Commit Graph

156 Commits

Author SHA1 Message Date
Emil Ernerfeldt 1354c3e19a
Make the code example demo narrow enough to fit on mobile (#4281)
I think it is a good example, and so I want to open it by default, but
for that it needs to work on mobile.

Hopefully this doesn't make it too cryptic

<img width="415" alt="image"
src="https://github.com/emilk/egui/assets/1148717/83d881fa-675e-4659-bd21-14abcb79fe46">
2024-03-30 17:51:44 +01:00
Emil Ernerfeldt 73dbfd689b Don't wrap the text in the `Frame` demo 2024-03-29 15:58:37 +01:00
Emil Ernerfeldt 3dba73e63e
Improve the UI for changing the egui theme (#4257)
I added a new demo - a `Frame` editor:

![frame-editor](https://github.com/emilk/egui/assets/1148717/d0bec169-c211-45a3-9f53-5059fb8fc224)

This whole menu is now just a a bit nicer to use:
<img width="406" alt="Screenshot 2024-03-28 at 09 49 16"
src="https://github.com/emilk/egui/assets/1148717/32d12067-7cf0-4312-aa12-42909a5ed5ac">
2024-03-28 10:09:28 +01:00
Emil Ernerfeldt f8d7d0ebaa
Enforce writing username in TODO comments (#4235) 2024-03-26 11:48:24 +01:00
Emil Ernerfeldt d449cb1d48
On touch screens, press-and-hold equals a secondary click (#4195)
* Closes https://github.com/emilk/egui/issues/3444
* Closes https://github.com/emilk/egui/issues/865

On a touch screen, if you press down on a widget and hold for 0.6
seconds (`MAX_CLICK_DURATION`), it will now trigger a secondary click,
i.e. `Response::secondary_clicked` will be `true`. This means you can
now open context menus on touch screens.
2024-03-20 11:49:17 +01:00
Emil Ernerfeldt cd1ed73388
Change the definition of `clicked_by` (#4192)
This is a refactor on the way to add support for opening context menus
on touch screens via press-and-hold.

This PR changes what `InputState::button_clicked` does (it was ver badly
named before), and also changes `Response::clicked_by` to no longer be
true if clicking with keyboard (i.e. a widget has keyboard focus and the
user presses Space or Enter).
2024-03-19 18:16:04 +01:00
Emil Ernerfeldt 00a399b2f7
A `Window` can now be resizable in only one direction (#4155)
For instance: `Window::new(…).resizable([true, false])` is a window that
is only resizable in the horizontal direction.

This PR also removes a hack added in
https://github.com/emilk/egui/pull/3039 which is no longer needed since
https://github.com/emilk/egui/pull/4026
2024-03-11 09:29:48 +01:00
Emil Ernerfeldt 18eeb01f57
Quickly animate scroll when calling `ui.scroll_to_cursor` etc (#4119)
Uses ease-in-ease-out interpolation, with a time between 0.1s and 0.3s,
depending on the distance needed to scroll.


![smooth-scroll-to-target](https://github.com/emilk/egui/assets/1148717/c5c8556d-476b-4597-842b-aa0e5927fbb9)
2024-03-04 20:00:13 +01:00
Emil Ernerfeldt e29022efc4
`Area::new` now takes an `Id` by argument (#4115)
This makes it more explicit that you are responsible for assigning a
globally unique `Id`.
2024-02-29 15:34:16 +01:00
Mike Tsao cdb7d153dc
`ui.dnd_drop_zone()` now returns `InnerResponse`. (#4079)
* Closes <https://github.com/emilk/egui/issues/4059>

```bash
$ ./scripts/check.sh 
[...]
+ echo 'All checks passed.'
```
2024-02-21 16:20:14 +01:00
Emil Ernerfeldt ca8c8792c2
New widget interaction logic (#4026)
* Closes https://github.com/emilk/egui/issues/3936
* Closes https://github.com/emilk/egui/issues/3923
* Closes https://github.com/emilk/egui/pull/4058

The interaction code is now done at the start of the frame, using stored
`WidgetRect`s from the previous frame.

The intention is that the new interaction code should be more accurate,
making it easier to hit widgets, and better respecting the rules of
overlapping widgets.

There is a new `style::Interaction::interact_radius` controlling how far
away from a widget the cursor can be and still hit it. This helps big
fat fingers hit small widgets on touch screens.

This PR adds a new `Context::read_response` which lets you read the
`Response` of a `Widget` _before_ you create the widget. This can be
used for styling, or for reading the result of an interaction early (to
prevent frame-delay) for a widget you add late (so it is on top of other
widgets).

# ⚠️ BREAKING CHANGES
`Memory::dragged_id`, `Memory::set_dragged_id` etc have been moved to
`Context`.
The semantics for `Context::dragged_id` is slightly different: a widget
is not considered dragged until egui it is sure this is not a
click-in-progress. For a widget that is only sensitive to drags, that is
right away, but for widgets sensitive to both clicks and drags it is not
until the mouse has moved a certain distance.

# TODO
* [x] Fix panel resizing
* [x] Fix scroll hover weirdness
* [x] Fix Resize widget
* [x] Fix drag-and-drop
* [x] Test all of egui_demo_app
* [x] Change `is_dragging` API
* [x] Consistent naming of start/stop or begin/end drag
* [x] Test `egui_tiles`
* [x] Test Rerun
* [x] Document
* [x] Document breaking changes in PR description
* [x] Test one final time

# Saving for a later PR
* [ ] Fix https://github.com/emilk/egui/issues/4047
* [ ] Specify what the response order for e.g. `ui.horizontal` is

I think both these can be fixed if each `Ui` registers themselves as a
`WidgetRect`, with the possibility to interact with it later, as if the
interaction was under all widgets on top of it.
2024-02-17 15:48:23 +01:00
Francis Chua 069d7a634d
Add layer transforms, interaction in layer (#3906)
⚠️ Removes `Context::translate_layer`, replacing it with a sticky
`set_transform_layer`

Adds the capability to scale layers.
Allows interaction with scaled and transformed widgets inside
transformed layers.

I've also added a demo of how to have zooming and panning in a window
(see the video below).

This probably closes #1811. Having a panning and zooming container would
just be creating a new
`Area` with a new id, and applying zooming and panning with
`ctx.transform_layer`.

I've run the github workflow scripts in my repository, so hopefully the
formatting and `cargo cranky` is satisfied.

