71 lines
2.5 KiB
Ruby
71 lines
2.5 KiB
Ruby
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require 'erb'
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module Blueprint
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# Generates a custom grid file, using ERB to evaluate custom settings
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class CustomLayout
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# path to ERB file used for CSS template
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CSS_ERB_FILE = File.join(Blueprint::LIB_PATH, 'grid.css.erb')
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attr_writer :column_count, :column_width, :gutter_width, :input_padding, :input_border
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# Column count of generated CSS. Returns itself or Blueprint's default
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def column_count
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(@column_count || Blueprint::COLUMN_COUNT).to_i
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end
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# Column width (in pixels) of generated CSS. Returns itself or Blueprint's default
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def column_width
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(@column_width || Blueprint::COLUMN_WIDTH).to_i
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end
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# Gutter width (in pixels) of generated CSS. Returns itself or Blueprint's default
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def gutter_width
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(@gutter_width || Blueprint::GUTTER_WIDTH).to_i
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end
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def input_padding
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(@input_padding || Blueprint::INPUT_PADDING).to_i
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end
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def input_border
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(@input_border || Blueprint::INPUT_BORDER).to_i
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end
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# Returns page width (in pixels)
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def page_width
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column_count * (column_width + gutter_width) - gutter_width
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end
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# ==== Options
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# * <tt>options</tt>
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# * <tt>:column_count</tt> -- Sets the column count of generated CSS
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# * <tt>:column_width</tt> -- Sets the column width (in pixels) of generated CSS
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# * <tt>:gutter_width</tt> -- Sets the gutter width (in pixels) of generated CSS
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# * <tt>:input_padding</tt> -- Sets the input padding width (in pixels) of generated CSS
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# * <tt>:input_border</tt> -- Sets the border width (in pixels) of generated CSS
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def initialize(options = {})
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@column_count = options[:column_count]
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@column_width = options[:column_width]
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@gutter_width = options[:gutter_width]
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@input_padding = options[:input_padding]
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@input_border = options[:input_border]
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end
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# Boolean value if current settings are Blueprint's defaults
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def default?
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self.column_width == Blueprint::COLUMN_WIDTH &&
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self.column_count == Blueprint::COLUMN_COUNT &&
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self.gutter_width == Blueprint::GUTTER_WIDTH &&
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self.input_padding == Blueprint::INPUT_PADDING &&
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self.input_border == Blueprint::INPUT_BORDER
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end
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# Loads grid.css.erb file, binds it to current instance, and returns output
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def generate_grid_css
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# loads up erb template to evaluate custom widths
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css = ERB::new(File.path_to_string(CustomLayout::CSS_ERB_FILE))
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# bind it to this instance
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css.result(binding)
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end
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end
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end
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