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Vendor dependencies for 0.3.0 release

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Robert Garrett
2025-09-27 10:29:08 -05:00
parent 0c8d39d483
commit 82ab7f317b
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vendor/orbclient/.cargo-checksum.json vendored Normal file
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# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## unreleased
* Replaced `no_std` feature with `std` feature, selected by default
* `no_std` environments are now built by setting `default-features = false`
* Added new `sdl` feature for building SDL2 without bundling
* Included by `bundled`, so only one or the other needs to be selected
## 0.3.35
* Better fix for macOS builds
## 0.3.34
* Pin SDL2 for macOS compatibility
## 0.3.33
* Support multi-character SDL text input
## 0.3.32
* Change Rust edition from 2015 to 2018
* Change `Color` from `repr(packed)` to `repr(transparent)`
* Fix compiling against wayland > 1.20.0
## 0.3.31
* Web support
## 0.3.28
* Add sdl2 bundled and static feature
* Add HiDPi support for sdl2 sys
* Add DropEvent (file | text) for sdl2 sys
* Add raw-window-handle implementation for sdl2
* Add TextInputEvent

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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2018"
name = "orbclient"
version = "0.3.48"
authors = ["Jeremy Soller <jackpot51@gmail.com>"]
build = "build.rs"
autobins = false
autoexamples = false
autotests = false
autobenches = false
description = "The Orbital Client Library"
documentation = "https://docs.rs/orbclient"
readme = "README.md"
keywords = [
"orbital",
"redox",
"ui",
]
license = "MIT"
repository = "https://gitlab.redox-os.org/redox-os/orbclient"
[lib]
name = "orbclient"
path = "src/lib.rs"
[[example]]
name = "image_bench"
path = "examples/image_bench.rs"
[[example]]
name = "rect_bench"
path = "examples/rect_bench.rs"
[[example]]
name = "simple"
path = "examples/simple.rs"
[dev-dependencies.serde_derive]
version = "=1.0.197"
[dev-dependencies.toml]
version = "0.7"
[features]
bundled = [
"sdl",
"sdl2/bundled",
"sdl2/static-link",
"sdl2-sys/bundled",
"sdl2-sys/static-link",
]
default = [
"std",
"sdl",
"unifont",
]
sdl = [
"sdl2",
"sdl2-sys",
"libc",
]
std = []
unifont = []
[target.'cfg(not(target_os = "redox"))'.dependencies.libc]
version = "0.2"
optional = true
[target.'cfg(not(target_os = "redox"))'.dependencies.raw-window-handle]
version = "0.5.2"
optional = true
[target.'cfg(not(target_os = "redox"))'.dependencies.sdl2]
version = "0.35.2"
optional = true
[target.'cfg(not(target_os = "redox"))'.dependencies.sdl2-sys]
version = "0.35.2"
optional = true
[target.'cfg(target_os = "redox")'.dependencies.libredox]
version = "0.1"

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The MIT License (MIT)
Copyright (c) 2015-2019 Jeremy Soller
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# orbclient
The Orbital Client Library. Compatible with Redox and SDL2 (on Linux and Macos).
[![Build status](https://gitlab.redox-os.org/redox-os/orbclient/badges/master/pipeline.svg)](https://gitlab.redox-os.org/redox-os/orbclient/pipelines)
[![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](./LICENSE)
[![crates.io](http://meritbadge.herokuapp.com/orbclient)](https://crates.io/crates/orbclient)
[![docs.rs](https://docs.rs/orbclient/badge.svg)](https://docs.rs/orbclient)
## Dependencies
If you are *NOT* using the "bundled" feature (which is off by default) then you need SDL (sdl2)
installed on your system.
### macos
On macos you can install the SDL2 library using `brew install sdl2`
## Features
The `"serde"`feature can be used to include code for `Color` deserialization using the `serde` crate (which is an
optional dependency). This is not enabled by default. To enable, either build using the `--features "serde"` command
line option, or use `features = ["serde"]` in your crate, where it declares a dependency on orbclient.
The `std` feature is used to allow building `orbclient` with our without rust `std`.
This is to enable use by some UEFI apps (e.g. System76 firmware setup, System76 firmware updater) that don't have `std`.
The `"unifont` feature (on by default is used to include the "unifont" font).
The `bundled` feature removes the need to have SDL2 installed locally. The SDL library is compiled from source
as part of the crate build and bundled with it.
### Troubleshooting
* Make sure that you work with the current ```nightly``` version of Rust
* To make sure of that, please use [rustup](https://github.com/rust-lang-nursery/rustup.rs)
* Don't forget to override your work directory with ```rustup override set nightly```
* Don't forget to update the ```nightly``` version of Rust with ```rustup update nightly```
* SDL2 should be automatically with orbclient if you have trouble try to install it ```libsdl2-dev``` manually
* For example, with Ubuntu, please to type ```sudo apt-get install libsdl2-dev``` in your console
* On fedora please type ```sudo dnf install SDL2-devel SDL2-static``` in your console before building.
* if during building, this message comes up ```could not find native static library `SDL2main`, perhaps an -L flag is missing?```.
Providing the path to the static library might help. You can provide this path via ```RUSTFLAGS='-L <path-to-folder-with-libSDL2.a>' cargo b ...```.
At the moment of writing, the SDL2 library is stored under **/usr/lib64** on fedora. In this case you would type ```RUSTFLAGS='-L /usr/lib64' cargo r --example simple```
to start the simple example.
* Other problem? Do not hesitate to create a new issue!

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fn main() {
if std::env::var("CARGO_CFG_TARGET_OS") == Ok("macos".to_string()) {
println!("cargo:rustc-link-lib=framework=CoreHaptics");
}
}

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// SPDX-License-Identifier: MIT
use orbclient::{Color, EventOption, Renderer, Window};
const TIMES: usize = 10;
macro_rules! time {
($msg:tt, $block: block) => ({
let _time_instant = ::std::time::Instant::now();
$block
let _time_duration = _time_instant.elapsed();
let _time_fractional = _time_duration.as_secs() as f64
+ (_time_duration.subsec_nanos() as f64)/1000000000.0;
println!(
"{}: {} ms",
$msg,
_time_fractional * 1000.0
);
});
}
fn main() {
//let (width, height) = orbclient::get_display_size().unwrap();
let mut window = Window::new(10, 10, 800, 600, "IMAGE BENCHMARK").unwrap();
window.set(Color::rgb(255, 255, 255));
//create image data : a green square
let data = vec![Color::rgba(100, 200, 10, 20); 412500];
let data2 = vec![Color::rgba(200, 100, 10, 20); 412500];
let data3 = vec![Color::rgba(10, 100, 100, 20); 412500];
let data4 = vec![Color::rgba(10, 100, 200, 20); 480000];
//draw image benchmarking
println!("Benchmarking implementations to draw an image on window:");
time!("image_legacy", {
for _i in 0..TIMES {
window.image_legacy(15, 15, 750, 550, &data[..]);
}
});
time!("image_fast", {
for _i in 0..TIMES {
window.image_fast(20, 20, 750, 550, &data2[..]);
}
});
time!("image_opaque", {
for _i in 0..TIMES {
window.image_opaque(50, 50, 750, 550, &data3[..]);
}
});
time!("image_over", {
for _i in 0..TIMES {
window.image_over(50, &data4[..360000]);
}
});
println!("------------------------------------------------");
window.sync();
'events: loop {
for event in window.events() {
match event.to_option() {
EventOption::Quit(_quit_event) => break 'events,
EventOption::Mouse(evt) => println!(
"At position {:?} pixel color is : {:?}",
(evt.x, evt.y),
window.getpixel(evt.x, evt.y)
),
event_option => println!("{:?}", event_option),
}
}
}
}

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// SPDX-License-Identifier: MIT
use orbclient::{Color, EventOption, Renderer, Window};
macro_rules! time {
($msg:tt, $block: block) => ({
let _time_instant = ::std::time::Instant::now();
$block
let _time_duration = _time_instant.elapsed();
let _time_fractional = _time_duration.as_secs() as f64
+ (_time_duration.subsec_nanos() as f64)/1000000000.0;
println!(
"{}: {} ms",
$msg,
_time_fractional * 1000.0
);
});
}
fn main() {
let mut window = Window::new(10, 10, 800, 600, "RECTANGLE BENCHMARK").unwrap();
time!("set", { window.set(Color::rgb(255, 255, 255)) });
time!("rect 400x400", {
window.rect(0, 0, 400, 400, Color::rgb(0, 0, 255))
});
time!("rect 200x200", {
window.rect(0, 0, 200, 200, Color::rgb(0, 255, 0))
});
time!("rect 100x100", {
window.rect(0, 0, 100, 100, Color::rgb(255, 0, 0))
});
time!("sync", {
window.sync();
});
'events: loop {
for event in window.events() {
#[allow(clippy::single_match)]
match event.to_option() {
EventOption::Quit(_quit_event) => break 'events,
_ => (),
}
}
}
}

145
vendor/orbclient/examples/simple.rs vendored Normal file
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// SPDX-License-Identifier: MIT
use orbclient::{Color, EventOption, GraphicsPath, Mode, Renderer, Window};
fn main() {
let (width, height) = orbclient::get_display_size().unwrap();
let mut window = Window::new(
(width as i32) / 4,
(height as i32) / 4,
width / 2,
height / 2,
"TITLE",
)
.unwrap();
let (win_w, win_h) = (width / 2, height / 2);
// top left -> bottom rigth
window.linear_gradient(
0,
0,
win_w / 3,
win_h,
0,
0,
(win_w / 3) as i32,
(win_h / 2) as i32,
Color::rgb(128, 128, 128),
Color::rgb(255, 255, 255),
);
// horizontal gradient
window.linear_gradient(
(win_w / 3) as i32,
0,
win_w / 3,
win_h,
(win_w / 3) as i32,
0,
(2 * win_w / 3) as i32,
0,
Color::rgb(128, 255, 255),
Color::rgb(255, 255, 255),
);
// vertical gradient
window.linear_gradient(
(2 * win_w / 3) as i32,
0,
win_w / 3,
win_h,
(2 * win_w / 3) as i32,
0,
(2 * win_w / 3) as i32,
win_h as i32,
Color::rgb(0, 128, 0),
Color::rgb(255, 255, 255),
);
window.arc(100, 100, -25, 1 << 0 | 1 << 2, Color::rgb(0, 0, 255));
window.arc(100, 100, -25, 1 << 1 | 1 << 3, Color::rgb(0, 255, 255));
window.arc(100, 100, -25, 1 << 4 | 1 << 6, Color::rgb(255, 0, 255));
window.arc(100, 100, -25, 1 << 5 | 1 << 7, Color::rgb(255, 255, 0));
window.circle(100, 100, 25, Color::rgb(0, 0, 0));
window.circle(100, 101, -25, Color::rgb(0, 255, 0));
window.circle(220, 220, -100, Color::rgba(128, 128, 128, 80));
window.wu_circle(150, 220, 100, Color::rgba(255, 0, 0, 255));
window.line(0, 0, 200, 200, Color::rgb(255, 0, 0));
window.line(0, 200, 200, 0, Color::rgb(128, 255, 0));
// vertical and horizontal line test
window.line(100, 0, 100, 200, Color::rgb(0, 0, 255));
window.line(0, 100, 200, 100, Color::rgb(255, 255, 0));
window.wu_line(100, 220, 400, 250, Color::rgba(255, 0, 0, 255));
window.line(100, 230, 400, 260, Color::rgba(255, 0, 0, 255));
// path and bezier curve example draw a cloud
let mut cloud_path = GraphicsPath::new();
cloud_path.move_to(170, 80);
cloud_path.bezier_curve_to(130, 100, 130, 150, 230, 150);
cloud_path.bezier_curve_to(250, 180, 320, 180, 340, 150);
cloud_path.bezier_curve_to(420, 150, 420, 120, 390, 100);
cloud_path.bezier_curve_to(430, 40, 370, 30, 340, 50);
cloud_path.bezier_curve_to(320, 5, 250, 20, 250, 50);
cloud_path.bezier_curve_to(200, 5, 150, 20, 170, 80);
window.draw_path_stroke(cloud_path, Color::rgb(0, 0, 255));
// path and quadratic curve example draw a balloon
let mut balloon_path = GraphicsPath::new();
balloon_path.move_to(75, 25);
balloon_path.quadratic_curve_to(25, 25, 25, 62);
balloon_path.quadratic_curve_to(25, 100, 50, 100);
balloon_path.quadratic_curve_to(50, 120, 30, 125);
balloon_path.quadratic_curve_to(60, 120, 65, 100);
balloon_path.quadratic_curve_to(125, 100, 125, 62);
balloon_path.quadratic_curve_to(125, 25, 75, 25);
window.draw_path_stroke(balloon_path, Color::rgb(0, 0, 255));
window.char(200, 200, '═', Color::rgb(0, 0, 0));
window.char(208, 200, '═', Color::rgb(0, 0, 0));
// testing for non existent x,y position : does not panic but returns Color(0,0,0,0)
let _non_existent_pixel = window.getpixel(width as i32 + 10, height as i32 + 10);
// testing PartialEq for Color
if Color::rgb(11, 2, 3) == Color::rgba(1, 2, 3, 100) {
println!("Testing colors: they are the same!")
} else {
println!("Testing colors: they are NOT the same!")
}
//Draw a transparent rectangle over window content
// default mode is Blend
window.rect(250, 200, 80, 80, Color::rgba(100, 100, 100, 100));
//Draw an opaque rectangle replacing window content
window.mode().set(Mode::Overwrite); // set window drawing mode to Overwrite from now on
window.rect(300, 220, 80, 80, Color::rgb(100, 100, 100));
//Draw a hole in the window replacing alpha channel (Only in Orbital, not in SDL2)
window.rect(300, 100, 80, 80, Color::rgba(10, 10, 10, 1));
//Draw a transparent rectangle over window content
window.mode().set(Mode::Blend); //set mode to Blend fron now on
window.rect(200, 230, 80, 80, Color::rgba(100, 100, 100, 100));
//Draw a blured box over window content
window.box_blur(170, 100, 150, 150, 10);
//Draw a shadow around a box
window.box_shadow(170, 100, 150, 150, 0, 0, 20, Color::rgba(0, 0, 0, 255));
window.sync();
'events: loop {
for event in window.events() {
match event.to_option() {
EventOption::Quit(_quit_event) => break 'events,
EventOption::Mouse(evt) => println!(
"At position {:?} pixel color is : {:?}",
(evt.x, evt.y),
window.getpixel(evt.x, evt.y)
),
event_option => println!("{:?}", event_option),
}
}
}
}