I'm not sure if all call sites where transforms would be relevant have
been handled. This might also be missing are transforming clipping
rects, but I'm not sure where / how to accomplish that. In the demo, the
clipping rect is transformed to match, which seems to work.


https://github.com/emilk/egui/assets/70821802/77e7e743-cdfe-402f-86e3-7744b3ee7b0f

---------

Co-authored-by: tweoss <fchua@puffer5.stanford.edu>
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2024-02-17 11:02:56 +01:00
YgorSouza 2feb1440be
Add `Ui::set_opacity` (#3965)
Closes <https://github.com/emilk/egui/issues/3473>.
2024-02-16 10:39:30 +01:00
YgorSouza 34e8af87d4
Plot widget - allow disabling scroll for x and y separately (#4051)
To be consistent with the zoom and drag options that were added earlier.
2024-02-16 09:23:08 +01:00
Emil Ernerfeldt 0bf3056bd7
Fix: `Response.interact_pointer_pos` is `Some` on click and drag released (#4014)
* Closes https://github.com/emilk/egui/issues/3999

In 0.26.0 is was accidentally set to `None` on the frame we got a click
or drag release
2024-02-10 11:21:57 +01:00
Emil Ernerfeldt 5bf44f8850
Fix `Response::interact` and `Ui:interact_with_hovered` (#4013)
These broke in 0.26

* #3989
* #4006
2024-02-10 10:48:00 +01:00
njust 310d85a7fa
egui demo: Fix space reserved for source code link (#3983)
Clip the cell of the source code link to prevent the strip from growing
infinitely if the reserved size for the link is not sufficient.


![image](https://github.com/emilk/egui/assets/2380253/0cf214fc-addc-4212-90fc-d68834c1cfe7)

Closes <https://github.com/emilk/egui/issues/3980>.
2024-02-10 09:17:12 +01:00
YgorSouza 1bc70b20b1
Make `on_disabled_hover_ui` respect `tooltip_delay` (#4012)
* Closes <https://github.com/emilk/egui/issues/3997>
2024-02-10 09:07:21 +01:00
Emil Ernerfeldt 67b796faee
Misc cleanup (#3935)
* Improve docstring
* Nicer welcome gif in README
* Misc cleanup
2024-02-01 17:09:35 +01:00
Andreas Reich ca513ce241
Plot items now have optional id which is returned in the plot's response when hovered (#3920)
This allows users to check which item the user interacts with in the
plot.



https://github.com/emilk/egui/assets/1220815/1a174b38-8414-49be-a802-d187cd93d154

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2024-01-30 15:55:56 +01:00
Emil Ernerfeldt abd028bad3
Add drag-and-drop APIs with payloads storage (#3887)
* Closes https://github.com/emilk/egui/issues/3882

This adds several methods to make drag-and-drop more ergonomic in egui.

In particular, egui can now keep track of _what_ is being dragged for
you (the _payload_).

Low-level:
* `egui::DragAndDrop` hold the payload during a drag

Mid-level:
* `Response::dnd_set_drag_payload` sets it for drag-sources
* `Response::dnd_hover_payload` and `Response::dnd_release_payload`
reads it for drop-targets

High-level:
* `ui.dnd_drag_source`: make a widget draggable
* `ui.dnd_drop_zone`: a container where things can be dropped

The drag-and-drop demo is now a lot simpler:


https://github.com/emilk/egui/blob/emilk/drag-and-drop/crates/egui_demo_lib/src/demo/drag_and_drop.rs

---------

Co-authored-by: Antoine Beyeler <abeyeler@ab-ware.com>
2024-01-29 11:14:18 +01:00
Emil Ernerfeldt 5d0bc2bf7d
egui_plot: customizable spacing of grid and axis label spacing (#3896)
This lets users specify the spacing of the grid lines and the axis
labels, as well as when these start to fade out.

New:
* `AxisHints::new_x/new_y` (replaces `::default()`)
* `AxisHints::label_spacing`
* `Plot::grid_spacing`
2024-01-26 13:36:49 +01:00
Emil Ernerfeldt a815923717
Improve `Response.dragged`, `drag_started` and `clicked` (#3888)
If a widgets sense both clicks and drags, we don't know wether or not a
mouse press on it will be a short click or a long drag.

With this PR, `response.dragged` and `response.drag_started` isn't true
until we know it is a drag and not a click.
If the widget ONLY senses drags, then we know as soon as someone presses
on it that it is a drag.
If it is sensitive to both clicks and drags, we don't know until the
mouse moves a bit, or stays pressed down long enough.

This PR also ensures that `response.clicked` and is only true for
widgets that senses clicks.
2024-01-25 17:28:53 +01:00
Emil Ernerfeldt 41aad74552
Cross-widget text select (#3870)
* Closes https://github.com/emilk/egui/issues/3816


![cross-widget-text-selection](https://github.com/emilk/egui/assets/1148717/5582b9d2-8b04-47b7-9637-f48e44064a70)

Turn off with `style.interaction.multi_widget_text_select`.

There is an API for this in `LabelSelectionState`, but it's pretty
bare-bones.

This became really hairy implementation-wise, but it works decently
well.

# Limitations
* Drag-select to scroll doesn't work
* A selection disappears if you scroll past one of its end-points
* Only the text of labels and links are selectable
 
## TODO
* [x] An option to turn it off
* [x] An API for querying about the selected text, and to deselect it.
* [x] Scrolling past selection behaves weird
* [x] Shift-click to select a range
2024-01-24 15:45:22 +01:00
Emil Ernerfeldt 2f9a4ca6e8
Make `egui_plot::PlotMemory` public (#3871)
This allows users to e.g. read/write the plot bounds/transform before
and after showing a `Plot`.
2024-01-23 09:47:47 +01:00
Emil Ernerfeldt 2d725d157f
Add `Response::contains_pointer` (#3859)
* Part of https://github.com/emilk/egui/issues/3841
2024-01-22 11:17:03 +01:00
One 894a53488a
Fix typo (#3800)
Fixes small typo in comment
2024-01-22 11:15:37 +01:00
Emil Ernerfeldt f034f6db9f
Refactor: move text selection logic to own module (#3843)
This is a follow-up to https://github.com/emilk/egui/issues/3804 and a
pre-requisite for https://github.com/emilk/egui/issues/3816
2024-01-19 15:38:53 +01:00
Emil Ernerfeldt 5d2e192927
Selectable text in Labels (#3814)
* Closes https://github.com/emilk/egui/issues/3804

Add ability to select the text in labels with mouse-drag, double-click,
and keyboard (once clicked).
Hit Cmd+C to copy the text. If everything of a label with elided text is
selected, the copy command will copy the full non-elided text. IME and
accesskit _should_ work, but is untested.

You can control wether or not text in labels is selected globally in
`style.interaction.selectable_labels` or on a per-label basis in
`Label::selectable`. The default is ON.

This also cleans up the `TextEdit` code somewhat, fixing a couple
smaller bugs along the way.

This does _not_ implement selecting text across multiple widgets. Text
selection is only supported within a single `Label`, `TextEdit`, `Link`
or `Hyperlink`.


![label-text-selection](https://github.com/emilk/egui/assets/1148717/c161e819-50da-4b97-9686-042e6abf3564)


## TODO
* [x] Test
2024-01-14 15:17:55 +01:00
Emil Ernerfeldt 401de05630
Use `Self` everywhere (#3787)
This turns on the clippy lint
[`clippy::use_self`](https://rust-lang.github.io/rust-clippy/v0.0.212/index.html#use_self)
and fixes it everywhere.
2024-01-08 17:41:21 +01:00
Emil Ernerfeldt 5f55e8ea40 Tweak "About" panel in the demo slightly 2024-01-08 12:20:16 +01:00
One b0c7a7fca4
Add missing links to source code (#3770)
<!--
Please read the "Making a PR" section of
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* Keep your PR:s small and focused.
* If applicable, add a screenshot or gif.
* If it is a non-trivial addition, consider adding a demo for it to
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Closes <https://github.com/emilk/egui/issues/THE_RELEVANT_ISSUE>.
2024-01-08 09:07:25 +01:00
Guillaume Schmid 1777bb7789
Implemented window header color change when focused (on top). (#3515)
This PR replaces an old one with many problems (no collapse icon, the
header background was not funny colored, ugly...). It fixes those
problems.

