AndyObtiva/glimmer-dsl-swt

# Copyright (c) 2007-2024 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
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# 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/swt/custom/shape'
require 'glimmer/swt/swt_proxy'
require 'glimmer/swt/display_proxy'
require 'glimmer/swt/color_proxy'
require 'glimmer/swt/font_proxy'
require 'glimmer/swt/transform_proxy'
require 'glimmer/swt/image_proxy'

module Glimmer
  module SWT
    module Custom
      # Represents a shape (graphics) to be drawn on a control/widget/canvas/display
      # That is because Shape is drawn on a parent as graphics and doesn't have an SWT widget for itself
      class Shape
        class Image < Shape
          def parameter_names
            @parameter_names || image_whole_parameter_names
          end
        
          def possible_parameter_names
            (image_part_parameter_names + image_whole_parameter_names).uniq
          end
          
          def image_part_parameter_names
            [:image, :src_x, :src_y, :src_width, :src_height, :dest_x, :dest_y, :dest_width, :dest_height]
          end
          
          def image_whole_parameter_names
            [:image, :x, :y]
          end
          
          def set_parameter_attribute(attribute_name, *args)
            return super if @parameter_names.to_a.map(&:to_s).include?(attribute_name.to_s)
            ####TODO refactor and improve this method through meta-programming (and share across other shapes)
            if image_part_parameter_names.map(&:to_s).include?(attribute_name.to_s)
              @parameter_names = image_part_parameter_names
            elsif image_whole_parameter_names.map(&:to_s).include?(attribute_name.to_s)
              @parameter_names = image_whole_parameter_names
            end
            super
          end
          
          def x
            dest_x || get_attribute('x')
          end
          
          def y
            dest_y || get_attribute('y')
          end
          
          def width
            dest_width || image_proxy.bounds.width
          end
          
          def height
            dest_height || image_proxy.bounds.height
          end
          
          def image_proxy
            ImageProxy.create(image)
          end
          
          def default_x?
            super ||
              current_parameter_name?(:dest_x) && (dest_x.nil? || dest_x.to_s == 'default')
          end
          
          def default_y?
            super ||
              current_parameter_name?(:dest_y) && (dest_y.nil? || dest_y.to_s == 'default')
          end
          
          def move_by(x_delta, y_delta)
            if default_x?
              self.default_x_delta += x_delta
            elsif dest_x
              self.dest_x += x_delta
            else
              self.x += x_delta
            end
            
            if default_y?
              self.default_y_delta += y_delta
            elsif dest_y
              self.dest_y += y_delta
            else
              self.y += y_delta
            end
          end
        end
      end
    end
  end
end