Class: Canis::DefaultTreeRenderer
- Inherits:
-
AbstractTextPadRenderer
- Object
- AbstractTextPadRenderer
- Canis::DefaultTreeRenderer
- Defined in:
- lib/canis/core/widgets/tree.rb
Overview
TODO see how jtable does the renderers and columns stuff.
perhaps we can combine the two but have different methods or some flag that way oter methods can be shared
Constant Summary collapse
- PLUS_PLUS =
"++"
- PLUS_MINUS =
"+-"
- PLUS_Q =
"+?"
Instance Attribute Summary collapse
-
#icon_can_collapse ⇒ Object
Returns the value of attribute icon_can_collapse.
-
#icon_can_expand ⇒ Object
Returns the value of attribute icon_can_expand.
-
#icon_no_children ⇒ Object
Returns the value of attribute icon_no_children.
-
#icon_not_visited ⇒ Object
Returns the value of attribute icon_not_visited.
-
#row_selected_attr ⇒ Object
Returns the value of attribute row_selected_attr.
Attributes inherited from AbstractTextPadRenderer
#attr, #color_pair, #content_cols, #cp, #list, #source
Instance Method Summary collapse
- #content_attrib(att) ⇒ Object
-
#content_colors(fg, bg) ⇒ Object
set fg and bg color of content rows, default is $datacolor (white on black).
-
#initialize(source) ⇒ DefaultTreeRenderer
constructor
source is the textpad or extending widget needed so we can call show_colored_chunks if the user specifies column wise colors.
- #render(pad, lineno, treearraynode) ⇒ Object
Methods inherited from AbstractTextPadRenderer
Constructor Details
#initialize(source) ⇒ DefaultTreeRenderer
source is the textpad or extending widget needed so we can call show_colored_chunks if the user specifies column wise colors
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# File 'lib/canis/core/widgets/tree.rb', line 61 def initialize source @source = source @color = :white @bgcolor = :black @color_pair = $datacolor @attrib = NORMAL @_check_coloring = nil @icon_can_collapse = "+-" @icon_can_expand = "++" @icon_not_visited = "+?" @icon_no_children = "+-" # adding setting column_model auto on 2014-04-10 - 10:53 why wasn;t this here already #tree_model(source.tree_model) end |
Instance Attribute Details
#icon_can_collapse ⇒ Object
Returns the value of attribute icon_can_collapse.
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# File 'lib/canis/core/widgets/tree.rb', line 53 def icon_can_collapse @icon_can_collapse end |
#icon_can_expand ⇒ Object
Returns the value of attribute icon_can_expand.
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# File 'lib/canis/core/widgets/tree.rb', line 53 def @icon_can_expand end |
#icon_no_children ⇒ Object
Returns the value of attribute icon_no_children.
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# File 'lib/canis/core/widgets/tree.rb', line 53 def icon_no_children @icon_no_children end |
#icon_not_visited ⇒ Object
Returns the value of attribute icon_not_visited.
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# File 'lib/canis/core/widgets/tree.rb', line 53 def icon_not_visited @icon_not_visited end |
#row_selected_attr ⇒ Object
Returns the value of attribute row_selected_attr.
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# File 'lib/canis/core/widgets/tree.rb', line 54 def row_selected_attr @row_selected_attr end |
Instance Method Details
#content_attrib(att) ⇒ Object
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# File 'lib/canis/core/widgets/tree.rb', line 82 def content_attrib att @attrib = att end |
#content_colors(fg, bg) ⇒ Object
set fg and bg color of content rows, default is $datacolor (white on black).
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# File 'lib/canis/core/widgets/tree.rb', line 77 def content_colors fg, bg @color = fg @bgcolor = bg @color_pair = get_color($datacolor, fg, bg) end |
#render(pad, lineno, treearraynode) ⇒ Object
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# File 'lib/canis/core/widgets/tree.rb', line 89 def render pad, lineno, treearraynode parent = @source level = treearraynode.level node = treearraynode if parent. node icon = @icon_can_collapse # can collapse else icon = @icon_can_expand # can expand end if node.children.size == 0 icon = @icon_not_visited # either no children or not visited yet if parent. node icon = @icon_no_children # definitely no children, we've visited end end # adding 2 to level, that's the size of icon # XXX FIXME if we put the icon here, then when we scroll right, the icon will show, it shoud not # FIXME we ignore truncation etc on previous level and take the object as is !!! _value = "%*s %s" % [ level+2, icon, node.user_object ] len = _value.length #graphic.printstring r, c, "%-*s" % [len, _value], @color_pair,@attr cp = @color_pair att = @attrib raise "attrib is nil in tree render 104" unless att raise "color pair is nil in tree render 104" unless cp # added for selection, but will crash if selection is not extended !!! XXX if @source.is_row_selected? lineno att = @row_selected_attr || $row_selected_attr # FIXME currentl this overflows into next row end FFI::NCurses.wattron(pad,FFI::NCurses.COLOR_PAIR(cp) | att) FFI::NCurses.mvwaddstr(pad, lineno, 0, _value) FFI::NCurses.wattroff(pad,FFI::NCurses.COLOR_PAIR(cp) | att) end |