It implements the highlight of the header to the focused window. And
allows the rest of the application to know the selected window. It
allows, for instance, to display multiple windows with images and some
additional meta information about those images on the side panel of the
main window. The side panel updates itself according to the selected
image window.

* Added a theme color for the selected window header.
* Added a function to retrieve the LayerId of the focused window.
* Implemented a simple demo of this function in the demo app where a
message states if the Option window is focused (at the bottom of the
Options window).

![Capture d’écran du 2023-10-30
10-30-39](https://github.com/emilk/egui/assets/18464073/fcea4dbf-2b07-485c-8c41-274ad5c738e4)

A technical point: 
The header color is applied with a transparency of 125 so the
collapsible button becomes visible.
The reason is that the collapsible button is rendered before the rest of
the header and before the header size is known.
We cannot draw the background before knowing this value, so rendering
with transparency is a solution to see the collapsible button through
the header background.

This PR has been sponsored by my company, which left me to do it during
my work time.
This is part of an evil plan to convince them to switch to rust for new
projects :)

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2024-01-07 16:57:32 +01:00
YgorSouza 797406de39
Add indeterminate state to checkbox (#3605)
<!--
Please read the "Making a PR" section of
[`CONTRIBUTING.md`](https://github.com/emilk/egui/blob/master/CONTRIBUTING.md)
before opening a Pull Request!

* Keep your PR:s small and focused.
* If applicable, add a screenshot or gif.
* If it is a non-trivial addition, consider adding a demo for it to
`egui_demo_lib`, or a new example.
* Do NOT open PR:s from your `master` branch, as that makes it hard for
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* Open the PR as a draft until you have self-reviewed it and run
`./scripts/check.sh`.
* When you have addressed a PR comment, mark it as resolved.

Please be patient! I will review your PR, but my time is limited!
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2024-01-06 22:34:23 +01:00
Lauro Oyen 5a6d1cbd58
Implement table row selection and hover highlighting (#3347)
* Based on #3105 by @vvv.

## Additions and Changes

- Add `TableBuilder::sense()` and `StripBuilder::sense()` to enable
detecting clicks or drags on table and strip cells.
- Add `TableRow::select()` which takes a boolean that sets the highlight
state for all cells added after a call to it. This allows highlighting
an entire row or specific cells.
- Add `TableRow::response()` which returns the union of the `Response`
of all cells added to the row up to that point. This makes it easy to
detect interactions with an entire row. See below for an alternative
design.
- Add `TableRow::index()` and `TableRow::col_index()` helpers.
- Remove explicit `row_index` from callback passed to
`TableBody::rows()` and `TableBody::heterogeneous_rows()`, possible due
to the above. This is a breaking change but makes the callback
compatible with `TableBody::row()`.
- Update Table example to demonstrate all of the above.

## Design Decisions

An alternative design to `TableRow::response()` would be to return the
row response from `TableBody`s `row()`, `rows()` and
`heterogeneous_rows()` functions. `row()` could just return the
response. `rows()` and `heterogeneous_rows()` could return a tuple of
the hovered row index and that rows response. I feel like this might be
the cleaner soluction if only returning the hovered rows response isn't
too limiting.

I didn't implement `TableBuilder::select_rows()` as described
[here](https://github.com/emilk/egui/pull/3105#issuecomment-1618062533)
because it requires an immutable borrow of the selection state for the
lifetime of the `TableBuilder`. This makes updating the selection state
from within the body unnecessarily complicated. Additionally the current
design allows for selecting specific cells, though that could be
possible by modifying `TableBuilder::select_rows()` to provide row and
column indices like below.

```rust
pub fn select_cells(is_selected: impl Fn(usize, usize) -> bool) -> Self
```

## Hover Highlighting

EDIT: Thanks to @samitbasu we now have hover highlighting too.

~This is not implemented yet. Ideally we'd have an api that allows to
choose between highlighting the hovered cell, column or row. Should
cells containing interactive widgets, be highlighted when hovering over
the widget or only when hovering over the cell itself? I'd like to
implement that before this gets merged though.~

Feedback is more than welcome. I'd be happy to make any changes
necessary to get this merged.

* Closes #1519
* Closes #1553
* Closes #3069

---------

Co-authored-by: Samit Basu <basu.samit@gmail.com>
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2024-01-06 18:10:34 +01:00
Emil Ernerfeldt 9951fe0d36
Fix some clippy 1.75 lints (#3754) 2023-12-30 11:23:21 +01:00
Emil Ernerfeldt 84a6d6f2ab Fix code example in `egui_demo_lib` 2023-11-30 17:53:34 +01:00
YgorSouza 4ece25bd05
Keep unsafe code forbidden when puffin is disabled (#3603)
This helps document what unsafe is being used for, and prevent other
uses from going unnoticed.
2023-11-22 20:37:46 +01:00
Emil Ernerfeldt 63e48dc855
Introduce global `zoom_factor` (#3608)
* Closes https://github.com/emilk/egui/issues/3602

You can now zoom any egui app by pressing Cmd+Plus, Cmd+Minus or Cmd+0,
just like in a browser. This will change the current `zoom_factor`
(default 1.0) which is persisted in the egui memory, and is the same for
all viewports.
You can turn off the keyboard shortcuts with `ctx.options_mut(|o|
o.zoom_with_keyboard = false);`

`zoom_factor` can also be explicitly read/written with
`ctx.zoom_factor()` and `ctx.set_zoom_factor()`.

This redefines `pixels_per_point` as `zoom_factor *
native_pixels_per_point`, where `native_pixels_per_point` is whatever is
the native scale factor for the monitor that the current viewport is in.

This adds some complexity to the interaction with winit, since we need
to know the current `zoom_factor` in a lot of places, because all egui
IO is done in ui points. I'm pretty sure this PR fixes a bunch of subtle
bugs though that used to be in this code.

`egui::gui_zoom::zoom_with_keyboard_shortcuts` is now gone, and is no
longer needed, as this is now the default behavior.

`Context::set_pixels_per_point` is still there, but it is recommended
you use `Context::set_zoom_factor` instead.
2023-11-22 20:34:51 +01:00
Emil Ernerfeldt 1bbd5a9fc8
Update puffin to 0.18 (#3600)
THe profiling macros now contain unsafe code (but in a safe way), so
`#[foribd(unsafe)]` had to become `#[deny(unsafe)]`
2023-11-21 17:58:33 +01:00
YgorSouza 49eecc4287
Allow changing handle shape of a slider (#3429)
* Closes #1974

<!--
Please read the "Making a PR" section of
[`CONTRIBUTING.md`](https://github.com/emilk/egui/blob/master/CONTRIBUTING.md)
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* Keep your PR:s small and focused.
* If applicable, add a screenshot or gif.
* If it is a non-trivial addition, consider adding a demo for it to
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* Do NOT open PR:s from your `master` branch, as that makes it hard for
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* Remember to run `cargo fmt` and `cargo cranky`.
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`./scripts/check.sh`.
* When you have addressed a PR comment, mark it as resolved.

