class Rabbit::Renderer::Offscreen
Attributes
height[RW]
pango_context[RW]
width[RW]
Public Class Methods
new(canvas, width=nil, height=nil)
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Calls superclass method
Rabbit::Renderer::Base.new
# File lib/rabbit/renderer/offscreen.rb, line 30 def initialize(canvas, width=nil, height=nil) super(canvas) @width = width @height = height @pango_context = nil end
Public Instance Methods
create_pango_context()
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# File lib/rabbit/renderer/offscreen.rb, line 87 def create_pango_context context = Gtk::Invisible.new.create_pango_context set_font_resolution(context) context end
index_mode_off()
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# File lib/rabbit/renderer/offscreen.rb, line 55 def index_mode_off end
index_mode_on()
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# File lib/rabbit/renderer/offscreen.rb, line 52 def index_mode_on end
make_layout(text)
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# File lib/rabbit/renderer/offscreen.rb, line 64 def make_layout(text) attrs, text = Pango.parse_markup(text) layout = Pango::Layout.new(create_pango_context) layout.text = text layout.set_attributes(attrs) layout end
post_apply_theme()
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# File lib/rabbit/renderer/offscreen.rb, line 37 def post_apply_theme end
post_move(old_index, index)
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# File lib/rabbit/renderer/offscreen.rb, line 40 def post_move(old_index, index) end
post_move_in_slide(old_index, index)
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# File lib/rabbit/renderer/offscreen.rb, line 43 def post_move_in_slide(old_index, index) end
post_parse()
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# File lib/rabbit/renderer/offscreen.rb, line 49 def post_parse end
post_to_pixbuf(canceled)
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# File lib/rabbit/renderer/offscreen.rb, line 101 def post_to_pixbuf(canceled) end
post_toggle_index_mode()
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# File lib/rabbit/renderer/offscreen.rb, line 61 def post_toggle_index_mode end
pre_parse()
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# File lib/rabbit/renderer/offscreen.rb, line 46 def pre_parse end
pre_to_pixbuf(slide_size)
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# File lib/rabbit/renderer/offscreen.rb, line 93 def pre_to_pixbuf(slide_size) end
pre_toggle_index_mode()
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# File lib/rabbit/renderer/offscreen.rb, line 58 def pre_toggle_index_mode end
to_pixbuf(slide)
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# File lib/rabbit/renderer/offscreen.rb, line 72 def to_pixbuf(slide) pixbuf = nil ::Cairo::ImageSurface.new(@width, @height) do |surface| context = ::Cairo::Context.new(surface) init_context(context) slide.draw(@canvas) png = StringIO.new surface.write_to_png(png) loader = ImageDataLoader.new(png.string) pixbuf = loader.load finish_context end pixbuf end
to_pixbufing(i)
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# File lib/rabbit/renderer/offscreen.rb, line 96 def to_pixbufing(i) Utils.process_pending_events true end
Private Instance Methods
init_color()
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Calls superclass method
Rabbit::Renderer::Base#init_color
# File lib/rabbit/renderer/offscreen.rb, line 105 def init_color super init_engine_color end
init_dpi()
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# File lib/rabbit/renderer/offscreen.rb, line 114 def init_dpi @x_dpi = ScreenInfo.screen_x_resolution @y_dpi = ScreenInfo.screen_y_resolution end
offscreen_renderer?()
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# File lib/rabbit/renderer/offscreen.rb, line 110 def offscreen_renderer? true end