Fresh start

1 files changed, 448 insertions, 0 deletions

diff --git a/jni/ruby/ext/tk/sample/tkextlib/treectrl/outlook-newgroup.rb b/jni/ruby/ext/tk/sample/tkextlib/treectrl/outlook-newgroup.rb
new file mode 100644
index 0000000..3495522
--- /dev/null
+++ b/jni/ruby/ext/tk/sample/tkextlib/treectrl/outlook-newgroup.rb
@@ -0,0 +1,448 @@
+#
+# Demo: Outlook Express newsgroup messages
+#
+def demoOutlookNewsgroup(t)
+  init_pics('outlook-*')
+
+  height = t.font.metrics(:linespace)
+  height = 18 if height < 18
+  t.configure(:itemheight=>height, :selectmode=>:browse, :showlines=>false,
+              :showroot=>false, :showrootbutton=>false, :showbuttons=>true)
+
+  if $Version_1_1_OrLater
+    t.column_create(:image=>@images['outlook-clip'], :tag=>'clip')
+    t.column_create(:image=>@images['outlook-arrow'], :tag=>'arrow')
+    t.column_create(:image=>@images['outlook-watch'], :tag=>'watch')
+    t.column_create(:text=>'Subject', :width=>250, :tag=>'subject')
+    t.column_create(:text=>'From', :width=>150, :tag=>'from')
+    t.column_create(:text=>'Sent', :width=>150, :tag=>'sent')
+    t.column_create(:text=>'Size', :width=>60, :justify=>:right, :tag=>'size')
+  else # TreeCtrl 1.0
+    t.column_configure(0, :image=>@images['outlook-clip'], :tag=>'clip')
+    t.column_configure(1, :image=>@images['outlook-arrow'], :tag=>'arrow')
+    t.column_configure(2, :image=>@images['outlook-watch'], :tag=>'watch')
+    t.column_configure(3, :text=>'Subject', :width=>250, :tag=>'subject')
+    t.column_configure(4, :text=>'From', :width=>150, :tag=>'from')
+    t.column_configure(5, :text=>'Sent', :width=>150, :tag=>'sent')
+    t.column_configure(6, :text=>'Size', :width=>60, :justify=>:right,
+                       :tag=>'size')
+  end
+
+  # Would be nice if I could specify a column -tag too
+  t.treecolumn = 3
+
+  # State for a read message
+  t.state_define('read')
+
+  # State for a message with unread descendants
+  t.state_define('unread')
+
+  t.element_create('elemImg', :image,
+                   :image=>[
+                     @sel_images['outlook-read-2'],
+                          ['selected', 'read', 'unread', '!open'],
+                     @images['outlook-read-2'], ['read', 'unread', '!open'],
+                     @sel_images['outlook-read'], ['selected', 'read'],
+                     @images['outlook-read'], ['read'],
+                     @sel_images['outlook-unread'], ['selected'],
+                     @images['outlook-unread'], []
+                   ])
+  t.element_create('elemTxt', :text, :lines=>1,
+                   :fill=>[@SystemHighlightText, ['selected', 'focus']],
+                   :font=>[
+                     t.font.dup.weight(:bold), ['read', 'unread', '!open'],
+                     t.font.dup.weight(:bold), ['!read']
+                   ])
+  t.element_create('sel.e', :rect, :open=>:e, :showfocus=>true,
+                   :fill=>[
+                     @SystemHighlight, ['selected', 'focus'],
+                     'gray',  ['selected', '!focus']
+                   ])
+  t.element_create('sel.w', :rect, :open=>:w, :showfocus=>true,
+                   :fill=>[
+                     @SystemHighlight, ['selected', 'focus'],
+                     'gray',  ['selected', '!focus']
+                   ])
+  t.element_create('sel.we', :rect, :open=>:we, :showfocus=>true,
+                   :fill=>[
+                     @SystemHighlight, ['selected', 'focus'],
+                     'gray',  ['selected', '!focus']
