class Fox::FXGLGroup

A group of OpenGL objects

Constants

FLT_MAX
FLT_MIN

Public Class Methods

Source

# File lib/fox16/glgroup.rb, line 20
def initialize
  super
  @list = []
end

Returns an initialized FXGLGroup instance

Calls superclass method Fox::FXGLObject::new

Public Instance Methods

<< (obj)

Alias for: append

[] (pos)

Source

# File lib/fox16/glgroup.rb, line 35
def [](pos)
  @list[pos]
end

Return child at position pos.

[]= (pos, obj)

Source

# File lib/fox16/glgroup.rb, line 42
def []=(pos, obj)
  @list[pos] = obj
end

Set child at position pos to obj.

append (obj)

Source

# File lib/fox16/glgroup.rb, line 130
def append(obj)
  @list << obj
end

Append child object

Also aliased as: <<

bounds ()

Source

# File lib/fox16/glgroup.rb, line 59
def bounds
  box = nil
  if @list.empty?
    box = FXRangef.new(0.0, 0.0, 0.0, 0.0, 0.0, 0.0)
  else
    box = FXRangef.new(FLT_MAX, -FLT_MAX, FLT_MAX, -FLT_MAX, FLT_MAX, -FLT_MAX)
    @list.each { |obj| box.include!(obj.bounds) }
  end
  box
end

Return bounding box for this group (an FXRangef instance)

canDrag ()

Source

# File lib/fox16/glgroup.rb, line 101
def canDrag
  true
end

Return true if group can be dragged.

clear ()

Source

# File lib/fox16/glgroup.rb, line 161
def clear
  @list.clear
end

Remove all children from this group.

drag (viewer, fx, fy, tx, ty)

Source

# File lib/fox16/glgroup.rb, line 109
def drag(viewer, fx, fy, tx, ty)
  @list.each { |obj| obj.drag(viewer, fx, fy, tx, ty) }
end

Drag group object around in viewer (an FXGLViewer instance), from (fx, fy) to (tx, ty).

draw (viewer)

Source

# File lib/fox16/glgroup.rb, line 73
def draw(viewer)
  @list.each { |obj| obj.draw(viewer) }
end

Draw this group into viewer (an FXGLViewer instance).

each ()

Alias for: each_child

each_child () { |childObject| ... }

Source

# File lib/fox16/glgroup.rb, line 49
def each_child # :yields: childObject
  @list.each { |child| yield child }
  self
end

Iterate over child objects

Also aliased as: each

erase (obj)

Alias for: remove

hit (viewer)

Source

# File lib/fox16/glgroup.rb, line 80
    def hit(viewer)
#     GL.PushName(0xffffffff)
      GL.PushName(1000000)
      @list.each_with_index do |obj, i|
        GL.LoadName(i)
        obj.hit(viewer)
      end
      GL.PopName
    end

Perform hit test in viewer (an FXGLViewer instance).

identify (path)

Source

# File lib/fox16/glgroup.rb, line 93
def identify(path)
  objIndex = path.shift
  @list[objIndex].identify(path)
end

Identify object by means of path.

insert (pos, obj)

Source

# File lib/fox16/glgroup.rb, line 116
def insert(pos, obj)
  raise NotImplementedError
end

Insert child object (obj) at position pos.

prepend (obj)

Source

# File lib/fox16/glgroup.rb, line 123
def prepend(obj)
  @list.unshift(obj)
end

Prepend child object (obj).

remove (obj)

Source

# File lib/fox16/glgroup.rb, line 148
def remove(obj)
  if obj.is_a? FXGLObject
    @list.delete(obj)
  else
    @list.delete_at(obj)
  end
end

If obj is a reference to an FXGLObject in this group, remove the child object from the list. If obj is an integer, remove the child object at that position from the list.

Also aliased as: erase

replace (pos, obj)

Source

# File lib/fox16/glgroup.rb, line 139
def replace(pos, obj)
  @list[pos] = obj
end

Replace child object at position pos with obj.

size ()

Source

# File lib/fox16/glgroup.rb, line 28
def size
  @list.size
end

Return number of objects in this group.