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ruby--ruby/ext/tk/sample/tkextlib/treectrl/random.rb
ocean 6143edbbe0 * ext/tk/sample/tkextlib/treectrl/random.rb: fixed typo. (drop node outside of
widget, or reenter widget while draggging)


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@8280 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2005-04-08 14:30:20 +00:00

508 lines
15 KiB
Ruby

#
def random_N
@RandomN[0] || 500
end
#
# Demo: random N items
#
def demoRandom(t)
init_pics('folder-*', 'small-*')
height = t.font.metrics(:linespace)
height = 18 if height < 18
t.configure(:itemheight=>height, :selectmode=>:extended,
:showroot=>true, :showrootbutton=>true, :showbuttons=>true,
:showlines=>true, :scrollmargin=>16,
:xscrolldelay=>[500, 50], :yscrolldelay=>[500, 50])
if $Version_1_1_OrLater
t.column_create(:expand=>true, :text=>'Item',
:itembackground=>['#e0e8f0', []], :tag=>'item')
t.column_create(:text=>'Parent', :justify=>:center,
:itembackground=>['gray90', []], :tag=>'parent')
t.column_create(:text=>'Depth', :justify=>:center,
:itembackground=>['linen', []], :tag=>'depth')
else # TreeCtrl 1.0
t.column_configure(0, :expand=>true, :text=>'Item',
:itembackground=>['#e0e8f0', []], :tag=>'item')
t.column_configure(1, :text=>'Parent', :justify=>:center,
:itembackground=>['gray90', []], :tag=>'parent')
t.column_configure(2, :text=>'Depth', :justify=>:center,
:itembackground=>['linen', []], :tag=>'depth')
end
t.element_create('e1', :image, :image=>[
@images['folder-open'], ['open'],
@images['folder-closed'], []
])
t.element_create('e2', :image, :image=>@images['small-file'])
t.element_create('e3', :text,
:fill=>[@SystemHighlightText, ['selected', 'focus']])
t.element_create('e4', :text, :fill=>'blue')
t.element_create('e6', :text)
t.element_create('e5', :rect, :showfocus=>true,
:fill=>[
@SystemHighlight, ['selected', 'focus'],
'gray', ['selected', '!focus']
])
s = t.style_create('s1')
t.style_elements(s, ['e5', 'e1', 'e3', 'e4'])
t.style_layout(s, 'e1', :padx=>[0,4], :expand=>:ns)
t.style_layout(s, 'e3', :padx=>[0,4], :expand=>:ns)
t.style_layout(s, 'e4', :padx=>[0,6], :expand=>:ns)
t.style_layout(s, 'e5', :union=>['e3'], :iexpand=>:ns, :ipadx=>2)
s = t.style_create('s2')
t.style_elements(s, ['e5', 'e2', 'e3'])
t.style_layout(s, 'e2', :padx=>[0,4], :expand=>:ns)
t.style_layout(s, 'e3', :padx=>[0,4], :expand=>:ns)
t.style_layout(s, 'e5', :union=>['e3'], :iexpand=>:ns, :ipadx=>2)
s = t.style_create('s3')
t.style_elements(s, ['e6'])
t.style_layout(s, 'e6', :padx=>6, :expand=>:ns)
@Priv[:sensitive, t] = [
[:item, 's1', 'e5', 'e1', 'e3'],
[:item, 's2', 'e5', 'e2', 'e3']
]
@Priv[:dragimage, t] = [
[:item, 's1', 'e1', 'e3'],
[:item, 's2', 'e2', 'e3']
]
clicks = Tk::Clock.clicks
items = [ t.index(:root) ]
(1...(random_N())).each{|i|
item_i = t.item_create
item_j = nil
loop {
j = rand(i)