371
vendor/orbclient/res/unifont-license.txt vendored Normal file
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@@ -0,0 +1,371 @@
LICENSE
-------
The source code for everything except the compiled fonts in this current
release is licensed as follows:
License for this current distribution of program source
files (i.e., everything except the fonts) is released under
the terms of the GNU General Public License version 2,
or (at your option) a later version.
See the section below for a copy of the GNU General Public License
version 2.
The license for the compiled fonts is covered by the above GPL terms
with the GNU font embedding exception, as follows:
As a special exception, if you create a document which uses this font,
and embed this font or unaltered portions of this font into the document,
this font does not by itself cause the resulting document to be covered
by the GNU General Public License. This exception does not however
invalidate any other reasons why the document might be covered by the
GNU General Public License. If you modify this font, you may extend
this exception to your version of the font, but you are not obligated
to do so. If you do not wish to do so, delete this exception statement
from your version.
See "http://www.gnu.org/licenses/gpl-faq.html#FontException" for more details.
GPL VERSION 2
-------------
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

BIN
vendor/orbclient/res/unifont.font vendored Normal file
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vendor/orbclient/res/unifont.hex vendored Normal file
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35
vendor/orbclient/res/unifont.rs vendored Normal file
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#![feature(str_checked_slicing)]
use std::fs::File;
use std::io::{BufRead, BufReader, Write};
fn main() {
let input = File::open("unifont.hex").unwrap();
let mut output = File::create("unifont.font").unwrap();
let mut count = 0;
for line_res in BufReader::new(input).lines() {
let line = line_res.unwrap();
let mut parts = line.split(":");
let num = u32::from_str_radix(parts.next().unwrap(), 16).unwrap();
while count < num {
output.write(&[0; 16]).unwrap();
count += 1;
}
assert_eq!(num, count);
let mut data = [0; 16];
let data_part = parts.next().unwrap();
for i in 0..data.len() {
let string = data_part.get(i * 2 .. i * 2 + 2).unwrap_or("00");
data[i] = u8::from_str_radix(string, 16).unwrap();
}
println!("{:>04X}:{:?}", num, data);
output.write(&data).unwrap();
count += 1;
}
}

22
vendor/orbclient/rustfmt.toml vendored Normal file
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max_width = 100
hard_tabs = false
tab_spaces = 4
newline_style = "Unix"
indent_style = "Block"
format_strings = false
empty_item_single_line = true
fn_single_line = false
where_single_line = false
imports_indent = "Visual"
imports_layout = "Mixed"
fn_args_density = "Tall"
brace_style = "SameLineWhere"
trailing_comma = "Vertical"
blank_lines_upper_bound = 1
blank_lines_lower_bound = 0
force_explicit_abi = true
disable_all_formatting = false
skip_children = false
hide_parse_errors = false
report_todo = "Never"
report_fixme = "Never"

218
vendor/orbclient/src/blur.rs vendored Normal file
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// SPDX-License-Identifier: MIT
/*
Inspired from http://blog.ivank.net/fastest-gaussian-blur.html the algorithm 4.
The struct MathColor is needed for the calculate with bigger numbers, the Color struct save the r,g,b values with a u8.
*/
#[cfg(not(feature = "std"))]
use alloc::vec::Vec;
use core::ops::{Add, AddAssign, Sub};
use crate::color::Color;
#[derive(Copy, Clone)]
pub struct MathColor {
pub r: isize,
pub g: isize,
pub b: isize,
}
impl MathColor {
pub fn new(color: Color) -> Self {
MathColor {
r: color.r() as isize,
g: color.g() as isize,
b: color.b() as isize,
}
}
pub fn get_multiplied_color(&mut self, iarr: f32) -> Color {
Color::rgb(
(self.r as f32 * iarr).round() as u8,
(self.g as f32 * iarr).round() as u8,
(self.b as f32 * iarr).round() as u8,
)
}
}
impl Add for MathColor {
type Output = MathColor;
#[inline(always)]
fn add(self, color: MathColor) -> MathColor {
MathColor {
r: self.r + color.r,
g: self.g + color.g,
b: self.b + color.b,
}
}
}
impl AddAssign for MathColor {
#[inline(always)]
fn add_assign(&mut self, color: MathColor) {
*self = MathColor {
r: self.r + color.r,
g: self.g + color.g,
b: self.b + color.b,
};
}
}
impl Sub for MathColor {
type Output = MathColor;
#[inline(always)]
fn sub(self, color: MathColor) -> MathColor {
MathColor {
r: self.r - color.r,
g: self.g - color.g,
b: self.b - color.b,
}
}
}
pub fn gauss_blur(data: &mut [Color], w: u32, h: u32, r: f32) {
let bxs = boxes_for_gauss(r, 3);
let mut tcl = data.to_owned();
box_blur(
&mut tcl,
data,
w as usize,
h as usize,
((bxs[0] - 1) / 2) as usize,
);
box_blur(
&mut tcl,
data,
w as usize,
h as usize,
((bxs[1] - 1) / 2) as usize,
);
box_blur(
&mut tcl,
data,
w as usize,
h as usize,
((bxs[2] - 1) / 2) as usize,
);
}
fn boxes_for_gauss(sigma: f32, n: usize) -> Vec<i32> {
let w_ideal: f32 = ((12.0 * sigma * sigma / n as f32) + 1.0).sqrt();
let mut wl: i32 = w_ideal.floor() as i32;
if wl % 2 == 0 {
wl -= 1;
};
let wu: i32 = wl + 2;
let m_ideal: f32 = (12.0 * sigma * sigma
- n as f32 * wl as f32 * wl as f32
- 4.0 * n as f32 * wl as f32
- 3.0 * n as f32)
/ (-4.0 * wl as f32 - 4.0);
let m: usize = m_ideal.round() as usize;
let mut sizes = Vec::<i32>::new();
for i in 0..n {
sizes.push(if i < m { wl } else { wu });
}
sizes
}
fn box_blur(tcl: &mut [Color], scl: &mut [Color], w: usize, h: usize, r: usize) {
box_blur_t(scl, tcl, w, h, r);
box_blur_h(tcl, scl, w, h, r);
}
#[inline(always)]
fn box_blur_h(tcl: &mut [Color], scl: &mut [Color], w: usize, h: usize, r: usize) {
let iarr: f32 = 1.0 / (r + r + 1) as f32;
for i in 0..h {
let mut ti: usize = i * w;
let mut li: usize = ti;
let mut ri: usize = ti + r;
let fv = MathColor::new(tcl[ti]);
let lv = MathColor::new(tcl[ti + w - 1]);
let mut val: MathColor = MathColor {
r: (r + 1) as isize * fv.r,
g: (r + 1) as isize * fv.g,
b: (r + 1) as isize * fv.b,
};
for j in 0..r {
val += MathColor::new(tcl[ti + j]);
}
for _ in 0..(r + 1) {
val += MathColor::new(tcl[ri]) - fv;
scl[ti] = val.get_multiplied_color(iarr);
ti += 1;
ri += 1;
}
for _ in (r + 1)..(w - r) {
val += MathColor::new(tcl[ri]) - MathColor::new(tcl[li]);
scl[ti] = val.get_multiplied_color(iarr);
ti += 1;
ri += 1;
li += 1;
}
for _ in (w - r)..w {
val += lv - MathColor::new(tcl[li]);
scl[ti] = val.get_multiplied_color(iarr);
ti += 1;
li += 1;
}
}
}
#[inline(always)]
fn box_blur_t(tcl: &mut [Color], scl: &mut [Color], w: usize, h: usize, r: usize) {
let iarr: f32 = 1.0 / (r + r + 1) as f32;
for i in 0..w {
let mut ti: usize = i;
let mut li: usize = ti;
let mut ri: usize = ti + r * w;
let fv = MathColor::new(tcl[ti]);
let lv = MathColor::new(tcl[ti + w * (h - 1)]);
let mut val: MathColor = MathColor {
r: (r + 1) as isize * fv.r,
g: (r + 1) as isize * fv.g,
b: (r + 1) as isize * fv.b,
};
for j in 0..r {
val += MathColor::new(tcl[ti + j * w]);
}
for _ in 0..(r + 1) {
val += MathColor::new(tcl[ri]) - fv;
scl[ti] = val.get_multiplied_color(iarr);
ti += w;
ri += w;
}
for _ in (r + 1)..(h - r) {
val += MathColor::new(tcl[ri]) - MathColor::new(tcl[li]);
scl[ti] = val.get_multiplied_color(iarr);
ti += w;
ri += w;
li += w;
}
for _ in (h - r)..h {
val += lv - MathColor::new(tcl[li]);
scl[ti] = val.get_multiplied_color(iarr);
ti += w;
li += w;
}
}
}

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// SPDX-License-Identifier: MIT
use core::fmt;
#[cfg(feature = "serde")]
use serde::de::{self, Deserializer};
#[cfg(feature = "serde")]
use serde::Deserialize;
/// A color
#[derive(Copy, Clone)]
#[repr(transparent)]
pub struct Color {
pub data: u32,
}
impl Color {
/// Create a new color from RGB
pub const fn rgb(r: u8, g: u8, b: u8) -> Self {
Color {
data: 0xFF000000 | ((r as u32) << 16) | ((g as u32) << 8) | (b as u32),
}
}
/// Set the alpha
pub const fn rgba(r: u8, g: u8, b: u8, a: u8) -> Self {
Color {
data: ((a as u32) << 24) | ((r as u32) << 16) | ((g as u32) << 8) | (b as u32),
}
}
/// Get the r value
pub fn r(&self) -> u8 {
((self.data & 0x00FF0000) >> 16) as u8
}
/// Get the g value
pub fn g(&self) -> u8 {
((self.data & 0x0000FF00) >> 8) as u8
}
/// Get the b value
pub fn b(&self) -> u8 {
(self.data & 0x000000FF) as u8
}
/// Get the alpha value
pub fn a(&self) -> u8 {
((self.data & 0xFF000000) >> 24) as u8
}
/// Interpolate between two colors
pub fn interpolate(start_color: Color, end_color: Color, scale: f64) -> Color {
let r = Color::interp(start_color.r(), end_color.r(), scale);
let g = Color::interp(start_color.g(), end_color.g(), scale);
let b = Color::interp(start_color.b(), end_color.b(), scale);
let a = Color::interp(start_color.a(), end_color.a(), scale);
Color::rgba(r, g, b, a)
}
fn interp(start_color: u8, end_color: u8, scale: f64) -> u8 {
((end_color as f64 - start_color as f64) * scale + start_color as f64) as u8
}
}
/// Compare two colors (Do not take care of alpha)
impl PartialEq for Color {
fn eq(&self, other: &Color) -> bool {
self.r() == other.r() && self.g() == other.g() && self.b() == other.b()
}
}
impl fmt::Debug for Color {
fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
write!(f, "{:#010X}", { self.data })
}
}
#[cfg(feature = "serde")]
impl<'de> Deserialize<'de> for Color {
fn deserialize<D>(deserializer: D) -> Result<Color, D::Error>
where
D: Deserializer<'de>,
{
deserializer.deserialize_i32(ColorVisitor)
}
}
#[cfg(feature = "serde")]
struct ColorVisitor;
#[cfg(feature = "serde")]
impl<'de> de::Visitor<'de> for ColorVisitor {
type Value = Color;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("Color specification in HEX format '#ARGB'")
}
fn visit_str<E>(self, color_spec: &str) -> Result<Self::Value, E>
where
E: de::Error,
{
if color_spec.len() != 9 {
return Err(E::custom(format!("Color spec must be of format '#AARRGGBB' ('{}')", color_spec)))
}
if &color_spec[0..1] != "#" {
return Err(E::custom(format!("Color spec must begin with '#' ('{}')", color_spec)));
}
let a = u8::from_str_radix(&color_spec[1..3], 16)
.map_err(|e| E::custom(e))?;
let r = u8::from_str_radix(&color_spec[3..5], 16)
.map_err(|e| E::custom(e.to_string()))?;
let g = u8::from_str_radix(&color_spec[5..7], 16)
.map_err(|e| E::custom(e.to_string()))?;
let b = u8::from_str_radix(&color_spec[7..9], 16)
.map_err(|e| E::custom(e.to_string()))?;
Ok(Color::rgba(r, g, b, a))
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn partial_eq() {
assert_eq!(Color::rgb(1, 2, 3), Color::rgba(1, 2, 3, 200));
assert_ne!(Color::rgb(1, 2, 3), Color::rgba(11, 2, 3, 200));
assert_eq!(Color::rgba(1, 2, 3, 200), Color::rgba(1, 2, 3, 200));
}
#[test]
fn alignment() {
assert_eq!(4, core::mem::size_of::<Color>());
assert_eq!(8, core::mem::size_of::<[Color; 2]>());
assert_eq!(12, core::mem::size_of::<[Color; 3]>());
assert_eq!(16, core::mem::size_of::<[Color; 4]>());
assert_eq!(20, core::mem::size_of::<[Color; 5]>());
}
#[cfg(features = "serde")]
mod serde {
use serde_derive::Deserialize;
use toml;
use crate::Color;
#[derive(Deserialize)]
struct TestColor {
color: Color,
}
#[test]
fn deserialize_ok() {
let color_spec = r##"color = "#00010203""##;
let test_color: TestColor = toml::from_str(color_spec).expect("Color spec did not parse correctly");
assert_eq!(test_color.color.a(), 0, "Alpha channel incorrect");
assert_eq!(test_color.color.r(), 1, "Red channel incorrect");
assert_eq!(test_color.color.g(), 2, "Green channel incorrect");
assert_eq!(test_color.color.b(), 3, "Blue channel incorrect");
}
#[test]
fn deserialize_hex() {
let color_spec = r##"color = "#AABBCCDD""##;
let _: TestColor = toml::from_str(color_spec).expect("Color spec did not parse HEX correctly");
}
#[test]
fn deserialize_no_hash() {
let color_spec = r##"color = "$00010203""##;
let test_color: Result<TestColor, _> = toml::from_str(color_spec);
assert!(test_color.is_err(), "Color spec should not parse correctly without leading '#'");
assert!(test_color.err().unwrap().to_string().contains("must begin with '#'"));
}
#[test]
fn deserialize_not_hex() {
let color_spec = r##"color = "#GG010203""##;
let test_color: Result<TestColor, _> = toml::from_str(color_spec);
assert!(test_color.is_err(), "Color spec should not parse invalid HEX correctly");
assert!(test_color.err().unwrap().to_string().contains("invalid digit"));
}
#[test]
fn deserialize_str_too_long() {
let color_spec = r##"color = "#0001020304""##;
let test_color: Result<TestColor, _> = toml::from_str(color_spec);
assert!(test_color.is_err(), "Color spec should not parse invalid spec correctly");
assert!(test_color.err().unwrap().to_string().contains("must be of format '#AARRGGBB'"));
}
#[test]
fn deserialize_str_too_short() {
let color_spec = r##"color = "#000102""##;
let test_color: Result<TestColor, _> = toml::from_str(color_spec);
assert!(test_color.is_err(), "Color spec should not parse invalid spec correctly");
assert!(test_color.err().unwrap().to_string().contains("must be of format '#AARRGGBB'"));
}
}
}

