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9388ed284d
* ext/tk/lib/{tk.rb, tkcanvas.rb, tkfont.rb, tktext.rb} :
bug fix and improvement of font control
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4480 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
525 lines
19 KiB
Ruby
525 lines
19 KiB
Ruby
#!/usr/bin/env ruby
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# widget --
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# This script demonstrates the various widgets provided by Tk,
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# along with many of the features of the Tk toolkit. This file
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# only contains code to generate the main window for the
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# application, which invokes individual demonstrations. The
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# code for the actual demonstrations is contained in separate
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# ".rb" files is this directory, which are sourced by this script
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# as needed.
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require 'tk'
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#unless /^8\.[1-9]/ =~ Tk::TCL_VERSION && !Tk::JAPANIZED_TK
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# require 'tkencoding'
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#end
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require 'tkafter'
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### $DEBUG=1 ##########
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#----------------------------------------------------------------
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# The code below create the main window, consisting of a menu bar
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# and a text widget that explains how to use the program, plus lists
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# all of the demos as hypertext items.
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#----------------------------------------------------------------
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# widget demo directory
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$demo_dir = File.dirname($0)
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# root
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$root = TkRoot.new{title "Ruby/Tk Widget Demonstration"}
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# tk
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$tk_version = Tk::TK_VERSION
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# tcl_platform
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$tk_platform = TkVarAccess.new('tcl_platform')
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#
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$font = TkFont.new('-*-Helvetica-Medium-R-Normal--*-140-*-*-*-*-*-*', nil)
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#
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TkMenubar.new($root,
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[[['File', 0],
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['About ... ', proc{aboutBox}, 0, '<F1>'],
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'---',
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['Quit', proc{exit}, 0, 'Meta-Q']
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]]).pack('side'=>'top', 'fill'=>'x')
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$root.bind('F1', proc{aboutBox})
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=begin
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TkFrame.new($root){|frame|
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TkMenubutton.new(frame){|button|
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m = TkMenu.new(button) {
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add 'command', 'label'=>'Quit', 'command'=>proc{exit}, 'underline'=>0
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}
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menu m
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text 'File'
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underline 0
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}.pack('side'=>'left')
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}.pack('side'=>'top', 'fill'=>'x')
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=end
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#
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if $tk_version =~ /^4\.[01]/
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scr = TkScrollbar.new($root, 'orient'=>'vertical')
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txt = TkText.new($root) {
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wrap 'word'
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width 60
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height 30
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font $font
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setgrid 'yes'
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yscrollcommand proc{|first,last| scr.set first,last}
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}
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scr.command(proc{|*args| txt.yview(*args)})
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scr.pack('side'=>'right', 'fill'=>'y')
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txt.pack('expand'=>'yes', 'fill'=>'both')
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else
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textFrame = TkFrame.new($root)
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scr = TkScrollbar.new($root, 'orient'=>'vertical',
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'highlightthickness'=>0, 'takefocus'=>1) {
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pack('in'=>textFrame, 'side'=>'right', 'fill'=>'y', 'padx'=>1)
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}
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txt = TkText.new($root) {
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wrap 'word'
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width 60
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height 30
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font $font
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setgrid 'yes'
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highlightthickness 0
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padx 4
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pady 2
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takefocus 0
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yscrollcommand proc{|first,last| scr.set first,last}
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}
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scr.command(proc{|*args| txt.yview(*args)})
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# txt.pack('in'=>textFrame, 'expand'=>'yes', 'fill'=>'both', 'padx'=>1)
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txt.pack('in'=>textFrame, 'expand'=>'yes', 'fill'=>'both')
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# textFrame.pack('expand'=>'yes', 'fill'=>'both', 'padx'=>1, 'pady'=>2)
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textFrame.pack('expand'=>'yes', 'fill'=>'both')
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statusBar = TkFrame.new($root) {|f|
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$statusBarLabel = \
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TkLabel.new(f, 'text'=>" ", 'relief'=>'sunken', 'bd'=>1, 'anchor'=>'w',
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'font'=>'-*-Helvetica-Medium-R-Normal--*-120-*-*-*-*-*-*') \
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.pack('side'=>'left', 'padx'=>2, 'expand'=>'yes', 'fill'=>'both')
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TkLabel.new(f, 'width'=>8, 'relief'=>'sunken', 'bd'=>1, 'anchor'=>'w',
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'font'=>'-*-Helvetica-Medium-R-Normal--*-120-*-*-*-*-*-*') \
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.pack('side'=>'left', 'padx'=>2)
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}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>2)
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end
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# Create a bunch of tags to use in the text widget, such as those for
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# section titles and demo descriptions. Also define the bindings for
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# tags.