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---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2023-11-21 11:24:29 +01:00
Emil Ernerfeldt 39271c3adf
CentralPanel: base id on the current viewport (#3593)
This means two `CentralPanel`s in different viewports get different ids,
avoiding id clashes
2023-11-20 21:54:32 +01:00
Emil Ernerfeldt 44ff29b012
Fix closing of viewports (#3591)
This ensures the closed viewport gets a close-event, and that it and the
parent viewport gets repainting, allowing the event to be registered.
2023-11-20 17:43:40 +01:00
Emil Ernerfeldt 1571027556
Replace `eframe::Frame` commands and `WindowInfo` with egui (#3564)
* Part of https://github.com/emilk/egui/issues/3556

## In short
You now almost never need to use `eframe::Frame` - instead use
`ui.input(|i| i.viewport())` for information about the current viewport
(native window), and use `ctx.send_viewport_cmd` to modify it.

## In detail

This PR removes most commands from `eframe::Frame`, and replaces them
with `ViewportCommand`.
So `frame.close()` becomes
`ctx.send_viewport_cmd(ViewportCommand::Close)`, etc.

`frame.info().window_info` is now also gone, replaced with `ui.input(|i|
i.viewport())`.

`frame.info().native_pixels_per_point` is replaced with `ui.input(|i|
i.raw.native_pixels_per_point)`.

`RawInput` now contains one `ViewportInfo` for each viewport.

Screenshots are taken with
`ctx.send_viewport_cmd(ViewportCommand::Screenshots)` and are returned
in `egui::Event` which you can check with:

``` ust
ui.input(|i| {
    for event in &i.raw.events {
        if let egui::Event::Screenshot { viewport_id, image } = event {
            // handle it here
        }
    }
});
```

### Motivation
You no longer need to pass around the `&eframe::Frame` everywhere.
This also opens the door for other integrations to use the same API of
`ViewportCommand`s.
2023-11-18 19:27:53 +01:00
Konkitoman 83aa3109d3
Multiple viewports/windows (#3172)
* Closes #1044

---
(new PR description written by @emilk)

## Overview
This PR introduces the concept of `Viewports`, which on the native
eframe backend corresponds to native OS windows.

You can spawn a new viewport using `Context::show_viewport` and
`Cotext::show_viewport_immediate`.
These needs to be called every frame the viewport should be visible.

This is implemented by the native `eframe` backend, but not the web one.

## Viewport classes
The viewports form a tree of parent-child relationships.

There are different classes of viewports.

### Root vieport
The root viewport is the original viewport, and cannot be closed without
closing the application.

### Deferred viewports
These are created with `Context::show_viewport`.
Deferred viewports take a closure that is called by the integration at a
later time, perhaps multiple times.
Deferred viewports are repainted independenantly of the parent viewport.
This means communication with them need to done via channels, or
`Arc/Mutex`.

This is the most performant type of child viewport, though a bit more
cumbersome to work with compared to immediate viewports.

### Immediate viewports
These are created with `Context::show_viewport_immediate`.
Immediate viewports take a `FnOnce` closure, similar to other egui
functions, and is called immediately. This makes communication with them
much simpler than with deferred viewports, but this simplicity comes at
a cost: whenever tha parent viewports needs to be repainted, so will the
child viewport, and vice versa. This means that if you have `N`
viewports you are poentially doing `N` times as much CPU work. However,
if all your viewports are showing animations, and thus are repainting
constantly anyway, this doesn't matter.

In short: immediate viewports are simpler to use, but can waste a lot of
CPU time.

### Embedded viewports
These are not real, independenant viewports, but is a fallback mode for
when the integration does not support real viewports. In your callback
is called with `ViewportClass::Embedded` it means you need to create an
`egui::Window` to wrap your ui in, which will then be embedded in the
parent viewport, unable to escape it.


## Using the viewports
Only one viewport is active at any one time, identified wth
`Context::viewport_id`.
You can send commands to other viewports using
`Context::send_viewport_command_to`.

There is an example in
<https://github.com/emilk/egui/tree/master/examples/multiple_viewports/src/main.rs>.

## For integrations
There are several changes relevant to integrations.

* There is a [`crate::RawInput::viewport`] with information about the
current viewport.
* The repaint callback set by `Context::set_request_repaint_callback`
now points to which viewport should be repainted.
* `Context::run` now returns a list of viewports in `FullOutput` which
should result in their own independant windows
* There is a new `Context::set_immediate_viewport_renderer` for setting
up the immediate viewport integration
* If you support viewports, you need to call
`Context::set_embed_viewports(false)`, or all new viewports will be
embedded (the default behavior).


## Future work
* Make it easy to wrap child viewports in the same chrome as
`egui::Window`
* Automatically show embedded viewports using `egui::Window`
* Use the new `ViewportBuilder` in `eframe::NativeOptions`
* Automatically position new viewport windows (they currently cover each
other)
* Add a `Context` method for listing all existing viewports

Find more at https://github.com/emilk/egui/issues/3556




---

<details>
<summary>
Outdated PR description by @konkitoman
</summary>


## Inspiration
- Godot because the app always work desktop or single_window because of
embedding
- Dear ImGui viewport system

## What is a Viewport

A Viewport is a egui isolated component!
Can be used by the egui integration to create native windows!

When you create a Viewport is possible that the backend do not supports
that!
So you need to check if the Viewport was created or you are in the
normal egui context!
This is how you can do that:
```rust
if ctx.viewport_id() != ctx.parent_viewport_id() {
    // In here you add the code for the viewport context, like
    egui::CentralPanel::default().show(ctx, |ui|{
        ui.label("This is in a native window!");
    });
}else{
    // In here you add the code for when viewport cannot be created!
   // You cannot use CentralPanel in here because you will override the app CentralPanel
   egui::Window::new("Virtual Viewport").show(ctx, |ui|{
       ui.label("This is without a native window!\nThis is in a embedded viewport");
   });
}
```

This PR do not support for drag and drop between Viewports!

After this PR is accepted i will begin work to intregrate the Viewport
system in `egui::Window`!
The `egui::Window` i want to behave the same on desktop and web
The `egui::Window` will be like Godot Window

## Changes and new

These are only public structs and functions!

<details>
<summary>

## New
</summary>

- `egui::ViewportId`
- `egui::ViewportBuilder`
This is like winit WindowBuilder

- `egui::ViewportCommand`
With this you can set any winit property on a viewport, when is a native
window!

