Commit Graph

35 Commits (54b841fab6cfdb38e8dc1382176e965787964b4c)

Author SHA1 Message Date
Florian Dehau 54b841fab6 feat(widgets/paragraph): improve scrolling
Add optional callback to `Wrap` to compute the scroll offsets given the wrapped lines. This let
users compute the offsets dynamically.
4 years ago
Florian Dehau 0ffea495b1 refactor: implement cascading styles
- merge `Style` and `StyleDiff` together. `Style` now is used to activate or deactivate certain
style rules not to overidden all of them.
- update all impacted widgets, examples and tests.
4 years ago
Florian Dehau 88c4b191fb feat(text): add new text primitives 4 years ago
Brooks Rady 112d2a65f6
feat(widgets/paragraph): add option to preserve indentation when the text is wrapped (#327) 4 years ago
Xiaopeng Li d999c1b434
feat(widgets/paragraph): Add horizontal scroll (#329)
* `Paragraph:scroll` takes a tuple of offsets instead of a single vertical offset.
* `LineTruncator` takes this new horizontal offset into account to let the paragraph scroll horizontally.
4 years ago
Florian Dehau bc2a512101 feat: add missing `Clone` and `Copy` on types 4 years ago
Florian Dehau 6cb57f5d2a feat: add stateful widgets
Most widgets can be drawn directly based on the input parameters. However, some
features may require some kind of associated state to be implemented.

For example, the `List` widget can highlight the item currently selected. This
can be translated in an offset, which is the number of elements to skip in
order to have the selected item within the viewport currently allocated to this
widget. The widget can therefore only provide the following behavior: whenever
the selected item is out of the viewport scroll to a predefined position (make
the selected item the last viewable item or the one in the middle).
Nonetheless, if the widget has access to the last computed offset then it can
implement a natural scrolling experience where the last offset is reused until
the selected item is out of the viewport.

To allow such behavior within the widgets, this commit introduces the following
changes:
- Add a `StatefulWidget` trait with an associated `State` type. Widgets that
can take advantage of having a "memory" between two draw calls needs to
implement this trait.
- Add a `render_stateful_widget` method on `Frame` where the associated
state is given as a parameter.

The chosen approach is thus to let the developers manage their widgets' states
themselves as they are already responsible for the lifecycle of the wigets
(given that the crate exposes an immediate mode api).

The following changes were also introduced:

- `Widget::render` has been deleted. Developers should use `Frame::render_widget`
instead.
- `Widget::background` has been deleted. Developers should use `Buffer::set_background`
instead.
- `SelectableList` has been deleted. Developers can directly use `List` where
`SelectableList` features have been back-ported.
4 years ago
Florian Dehau ea43413507 fix: remove clippy warnings 4 years ago
Florian Dehau b669cf9ce7 style: fix clippy warnings 5 years ago
Sven-Hendrik Haase 144bfb71cf Upgrade to 2018 edition 5 years ago
Karoline Pauls 10642d0e04 Paragraph: word wrapping 6 years ago
Karoline Pauls 1802cf8dbc Improve wrapping of double-width characters 6 years ago
Karoline Pauls 03bfcde147 [widgets][paragraph]: Truncate long lines when wrap is false 6 years ago
Antoine Büsch e42ab1fed8 Move Text to widgets/mod.rs 6 years ago
Antoine Büsch 0544c023f5 Rename Text::{Data -> Raw, StyledData -> Styled} 6 years ago
Antoine Büsch ff47f9480b Introduce builder methods for Text to make it more ergonomic 6 years ago
Antoine Büsch 70561b7c54 Fix examples and doctests 6 years ago
Antoine Büsch 559c9c75f3 Make Text accept both borrowed and owned strings 6 years ago
Florian Dehau 13e194cd26 refactor: update widgets
* all widgets use the consumable builder pattern
* `draw` on terminal expect a closure that take a frame as only arg
6 years ago
Florian Dehau d6016788ef refactor: clippy + rustfmt 6 years ago
Florian Dehau ad602a54bf refactor(widgets): replace text rendering in Paragraph
* remove custom markup language
* add Text container for both raw and styled strings
6 years ago
Robin Nehls 3f8a9079ee [widgets] implement text alignment for paragraph widget 6 years ago
Florian Dehau 36a5eb2110 Format code 6 years ago
Xavier Bestel f4052e0e71 fix colors use, add missing Blue 6 years ago
Florian Dehau 36dea8373f [widgets][paragraph] Fix text wrapping 6 years ago
Florian Dehau 151d7e8a1c [src] Update dependencies
* Update all dependencies to their latest versions
* Change border to Borders to match v1.0 of bitflags
7 years ago
Florian Dehau 1f285fbac0 [src] Run cargo fmt 7 years ago
Florian Dehau 71545a0aa8 Run cargo fmt 7 years ago
Florian Dehau b1737ce667 Update Widget Trait
The draw function now take a &mut reference to the widget, allowing the
widget to modify itself when drawn. This change the semantic of the draw
call since the widget should now be considered "consumed" after it.
7 years ago
Florian Dehau b2bb24b9d2 Fix rustfmt and clippy errors 7 years ago
Sebastian Woetzel 81cedbd6f2
fixes scroll handling for paragraph widget 7 years ago
Florian Dehau 116ee4439a Improve Paragraph widget
* Add the possibility to disable the markup rendering
* Fix parser error
8 years ago
Florian Dehau 5efc52e03d Fix parser in paragraph 8 years ago
Florian Dehau 662e2dd102 Fix examples 8 years ago
Florian Dehau 224eb2d8e0 Add support for text styling 8 years ago