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// SPDX-License-Identifier: MIT
use core::ops::{Deref, DerefMut};
use core::{char, mem, slice};
pub const EVENT_NONE: i64 = 0;
pub const EVENT_KEY: i64 = 1;
pub const EVENT_MOUSE: i64 = 2;
pub const EVENT_BUTTON: i64 = 3;
pub const EVENT_SCROLL: i64 = 4;
pub const EVENT_QUIT: i64 = 5;
pub const EVENT_FOCUS: i64 = 6;
pub const EVENT_MOVE: i64 = 7;
pub const EVENT_RESIZE: i64 = 8;
pub const EVENT_SCREEN: i64 = 9;
pub const EVENT_CLIPBOARD: i64 = 10;
pub const EVENT_MOUSE_RELATIVE: i64 = 11;
pub const EVENT_DROP: i64 = 12;
pub const EVENT_TEXT_INPUT: i64 = 13;
pub const EVENT_CLIPBOARD_UPDATE: i64 = 14;
pub const EVENT_HOVER: i64 = 15;
/// An optional event
#[derive(Copy, Clone, Debug)]
pub enum EventOption {
/// A key event
Key(KeyEvent),
/// A text input event
TextInput(TextInputEvent),
/// A mouse event (absolute)
Mouse(MouseEvent),
/// A mouse event (relative)
MouseRelative(MouseRelativeEvent),
/// A mouse button event
Button(ButtonEvent),
/// A mouse scroll event
Scroll(ScrollEvent),
/// A quit request event
Quit(QuitEvent),
/// A focus event
Focus(FocusEvent),
/// A move event
Move(MoveEvent),
/// A resize event
Resize(ResizeEvent),
/// A screen report event
Screen(ScreenEvent),
/// A clipboard event
Clipboard(ClipboardEvent),
/// A clipboard update event
ClipboardUpdate(ClipboardUpdateEvent),
/// A drop file / text event (available on linux, windows and macOS)
Drop(DropEvent),
/// A hover event
Hover(HoverEvent),
/// An unknown event
Unknown(Event),
/// No event
None,
}
/// An event
#[derive(Copy, Clone, Debug)]
#[repr(packed)]
pub struct Event {
pub code: i64,
pub a: i64,
pub b: i64,
}
#[allow(clippy::new_without_default)]
impl Event {
/// Create a null event
pub fn new() -> Event {
Event {
code: 0,
a: 0,
b: 0,
}
}
/// Convert the event ot an optional event
// TODO: Consider doing this via a From trait.
pub fn to_option(self) -> EventOption {
match self.code {
EVENT_NONE => EventOption::None,
EVENT_KEY => EventOption::Key(KeyEvent::from_event(self)),
EVENT_TEXT_INPUT => EventOption::TextInput(TextInputEvent::from_event(self)),
EVENT_MOUSE => EventOption::Mouse(MouseEvent::from_event(self)),
EVENT_MOUSE_RELATIVE => {
EventOption::MouseRelative(MouseRelativeEvent::from_event(self))
}
EVENT_BUTTON => EventOption::Button(ButtonEvent::from_event(self)),
EVENT_SCROLL => EventOption::Scroll(ScrollEvent::from_event(self)),
EVENT_QUIT => EventOption::Quit(QuitEvent::from_event(self)),
EVENT_FOCUS => EventOption::Focus(FocusEvent::from_event(self)),
EVENT_MOVE => EventOption::Move(MoveEvent::from_event(self)),
EVENT_RESIZE => EventOption::Resize(ResizeEvent::from_event(self)),
EVENT_SCREEN => EventOption::Screen(ScreenEvent::from_event(self)),
EVENT_CLIPBOARD => EventOption::Clipboard(ClipboardEvent::from_event(self)),
EVENT_CLIPBOARD_UPDATE => {
EventOption::ClipboardUpdate(ClipboardUpdateEvent::from_event(self))
}
EVENT_DROP => EventOption::Drop(DropEvent::from_event(self)),
EVENT_HOVER => EventOption::Hover(HoverEvent::from_event(self)),
_ => EventOption::Unknown(self),
}
}
}
impl Deref for Event {
type Target = [u8];
fn deref(&self) -> &[u8] {
unsafe {
slice::from_raw_parts(self as *const Event as *const u8, mem::size_of::<Event>())
as &[u8]
}
}
}
impl DerefMut for Event {
fn deref_mut(&mut self) -> &mut [u8] {
unsafe {
slice::from_raw_parts_mut(self as *mut Event as *mut u8, mem::size_of::<Event>())
as &mut [u8]
}
}
}
pub const K_A: u8 = 0x1E;
pub const K_B: u8 = 0x30;
pub const K_C: u8 = 0x2E;
pub const K_D: u8 = 0x20;
pub const K_E: u8 = 0x12;
pub const K_F: u8 = 0x21;
pub const K_G: u8 = 0x22;
pub const K_H: u8 = 0x23;
pub const K_I: u8 = 0x17;
pub const K_J: u8 = 0x24;
pub const K_K: u8 = 0x25;
pub const K_L: u8 = 0x26;
pub const K_M: u8 = 0x32;
pub const K_N: u8 = 0x31;
pub const K_O: u8 = 0x18;
pub const K_P: u8 = 0x19;
pub const K_Q: u8 = 0x10;
pub const K_R: u8 = 0x13;
pub const K_S: u8 = 0x1F;
pub const K_T: u8 = 0x14;
pub const K_U: u8 = 0x16;
pub const K_V: u8 = 0x2F;
pub const K_W: u8 = 0x11;
pub const K_X: u8 = 0x2D;
pub const K_Y: u8 = 0x15;
pub const K_Z: u8 = 0x2C;
pub const K_0: u8 = 0x0B;
pub const K_1: u8 = 0x02;
pub const K_2: u8 = 0x03;
pub const K_3: u8 = 0x04;
pub const K_4: u8 = 0x05;
pub const K_5: u8 = 0x06;
pub const K_6: u8 = 0x07;
pub const K_7: u8 = 0x08;
pub const K_8: u8 = 0x09;
pub const K_9: u8 = 0x0A;
// Numpad keys (codes 0x70-0x79)
pub const K_NUM_0: u8 = 0x70;
pub const K_NUM_1: u8 = 0x71;
pub const K_NUM_2: u8 = 0x72;
pub const K_NUM_3: u8 = 0x73;
pub const K_NUM_4: u8 = 0x74;
pub const K_NUM_5: u8 = 0x75;
pub const K_NUM_6: u8 = 0x76;
pub const K_NUM_7: u8 = 0x77;
pub const K_NUM_8: u8 = 0x78;
pub const K_NUM_9: u8 = 0x79;
/// Tick/tilde key
pub const K_TICK: u8 = 0x29;
/// Minus/underline key
pub const K_MINUS: u8 = 0x0C;
/// Equals/plus key
pub const K_EQUALS: u8 = 0x0D;
/// Backslash/pipe key
pub const K_BACKSLASH: u8 = 0x2B;
/// Bracket open key
pub const K_BRACE_OPEN: u8 = 0x1A;
/// Bracket close key
pub const K_BRACE_CLOSE: u8 = 0x1B;
/// Semicolon key
pub const K_SEMICOLON: u8 = 0x27;
/// Quote key
pub const K_QUOTE: u8 = 0x28;
/// Comma key
pub const K_COMMA: u8 = 0x33;
/// Period key
pub const K_PERIOD: u8 = 0x34;
/// Slash key
pub const K_SLASH: u8 = 0x35;
/// Backspace key
pub const K_BKSP: u8 = 0x0E;
/// Space key
pub const K_SPACE: u8 = 0x39;
/// Tab key
pub const K_TAB: u8 = 0x0F;
/// Capslock
pub const K_CAPS: u8 = 0x3A;
/// Left shift
pub const K_LEFT_SHIFT: u8 = 0x2A;
/// Right shift
pub const K_RIGHT_SHIFT: u8 = 0x36;
/// Control key
pub const K_CTRL: u8 = 0x1D;
/// Alt key
pub const K_ALT: u8 = 0x38;
/// AltGr key
pub const K_ALT_GR: u8 = 0x64;
/// Enter key
pub const K_ENTER: u8 = 0x1C;
/// Escape key
pub const K_ESC: u8 = 0x01;
/// F1 key
pub const K_F1: u8 = 0x3B;
/// F2 key
pub const K_F2: u8 = 0x3C;
/// F3 key
pub const K_F3: u8 = 0x3D;
/// F4 key
pub const K_F4: u8 = 0x3E;
/// F5 key
pub const K_F5: u8 = 0x3F;
/// F6 key
pub const K_F6: u8 = 0x40;
/// F7 key
pub const K_F7: u8 = 0x41;
/// F8 key
pub const K_F8: u8 = 0x42;
/// F9 key
pub const K_F9: u8 = 0x43;
/// F10 key
pub const K_F10: u8 = 0x44;
/// Home key
pub const K_HOME: u8 = 0x47;
/// Up key
pub const K_UP: u8 = 0x48;
/// Page up key
pub const K_PGUP: u8 = 0x49;
/// Left key
pub const K_LEFT: u8 = 0x4B;
/// Right key
pub const K_RIGHT: u8 = 0x4D;
/// End key
pub const K_END: u8 = 0x4F;
/// Down key
pub const K_DOWN: u8 = 0x50;
/// Page down key
pub const K_PGDN: u8 = 0x51;
/// Delete key
pub const K_DEL: u8 = 0x53;
/// F11 key
pub const K_F11: u8 = 0x57;
/// F12 key
pub const K_F12: u8 = 0x58;
/// SUPER/META/WIN Key
pub const K_SUPER : u8 = 0x5B;
/// Media Key for Volume toggle (mute/unmute)
pub const K_VOLUME_TOGGLE : u8 = 0x80 + 0x20;
/// Media Key for Volume Down
pub const K_VOLUME_DOWN : u8 = 0x80 + 0x2E;
/// Media Key for Volume Up
pub const K_VOLUME_UP : u8 = 0x80 + 0x30;
/// A key event (such as a pressed key)
#[derive(Copy, Clone, Debug)]
pub struct KeyEvent {
/// The character of the key
pub character: char,
/// The scancode of the key
pub scancode: u8,
/// Was it pressed?
pub pressed: bool,
}
impl KeyEvent {
/// Convert to an `Event`
pub fn to_event(&self) -> Event {
Event {
code: EVENT_KEY,
a: self.character as i64,
b: self.scancode as i64 | (self.pressed as i64) << 8,
}
}
/// Convert from an `Event`
pub fn from_event(event: Event) -> KeyEvent {
KeyEvent {
character: char::from_u32(event.a as u32).unwrap_or('\0'),
scancode: event.b as u8,
pressed: event.b & 1 << 8 == 1 << 8,
}
}
}
#[derive(Copy, Clone, Debug)]
pub struct TextInputEvent {
pub character: char,
}
impl TextInputEvent {
/// Convert to an `Event`
pub fn to_event(&self) -> Event {
Event {
code: EVENT_TEXT_INPUT,
a: self.character as i64,
b: 0,
}
}
/// Convert from an `Event`
pub fn from_event(event: Event) -> TextInputEvent {
TextInputEvent {
character: char::from_u32(event.a as u32).unwrap_or('\0'),
}
}
}
/// A event related to the mouse (absolute position)
#[derive(Copy, Clone, Debug)]
pub struct MouseEvent {
/// The x coordinate of the mouse
pub x: i32,
/// The y coordinate of the mouse
pub y: i32,
}
impl MouseEvent {
/// Convert to an `Event`
pub fn to_event(&self) -> Event {
Event {
code: EVENT_MOUSE,
a: self.x as i64,
b: self.y as i64,
}
}
/// Convert an `Event` to a `MouseEvent`
pub fn from_event(event: Event) -> MouseEvent {
MouseEvent {
x: event.a as i32,
y: event.b as i32,
}
}
}
/// A event related to the mouse (relative position)
#[derive(Copy, Clone, Debug)]
pub struct MouseRelativeEvent {
/// The x coordinate of the mouse
pub dx: i32,
/// The y coordinate of the mouse
pub dy: i32,
}
impl MouseRelativeEvent {
/// Convert to an `Event`
pub fn to_event(&self) -> Event {
Event {
code: EVENT_MOUSE_RELATIVE,
a: self.dx as i64,
b: self.dy as i64,
}
}
/// Convert an `Event` to a `MouseRelativeEvent`
pub fn from_event(event: Event) -> MouseRelativeEvent {
MouseRelativeEvent {
dx: event.a as i32,
dy: event.b as i32,
}
}
}
/// A event for clicking the mouse
#[derive(Copy, Clone, Debug)]
pub struct ButtonEvent {
/// Was the left button pressed?
pub left: bool,
/// Was the middle button pressed?
pub middle: bool,
/// Was the right button pressed?
pub right: bool,
}
impl ButtonEvent {
/// Convert to an `Event`
pub fn to_event(&self) -> Event {
Event {
code: EVENT_BUTTON,
a: self.left as i64 | (self.middle as i64) << 1 | (self.right as i64) << 2,
b: 0,
}
}
/// Convert an `Event` to a `ButtonEvent`
pub fn from_event(event: Event) -> ButtonEvent {
ButtonEvent {
left: event.a & 1 == 1,
middle: event.a & 2 == 2,
right: event.a & 4 == 4,
}
}
}
/// A event for scrolling the mouse
#[derive(Copy, Clone, Debug)]
pub struct ScrollEvent {
/// The x distance of the scroll
pub x: i32,
/// The y distance of the scroll
pub y: i32,
}
impl ScrollEvent {
/// Convert to an `Event`
pub fn to_event(&self) -> Event {
Event {
code: EVENT_SCROLL,
a: self.x as i64,
b: self.y as i64,
}
}
/// Convert an `Event` to a `ScrollEvent`
pub fn from_event(event: Event) -> ScrollEvent {
ScrollEvent {
x: event.a as i32,
y: event.b as i32,
}
}
}
#[derive(Copy, Clone, Debug)]
pub struct QuitEvent;
impl QuitEvent {
pub fn to_event(&self) -> Event {
Event {
code: EVENT_QUIT,
a: 0,
b: 0,
}
}
pub fn from_event(_: Event) -> QuitEvent {
QuitEvent
}
}
/// A focus event
#[derive(Copy, Clone, Debug)]
pub struct FocusEvent {
/// True if window has been focused, false if not
pub focused: bool,
}
impl FocusEvent {
pub fn to_event(&self) -> Event {
Event {
code: EVENT_FOCUS,
a: self.focused as i64,
b: 0,
}
}
pub fn from_event(event: Event) -> FocusEvent {
FocusEvent {
focused: event.a > 0,
}
}
}
/// A move event
#[derive(Copy, Clone, Debug)]
pub struct MoveEvent {
pub x: i32,
pub y: i32,
}
impl MoveEvent {
pub fn to_event(&self) -> Event {
Event {
code: EVENT_MOVE,
a: self.x as i64,
b: self.y as i64,
}
}
pub fn from_event(event: Event) -> MoveEvent {
MoveEvent {
x: event.a as i32,
y: event.b as i32,
}
}
}
/// A resize event
#[derive(Copy, Clone, Debug)]
pub struct ResizeEvent {
pub width: u32,
pub height: u32,
}
impl ResizeEvent {
pub fn to_event(&self) -> Event {
Event {
code: EVENT_RESIZE,
a: self.width as i64,
b: self.height as i64,
}
}
pub fn from_event(event: Event) -> ResizeEvent {
ResizeEvent {
width: event.a as u32,
height: event.b as u32,
}
}
}
/// A screen report event
#[derive(Copy, Clone, Debug)]
pub struct ScreenEvent {
pub width: u32,
pub height: u32,
}
impl ScreenEvent {
pub fn to_event(&self) -> Event {
Event {
code: EVENT_SCREEN,
a: self.width as i64,
b: self.height as i64,
}
}
pub fn from_event(event: Event) -> ScreenEvent {
ScreenEvent {
width: event.a as u32,
height: event.b as u32,
}
}
}
pub const CLIPBOARD_COPY: u8 = 0;
pub const CLIPBOARD_CUT: u8 = 1;
pub const CLIPBOARD_PASTE: u8 = 2;
/// A clipboard event
#[derive(Copy, Clone, Debug)]
pub struct ClipboardUpdateEvent;
impl ClipboardUpdateEvent {
pub fn to_event(&self) -> Event {
Event {
code: EVENT_CLIPBOARD_UPDATE,
a: 0,
b: 0,
}
}
pub fn from_event(_: Event) -> ClipboardUpdateEvent {
ClipboardUpdateEvent
}
}
/// A clipboard event
#[derive(Copy, Clone, Debug)]
pub struct ClipboardEvent {
pub kind: u8,
pub size: usize,
}
impl ClipboardEvent {
pub fn to_event(&self) -> Event {
Event {
code: EVENT_CLIPBOARD,
a: self.kind as i64,
b: self.size as i64,
}
}
pub fn from_event(event: Event) -> ClipboardEvent {
ClipboardEvent {
kind: event.a as u8,
size: event.b as usize,
}
}
}
pub const DROP_FILE: u8 = 0;
pub const DROP_TEXT: u8 = 1;
/// A drop file event.
#[derive(Copy, Clone, Debug)]
pub struct DropEvent {
pub kind: u8,
}
impl DropEvent {
pub fn to_event(&self) -> Event {
Event {
code: EVENT_DROP,
a: self.kind as i64,
b: 0,
}
}
pub fn from_event(event: Event) -> DropEvent {
DropEvent {
kind: event.a as u8,
}
}
}
/// A hover event
#[derive(Copy, Clone, Debug)]
pub struct HoverEvent {
/// True if window has been entered, false if exited
pub entered: bool,
}
impl HoverEvent {
pub fn to_event(&self) -> Event {
Event {
code: EVENT_HOVER,
a: self.entered as i64,
b: 0,
}
}
pub fn from_event(event: Event) -> HoverEvent {
HoverEvent {
entered: event.a > 0,
}
}
}

