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10484e5c95
after scripts [ruby-dev:25479]: NULL current namespce when deleting Tk interpreter [ruby-talk:126225] * ext/tcltklib/extconf.rb: bug fix; TCL_ENABLE_THREAD flag is inverted [ruby-talk:126360] * ext/tcltklib/extconf.rb: add yet another native-thread check * ext/tk/tkutil.c: fix SEGV bug; NULL string pointer when finalize Ruby interpreter * ext/tk/lib/multi-tk.rb: avoid warning for deleted safeTk ip frame * ext/tk/lib/tk/bindtag.rb: bug fix; new method of named bindtag doesn't return the created object [ruby-dev:25479] * ext/tk/lib/tk/menu.rb: bug on treating arguments [ruby-dev:25479] * ext/tk/lib/tk.rb: bug fix; cannot accept a callback ID string for a command argument [ruby-dev:25479] * ext/tk/lib/multi-tk.rb: ditto * ext/tk/lib/tk/*.rb: ditto * ext/tk/lib/tkextlib/*.rb: ditto * ext/tk/sample/demos-jp/anilabel.rb: new demo script * ext/tk/sample/demos-en/anilabel.rb: ditto * ext/tk/sample/tkHTML/ss.rb: local variable scope bug fix [ruby-dev:25479] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7821 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
406 lines
8.6 KiB
Ruby
406 lines
8.6 KiB
Ruby
#!/usr/bin/env ruby
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#
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# This script implements the "ss" application. "ss" implements
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# a presentation slide-show based on HTML slides.
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#
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require 'tk'
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require 'tkextlib/tkHTML'
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root = TkRoot.new(:title=>'HTML File Viewer', :iconname=>'HV')
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fswin = nil
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html = nil
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html_fs = nil
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hotkey = {}
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file = ARGV[0]
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# These are images to use with the actual image specified in a
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# "<img>" markup can't be found.
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#
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biggray = TkPhotoImage.new(:data=><<'EOD')
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R0lGODdhPAA+APAAALi4uAAAACwAAAAAPAA+AAACQISPqcvtD6OctNqLs968+w+G4kiW5omm
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6sq27gvH8kzX9o3n+s73/g8MCofEovGITCqXzKbzCY1Kp9Sq9YrNFgsAO///
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EOD
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smgray = TkPhotoImage.new(:data=><<'EOD')
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R0lGODdhOAAYAPAAALi4uAAAACwAAAAAOAAYAAACI4SPqcvtD6OctNqLs968+w+G4kiW5omm
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6sq27gvH8kzX9m0VADv/
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EOD
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#
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# A font chooser routine.
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#
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# html[:fontcommand] = pick_font
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pick_font = proc{|size, attrs|
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# puts "FontCmd: #{size} #{attrs}"
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[ ((attrs =~ /fixed/)? 'courier': 'charter'),
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(12 * (1.2**(size.to_f - 4.0))).to_i,
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((attrs =~ /italic/)? 'italic': 'roman'),
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((attrs =~ /bold/)? 'bold': 'normal') ].join(' ')
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}
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# This routine is called to pick fonts for the fullscreen view.
