Class: Tk::Iwidgets::Scrolledtext

Inherits:
Scrolledwidget show all
Includes:
TkTextTagConfig
Defined in:
ext/lib/tkextlib/iwidgets/scrolledtext.rb,
ext/lib/tkextlib/iwidgets/scrolledtext.rb

Direct Known Subclasses

Scrolledhtml

Constant Summary collapse

TkCommandNames = 
['::iwidgets::scrolledtext'.freeze].freeze
WidgetClassName = 
'Scrolledtext'.freeze

Constants included from TkUtil

TkUtil::None, TkUtil::RELEASE_DATE

Constants included from TkCore

TkCore::EventFlag, TkCore::INTERP, TkCore::INTERP_MUTEX, TkCore::INTERP_ROOT_CHECK, TkCore::INTERP_THREAD, TkCore::INTERP_THREAD_STATUS, TkCore::RUN_EVENTLOOP_ON_MAIN_THREAD, TkCore::WIDGET_DESTROY_HOOK, TkCore::WITH_ENCODING, TkCore::WITH_RUBY_VM

Constants included from TkComm

TkComm::GET_CONFIGINFO_AS_ARRAY, TkComm::GET_CONFIGINFOwoRES_AS_ARRAY, TkComm::TkExtlibAutoloadModule, TkComm::Tk_CMDTBL, TkComm::Tk_IDs, TkComm::Tk_WINDOWS, TkComm::USE_TCLs_LIST_FUNCTIONS, TkComm::WidgetClassNames

Constants included from Tk

AUTO_PATH, Checkbutton, CloneMenu, JAPANIZED_TK, LIBRARY_PATH, Labelframe, MenuButton, OptionMenuButton, PACKAGE_PATH, Panedwindow, RELEASE_DATE, Radiobutton, TCL_LIBRARY_PATH, TCL_MAJOR_VERSION, TCL_MINOR_VERSION, TCL_PACKAGE_PATH, TCL_PATCHLEVEL, TCL_PRECISION, TCL_VERSION, TK_MAJOR_VERSION, TK_MINOR_VERSION, TK_PATCHLEVEL, TK_VERSION, Tkextlib_RELEASE_DATE, TreeCtrl_Widget, X_Scrollable, Y_Scrollable

Constants included from Encoding

Encoding::BINARY, Encoding::BINARY_NAME, Encoding::DEFAULT_EXTERNAL_NAME, Encoding::DEFAULT_INTERNAL_NAME, Encoding::ENCODING_TABLE, Encoding::RubyEncoding, Encoding::UNKNOWN, Encoding::UTF8_NAME

Constants included from TkDND::Shape

TkDND::Shape::PACKAGE_NAME

Instance Method Summary collapse

Methods included from TkTextTagConfig

#current_tag_configinfo, #current_window_configinfo, #tag_cget, #tag_cget_strict, #tag_configinfo, #tag_configure, #window_cget, #window_cget_strict, #window_configinfo, #window_configure

Methods included from TkItemConfigMethod

__IGNORE_UNKNOWN_CONFIGURE_OPTION__, #__check_available_itemconfigure_options, #__current_itemconfiginfo, __set_IGNORE_UNKNOWN_CONFIGURE_OPTION__!, #current_itemconfiginfo, #itemcget, #itemcget_strict, #itemconfiginfo, #itemconfigure

Methods included from TkItemConfigOptkeys

#__conv_item_keyonly_opts, #itemconfig_hash_kv

Methods included from TkUtil

_conv_args, #_conv_args, #_fromUTF8, _get_eval_enc_str, #_get_eval_enc_str, #_get_eval_string, _get_eval_string, _symbolkey2str, #_symbolkey2str, #_toUTF8, bool, #bool, callback, eval_cmd, #hash_kv, hash_kv, install_cmd, num_or_str, #num_or_str, number, #number, string, #string, uninstall_cmd

Methods included from TkTreatItemFont

#kanjifont_copy, #kanjitagfont_configure, #latintagfont_configure, #latintagfont_copy, #tagfont_configinfo, #tagfont_configure, #tagfont_copy