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// SPDX-License-Identifier: MIT
#[cfg(not(feature = "std"))]
use alloc::vec::Vec;
/// point type (is the point a new position or a connection point)
pub enum PointType {
Move,
Connect,
None,
}
/// graphic path with similar functions like html canvas
pub struct GraphicsPath {
x: i32,
y: i32,
pub points: Vec<(i32, i32, PointType)>,
}
#[allow(clippy::new_without_default)]
impl GraphicsPath {
pub fn new() -> GraphicsPath {
GraphicsPath {
x: 0,
y: 0,
points: Vec::new(),
}
}
/// move to position
pub fn move_to(&mut self, x: i32, y: i32) {
self.points.push((x, y, PointType::Move));
self.x = x;
self.y = y;
}
/// create a line between the last and new point
pub fn line_to(&mut self, x: i32, y: i32) {
self.points.push((x, y, PointType::Connect));
self.x = x;
self.y = y;
}
/// quadratic bezier curve
pub fn quadratic_curve_to(&mut self, argx1: i32, argy1: i32, argx2: i32, argy2: i32) {
let mut t: f32 = 0.0;
let mut u: f32;
let mut tt: f32;
let mut uu: f32;
let mut x: f32;
let mut y: f32;
while t < 1.0 {
u = 1.0 - t;
uu = u * u;
tt = t * t;
x = (self.x as f32) * uu;
y = (self.y as f32) * uu;
x += 2.0 * u * t * (argx1 as f32);
y += 2.0 * u * t * (argy1 as f32);
x += tt * (argx2 as f32);
y += tt * (argy2 as f32);
t += 0.01;
self.points.push((x as i32, y as i32, PointType::Connect));
}
self.x = argx2;
self.y = argy2;
}
/// cubic bezier curve
pub fn bezier_curve_to(
&mut self,
argx1: i32,
argy1: i32,
argx2: i32,
argy2: i32,
argx3: i32,
argy3: i32,
) {
let mut t: f32 = 0.0;
let mut u: f32;
let mut tt: f32;
let mut uu: f32;
let mut uuu: f32;
let mut ttt: f32;
let mut x: f32;
let mut y: f32;
while t < 1.0 {
u = 1.0 - t;
tt = t * t;
uu = u * u;
uuu = uu * u;
ttt = tt * t;
x = (self.x as f32) * uuu;
y = (self.y as f32) * uuu;
x += 3.0 * uu * t * (argx1 as f32);
y += 3.0 * uu * t * (argy1 as f32);
x += 3.0 * u * tt * (argx2 as f32);
y += 3.0 * u * tt * (argy2 as f32);
x += ttt * (argx3 as f32);
y += ttt * (argy3 as f32);
t += 0.01;
self.points.push((x as i32, y as i32, PointType::Connect));
}
self.x = argx3;
self.y = argy3;
}
}

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// SPDX-License-Identifier: MIT
#![cfg_attr(not(feature = "std"), no_std)]
#[cfg(not(feature = "std"))]
extern crate alloc;
#[cfg(all(feature = "std", not(target_os = "redox")))]
#[path = "sys/sdl2.rs"]
mod sys;
#[cfg(all(feature = "std", target_os = "redox"))]
#[path = "sys/orbital.rs"]
mod sys;
#[cfg(feature = "std")]
pub use sys::{get_display_size, EventIter, Window};
#[cfg(feature = "unifont")]
pub static FONT: &[u8] = include_bytes!("../res/unifont.font");
pub use color::Color;
pub use event::*;
pub use graphicspath::GraphicsPath;
pub use renderer::Renderer;
#[cfg(feature = "std")]
mod blur;
pub mod color;
pub mod event;
pub mod graphicspath;
pub mod renderer;
#[derive(Clone, Copy, Debug)]
pub enum WindowFlag {
Async,
Back,
Front,
Borderless,
Resizable,
Transparent,
Unclosable,
}
#[derive(Clone, Copy, Debug)]
pub enum Mode {
Blend, //Composite
Overwrite, //Replace
}

