AndyObtiva/glimmer-dsl-libui

# Copyright (c) 2021-2024 Andy Maleh
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

require 'glimmer/libui/control_proxy'

module Glimmer
  module LibUI
    class ControlProxy
      # Proxy for LibUI font button objects
      #
      # Follows the Proxy Design Pattern
      class FontButtonProxy < ControlProxy
        def font
          @font_descriptor ||= ::LibUI::FFI::FontDescriptor.malloc
          ::LibUI.font_button_font(@libui, @font_descriptor)
          {
            family: @font_descriptor.Family.to_s,
            size: @font_descriptor.Size,
            weight: Glimmer::LibUI.enum_value_to_symbol(:text_weight, @font_descriptor.Weight),
            italic: Glimmer::LibUI.enum_value_to_symbol(:text_italic, @font_descriptor.Italic),
            stretch: Glimmer::LibUI.enum_value_to_symbol(:text_stretch, @font_descriptor.Stretch),
          }
        end
        
        def family
          font[:family]
        end
        
        def size
          font[:size]
        end
        
        def weight
          font[:weight]
        end
        
        def italic
          font[:italic]
        end
        
        def stretch
          font[:stretch]
        end
        
        def destroy
          ::LibUI.free_font_button_font(@font_descriptor) unless @font_descriptor.nil?
          super
        end
        
        def data_bind_read(property, model_binding)
          # No Op
        end
        
        def data_bind_write(property, model_binding)
          handle_listener('on_changed') { model_binding.call(font) } if property == 'font'
        end
      end
    end
  end
end