Scrolling refactoring and Bug fixes. Add `Axis` enum arg to `Edge::Position` in graph.#662

Merged

mitchmindtree merged 19 commits intoPistonDevelopers:masterfrom mitchmindtree:scrolling_refactor

Jan 9, 2016

+822-766

Commits on Jan 8, 2016

Begin simplifcation of scroll.rs module. WIP (only implemented Y axis so far - yet to make it generic over axes).
mitchmindtree
committed
Update graph modules to store a Position edge for relative positioning on both X and Y axes. Closes PistonDevelopers#660 . Also update graph modules to latest scrolling simplification changes. Simpl…
mitchmindtree
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Add Axis enum with X and Y variants, used within the graph Position edges for tracking relative positioning uniquely across each axis.
mitchmindtree
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Update widget modules to simplification of scroll module. Change scrolling methods to scroll_kids for clarity of behaviour. Change pre_update_cache args to consider relative positioning across both…
mitchmindtree
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Update backend/graphics draw_scrolling function to latest WIP scroll simplification.
mitchmindtree
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Export new Axis position type
mitchmindtree
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Provide methods for viewing the currently updated and previously updated sets of widgets. Update call to bounding_box with latest changes, using consts for args rather than magic values.
mitchmindtree
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Update examples to latest scroll method name changes, i.e. scrolling -> scroll_kids.
mitchmindtree
committed

Commits on Jan 9, 2016