+                   ])
+
+  # Image + text
+  s = t.style_create('s1')
+  t.style_elements(s, ['sel.e', 'elemImg', 'elemTxt'])
+  t.style_layout(s, 'elemImg', :expand=>:ns)
+  t.style_layout(s, 'elemTxt', :padx=>[2,6], :squeeze=>:x, :expand=>:ns)
+  t.style_layout(s, 'sel.e', :union=>['elemTxt'],
+                 :iexpand=>:nes, :ipadx=>[2,0])
+
+  # Text
+  s = t.style_create('s2.we')
+  t.style_elements(s, ['sel.we', 'elemTxt'])
+  t.style_layout(s, 'elemTxt', :padx=>6, :squeeze=>:x, :expand=>:ns)
+  t.style_layout(s, 'sel.we', :detach=>true, :iexpand=>:es)
+
+  # Text
+  s = t.style_create('s2.w')
+  t.style_elements(s, ['sel.w', 'elemTxt'])
+  t.style_layout(s, 'elemTxt', :padx=>6, :squeeze=>:x, :expand=>:ns)
+  t.style_layout(s, 'sel.w', :detach=>true, :iexpand=>:es)
+
+  # Set default item style
+  if $Version_1_1_OrLater
+    t.defaultstyle = ['', '', '', 's1', 's2.we', 's2.we', 's2.w']
+  end
+
+  msgCnt = 100
+  thread = 0
+
+  @Message = Hash.new{|k, v| k[v] = Hash.new}
+  @Message[:count][0] = 0
+
+  items = [t.index(:root)]
+
+  (1...(msgCnt)).each{|i|
+    item_i = t.item_create
+    item_j = nil
+    j = nil
+    loop {
+      j = rand(i)
+      item_j = items[j]
+      break if j == 0
+      next if t.depth(item_j) == 5
+      next if @Message[:count][@Message[:thread][item_j]] == 15
+      break
+    }
+    t.item_lastchild(item_j, item_i)
+
+    @Message[:read][item_i] = (rand(2) == 0)
+    if j == 0
+      thread += 1
+      @Message[:thread][item_i] = thread
+      @Message[:seconds][item_i] = (Tk::Clock.seconds - rand(500000))
+      @Message[:seconds2][item_i] = @Message[:seconds][item_i]
+      @Message[:count][thread] = 1
+    else
+      @Message[:thread][item_i] = @Message[:thread][item_j]
+      @Message[:seconds][item_i] = (@Message[:seconds2][item_j] + rand(10000))
+      @Message[:seconds2][item_i] = @Message[:seconds][item_i]
+      @Message[:seconds2][item_j] = @Message[:seconds][item_i]
+      @Message[:count][@Message[:thread][item_j]] += 1
+    end
+    items << item_i
+  }
+
+  (1...(msgCnt)).each{|i|
+    item_i = items[i]
+    subject = "This is thread number #{@Message[:thread][item_i]}"
+    from = 'somebody@somewhere.net'
+    sent = Tk::Clock.format(@Message[:seconds][item_i], "%d/%m/%y %I:%M %p")
+    size = "#{1 + rand(10)}KB"
+
+    # This message has been read
+    t.item_state_set(item_i, 'read') if @Message[:read][item_i]
+
+    # This message has unread descendants
+    t.item_state_set(item_i, 'unread')  if anyUnreadDescendants(t, item_i)
+
+    if t.item_numchildren(item_i) > 0
+      if $Version_1_1_OrLater
+        t.item_configure(item_i, :button=>true)
+      else # TreeCtrl 1.0
+        t.item_hasbutton(item_i, true)
+      end
+
+      # Collapse some messages
+      if $Version_1_1_OrLater
+        t.item_collapse(item_i) if rand(2) == 0
+      else # TreeCtrl 1.0
+        t.collapse(item_i) if rand(2) == 0
+      end
+    end
+
+    unless $Version_1_1_OrLater
+      t.item_style_set(item_i, 3, 's1', 4, 's2.we', 5, 's2.we', 6, 's2.w')
+    end
+    t.item_text(item_i, 3, subject, 4, from, 5, sent, 6, size)
+  }
+
+  # Do something when the selection changes
+  t.notify_bind(t, 'Selection',
+                proc{|w|
+                  if w.selection_count == 1
+                    # One item is selected
+                    if @Message[:afterId][:id]
+                      Tk.after_cancel(@Message[:afterId][:id])
+                    end
+                    @Message[:afterId][:item] = w.selection_get[0]