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// SPDX-License-Identifier: MIT
use core::cell::Cell;
use core::cmp;
#[cfg(feature = "std")]
use crate::blur;
use crate::color::Color;
use crate::graphicspath::GraphicsPath;
use crate::graphicspath::PointType;
use crate::Mode;
pub trait Renderer {
/// Get width
fn width(&self) -> u32;
/// Get height
fn height(&self) -> u32;
/// Access the pixel buffer
fn data(&self) -> &[Color];
/// Access the pixel buffer mutably
fn data_mut(&mut self) -> &mut [Color];
/// Flip the buffer
fn sync(&mut self) -> bool;
/// Set/get drawing mode
fn mode(&self) -> &Cell<Mode>;
///Draw a pixel
//faster pixel implementation (multiplexing)
fn pixel(&mut self, x: i32, y: i32, color: Color) {
let replace = match self.mode().get() {
Mode::Blend => false,
Mode::Overwrite => true,
};
let w = self.width();
let h = self.height();
let data = self.data_mut();
if x >= 0 && y >= 0 && x < w as i32 && y < h as i32 {
let new = color.data;
let alpha = (new >> 24) & 0xFF;
let old = &mut data[y as usize * w as usize + x as usize].data;
if alpha >= 255 || replace {
*old = new;
} else if alpha > 0 {
let n_alpha = 255 - alpha;
let rb = ((n_alpha * (*old & 0x00FF00FF)) + (alpha * (new & 0x00FF00FF))) >> 8;
let ag = (n_alpha * ((*old & 0xFF00FF00) >> 8))
+ (alpha * (0x01000000 | ((new & 0x0000FF00) >> 8)));
*old = (rb & 0x00FF00FF) | (ag & 0xFF00FF00);
}
}
}
/// Draw a piece of an arc. Negative radius will fill in the inside
fn arc(&mut self, x0: i32, y0: i32, radius: i32, parts: u8, color: Color) {
let mut x = radius.abs();
let mut y = 0;
let mut err = 0;
// https://github.com/rust-lang/rust-clippy/issues/5354
#[allow(clippy::comparison_chain)]
while x >= y {
if radius < 0 {
if parts & 1 << 0 != 0 {
self.rect(x0 - x, y0 + y, x as u32, 1, color);
}
if parts & 1 << 1 != 0 {
self.rect(x0, y0 + y, x as u32 + 1, 1, color);
}
if parts & 1 << 2 != 0 {
self.rect(x0 - y, y0 + x, y as u32, 1, color);
}
if parts & 1 << 3 != 0 {
self.rect(x0, y0 + x, y as u32 + 1, 1, color);
}
if parts & 1 << 4 != 0 {
self.rect(x0 - x, y0 - y, x as u32, 1, color);
}
if parts & 1 << 5 != 0 {
self.rect(x0, y0 - y, x as u32 + 1, 1, color);
}
if parts & 1 << 6 != 0 {
self.rect(x0 - y, y0 - x, y as u32, 1, color);
}
if parts & 1 << 7 != 0 {
self.rect(x0, y0 - x, y as u32 + 1, 1, color);
}
} else if radius == 0 {
self.pixel(x0, y0, color);
} else {
if parts & 1 << 0 != 0 {
self.pixel(x0 - x, y0 + y, color);
}
if parts & 1 << 1 != 0 {
self.pixel(x0 + x, y0 + y, color);
}
if parts & 1 << 2 != 0 {
self.pixel(x0 - y, y0 + x, color);
}
if parts & 1 << 3 != 0 {
self.pixel(x0 + y, y0 + x, color);
}
if parts & 1 << 4 != 0 {
self.pixel(x0 - x, y0 - y, color);
}
if parts & 1 << 5 != 0 {
self.pixel(x0 + x, y0 - y, color);
}
if parts & 1 << 6 != 0 {
self.pixel(x0 - y, y0 - x, color);
}
if parts & 1 << 7 != 0 {
self.pixel(x0 + y, y0 - x, color);
}
}
y += 1;
err += 1 + 2 * y;
if 2 * (err - x) + 1 > 0 {
x -= 1;
err += 1 - 2 * x;
}
}
}
/// Draw a circle. Negative radius will fill in the inside
fn circle(&mut self, x0: i32, y0: i32, radius: i32, color: Color) {
let mut x = radius.abs();
let mut y = 0;
let mut err = -radius.abs();
match radius {
radius if radius > 0 => {
err = 0;
while x >= y {
self.pixel(x0 - x, y0 + y, color);
self.pixel(x0 + x, y0 + y, color);
self.pixel(x0 - y, y0 + x, color);
self.pixel(x0 + y, y0 + x, color);
self.pixel(x0 - x, y0 - y, color);
self.pixel(x0 + x, y0 - y, color);
self.pixel(x0 - y, y0 - x, color);
self.pixel(x0 + y, y0 - x, color);
y += 1;
err += 1 + 2 * y;
if 2 * (err - x) + 1 > 0 {
x -= 1;
err += 1 - 2 * x;
}
}
}
radius if radius < 0 => {
while x >= y {
let lasty = y;
err += y;
y += 1;
err += y;
self.line4points(x0, y0, x, lasty, color);
if err >= 0 {
if x != lasty {
self.line4points(x0, y0, lasty, x, color);
}
err -= x;
x -= 1;
err -= x;
}
}
}
_ => {
self.pixel(x0, y0, color);
}
}
}
fn line4points(&mut self, x0: i32, y0: i32, x: i32, y: i32, color: Color) {
//self.line(x0 - x, y0 + y, (x+x0), y0 + y, color);
self.rect(x0 - x, y0 + y, x as u32 * 2 + 1, 1, color);
if y != 0 {
//self.line(x0 - x, y0 - y, (x+x0), y0-y , color);
self.rect(x0 - x, y0 - y, x as u32 * 2 + 1, 1, color);
}
}
/// Draw a line
fn line(&mut self, argx1: i32, argy1: i32, argx2: i32, argy2: i32, color: Color) {
let mut x = argx1;
let mut y = argy1;
let dx = if argx1 > argx2 {
argx1 - argx2
} else {
argx2 - argx1
};
let dy = if argy1 > argy2 {
argy1 - argy2
} else {
argy2 - argy1
};
let sx = if argx1 < argx2 { 1 } else { -1 };
let sy = if argy1 < argy2 { 1 } else { -1 };
let mut err = if dx > dy { dx } else { -dy } / 2;
let mut err_tolerance;
loop {
self.pixel(x, y, color);
if x == argx2 && y == argy2 {
break;
};
err_tolerance = 2 * err;
if err_tolerance > -dx {
err -= dy;
x += sx;
}
if err_tolerance < dy {
err += dx;
y += sy;
}
}
}
fn lines(&mut self, points: &[[i32; 2]], color: Color) {
if points.is_empty() {
// when no points given, do nothing
} else if points.len() == 1 {
self.pixel(points[0][0], points[0][1], color);
} else {
for i in 0..points.len() - 1 {
self.line(
points[i][0],
points[i][1],
points[i + 1][0],
points[i + 1][1],
color,
);
}
}
}
/// Draw a path (GraphicsPath)
fn draw_path_stroke(&mut self, graphicspath: GraphicsPath, color: Color) {
let mut x: i32 = 0;
let mut y: i32 = 0;
for point in graphicspath.points {
if let PointType::Connect = point.2 {
self.line(x, y, point.0, point.1, color)
}
x = point.0;
y = point.1;
}
}
/// Draw a character, using the loaded font
#[cfg(feature = "unifont")]
fn char(&mut self, x: i32, y: i32, c: char, color: Color) {
let mut offset = (c as usize) * 16;
for row in 0..16 {
let row_data = if offset < crate::FONT.len() {
crate::FONT[offset]
} else {
0
};
for col in 0..8 {
let pixel = (row_data >> (7 - col)) & 1;
if pixel > 0 {
self.pixel(x + col, y + row, color);
}
}
offset += 1;
}
}
/// Set entire window to a color
fn set(&mut self, color: Color) {
let data = self.data_mut();
let data_ptr = data.as_mut_ptr();
for i in 0..data.len() as isize {
unsafe { *data_ptr.offset(i) = color }
}
}
/// Sets the whole window to black
fn clear(&mut self) {
self.set(Color::rgb(0, 0, 0));
}
fn rect(&mut self, x: i32, y: i32, w: u32, h: u32, color: Color) {
let replace = match self.mode().get() {
Mode::Blend => false,
Mode::Overwrite => true,
};
let self_w = self.width();
let self_h = self.height();
let start_y = cmp::max(0, cmp::min(self_h as i32 - 1, y));
let end_y = cmp::max(start_y, cmp::min(self_h as i32, y + h as i32));
let start_x = cmp::max(0, cmp::min(self_w as i32 - 1, x));
let len = cmp::max(start_x, cmp::min(self_w as i32, x + w as i32)) - start_x;
let alpha = (color.data >> 24) & 0xFF;
//if alpha > 0 {
if alpha >= 255 || replace {
let data = self.data_mut();
let data_ptr = data.as_mut_ptr();
for y in start_y..end_y {
let start = (y * self_w as i32 + start_x) as isize;
let end = start + len as isize;
for i in start..end {
unsafe {
*data_ptr.offset(i) = color;
}
}
}
} else {
for y in start_y..end_y {
for x in start_x..start_x + len {
self.pixel(x, y, color);
}
}
}
//}
}
#[cfg(feature = "std")]
fn box_blur(&mut self, x: i32, y: i32, w: u32, h: u32, r: i32) {
let self_w = self.width();
let self_h = self.height();
let start_y = cmp::max(0, cmp::min(self_h as i32 - 1, y));
let end_y = cmp::max(start_y, cmp::min(self_h as i32, y + h as i32));
let start_x = cmp::max(0, cmp::min(self_w as i32 - 1, x));
let end_x = cmp::max(start_x, cmp::min(self_w as i32, x + w as i32));
let data = self.data_mut();
let mut blur_data: Vec<Color> = Vec::new();
for y in start_y..end_y {
for x in start_x..end_x {
let old = data[y as usize * self_w as usize + x as usize];
blur_data.push(old);
}
}
let real_w = end_x - start_x;
let real_h = end_y - start_y;
blur::gauss_blur(&mut blur_data, real_w as u32, real_h as u32, r as f32);
let mut counter: u32 = 0;
for y in start_y..end_y {
for x in start_x..end_x {
let a = blur_data[counter as usize];
let old = &mut data[y as usize * self_w as usize + x as usize].data;
*old = a.data;
counter += 1;
}
}
}
#[allow(clippy::too_many_arguments)]
#[cfg(feature = "std")]
fn box_shadow(
&mut self,
x: i32,
y: i32,
w: u32,
h: u32,
offset_x: i32,
offset_y: i32,
r: i32,
color: Color,
) {
let real_w = w + (2 * r as u32);
let real_h = h + (2 * r as u32);
let mut blur_data: Vec<Color> = Vec::new();
for new_x in x..x + real_w as i32 {
for new_y in y..y + real_h as i32 {
if new_x < x + r
|| new_y < y + r
|| new_y >= y + h as i32 + r
|| new_x >= x + w as i32 + r
{
blur_data.push(Color::rgb(255, 0, 255));
} else {
blur_data.push(Color::rgb(0, 0, 0));
}
}
}
blur::gauss_blur(&mut blur_data, real_w, real_h, r as f32 / 3.0);
let mut counter: u32 = 0;
for new_x in (x - r)..(x + real_w as i32 - r) {
for new_y in (y - r)..(y + real_h as i32 - r) {
let c = blur_data[counter as usize];
let alpha: u8 = if color.a() < 255 - c.r() {
color.a()
} else {
255 - c.r()
};
let col = Color::rgba(color.r(), color.g(), color.b(), alpha);
let new_x_b = new_x + offset_x;
let new_y_b = new_y + offset_y;
if new_x_b < x
|| new_x_b > x + w as i32 - 1
|| new_y_b < y
|| new_y_b > y + h as i32 - 1
{
self.pixel(new_x_b, new_y_b, col);
}
counter += 1;
}
}
}
/// Display an image
fn image(&mut self, start_x: i32, start_y: i32, w: u32, h: u32, data: &[Color]) {
match self.mode().get() {
Mode::Blend => self.image_fast(start_x, start_y, w, h, data),
Mode::Overwrite => self.image_opaque(start_x, start_y, w, h, data),
}
}
// TODO: Improve speed
#[inline(always)]
fn image_legacy(&mut self, start_x: i32, start_y: i32, w: u32, h: u32, data: &[Color]) {
let mut i = 0;
for y in start_y..start_y + h as i32 {
for x in start_x..start_x + w as i32 {
if i < data.len() {
self.pixel(x, y, data[i])
}
i += 1;
}
}
}
///Display an image overwriting a portion of window starting at given line : very quick!!