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#
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baseFontSize = 24
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pick_font_fs = proc{|size, attrs|
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# puts "FontCmd: #{size} #{attrs}"
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[ ((attrs =~ /fixed/)? 'courier': 'charter'),
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(baseFontSize * (1.2**(size.to_f - 4.0))).to_i,
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((attrs =~ /italic/)? 'italic': 'roman'),
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((attrs =~ /bold/)? 'bold': 'normal') ].join(' ')
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}
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#
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#
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hyper_cmd = proc{|*args|
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puts "HyperlinkCommand: #{args.inspect}"
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}
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# This routine is called to run an applet
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#
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applet_arg = TkVarAccess.new_hash('AppletArg')
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run_applet = proc{|size, w, arglist|
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applet_arg.value = Hash[*simplelist(arglist)]
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return unless applet_arg.key?('src')
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src = html.remove(applet_arg['src'])
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applet_arg['window'] = w
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applet_arg['fontsize'] = size
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begin
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Tk.load_tclscript(src)
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rescue => e
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puts "Applet error: #{e.message}"
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end
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}
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#
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#
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form_cmd = proc{|n, cmd, *args|
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}
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#
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#
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images = {}
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old_imgs = {}
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big_imgs = {}
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#
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#
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move_big_image = proc{|b|
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return unless big_imgs.key?(b)
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b.copy(big_imgs[b])
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big_imgs[b].delete
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big_imgs.delete(b)
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}
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image_cmd = proc{|hs, *args|
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fn = args[0]
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if old_imgs.key?(fn)
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return (images[fn] = old_imgs.delete(fn))
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end
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begin
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img = TkPhotoImage.new(:file=>fn)
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rescue
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return ((hs)? smallgray: biggray)
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end
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if hs
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img2 = TkPhotoImage.new
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img2.copy(img, :subsample=>[2,2])
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img.delete
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img = img2
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end
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if img.width * img.height > 20000
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b = TkPhotoImage.new(:width=>img.width, :height=>img.height)
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big_imgs[b] = img
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img = b
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Tk.after_idle(proc{ move_big_image.call(b) })
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end
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images[fn] = img
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img
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}
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#
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# This routine is called for every <SCRIPT> markup
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#
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script_cmd = proc{|*args|
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# puts "ScriptCmd: #{args.inspect}"
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}
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# This routine is called for every <APPLET> markup
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#
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applet_cmd = proc{|w, arglist|
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# puts "AppletCmd: w=#{w} arglist=#{arglist}"
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#TkLabel.new(w, :text=>"The Applet #{w}", :bd=>2, :relief=>raised)
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}
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# This binding fires when there is a click on a hyperlink
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#
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href_binding = proc{|w, x, y|
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lst = w.href(x, y)
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unless lst.empty?
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process_url.call(lst)
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end
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}
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#
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#
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last_dir = Dir.pwd
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load_file = nil
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sel_load = proc{
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filetypes = [
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['Html Files', ['.html', '.htm']],
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['All Files', '*']
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]
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f = Tk.getOpenFile(:initialdir=>last_dir, :filetypes=>filetypes)
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if f != ''
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load_file.call(f)
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last_dir = File.dirname(f)
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end
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}
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# Clear the screen.
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#
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clear_screen = proc{
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if html_fs && html_fs.exist?
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w = html_fs
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else
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w = html
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end
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w.clear
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old_imgs.clear
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big_imgs.clear
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hotkey.clear
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images.each{|k, v| old_imgs[k] = v }
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images.clear
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}
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# Read a file
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#
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read_file = proc{|name|
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begin
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fp = open(name, 'r')
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ret = fp.read(File.size(name))
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rescue
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ret = nil
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fp = nil
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Tk.messageBox(:icon=>'error', :message=>"fail to open '#{name}'",
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:type=>:ok)
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ensure
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fp.close if fp
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end
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ret
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}
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# Process the given URL
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#
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process_url = proc{|url|
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case url[0]
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when /^file:/
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load_file.call(url[0][5..-1])
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when /^exec:/
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Tk.ip_eval(url[0][5..-1].tr('\\', ' '))
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else
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load_file.call(url[0])
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end
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}
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# Load a file into the HTML widget
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#
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last_file = ''
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load_file = proc{|name|
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return unless (doc = read_file.call(name))
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clear_screen.call
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last_file = name
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if html_fs && html_fs.exist?
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w = html_fs
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else
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w = html
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end
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w.configure(:base=>name)
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w.parse(doc)
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w.configure(:cursor=>'top_left_arrow')
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old_imgs.clear
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}
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# Refresh the current file.
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#
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refresh = proc{|*args|
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load_file.call(last_file) if last_file
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}
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# This routine is called whenever a "<meta>" markup is seen.
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#
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meta = proc{|w, tag, alist|
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v = Hash[*simplelist(alist)]
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if v.kye?('key') && v.key?('href')
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hotkey[v['key']] = w.resolve(v['href'])
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end
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if v.kye?('next')
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hotkey['Down'] =v['next']
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end
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if v.kye?('prev')
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hotkey['Up'] =v['prev']
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end
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if v.kye?('other')
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hotkey['o'] =v['other']
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end
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}
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# Go from full-screen mode back to window mode.
