summaryrefslogtreecommitdiffstats
path: root/qtruby/rubylib/examples/qt-examples/checklists/checklists.rb
blob: 9c428c12c0f732c4f2f0185957d94732a25bf109 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
require 'Qt'

class CheckLists < TQt::Widget
	slots 'copy1to2()', 'copy2to3()'

	# Constructor
	#
	# Create all child widgets of the CheckList Widget
	def initialize
		super()

		lay = TQt::HBoxLayout.new(self)
		lay.setMargin(5)

		# create a widget which layouts its childs in a column
		vbox1 = TQt::VBoxLayout.new(lay)
		vbox1.setMargin(5)

		# First child: a Label
		vbox1.addWidget(TQt::Label.new('Check some items!', self))

		# Second child: the ListView
		@lv1 = TQt::ListView.new(self)
		vbox1.addWidget(@lv1)
		@lv1.addColumn('Items')
		@lv1.setRootIsDecorated(true)

		# create a list with 4 ListViewItems which will be parent items of other ListViewItems
		parentList = Array.new


		parentList.push(TQt::ListViewItem.new(@lv1, 'Parent Item 1'))
		parentList.push(TQt::ListViewItem.new(@lv1, 'Parent Item 2'))
		parentList.push(TQt::ListViewItem.new(@lv1, 'Parent Item 3'))
		parentList.push(TQt::ListViewItem.new(@lv1, 'Parent Item 4'))

		item = 0
		num = 1
		# go through the list of parent items...
		parentList.each {|item|
			item.setOpen(true)
			# ...and create 5 checkable child ListViewItems for each parent item
			for i in 1..5
				str = sprintf('%s. Child of Parent %s', i, num)
				TQt::CheckListItem.new(item, str, TQt::CheckListItem.CheckBox)
			end
			num = num + 1
		}

		# Create another widget for layouting
		tmp = TQt::VBoxLayout.new(lay)
		tmp.setMargin(5)

		# create a pushbutton
		copy1 = TQt::PushButton.new('  ->  ', self)
		tmp.addWidget(copy1)
		copy1.setMaximumWidth(copy1.sizeHint.width)
		# connect the TQ_SIGNAL clicked() of the pushbutton with the TQ_SLOT copy1to2()
		connect(copy1, TQ_SIGNAL('clicked()'), self, TQ_SLOT('copy1to2()'))

		# another widget for layouting
		vbox2 = TQt::VBoxLayout.new(lay)
		vbox2.setMargin(5)

		# and another label
		vbox2.addWidget(TQt::Label.new('Check one item!', self))

		# create the second listview
		@lv2 = TQt::ListView.new(self)
		vbox2.addWidget(@lv2)
		@lv2.addColumn('Items')
		@lv2.setRootIsDecorated(true)

		# another widget needed for layouting only
		tmp = TQt::VBoxLayout.new(lay)
		tmp.setMargin(5)

		# create another pushbutton...
		copy2 = TQt::PushButton.new('  ->  ', self)
		lay.addWidget( copy2 )
		copy2.setMaximumWidth(copy2.sizeHint.width)
		# ...and connect its clicked() TQ_SIGNAL to the copy2to3() TQ_SLOT
		connect(copy2, TQ_SIGNAL('clicked()'), self, TQ_SLOT('copy2to3()'))

		tmp = TQt::VBoxLayout.new(lay)
		tmp.setMargin(5)

		# and create a label which will be at the right of the window
		@label = TQt::Label.new('No Item yet...', self)
		tmp.addWidget(@label)
	end

	# TQ_SLOT copy1to2()
	#
	# Copies all checked ListViewItems from the first ListView to
	# the second one, and inserts them as Radio-ListViewItem.
	def copy1to2
		@lv2.clear
		it = TQt::ListViewItemIterator.new(@lv1)
		# Insert first a controller Item into the second ListView. Always if Radio-ListViewItems
		# are inserted into a Listview, the parent item of these MUST be a controller Item!
		item = TQt::CheckListItem.new(@lv2, 'Controller', TQt::CheckListItem::Controller );
		item.setOpen(true);

		# iterate through the first ListView...
		while (it.current)
			# ...check state of childs, and...
			if ( it.current.parent )
				#  ...if the item is checked...
				if (it.current.isOn)
					# ...insert a Radio-ListViewItem with the same text into the second ListView
					TQt::CheckListItem.new(item, it.current.text(0), TQt::CheckListItem::RadioButton)
				end
			end
			it += 1
		end

		if (item.firstChild)
			item.firstChild.setOn(true)
		end
	end


	# TQ_SLOT copy2to3()
	#
	# Copies the checked item of the second ListView into the
	# Label at the right.
	def copy2to3
		# create an iterator which operates on the second ListView
		it = TQt::ListViewItemIterator.new(@lv2)

		@label.setText('No Item checked')

		# iterate through the second ListView...
		while (it.current)
			# ...check state of childs, and...
			if ( it.current.parent)
				# ...if the item is checked...
				if (it.current.isOn)
					# ...set the text of the item to the label
					@label.setText(it.current.text(0))
				end
			end
			it += 1
		end
	end
end