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tag_title = TkTextTag.new(txt, 'font'=>'-*-Helvetica-Bold-R-Normal--*-180-*-*-*-*-*-*')
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# We put some "space" characters to the left and right of each demo description
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# so that the descriptions are highlighted only when the mouse cursor
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# is right over them (but not when the cursor is to their left or right)
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tag_demospace = TkTextTag.new(txt, 'lmargin1'=>'1c', 'lmargin2'=>'1c')
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if TkWinfo.depth($root) == '1'
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tag_demo = TkTextTag.new(txt, 'lmargin1'=>'1c', 'lmargin2'=>'1c',
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'underline'=>1)
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$tag_visited = TkTextTag.new(txt, 'lmargin1'=>'1c', 'lmargin2'=>'1c',
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'underline'=>1)
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tag_hot = TkTextTag.new(txt, 'background'=>'black', 'foreground'=>'white')
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else
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tag_demo = TkTextTag.new(txt, 'lmargin1'=>'1c', 'lmargin2'=>'1c',
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'foreground'=>'blue', 'underline'=>1)
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$tag_visited = TkTextTag.new(txt, 'lmargin1'=>'1c', 'lmargin2'=>'1c',
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'foreground'=>'#303080', 'underline'=>1)
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# tag_hot = TkTextTag.new(txt, 'relief'=>'raised', 'borderwidth'=>1,
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# 'background'=>'SeaGreen3')
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tag_hot = TkTextTag.new(txt, 'borderwidth'=>1, 'foreground'=>'red')
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end
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#tag_demo.bind('Button-1', proc{invoke txt, txt.index('current')})
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tag_demo.bind('ButtonRelease-1',
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proc{|x,y|invoke txt, txt.index("@#{x},#{y}")}, '%x %y')
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lastLine = TkVariable.new("")
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newLine = TkVariable.new("")
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tag_demo.bind('Enter', proc{|x,y|
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lastLine.value = txt.index("@#{x},#{y} linestart")
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tag_hot.add(lastLine.value, "#{lastLine.value} lineend")
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showStatus txt, txt.index("@#{x},#{y}")
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},
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'%x %y')
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tag_demo.bind('Leave',
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proc{
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tag_hot.remove('1.0','end')
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txt.configure('cursor','xterm')
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$statusBarLabel.configure('text'=>"")
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})
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tag_demo.bind('Motion', proc{|x, y|
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newLine.value = txt.index("@#{x},#{y} linestart")
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if newLine.value != lastLine.value
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tag_hot.remove('1.0','end')
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lastLine.value = newLine.value
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if ( txt.tag_names("@#{x},#{y}").find{|t|
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t.kind_of?(String) && t =~ /^demo-/
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} )
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tag_hot.add(lastLine.value,
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"#{lastLine.value} lineend -1 chars")
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end
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end
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showStatus txt, txt.index("@#{x},#{y}")
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},
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'%x %y')
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# Create the text for the text widget.
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txt.insert('end', "Ruby/Tk Widget Demonstrations\n\n", tag_title)
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txt.insert('end', <<EOT)
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This application provides a front end for several short scripts that \
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demonstrate what you can do with Tk widgets. Each of the numbered \
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lines below describes a demonstration; you can click on it to invoke \
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the demonstration. Once the demonstration window appears, you can \
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click the "See Code" button to see the Ruby/Tk code that created the \
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demonstration. If you wish, you can edit the code and click the \
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"Rerun Demo" button in the code window to reinvoke the demonstration \
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with the modified code.
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Some demo scripts require the recent version of Tk library \
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(e.g. Tk8.4 or later) \
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If your Tk library linked to Ruby doesn't support the functions \
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required by the demo script, the demo doesn't work. \
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In such a case, please re-compile tcltklib with the later Tk library \
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which supports the required functions.
