch', 'info', @id))
+      until lst.empty?
+        k, v, *lst = lst
+        k = k[1..-1]
+        case k
+        when /^(#{__strval_optkeys.join('|')})$/
+          # do nothing
+
+        when /^(#{__numval_optkeys.join('|')})$/
+          begin
+            v = number(v)
+          rescue
+            v = nil
+          end
+
+        when /^(#{__numstrval_optkeys.join('|')})$/
+          v = num_or_str(v)
+
+        when /^(#{__boolval_optkeys.join('|')})$/
+          begin
+            v = bool(v)
+          rescue
+            v = nil
+          end
+
+        when /^(#{__listval_optkeys.join('|')})$/
+          v = simplelist(v)
+
+        when /^(#{__numlistval_optkeys.join('|')})$/
+          v = list(v)
+
+        else
+          if v.index('{')
+            v = tk_split_list(v)
+          else
+            v = tk_tcl2ruby(v)
+          end
+        end
+
+        ret << [k, v]
+      end
+
+      ret
+    end
+    def configinfo(slot = nil)
+      if slot
+        slot = slot.to_s
+        v = cget(slot)
+        if TkComm::GET_CONFIGINFO_AS_ARRAY
+          [slot, v]
+        else
+          {slot=>v}
+        end
+      else
+        if TkComm::GET_CONFIGINFO_AS_ARRAY
+          info
+        else
+          Hash[*(info.flatten)]
+        end
+      end
+    end
+    def cget_strict(key)
+      key = key.to_s
+      begin
+        info.assoc(key)[1]
+      rescue
+        fail ArgumentError, "unknown option '#{key}'"
+      end
+    end
+    def cget(key)
+      unless TkConfigMethod.__IGNORE_UNKNOWN_CONFIGURE_OPTION__
+        cget_strict(key)
+      else
+        begin
+          cget_strict(key)
+        rescue => e
+          if current_configinfo.has_key?(key.to_s)
+            # error on known option
+            fail e
+          else
+            # unknown option
+            nil
+          end
+        end
+      end
+    end
+  end
+end