Class: Rabbit::Element::Image

Inherits:
Object
  • Object
show all
Includes:
Base, BlockElement, BlockHorizontalCentering, ImageManipulable
Defined in:
lib/rabbit/element/image.rb

Constant Summary

Constants included from GetText

GetText::DOMAIN

Instance Attribute Summary collapse

Attributes included from BlockHorizontalCentering

#oh, #ow, #ox, #oy

Attributes included from Base

#base_h, #base_w, #base_x, #base_y, #default_margin_bottom, #default_margin_left, #default_margin_right, #default_margin_top, #default_padding_bottom, #default_padding_left, #default_padding_right, #default_padding_top, #default_visible, #h, #horizontal_centering, #margin_bottom, #margin_left, #margin_right, #margin_top, #padding_bottom, #padding_left, #padding_right, #padding_top, #parent, #ph, #pw, #px, #py, #real_simulation, #user_property, #vertical_centering, #w, #x, #y

Instance Method Summary collapse

Methods included from BlockHorizontalCentering

#clear_theme, #do_horizontal_centering, #reset_horizontal_centering

Methods included from BlockElement

#adjust_y_padding, #inline_element?

Methods included from Base

#[], #[]=, #add_default_prop, #adjust_x_centering, #adjust_y_margin, #adjust_y_padding, #available_w, #centering_adjusted_height, #centering_adjusted_width, #clear_margin, #clear_padding, #clear_theme, #clone, #compile_element, #compile_horizontal, #default_prop, #dirty!, #dirty?, #do_horizontal_centering, #do_horizontal_centering?, #do_vertical_centering?, #font, #have_tag?, #have_wait_tag?, #hide, #if_dirty, #init_default_margin, #init_default_padding, #init_default_visible, #inline_element?, #inspect, #margin_set, #margin_with, #match?, #next_element, #padding_set, #padding_with, #previous_element, #prop_delete, #prop_get, #prop_set, #prop_value, #reset_horizontal_centering, #restore_x_margin, #restore_x_padding, #setup_margin, #setup_padding, #show, #slide, #substitute_newline, #substitute_text, #text_renderer?, #visible?, #wait

Methods included from Base::DrawHook

#clear_draw_procs, def_draw_hook, def_draw_hooks

Methods included from Utils

arg_list, collect_classes_under_module, collect_modules_under_module, collect_under_module, combination, compute_bottom_y, compute_left_x, compute_right_x, compute_top_y, corresponding_class_under_module, corresponding_module_under_module, corresponding_objects, ensure_time, events_pending_available?, extract_four_way, find_path_in_load_path, init_by_constants_as_default_value, move_to, move_to_bottom_left, move_to_bottom_right, move_to_top_left, move_to_top_right, parse_four_way, process_pending_events, process_pending_events_proc, quartz?, require_files_under_directory_in_load_path, require_safe, split_number_to_minute_and_second, stringify_hash_key, support_console_input?, support_console_output?, syntax_highlighting_debug?, time, to_class_name, unescape_title, windows?

Methods included from GetText

included

Constructor Details

#initialize(filename, prop) ⇒ Image

Returns a new instance of Image.



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# File 'lib/rabbit/element/image.rb', line 25

def initialize(filename, prop)
  @filename = filename
  prop = Utils.stringify_hash_key(prop)
  super(filename, prop)
  normalized_prop = {}
  prop.each do |name, value|
    normalized_prop[name.gsub(/-/, '_')] = value
  end
  prop = normalized_prop
  %w(caption dither_mode).each do |name|
    instance_variable_set("@#{name}", prop[name])
  end
  %w(keep_scale keep_ratio).each do |name|
    unless prop[name].nil?
      self.keep_ratio = true_value?(prop[name])
    end
  end
  %w(as_large_as_possible).each do |name|
    instance_variable_set("@#{name}", true_value?(prop[name]))
  end
  %w(width height
     x_dither y_dither
     normalized_width normalized_height
     relative_width relative_height
     relative_margin_top relative_margin_bottom
     relative_margin_left relative_margin_right
     relative_padding_top relative_padding_bottom
     relative_padding_left relative_padding_right
    ).each do |name|
    begin
      instance_variable_set("@#{name}", prop[name] && Integer(prop[name]))
    rescue ArgumentError
      raise InvalidImageSizeError.new(filename, name, prop[name])
    end
  end

  setup_draw_parameters(prop)
  resize(@width, @height)
end

Instance Attribute Details

#caption ⇒ Object (readonly)

Returns the value of attribute caption.



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# File 'lib/rabbit/element/image.rb', line 17

def caption
  @caption
end

#filename ⇒ Object (readonly)

Returns the value of attribute filename.



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# File 'lib/rabbit/element/image.rb', line 16

def filename
  @filename
end

#normalized_height ⇒ Object (readonly)

Returns the value of attribute normalized_height.



