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Overview
Comment: | Add file |
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Downloads: | Tarball | ZIP archive | SQL archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA3-256: |
f86e3b3480d767f16ccb801e3c5d872f |
User & Date: | kevin 2017-05-27 13:47:01 |
Context
2017-05-31
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01:07 | Add more files check-in: 6bb116abeb user: kevin tags: trunk | |
2017-05-27
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13:47 | Add file check-in: f86e3b3480 user: kevin tags: trunk | |
13:41 | initial empty check-in check-in: 9d5905feb5 user: kevin tags: trunk | |
Changes
Added tkballoonhelp.rb.
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 | # frozen_string_literal: false # # tkballoonhelp.rb : simple balloon help widget # by Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp) # # Add a balloon help to a widget. # This widget has only poor features. If you need more useful features, # please try to use the Tix extension of Tcl/Tk under Ruby/Tk. # # The interval time to display a balloon help is defined 'interval' option # (default is 750ms). # require 'tk' module Tk module RbWidget class BalloonHelp<TkLabel end end end class Tk::RbWidget::BalloonHelp<TkLabel DEFAULT_FOREGROUND = 'black' DEFAULT_BACKGROUND = 'white' DEFAULT_INTERVAL = 750 def _balloon_binding(interval) @timer = TkAfter.new(interval, 1, proc{show}) def @timer.interval(val) @sleep_time = val end @bindtag = TkBindTag.new @bindtag.bind('Enter', proc{@timer.start}) @bindtag.bind('Motion', proc{@timer.restart; erase}) @bindtag.bind('Any-ButtonPress', proc{@timer.restart; erase}) @bindtag.bind('Leave', proc{@timer.stop; erase}) tags = @parent.bindtags idx = tags.index(@parent) unless idx ppath = TkComm.window(@parent.path) idx = tags.index(ppath) || 0 end tags[idx,0] = @bindtag @parent.bindtags(tags) end private :_balloon_binding def initialize(parent=nil, keys={}) @parent = parent || Tk.root @frame = TkToplevel.new(@parent) @frame.withdraw @frame.overrideredirect(true) @frame.transient(TkWinfo.toplevel(@parent)) @epath = @frame.path if keys keys = _symbolkey2str(keys) else keys = {} end @command = keys.delete('command') @interval = keys.delete('interval'){DEFAULT_INTERVAL} _balloon_binding(@interval) # @label = TkLabel.new(@frame, 'background'=>'bisque').pack @label = TkLabel.new(@frame, 'foreground'=>DEFAULT_FOREGROUND, 'background'=>DEFAULT_BACKGROUND).pack @label.configure(_symbolkey2str(keys)) unless keys.empty? @path = @label end def epath @epath end def interval(val) if val @timer.interval(val) else @interval end end def command(cmd = Proc.new) @command = cmd self end def show x = TkWinfo.pointerx(@parent) y = TkWinfo.pointery(@parent) @frame.geometry("+#{x+1}+#{y+10}") if @command case @command.arity when 0 @command.call when 2 @command.call(x - TkWinfo.rootx(@parent), y - TkWinfo.rooty(@parent)) when 3 @command.call(x - TkWinfo.rootx(@parent), y - TkWinfo.rooty(@parent), self) else @command.call(x - TkWinfo.rootx(@parent), y - TkWinfo.rooty(@parent), self, @parent) end end @frame.deiconify @frame.raise begin # @org_cursor = @parent.cget('cursor') rescue # @org_cursor = @parent['cursor'] end begin # @parent.configure('cursor', 'crosshair') rescue # @parent.cursor('crosshair') end end def erase begin @parent.configure('cursor', @org_cursor) rescue @parent.cursor(@org_cursor) end @frame.withdraw end def destroy @frame.destroy end end ################################################ # test ################################################ if __FILE__ == $0 TkButton.new('text'=>'This button has a balloon help') {|b| pack('fill'=>'x') Tk::RbWidget::BalloonHelp.new(b, 'text'=>' Message ') } TkButton.new('text'=>'This button has another balloon help') {|b| pack('fill'=>'x') Tk::RbWidget::BalloonHelp.new(b, 'text'=>"CONFIGURED MESSAGE\nchange colors, and so on", 'interval'=>200, 'font'=>'courier', 'background'=>'gray', 'foreground'=>'red') } sb = TkScrollbox.new.pack(:fill=>:x) sb.insert(:end, *%w(aaa bbb ccc ddd eee fff ggg hhh iii jjj kkk lll mmm)) =begin # CASE1 : command takes no argument bh = Tk::RbWidget::BalloonHelp.new(sb, :interval=>500, :relief=>:ridge, :background=>'white', :command=>proc{ y = TkWinfo.pointery(sb) - TkWinfo.rooty(sb) bh.text "current index == #{sb.nearest(y)}" }) =end =begin # CASE2 : command takes 2 arguments bh = Tk::RbWidget::BalloonHelp.new(sb, :interval=>500, :relief=>:ridge, :background=>'white', :command=>proc{|x, y| bh.text "current index == #{sb.nearest(y)}" }) =end =begin # CASE3 : command takes 3 arguments Tk::RbWidget::BalloonHelp.new(sb, :interval=>500, :relief=>:ridge, :background=>'white', :command=>proc{|x, y, bhelp| bhelp.text "current index == #{sb.nearest(y)}" }) =end =begin # CASE4a : command is a Proc object and takes 4 arguments cmd = proc{|x, y, bhelp, parent| bhelp.text "current index == #{parent.nearest(y)}" } Tk::RbWidget::BalloonHelp.new(sb, :interval=>500, :relief=>:ridge, :background=>'white', :command=>cmd) sb2 = TkScrollbox.new.pack(:fill=>:x) sb2.insert(:end, *%w(AAA BBB CCC DDD EEE FFF GGG HHH III JJJ KKK LLL MMM)) Tk::RbWidget::BalloonHelp.new(sb2, :interval=>500, :padx=>5, :relief=>:raised, :background=>'gray25', :foreground=>'white', :command=>cmd) =end #=begin # CASE4b : command is a Method object and takes 4 arguments def set_msg(x, y, bhelp, parent) bhelp.text "current index == #{parent.nearest(y)}" end cmd = self.method(:set_msg) Tk::RbWidget::BalloonHelp.new(sb, :interval=>500, :relief=>:ridge, :background=>'white', :command=>cmd) sb2 = TkScrollbox.new.pack(:fill=>:x) sb2.insert(:end, *%w(AAA BBB CCC DDD EEE FFF GGG HHH III JJJ KKK LLL MMM)) Tk::RbWidget::BalloonHelp.new(sb2, :interval=>500, :padx=>5, :relief=>:raised, :background=>'gray25', :foreground=>'white', :command=>cmd) #=end Tk.mainloop end |