fn image_over(&mut self, start: i32, image_data: &[Color]) {
let start = start as usize * self.width() as usize;
let window_data = self.data_mut();
let stop = cmp::min(start + image_data.len(), window_data.len());
let end = cmp::min(image_data.len(), window_data.len() - start);
window_data[start..stop].copy_from_slice(&image_data[..end]);
}
///Display an image using non transparent method
#[inline(always)]
fn image_opaque(&mut self, start_x: i32, start_y: i32, w: u32, h: u32, image_data: &[Color]) {
let w = w as usize;
let mut h = h as usize;
let width = self.width() as usize;
let height = self.height() as usize;
let start_x = start_x as usize;
let start_y = start_y as usize;
//check boundaries
if start_x >= width || start_y >= height {
return;
}
if h + start_y > height {
h = height - start_y;
}
let window_data = self.data_mut();
let offset = start_y * width + start_x;
//copy image slices to window line by line
for l in 0..h {
let start = offset + l * width;
let mut stop = start + w;
let begin = l * w;
let mut end = begin + w;
//check boundaries
if start_x + w > width {
stop = (start_y + l + 1) * width - 1;
end = begin + stop - start;
}
window_data[start..stop].copy_from_slice(&image_data[begin..end]);
}
}
// Speed improved, image can be outside of window boundary
#[inline(always)]
fn image_fast(&mut self, start_x: i32, start_y: i32, w: u32, h: u32, image_data: &[Color]) {
let w = w as usize;
let h = h as usize;
let width = self.width() as usize;
let start_x = start_x as usize;
let start_y = start_y as usize;
//simply return if image is outside of window
if start_x >= width || start_y >= self.height() as usize {
return;
}
let window_data = self.data_mut();
let offset = start_y * width + start_x;
//copy image slices to window line by line
for l in 0..h {
let start = offset + l * width;
let mut stop = start + w;
let begin = l * w;
let end = begin + w;
//check boundaries
if start_x + w > width {
stop = (start_y + l + 1) * width;
}
let mut k = 0;
for i in begin..end {
if i < image_data.len() {
let new = image_data[i].data;
let alpha = (new >> 24) & 0xFF;
if alpha > 0 && (start + k) < window_data.len() && (start + k) < stop {
let old = &mut window_data[start + k].data;
if alpha >= 255 {
*old = new;
} else {
let n_alpha = 255 - alpha;
let rb = ((n_alpha * (*old & 0x00FF00FF))
+ (alpha * (new & 0x00FF00FF)))
>> 8;
let ag = (n_alpha * ((*old & 0xFF00FF00) >> 8))
+ (alpha * (0x01000000 | ((new & 0x0000FF00) >> 8)));
*old = (rb & 0x00FF00FF) | (ag & 0xFF00FF00);
}
}
k += 1;
}
}
}
}
/// Draw a linear gradient in a rectangular region
#[allow(clippy::too_many_arguments)]
#[cfg(feature = "std")]
fn linear_gradient(
&mut self,
rect_x: i32,
rect_y: i32,
rect_width: u32,
rect_height: u32,
start_x: i32,
start_y: i32,
end_x: i32,
end_y: i32,
start_color: Color,
end_color: Color,
) {
if (start_x == end_x) && (start_y == end_y) {
// Degenerate gradient
self.rect(rect_x, rect_y, rect_width, rect_height, start_color);
} else if start_x == end_x {
// Vertical gradient
for y in rect_y..(rect_y + rect_height as i32) {
let proj = (y as f64 - start_y as f64) / (end_y as f64 - start_y as f64);
let scale = if proj < 0.0 {
0.0
} else if proj > 1.0 {
1.0
} else {
proj
};
let color = Color::interpolate(start_color, end_color, scale);
self.line(rect_x, y, rect_x + rect_width as i32 - 1, y, color);
}
} else if start_y == end_y {
// Horizontal gradient
for x in rect_x..(rect_x + rect_width as i32) {
let proj = (x as f64 - start_x as f64) / (end_x as f64 - start_x as f64);
let scale = if proj < 0.0 {
0.0
} else if proj > 1.0 {
1.0
} else {
proj
};
let color = Color::interpolate(start_color, end_color, scale);
self.line(x, rect_y, x, rect_y + rect_height as i32 - 1, color);
}
} else {
// Non axis-aligned gradient
// Gradient vector
let grad_x = end_x as f64 - start_x as f64;
let grad_y = end_y as f64 - start_y as f64;
let grad_len = grad_x * grad_x + grad_y * grad_y;
for y in rect_y..(rect_y + rect_height as i32) {
for x in rect_x..(rect_x + rect_width as i32) {
// Pixel vector
let pix_x = x as f64 - start_x as f64;
let pix_y = y as f64 - start_y as f64;
// Scalar projection
let proj = (pix_x * grad_x + pix_y * grad_y) / grad_len;
// Saturation
let scale = if proj < 0.0 {
0.0
} else if proj > 1.0 {
1.0
} else {
proj
};
// Interpolation
let color = Color::interpolate(start_color, end_color, scale);
self.pixel(x, y, color);
}
}
}
}
/// Draw a rect with rounded corners
#[allow(clippy::too_many_arguments)]
fn rounded_rect(
&mut self,
x: i32,
y: i32,
w: u32,
h: u32,
radius: u32,
filled: bool,
color: Color,
) {
let w = w as i32;
let h = h as i32;
let r = radius as i32;
if filled {
//Draw inside corners
self.arc(x + r, y + r, -r, 1 << 4 | 1 << 6, color);
self.arc(x + w - 1 - r, y + r, -r, 1 << 5 | 1 << 7, color);
self.arc(x + r, y + h - 1 - r, -r, 1 << 0 | 1 << 2, color);
self.arc(x + w - 1 - r, y + h - 1 - r, -r, 1 << 1 | 1 << 3, color);
// Draw inside rectangles
self.rect(x + r, y, (w - 1 - r * 2) as u32, r as u32 + 1, color);
self.rect(
x + r,
y + h - 1 - r,
(w - 1 - r * 2) as u32,
r as u32 + 1,
color,
);
self.rect(x, y + r + 1, w as u32, (h - 2 - r * 2) as u32, color);
} else {
//Draw outside corners
self.arc(x + r, y + r, r, 1 << 4 | 1 << 6, color);
self.arc(x + w - 1 - r, y + r, r, 1 << 5 | 1 << 7, color);
self.arc(x + r, y + h - 1 - r, r, 1 << 0 | 1 << 2, color);
self.arc(x + w - 1 - r, y + h - 1 - r, r, 1 << 1 | 1 << 3, color);
// Draw outside rectangles
self.rect(x + r + 1, y, (w - 2 - r * 2) as u32, 1, color);
self.rect(x + r + 1, y + h - 1, (w - 2 - r * 2) as u32, 1, color);
self.rect(x, y + r + 1, 1, (h - 2 - r * 2) as u32, color);
self.rect(x + w - 1, y + r + 1, 1, (h - 2 - r * 2) as u32, color);
}
}
/// Draws antialiased line
#[cfg(feature = "std")]
fn wu_line(&mut self, x0: i32, y0: i32, x1: i32, y1: i32, color: Color) {
//adapted from https://rosettacode.org/wiki/Xiaolin_Wu's_line_algorithm#C.23
let mut x0 = x0 as f64;
let mut y0 = y0 as f64;
let mut x1 = x1 as f64;
let mut y1 = y1 as f64;
let r = color.r();
let g = color.g();
let b = color.b();
let a = color.a() as f64;
fn ipart(x: f64) -> i32 {
x.trunc() as i32
}
fn fpart(x: f64) -> f64 {
if x < 0.0 {
return 1.0 - (x - x.floor());
}
x - x.floor()
}
fn rfpart(x: f64) -> f64 {
1.0 - fpart(x)
}
fn chkalpha(mut alpha: f64) -> u8 {
if alpha > 255.0 {
alpha = 255.0
};
if alpha < 0.0 {
alpha = 0.0
};
alpha as u8
}
let steep: bool = (y1 - y0).abs() > (x1 - x0).abs();
let mut temp;
if steep {
temp = x0;
x0 = y0;
y0 = temp;
temp = x1;
x1 = y1;
y1 = temp;
}
if x0 > x1 {
temp = x0;
x0 = x1;
x1 = temp;
temp = y0;
y0 = y1;
y1 = temp;
}
let dx = x1 - x0;
let dy = y1 - y0;
let gradient = dy / dx;
let mut xend: f64 = x0.round();
let mut yend: f64 = y0 + gradient * (xend - x0);
let mut xgap: f64 = rfpart(x0 + 0.5);
let xpixel1 = xend as i32;
let ypixel1 = ipart(yend);
if steep {
self.pixel(
ypixel1,
xpixel1,
Color::rgba(r, g, b, chkalpha(rfpart(yend) * xgap * a)),
);
self.pixel(
ypixel1 + 1,
xpixel1,
Color::rgba(r, g, b, chkalpha(fpart(yend) * xgap * a)),
);
} else {
self.pixel(
xpixel1,
ypixel1,
Color::rgba(r, g, b, chkalpha(rfpart(yend) * xgap * a)),
);
self.pixel(
xpixel1 + 1,
ypixel1,
Color::rgba(r, g, b, chkalpha(fpart(yend) * xgap * a)),
);
}
let mut intery: f64 = yend + gradient;
xend = x1.round();
yend = y1 + gradient * (xend - x1);
xgap = fpart(x1 + 0.5);
let xpixel2 = xend as i32;
let ypixel2 = ipart(yend) ;
if steep {
self.pixel(
ypixel2,
xpixel2,
Color::rgba(r, g, b, chkalpha(rfpart(yend) * xgap * a)),
);
self.pixel(
ypixel2 + 1,
xpixel2,
Color::rgba(r, g, b, chkalpha(fpart(yend) * xgap * a)),
);
} else {
self.pixel(
xpixel2,
ypixel2,
Color::rgba(r, g, b, chkalpha(rfpart(yend) * xgap * a)),
);
self.pixel(
xpixel2 + 1,
ypixel2,
Color::rgba(r, g, b, chkalpha(fpart(yend) * xgap * a)),
);
}
if steep {
for x in (xpixel1 + 1)..(xpixel2) {
self.pixel(
ipart(intery),
x,
Color::rgba(r, g, b, chkalpha(a * rfpart(intery))),
);
self.pixel(
ipart(intery) + 1,
x,
Color::rgba(r, g, b, chkalpha(a * fpart(intery))),
);
intery += gradient;
}
} else {
for x in (xpixel1 + 1)..(xpixel2) {
self.pixel(
x,
ipart(intery),
Color::rgba(r, g, b, chkalpha(a * rfpart(intery))),
);
self.pixel(
x,
ipart(intery) + 1,
Color::rgba(r, g, b, chkalpha(a * fpart(intery))),
);
intery += gradient;
}
}
}
///Draws antialiased circle
#[cfg(feature = "std")]
fn wu_circle(&mut self, x0: i32, y0: i32, radius: i32, color: Color) {
let r = color.r();
let g = color.g();
let b = color.b();
let a = color.a();
let mut y = 0;
let mut x = radius;
let mut d = 0_f64;
self.pixel(x0 + x, y0 + y, color);
self.pixel(x0 - x, y0 - y, color);
self.pixel(x0 + y, y0 - x, color);
self.pixel(x0 - y, y0 + x, color);
while x > y {
let di = dist(radius, y);
if di < d {
x -= 1;
}
let col = Color::rgba(r, g, b, (a as f64 * (1.0 - di)) as u8);
let col2 = Color::rgba(r, g, b, (a as f64 * di) as u8);
self.pixel(x0 + x, y0 + y, col);
self.pixel(x0 + x - 1, y0 + y, col2); //-
self.pixel(x0 - x, y0 + y, col);
self.pixel(x0 - x + 1, y0 + y, col2); //+
self.pixel(x0 + x, y0 - y, col);
self.pixel(x0 + x - 1, y0 - y, col2); //-
self.pixel(x0 - x, y0 - y, col);
self.pixel(x0 - x + 1, y0 - y, col2); //+
self.pixel(x0 + y, y0 + x, col);
self.pixel(x0 + y, y0 + x - 1, col2);
self.pixel(x0 - y, y0 + x, col);
self.pixel(x0 - y, y0 + x - 1, col2);
self.pixel(x0 + y, y0 - x, col);
self.pixel(x0 + y, y0 - x + 1, col2);
self.pixel(x0 - y, y0 - x, col);
self.pixel(x0 - y, y0 - x + 1, col2);
d = di;
y += 1;
}
fn dist(r: i32, y: i32) -> f64 {
let x: f64 = ((r * r - y * y) as f64).sqrt();
x.ceil() - x
}
}
///Gets pixel color at x,y position
fn getpixel(&self, x: i32, y: i32) -> Color {
let p = (self.width() as i32 * y + x) as usize;
if p >= self.data().len() {
return Color::rgba(0, 0, 0, 0);
}
self.data()[p]
}
}