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EOT
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txt.insert('end', "Labels, buttons, checkbuttons, and radiobuttons.\n", tag_title)
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "1. Labels (text and bitmaps).\n", tag_demo, "demo-label")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "2. Buttons.\n", tag_demo, "demo-button")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "3. Checkbuttons (select any of a group).\n", tag_demo, "demo-check")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "4. Radiobuttons (select one of a group).\n", tag_demo, "demo-radio")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "5. Radiobuttons (if supported 'compound' option).\n", tag_demo, "demo-radio2")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "6. A 15-puzzle game made out of buttons.\n", tag_demo, "demo-puzzle")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "7. Iconic buttons that use bitmaps.\n", tag_demo, "demo-icon")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "8. Two labels displaying images.\n", tag_demo, "demo-image1")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "9. A simple user interface for viewing images.\n", tag_demo, "demo-image2")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "10. A simple user interface for viewing images. (if supported)\n", tag_demo, "demo-image3")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "11. Labelled frames (if supported)\n", tag_demo, "demo-labelframe")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "\n")
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txt.insert('end', "Listboxes\n", tag_title)
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "1. 50 states.\n", tag_demo, "demo-states")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "2. Colors: change the color scheme for the application.\n", "#{tag_demo.id} demo-colors")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "3. A collection of famous sayings.\n", tag_demo, "demo-sayings")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "\n")
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txt.insert('end', "Entries and Spin-boxes\n", tag_title)
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "1. Without scrollbars.\n", tag_demo, "demo-entry1")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "2. With scrollbars.\n", tag_demo, "demo-entry2")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "3. Spin-boxes. (if supported)\n", tag_demo, "demo-spin")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "4. Simple Rolodex-like form.\n", tag_demo, "demo-form")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "\n")
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txt.insert('end', "Text\n", tag_title)
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "1. Basic editable text.\n", tag_demo, "demo-text")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "2. Text display styles.\n", tag_demo, "demo-style")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "3. Hypertext (tag bindings).\n", tag_demo, "demo-bind")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "4. A text widget with embedded windows.\n", tag_demo, "demo-twind")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "5. A search tool built with a text widget.\n", tag_demo, "demo-search")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "\n")
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txt.insert('end', "Canvases\n", tag_title)
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "1. The canvas item types.\n", tag_demo, "demo-items")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "2. A simple 2-D plot.\n", tag_demo, "demo-plot")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "3. Text items in canvases.\n", tag_demo, "demo-ctext")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "4. An editor for arrowheads on canvas lines.\n", tag_demo, "demo-arrow")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "5. A ruler with adjustable tab stops.\n", tag_demo, "demo-ruler")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "6. A building floor plan.\n", tag_demo, "demo-floor")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "7. A simple scrollable canvas.\n", tag_demo, "demo-cscroll")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "\n")
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txt.insert('end', "Scales\n", tag_title)
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "1. Vertical scale.\n", tag_demo.id, "demo-vscale")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "2. Horizontal scale.\n", tag_demo.id, "demo-hscale")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "\n")
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txt.insert('end', "Paned Windows\n", tag_title)
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "1. Horizontal paned window. (if supported)\n", tag_demo.id, "demo-paned1")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "2. Vertical paned window. (if supported)\n", tag_demo.id, "demo-paned2")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "\n")
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txt.insert('end', "Menus\n", tag_title)
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "1. Menus and cascades.\n", tag_demo, "demo-menu")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "2. Menus and cascades. (if supported)\n", tag_demo, "demo-menu84")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "3. Menubuttons\n", tag_demo, "demo-menubu")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "\n")
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txt.insert('end', "Common Dialogs\n", tag_title)
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "1. Message boxes.\n", tag_demo, "demo-msgbox")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "2. File selection dialog.\n", tag_demo, "demo-filebox")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "3. Color picker.\n", tag_demo, "demo-clrpick")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "\n")
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txt.insert('end', "Miscellaneous\n", tag_title)
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "1. The built-in bitmaps.\n", tag_demo, "demo-bitmap")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "2. A dialog box with a local grab.\n", tag_demo, "demo-dialog1")
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txt.insert('end', " \n ", tag_demospace)
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txt.insert('end', "3. A dialog box with a global grab.\n", tag_demo, "demo-dialog2")
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txt.insert('end', " \n ", tag_demospace)
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txt.state('disabled')
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scr.focus
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# positionWindow --
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# This procedure is invoked by most of the demos to position a
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# new demo window.
