module Rabbit::Renderer::Display::DrawingAreaBase

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 50
def initialize(canvas)
  @caching = nil
  @need_reload_theme = false
  super
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 226
def attach_to(window, container=nil, &block)
  super

  init_menu
  init_gesture_actions
  add_widgets_to_container(@container, &block)
  widget.show
  attach_menu(@window)
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 164
def cache_all_slides
  pre_cache_all_slides(@canvas.n_slides)
  canceled = false
  @canvas.slides.each_with_index do |slide, i|
    @canvas.change_current_index(i) do
      compile_slide(slide)
    end
    unless caching_all_slides(i)
      canceled = true
      break
    end
  end
  post_cache_all_slides(canceled)
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 185
def caching_all_slides(i)
  update_progress(i)
  continue = @caching_size == [width, height] &&
    !@canvas.quitted? && !@canvas.applying?
  continue
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 203
def confirm(message)
  confirm_dialog(message) == Gtk::ResponseType::OK
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 236
def detach
  detach_menu(@window)
  widget.hide
  unless @window.destroyed?
    remove_widgets_from_container(@container)
  end

  super
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 264
def draw_slide(slide, simulation, &block)
  super do |*args|
    block.call(*args)
    magnify {block.call(*args)} unless simulation
  end
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 116
def index_mode_off
  super
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 112
def index_mode_on
  super
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 63
def post_apply_theme
  if @need_reload_theme
    @need_reload_theme = false
    reload_theme
  else
    super
    update_menu
  end
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 192
def post_cache_all_slides(canceled)
  end_progress
  @caching = false
  return if @canvas.quitted?
  if canceled
    reload_theme
  else
    @area.queue_draw
  end
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 81
def post_fullscreen
  super
  update_menu
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 91
def post_iconify
  super
  update_menu
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 261
def post_init_gui
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 73
def post_move(old_index, index)
  update_title
  reset_adjustment
  clear_graffiti
  # toggle_graffiti_mode if @graffiti_mode
  super
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 101
def post_parse
  super
  clear_button_handler
  update_title
  update_menu
  if @need_reload_theme
    @need_reload_theme = false
    reload_theme
  end
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 142
def post_print(canceled)
  end_progress
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 159
def post_to_pixbuf(canceled)
  super
  end_progress
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 125
def post_toggle_index_mode
  @canvas.activate("ClearGraffiti")
  update_menu
  update_title
  super
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 86
def post_unfullscreen
  super
  update_menu
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 179
def pre_cache_all_slides(n_slides)
  @caching = true
  @caching_size = [width, height]
  start_progress(n_slides)
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 96
def pre_parse
  super
  update_menu
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 132
def pre_print(n_slides)
  start_progress(n_slides)
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 146
def pre_to_pixbuf(n_slides)
  super
  start_progress(n_slides)
  @pixbufing_size = [width, height]
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 120
def pre_toggle_index_mode
  super
  Utils.process_pending_events
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 136
def printing(i)
  update_progress(i)
  continue = !@canvas.quitted?
  continue
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 215
def reload_source(&callback)
  if @canvas.need_reload_source?
    callback ||= Utils.process_pending_events_proc
    begin
      @canvas.reload_source(callback)
    rescue
      Rabbit.logger.error($!)
    end
  end
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 207
def reload_theme(&callback)
  if @canvas.applying?
    @need_reload_theme = true
  else
    super
  end
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 256
def reset_adjustment
  super
  @area.queue_draw
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 152
def to_pixbufing(i)
  update_progress(i)
  continue = @pixbufing_size == [width, height] &&
    !@canvas.quitted? && !@canvas.applying?
  super or continue
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 251
def toggle_blackout
  super
  @area.queue_draw
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 246
def toggle_whiteout
  super
  @area.queue_draw
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 56
def update_size(width, height)
  super
  @mask = nil
  set_hole
  reload_theme if @surface
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 272
def add_widgets_to_container(container)
  @hbox = Gtk::Box.new(:horizontal)
  @vbox = Gtk::Box.new(:vertical)
  @vbox.pack_start(@area, :expand => true, :fill => true, :padding => 0)
  @hbox.pack_end(@vbox, :expand => true, :fill => true, :padding => 0)
  if block_given?
    yield(container, @hbox)
  else
    container.add(@hbox)
  end
  @hbox.show
  @vbox.show
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 368
def confirm_dialog(message)
  flags = Gtk::Dialog::MODAL | Gtk::Dialog::DESTROY_WITH_PARENT
  dialog_type = Gtk::MessageDialog::INFO
  buttons = Gtk::MessageDialog::BUTTONS_OK_CANCEL
  dialog = Gtk::MessageDialog.new(nil, flags, dialog_type,
                                  buttons, message)
  result = dialog.run
  dialog.destroy
  result
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 304
def draw(widget)
  reload_source unless @caching

  if whiteouting?
    paint("white")
  elsif blackouting?
    paint("black")
  else
    super
    draw_graffiti
    draw_gesture
    draw_spotlight
  end
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 319
def draw_current_slide_pixbuf(pixbuf)
  width, height = pixbuf.width, pixbuf.height
  x = @adjustment_x * width
  y = @adjustment_y * height
  @surface.draw_pixbuf(@foreground, pixbuf,
                       x, y, 0, 0, width, height,
                       Gdk::RGB::DITHER_NORMAL, 0, 0)
  if @adjustment_x != 0 or @adjustment_y != 0
    draw_next_slide
  end
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 331
def draw_next_slide
  @canvas.change_current_index(@canvas.current_index + 1) do
    draw_current_slide do |pixbuf|
      draw_next_slide_pixbuf(pixbuf)
    end
  end
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 339
def draw_next_slide_pixbuf(pixbuf)
  width, height = pixbuf.size
  adjustment_width = @adjustment_x * width
  adjustment_height = @adjustment_y * height
  src_x = src_y = dest_x = dest_y = 0
  src_width = width
  src_height = height

  if adjustment_width > 0
    dest_x = width - adjustment_width
    src_width = adjustment_width
  elsif adjustment_width < 0
    src_x = width + adjustment_width
    src_width = -adjustment_width
  end

  if adjustment_height > 0
    dest_y = height - adjustment_height
    src_height = adjustment_height
  elsif adjustment_height < 0
    src_y = height + adjustment_height
    src_height = -adjustment_height
  end

  @surface.draw_pixbuf(@foreground, pixbuf, src_x, src_y,
                       dest_x, dest_y, src_width, src_height,
                       Gdk::RGB::DITHER_NORMAL, 0, 0)
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 291
def init_drawing_area
  super
  set_button_event(@area)
  set_motion_event(@area)
  set_scroll_event(@area)
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 298
def paint(color_name)
  context = @surface.create_cairo_context
  context.set_source_rgba(*Color.parse(color_name).to_a)
  context.paint
end

# File lib/rabbit/renderer/display/drawing-area-base.rb, line 286
def remove_widgets_from_container(container)
  container.remove(@hbox)
  @hbox = @vbox = nil
end