Class: AuthorEngine::CodeEditor

Inherits:
View
  • Object
show all
Defined in:
lib/author_engine/views/code_editor.rb,
lib/author_engine/code_editor/cursor.rb,
lib/author_engine/code_editor/highlighting.rb

Defined Under Namespace

Classes: CodeInput, Cursor, Highlighting

Constant Summary collapse

DEFAULT_STRING = 
<<-EOF
def init
  @size = 10
  @x    = width/2  - @size/2
  @y    = height/2 - @size/2
end

def draw
  rect(@x, @y, @size, @size, pink)
  text("x: \#{@x}, y: \#{@y}", 0, 0, 8)
end

def update
  @x+=1 if button?("right")
  @x-=1 if button?("left")
  @y-=1 if button?("up")
  @y+=1 if button?("down")

  @x = 0            if @x < 0
  @x = 128-@size if @x > 128-@size

  @y = 0            if @y < 0
  @y = 128-@size if @y > 128-@size
end
EOF

Constants included from Part::Colors

Part::Colors::COLORS

Instance Attribute Summary collapse

Attributes inherited from View

#background, #height, #width, #x, #y

Instance Method Summary collapse

Methods inherited from View

#initialize, instance, instance=, #mouse_inside_view?

Methods included from Part::Colors

#black, #blue, #brown, #dark_blue, #dark_gray, #dark_green, #dark_purple, #green, #indigo, #light_gray, #orange, #peach, #pink, #red, #rgb, #white, #xml_color, #yellow

Methods included from Support

#code_editor, #mouse_over?, #sprite_editor, #window

Constructor Details

This class inherits a constructor from AuthorEngine::View

Instance Attribute Details

#x_offset ⇒ Object

Returns the value of attribute x_offset.



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# File 'lib/author_engine/views/code_editor.rb', line 37

def x_offset
  @x_offset
end

#y_offset ⇒ Object

Returns the value of attribute y_offset.



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# File 'lib/author_engine/views/code_editor.rb', line 37

def y_offset
  @y_offset
end

Instance Method Details

#blur ⇒ Object 



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# File 'lib/author_engine/views/code_editor.rb', line 63

def blur
  window.text_input = nil
end

#button_down(id) ⇒ Object 



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# File 'lib/author_engine/views/code_editor.rb', line 105

def button_down(id)
  @cursor.button_down(id)
end

#button_up(id) ⇒ Object 



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# File 'lib/author_engine/views/code_editor.rb', line 109

def button_up(id)
  cursor_pos = @text_input.caret_pos # get a copy of the current cursor location

  if id == Gosu::KbEnter || id == Gosu::KbReturn
    # raise if @caret_pos != @text_input.caret_pos
    @text_input.text = @text_input.text.insert(@text_input.caret_pos, "\n")
    @cursor.set_position(cursor_pos+1)
  end

  @cursor.move(:up) if id == Gosu::KbUp
  @cursor.move(:down) if id == Gosu::KbDown

  if id == Gosu::KbTab
    text = @text_input.text

    if window.shift_button_down?
      # FIXME: remove spaces behide cursor

      # chars = @text_input.text.chars

      # if text[cursor_pos] == " " && text[cursor_pos-1] == " "
      #   chars.delete_at(cursor_pos-1)
      #   chars.delete_at(cursor_pos)
      #   @cursor.set_position(cursor_pos-2)

      #   text = chars.join
      # elsif text[cursor_pos] == " "
      #   chars.delete_at(cursor_pos-1)
      #   @cursor.set_position(cursor_pos-1)

      #   text = chars.join
      # else
      #   p text[cursor_pos]
      # end

    else
      @text_input.text = @text_input.text.insert(cursor_pos, "  ")
      p cursor_pos+2
      @cursor.set_position(cursor_pos+2)
    end
  end

  @cursor.button_up(id)
end

#code ⇒ Object 



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# File 'lib/author_engine/views/code_editor.rb', line 103

def code; @text_input.text; end

#draw ⇒ Object 



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# File 'lib/author_engine/views/code_editor.rb', line 67

def draw
  # Gosu.draw_rect(0, window.container.header_height, @width, @height, white)
  super
  Gosu.clip_to(0, window.container.header_height, window.width, window.height - window.container.header_height) do
    Gosu.draw_rect(0, window.container.header_height, @line_numbers_width, @height, dark_gray)

    Gosu.translate(0, @y_offset) do
      min_width = @font.text_width("0")+@x_padding
      (@text.message.lines.map(&:chomp)).each_with_index do |line, index|
        min_width = @font.text_width("#{index+1}") if @font.text_width("#{index+1}") > min_width

        @font.draw_text("#{index+1}", 1, window.container.header_height + (@font.height * index), 0)
      end

      @line_numbers_width = min_width
      @text.x = @line_numbers_width+@x_padding
    end
  end

  Gosu.clip_to(@line_numbers_width, window.container.header_height, window.width, @height) do
    Gosu.translate(@x_offset, @y_offset) do
      @text.draw_markup
      @cursor.draw
    end
  end
end

#focus ⇒ Object 



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# File 'lib/author_engine/views/code_editor.rb', line 58

def focus
  window.text_input = @text_input
  window.caption = "Code Editor"
end

#setup ⇒ Object 



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# File 'lib/author_engine/views/code_editor.rb', line 38

def setup
  @font_size = 5 * window.square_scale.floor
  @font = Gosu::Font.new(@font_size, name: Text::FONT_DEFAULT_BOLD) # "Consolas"
  @line_numbers_spacing = "00"
  @line_numbers_width   = @font.text_width(@line_numbers_spacing)

  @text_input = CodeInput.new
  if window.container.savefile.code.nil?
    @text_input.text = DEFAULT_STRING
  else
    @text_input.text = window.container.savefile.code
  end
  @text = AuthorEngine::Text.new(message: "", size: @font_size, x: @line_numbers_width+@x_padding, y: window.container.header_height, font: Text::FONT_DEFAULT) # "DejaVu Sans Mono"

  @cursor = Cursor.new(view: self, text_input: @text_input, text: @text)
  @highlighting = Highlighting.new

  @x_offset, @y_offset = 0, 0
end

#update ⇒ Object 



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# File 'lib/author_engine/views/code_editor.rb', line 94

def update
  super
  # @text_input.text+="\n" if Gosu.button_down?(Gosu::KbEnter) || Gosu.button_down?(Gosu::KbReturn) # FIXME
  @caret_pos = @text_input.caret_pos
  @highlighting.highlight(string: @text_input.text, text: @text)

  @cursor.update
end