From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001 From: Jari Vetoniemi Date: Mon, 16 Mar 2020 18:49:26 +0900 Subject: Fresh start --- jni/ruby/ext/tk/sample/demos-jp/search.rb | 184 ++++++++++++++++++++++++++++++ 1 file changed, 184 insertions(+) create mode 100644 jni/ruby/ext/tk/sample/demos-jp/search.rb (limited to 'jni/ruby/ext/tk/sample/demos-jp/search.rb') diff --git a/jni/ruby/ext/tk/sample/demos-jp/search.rb b/jni/ruby/ext/tk/sample/demos-jp/search.rb new file mode 100644 index 0000000..238450a --- /dev/null +++ b/jni/ruby/ext/tk/sample/demos-jp/search.rb @@ -0,0 +1,184 @@ +# -*- coding: utf-8 -*- +# +# Text Search widget demo (called by 'widget') +# + +# textLoadFile -- +# This method below loads a file into a text widget, discarding +# the previous contents of the widget. Tags for the old widget are +# not affected, however. +# +# Arguments: +# w - The window into which to load the file. Must be a +# text widget. +# file - The name of the file to load. Must be readable. + +def textLoadFile(w,file) + w.delete('1.0', 'end') + f = open(file, 'r') + while(!f.eof?) + w.insert('end', f.read(1000)) + end + f.close +end + +# textSearch -- +# Search for all instances of a given string in a text widget and +# apply a given tag to each instance found. +# +# Arguments: +# w - The window in which to search. Must be a text widget. +# string - The string to search for. The search is done using +# exact matching only; no special characters. +# tag - Tag to apply to each instance of a matching string. + +def textSearch(w, string, tag) + tag.remove('0.0', 'end') + return if string == "" + cur = '1.0' + loop { + cur, len = w.search_with_length(string, cur, 'end') + break if cur == "" + tag.add(cur, "#{cur} + #{len} char") + cur = w.index("#{cur} + #{len} char") + } +end + +# textToggle -- +# This method is invoked repeatedly to invoke two commands at +# periodic intervals. It normally reschedules itself after each +# execution but if an error occurs (e.g. because the window was +# deleted) then it doesn't reschedule itself. +# +# Arguments: +# cmd1 - Command to execute when method is called. +# sleep1 - Ms to sleep after executing cmd1 before executing cmd2. +# cmd2 - Command to execute in the *next* invocation of this method. +# sleep2 - Ms to sleep after executing cmd2 before executing cmd1 again. + +def textToggle(cmd1,sleep1,cmd2,sleep2) + sleep_list = [sleep2, sleep1] + TkAfter.new(proc{sleep = sleep_list.shift; sleep_list.push(sleep); sleep}, + -1, cmd1, cmd2).start(sleep1) +end + +# toplevel widget が存在すれば削除する +if defined?($search_demo) && $search_demo + $search_demo.destroy + $search_demo = nil +end + +# demo 用の toplevel widget を生成 +$search_demo = TkToplevel.new {|w| + title("Text Demonstration - Search and Highlight") + iconname("search") + positionWindow(w) +} + +base_frame = TkFrame.new($search_demo).pack(:fill=>:both, :expand=>true) + +# frame 生成 +$search_buttons = TkFrame.new(base_frame) {|frame| + TkButton.new(frame) { + #text '了解' + text '閉じる' + command proc{ + tmppath = $search_demo + $search_demo = nil + tmppath.destroy + } + }.pack('side'=>'left', 'expand'=>'yes') + + TkButton.new(frame) { + text 'コード参照' + command proc{showCode 'search'} + }.pack('side'=>'left', 'expand'=>'yes') +} +$search_buttons.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m') + +# frame 生成 +TkFrame.new(base_frame) {|f| + TkLabel.new(f, 'text'=>'ファイル名:', + 'width'=>13, 'anchor'=>'w').pack('side'=>'left') + $search_fileName = TkVariable.new + TkEntry.new(f, 'width'=>40, + 'textvariable'=>$search_fileName) { + pack('side'=>'left') + bind('Return', proc{textLoadFile($search_text, $search_fileName.value) + $search_string_entry.focus}) + focus + } + TkButton.new(f, 'text'=>'読み込み', + 'command'=>proc{textLoadFile($search_text, + $search_fileName.value)})\ + .pack('side'=>'left', 'pady'=>5, 'padx'=>10) +}.pack('side'=>'top', 'fill'=>'x') + +TkFrame.new(base_frame) {|f| + TkLabel.new(f, 'text'=>'検索文字列:', + 'width'=>13, 'anchor'=>'w').pack('side'=>'left') + $search_searchString = TkVariable.new + $search_string_entry = TkEntry.new(f, 'width'=>40, + 'textvariable'=>$search_searchString) { + pack('side'=>'left') + bind('Return', proc{textSearch($search_text, $search_searchString.value, + $search_Tag)}) + } + TkButton.new(f, 'text'=>'反転', + 'command'=>proc{textSearch($search_text, + $search_searchString.value, + $search_Tag)}) { + pack('side'=>'left', 'pady'=>5, 'padx'=>10) + } +}.pack('side'=>'top', 'fill'=>'x') + +$search_text = TkText.new(base_frame, 'setgrid'=>true) {|t| + $search_Tag = TkTextTag.new(t) + TkScrollbar.new(base_frame, 'command'=>proc{|*args| t.yview(*args)}) {|sc| + t.yscrollcommand(proc{|first,last| sc.set first,last}) + pack('side'=>'right', 'fill'=>'y') + } + pack('expand'=>'yes', 'fill'=>'both') +} + +# Set up display styles for text highlighting. + +if TkWinfo.depth($search_demo) > 1 + textToggle(proc{ + $search_Tag.configure('background'=>'#ce5555', + 'foreground'=>'white') + }, + 800, + proc{ + $search_Tag.configure('background'=>'', 'foreground'=>'') + }, + 200 ) +else + textToggle(proc{ + $search_Tag.configure('background'=>'black', + 'foreground'=>'white') + }, + 800, + proc{ + $search_Tag.configure('background'=>'', 'foreground'=>'') + }, + 200 ) +end +$search_text.insert('1.0', "\ +このウィンドウは検索機構を実現するのにテキスト widget のタグ機能がどの \ +ように使われるのかをデモするものです。まず上のエントリにファイル名を入 \ +れ、<リターン> を押すか「ロード」ボタンを押してください。次にその下の \ +エントリに文字列を入力し、<リターン> を押すか「反転」ボタンを押してく \ +ださい。するとファイル中の、検索文字列と一致する部分に全て \"search_Tag\" \ +というタグがつけられ、タグの表示属性としてその文字列が点滅するように \ +設定されます。\n") +$search_text.insert('end', "\ +ファイル読み込みのカレントディレクトリは \"#{Dir.pwd}\" です。\ +") +$search_text.set_insert '0.0' + +$search_fileName.value = '' +$search_searchString.value = '' + +$search_text.width = 60 +$search_text.height = 20 -- cgit v1.2.3