Methods inherited from Labeledwidget

alignlabels

Methods included from TkCore

#_tk_call_to_list_core, #after, #after_cancel, #after_idle, #appname, #appsend, #appsend_deny, #appsend_displayof, callback, #callback_break, #callback_continue, #callback_return, #chooseColor, #chooseDirectory, #do_one_event, #event_generate, #getMultipleOpenFile, #getMultipleSaveFile, #getOpenFile, #getSaveFile, #get_eventloop_tick, #get_eventloop_weight, #get_no_event_wait, #inactive, #inactive_displayof, #info, #ip_eval, #ip_eval_with_enc, #ip_eval_without_enc, #ip_invoke, #ip_invoke_with_enc, #ip_invoke_without_enc, #is_mainloop?, #load_cmd_on_ip, #mainloop, #mainloop_exist?, #mainloop_thread?, #mainloop_watchdog, #messageBox, #rb_appsend, #rb_appsend_displayof, #reset_inactive, #reset_inactive_displayof, #restart, #scaling, #scaling_displayof, #set_eventloop_tick, #set_eventloop_weight, #set_no_event_wait, #tk_call, #tk_call_to_list, #tk_call_to_list_with_enc, #tk_call_to_list_without_enc, #tk_call_to_simplelist, #tk_call_to_simplelist_with_enc, #tk_call_to_simplelist_without_enc, #tk_call_with_enc, #tk_call_without_enc, #windowingsystem

Methods included from TkComm

_at, _callback_entry?, _callback_entry_class?, _curr_cmd_id, _fromUTF8, _genobj_for_tkwidget, _next_cmd_id, _toUTF8, array2tk_list, #bind, #bind_all, #bind_append, #bind_append_all, #bind_remove, #bind_remove_all, #bindinfo, #bindinfo_all, bool, image_obj, install_cmd, #install_cmd, list, num_or_str, number, procedure, simplelist, string, #subst, tk_tcl2ruby, uninstall_cmd, #uninstall_cmd, window

Methods included from TkEvent

#install_bind, #install_bind_for_event_class

Methods inherited from Tk::Itk::Archetype

#__destroy_hook__, #component, #component_invoke, #component_obj, #component_path, to_eval

Methods inherited from TkWindow

_widget_inspect_full_=, _widget_inspect_full_?, #bind_class, #bindtags, #bindtags=, #bindtags_shift, #bindtags_unshift, #caret, #colormodel, #command, #cursor_propagate, #cursor_restore, #database_class, database_class, database_classname, #database_classname, #destroy, #eventloop_wait_destroy, #eventloop_wait_visibility, #exist?, #grab, #grab_current, #grab_release, #grab_set, #grab_set_global, #grab_status, #grid, #grid_anchor, #grid_bbox, #grid_column, #grid_columnconfig, #grid_columnconfiginfo, #grid_config, #grid_forget, #grid_in, #grid_info, #grid_location, #grid_propagate, #grid_remove, #grid_row, #grid_rowconfig, #grid_rowconfiginfo, #grid_size, #grid_slaves, #inspect, #lower, #pack, #pack_config, #pack_forget, #pack_in, #pack_info, #pack_propagate, #pack_slaves, #place, #place_config, #place_configinfo, #place_forget, #place_in, #place_info, #place_slaves, #raise, #set_focus, #thread_wait_destroy, #thread_wait_visibility, #tktrans_get_image, #tktrans_set_image, to_eval, #wait_destroy, #wait_visibility