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#
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fullscreen_off = proc{
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fswin.destroy
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root.deiconify
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Tk.update
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root.raise
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html.clipwin.focus
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clear_screen.call
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old_imgs.clear
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refresh.call
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}
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# Go from window mode to full-screen mode.
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#
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fullscreen = proc{
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if fswin && fswin.exist?
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fswin.deiconify
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Tk.update
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fswin.raise
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return
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end
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width = root.winfo_screenwidth
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height = root.winfo_screenheight
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fswin = TkToplevel.new(:overrideredirect=>true,
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:geometry=>"#{width}x#{height}+0+0")
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html_fs = Tk::HTML_Widget.new(fswin, :padx=>5, :pady=>9,
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:formcommand=>form_cmd,
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:imagecommand=>proc{image_cmd.call(0)},
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:scriptcommand=>script_cmd,
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:appletcommand=>applet_cmd,
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:hyperlinkcommand=>hyper_cmd,
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:bg=>'white', :tablerelief=>:raised,
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:appletcommand=>proc{|*args|
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run_applet('big', *args)
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},
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:fontcommand=>pick_font_fs,
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:cursor=>:tcross) {
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pack(:fill=>:both, :expand=>true)
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token_handler('meta', proc{|*args| meta.call(self, *args)})
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}
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clear_screen.call
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old_imgs.clear
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refresh.call
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Tk.update
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html_fs.clipwin.focus
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}
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#
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#
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key_block = false
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key_press = proc{|w, keysym|
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return if key_block
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key_block = true
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Tk.after(250, proc{key_block = false})
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if hotkey.key?(keysym)
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process_url.call(hotkey[keysym])
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end
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case keysym
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when 'Escape'
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if fswin && fswin.exist?
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fullscreen_off.call
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else
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fullscreen.call
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end
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end
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}
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Tk::HTML_Widget::ClippingWindow.bind('1', key_press, '%W Down')
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Tk::HTML_Widget::ClippingWindow.bind('3', key_press, '%W Up')
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Tk::HTML_Widget::ClippingWindow.bind('2', key_press, '%w Down')
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Tk::HTML_Widget::ClippingWindow.bind('KeyPress', key_press, '%W %K')
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############################################
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#
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# Build the half-size view of the page
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#
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menu_spec = [
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[['File', 0],
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['Open', sel_load, 0],
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['Full Screen', fullscreen, 0],
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['Refresh', refresh, 0],
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'---',
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['Exit', proc{exit}, 1]]
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]
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mbar = root.add_menubar(menu_spec)
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html = Tk::HTML_Widget.new(:width=>512, :height=>384,
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:padx=>5, :pady=>9,
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:formcommand=>form_cmd,
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:imagecommand=>proc{|*args|
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image_cmd.call(1, *args)
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},
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:scriptcommand=>script_cmd,
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:appletcommand=>applet_cmd,
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:hyperlinkcommand=>hyper_cmd,
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:fontcommand=>pick_font,
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:appletcommand=>proc{|*args|
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run_applet.call('small', *args)
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},
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:bg=>'white', :tablerelief=>:raised)
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html.token_handler('meta', proc{|*args| meta.call(html, *args)})
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vscr = html.yscrollbar(TkScrollbar.new)
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hscr = html.xscrollbar(TkScrollbar.new)
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Tk.grid(html, vscr, :sticky=>:news)
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Tk.grid(hscr, :sticky=>:ew)
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Tk.root.grid_columnconfigure(0, :weight=>1)
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Tk.root.grid_columnconfigure(1, :weight=>0)
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Tk.root.grid_rowconfigure(0, :weight=>1)
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Tk.root.grid_rowconfigure(1, :weight=>0)
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############################################
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html.clipwin.focus
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# If an arguent was specified, read it into the HTML widget.
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#
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Tk.update
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if file && file != ""
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load_file.call(file)
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end
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############################################
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Tk.mainloop
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