* ext/tk/lib/tk.rb (_callback_entry_class?): add for checking whether

  a class is available for a callback entry.
* ext/tk/lib/tk.rb (after_cancel): add Tk.after_cancel(afterID) method.
* ext/tk/lib/tk.rb (array2tk_list): change from private module method
  of TkComm to public module method.
* ext/tk/lib/tk.rb (cget): add check that slot argument is not empty string.
* ext/tk/lib/tk.rb (configinfo): ditto.
* ext/tk/lib/tk/itemconfig.rb (itemcget): add check that slot argument
  is not empty string.
* ext/tk/lib/tk/itemconfig.rb (itemconfiginfo): ditto.
* ext/tk/lib/tk/entry.rb: add TkEntry#icursor and icursor= (alias of
  cursor and cursor= method).
* ext/tk/lib/tk/font.rb: improve font treatment when the font name is
  empty string.
* ext/tk/lib/tk/variable.rb: add :variable, :window and :procedure type.
* ext/tk/lib/tk/variable.rb: improve treatment of array-type tkvariable.
* ext/tk/lib/tkextlib/blt.rb: add commands for zooming.
* ext/tk/lib/tkextlib/blt/*: bug fix.
* ext/tk/lib/tkextlib/treectrl/tktreectrl.rb: bug fix and add methods
  to call TreeCtrl commands for bindings.
* ext/tk/sample/tkextlib/blt/*: new sample scritps.
* ext/tk/sample/tkextlib/treectrl/*: ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@8195 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 63 insertions, 0 deletions

diff --git a/ext/tk/sample/tkextlib/blt/graph7a.rb b/ext/tk/sample/tkextlib/blt/graph7a.rb
new file mode 100644
index 0000000000..a014f72fc7
--- /dev/null
+++ b/ext/tk/sample/tkextlib/blt/graph7a.rb
@@ -0,0 +1,63 @@
+#!/usr/bin/env ruby
+require 'tk'
+require 'tkextlib/blt'
+
+file = File.join(File.dirname(File.expand_path(__FILE__)), 
+                 'images', 'buckskin.gif')
+bgTexture = TkPhotoImage.new(:file=>file)
+
+TkOption.add('*Graph.Tile', bgTexture)
+TkOption.add('*Label.Tile', bgTexture)
+TkOption.add('*Frame.Tile', bgTexture)
+TkOption.add('*Htext.Tile', bgTexture)
+TkOption.add('*TileOffset', 0)
+TkOption.add('*HighlightThickness',   0)
+TkOption.add('*Element.ScaleSybols',  false)
+TkOption.add('*Element.Smooth',       :linear)
+TkOption.add('*activeLine.Color',     'yellow4')
+TkOption.add('*activeLine.Fill',      'yellow')
+TkOption.add('*activeLine.LineWidth', 0)
+TkOption.add('*Element.Pixels',       3)
+TkOption.add('*Graph.halo',           '7i')
+
+if Tk.root.winfo_screenvisual != 'staticgray'
+  TkOption.add('*print.background', 'yellow')
+  TkOption.add('*quit.background',  'red')
+end
+
+length = 250000
+graph = Tk::BLT::Graph.new(:title=>"Scatter Plot\n#{length} points")
+graph.xaxis_configure(:loose=>false, :title=>'X Axis Label')
+graph.yaxis_configure(:title=>'Y Axis Label')
+graph.legend_configure(:activerelief=>:sunken, :background=>'')
+
+Tk::BLT::Table.add(Tk.root, graph, [0,0], :fill=>:both)
+
+v_x = Tk::BLT::Vector.new(length)
+v_y = Tk::BLT::Vector.new(length)
+v_x.expr("random(#{v_x})")
+v_y.expr("random(#{v_y})")
+v_x.sort(v_y)
+
+plot = Tk::BLT::PlotComponent::Element.new(graph, :symbol=>:square, 
+                                           :color=>'green4', :fill=>'green2', 
+                                           :linewidth=>0, :outlinewidth=>1, 
+                                           :pixels=>4, :label=>'plot', 
+                                           :xdata=>v_x, :ydata=>v_y)
+
+Tk.root.minsize(0, 0)
+
+#graph.zoom_stack
+#graph.crosshairs
+#graph.active_legend
+#graph.closest_point
+Tk::BLT.zoom_stack(graph)
+Tk::BLT.crosshairs(graph)
+Tk::BLT.active_legend(graph)
+Tk::BLT.closest_point(graph)
+
+Tk::BLT::Busy.hold(graph)
+Tk.update
+Tk::BLT::Busy.release(graph)
+
+Tk.mainloop