- `egui::Context::new`
- `egui::Context::create_viewport`
- `egui::Context::create_viewport_sync`
- `egui::Context::viewport_id`
- `egui::Context::parent_viewport_id`
- `egui::Context::viewport_id_pair`
- `egui::Context::set_render_sync_callback`
- `egui::Context::is_desktop`
- `egui::Context::force_embedding`
- `egui::Context::set_force_embedding`
- `egui::Context::viewport_command`
- `egui::Context::send_viewport_command_to`
- `egui::Context::input_for`
- `egui::Context::input_mut_for`
- `egui::Context::frame_nr_for`
- `egui::Context::request_repaint_for`
- `egui::Context::request_repaint_after_for`
- `egui::Context::requested_repaint_last_frame`
- `egui::Context::requested_repaint_last_frame_for`
- `egui::Context::requested_repaint`
- `egui::Context::requested_repaint_for`
- `egui::Context::inner_rect`
- `egui::Context::outer_rect`

- `egui::InputState::inner_rect`
- `egui::InputState::outer_rect`

- `egui::WindowEvent`

</details>

<details>
<summary>

## Changes
</summary>

- `egui::Context::run`
Now needs the viewport that we want to render!

- `egui::Context::begin_frame`
Now needs the viewport that we want to render!

- `egui::Context::tessellate`
Now needs the viewport that we want to render!

- `egui::FullOutput`
```diff
- repaint_after
+ viewports
+ viewport_commands
```

- `egui::RawInput`
```diff
+ inner_rect
+ outer_rect
```

- `egui::Event`
```diff
+ WindowEvent
```
</details>

### Async Viewport

Async means that is independent from other viewports!

Is created by `egui::Context::create_viewport`

To be used you will need to wrap your state in `Arc<RwLock<T>>`
Look at viewports example to understand how to use it!

### Sync Viewport

Sync means that is dependent on his parent!

Is created by `egui::Context::create_viewport_sync`

This will pause the parent then render itself the resumes his parent!

#### ⚠️ This currently will make the fps/2 for every sync
viewport

### Common

#### ⚠️ Attention

You will need to do this when you render your content
```rust
ctx.create_viewport(ViewportBuilder::new("Simple Viewport"), | ctx | {
    let content = |ui: &mut egui::Ui|{
        ui.label("Content");
    };

    // This will make the content a popup if cannot create a native window
    if ctx.viewport_id() != ctx.parent_viewport_id() {
        egui::CentralPanel::default().show(ctx, content);
    } else {
        egui::Area::new("Simple Viewport").show(ctx, |ui| {
            egui::Frame::popup(ui.style()).show(ui, content);
        });
    };
});
````

## What you need to know as egui user

### If you are using eframe

You don't need to change anything!

### If you have a manual implementation

Now `egui::run` or `egui::begin` and `egui::tessellate` will need the
current viewport id!
You cannot create a `ViewportId` only `ViewportId::MAIN`

If you make a single window app you will set the viewport id to be
`egui::ViewportId::MAIN` or see the `examples/pure_glow`
If you want to have multiples window support look at `crates/eframe`
glow or wgpu implementations!

## If you want to try this

- cargo run -p viewports

## This before was wanted to change

This will probably be in feature PR's

### egui::Window

To create a native window when embedded was set to false
You can try that in viewports example before:
[78a0ae8](78a0ae879e)

### egui popups, context_menu, tooltip

To be a native window

</details>

---------

Co-authored-by: Konkitoman <konkitoman@users.noreply.github.com>
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
Co-authored-by: Pablo Sichert <mail@pablosichert.com>
2023-11-16 11:25:05 +01:00
Emil Ernerfeldt b27aa27e94
Add `emath::Vec2b`, replacing `egui_plot::AxisBools` (#3543)
Thanks to `impl From<bool> for Vec2b` one can now shorten some builder
calls, like:

Previous:
```rust
 egui::ScrollArea::vertical()
        .auto_shrink([false; 2])
```

New:
```rust
 egui::ScrollArea::vertical()
        .auto_shrink(false)
```
2023-11-11 21:31:36 +01:00
YgorSouza 59b4eff83d
Fix broken doc links in the demo app widget gallery (#3441)
* Closes <https://github.com/emilk/egui/issues/3439>
2023-11-10 21:39:49 +01:00
Emil Ernerfeldt 41f9df5cb3
Floating scroll bars (#3539)
* Move scroll bar spacing settings to a `struct ScrollSpacing`

* Add a demo for changing scroll bar appearance

* Add setting for ScrollBarVisibility in demo

* Add `#[inline]` to a `ScrollArea` builder methods

* Refactor how scroll bar show/hide is computed

* Add support for floating scroll bars

* Tweak color and opacity of the scroll handle

* Allow allocating a fixed size even for floating scroll bars

* Add three pre-sets of scroll bars: solid, thin, floating

* Use floating scroll bars as the default

* Fix id-clash with bidir scroll areas

* Improve demo

* Fix doclink

* Remove reset button from demo

* Fix doclinks

* Fix visual artifact with thin rounded rectangles

* Fix doclink

* typos
2023-11-09 18:41:58 +01:00
Emil Ernerfeldt 5a0186fa2b Release 0.23.0 - New image API 2023-09-28 08:44:33 +02:00
Emil Ernerfeldt a128b10ef4 Update Rerun.io logo and copy 2023-09-27 15:27:51 +02:00
Emil Ernerfeldt 8ef443948f
Improve the About windows in the demo library (#3400)
* Tweak size of rerun logo

* Move history of immediate mode to docs

* Add link to Rerun.io from demo-lib's About window
2023-09-27 11:38:52 +02:00
Emil Ernerfeldt 1b18f8e266
Add `Area::constrain_to` and `Window::constrain_to` (#3396)
* Rename `drag_bounds` to `constrain_to`

and allow turning off constraining for `Window`s

* Constrain DatePicker popup to screen

* Fix typo
2023-09-27 08:40:24 +02:00
Emil Ernerfeldt 23ce4e70ca
Add option to show a callstack to the widget under the mouse (#3391) 2023-09-26 15:50:35 +02:00
Emil Ernerfeldt 99a1b5b62e
Add `Context::open_url` and `Context::copy_text` (#3380)
* Add Context::open_url

* Add `Context::copy_text`

* Fix doctest

* Fix another doctest
2023-09-24 09:31:21 +02:00
Emil Ernerfeldt 33a0f50f6a
Improve text truncation: always include elision character (#3366)
* Add Row::text

* Rename elide_at_width -> truncate_at_width

* Move text layout tests to own module

* Add test to check that elision character is always included

* Include elision character in more circumstances

* Append overflow character if we can't replace

* Always append … when eliding

* Add a secondary text to the text layout demo
2023-09-21 10:41:49 +02:00
Emil Ernerfeldt d7d222d3f6
Polish image API (#3338)
* Imoprove docs for callback shapes

* Improve docs for loader traits

* Use snake_case for feature `all_loaders`

* Make loaders publix

* Slightly better error message on image load failure

* Improve image loading error messages

* Use `bytes://` schema for included bytes loader

* Try user loaders first

* Move `image_loading_spinners` to `Visuals`

* Unify and simplify code

* Make the main text of `Button` optional

This largely makes ImageButton obsolete

* Fix docstrings

* Better docs

* typos

* Use the more explicit `egui_extras::install_image_loaders`

* Simplify `Image::paint_at` function
2023-09-14 16:33:10 +02:00
Emil Ernerfeldt 5e785ae00a
Add syntax highlighing feature to `egui_extras` (#3333)
* Add syntax highlighing feature to egui_extras

Enable "syntect" feature for great syntax highlighting of any language.