+                    @Message[:afterId][:id] = Tk.after(500, proc{
+                                                         messageReadDelayed(w)
+                                                       })
+                  end
+                }, '%T')
+end
+
+def messageReadDelayed(t)
+  @Message[:afterId].delete(:id)
+  i = @Message[:afterId][:item]
+  return unless t.selection_includes(i)
+
+  # This message is not read
+  unless @Message[:read][i]
+    # Read the message
+    t.item_state_set(i, 'read')
+    @Message[:read][i] = true
+
+    # Check ancestors (except root)
+    t.item_ancestors(i)[0..-2].each{|i2|
+      # This ancestor has no more unread descendants
+      t.item_state_set(i2, '!unread') unless anyUnreadDescendants(t, i2)
+    }
+  end
+end
+
+# Alternate implementation which does not rely on run-time states
+def demoOutlookNewsgroup2(t)
+  init_pics('outlook-*')
+
+  height = t.font.metrics(:linespace)
+  height = 18 if height < 18
+  t.configure(:itemheight=>height, :selectmode=>:browse, :showlines=>false,
+              :showroot=>false, :showrootbutton=>false, :showbuttons=>true)
+
+  if $Version_1_1_OrLater
+    t.column_create(:image=>@images['outlook-clip'], :tag=>'clip')
+    t.column_create(:image=>@images['outlook-arrow'], :tag=>'arrow')
+    t.column_create(:image=>@images['outlook-watch'], :tag=>'watch')
+    t.column_create(:text=>'Subject', :width=>250, :tag=>'subject')
+    t.column_create(:text=>'From', :width=>150, :tag=>'from')
+    t.column_create(:text=>'Sent', :width=>150, :tag=>'sent')
+    t.column_create(:text=>'Size', :width=>60, :justify=>:right, :tag=>'size')
+  else # TreeCtrl 1.0
+    t.column_configure(0, :image=>@images['outlook-clip'], :tag=>'clip')
+    t.column_configure(1, :image=>@images['outlook-arrow'], :tag=>'arrow')
+    t.column_configure(2, :image=>@images['outlook-watch'], :tag=>'watch')
+    t.column_configure(3, :text=>'Subject', :width=>250, :tag=>'subject')
+    t.column_configure(4, :text=>'From', :width=>150, :tag=>'from')
+    t.column_configure(5, :text=>'Sent', :width=>150, :tag=>'sent')
+    t.column_configure(6, :text=>'Size', :width=>60, :justify=>:right,
+                       :tag=>'size')
+  end
+
+  t.treecolumn = 3
+
+  t.element_create('image.unread', :image, :image=>@images['outlook-unread'])
+  t.element_create('image.read', :image, :image=>@images['outlook-read'])
+  t.element_create('image.read2', :image, :image=>@images['outlook-read-2'])
+  t.element_create('text.read', :text, :lines=>1,
+                   :fill=>[@SystemHighlightText, ['selected', 'focus']])
+  t.element_create('text.unread', :text, :lines=>1,
+                   :fill=>[@SystemHighlightText, ['selected', 'focus']],
+                   :font=>t.font.dup.weight(:bold))
+  t.element_create('sel.e', :rect, :open=>:e, :showfocus=>true,
+                   :fill=>[
+                     @SystemHighlight, ['selected', 'focus'],
+                     'gray',  ['selected', '!focus']
+                   ])
+  t.element_create('sel.w', :rect, :open=>:w, :showfocus=>true,
+                   :fill=>[
+                     @SystemHighlight, ['selected', 'focus'],
+                     'gray',  ['selected', '!focus']
+                   ])
+  t.element_create('sel.we', :rect, :open=>:we, :showfocus=>true,
+                   :fill=>[
+                     @SystemHighlight, ['selected', 'focus'],
+                     'gray',  ['selected', '!focus']
+                   ])
+