Methods included from TkBindCore

#bind, #bind_append, #bind_remove, #bindinfo

Methods included from TkWinfo

appname, atom, atomname, cells, children, classname, colormapfull, containing, depth, exist?, fpixels, geometry, height, id, interps, manager, mapped?, parent, pixels, pointerx, pointerxy, pointery, reqheight, reqwidth, rgb, rootx, rooty, screen, screencells, screendepth, screenheight, screenmmheight, screenmmwidth, screenvisual, screenwidth, server, toplevel, viewable, visual, visualid, visualsavailable, vrootheight, vrootwidth, vrootx, vrooty, widget, width, #winfo_appname, #winfo_atom, #winfo_atomname, #winfo_cells, #winfo_children, #winfo_classname, #winfo_colormapfull, #winfo_containing, #winfo_depth, #winfo_exist?, #winfo_fpixels, #winfo_geometry, #winfo_height, #winfo_id, #winfo_interps, #winfo_manager, #winfo_mapped?, #winfo_parent, #winfo_pixels, #winfo_pointerx, #winfo_pointerxy, #winfo_pointery, #winfo_reqheight, #winfo_reqwidth, #winfo_rgb, #winfo_rootx, #winfo_rooty, #winfo_screen, #winfo_screencells, #winfo_screendepth, #winfo_screenheight, #winfo_screenmmheight, #winfo_screenmmwidth, #winfo_screenvisual, #winfo_screenwidth, #winfo_server, #winfo_toplevel, #winfo_viewable, #winfo_visual, #winfo_visualid, #winfo_visualsavailable, #winfo_vrootheight, #winfo_vrootwidth, #winfo_vrootx, #winfo_vrooty, #winfo_widget, #winfo_width, #winfo_x, #winfo_y, x, y

Methods included from Tk

BinaryString, EncodedString, #Grid, #Pack, #Place, UTF8_String, __set_toplevel_aliases__, add_kinsoku, bell, bell_on_display, const_missing, current_grabs, cursor_display, default_widget_set, default_widget_set=, delete_kinsoku, destroy, errorCode, errorInfo, exit, focus, focus_lastfor, focus_next, focus_prev, focus_to, fromUTF8, grid, grid_forget, has_mainwindow?, load_tcllibrary, load_tclscript, load_tclscript_rsrc, load_tclscript_rsrcid, lower_window, pack, pack_forget, pkgconfig_get, pkgconfig_list, place, place_forget, raise_window, #root, show_kinsoku, sleep, strictMotif, subst_tk_backslash, subst_utf_backslash, tcl_pkgconfig_get, tcl_pkgconfig_list, thread_update, thread_update_idletasks, tk_pkgconfig_get, tk_pkgconfig_list, toUTF8, to_backslash_sequence, ungrid, unload_tcllibrary, unpack, unplace, #update, update, update_idletasks, utf_to_backslash, utf_to_backslash_sequence, wakeup

Methods included from Encoding

#default_encoding=, #encoding=, #encoding_convertfrom, #encoding_convertto, #encoding_dirs, #encoding_dirs=, #encoding_name, #encoding_names, #encoding_obj, #encoding_objs, #encoding_system=, #encoding_system_name, #encoding_system_obj, #force_default_encoding, #force_default_encoding=, #force_default_encoding?, #tk_encoding_names

Methods included from TkDND::DND

#dnd_bindsource, #dnd_bindsource_info, #dnd_bindtarget, #dnd_bindtarget_info, #dnd_clearsource, #dnd_cleartarget, #dnd_drag, version

Methods included from TkDND::Shape

package_name, package_patchlevel, package_version, #shape_bounds, #shape_get, #shape_offset, #shape_set, #shape_update, version

Methods inherited from TkObject

#destroy, #epath, #event_generate, #path, #tk_send, #tk_send_to_list, #tk_send_to_list_with_enc, #tk_send_to_list_without_enc, #tk_send_to_simplelist, #tk_send_to_simplelist_with_enc, #tk_send_to_simplelist_without_enc, #tk_send_with_enc, #tk_send_without_enc, #to_eval

Methods included from TkConfigMethod

#[], #[]=, __IGNORE_UNKNOWN_CONFIGURE_OPTION__, #__check_available_configure_options, __set_IGNORE_UNKNOWN_CONFIGURE_OPTION__!, #cget, #cget_strict, #config_hash_kv, #configinfo, #configure, #configure_cmd, #current_configinfo

Methods included from TkTreatFont

#font_configinfo, #font_configure, #font_copy, #kanjifont_configure, #kanjifont_copy, #latinfont_configure, #latinfont_copy

Methods inherited from TkKernel

new

Constructor Details

#initialize(*args) ⇒ Scrolledtext

Returns a new instance of Scrolledtext.