If not a simple fallback is used that works fine for C++, Rust, Python

* Check --no-default-features of egui_extras on CI

* spelling

* Fix building egui_extras without additional features
2023-09-13 20:39:40 +02:00
Jan Procházka 67a3fcae38
Final polish for new image loading (#3328)
* add egui logo to widget gallery

* improve "no image loaders" error message

* rework static URIs to accept `Cow<'static>`

* remove `RetainedImage` from `http_app` in `egui_demo_app`

* hide `RetainedImage` from docs

* use `ui.image`/`Image` over `RawImage`

* remove last remanant of `RawImage`

* remove unused doc link

* add style option to disable image spinners

* use `Into<Image>` instead of `Into<ImageSource>` to allow configuring the underlying image

* propagate `image_options` through `ImageButton`

* calculate image size properly in `Button`

* properly calculate size in `ImageButton`

* Update crates/egui/src/widgets/image.rs

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>

* improve no image loaders error message

* add `size()` helper to `TexturePoll`

* try get size from poll in `Button`

* add `paint_at` to `Spinner`

* use `Spinner::paint_at` and hover on image button response

* `show_spinner` -> `show_loading_spinner`

* avoid `allocate_ui` in `Image` when painting spinner

* make icon smaller + remove old texture

* add `load_and_calculate_size` + expose `paint_image_at`

* update `egui_plot` to paint image in the right place

* Add helpers for painting an ImageSource directly

* Use max_size=INF as default

* Use new API in WidgetGallery

* Make egui_demo_app work by default

* Remove Option from scale

* Refactor ImageSize

* Fix docstring

* Small refactor

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2023-09-13 16:27:08 +02:00
Jan Procházka 2bc6814acc
Improved texture loading (#3315)
* rework loading around `Arc<Loaders>`

* use `Bytes` instead of splitting api

* remove unwraps in `texture_handle`

* make `FileLoader` optional under `file` feature

* hide http load error stack trace from UI

* implement image fit

* support more image sources

* center spinner if we know size ahead of time

* allocate final size for spinner

* improve image format guessing

* remove `ui.image`, `Image`, add `RawImage`

* deprecate `RetainedImage`

* `image2` -> `image`

* add viewer example

* update `examples/image` + remove `svg` and `download_image` exapmles

* fix lints and tests

* fix doc link

* add image controls to `images` example

* add more `From` str-like types

* add api to forget all images

* fix max size

* do not scale original size unless necessary

* fix doc link

* add more docs for `Image` and `RawImage`

* make paint_at `pub`

* update `ImageButton` to use new `Image` API

* fix double rendering

* `SizeHint::Original` -> `Scale` + remove `Option` wrapper

* Update crates/egui/src/load.rs

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>

* remove special `None` value for `forget`

* Update crates/egui/src/load.rs

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>

* add more examples to `ui.image` + add `include_image` macro

* Update crates/egui/src/ui.rs

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>

* update `menu_image_button` to use `ImageSource`

* `OrderedFloat::get` -> `into_inner`

* derive `Eq` on `SizedTexture`

* add `id` to loaders + `is_installed` check

* move `images` to demo + simplify `images` example

* log trace when installing loaders

* fix lint

* fix doc link

* add more documentation

* more `egui_extras::loaders` docs

* Update examples/images/src/main.rs

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>

* update `images` example screenshots + readme

* remove unused `rfd` from `images` example

* Update crates/egui_extras/src/loaders/ehttp_loader.rs

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>

* add `must_use` on `Image` and `RawImage`

* document `loaders::install` multiple call safety

* Update crates/egui_extras/Cargo.toml

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>

* reshuffle `is_loader_installed`

* make `include_image` produce `ImageSource` + update docs

* update `include_image` docs

* remove `None` mentions from loader `forget`

* inline `From` texture id + size for `SizedTexture`

* add warning about statically known path

* change image load error + use in image button

* add `.size()` to `Image`

* Update crates/egui_demo_app/Cargo.toml

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>

* add explanations to image viewer ui

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2023-09-12 10:39:17 +02:00
Emil Ernerfeldt 46ea72abe4
Add control of line height and letter spacing (#3302)
* Add `TextFormat::extra_letter_spacing`

* Add control of line height

* Add to text layout demo

* Move the text layout demo to its own window in the demo app

* Fix doclink

* Better document points vs pixels

* Better documentation and code cleanup
2023-09-05 10:45:11 +02:00
Emil Ernerfeldt 7b169ec13d
Break out plotting to own crate `egui_plot` (#3282)
This replaces `egui::plot` with the new crate `egui_plot`
2023-08-27 17:22:49 +02:00
David M. Lary 32a63da580
Added Context::is_context_menu_open() (#3267)
I encountered a case where I needed to know if an egui context menu was
open, even if the mouse cursor was not in an egui area (full details in
discord).  I found that every resource I needed to detect that the menu
was open was either private, or pub(crate).  While it is possible to
wrap the `Response::context_menu()` in code to do state-tracking, it
becomes necessary to duplicate that code in every place you use a
context menu.

In this commit, I add `Context::is_context_menu_open()`.  Named similarly
to `Context::is_pointer_over_area()`, this method will return true if
any context menu is open.  This is possible because the context menu
uses a temp var with a fixed Id to store its state.  This method just
fetches the state, and interrogates it to see if there is a menu
present.

One helper method, `BarState::has_root()`, was added as all the fields
needed to perform the check were private to the `menu` module.

I've also updated the Context Menu demo to show the result of
`is_context_menu_open()` to verify the code functions as expected.
2023-08-22 15:35:15 +02:00
Emil Ernerfeldt 3c4223c6b1
Support images with rounded corners (#3257)
* Add `Rect::ZERO`

* Add `Rounding::ZERO`

* Add `RectShape::new`

* Add `Image::rounding` to support images with rounded corners
2023-08-15 09:29:30 +02:00
JohannesProgrammiert dbe55ba46a
Draw axis labels and ticks outside of plotting window (#2284)
* Always draw axis labels at plot borders

* Revert "Always draw axis labels at plot borders"

This reverts commit 9235e6603366d3b8a8189e2a5fc28c9780b7f54f.