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# File 'lib/rabbit/element/image.rb', line 18

def normalized_height
  @normalized_height
end

#normalized_width ⇒ Object (readonly)

Returns the value of attribute normalized_width.



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# File 'lib/rabbit/element/image.rb', line 18

def normalized_width
  @normalized_width
end

#relative_height ⇒ Object (readonly)

Returns the value of attribute relative_height.



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# File 'lib/rabbit/element/image.rb', line 19

def relative_height
  @relative_height
end

#relative_margin_bottom ⇒ Object (readonly)

Returns the value of attribute relative_margin_bottom.



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# File 'lib/rabbit/element/image.rb', line 20

def relative_margin_bottom
  @relative_margin_bottom
end

#relative_margin_left ⇒ Object (readonly)

Returns the value of attribute relative_margin_left.



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# File 'lib/rabbit/element/image.rb', line 21

def relative_margin_left
  @relative_margin_left
end

#relative_margin_right ⇒ Object (readonly)

Returns the value of attribute relative_margin_right.



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# File 'lib/rabbit/element/image.rb', line 21

def relative_margin_right
  @relative_margin_right
end

#relative_margin_top ⇒ Object (readonly)

Returns the value of attribute relative_margin_top.



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# File 'lib/rabbit/element/image.rb', line 20

def relative_margin_top
  @relative_margin_top
end

#relative_padding_bottom ⇒ Object (readonly)

Returns the value of attribute relative_padding_bottom.



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# File 'lib/rabbit/element/image.rb', line 22

def relative_padding_bottom
  @relative_padding_bottom
end

#relative_padding_left ⇒ Object (readonly)

Returns the value of attribute relative_padding_left.



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# File 'lib/rabbit/element/image.rb', line 23

def relative_padding_left
  @relative_padding_left
end

#relative_padding_right ⇒ Object (readonly)

Returns the value of attribute relative_padding_right.



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# File 'lib/rabbit/element/image.rb', line 23

def relative_padding_right
  @relative_padding_right
end

#relative_padding_top ⇒ Object (readonly)

Returns the value of attribute relative_padding_top.



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# File 'lib/rabbit/element/image.rb', line 22

def relative_padding_top
  @relative_padding_top
end

#relative_width ⇒ Object (readonly)

Returns the value of attribute relative_width.



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# File 'lib/rabbit/element/image.rb', line 19

def relative_width
  @relative_width
end

Instance Method Details

#_compile ⇒ Object 



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# File 'lib/rabbit/element/image.rb', line 106

alias _compile compile

#as_large_as_possible? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rabbit/element/image.rb', line 124

def as_large_as_possible?
  @as_large_as_possible
end

#compile(canvas, x, y, w, h) ⇒ Object 



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# File 'lib/rabbit/element/image.rb', line 111

def compile(canvas, x, y, w, h)
  super
  adjust_size(canvas, @x, @y, @w, @h)
end

#compile_for_horizontal_centering(canvas, x, y, w, h) ⇒ Object 



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# File 'lib/rabbit/element/image.rb', line 107

def compile_for_horizontal_centering(canvas, x, y, w, h)
  _compile(canvas, x, y, w, h)
end

#dither_mode ⇒ Object 



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# File 'lib/rabbit/element/image.rb', line 88

def dither_mode
  @dither_mode ||= "normal"
  mode_name = "DITHER_#{@dither_mode.upcase}"
  if Gdk::RGB.const_defined?(mode_name)
    Gdk::RGB.const_get(mode_name)
  else
    Gdk::RGB::DITHER_NORMAL
  end
end

#draw_element(canvas, x, y, w, h, simulation) ⇒ Object 



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# File 'lib/rabbit/element/image.rb', line 65

def draw_element(canvas, x, y, w, h, simulation)
  draw_image(canvas, x, y, w, h, simulation)
end

#height ⇒ Object 



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# File 'lib/rabbit/element/image.rb', line 120

def height
  super + @padding_top + @padding_bottom
end

#text ⇒ Object 



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# File 'lib/rabbit/element/image.rb', line 69

def text
  @caption.to_s
end

#to_html(generator) ⇒ Object 



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# File 'lib/rabbit/element/image.rb', line 77

def to_html(generator)
  src = generator.save_pixbuf(pixbuf, File.basename(@filename))
  html = "<img "
  if @caption
    alt = generator.h(@caption)
    html << "title=\"#{alt}\" alt=\"#{alt}\" "
  end
  html << "src=\"#{src}\" />"
  html
end

#to_rd ⇒ Object 



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# File 'lib/rabbit/element/image.rb', line 73

def to_rd
  text
end

#width ⇒ Object 



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# File 'lib/rabbit/element/image.rb', line 116

def width
  super + @padding_left + @padding_right
end

#x_dither ⇒ Object 



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# File 'lib/rabbit/element/image.rb', line 98

def x_dither
  @x_dither || 0
end

#y_dither ⇒ Object 



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# File 'lib/rabbit/element/image.rb', line 102

def y_dither
  @y_dither || 0
end