class Rabbit::Renderer::Base

# File lib/rabbit/renderer/base.rb, line 50
def initialize(canvas)
  super()
  @canvas = canvas
  @font_families = nil
  @base_width = nil
  @base_height = nil
  @paper_width = nil
  @paper_height = nil
  @slides_per_page = 1
  @margin_left = nil
  @margin_right = nil
  @margin_top = nil
  @margin_bottom = nil
  @page_margin_left = nil
  @page_margin_right = nil
  @page_margin_top = nil
  @page_margin_bottom = nil
  @whiteout = false
  @blackout = false
  @adjustment_x = 0
  @adjustment_y = 0
  @foreground = nil
  @background = nil
  @progress_foreground = nil
  @progress_background = nil
  @graffiti_color = nil
  @graffiti_line_width = nil
  @draw_scaled_image = true
  clean
end

# File lib/rabbit/renderer/base.rb, line 286
def add_gesture_action(sequence, action, &block)
end

# File lib/rabbit/renderer/base.rb, line 209
def blackouting?
  @blackout
end

# File lib/rabbit/renderer/base.rb, line 263
def can_undo_graffiti?
  false
end

# File lib/rabbit/renderer/base.rb, line 283
def change_graffiti_color
end

# File lib/rabbit/renderer/base.rb, line 189
def clean
  dirty_count_clean
end

# File lib/rabbit/renderer/base.rb, line 193
def clean_if_dirty
  clean if dirty?
end

# File lib/rabbit/renderer/base.rb, line 136
def clear_slide
  current = @canvas.current_slide
  current.clear_waiting if current
end

# File lib/rabbit/renderer/base.rb, line 197
def clear_theme
  init_color
  clear_keys
  clear_progress_color
  clear_graffiti_config
  clear_gesture_actions
end

# File lib/rabbit/renderer/base.rb, line 182
def confirm
  true
end

# File lib/rabbit/renderer/base.rb, line 170
def create_pango_context
  Pango::Context.new
end

# File lib/rabbit/renderer/base.rb, line 178
def display?
  false
end

# File lib/rabbit/renderer/base.rb, line 146
def each_slide_pixbuf
  canvas = offscreen_canvas
  previous_index = canvas.current_index
  pre_to_pixbuf(canvas.n_slides)
  canceled = false
  canvas.slides.each_with_index do |slide, i|
    if !to_pixbufing(i) or !yield(slide, canvas.to_pixbuf(i), i)
      canceled = true
      break
    end
  end
  post_to_pixbuf(canceled)
  canvas.move_to_if_can(previous_index)
  canvas.activate("Quit") if canvas != @canvas
end

# File lib/rabbit/renderer/base.rb, line 267
def expand_hole
end

# File lib/rabbit/renderer/base.rb, line 97
def font_families
  if @font_families.nil? or @font_families.empty?
    @font_families = create_pango_context.families
  end
  @font_families
end

# File lib/rabbit/renderer/base.rb, line 248
def gl_available?
  @canvas.use_gl? and gl_supported?
end

# File lib/rabbit/renderer/base.rb, line 255
def graffiti_mode?
  false
end

# File lib/rabbit/renderer/base.rb, line 259
def have_graffiti?
  false
end

# File lib/rabbit/renderer/base.rb, line 223
def hiding?
  @blackout or @whiteout
end

# File lib/rabbit/renderer/base.rb, line 230
def info_window_showing?
  false
end

# File lib/rabbit/renderer/base.rb, line 244
def magnifying?
  false
end

# File lib/rabbit/renderer/base.rb, line 104
def make_color(color)
  return color if color.is_a?(Color)
  if color.nil?
    @foreground
  else
    Color.parse(color)
  end
end

# File lib/rabbit/renderer/base.rb, line 270
def narrow_hole
end

# File lib/rabbit/renderer/base.rb, line 162
def offscreen_canvas
  if offscreen_renderer?
    @canvas
  else
    make_canvas_with_offscreen_renderer
  end
end

# File lib/rabbit/renderer/base.rb, line 93
def page_margin_bottom
  @page_margin_bottom || 0
end

# File lib/rabbit/renderer/base.rb, line 81
def page_margin_left
  @page_margin_left || 0
end

# File lib/rabbit/renderer/base.rb, line 85
def page_margin_right
  @page_margin_right || 0
end

# File lib/rabbit/renderer/base.rb, line 89
def page_margin_top
  @page_margin_top || 0
end

# File lib/rabbit/renderer/base.rb, line 252
def post_init_gui
end

# File lib/rabbit/renderer/base.rb, line 292
def post_terminal
end

# File lib/rabbit/renderer/base.rb, line 289
def pre_terminal
end

# File lib/rabbit/renderer/base.rb, line 116
def print(&block)
  if printable?
    do_print(&block)
  else
    canvas = make_canvas_with_printable_renderer
    pre_print(canvas.n_slides)
    canceled = false
    canvas.print do |i|
      result = printing(i)
      canceled = !result
      result
    end
    post_print(canceled)
    canvas.activate("Quit")
  end
end