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 34

def initialize(*args)
  super(*args)
  @text = component_widget('text')
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(id, *args) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 39

def method_missing(id, *args)
  if @text.respond_to?(id)
    @text.__send__(id, *args)
  else
    super(id, *args)
  end
end

Instance Method Details

#bbox(index) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 85

def bbox(index)
  list(tk_send('bbox', index))
end

#child_site ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 49

def child_site
  window(tk_call(@path, 'childsite'))
end

#clear ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 53

def clear
  tk_call(@path, 'clear')
  self
end

#compare(idx1, op, idx2) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 88

def compare(idx1, op, idx2)
  bool(tk_send_without_enc('compare', _get_eval_enc_str(idx1), 
                           op, _get_eval_enc_str(idx2)))
end

#current_image_configinfo(index, slot = nil) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 255

def current_image_configinfo(index, slot = nil)
  if TkComm::GET_CONFIGINFO_AS_ARRAY
    if slot
      conf = image_configinfo(index, slot)
      {conf[0] => conf[4]}
    else
      ret = {}
      image_configinfo(index).each{|conf|
        ret[conf[0]] = conf[4] if conf.size > 2
      }
      ret
    end
  else # ! TkComm::GET_CONFIGINFO_AS_ARRAY
    ret = {}
    image_configinfo(index, slot).each{|k, conf|
      ret[k] = conf[-1] if conf.kind_of?(Array)
    }
    ret
  end
end

#debug ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 93

def debug
  bool(tk_send_without_enc('debug'))
end

#debug=(boolean) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 96

def debug=(boolean)
  tk_send_without_enc('debug', boolean)
  #self
  boolean
end

#delete(first, last = None) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 102

def delete(first, last=None)
  tk_send_without_enc('delete', first, last)
  self
end

#dlineinfo(index) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 107

def dlineinfo(index)
  list(tk_send_without_enc('dlineinfo', _get_eval_enc_str(index)))
end

#export(file) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 67

def export(file)
  tk_call(@path, 'export', file)
  self
end

#get(*index) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 111

def get(*index)
  _fromUTF8(tk_send_without_enc('get', *index))
end

#get_displaychars(*index) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 114

def get_displaychars(*index)
  # Tk8.5 feature
  get('-displaychars', *index)
end

#image_cget(index, slot) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 130

def image_cget(index, slot)
  unless TkItemConfigMethod.__IGNORE_UNKNOWN_CONFIGURE_OPTION__
    image_cget_strict(index, slot)
  else
    begin
      image_cget_strict(index, slot)
    rescue => e
      begin
        if current_image_configinfo.has_key?(slot.to_s)
          # error on known option
          fail e
        else
          # unknown option
          nil
        end
      rescue
        fail e  # tag error
      end
    end
  end
end

#image_cget_strict(index, slot) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 119

def image_cget_strict(index, slot)
  case slot.to_s
  when 'text', 'label', 'show', 'data', 'file'
    _fromUTF8(tk_send_without_enc('image', 'cget', 
                                  _get_eval_enc_str(index), "-#{slot}"))
  else
    tk_tcl2ruby(_fromUTF8(tk_send_without_enc('image', 'cget', 
                                              _get_eval_enc_str(index), 
                                              "-#{slot}")))
  end
end

#image_configinfo(index, slot = nil) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 166

