mirror of
https://github.com/slint-ui/slint.git
synced 2025-09-29 05:14:48 +00:00
b75e9a8cf3
This reverts commit dea0990fb1.
Otherwise the dirty tracker don't register dependency on x and y
783 lines
29 KiB
Rust
783 lines
29 KiB
Rust
// Copyright © SixtyFPS GmbH <info@slint-ui.com>
|
|
// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-commercial
|
|
|
|
mod draw_functions;
|
|
|
|
use crate::{
|
|
profiler, Devices, LogicalItemGeometry, LogicalLength, LogicalPoint, LogicalRect,
|
|
PhysicalLength, PhysicalPoint, PhysicalRect, PhysicalSize, PointLengths, RectLengths,
|
|
ScaleFactor, SizeLengths,
|
|
};
|
|
use alloc::rc::Rc;
|
|
use alloc::{vec, vec::Vec};
|
|
use core::pin::Pin;
|
|
use embedded_graphics::pixelcolor::Rgb888;
|
|
use i_slint_core::graphics::{FontRequest, IntRect, PixelFormat, Rect as RectF};
|
|
use i_slint_core::item_rendering::PartialRenderingCache;
|
|
use i_slint_core::textlayout::TextParagraphLayout;
|
|
use i_slint_core::{Color, ImageInner, StaticTextures};
|
|
|
|
type DirtyRegion = PhysicalRect;
|
|
|
|
pub fn render_window_frame(
|
|
runtime_window: Rc<i_slint_core::window::Window>,
|
|
background: Rgb888,
|
|
devices: &mut dyn Devices,
|
|
cache: &mut PartialRenderingCache,
|
|
) {
|
|
let size = devices.screen_size();
|
|
let mut scene = prepare_scene(runtime_window, size, devices, cache);
|
|
|
|
/*for item in scene.future_items {
|
|
match item.command {
|
|
SceneCommand::Rectangle { color } => {
|
|
embedded_graphics::primitives::Rectangle {
|
|
top_left: Point { x: item.x as _, y: item.y as _ },
|
|
size: Size { width: item.width as _, height: item.height as _ },
|
|
}
|
|
.into_styled(
|
|
embedded_graphics::primitives::PrimitiveStyleBuilder::new()
|
|
.fill_color(Rgb888::new(color.red(), color.green(), color.blue()))
|
|
.build(),
|
|
)
|
|
.draw(display)
|
|
.unwrap();
|
|
}
|
|
SceneCommand::Texture { data, format, stride, source_width, source_height, color } => {
|
|
let sx = item.width as f32 / source_width as f32;
|
|
let sy = item.height as f32 / source_height as f32;
|
|
let bpp = bpp(format) as usize;
|
|
for y in 0..item.height {
|
|
let pixel_iter = (0..item.width).into_iter().map(|x| {
|
|
let pos = ((y as f32 / sy) as usize * stride as usize)
|
|
+ (x as f32 / sx) as usize * bpp;
|
|
to_color(&data[pos..], format, color)
|
|
});
|
|
|
|
display
|
|
.fill_contiguous(
|
|
&embedded_graphics::primitives::Rectangle::new(
|
|
Point::new(item.x as i32, (item.y + y) as i32),
|
|
Size::new(item.width as u32, 1),
|
|
),
|
|
pixel_iter,
|
|
)
|
|
.unwrap()
|
|
}
|
|
}
|
|
}
|
|
}*/
|
|
|
|
let mut line_processing_profiler = profiler::Timer::new_stopped();
|
|
let mut span_drawing_profiler = profiler::Timer::new_stopped();
|
|
let mut screen_fill_profiler = profiler::Timer::new_stopped();
|
|
|
|
let mut line_buffer = vec![background; size.width as usize];
|
|
let dirty_region = scene.dirty_region;
|
|
|
|
debug_assert!(scene.current_line >= dirty_region.origin.y_length());
|
|
while scene.current_line < dirty_region.origin.y_length() + dirty_region.size.height_length() {
|
|
line_buffer.fill(background);
|
|
span_drawing_profiler.start(devices);
|
|
for span in scene.items[0..scene.current_items_index].iter().rev() {
|
|
debug_assert!(scene.current_line >= span.pos.y_length());
|
|
debug_assert!(scene.current_line < span.pos.y_length() + span.size.height_length(),);
|
|
match span.command {
|
|
SceneCommand::Rectangle { color } => {
|
|
draw_functions::blend_buffer(
|
|
&mut line_buffer[span.pos.x as usize
|
|