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#
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# Arguments:
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# w - The name of the window to position.
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def positionWindow(w)
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w.geometry('+300+300')
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end
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# showVars --
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# Displays the values of one or more variables in a window, and
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# updates the display whenever any of the variables changes.
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#
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# Arguments:
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# w - Name of new window to create for display.
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# args - Any number of names of variables.
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$showVarsWin = {}
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def showVars (parent, *args)
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if $showVarsWin[parent.path]
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begin
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$showVarsWin[parent.path].destroy
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rescue
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end
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end
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w = TkToplevel.new(parent) {|w|
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title "Variable values"
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TkLabel.new(w) {
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text "Variable values:"
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width 20
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anchor 'center'
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font '-Adobe-helvetica-medium-r-normal--*-180-*-*-*-*-*-*'
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}.pack('side'=>'top', 'fill'=>'x')
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len = 1
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args.each{|vnam,vbody|
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len = vnam.to_s.length if vnam.to_s.length > len
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}
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args.each{|vnam,vbody|
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TkFrame.new(w){|f|
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#TkLabel.new(f, 'text'=>"#{vnam}: ").pack('side'=>'left')
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TkLabel.new(f, 'text'=>"#{vnam}: ",'width'=>len+2).pack('side'=>'left')
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TkLabel.new(f, 'textvariable'=>vbody, 'anchor'=>'w')\
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.pack('side'=>'left', 'expand'=>'yes', 'fill'=>'x')
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}.pack('side'=>'top', 'anchor'=>'w', 'fill'=>'x')
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}
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TkButton.new(w) {
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text "OK"
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command proc{w.destroy}
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}.pack('side'=>'bottom', 'pady'=>2)
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}
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$showVarsWin[parent.path] = w
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end
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# invoke --
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# This procedure is called when the user clicks on a demo description.
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# It is responsible for invoking the demonstration.
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#
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# Arguments:
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# index - The index of the character that the user clicked on.
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def invoke (txt, index)
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tag = txt.tag_names(index).find{|t| t.kind_of?(String) && t =~ /^demo-/}
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return unless tag
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cursor = txt.cget('cursor')
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txt.cursor('watch')
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Tk.update
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# eval `cat #{tag[5..-1]}.rb`
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eval `cat #{[$demo_dir, tag[5..-1]].join(File::Separator)}.rb`
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Tk.update
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# txt.cursor('xterm')
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|
txt.cursor(cursor)
|
|
|
|
$tag_visited.add("#{index} linestart +1 chars", "#{index} lineend +1 chars")
|
|
end
|
|
|
|
# showStatus --
|
|
#
|
|
# Show the name of the demo program in the status bar. This procedure
|
|
# is called when the user moves the cursor over a demo description.
|
|
#
|
|
|
|
def showStatus (txt, index)
|
|
tag = txt.tag_names(index).find{|t| t.kind_of?(String) && t =~ /^demo-/}
|
|
cursor = txt.cget('cursor')
|
|
unless tag
|
|
$statusBarLabel.configure('text', " ")
|
|
newcursor = 'xterm'
|
|
else
|
|
demoname = tag[5..-1]
|
|
$statusBarLabel.configure('text',
|
|
"Run the \"#{demoname}\" sample program")
|
|
newcursor = 'hand2'