def image_configinfo(index, slot = nil)
  if TkComm::GET_CONFIGINFO_AS_ARRAY
    if slot
      case slot.to_s
      when 'text', 'label', 'show', 'data', 'file'
        #conf = tk_split_simplelist(_fromUTF8(tk_send_without_enc('image', 'configure', _get_eval_enc_str(index), "-#{slot}")))
        conf = tk_split_simplelist(tk_send_without_enc('image', 'configure', _get_eval_enc_str(index), "-#{slot}"), false, true)
      else
        #conf = tk_split_list(_fromUTF8(tk_send_without_enc('image', 'configure', _get_eval_enc_str(index), "-#{slot}")))
        conf = tk_split_list(tk_send_without_enc('image', 'configure', _get_eval_enc_str(index), "-#{slot}"), 0, false, true)
      end
      conf[0] = conf[0][1..-1]
      conf
    else
      #tk_split_simplelist(_fromUTF8(tk_send_without_enc('image', 'configure', _get_eval_enc_str(index)))).collect{|conflist|
      #  conf = tk_split_simplelist(conflist)
      tk_split_simplelist(tk_send_without_enc('image', 'configure', _get_eval_enc_str(index)), false, false).collect{|conflist|
        conf = tk_split_simplelist(conflist, false, true)
        conf[0] = conf[0][1..-1]
        case conf[0]
        when 'text', 'label', 'show', 'data', 'file'
        else
          if conf[3]
            if conf[3].index('{')
              conf[3] = tk_split_list(conf[3]) 
            else
              conf[3] = tk_tcl2ruby(conf[3]) 
            end
          end
          if conf[4]
            if conf[4].index('{')
              conf[4] = tk_split_list(conf[4]) 
            else
              conf[4] = tk_tcl2ruby(conf[4]) 
            end
          end
        end
        conf[1] = conf[1][1..-1] if conf.size == 2 # alias info
        conf
      }
    end
  else # ! TkComm::GET_CONFIGINFO_AS_ARRAY
    if slot
      case slot.to_s
      when 'text', 'label', 'show', 'data', 'file'
        #conf = tk_split_simplelist(_fromUTF8(tk_send_without_enc('image', 'configure', _get_eval_enc_str(index), "-#{slot}")))
        conf = tk_split_simplelist(tk_send_without_enc('image', 'configure', _get_eval_enc_str(index), "-#{slot}"), false, true)
      else
        #conf = tk_split_list(_fromUTF8(tk_send_without_enc('image', 'configure', _get_eval_enc_str(index), "-#{slot}")))
        conf = tk_split_list(tk_send_without_enc('image', 'configure', _get_eval_enc_str(index), "-#{slot}"), 0, false, true)
      end
      key = conf.shift[1..-1]
      { key => conf }
    else
      ret = {}
      #tk_split_simplelist(_fromUTF8(tk_send_without_enc('image', 'configure', _get_eval_enc_str(index)))).each{|conflist|
      #  conf = tk_split_simplelist(conflist)
      tk_split_simplelist(tk_send_without_enc('image', 'configure', _get_eval_enc_str(index)), false, false).each{|conflist|
        conf = tk_split_simplelist(conflist, false, true)
        key = conf.shift[1..-1]
        case key
        when 'text', 'label', 'show', 'data', 'file'
        else
          if conf[2]
            if conf[2].index('{')
              conf[2] = tk_split_list(conf[2]) 
            else
              conf[2] = tk_tcl2ruby(conf[2]) 
            end
          end
          if conf[3]
            if conf[3].index('{')
              conf[3] = tk_split_list(conf[3]) 
            else
              conf[3] = tk_tcl2ruby(conf[3]) 
            end
          end
        end
        if conf.size == 1
          ret[key] = conf[0][1..-1]  # alias info
        else
          ret[key] = conf
        end
      }
      ret
    end
  end
end

#image_configure(index, slot, value = None) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 152

def image_configure(index, slot, value=None)
  if slot.kind_of? Hash
    _fromUTF8(tk_send_without_enc('image', 'configure', 
                                  _get_eval_enc_str(index), 
                                  *hash_kv(slot, true)))
  else
    _fromUTF8(tk_send_without_enc('image', 'configure', 
                                  _get_eval_enc_str(index), 
                                  "-#{slot}", 
                                  _get_eval_enc_str(value)))
  end
  self
end

#image_names ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 276

def image_names
  #tk_split_simplelist(_fromUTF8(tk_send_without_enc('image', 'names'))).collect{|elt|
  tk_split_simplelist(tk_send_without_enc('image', 'names'), false, true).collect{|elt|
    tagid2obj(elt)
  }
end

#import(file, idx = nil) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 58

def import(file, idx=nil)
  if idx
    tk_call(@path, 'import', file, index(idx))
  else
    tk_call(@path, 'import', file)
  end
  self
end

#index(idx) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 283

def index(idx)
  tk_send_without_enc('index', _get_eval_enc_str(idx))
end

#insert(index, *args) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 287

def insert(index, *args)
  tk_send('insert', index, *args)
  self
end

#mark_gravity(mark, direction = nil) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 299

def mark_gravity(mark, direction=nil)
  if direction
    tk_send_without_enc('mark', 'gravity', 
                        _get_eval_enc_str(mark), direction)
    self
  else
    tk_send_without_enc('mark', 'gravity', _get_eval_enc_str(mark))
  end
end