+  # Image + text
+  s = t.style_create('unread')
+  t.style_elements(s, ['sel.e', 'image.unread', 'text.unread'])
+  t.style_layout(s, 'image.unread', :expand=>:ns)
+  t.style_layout(s, 'text.unread', :padx=>[2,6], :squeeze=>:x, :expand=>:ns)
+  t.style_layout(s, 'sel.e', :union=>['text.unread'],
+                 :iexpand=>:nes, :ipadx=>[2,0])
+
+  # Image + text
+  s = t.style_create('read')
+  t.style_elements(s, ['sel.e', 'image.read', 'text.read'])
+  t.style_layout(s, 'image.read', :expand=>:ns)
+  t.style_layout(s, 'text.read', :padx=>[2,6], :squeeze=>:x, :expand=>:ns)
+  t.style_layout(s, 'sel.e', :union=>['text.read'],
+                 :iexpand=>:nes, :ipadx=>[2,0])
+
+  # Image + text
+  s = t.style_create('read2')
+  t.style_elements(s, ['sel.e', 'image.read2', 'text.unread'])
+  t.style_layout(s, 'image.read2', :expand=>:ns)
+  t.style_layout(s, 'text.unread', :padx=>[2,6], :squeeze=>:x, :expand=>:ns)
+  t.style_layout(s, 'sel.e', :union=>['text.unread'],
+                 :iexpand=>:nes, :ipadx=>[2,0])
+
+  # Text
+  s = t.style_create('unread.we')
+  t.style_elements(s, ['sel.we', 'text.unread'])
+  t.style_layout(s, 'text.unread', :padx=>6, :squeeze=>:x, :expand=>:ns)
+  t.style_layout(s, 'sel.we', :detach=>true, :iexpand=>:es)
+
+  # Text
+  s = t.style_create('read.we')
+  t.style_elements(s, ['sel.we', 'text.read'])
+  t.style_layout(s, 'text.read', :padx=>6, :squeeze=>:x, :expand=>:ns)
+  t.style_layout(s, 'sel.we', :detach=>true, :iexpand=>:es)
+
+  # Text
+  s = t.style_create('unread.w')
+  t.style_elements(s, ['sel.w', 'text.unread'])
+  t.style_layout(s, 'text.unread', :padx=>6, :squeeze=>:x, :expand=>:ns)
+  t.style_layout(s, 'sel.w', :detach=>true, :iexpand=>:es)
+
+  # Text
+  s = t.style_create('read.w')
+  t.style_elements(s, ['sel.w', 'text.read'])
+  t.style_layout(s, 'text.read', :padx=>6, :squeeze=>:x, :expand=>:ns)
+  t.style_layout(s, 'sel.w', :detach=>true, :iexpand=>:es)
+
+  msgCnt = 100
+  thread = 0
+
+  @Message = Hash.new{|k, v| k[v] = Hash.new}
+  @Message[:count][0] = 0
+
+  (1...(msgCnt)).each{|i|
+    t.item_create
+    j = nil
+    loop {
+      j = rand(i)
+      break if j == 0
+      next if t.depth(j) == 5
+      next if @Message[:count][@Message[:thread][j]] == 15
+      break
+    }
+    t.item_lastchild(j, i)
+
+    @Message[:read][i] = (rand(2) == 0)
+    if j == 0
+      thread += 1
+      @Message[:thread][i] = thread
+      @Message[:seconds][i] = (Tk::Clock.seconds - rand(500000))
+      @Message[:seconds2][i] = @Message[:seconds][i]
+      @Message[:count][thread] = 1
+    else
+      @Message[:thread][i] = @Message[:thread][j]
+      @Message[:seconds][i] = (@Message[:seconds2][j] + rand(10000))
+      @Message[:seconds2][i] = @Message[:seconds][i]
+      @Message[:seconds2][j] = @Message[:seconds][i]
+      @Message[:count][@Message[:thread][j]] += 1
+    end
+  }
+
+  (1...(msgCnt)).each{|i|
+    subject = "This is thread number #{@Message[:thread][i]}"
+    from = 'somebody@somewhere.net'
+    sent = Tk::Clock.format(@Message[:seconds][i], "%d/%m/%y %I:%M %p")
+    size = "#{1 + rand(10)}KB"
+    if @Message[:read][i]
+      style = 'read'
+      style2 = 'read2'
+    else
+      style = 'unread'
+      style2 = 'unread2'
+    end
+    t.item_style_set(i, 3, style, 4, "#{style2}.we", 5, "#{style2}.we",
+                     6, "#{style2}.w")
+    t.item_text(i, 3, subject, 4, from, 5, sent, 6, size)
+    if t.item_numchildren(i) > 0
+      t.item_configure(item_i, :button=>true)
+    end