|
|
end
|
|
txt.configure('cursor'=>newcursor) if cursor != newcursor
|
|
end
|
|
|
|
# showCode --
|
|
# This procedure creates a toplevel window that displays the code for
|
|
# a demonstration and allows it to be edited and reinvoked.
|
|
#
|
|
# Arguments:
|
|
# w - The name of the demonstration's window, which can be
|
|
# used to derive the name of the file containing its code.
|
|
|
|
def showCode (demo)
|
|
file = "#{demo}.rb"
|
|
$code_window = nil unless defined? $code_window
|
|
if $code_window == nil || TkWinfo.exist?($code_window) == '0'
|
|
$code_window = TkToplevel.new(nil)
|
|
f = TkFrame.new($code_window)
|
|
TkButton.new(f) {
|
|
text "Dismiss"
|
|
command proc{
|
|
$code_window.destroy
|
|
$code_window = nil
|
|
}
|
|
}.pack('side'=>'left', 'expand'=>'yes', 'pady'=>2)
|
|
TkButton.new(f) {
|
|
text "Rerun Demo"
|
|
command proc{eval($code_text.get('1.0','end'))}
|
|
}.pack('side'=>'left', 'expand'=>'yes', 'pady'=>2)
|
|
# f.pack('side'=>'bottom', 'expand'=>'yes', 'fill'=>'x')
|
|
f.pack('side'=>'bottom', 'fill'=>'x')
|
|
|
|
if $tk_version =~ /^4\.[01]/
|
|
s = TkScrollbar.new($code_window, 'orient'=>'vertical')
|
|
$code_text = TkText.new($code_window) {
|
|
height 40
|
|
setgrid 'yes'
|
|
yscrollcommand proc{|first,last| s.set first,last}
|
|
}
|
|
s.command(proc{|*args| $code_text.yview(*args)})
|
|
s.pack('side'=>'right', 'fill'=>'y')
|
|
$code_text.pack('side'=>'left', 'expand'=>'yes', 'fill'=>'both')
|
|
else
|
|
TkFrame.new($code_window) {|f|
|
|
pack('expand'=>'yes', 'fill'=>'both', 'padx'=>1, 'pady'=>1)
|
|
|
|
hs = TkScrollbar.new($code_window, 'highlightthickness'=>0,
|
|
'orient'=>'horizontal')
|
|
vs = TkScrollbar.new($code_window, 'highlightthickness'=>0,
|
|
'orient'=>'vertical')
|
|
$code_text = TkText.new($code_window) {|t|
|
|
height 40
|
|
wrap 'word'
|
|
xscrollcommand proc{|first,last| hs.set first,last}
|
|
yscrollcommand proc{|first,last| vs.set first,last}
|
|
setgrid 'yes'
|
|
highlightthickness 0
|
|
pady 2
|
|
padx 3
|
|
hs.command(proc{|*args| $code_text.xview(*args)})
|
|
vs.command(proc{|*args| $code_text.yview(*args)})
|
|
}
|
|
|
|
$code_text.grid('in'=>f, 'padx'=>1, 'pady'=>1, 'row'=>0, 'column'=>0,
|
|
'rowspan'=>1, 'columnspan'=>1, 'sticky'=>'news')
|
|
vs.grid('in'=>f, 'padx'=>1, 'pady'=>1, 'row'=>0, 'column'=>1,
|
|
'rowspan'=>1, 'columnspan'=>1, 'sticky'=>'news')
|
|
# xs.grid('in'=>f, 'padx'=>1, 'pady'=>1, 'row'=>1, 'column'=>0,
|
|
# 'rowspan'=>1, 'columnspan'=>1, 'sticky'=>'news')
|
|
|
|
# JKC 2001-07-26: segfaults under 1.7.1 (2001-06-19) [i686-linux]
|
|
TkGrid.rowconfigure(f, 0, 'weight'=>1, 'minsize'=>0)
|
|
TkGrid.columnconfigure(f, 0, 'weight'=>1, 'minsize'=>0)
|
|
}
|
|
end
|
|
else
|
|
$code_window.deiconify
|
|
$code_window.raise
|
|
end
|
|
$code_window.title("Demo code: #{file}")
|
|
$code_window.iconname(file)
|
|
# fid = open(file, 'r')
|
|
fid = open([$demo_dir, file].join(File::Separator), 'r')
|
|
$code_text.delete('1.0', 'end')
|
|
#$code_text.insert('1.0', `cat #{file}`)
|
|
$code_text.insert('1.0', fid.read)
|
|
#$code_mark = TkTextMark.new($code_text, '1.0')
|
|
#$code_text.set_insert('1.0')
|
|
TkTextMarkInsert.new($code_text,'1.0')
|
|
fid.close
|
|
end
|
|
|
|
# aboutBox
|
|
#
|
|
# Pops up a message box with an "about" message
|
|
#
|
|
def aboutBox
|
|
Tk.messageBox('icon'=>'info', 'type'=>'ok', 'title'=>'About Widget Demo',
|
|
'message'=>"Ruby/Tk widget demonstration Ver.1.3.2-en\n\n( based on Tk 8.1 Copyright (c) 1996-1997 Sun Microsystems, Inc. )\n\nRunning Version :: Ruby#{VERSION}/Tk#{$tk_version}")
|
|
end
|
|
|
|
################################
|
|
|
|
Tk.mainloop
|
|
|