..(span.pos.x_length() + span.size.width_length()).get() as usize],
|
|
color,
|
|
);
|
|
}
|
|
SceneCommand::Texture { texture_index } => {
|
|
let texture = &scene.textures[texture_index as usize];
|
|
draw_functions::draw_texture_line(
|
|
span,
|
|
scene.current_line,
|
|
texture,
|
|
&mut line_buffer,
|
|
);
|
|
}
|
|
SceneCommand::RoundedRectangle { rectangle_index } => {
|
|
let rr = &scene.rounded_rectangles[rectangle_index as usize];
|
|
draw_functions::draw_rounded_rectangle_line(
|
|
span,
|
|
scene.current_line,
|
|
rr,
|
|
&mut line_buffer,
|
|
);
|
|
}
|
|
}
|
|
}
|
|
span_drawing_profiler.stop(devices);
|
|
screen_fill_profiler.start(devices);
|
|
devices.fill_region(
|
|
euclid::rect(
|
|
dirty_region.origin.x,
|
|
scene.current_line.get() as i16,
|
|
dirty_region.size.width,
|
|
1,
|
|
),
|
|
&line_buffer[dirty_region.origin.x as usize
|
|
..(dirty_region.origin.x + dirty_region.size.width) as usize],
|
|
);
|
|
screen_fill_profiler.stop(devices);
|
|
line_processing_profiler.start(devices);
|
|
if scene.current_line < dirty_region.origin.y_length() + dirty_region.size.height_length() {
|
|
scene.next_line();
|
|
}
|
|
line_processing_profiler.stop(devices);
|
|
}
|
|
|
|
line_processing_profiler.stop_profiling(devices, "line processing");
|
|
span_drawing_profiler.stop_profiling(devices, "span drawing");
|
|
screen_fill_profiler.stop_profiling(devices, "screen fill");
|
|
}
|
|
|
|
struct Scene {
|
|
/// the next line to be processed
|
|
current_line: PhysicalLength,
|
|
|
|
/// The items are sorted like so:
|
|
/// - `items[future_items_index..]` are the items that have `y > current_line`.
|
|
/// They must be sorted by `y` (top to bottom), then by `z` (front to back)
|
|
/// - `items[..current_items_index]` are the items that overlap with the current_line,
|
|
/// sorted by z (front to back)
|
|
items: Vec<SceneItem>,
|
|
|
|
future_items_index: usize,
|
|
current_items_index: usize,
|
|
|
|
textures: Vec<SceneTexture>,
|
|
rounded_rectangles: Vec<RoundedRectangle>,
|
|
dirty_region: DirtyRegion,
|
|
}
|
|
|
|
impl Scene {
|
|
pub fn new(
|
|
mut items: Vec<SceneItem>,
|
|
textures: Vec<SceneTexture>,
|
|
rounded_rectangles: Vec<RoundedRectangle>,
|
|
dirty_region: DirtyRegion,
|
|
) -> Self {
|
|
let current_line = dirty_region.origin.y_length();
|
|
items.retain(|i| i.pos.y_length() + i.size.height_length() > current_line);
|
|
items.sort_unstable_by(|a, b| compare_scene_item(a, b));
|
|
let current_items_index = items.partition_point(|i| i.pos.y_length() <= current_line);
|
|
items[..current_items_index].sort_unstable_by(|a, b| b.z.cmp(&a.z));
|
|
Self {
|
|
items,
|
|
current_line,
|
|
current_items_index,
|
|
future_items_index: current_items_index,
|
|
textures,
|
|
rounded_rectangles,
|
|
dirty_region,
|
|
}
|
|
}
|
|
|
|
/// Updates `current_items_index` and `future_items_index` to match the invariant
|
|
pub fn next_line(&mut self) {
|
|
self.current_line += PhysicalLength::new(1);
|
|
|
|
// The items array is split in part:
|
|
// 1. [0..i] are the items that have already been processed, that are on this line
|
|
// 2. [j..current_items_index] are the items from the previous line that might still be
|
|
// valid on this line
|
|
// 3. [tmp1, tmp2] is a buffer where we swap items so we can make room for the items in [0..i]
|
|
// 4. [future_items_index..] are the items which might get processed now
|
|
// 5. [current_items_index..tmp1], [tmp2..future_items_index] and [i..j] is garbage
|
|
//
|
|
// At each step, we selecting the item with the higher z from the list 2 or 3 or 4 and take it from