+  }
+
+  # Do something when the selection changes
+  t.notify_bind(t, 'Selection',
+                proc{|w|
+                  if w.selection_count == 1
+                    i = t.selection_get[0]
+                    unless @Message[:read][i]
+                      if t.item_isopen(i) || !anyUnreadDescendants(t, i)
+                        # unread -> read
+                        t.item_style_map(i, 'subject', 'read',
+                                         ['text.unread', 'text.read'])
+                        t.item_style_map(i, 'from', 'read.we',
+                                         ['text.unread', 'text.read'])
+                        t.item_style_map(i, 'sent', 'read.we',
+                                         ['text.unread', 'text.read'])
+                        t.item_style_map(i, 'size', 'read.w',
+                                         ['text.unread', 'text.read'])
+                      else
+                        # unread -> read2
+                        t.item_style_map(i, 'subject', 'read2',
+                                         ['text.unread', 'text.unread'])
+                      end
+
+                      @Message[:read][i] = true
+                      @display_styles_in_item.call(i)
+                    end
+                  end
+                }, '%T')
+
+  t.notify_bind(t, 'Expand-after',
+                proc{|w, i|
+                  if @Messge[:read][i] && anyUnreadDescendants(t, i)
+                    # read2 -> read
+                    t.item_style_map(i, 'subject', 'read',
+                                     ['text.unread', 'text.read'])
+                    # unread -> read
+                    t.item_style_map(i, 'from', 'read.we',
+                                     ['text.unread', 'text.read'])
+                    t.item_style_map(i, 'sent', 'read.we',
+                                     ['text.unread', 'text.read'])
+                    t.item_style_map(i, 'size', 'read.w',
+                                     ['text.unread', 'text.read'])
+                  end
+                }, '%T %I')
+
+  t.notify_bind(t, 'Collapse-after',
+                proc{|w, i|
+                  if @Messge[:read][i] && anyUnreadDescendants(t, i)
+                    # read -> read2
+                    t.item_style_map(i, 'subject', 'read2',
+                                     ['text.read', 'text.unread'])
+                    # read -> unread
+                    t.item_style_map(i, 'from', 'unread.we',
+                                     ['text.read', 'text.unread'])
+                    t.item_style_map(i, 'sent', 'unread.we',
+                                     ['text.read', 'text.unread'])
+                    t.item_style_map(i, 'size', 'unread.w',
+                                     ['text.read', 'text.unread'])
+                  end
+                }, '%T %I')
+
+  (1...(msgCnt)).each{|i|
+    if rand(2) == 0
+      if t.item_numchildren(i) > 0
+        if $Version_1_1_OrLater
+          t.item_collapse(i)
+        else # TreeCtrl 1.0
+          t.collapse(i)
+        end
+      end
+    end
+  }
+end
+
+def anyUnreadDescendants(t, i)
+  itemList = []
+  item = t.item_firstchild(i)
+  itemList.push(item) if item != ''
+
+  while item = itemList.pop
+    return true unless @Message[:read][item]
+
+    item2 = t.item_nextsibling(item)
+    itemList.push(item2) if item2 != ''
+    item2 = t.item_firstchild(item)
+    itemList.push(item2) if item2 != ''
+  end
+  false
+end