* Add axis labels for plots

* First Draft of axis labels outside of plotting window

* plot: Tick placement of opposite axes and digit constraints

* plot: Axis label API

* plot: Update demo lib

* plot: resolve clippy warning

* Update changelog

* Remove default axis

* Fix clippy

* plot: Remove unused comments

* plot-axis: Rebase label opacity calculation on master

* plot: Resolve check.sh warnings

* plot-axis: Use 'into impl<WidgetText>' as axis label formatter

* plot-axis: Expose more conveniece functions to public API. Add axis labels to demo app

* plot-axes: Resolve ./scripts/check.sh warnings

* typo in comment

* Use `TAU` instead of the legacy `PI`

* Simpler generic syntax

* Use `Arc` to avoid some expensive clones

* Use `Margin` instead of a,b,c,d

* Add some vertical spacing

* De-duplicate color_from_contrast

* better naming

* Fix typos

* cnt -> num

* Axis are present by default, with empty names

* Add HPlacement and VPlacement

* Don't catch clicks and drags on axes

* Remove generics to minimize monomorphization code bloat

* Create helper function

* Remove changelog entry

* Simplify more

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2023-08-14 17:51:17 +02:00
Emil Ernerfeldt a3ae81cadb
Add option to truncate text at wrap width (#3244)
* Add option to clip text to wrap width

* Spelling

* Better naming, and report back wether the text was elided

* Improve docstrings

* Simplify

* Fix max_rows with multiple paragraphs

* Add note

* Typos

* fix doclink

* Add `Label::elide`

* Label: show full non-elided text on hover

* Add demo of `Label::elide`

* Call it `Label::truncate`

* Clarify limitations of `break_anywhere`

* Better docstrings
2023-08-14 11:22:04 +02:00
Emil Ernerfeldt 08fb447fb5
Increase MSRV to 1.67 (#3234)
* Bump MSRV to 1.67

* clippy fixes

* cargo clippy: inline format args

* Add `clippy::uninlined_format_args` to cranky lints

* Fix clippy on wasm

* More clippy fixes
2023-08-11 13:54:02 +02:00
Emil Ernerfeldt 66cbb61ad5
Add `PlotUi::response()` to replace `plot_clicked()` etc (#3223)
Closes https://github.com/emilk/egui/pull/2571
2023-08-10 13:14:19 +02:00
Valeriy V. Vorotyntsev 4c3b380889
Fix the "ever-growing height" problem of Strip and Table demos (#3122)
* Fix the "ever-growing height" problem of Strip and Table Demos

Problem
-------

The height of "Table Demo" or "Strip Demo" floating window grows
when the demo app is interacted with. If 'Continuous' mode is enabled
in 'Backend' settings, the window grows irrespectively of user interaction.

Observations
------------

I noticed that [`area_content_ui.min_rect().max.y`][1] is increasing
monotonically with speed 0.5 px/frame.

I also noticed that commenting out `ui.add(crate::egui_github_link_file!());`
[statement][2] in `table_demo.rs` makes the problem disappear.

The "Fix"
---------

I added 0.5 to the height of the row with GitHub link.
This solved the problem.

Closes #3029.

Warning
-------

I failed to find the root cause of the problem.
I don't understand why this change makes the problem disappear.

[1]: 9478e50d01/crates/egui/src/containers/window.rs (L403)
[2]: 9478e50d01/crates/egui_demo_lib/src/demo/table_demo.rs (L114)

* Document `Rect::size`

Other changes:

- `area.rs`: Use existing API.
- `table_demo.rs`: Remove unnecessary call.
2023-08-10 12:35:40 +02:00
Forest Anderson 936c9583b5
Spelling fix (#3133) 2023-07-26 19:00:51 +02:00
Emil Ernerfeldt 4d357b0f02 clippy fixes from 1.69.0 2023-04-21 11:33:18 +02:00
Emil Ernerfeldt d46cf067ea
Return plot transforms (#2935)
* Expose the plot transform to users

* Rename plot::ScreenTransform to PlotTransform

* Plot: return a PlotResponse with a transform member
2023-04-19 17:01:16 +02:00
Emil Ernerfeldt b8e798777d
Only show id clash warnings in debug builds by default (#2930)
Change with `egui_ctx.options_mut(|opt| opt.warn_on_id_clash = true);`
2023-04-19 08:53:37 +02:00
Jackson Kruger 438f6eafc8
Plot widget - allow disabling zoom and drag for x and y separately (#2901)
* Set whether zooming allowed for x and y separately

* Set whether dragging allowed for x and y separately

* Add disclaimers about interaction with data_aspect

* Show zoom & drag behavior in plot demo/charts instead of context menu demo

* Code review suggestions - use AxisBools::any()

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>

* Simplify allow_drag and allow_zoom APIs to take in Into<AxisBools>

* Remove unnecessary using...

* Remove unrelated change

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2023-04-18 19:58:19 +02:00
Sven Niederberger 69b568aeb4
Improved plot groups and bounds handling (#2410)
* improve plot groups and bounds handling

* changelog entry

* fix potential deadlock

* fix two more potential deadlocks

* syntax fix

* move changelog entry

* move category

* Update crates/egui/src/widgets/plot/mod.rs

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>

* Update crates/egui_demo_lib/src/demo/plot_demo.rs

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>

* clean up suggestions

* address comments

* use the new methods

* fix locked bounds

* Sync bounds_modified along with the bounds themselves

* move changelog entry

* Remove set_bounds_auto - not necessary any more

* add a comment about bounds modifications

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
Co-authored-by: Jackson Kruger <jackson@farprobe.com>
2023-04-18 16:27:00 +02:00
Emil Ernerfeldt 4809747952
Check for typos on CI (#2918)
* Check for typos on CI

* Fix all typos
2023-04-18 16:10:20 +02:00
Jozef Číž 33aa4d698f
Fix typos (#2866)
* Fix typos in comments

* Fix typos in demo texts

* Fix typos in code names

* Fix typos in cargos

* Fix typos in changelogs
2023-04-18 15:52:45 +02:00
Boris-Chengbiao Zhou 8eeb3e0d28
Fix resizable columns option in the table demo (#2780) 2023-03-29 15:53:56 +02:00
YgorSouza 8ec9233e28
Add #![forbid(unsafe_code)] where unsafe isn't needed (#2773)
To be consistent with the use of the safety badge in the README.
2023-03-29 14:39:51 +02:00
lictex_ 94f8b02286
improve fallback fonts alignment (#2724)
* use font metrics in layout

* properly center scaled fonts

* adjust docs

* fix raised text

* fix easymark viewer small text alignment
caused by variable row heights
2023-03-29 14:36:09 +02:00
hinto-janaiyo 628c84cbee
Add `trailing_fill()` toggle to `Slider` (#2660)
* slider: add trailing_color toggle

* slider/visuals: add global option in visuals with override toggle

* slider: add to demos

* use `.unwrap_or_else()` instead of match
2023-02-05 08:17:58 +01:00
Emil Ernerfeldt a6b60d5d58
Control `Separator` widths, and less clipping in `ScrollArea` (#2665)
* Add Separator::grow and Separator::shrink

* Be more conservative with the clipping in ScrollArea:s

* Add test of the growing separator

* Improve test output

* Update changelog

* Add back a little bit more clipping

* Make the minimum scroll handle length a bit longer

* More clip rect tweaks
2023-02-03 13:19:25 +01:00
Emil Ernerfeldt c72bdb77b5
Add ability to highlight any widget (#2632)
* Add ability to highlight any widget

* Add line to changelog

* Demote the demo to a test
2023-01-27 23:36:14 +01:00
Emil Ernerfeldt 8ce0e1c520
Avoid deadlocks by using lambdas for context lock (#2625)
ctx.input().key_pressed(Key::A) -> ctx.input(|i| i.key_pressed(Key::A))
2023-01-25 10:24:23 +01:00
Emil Ernerfeldt 4bd4eca2e4
Add ability to hide button backgrounds (#2621)
* Add Spacing::combo_width

