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| viewport_width = $(window).width() | |
| ideal_height = parseInt($(window).height() / 2) | |
| summed_width = photos.reduce ((sum, p) -> sum += p.get('aspect_ratio') * ideal_height), 0 | |
| rows = Math.round(summed_width / viewport_width) | |
| if rows < 1 | |
| # (2a) Fallback to just standard size | |
| photos.each (photo) -> photo.view.resize parseInt(ideal_height * photo.get('aspect_ratio')), ideal_height | |
| else | |
| # (2b) Distribute photos over rows using the aspect ratio as weight | |
| weights = photos.map (p) -> parseInt(p.get('aspect_ratio') * 100) | |
| partition = linear_partition(weights, rows) | |
| # (3) Iterate through partition | |
| index = 0 | |
| row_buffer = new Backbone.Collection | |
| _.each partition, (row) -> | |
| row_buffer.reset() | |
| _.each row, -> row_buffer.add(photos.at(index++)) | |
| summed_ratios = row_buffer.reduce ((sum, p) -> sum += p.get('aspect_ratio')), 0 | |
| row_buffer.each (photo) -> photo.view.resize parseInt(viewport_width / summed_ratios * photo.get('aspect_ratio')), parseInt(viewport_width / summed_ratios) |
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