* lib/tkextlib/blt/component.rb: cannot create elements except

  default type of element.
* lib/tkextlib/blt/barchart.rb: ditto.
* lib/tkextlib/blt/graph.rb: ditto.
* lib/tkextlib/blt/stripchart.rb: ditto.
* lib/tkextlib/blt/component.rb: axis command option gets
  proper object type of arguments.
* sample/tkextlib/blt/calendar.rb: new sample.
* sample/tkextlib/blt/pareto.rb: ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@8208 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

4 files changed, 207 insertions, 0 deletions

diff --git a/ext/tk/sample/tkextlib/blt/calendar.rb b/ext/tk/sample/tkextlib/blt/calendar.rb
new file mode 100644
index 0000000000..4fc6d64d9e
--- /dev/null
+++ b/ext/tk/sample/tkextlib/blt/calendar.rb
@@ -0,0 +1,117 @@
+#!/usr/bin/env ruby
+
+require 'tk'
+require 'tkextlib/blt'
+
+require 'date'
+
+dir = File.join(File.dirname(File.expand_path(__FILE__)), 'images')
+file = File.join(dir, 'chalk.gif')
+active = File.join(dir, 'rain.gif')
+
+texture1 = TkPhotoImage.new(:file=>file)
+texture2 = TkPhotoImage.new(:file=>active)
+
+TkOption.add('*Tile', texture1)
+
+TkOption.add('*HighlightThickness', 0)
+TkOption.add('*calendar.weekframe*Tile', texture2)
+TkOption.add('*Calendar.Label.borderWidth', 0)
+TkOption.add('*Calendar.Label.relief', :sunken)
+TkOption.add('*Calendar.Frame.borderWidth', 2)
+TkOption.add('*Calendar.Frame.relief', :raised)
+TkOption.add('*Calendar.Label.font', 'Helvetica 11')
+TkOption.add('*Calendar.Label.foreground', 'navyblue')
+TkOption.add('*button.foreground', 'navyblue')
+TkOption.add('*background', 'grey85')
+TkOption.add('*Label.ipadX', 200)
+
+TkOption.add('*tile', texture2)
+
+class BLT_Calendar_sample
+  @@monthInfo = [
+    nil,  # dummy
+    ['January', 31], 
+    ['February', 28], 
+    ['March', 31], 
+    ['April', 30], 
+    ['May', 31], 
+    ['June', 30], 
+    ['July', 31], 
+    ['August', 31], 
+    ['Septembar', 30], 
+    ['October', 31], 
+    ['November', 30], 
+    ['December', 31]
+  ]
+
+  @@abbrDays = [ 'Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat' ]
+
+  def initialize()
+    today = Date.today
+
+    if TkComm.bool(Tk.info(:commands, '.calendar'))
+      Tk.destroy('.calendar')
+    end
+    cal = Tk::BLT::Tile::Frame.new(:widgetname=>'.calendar', 
+                                   :classname=>'Calendar', 
+                                   :width=>'3i', :height=>'3i')
+
+    mon = Tk::BLT::Tile::Label.new(cal, :font=>'Courier 14 bold', 
+                                   :text=>"#{@@monthInfo[today.month][0]} " + 
+                                          "#{today.year}")
+    Tk::BLT::Table.add(cal, mon, [1, 0], :cspan=>7, :pady=>10)
+
+    week_f = Tk::BLT::Tile::Frame.new(cal, :widgetname=>'weekframe', 
+                                      :relief=>:sunken, :borderwidth=>1)
+    Tk::BLT::Table.add(cal, week_f, [2, 0], :columnspan=>7, :fill=>:both)
+
+    @@abbrDays.each_with_index{|dayName, idx|
+      Tk::BLT::Table.add(cal, 
+                         Tk::BLT::Tile::Label.new(cal, :text=>dayName, 
+                                                  :font=>'Helvetica 12'), 
+                         [2, idx], :pady=>2, :padx=>2)
+    }
+
+    Tk::BLT::Table.itemconfigure(cal, 'c*', 'r2', :pad=>4)
+
+    numDays = @@monthInfo[today.month][1]
+    week = 0
+    cnt = 1
+
+    wkday = today.wday - ((today.day - 1) % 7)
+    wkday += 7 if wkday < 0
+
+    while cnt <= numDays
+      Tk::BLT::Table.add(cal, 
+                         Tk::BLT::Tile::Label.new(cal, :text=>cnt){
+                           self.configure(:borderwidth=>1, 
+                                          :relief=>:sunken) if cnt == today.day
+                         }, 
+                         [week+3, wkday], :fill=>:both, :ipadx=>10, :ipady=>4)
+      cnt += 1
+      wkday += 1
+      if wkday == 7
+        week += 1
+        wkday = 0
+      end
+    end
+
+    Tk::BLT::Tile::Frame.new(cal, :borderwidth=>1, :relief=>:sunken){|f|
+      Tk::BLT::Table.add(f, 