* Put ComboBox arrow closer to the text

* Tweak faint_bg_color

* Make it possible to have buttons without background

…while still having background for sliders, checkboxes, etc

* Rename mandatory_bg_fill -> bg_fill

* tweak grid stripe color (again)

* Make the animated part of the ProgressBar more visible

* Add line in changelog

* Add another line in changelog

* Menu fix: use the `open` widget style for open menus

* Adjust sizes on menu buttons and regular buttons to make sure they match

* Update comment

Co-authored-by: Andreas Reich <andreas@rerun.io>

* optional_bg_fill -> weak_bg_fill

Co-authored-by: Andreas Reich <andreas@rerun.io>
2023-01-24 10:11:05 +01:00
Emil Ernerfeldt a68c891092 Improve choice of number of decimals to show when hovering in plot 2022-12-20 15:27:01 +01:00
Emil Ernerfeldt 99af63fad2
Add `Plot::clamp_grid` (#2480)
* Add Plot::clamp_grid

* Update changelog
2022-12-19 11:39:22 +01:00
Emil Ernerfeldt e0b5bb17e5
Improve the look of thin lines, making them look weaker (#2437)
* Revert "fix all clippy lints and remove them from allow list in cranky (#2419)"

This reverts commit 930ef2db38.

* Explain the cranky lints better

* Add Color32::gamma_multiply

* Remove unused pub use

* Remove non-existing crate category

* Improve color test with more lines

* Improve the look of thin lines, making them look weaker

Before they looked were too strong for the thickness.

* Use asserts for shader compilations

* Update changelogs
2022-12-12 16:18:05 +01:00
Emil Ernerfeldt da0a178701
Style tweaks (#2406)
* Note the namechange of egui::color to egui::ecolor

* Use a solid triangle for collapsing headers and windows

* Add Shadow::NONE

* Add Visuals::panel_fill, window_fill and window_stroke

* Bug fix: ComboBox::width sets the outer width of the ComboBox

* egui_extras::Table: add functions to access the `Ui` for the header/body

* ComboBox: use solid triangle

* Tweak default menu margin

* Nudge panel separator lines so they stay visible

* Update changelogs
2022-12-08 10:55:13 +01:00
Andreas Reich 5effc68ba4
Split out ecolor crate (#2399)
* split out ecolor crate

* split up ecolor crate in lots of modules

* add changelog notes

* add readme to ecolor

* put clippy::manual_range_contains on cranky allow list

* fix hex color issues

* doc fixes

* more hex_color fixes

* Document features

* Rename hex_color module to avoid warning

* Sort the feature names

* fix link in CHANGELOG.md

* better wording

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2022-12-06 20:42:25 +01:00
René Rössler c3932f7f7f
Chrono update (#2397)
* limit day to last day of month if the month or year is changed

* update chrono to 0.4.23, switch to NaiveDate and remove use of deprecated functions.
2022-12-06 11:42:53 +01:00
Emil Ernerfeldt b8a1670781 Change demo keyboard shortcuts to some that work in the browser 2022-12-05 17:57:11 +01:00
Emil Ernerfeldt a86ec5a749 Remove extra separator in color test 2022-12-05 17:38:38 +01:00
Emil Ernerfeldt be6d23eed1 Replace `Stroke::none()` with `Stroke::NONE` 2022-12-05 12:59:02 +01:00
Emil Ernerfeldt 5093b67e9b Enable and fix some more clippy lints 2022-12-05 09:29:59 +01:00
Emil Ernerfeldt 7133818c59
Make sure scroll bars are always visible (#2371)
* Nicer debug rectangles

* Move scrollbars into the clip-rect so they are always visible

* Improve table demo

* Add options for controlling inner and outer margin of the scroll bars

* Add line to changelog

* Update egui_extras changelog with recent Table improvements

* Refactor Table:s scroll options

* Add Table::auto_size

* Rename it auto_shrink
2022-11-30 22:58:00 +01:00
Emil Ernerfeldt 2dc2a5540d
`egui_extras::Table` improvements (#2369)
* Use simple `ui.interact` for the resize line

* Introduce TableReizeState

* Simplify some code

* Add striped options to table demo

* Auto-size table columns by double-clicking the resize line

* Table: add option to auto-size the columns

* Table: don't let column width gets too small, unless clipping is on

* egui_extras: always use serde

Otherwise using `get_persisted` etc is impossible,
and working around that tedious.

* Avoid clipping last column in a resizable table

* Some better naming

* Table: Use new `Column` for setting column sizes and properties

Also make `clip` a per-column property

* All Table:s store state for auto-sizing purposes

* Customize each column wether or not it is resizable

* fix some auto-sizing bugs

* Fix shrinkage of adaptive column content

* Rename `scroll` to `vscroll` for clarity

* Add Table::scroll_to_row

* scroll_to_row takes alignment

* Fix bug in table sizing

* Strip: turn clipping OFF by default, because it is dangerous and sucks

* Add TableBody::mac_rect helper

* Table: add options to control the scroll area height.

* Docstring fixes

* Cleanup
2022-11-30 19:56:06 +01:00
Max Wase 22a917c00a
`Painter` extend accepts `IntoIter` (#2249)
* `Painter` extend accepts `IntoIter`

* Update painter.rs
2022-11-07 09:32:28 +01:00
Emil Ernerfeldt a0b3f1126b
Add helpers for zooming an app using Ctrl+Plus and Ctrl+Minus (#2239)
* Using tracing-subscriber in hello_world example

* Add Key::Plus/Minus/Equals

* Warn if failing to guess OS from User-Agent

* Remove jitter when using Context::set_pixels_per_point

* Demo app: zoom in/out using ⌘+ and ⌘-

* Demo app: make backend panel GUI scale slider better

* Optimize debug builds a bit

* typo

* Update changelog

* Add helper module `egui::gui_zoom` for zooming an app

* Better names, and update changelog

* Combine Plus and Equals keys

* Last fix

* Fix docs
2022-11-05 11:18:13 +01:00
Emil Ernerfeldt 34e6e12f00
Specify deifferent minification and magnification filters (#2224)
* Specify deifferent minification and magnification filters

* Fixes

* Update changelogs

* Doctest fixes

* Add deprecation notice for RetainedImage::with_texture_filter
2022-11-02 17:54:06 +01:00
Emil Ernerfeldt 02b9d2d082
Keyboard shortcut helpers (#2202)
* eframe web: Add WebInfo::user_agent

* Deprecate `Modifier::ALT_SHIFT`

* Add code for formatting Modifiers and Key

* Add type KeyboardShortcut

* Code cleanup

* Add Context::os/set_os to query/set what OS egui believes it is on

* Add Fonts::has_glyph(s)

* Add helper function for formatting keyboard shortcuts

* Faster code

* Add way to set a shortcut text on menu buttons

* Cleanup

* format_keyboard_shortcut -> format_shortcut

* Add TODO about supporting more keyboard sumbols

* Modifiers::plus

* Use the new keyboard shortcuts in emark editor demo

* Explain why ALT+SHIFT is a bad modifier combo

* Fix doctest
2022-10-31 12:58:26 +01:00