item_j = items[j]
break if t.depth(item_j) < 5
}
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
if rand(2) == 0
t.item_lastchild(item_j, item_i)
else
t.item_firstchild(item_j, item_i)
end
items << item_i
}
puts "created #{random_N() - 1} items in #{Tk::Clock.clicks - clicks} clicks"
clicks = Tk::Clock.clicks
(0...(random_N())).each{|i|
item_i = items[i]
numChildren = t.item_numchildren(item_i)
if numChildren > 0
if $Version_1_1_OrLater
t.item_configure(item_i, :button=>true)
else # TreeCtrl 1.0
t.item_hasbutton(item_i, true)
end
t.item_style_set(item_i, 0, 's1', 1, 's3', 2, 's3')
t.item_complex(item_i,
[ ['e3', {:text=>"Item #{i}"}],
['e4', {:text=>"(#{numChildren})"}] ],
[ ['e6', {:text=>"#{t.item_parent(item_i)}"}] ],
[ ['e6', {:text=>"#{t.depth(item_i)}"}] ])
else
t.item_style_set(item_i, 1, 's3', 2, 's3', 0, 's2')
t.item_complex(item_i,
[ ['e3', {:text=>"Item #{i}"}] ],
[ ['e6', {:text=>"#{t.item_parent(item_i)}"}] ],
[ ['e6', {:text=>"#{t.depth(item_i)}"}] ])
end
}
puts "configured #{random_N()} items in #{Tk::Clock.clicks - clicks} clicks"
treeCtrlRandom = TkBindTag.new
treeCtrlRandom.bind('Double-ButtonPress-1',
proc{|w, x, y|
Tk::TreeCtrl::BindCallback.doubleButton1(w, x, y)
Tk.callback_break
}, '%W %x %y')
treeCtrlRandom.bind('Control-ButtonPress-1',
proc{|w, x, y|
@Priv['selectMode'] = :toggle
randomButton1(w, x, y)
Tk.callback_break
}, '%W %x %y')
treeCtrlRandom.bind('Shift-ButtonPress-1',
proc{|w, x, y|
@Priv['selectMode'] = :add
randomButton1(w, x, y)
Tk.callback_break
}, '%W %x %y')
treeCtrlRandom.bind('ButtonPress-1',
proc{|w, x, y|
@Priv['selectMode'] = :set
randomButton1(w, x, y)
Tk.callback_break
}, '%W %x %y')
treeCtrlRandom.bind('Button1-Motion',
proc{|w, x, y|
randomMotion1(w, x, y)
Tk.callback_break
}, '%W %x %y')
treeCtrlRandom.bind('Button1-Leave',
proc{|w, x, y|
randomLeave1(w, x, y)
Tk.callback_break
}, '%W %x %y')
treeCtrlRandom.bind('ButtonRelease-1',
proc{|w, x, y|
randomRelease1(w, x, y)
Tk.callback_break
}, '%W %x %y')
t.bindtags = [ t, treeCtrlRandom, Tk::TreeCtrl, t.winfo_toplevel, :all ]
end
def randomButton1(t, x, y)
t.set_focus
id = t.identify(x, y)
puts id.inspect
@Priv['buttonMode'] = ''
# Click outside any item
if id.empty?
t.selection_clear
# Click in header
elsif id[0] == 'header'
Tk::TreeCtrl::BindCallback.buttonPress1(t, x, y)
# Click in item
else
where, item, arg1, arg2, arg3, arg4 = id
case arg1
when 'button'
if $Version_1_1_OrLater
t.item_toggle(item)
else # TreeCtrl 1.0
t.toggle(item)
end
when 'line'
if $Version_1_1_OrLater
t.item_toggle(arg2)
else # TreeCtrl 1.0
t.toggle(arg2)
end
when 'column'
ok = false
# Clicked an element
if id.length == 6
column = id[3]
e = id[5]
@Priv.list_element(:sensitive, t).each{|lst|
c, s, *eList = TkComm.simplelist(lst)
next if column != t.column_index(c)
next if t.item_style_set(item, c) != s
