I've extracted all the http request code and turned it
into its own crate at <https://github.com/emilk/ehttp>.
There was never a reason for the HTTP request library to be part of
`eframe`. Much better to have it as its own crate!
This PR introduces a completely rewritten text layout engine which is simpler and more powerful. It allows mixing different text styles (heading, body, etc) and formats (color, underlining, strikethrough, …) in the same layout pass, and baked into the same `Galley`.
This opens up the door to having a syntax-highlighed code editor, or a WYSIWYG markdown editor.
One major change is the color is now baked in at layout time. However, many widgets changes text color on hovered. But we need to do the text layout before we know if it is hovered. Therefor the painter has an option to override the text color of a galley.
## Performance
Text layout alone is about 20% slower, but a lot of that is because more tessellation is done upfront. Text tessellation is now a lot faster, but text layout + tessellation still lands at a net loss of 5-10% in performance. There are however a few tricks to speed it up (like using `smallvec`) which I am saving for later. Text layout is also cached, meaning that in most cases (when all text isn't changing each frame) text tessellation is actually more important (and that's more than 2x faster!).
Sadly, the actual text cache lookup is significantly slower (300ns -> 600ns). That's because the `TextLayoutJob` is a lot bigger (it has more options, like underlining, fonts etc), so it is slower to hash and compare. I have an idea how to speed this up, but I need to do some other work before I can implement that.
All in all, the performance impact on `demo_with_tesselate__realistic` is about 5-6% in the red. Not great; not terrible. The benefits are worth it, but I also think with some work I can get that down significantly, hopefully down to the old levels.
* First pass (missing rendering the bar)
* Render horizontal bars, and change Window scroll API
* emath: add impl Index + IndexMut for Align2
* Scrolling: fix subtle sizing bugs
* Add horizontal scrolling to color test
* try to wrap content before showing scrollbars, + add auto-shrink option
* Add hscroll to the misc demo window
* Fix for putting wrapping labels in an infinitely wide layout
* Add a egui_asserts to protect against nans in the layout engine
* Add line about horizontal scrolling to changelog
* Add example to docs of ScrollArea
* code cleanup
* Fix incorrect max_width/height of panels
* Fix set_width/set_min_width/set_height/set_min_height
Closes https://github.com/emilk/egui/issues/647
Broke in https://github.com/emilk/egui/pull/629
* Fix expand_to_include_x/expand_to_include_y
* Make minimum grid column width propagate properly
* Expand cursor when max_rect expands
* Add ui.expand_to_include_y
* Only expand cursor in advance
* demo: clean up font_book code
* Fix: Make sure `TextEdit` contents expand to fill width if applicable
* ProgressBar: minimum width and fix for having it in an infinite layout
* clippy fix
* Add methods for optionally displaying the background/axes of a `Plot`
These are particularly useful when using the `Plot` widget as an overlay
over an existing grid or some other content.
* Allow for showing each axis of a `Plot` individually
* Add collapsing header select as selectable label
* Modified Tree demo adding selectable example
* Update egui/src/containers/collapsing_header.rs
Selected is not linked to selectable
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
* Update egui/src/containers/collapsing_header.rs
Description example
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
* Changing example without name clashing
* Fixing merge issue (ah I miss P4 sometimes)
* Fixing doctest example
* Add possibility to show background to a single one
* Fixing clippy test
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
* Allow using the layout cursor to restrict available area
* Avoid id clashes when putting panels inside a Ui
* Panels: Propagate height/width range to inner Ui
* Allow easy placement of panels inside of Ui:s
* demo: simplify Windows with Panels demo
* Fix case where `Plot`'s `min_auto_bounds` can be ignored after first
I ran into an issue using `Plot` within my timeline widget where if I
zoom in and out of the timeline (not the plot), the `Plot` instances
would ignore the necessary changes to the `include_x` calls and in turn
would become skewed and misaligned with the timeline below.
This changes the `Plot` to check whether or not `min_auto_bounds` have
changed and, if so, reset the memory and recalculate the bounds.
See #562 for an image of my current use case.
* Carry hidden_items when updating plot for changed bounds
* added new line styles
* update changelog
* fix#524
Add missing functions to `HLine` and `VLine`
* add functions for creating points and dashes from a line
* apply suggestions
* clippy fix
* address comments
This allows for resizaeable grids, where the last column will be given the remainder of the width.
To demonstrate, the widget gallery window is now resizeable.