#mark_names ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 292

def mark_names
  #tk_split_simplelist(_fromUTF8(tk_send_without_enc('mark', 'names'))).collect{|elt|
  tk_split_simplelist(tk_send_without_enc('mark', 'names'), false, true).collect{|elt|
    tagid2obj(elt)
  }
end

#mark_next(index) ⇒ Object Also known as: next_mark 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 323

def mark_next(index)
  tagid2obj(_fromUTF8(tk_send_without_enc('mark', 'next', 
                                          _get_eval_enc_str(index))))
end

#mark_previous(index) ⇒ Object Also known as: previous_mark 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 329

def mark_previous(index)
  tagid2obj(_fromUTF8(tk_send_without_enc('mark', 'previous', 
                                          _get_eval_enc_str(index))))
end

#mark_set(mark, index) ⇒ Object Also known as: set_mark 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 309

def mark_set(mark, index)
  tk_send_without_enc('mark', 'set', _get_eval_enc_str(mark), 
                      _get_eval_enc_str(index))
  self
end

#mark_unset(*marks) ⇒ Object Also known as: unset_mark 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 316

def mark_unset(*marks)
  tk_send_without_enc('mark', 'unset', 
                      *(marks.collect{|mark| _get_eval_enc_str(mark)}))
  self
end

#rsearch(pat, start, stop = None) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 524

def rsearch(pat,start,stop=None)
  rsearch_with_length(pat,start,stop)[0]
end

#rsearch_with_length(pat, start, stop = None) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 472

def rsearch_with_length(pat,start,stop=None)
  pat = pat.chr if pat.kind_of? Integer
  if stop != None
    return ["", 0] if compare(start,'<=',stop)
    txt = get(stop,start)
    if (pos = txt.rindex(pat))
      match = $&
      #pos = txt[0..(pos-1)].split('').length if pos > 0
      pos = _ktext_length(txt[0..(pos-1)]) if pos > 0
      if pat.kind_of? String
        #return [index(stop + " + #{pos} chars"), pat.split('').length]
        return [index(stop + " + #{pos} chars"), _ktext_length(pat), pat.dup]
      else
        #return [index(stop + " + #{pos} chars"), $&.split('').length]
        return [index(stop + " + #{pos} chars"), _ktext_length(match), match]
      end
    else
      return ["", 0]
    end
  else
    txt = get('1.0',start)
    if (pos = txt.rindex(pat))
      match = $&
      #pos = txt[0..(pos-1)].split('').length if pos > 0
      pos = _ktext_length(txt[0..(pos-1)]) if pos > 0
      if pat.kind_of? String
        #return [index("1.0 + #{pos} chars"), pat.split('').length]
        return [index("1.0 + #{pos} chars"), _ktext_length(pat), pat.dup]
      else
        #return [index("1.0 + #{pos} chars"), $&.split('').length]
        return [index("1.0 + #{pos} chars"), _ktext_length(match), match]
      end
    else
      txt = get('1.0','end - 1 char')
      if (pos = txt.rindex(pat))
        match = $&
        #pos = txt[0..(pos-1)].split('').length if pos > 0
        pos = _ktext_length(txt[0..(pos-1)]) if pos > 0
        if pat.kind_of? String
          #return [index("1.0 + #{pos} chars"), pat.split('').length]
          return [index("1.0 + #{pos} chars"), _ktext_length(pat), pat.dup]
        else
          #return [index("1.0 + #{pos} chars"), $&.split('').length]
          return [index("1.0 + #{pos} chars"), _ktext_length(match), match]
        end
      else
        return ["", 0]
      end
    end
  end
end