+                         Tk::BLT::Tile::Button.new(f, :widgetname=>'button', 
+                                                   :command=>proc{exit}, 
+                                                   :borderwidth=>2, 
+                                                   :text=>'Quit'), 
+                         :padx=>4, :pady=>4)
+      Tk::BLT::Table.add(cal, f, [week+4, 5], :cspan=>2, :pady=>4)
+    }
+
+    Tk::BLT::Table.add(Tk.root, cal, :fill=>:both)
+    Tk::BLT::Table.itemconfigure(cal, 'r0', :resize=>:none)
+  end
+end
+
+BLT_Calendar_sample.new
+
+Tk.mainloop
diff --git a/ext/tk/sample/tkextlib/blt/images/chalk.gif b/ext/tk/sample/tkextlib/blt/images/chalk.gif
new file mode 100644
index 0000000000..30d29a7221
--- /dev/null
+++ b/ext/tk/sample/tkextlib/blt/images/chalk.gif
diff --git a/ext/tk/sample/tkextlib/blt/images/rain.gif b/ext/tk/sample/tkextlib/blt/images/rain.gif
new file mode 100644
index 0000000000..d7bb417939
--- /dev/null
+++ b/ext/tk/sample/tkextlib/blt/images/rain.gif
diff --git a/ext/tk/sample/tkextlib/blt/pareto.rb b/ext/tk/sample/tkextlib/blt/pareto.rb
new file mode 100644
index 0000000000..94d5f3f97f
--- /dev/null
+++ b/ext/tk/sample/tkextlib/blt/pareto.rb
@@ -0,0 +1,90 @@
+#!/usr/bin/env ruby
+
+require 'tk'
+require 'tkextlib/blt'
+
+# Example of a pareto chart.
+#
+# The pareto chart mixes line and bar elements in the same graph.
+# Each processing operating is represented by a bar element.  The
+# total accumulated defects is displayed with a single line element.
+b = Tk::BLT::Barchart.new(:title=>'Defects Found During Inspection', 
+                          :font=>'Helvetica 12', :plotpady=>[12, 4], 
+                          :width=>'6i', :height=>'5i')
+Tk::BLT::Table.add(Tk.root, b, :fill=>:both)
+
+data = [
+  ["Spot Weld",  82,   'yellow'], 
+  ["Lathe",      49,   'orange'], 
+  ["Gear Cut",   38,   'green'], 
+  ["Drill",      24,   'blue'], 
+  ["Grind",      17,   'red'], 
+  ["Lapping",    12,   'brown'], 
+  ["Press",       8,   'purple'], 
+  ["De-burr",     4,   'pink'], 
+  ["Packaging",   3,   'cyan'], 
+  ["Other",      12,   'magenta']
+]
+
+# Create an X-Y graph line element to trace the accumulated defects.
+b.line_create('accum', :label=>'', :symbol=>:none, :color=>'red')
+
+# Define a bitmap to be used to stipple the background of each bar.
+pattern1 = Tk::BLT::Bitmap.define([ [4, 4], [1, 2, 4, 8] ])
+
+# For each process, create a bar element to display the magnitude.
+count = 0
+sum   = 0
+ydata = [0]
+xdata = [0]
+labels = []
+
+data.each{|label, value, color|
+  count += 1
+  b.element_create(label, :xdata=>count, :ydata=>value, :foreground=>color, 
+                   :relief=>:solid, :borderwidth=>1, :stipple=>pattern1, 
+                   :background=>'lightblue')
+  labels[count] = label
+  # Get the total number of defects.
+  sum += value
+  ydata << sum
+  xdata << count
+}
+
+# Configure the coordinates of the accumulated defects, 
+# now that we know what they are.
+b.element_configure('accum', :xdata=>xdata, :ydata=>ydata)
+
+# Add text markers to label the percentage of total at each point.
+xdata.zip(ydata){|x, y|
+  percent = (y * 100.0) / sum
+  if x == 0
+    text = ' 0%'
+  else
+    text = '%.1f' % percent
+  end
+  b.marker_create(:text, :coords=>[x, y], :text=>text, :font=>'Helvetica 10', 
+                  :foreground=>'red4', :anchor=>:center, :yoffset=>-5)
+}
+
+# Display an auxillary y-axis for percentages.
+b.axis_configure('y2', :hide=>false, :min=>0.0, :max=>100.0, 
+                 :title=>'Percentage')
+
+# Title the y-axis
+b.axis_configure('y', :title=>'Defects')
+
+# Configure the x-axis to display the process names, instead of numbers.
+b.axis_configure('x', :title=>'Process', :rotate=>90, :subdivisions=>0, 
+                 :command=>proc{|w, val|
+                   val = val.round
+                   labels[val]? labels[val]: val
+                  })
+
+# No legend needed.
+b.legend_configure(:hide=>true)
+
+# Configure the grid lines.
+b.gridline_configure(:mapx=>:x, :color=>'lightblue')
+
+Tk.mainloop