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https://github.com/flynx/ImageGrid.git
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89 lines
3.7 KiB
Plaintext
Executable File
89 lines
3.7 KiB
Plaintext
Executable File
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General Structure
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| +----------------------------------+ | loading buffer
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| +----------------------------------+ | (rows loading or unloading while scrolling)
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| | | |
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| | row | |
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| +----------------------------------+ |
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| -+
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| -+
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| +----------------------------------+ | scroll buffer
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| | | | (loaded rows)
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| | row | |
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| +----------------------------------+ |
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| +----------------------------------+ |
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| | row | |
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| +----------------------------------+ |
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| -+
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| +-visible-area-------------------------+
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| | +----------------------------------+ |
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| | | +========+ +--------+ +--------+ | |
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| | | | ref | | | | | | |
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| | | +========+ +--------+ +--------+ | |
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| | +----------------------------------+ |
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| | +----------------------------------+ |
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| | | +--------+ +--------+ +--------+ | |
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| | | | block | | | | | | |
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| | | +--------+ +--------+ +--------+ | |
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| | +----------------------------------+ |
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| | +----------------------------------+ |
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| | | row | |
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| | +----------------------------------+ |
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| +--------------------------------------+
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| -+
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| +----------------------------------+ | scroll buffer
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| | | | (loaded rows)
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| | row | |
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| +----------------------------------+ |
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| +----------------------------------+ |
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| | row | |
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| +----------------------------------+ |
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| -+
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| -+
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| +----------------------------------+ | loading buffer
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| | | | (rows loading or unloading while scrolling)
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| | row | |
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| +----------------------------------+ |
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| +----------------------------------+ |
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elements
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view / visible area
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scroll buffer
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loading/unloading buffer
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operation/actions
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scroll
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resize
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filter
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positioning
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reference block
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| a block top-left of the visible area.
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| this block must remain in the same position during any operations
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| with the content of grid. including:
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| - resizing
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| - filtering
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| there is only one exception: arity of the grid -- the top-most row
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| must always be full. thus moving the reference left of right, but
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| never up or down.
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| vim:set spell ts=4 sw=4 :
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