440
vendor/orbclient/src/sys/orbital.rs vendored Normal file
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// SPDX-License-Identifier: MIT
use std::cell::Cell;
use std::fs::File;
use std::io::{Read, Write};
use std::os::unix::io::{AsRawFd, FromRawFd, IntoRawFd, RawFd};
use std::{env, mem, slice, thread};
use libredox::{call as redox, flag};
use crate::color::Color;
use crate::event::{Event, EVENT_RESIZE};
use crate::renderer::Renderer;
use crate::Mode;
use crate::WindowFlag;
pub fn get_display_size() -> Result<(u32, u32), String> {
let display_path = env::var("DISPLAY").or(Err("DISPLAY not set"))?;
match File::open(&display_path) {
Ok(display) => {
let mut buf: [u8; 4096] = [0; 4096];
let count = redox::fpath(display.as_raw_fd() as usize, &mut buf)
.map_err(|err| format!("{}", err))?;
let path = unsafe { String::from_utf8_unchecked(Vec::from(&buf[..count])) };
let res = path.split(":").nth(1).unwrap_or("");
let width = res
.split("/")
.nth(1)
.unwrap_or("")
.parse::<u32>()
.unwrap_or(0);
let height = res
.split("/")
.nth(2)
.unwrap_or("")
.parse::<u32>()
.unwrap_or(0);
Ok((width, height))
}
Err(err) => Err(format!("{}", err)),
}
}
/// A window
pub struct Window {
/// The x coordinate of the window
x: i32,
/// The y coordinate of the window
y: i32,
/// The width of the window
w: u32,
/// The height of the window
h: u32,
/// The title of the window
t: String,
/// True if the window should not wait for events
window_async: bool,
/// True if the window can be resized
resizable: bool,
/// Drawing mode
mode: Cell<Mode>,
/// The input scheme
file_opt: Option<File>,
/// Window data
data_opt: Option<&'static mut [Color]>,
}
impl Renderer for Window {
/// Get width
fn width(&self) -> u32 {
self.w
}
/// Get height
fn height(&self) -> u32 {
self.h
}
/// Access pixel buffer
fn data(&self) -> &[Color] {
self.data_opt.as_ref().unwrap()
}
/// Access pixel buffer mutably
fn data_mut(&mut self) -> &mut [Color] {
self.data_opt.as_mut().unwrap()
}
/// Flip the buffer
fn sync(&mut self) -> bool {
self.file_mut().sync_data().is_ok()
}
/// Set/get mode
fn mode(&self) -> &Cell<Mode> {
&self.mode
}
}
impl Window {
/// Create a new window
pub fn new(x: i32, y: i32, w: u32, h: u32, title: &str) -> Option<Self> {
Window::new_flags(x, y, w, h, title, &[])
}
/// Create a new window with flags
pub fn new_flags(
x: i32,
y: i32,
w: u32,
h: u32,
title: &str,
flags: &[WindowFlag],
) -> Option<Self> {
let mut flag_str = String::new();
let mut window_async = false;
let mut resizable = false;
for &flag in flags.iter() {
match flag {
WindowFlag::Async => {
window_async = true;
flag_str.push('a');
}
WindowFlag::Back => flag_str.push('b'),
WindowFlag::Front => flag_str.push('f'),
WindowFlag::Borderless => flag_str.push('l'),
WindowFlag::Resizable => {
resizable = true;
flag_str.push('r');
}
WindowFlag::Transparent => flag_str.push('t'),
WindowFlag::Unclosable => flag_str.push('u'),
}
}
if let Ok(file) = File::open(&format!(
"orbital:{}/{}/{}/{}/{}/{}",
flag_str, x, y, w, h, title
)) {
let mut window = Window {
x,
y,
w,
h,
t: title.to_string(),
window_async,
resizable,
mode: Cell::new(Mode::Blend),
file_opt: Some(file),
data_opt: None,
};
unsafe { window.remap(); }
Some(window)
} else {
None
}
}
pub fn clipboard(&self) -> String {
let mut text = String::new();
let window_fd = self.file().as_raw_fd();
if let Ok(clipboard_fd) = redox::dup(window_fd as usize, b"clipboard") {
let mut clipboard_file = unsafe { File::from_raw_fd(clipboard_fd as RawFd) };
let _ = clipboard_file.read_to_string(&mut text);
}
text
}
pub fn set_clipboard(&mut self, text: &str) {
let window_fd = self.file().as_raw_fd();
if let Ok(clipboard_fd) = redox::dup(window_fd as usize, b"clipboard") {
let mut clipboard_file = unsafe { File::from_raw_fd(clipboard_fd as RawFd) };
let _ = clipboard_file.write(text.as_bytes());
}
}
/// Not yet available on Redox OS.
pub fn pop_drop_content(&self) -> Option<String> {
None
}
// TODO: Replace with smarter mechanism, maybe a move event?
pub fn sync_path(&mut self) {
let mut buf: [u8; 4096] = [0; 4096];
if let Ok(count) = redox::fpath(self.file().as_raw_fd() as usize, &mut buf) {
let path = unsafe { String::from_utf8_unchecked(Vec::from(&buf[..count])) };
// orbital:/x/y/w/h/t
let mut parts = path.split('/');
if let Some(flags) = parts.next() {
self.window_async = flags.contains('a');
self.resizable = flags.contains('r');
}
if let Some(x) = parts.next() {
self.x = x.parse::<i32>().unwrap_or(0);
}
if let Some(y) = parts.next() {
self.y = y.parse::<i32>().unwrap_or(0);
}
if let Some(w) = parts.next() {
self.w = w.parse::<u32>().unwrap_or(0);
}
if let Some(h) = parts.next() {
self.h = h.parse::<u32>().unwrap_or(0);
}
if let Some(t) = parts.next() {
self.t = t.to_string();
}
}
}
/// Get x
// TODO: Sync with window movements
pub fn x(&self) -> i32 {
self.x
}
/// Get y
// TODO: Sync with window movements
pub fn y(&self) -> i32 {
self.y
}
/// Get title
pub fn title(&self) -> String {
self.t.clone()
}
/// Get async
pub fn is_async(&self) -> bool {
self.window_async
}
/// Set async
pub fn set_async(&mut self, is_async: bool) {
self.window_async = is_async;
let _ = self.file_mut().write(if is_async { b"A,1" } else { b"A,0" });
}
/// Set cursor visibility
pub fn set_mouse_cursor(&mut self, visible: bool) {
let _ = self.file_mut().write(if visible { b"M,C,1" } else { b"M,C,0" });
}
/// Set mouse grabbing
pub fn set_mouse_grab(&mut self, grab: bool) {
let _ = self.file_mut().write(if grab { b"M,G,1" } else { b"M,G,0" });
}
/// Set mouse relative mode
pub fn set_mouse_relative(&mut self, relative: bool) {
let _ = self.file_mut().write(if relative { b"M,R,1" } else { b"M,R,0" });
}
/// Set position
pub fn set_pos(&mut self, x: i32, y: i32) {
let _ = self.file_mut().write(&format!("P,{},{}", x, y).as_bytes());
self.sync_path();
}
/// Set size
pub fn set_size(&mut self, width: u32, height: u32) {
//TODO: Improve safety and reliability
unsafe { self.unmap(); }
let _ = self
.file_mut()
.write(&format!("S,{},{}", width, height).as_bytes());
self.sync_path();
unsafe { self.remap(); }
}
/// Set title
pub fn set_title(&mut self, title: &str) {
let _ = self.file_mut().write(&format!("T,{}", title).as_bytes());
self.sync_path();
}
/// Blocking iterator over events
pub fn events(&mut self) -> EventIter {
let mut iter = EventIter {
extra: None,
events: [Event::new(); 16],
i: 0,
count: 0,
};
'blocking: loop {
if iter.count == iter.events.len() {
if iter.extra.is_none() {
iter.extra = Some(Vec::with_capacity(32));
}
iter.extra.as_mut().unwrap().extend_from_slice(&iter.events);
iter.count = 0;
}
let bytes = unsafe {
slice::from_raw_parts_mut(
iter.events[iter.count..].as_mut_ptr() as *mut u8,
iter.events[iter.count..].len() * mem::size_of::<Event>(),
)
};
match self.file_mut().read(bytes) {
Ok(0) => {
if !self.window_async && iter.extra.is_none() && iter.count == 0 {
thread::yield_now();
} else {
break 'blocking;
}
}
Ok(count) => {
let count = count / mem::size_of::<Event>();
let events = &iter.events[iter.count..][..count];
iter.count += count;
if self.resizable {
let mut resize = None;
for event in events {
let event = *event;
if event.code == EVENT_RESIZE {
resize = Some((event.a as u32, event.b as u32));
}
}
if let Some((w, h)) = resize {
self.set_size(w, h);
}
}
if !self.window_async {
// Synchronous windows are blocking, can't attempt another read
break 'blocking;
}
}
Err(_) => break 'blocking,
}
}
iter
}
fn file(&self) -> &File {
self.file_opt.as_ref().unwrap()
}
fn file_mut(&mut self) -> &mut File {
self.file_opt.as_mut().unwrap()
}
unsafe fn remap(&mut self) {
self.unmap();
let size = (self.w * self.h) as usize;
let address = redox::mmap(redox::MmapArgs {
fd: self.file().as_raw_fd() as usize,
offset: 0,
length: size * mem::size_of::<Color>(),
flags: flag::MAP_SHARED,
prot: flag::PROT_READ | flag::PROT_WRITE,
addr: core::ptr::null_mut(),
}).expect("orbclient: failed to map memory");
self.data_opt = Some(
slice::from_raw_parts_mut(address.cast::<Color>(), size)
);
}
unsafe fn unmap(&mut self) {
if let Some(data) = self.data_opt.take() {
redox::munmap(
data.as_mut_ptr().cast(),
data.len() * mem::size_of::<Color>(),
).expect("orbclient: failed to unmap memory");
}
}
}
impl Drop for Window {
fn drop(&mut self) {
unsafe { self.unmap(); }
}
}
impl AsRawFd for Window {
fn as_raw_fd(&self) -> RawFd {
self.file().as_raw_fd()
}
}
impl FromRawFd for Window {
unsafe fn from_raw_fd(fd: RawFd) -> Window {
let mut window = Window {
x: 0,
y: 0,
w: 0,
h: 0,
t: String::new(),
window_async: false,
resizable: false,
mode: Cell::new(Mode::Blend),
file_opt: Some(File::from_raw_fd(fd)),
data_opt: None,
};
window.sync_path();
window.remap();
window
}
}
impl IntoRawFd for Window {
fn into_raw_fd(mut self) -> RawFd {
self.file_opt.take().unwrap().into_raw_fd()
}
}
/// Event iterator
pub struct EventIter {
extra: Option<Vec<Event>>,
events: [Event; 16],
i: usize,
count: usize,
}
impl Iterator for EventIter {
type Item = Event;
fn next(&mut self) -> Option<Event> {
let mut i = self.i;
if let Some(ref mut extra) = self.extra {
if i < extra.len() {
self.i += 1;
return Some(extra[i]);
}
i -= extra.len();
}
if i < self.count {
self.i += 1;
return Some(self.events[i]);
}
None
}
}