next if eList.find{|le| le == e} == nil
ok = true
break
}
end
unless ok
t.selection_clear
return
end
@Priv[:drag, :motion] = 0
@Priv[:drag, :x] = t.canvasx(x)
@Priv[:drag, :y] = t.canvasy(y)
@Priv[:drop] = ''
if @Priv['selectMode'] == 'add'
Tk::TreeCtrl::BindCallback.beginExtend(t, item)
elsif @Priv['selectMode'] == 'toggle'
Tk::TreeCtrl::BindCallback.beginToggle(t, item)
elsif ! t.selection_includes(item)
Tk::TreeCtrl::BindCallback.beginSelect(t, item)
end
t.activate(item)
if t.selection_includes(item)
@Priv['buttonMode'] = 'drag'
end
end
end
end
def randomMotion1(t, x, y)
case @Priv['buttonMode']
when 'resize', 'header'
Tk::TreeCtrl::BindCallback.motion1(t, x, y)
when 'drag'
randomAutoScanCheck(t, x, y)
randomMotion(t, x, y)
end
end
def randomMotion(t, x, y)
case @Priv['buttonMode']
when 'resize', 'header'
Tk::TreeCtrl::BindCallback.motion1(t, x, y)
when 'drag'
# Detect initial mouse movement
unless @Priv.bool_element(:drag, :motion)
@Priv[:selection] = t.selection_get
@Priv[:drop] = ''
t.dragimage_clear
# For each selected item, add 2nd and 3rd elements of
# column "item" to the dragimage
@Priv.list_element(:selection).each{|i|
@Priv.list_element(:dragimage,t).each{|lst|
c, s, *eList = TkComm.simplelist(lst)
if t.item_style_set(i, c) == s
t.dragimage_add(i, c, *eList)
end
}
}
@Priv[:drag,:motion] = true
end
# Find the item under the cursor
cursor = 'X_cursor'
drop = ''
id = t.identify(x, y)
ok = false
if !id.empty? && id[0] == 'item' && id.length == 6
item = id[1]
column = id[3]
e = id[5]
@Priv.list_element(:sensitive,t).each{|lst|
c, s, *eList = TkComm.simplelist(lst)
next if column != t.column_index(c)
next if t.item_style_set(item, c) != s
next unless eList.find{|val| val.to_s == e.to_s}
ok = true
break
}
ok = true if @Priv.list_element(:sensitive,t).find{|val| TkComm.simplelist(val).index(e)}
end
if ok
# If the item is not in the pre-drag selection
# (i.e. not being dragged) see if we can drop on it
unless @Priv.list_element(:selection).find{|val| val.to_s == item.to_s}
drop = item
# We can drop if dragged item isn't an ancestor
@Priv.list_element(:selection).each{|item2|
if t.item_isancestor(item2, item)
drop = ''
break
end
}
if drop != ''
x1, y1, x2, y2 = t.item_bbox(drop)
if y < y1 + 3
cursor = 'top_side'
@Priv[:drop,:pos] = 'prevsibling'
elsif y >= y2 - 3
cursor = 'bottom_side'
@Priv[:drop,:pos] = 'nextsibling'
else
cursor = ''
@Priv[:drop,:pos] = 'lastchild'
end
end
end
end
t[:cursor] = cursor if t[:cursor] != cursor
# Select the item under the cursor (if any) and deselect
# the previous drop-item (if any)
t.selection_modify(drop, @Priv[:drop])
@Priv[:drop] = drop
# Show the dragimage in its new position
x = t.canvasx(x) - @Priv.numeric_element(:drag,:x)
y = t.canvasx(y) - @Priv.numeric_element(:drag,:y)
t.dragimage_offset(x, y)
t.dragimage_configure(:visible=>true)
end
end
def randomLeave1(t, x, y)