#scan_dragto(x, y) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 339

def scan_dragto(x, y)
  tk_send_without_enc('scan', 'dragto', x, y)
  self
end

#scan_mark(x, y) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 335

def scan_mark(x, y)
  tk_send_without_enc('scan', 'mark', x, y)
  self
end

#search(pat, start, stop = None) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 468

def search(pat,start,stop=None)
  search_with_length(pat,start,stop)[0]
end

#search_with_length(pat, start, stop = None) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 411

def search_with_length(pat,start,stop=None)
  pat = pat.chr if pat.kind_of? Integer
  if stop != None
    return ["", 0] if compare(start,'>=',stop)
    txt = get(start,stop)
    if (pos = txt.index(pat))
      match = $&
      #pos = txt[0..(pos-1)].split('').length if pos > 0
      pos = _ktext_length(txt[0..(pos-1)]) if pos > 0
      if pat.kind_of? String
        #return [index(start + " + #{pos} chars"), pat.split('').length]
        return [index(start + " + #{pos} chars"), 
                _ktext_length(pat), pat.dup]
      else
        #return [index(start + " + #{pos} chars"), $&.split('').length]
        return [index(start + " + #{pos} chars"), 
                _ktext_length(match), match]
      end
    else
      return ["", 0]
    end
  else
    txt = get(start,'end - 1 char')
    if (pos = txt.index(pat))
      match = $&
      #pos = txt[0..(pos-1)].split('').length if pos > 0
      pos = _ktext_length(txt[0..(pos-1)]) if pos > 0
      if pat.kind_of? String
        #return [index(start + " + #{pos} chars"), pat.split('').length]
        return [index(start + " + #{pos} chars"), 
                _ktext_length(pat), pat.dup]
      else
        #return [index(start + " + #{pos} chars"), $&.split('').length]
        return [index(start + " + #{pos} chars"), 
                _ktext_length(match), match]
      end
    else
      txt = get('1.0','end - 1 char')
      if (pos = txt.index(pat))
        match = $&
        #pos = txt[0..(pos-1)].split('').length if pos > 0
        pos = _ktext_length(txt[0..(pos-1)]) if pos > 0
        if pat.kind_of? String
          #return [index("1.0 + #{pos} chars"), pat.split('').length]
          return [index("1.0 + #{pos} chars"), 
                  _ktext_length(pat), pat.dup]
        else
          #return [index("1.0 + #{pos} chars"), $&.split('').length]
          return [index("1.0 + #{pos} chars"), _ktext_length(match), match]
        end
      else
        return ["", 0]
      end
    end
  end
end

#see(index) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 528

def see(index)
  tk_send_without_enc('see', index)
  self
end

#tksearch(*args) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 371

def tksearch(*args)
  # call 'search' subcommand of text widget
  #   args ::= [<array_of_opts>] <pattern> <start_index> [<stop_index>]
  # If <pattern> is regexp, then it must be a regular expression of Tcl
  if args[0].kind_of?(Array)
    opts = args.shift.collect{|opt| '-' + opt.to_s }
  else
    opts = []
  end

  opts << '--'

  ret = tk_send('search', *(opts + args))
  if ret == ""
    nil
  else
    ret
  end
end

#tksearch_with_count(*args) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 391

def tksearch_with_count(*args)
  # call 'search' subcommand of text widget
  #   args ::= [<array_of_opts>] <var> <pattern> <start_index> [<stop_index>]
  # If <pattern> is regexp, then it must be a regular expression of Tcl
  if args[0].kind_of?(Array)
    opts = args.shift.collect{|opt| '-' + opt.to_s }
  else
    opts = []
  end

  opts << '-count' << args.shift << '--'

  ret = tk_send('search', *(opts + args))
  if ret == ""
    nil
  else
    ret
  end
end

#xview(*index) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 535

def xview(*index)
  if index.size == 0
    list(tk_send_without_enc('xview'))
  else
    tk_send_without_enc('xview', *index)
    self
  end
end

#xview_moveto(*index) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 543

def xview_moveto(*index)
  xview('moveto', *index)
end

#xview_scroll(*index) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 546

def xview_scroll(*index)
  xview('scroll', *index)
end

#yview(*index) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 550

def yview(*index)
  if index.size == 0
    list(tk_send_without_enc('yview'))
  else
    tk_send_without_enc('yview', *index)
    self
  end
end

#yview_moveto(*index) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 558

def yview_moveto(*index)
  yview('moveto', *index)
end

#yview_scroll(*index) ⇒ Object 



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# File 'ext/lib/tkextlib/iwidgets/scrolledtext.rb', line 561

def yview_scroll(*index)
  yview('scroll', *index)
end