624
vendor/orbclient/src/sys/sdl2.rs vendored Normal file
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// SPDX-License-Identifier: MIT
use std::cell::{Cell, RefCell};
use std::sync::atomic::{AtomicUsize, Ordering};
use std::{mem, ptr, slice};
use crate::color::Color;
use crate::event::*;
use crate::renderer::Renderer;
use crate::Mode;
use crate::WindowFlag;
static SDL_USAGES: AtomicUsize = AtomicUsize::new(0);
/// SDL2 Context
static mut SDL_CTX: *mut sdl2::Sdl = ptr::null_mut();
/// Video Context
static mut VIDEO_CTX: *mut sdl2::VideoSubsystem = ptr::null_mut();
/// Event Pump
static mut EVENT_PUMP: *mut sdl2::EventPump = ptr::null_mut();
//Call this when the CTX needs to be used is created
#[inline]
unsafe fn init() {
if SDL_USAGES.fetch_add(1, Ordering::Relaxed) == 0 {
SDL_CTX = Box::into_raw(Box::new(sdl2::init().unwrap()));
VIDEO_CTX = Box::into_raw(Box::new((*SDL_CTX).video().unwrap()));
EVENT_PUMP = Box::into_raw(Box::new((*SDL_CTX).event_pump().unwrap()));
}
}
// Call this when drop the sdl2 CTX.
#[inline]
unsafe fn cleanup() {
if SDL_USAGES.fetch_sub(1, Ordering::Relaxed) == 0 {
return;
}
drop(Box::from_raw(SDL_CTX));
drop(Box::from_raw(VIDEO_CTX));
drop(Box::from_raw(EVENT_PUMP));
}
/// Return the (width, height) of the display in pixels
pub fn get_display_size() -> Result<(u32, u32), String> {
unsafe { init() };
unsafe { &*VIDEO_CTX }
.display_bounds(0)
.map(|rect| (rect.width(), rect.height()))
}
/// A window
#[allow(dead_code)]
pub struct Window {
/// The x coordinate of the window
x: i32,
/// The y coordinate of the window
y: i32,
/// The width of the window
w: u32,
/// The height of the window
h: u32,
/// The title of the window
t: String,
/// True if the window should not wait for events
window_async: bool,
/// Drawing mode
mode: Cell<Mode>,
/// The inner renderer
inner: sdl2::render::WindowCanvas,
/// Mouse in relative mode
mouse_relative: bool,
/// Content of the last drop (file | text) operation
drop_content: RefCell<Option<String>>,
}
impl Drop for Window {
fn drop(&mut self) {
unsafe {
cleanup();
}
}
}
impl Renderer for Window {
/// Get width
fn width(&self) -> u32 {
self.w
}
/// Get height
fn height(&self) -> u32 {
self.h
}
/// Access pixel buffer
fn data(&self) -> &[Color] {
let window = self.inner.window();
let surface = window.surface(unsafe { &*EVENT_PUMP }).unwrap();
let bytes = surface.without_lock().unwrap();
unsafe {
slice::from_raw_parts(
bytes.as_ptr() as *const Color,
bytes.len() / mem::size_of::<Color>(),
)
}
}
/// Access pixel buffer mutably
fn data_mut(&mut self) -> &mut [Color] {
let window = self.inner.window_mut();
let mut surface = window.surface(unsafe { &*EVENT_PUMP }).unwrap();
let bytes = surface.without_lock_mut().unwrap();
unsafe {
slice::from_raw_parts_mut(
bytes.as_mut_ptr() as *mut Color,
bytes.len() / mem::size_of::<Color>(),
)
}
}
/// Flip the window buffer
fn sync(&mut self) -> bool {
self.inner.present();
true
}
/// Set/get mode
fn mode(&self) -> &Cell<Mode> {
&self.mode
}
}
impl Window {
/// Create a new window
pub fn new(x: i32, y: i32, w: u32, h: u32, title: &str) -> Option<Self> {
Window::new_flags(x, y, w, h, title, &[])
}
/// Create a new window with flags
pub fn new_flags(
x: i32,
y: i32,
w: u32,
h: u32,
title: &str,
flags: &[WindowFlag],
) -> Option<Self> {
//Insure that init has been called
unsafe { init() };
let mut window_async = false;
//TODO: Use z-order
let mut _back = false;
let mut _front = false;
let mut borderless = false;
let mut resizable = false;
//TODO: Transparent
let mut _transparent = false;
//TODO: Hide exit button
let mut _unclosable = false;
for &flag in flags.iter() {
match flag {
WindowFlag::Async => window_async = true,
WindowFlag::Back => _back = true,
WindowFlag::Front => _front = true,
WindowFlag::Borderless => borderless = true,
WindowFlag::Resizable => resizable = true,
WindowFlag::Transparent => _transparent = true,
WindowFlag::Unclosable => _unclosable = true,
}
}
let mut builder = unsafe { &*VIDEO_CTX }.window(title, w, h);
{
builder.allow_highdpi();
}
if borderless {
builder.borderless();
}
if resizable {
builder.resizable();
}
if x >= 0 || y >= 0 {
builder.position(x, y);
}
match builder.build() {
Ok(window) => Some(Window {
x,
y,
w,
h,
t: title.to_string(),
window_async,
mode: Cell::new(Mode::Blend),
inner: window.into_canvas().software().build().unwrap(),
mouse_relative: false,
drop_content: RefCell::new(None),
}),
Err(_) => None,
}
}
pub fn event_sender(&self) -> sdl2::event::EventSender {
unsafe { &mut *SDL_CTX }.event().unwrap().event_sender()
}
pub fn clipboard(&self) -> String {
let result = unsafe { &*VIDEO_CTX }.clipboard().clipboard_text();
match result {
Ok(value) => return value,
Err(message) => println!("{}", message),
}
String::default()
}
pub fn set_clipboard(&mut self, text: &str) {
let result = unsafe { &*VIDEO_CTX }.clipboard().set_clipboard_text(text);
if let Err(message) = result {
println!("{}", message);
}
}
/// Pops the content of the last drop event from the window.
pub fn pop_drop_content(&self) -> Option<String> {
let result = self.drop_content.borrow().clone();
*self.drop_content.borrow_mut() = None;
result
}
pub fn sync_path(&mut self) {
let window = self.inner.window();
let pos = window.position();
let size = window.size();
let title = window.title();
self.x = pos.0;
self.y = pos.1;
self.w = size.0;
self.h = size.1;
self.t = title.to_string();
}
/// Get x
// TODO: Sync with window movements
pub fn x(&self) -> i32 {
self.x
}
/// Get y
// TODO: Sync with window movements
pub fn y(&self) -> i32 {
self.y
}
/// Get title
pub fn title(&self) -> String {
self.t.clone()
}
/// Get async
pub fn is_async(&self) -> bool {
self.window_async
}
/// Set async
pub fn set_async(&mut self, is_async: bool) {
self.window_async = is_async;
}
/// Set cursor visibility
pub fn set_mouse_cursor(&mut self, visible: bool) {
unsafe { &mut *SDL_CTX }.mouse().show_cursor(visible);
}
/// Set mouse grabbing
pub fn set_mouse_grab(&mut self, grab: bool) {
unsafe { &mut *SDL_CTX }.mouse().capture(grab);
}
/// Set mouse relative mode
pub fn set_mouse_relative(&mut self, relative: bool) {
unsafe { &mut *SDL_CTX }
.mouse()
.set_relative_mouse_mode(relative);
self.mouse_relative = relative;
}
/// Set position
pub fn set_pos(&mut self, x: i32, y: i32) {
self.inner.window_mut().set_position(
sdl2::video::WindowPos::Positioned(x),
sdl2::video::WindowPos::Positioned(y),
);
self.sync_path();
}
/// Set size
pub fn set_size(&mut self, width: u32, height: u32) {
let _ = self.inner.window_mut().set_size(width, height);
self.sync_path();
}
/// Set title
pub fn set_title(&mut self, title: &str) {
let _ = self.inner.window_mut().set_title(title);
self.sync_path();
}
fn convert_scancode(
&self,
scancode_option: Option<sdl2::keyboard::Scancode>,
shift: bool,
) -> Option<(char, u8)> {
if let Some(scancode) = scancode_option {
match scancode {
sdl2::keyboard::Scancode::A => Some((if shift { 'A' } else { 'a' }, K_A)),
sdl2::keyboard::Scancode::B => Some((if shift { 'B' } else { 'b' }, K_B)),
sdl2::keyboard::Scancode::C => Some((if shift { 'C' } else { 'c' }, K_C)),
sdl2::keyboard::Scancode::D => Some((if shift { 'D' } else { 'd' }, K_D)),
sdl2::keyboard::Scancode::E => Some((if shift { 'E' } else { 'e' }, K_E)),
sdl2::keyboard::Scancode::F => Some((if shift { 'F' } else { 'f' }, K_F)),
sdl2::keyboard::Scancode::G => Some((if shift { 'G' } else { 'g' }, K_G)),
sdl2::keyboard::Scancode::H => Some((if shift { 'H' } else { 'h' }, K_H)),
sdl2::keyboard::Scancode::I => Some((if shift { 'I' } else { 'i' }, K_I)),
sdl2::keyboard::Scancode::J => Some((if shift { 'J' } else { 'j' }, K_J)),
sdl2::keyboard::Scancode::K => Some((if shift { 'K' } else { 'k' }, K_K)),
sdl2::keyboard::Scancode::L => Some((if shift { 'L' } else { 'l' }, K_L)),
sdl2::keyboard::Scancode::M => Some((if shift { 'M' } else { 'm' }, K_M)),
sdl2::keyboard::Scancode::N => Some((if shift { 'N' } else { 'n' }, K_N)),
sdl2::keyboard::Scancode::O => Some((if shift { 'O' } else { 'o' }, K_O)),
sdl2::keyboard::Scancode::P => Some((if shift { 'P' } else { 'p' }, K_P)),
sdl2::keyboard::Scancode::Q => Some((if shift { 'Q' } else { 'q' }, K_Q)),
sdl2::keyboard::Scancode::R => Some((if shift { 'R' } else { 'r' }, K_R)),
sdl2::keyboard::Scancode::S => Some((if shift { 'S' } else { 's' }, K_S)),
sdl2::keyboard::Scancode::T => Some((if shift { 'T' } else { 't' }, K_T)),
sdl2::keyboard::Scancode::U => Some((if shift { 'U' } else { 'u' }, K_U)),
sdl2::keyboard::Scancode::V => Some((if shift { 'V' } else { 'v' }, K_V)),
sdl2::keyboard::Scancode::W => Some((if shift { 'W' } else { 'w' }, K_W)),
sdl2::keyboard::Scancode::X => Some((if shift { 'X' } else { 'x' }, K_X)),
sdl2::keyboard::Scancode::Y => Some((if shift { 'Y' } else { 'y' }, K_Y)),
sdl2::keyboard::Scancode::Z => Some((if shift { 'Z' } else { 'z' }, K_Z)),
sdl2::keyboard::Scancode::Num0 => Some((if shift { ')' } else { '0' }, K_0)),
sdl2::keyboard::Scancode::Num1 => Some((if shift { '!' } else { '1' }, K_1)),
sdl2::keyboard::Scancode::Num2 => Some((if shift { '@' } else { '2' }, K_2)),
sdl2::keyboard::Scancode::Num3 => Some((if shift { '#' } else { '3' }, K_3)),
sdl2::keyboard::Scancode::Num4 => Some((if shift { '$' } else { '4' }, K_4)),
sdl2::keyboard::Scancode::Num5 => Some((if shift { '%' } else { '5' }, K_5)),
sdl2::keyboard::Scancode::Num6 => Some((if shift { '^' } else { '6' }, K_6)),
sdl2::keyboard::Scancode::Num7 => Some((if shift { '&' } else { '7' }, K_7)),
sdl2::keyboard::Scancode::Num8 => Some((if shift { '*' } else { '8' }, K_8)),
sdl2::keyboard::Scancode::Num9 => Some((if shift { '(' } else { '9' }, K_9)),
sdl2::keyboard::Scancode::Grave => Some((if shift { '~' } else { '`' }, K_TICK)),
sdl2::keyboard::Scancode::Minus => Some((if shift { '_' } else { '-' }, K_MINUS)),
sdl2::keyboard::Scancode::Equals => Some((if shift { '+' } else { '=' }, K_EQUALS)),
sdl2::keyboard::Scancode::LeftBracket => {
Some((if shift { '{' } else { '[' }, K_BRACE_OPEN))
}
sdl2::keyboard::Scancode::RightBracket => {
Some((if shift { '}' } else { ']' }, K_BRACE_CLOSE))
}
sdl2::keyboard::Scancode::Backslash => {
Some((if shift { '|' } else { '\\' }, K_BACKSLASH))
}
sdl2::keyboard::Scancode::Semicolon => {
Some((if shift { ':' } else { ';' }, K_SEMICOLON))
}
sdl2::keyboard::Scancode::Apostrophe => {
Some((if shift { '"' } else { '\'' }, K_QUOTE))
}
sdl2::keyboard::Scancode::Comma => Some((if shift { '<' } else { ',' }, K_COMMA)),
sdl2::keyboard::Scancode::Period => Some((if shift { '>' } else { '.' }, K_PERIOD)),
sdl2::keyboard::Scancode::Slash => Some((if shift { '?' } else { '/' }, K_SLASH)),
sdl2::keyboard::Scancode::Space => Some((' ', K_SPACE)),
sdl2::keyboard::Scancode::Backspace => Some(('\0', K_BKSP)),
sdl2::keyboard::Scancode::Tab => Some(('\t', K_TAB)),
sdl2::keyboard::Scancode::LCtrl => Some(('\0', K_CTRL)),
sdl2::keyboard::Scancode::RCtrl => Some(('\0', K_CTRL)),
sdl2::keyboard::Scancode::LAlt => Some(('\0', K_ALT)),
sdl2::keyboard::Scancode::RAlt => Some(('\0', K_ALT)),
sdl2::keyboard::Scancode::Return => Some(('\n', K_ENTER)),
sdl2::keyboard::Scancode::Escape => Some(('\x1B', K_ESC)),
sdl2::keyboard::Scancode::F1 => Some(('\0', K_F1)),
sdl2::keyboard::Scancode::F2 => Some(('\0', K_F2)),
sdl2::keyboard::Scancode::F3 => Some(('\0', K_F3)),
sdl2::keyboard::Scancode::F4 => Some(('\0', K_F4)),
sdl2::keyboard::Scancode::F5 => Some(('\0', K_F5)),
sdl2::keyboard::Scancode::F6 => Some(('\0', K_F6)),
sdl2::keyboard::Scancode::F7 => Some(('\0', K_F7)),
sdl2::keyboard::Scancode::F8 => Some(('\0', K_F8)),
sdl2::keyboard::Scancode::F9 => Some(('\0', K_F9)),
sdl2::keyboard::Scancode::F10 => Some(('\0', K_F10)),
sdl2::keyboard::Scancode::Home => Some(('\0', K_HOME)),
sdl2::keyboard::Scancode::LGui => Some(('\0', K_HOME)),
sdl2::keyboard::Scancode::Up => Some(('\0', K_UP)),
sdl2::keyboard::Scancode::PageUp => Some(('\0', K_PGUP)),
sdl2::keyboard::Scancode::Left => Some(('\0', K_LEFT)),
sdl2::keyboard::Scancode::Right => Some(('\0', K_RIGHT)),
sdl2::keyboard::Scancode::End => Some(('\0', K_END)),
sdl2::keyboard::Scancode::Down => Some(('\0', K_DOWN)),
sdl2::keyboard::Scancode::PageDown => Some(('\0', K_PGDN)),
sdl2::keyboard::Scancode::Delete => Some(('\0', K_DEL)),
sdl2::keyboard::Scancode::F11 => Some(('\0', K_F11)),
sdl2::keyboard::Scancode::F12 => Some(('\0', K_F12)),
sdl2::keyboard::Scancode::LShift => Some(('\0', K_LEFT_SHIFT)),
sdl2::keyboard::Scancode::RShift => Some(('\0', K_RIGHT_SHIFT)),
_ => None,
}
} else {
None
}
}
fn get_mouse_position(&self) -> (i32, i32) {
unsafe {
let p_x: *mut i32 = libc::malloc(mem::size_of::<i32>()) as *mut i32;
let p_y: *mut i32 = libc::malloc(mem::size_of::<i32>()) as *mut i32;
sdl2_sys::SDL_GetMouseState(p_x, p_y);
(*p_x, *p_y)
}
}
fn convert_event(&self, event: sdl2::event::Event) -> Vec<Event> {
let mut events = Vec::new();
let button_event = || -> Event {
let mouse = unsafe { &mut *EVENT_PUMP }.mouse_state();
ButtonEvent {
left: mouse.left(),
middle: mouse.middle(),
right: mouse.right(),
}
.to_event()
};
let mods = unsafe { &mut *SDL_CTX }.keyboard().mod_state();
let shift = mods.contains(sdl2::keyboard::Mod::CAPSMOD)
|| mods.contains(sdl2::keyboard::Mod::LSHIFTMOD)
|| mods.contains(sdl2::keyboard::Mod::RSHIFTMOD);
match event {
sdl2::event::Event::RenderTargetsReset { .. } => {
events.push(Event::new());
}
sdl2::event::Event::Window { win_event, .. } => match win_event {
sdl2::event::WindowEvent::Moved(x, y) => {
events.push(MoveEvent { x, y }.to_event())
}
sdl2::event::WindowEvent::Resized(w, h) => events.push(
ResizeEvent {
width: w as u32,
height: h as u32,
}
.to_event(),
),
sdl2::event::WindowEvent::FocusGained => {
events.push(FocusEvent { focused: true }.to_event())
}
sdl2::event::WindowEvent::FocusLost => {
events.push(FocusEvent { focused: false }.to_event())
}
sdl2::event::WindowEvent::Enter => {
events.push(HoverEvent { entered: true }.to_event())
}
sdl2::event::WindowEvent::Leave => {
events.push(HoverEvent { entered: false }.to_event())
}
sdl2::event::WindowEvent::None => events.push(Event::new()),
_ => (),
},
sdl2::event::Event::ClipboardUpdate { .. } => {
events.push(ClipboardUpdateEvent.to_event())
}
sdl2::event::Event::MouseMotion {
x, y, xrel, yrel, ..
} => {
if self.mouse_relative {
events.push(MouseRelativeEvent { dx: xrel, dy: yrel }.to_event())
} else {
events.push(MouseEvent { x, y }.to_event())
}
}
sdl2::event::Event::MouseButtonDown { .. } => events.push(button_event()),
sdl2::event::Event::MouseButtonUp { .. } => events.push(button_event()),
sdl2::event::Event::MouseWheel { x, y, .. } => {
events.push(ScrollEvent { x, y }.to_event())
}
sdl2::event::Event::TextInput { text, .. } => {
for character in text.chars() {
events.push(
TextInputEvent {
character,
}
.to_event(),
);
}
}
sdl2::event::Event::KeyDown { scancode, .. } => {
if let Some(code) = self.convert_scancode(scancode, shift) {
events.push(
KeyEvent {
character: code.0,
scancode: code.1,
pressed: true,
}
.to_event(),
);
}
}
sdl2::event::Event::DropFile { filename, .. } => {
*self.drop_content.borrow_mut() = Some(filename);
let (x, y) = self.get_mouse_position();
events.push(MouseEvent { x, y }.to_event());
events.push(DropEvent { kind: DROP_FILE }.to_event())
}
sdl2::event::Event::DropText { filename, .. } => {
*self.drop_content.borrow_mut() = Some(filename);
let (x, y) = self.get_mouse_position();
events.push(MouseEvent { x, y }.to_event());
events.push(DropEvent { kind: DROP_TEXT }.to_event())
}
sdl2::event::Event::KeyUp { scancode, .. } => {
if let Some(code) = self.convert_scancode(scancode, shift) {
events.push(
KeyEvent {
character: code.0,
scancode: code.1,
pressed: false,
}
.to_event(),
);
}
}
sdl2::event::Event::Quit { .. } => events.push(QuitEvent.to_event()),
_ => (),
}
events
}
/// Blocking iterator over events
pub fn events(&mut self) -> EventIter {
let mut iter = EventIter {
events: [Event::new(); 16],
i: 0,
count: 0,
};
if !self.window_async {
let event = unsafe { &mut *EVENT_PUMP }.wait_event();
if let sdl2::event::Event::Window { .. } = event {
self.sync_path();
}
for converted_event in self.convert_event(event) {
if iter.count < iter.events.len() {
iter.events[iter.count] = converted_event;
iter.count += 1;
} else {
break;
}
}
}
while let Some(event) = unsafe { &mut *EVENT_PUMP }.poll_event() {
if let sdl2::event::Event::Window { .. } = event {
self.sync_path();
}
for converted_event in self.convert_event(event) {
if iter.count < iter.events.len() {
iter.events[iter.count] = converted_event;
iter.count += 1;
} else {
break;
}
}
if iter.count + 2 < iter.events.len() {
break;
}
}
iter
}
/// Returns the id
pub fn id(&self) -> u32 {
self.inner.window().id()
}
}
/// Event iterator
pub struct EventIter {
events: [Event; 16],
i: usize,
count: usize,
}
impl Iterator for EventIter {
type Item = Event;
fn next(&mut self) -> Option<Event> {
if self.i < self.count {
if let Some(event) = self.events.get(self.i) {
self.i += 1;
Some(*event)
} else {
None
}
} else {
None
}
}
}