# This is called when I do ButtonPress-1 on Unix for some reason,
# and buttonMode is undefined.
return unless @Priv.exist?('buttonMode')
case @Priv['buttonMode']
when 'header'
Tk::TreeCtrl::BindCallback.leave1(t, x, y)
end
end
def randomRelease1(t, x, y)
case @Priv['buttonMode']
when 'resize', 'header'
Tk::TreeCtrl::BindCallback.release1(t, x, y)
when 'drag'
Tk::TreeCtrl::BindCallback.autoScanCancel(t)
t.dragimage_configure(:visible=>false)
t.selection_modify('', @Priv[:drop])
t[:cursor] = ''
if @Priv[:drop] != ''
randomDrop(t, @Priv[:drop], @Priv.list_element(:selection),
@Priv[:drop, :pos])
end
end
@Priv['buttonMode'] = ''
end
def randomDrop(t, target, src, pos)
parentList = []
case pos
when 'lastchild'
parent = target
when 'prevsibling'
parent = t.item_parent(target)
when 'nextsibling'
parent = t.item_parent(target)
end
src.each{|item|
# Ignore any item whose ancestor is also selected
ignore = false
t.item_ancestors(item).each{|ancestor|
if src.find{|val| val.to_s == ancestor.to_s}
ignore = true
break
end
}
next if ignore
# Update the old parent of this moved item later
unless parentList.find{|val| val.to_s == item.to_s}
parentList << t.item_parent(item)
end
# Add to target
t.__send__("item_#{pos}", target, item)
# Update text: parent
t.item_element_configure(item, 'parent', 'e6', :text=>parent)
# Update text: depth
t.item_element_configure(item, 'depth', 'e6', :text=>t.depth(item))
# Recursively update text: depth
itemList = []
item = t.item_firstchild(item)
itemList << item if item != ''
while item = itemList.pop
t.item_element_configure(item, 'depth', 'e6', :text=>t.depth(item))
item2 = t.item_nextsibling(item)
itemList << item2 if item2 != ''
item2 = t.item_firstchild(item)
itemList << item2 if item2 != ''
end
}
# Update items that lost some children
parentList.each{|item|
numChildren = t.item_numchildren(item)
if numChildren == 0
if $Version_1_1_OrLater
t.item_configure(item, :button=>false)
else # TreeCtrl 1.0
t.item_hasbutton(item, false)
end
t.item_style_map(item, 'item', 's2', ['e3', 'e3'])
else
t.item_element_configure(item, 'item', 'e4', :text=>"(#{numChildren})")
end
}
# Update the target that gained some children
if t.item_style_set(parent, 0) != 's1'
if $Version_1_1_OrLater
t.item_configure(parent, :button=>true)
else # TreeCtrl 1.0
t.item_hasbutton(parent, true)
end
t.item_style_map(parent, 'item', 's1', ['e3', 'e3'])
end
numChildren = t.item_numchildren(parent)
t.item_element_configure(parent, 'item', 'e4', :text=>"(#{numChildren})")
end
# Same as TreeCtrl::AutoScanCheck, but calls RandomMotion and
# RandomAutoScanCheckAux
def randomAutoScanCheck(t, x, y)
x1, y1, x2, y2 = t.contentbox
margin = t.winfo_pixels(t.scrollmargin)
if x < x1 + margin || x >= x2 - margin || y < y1 + margin || y >= y2 - margin
if ! @Priv.exist?(:autoscan, :afterId, t)
if y >= y2 - margin
t.yview(:scroll, 1, :units)
delay = t.yscrolldelay
elsif y < y1 + margin
t.yview(:scroll, -1, :units)
delay = t.yscrolldelay
elsif x >= x2 - margin
t.xview(:scroll, 1, :units)
delay = t.xscrolldelay
elsif x < x1 + margin
t.xview(:scroll, -1, :units)
delay = t.xscrolldelay
end
if @Priv.exist?(:autoscan, :scanning, t)
delay = delay[1] if delay.kind_of?(Array)
else
delay = delay[0] if delay.kind_of?(Array)
@Priv[:autoscan, :scanning, t] = true
end
case @Priv['buttonMode']
when 'drag', 'marquee'
randomMotion(t, x, y)
end
@Priv[:autoscan, :afterId, t] =
Tk.after(delay, proc{ randomAutoScanCheckAux(t) })
end
return
end
Tk::TreeCtrl::BindCallback.autoScanCancel(t)
end
def randomAutoScanCheckAux(t)
@Priv.unset(:autoscan, :afterId, t)
x = t.winfo_pointerx - t.winfo_rootx
y = t.winfo_pointery - t.winfo_rooty
randomAutoScanCheck(t, x, y)
end
#
# Demo: random N items, button images
#
def demoRandom2(t)
demoRandom(t)
init_pics('mac-*')
t.configure(:openbuttonimage=>@images['mac-collapse'],
:closedbuttonimage=>@images['mac-expand'],
:showlines=>false)
end