Class: GlimR::Image

Inherits:
Widget show all
Defined in:
lib/glimr/widgets/image.rb

Overview

Image is a quad matching a texture’s dimensions.

Direct Known Subclasses

Label, StretchableImage

Constant Summary

Constants included from Layoutable

Layoutable::DIMENSIONS

Instance Attribute Summary collapse

Attributes inherited from Widget

#focused, #hover

Attributes included from Layoutable

#align, #valign

Attributes inherited from Model

#geometry, #material, #shader, #texture, #transform

Attributes inherited from SceneObject

#children, #drawables, #mtime, #parent, #viewport

Attributes included from EventListener

#event_listeners, #listener_count

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Widget

#activate, #blur, #click, #focus, for, #key_down, #key_up, #lock, #mouse_down, #mouse_move, #mouse_out, #mouse_over, #mouse_up, #unlock

Methods included from Layoutable

#attach, #children_change, #constant_size?, #detach, #expand!, #expand?, #expand_height, #expand_to_max_height!, #expand_to_max_width!, #expand_width, #fit_height!, #fit_to_children!, #fit_width!, #free_height, #free_width, #full_depth, #full_height, #full_width, #inner_depth, #inner_height, #inner_width, #inspect, #layout, #layoutable_children, #margin, #margin=, #max_height=, #max_width=, #min_height=, #min_width=, #padding, #padding=, #parent=, #size_changing, size_changing_accessor, #tell_children_of_size_change, #x=, #y=

Methods inherited from Model

#absolute_transform, #apply, #inspect, #pop_state, #push_state

Methods inherited from SceneObject

#<<, #absolute_geometry, #absolute_material, #absolute_shader, #absolute_texture, #absolute_transform, #absolute_transform_for_drawing, #add_drawables, #apply, #attach, #clone, #detach, #detach_self, #inspect, #pop_state, #push_state, #remove_drawables, #render, #replace_node, #root, #touch!, #visible

Methods included from EventListener

#add_event_listener, #decrement_listener_count, #dispatch_event, #event_root, #increment_listener_count, #method_missing, #multicast_event, #process_event, #remove_event_listener

Constructor Details

#initialize(*a, &b) ⇒ Image

Returns a new instance of Image.



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# File 'lib/glimr/widgets/image.rb', line 29

def initialize(*a,&b)
  super
  if @image
    load(@image)
  end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class GlimR::EventListener

Instance Attribute Details

#bound ⇒ Object

Returns the value of attribute bound.



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# File 'lib/glimr/widgets/image.rb', line 20

def bound
  @bound
end

#image ⇒ Object

Returns the value of attribute image.



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# File 'lib/glimr/widgets/image.rb', line 20

def image
  @image
end

Class Method Details

.load(filename) ⇒ Object 



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# File 'lib/glimr/widgets/image.rb', line 10

def self.load(filename)
  image = new
  image.load(filename)
  image
end

.load_theme(filename) ⇒ Object 



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# File 'lib/glimr/widgets/image.rb', line 16

def self.load_theme(filename)
  load(GlimR.theme + filename)
end

Instance Method Details

#create_colors ⇒ Object 



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# File 'lib/glimr/widgets/image.rb', line 57

def create_colors
  nil
end

#create_normals ⇒ Object 



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# File 'lib/glimr/widgets/image.rb', line 69

def create_normals
  [0,0,1, 0,0,1, 0,0,1, 0,0,1]
end

#create_texcoords ⇒ Object 



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# File 'lib/glimr/widgets/image.rb', line 73

def create_texcoords
  hb = @texture.height / @texture.bound.to_f
  wb = @texture.width / @texture.bound.to_f
  [0,0, wb,0, wb,hb, 0,hb]
end

#create_vertices ⇒ Object 



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# File 'lib/glimr/widgets/image.rb', line 61

def create_vertices
  size_changing do
    @min_width = @width = @texture.width
    @min_height = @height = @texture.height
  end
  [0,0,0, @texture.width,0,0, @texture.width,@texture.height,0, 0,@texture.height,0]
end

#default_config ⇒ Object 



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# File 'lib/glimr/widgets/image.rb', line 22

def default_config
  super.merge(
    :fit_children => false,
    :image => nil
  )
end

#load(filename, update_geo = true) ⇒ Object 



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# File 'lib/glimr/widgets/image.rb', line 41

def load(filename,update_geo=true)
  @texture.load(filename)
  update_geometry if update_geo
end

#load_theme(filename, update_geo = true) ⇒ Object 



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# File 'lib/glimr/widgets/image.rb', line 46

def load_theme(filename,update_geo=true)
  load(GlimR.theme + filename, update_geo)
end

#texture=(t) ⇒ Object 



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# File 'lib/glimr/widgets/image.rb', line 36

def texture= t
  super
  update_geometry
end

#update_geometry ⇒ Object 



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# File 'lib/glimr/widgets/image.rb', line 50

def update_geometry
  @geometry.vertices = create_vertices
  @geometry.normals = create_normals
  @geometry.colors = create_colors
  @geometry.texcoords = create_texcoords
end