# File lib/rabbit/renderer/base.rb, line 174
def printable?
  false
end

# File lib/rabbit/renderer/base.rb, line 133
def redraw
end

# File lib/rabbit/renderer/base.rb, line 141
def reset_adjustment
  @adjustment_x = 0
  @adjustment_y = 0
end

# File lib/rabbit/renderer/base.rb, line 273
def search_slide(forward=true)
end

# File lib/rabbit/renderer/base.rb, line 279
def searching?
  false
end

# File lib/rabbit/renderer/base.rb, line 113
def set_font_resolution(context)
end

# File lib/rabbit/renderer/base.rb, line 186
def setup_event(area)
end

# File lib/rabbit/renderer/base.rb, line 237
def spotlighting?
  false
end

# File lib/rabbit/renderer/base.rb, line 276
def stop_slide_search
end

# File lib/rabbit/renderer/base.rb, line 218
def toggle_blackout
  @blackout = !@blackout
  @whiteout = false
end

# File lib/rabbit/renderer/base.rb, line 227
def toggle_info_window
end

# File lib/rabbit/renderer/base.rb, line 241
def toggle_magnifier
end

# File lib/rabbit/renderer/base.rb, line 234
def toggle_spotlight
end

# File lib/rabbit/renderer/base.rb, line 213
def toggle_whiteout
  @blackout = false
  @whiteout = !@whiteout
end

# File lib/rabbit/renderer/base.rb, line 205
def whiteouting?
  @whiteout
end

# File lib/rabbit/renderer/base.rb, line 404
def clear_gesture_actions
  init_gesture_actions
end

# File lib/rabbit/renderer/base.rb, line 384
def clear_graffiti_config
  @graffiti_color = nil
  @graffiti_line_width = nil
end

# File lib/rabbit/renderer/base.rb, line 381
def clear_keys
end

# File lib/rabbit/renderer/base.rb, line 389
def clear_progress_color
  @progress_foreground = nil
  @progress_background = nil
end

# File lib/rabbit/renderer/base.rb, line 300
def do_print(&block)
  pre_print(@canvas.n_slides)
  canceled = false
  @canvas.slides.each_with_index do |slide, i|
    @canvas.move_to_if_can(i)
    current_slide = @canvas.current_slide
    current_slide.flush
    current_slide.draw(@canvas)
    if block and !block.call(i)
      canceled = true
      break
    end
  end
  post_print(canceled)
end

# File lib/rabbit/renderer/base.rb, line 398
def init_color
  @background_color = "white"
  @foreground = make_color("black")
  @background = make_color(@background_color)
end

# File lib/rabbit/renderer/base.rb, line 408
def init_gesture_actions
end

# File lib/rabbit/renderer/base.rb, line 394
def invert_y(y)
  height - y
end

# File lib/rabbit/renderer/base.rb, line 340
def make_canvas_with_offscreen_renderer
  make_canvas_with_renderer(Offscreen) do |canvas|
    setup_size(canvas)
    setup_3d(canvas)
  end
end

# File lib/rabbit/renderer/base.rb, line 327
def make_canvas_with_printable_renderer
  renderer = Renderer::Printer
  make_canvas_with_renderer(renderer) do |canvas|
    canvas.filename = @canvas.filename
    setup_size(canvas)
    setup_margin(canvas)
    setup_page_margin(canvas)
    setup_paper_size(canvas)
    setup_3d(canvas)
    canvas.slides_per_page = @canvas.slides_per_page
  end
end

# File lib/rabbit/renderer/base.rb, line 316
def make_canvas_with_renderer(renderer)
  canvas = Canvas.new(renderer)
  yield canvas
  canvas.apply_theme(@canvas.theme_name)
  @canvas.source_force_modified(true) do |source|
    canvas.parse(source)
  end
  canvas.toggle_index_mode if @canvas.index_mode?
  canvas
end

# File lib/rabbit/renderer/base.rb, line 375
def not_support_method(name)
  format = _("%s does not support: %s")
  msg = format % [self.class.name, name]
  Rabbit.logger.warn(msg)
end

# File lib/rabbit/renderer/base.rb, line 296
def offscreen_renderer?
  false
end

# File lib/rabbit/renderer/base.rb, line 371
def setup_3d(canvas)
  canvas.use_gl = @canvas.use_gl?
end

# File lib/rabbit/renderer/base.rb, line 352
def setup_margin(canvas)
  canvas.margin_left = @canvas.margin_left
  canvas.margin_right = @canvas.margin_right
  canvas.margin_top = @canvas.margin_top
  canvas.margin_bottom = @canvas.margin_bottom
end

# File lib/rabbit/renderer/base.rb, line 359
def setup_page_margin(canvas)
  canvas.page_margin_left = @canvas.page_margin_left
  canvas.page_margin_right = @canvas.page_margin_right
  canvas.page_margin_top = @canvas.page_margin_top
  canvas.page_margin_bottom = @canvas.page_margin_bottom
end

# File lib/rabbit/renderer/base.rb, line 366
def setup_paper_size(canvas)
  canvas.paper_width = @canvas.paper_width
  canvas.paper_height = @canvas.paper_height
end

# File lib/rabbit/renderer/base.rb, line 347
def setup_size(canvas)
  canvas.width = @canvas.width
  canvas.height = @canvas.height
end