Class: MotionPrime::LabelDrawElement

Inherits:
DrawElement show all
Includes:
DrawBackgroundMixin, ElementContentTextMixin, ElementTextMixin
Defined in:
motion-prime/elements/draw/label.rb

Instance Attribute Summary

Attributes inherited from BaseElement

#name, #options, #screen, #section, #styles, #view, #view_class, #view_name

Instance Method Summary collapse

Methods included from DrawBackgroundMixin

#draw_background_in_context

Methods included from ElementTextMixin

#attributed_string, #html_string

Methods included from ElementContentTextMixin

#attributed_text?, #cached_content_height, #cached_content_width, #content_attributed_text, #content_font, #content_height, #content_text, #content_width

Methods inherited from DrawElement

#bind_gesture, #computed_bottom, #computed_frame, #computed_height, #computed_inner_bottom, #computed_inner_left, #computed_inner_right, #computed_inner_top, #computed_left, #computed_max_height, #computed_max_width, #computed_outer_height, #computed_outer_width, #computed_right, #computed_top, #computed_width, factory, #hide, #render!, #show, #update_with_options, #view

Methods included from ElementContentPaddingMixin

#cached_content_outer_height, #cached_content_outer_width, #content_outer_height, #content_outer_width, #content_padding_bottom, #content_padding_height, #content_padding_left, #content_padding_right, #content_padding_top, #content_padding_width

Methods included from FrameCalculatorMixin

#calculate_frome_for

Methods inherited from BaseElement

#add_target, after_render, before_render, #bind_gesture, #compute_options!, #computed_options, factory, #hide, #initialize, #render, #render!, #show, #update_with_options

Methods included from HasClassFactory

#camelize_factory, #class_factory, #low_camelize_factory

Methods included from HasStyleChainBuilder

#build_styles_chain

Methods included from HasNormalizer

#normalize_object, #normalize_options

Constructor Details

This class inherits a constructor from MotionPrime::BaseElement

Instance Method Details

#default_padding_for(side) ⇒ Object 



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# File 'motion-prime/elements/draw/label.rb', line 77

def default_padding_for(side)
  return super unless side.to_s == 'top'
  @padding_top || 0
end

#draw_in(rect) ⇒ Object 



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# File 'motion-prime/elements/draw/label.rb', line 40

def draw_in(rect)
  draw_in_context(UIGraphicsGetCurrentContext())
end

#draw_in_context(context) ⇒ Object 



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# File 'motion-prime/elements/draw/label.rb', line 44

def draw_in_context(context)
  return if computed_options[:hidden]
  size_to_fit_if_needed
  set_text_position

  draw_background_in_context(context)

  UIGraphicsPushContext(context)
  options = draw_options
  if options[:is_html] || options[:line_spacing] || options[:line_height] || options[:underline]
    prepared_text = options[:is_html] ? html_string(options) : attributed_string(options)

    if options[:inner_rect]
      prepared_text.drawInRect(options[:inner_rect])
    else
      prepared_text.drawAtPoint(options[:top_left_corner])
    end
  else
    # regular string
    prepared_text = options[:text]
    options[:text_color].set
    if options[:inner_rect]
      prepared_text.drawInRect(options[:inner_rect],
        withFont: options[:font],
        lineBreakMode: options[:line_break_mode],
        alignment: options[:text_alignment])
    else
      prepared_text.drawAtPoint(options[:top_left_corner], withFont: options[:font])
    end
  end
  UIGraphicsPopContext()
end

#draw_options ⇒ Object 



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# File 'motion-prime/elements/draw/label.rb', line 8

def draw_options
  options = computed_options
  text = (options[:html] || options[:text]).to_s.gsub(/\A[\n\r]+/, '')
  text_color = (options[:text_color] || :black).uicolor
  font = (options[:font] || :system).uifont

  text_alignment_name = options.fetch(:text_alignment, :left)
  text_alignment = text_alignment_name.uitextalignment
  line_break_mode_name = options.fetch(:line_break_mode, :tail_truncation)
  line_break_mode = line_break_mode_name.uilinebreakmode

  top_left_corner = CGPointMake(computed_inner_left, computed_inner_top)
  if options[:number_of_lines].to_i.zero?
    inner_rect = CGRectMake(*top_left_corner.to_a, computed_width, computed_height)
  end
  super.merge({
    text: text,
    is_html: options[:html].present?,
    text_color: text_color,
    font: font,
    text_alignment_name: text_alignment_name,
    text_alignment: text_alignment,
    line_break_mode_name: line_break_mode_name,
    line_break_mode: line_break_mode,
    line_spacing: options[:line_spacing],
    line_height: options[:line_height],
    underline: options[:underline],
    top_left_corner: top_left_corner,
    inner_rect: inner_rect
  })
end

#set_text_position ⇒ Object 



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# File 'motion-prime/elements/draw/label.rb', line 90

def set_text_position
  if computed_options.slice(:padding_top, :padding_bottom, :padding).values.none?
    computed_options[:width] ||= computed_width
    content_height = cached_content_height
    content_height = computed_outer_height if content_height > computed_outer_height
    @padding_top = (computed_outer_height - content_height)/2
    # @padding_top += 1 unless @padding_top.zero?
  end
end

#size_to_fit_if_needed ⇒ Object 



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# File 'motion-prime/elements/draw/label.rb', line 82

def size_to_fit_if_needed
  if computed_options[:size_to_fit]
    computed_options[:width] ||= cached_content_outer_width
    computed_options[:height] ||= cached_content_outer_height
    reset_computed_values
  end
end