|
|
// that list. Then we add it to the list [0..i] if it needs more processing. If needed,
|
|
// we move the first item from list 2. to list 3. to make some room
|
|
|
|
let (mut i, mut j, mut tmp1, mut tmp2) =
|
|
(0, 0, self.current_items_index, self.current_items_index);
|
|
|
|
'outer: loop {
|
|
let future_next_z = self
|
|
.items
|
|
.get(self.future_items_index)
|
|
.filter(|i| i.pos.y_length() <= self.current_line)
|
|
.map(|i| i.z);
|
|
let item = loop {
|
|
if tmp1 != tmp2 {
|
|
if future_next_z.map_or(true, |z| self.items[tmp1].z > z) {
|
|
let idx = tmp1;
|
|
tmp1 += 1;
|
|
if tmp1 == tmp2 {
|
|
tmp1 = self.current_items_index;
|
|
tmp2 = self.current_items_index;
|
|
}
|
|
break self.items[idx];
|
|
}
|
|
} else if j < self.current_items_index {
|
|
let item = &self.items[j];
|
|
if item.pos.y_length() + item.size.height_length() <= self.current_line {
|
|
j += 1;
|
|
continue;
|
|
}
|
|
if future_next_z.map_or(true, |z| item.z > z) {
|
|
j += 1;
|
|
break *item;
|
|
}
|
|
}
|
|
if future_next_z.is_some() {
|
|
self.future_items_index += 1;
|
|
break self.items[self.future_items_index - 1];
|
|
}
|
|
break 'outer;
|
|
};
|
|
if i != j {
|
|
// there is room
|
|
} else if j >= self.current_items_index && tmp1 == tmp2 {
|
|
// the current_items list is empty
|
|
j += 1
|
|
} else if self.items[j].pos.y_length() + self.items[j].size.height_length()
|
|
<= self.current_line
|
|
{
|
|
// next item in the current_items array is no longer in this line
|
|
j += 1;
|
|
} else if tmp2 < self.future_items_index && j < self.current_items_index {
|
|
// move the next item in current_items
|
|
let to_move = self.items[j];
|
|
self.items[tmp2] = to_move;
|
|
j += 1;
|
|
tmp2 += 1;
|
|
} else {
|
|
debug_assert!(tmp1 >= self.current_items_index);
|
|
let sort_begin = i;
|
|
// merge sort doesn't work because we don't have enough tmp space, just bring all items and use a normal sort.
|
|
while j < self.current_items_index {
|
|
let item = self.items[j];
|
|
if item.pos.y_length() + item.size.height_length() > self.current_line {
|
|
self.items[i] = item;
|
|
i += 1;
|
|
}
|
|
j += 1;
|
|
}
|
|
self.items.copy_within(tmp1..tmp2, i);
|
|
i += tmp2 - tmp1;
|
|
debug_assert!(i < self.future_items_index);
|
|
self.items[i] = item;
|
|
i += 1;
|
|
while self.future_items_index < self.items.len() {
|
|
let item = self.items[self.future_items_index];
|
|
if item.pos.y_length() > self.current_line {
|
|
break;
|
|
}
|
|
self.items[i] = item;
|
|
i += 1;
|
|
self.future_items_index += 1;
|
|
}
|
|
self.items[sort_begin..i].sort_unstable_by(|a, b| b.z.cmp(&a.z));
|
|
break;
|
|
}
|
|
self.items[i] = item;
|
|
i += 1;
|
|
}
|
|
self.current_items_index = i;
|
|
// check that current items are properly sorted
|
|
debug_assert!(self.items[0..self.current_items_index].windows(2).all(|x| x[0].z >= x[1].z));
|
|
}
|
|
}
|
|
|
|
#[derive(Clone, Copy, Debug)]
|
|
struct SceneItem {
|
|
pos: PhysicalPoint,
|
|
size: PhysicalSize,
|
|
// this is the order of the item from which it is in the item tree
|
|
z: u16,
|
|
command: SceneCommand,
|
|
}
|
|
|
|
fn compare_scene_item(a: &SceneItem, b: &SceneItem) -> core::cmp::Ordering {
|
|
// First, order by line (top to bottom)
|
|
match a.pos.y.partial_cmp(&b.pos.y) {
|
|
None | Some(core::cmp::Ordering::Equal) => {}
|
|
Some(ord) => return ord,
|
|
}
|
|
// Then by the reverse z (front to back)
|
|
match a.z.partial_cmp(&b.z) {
|
|
None | Some(core::cmp::Ordering::Equal) => {}
|
|
Some(ord) => return ord.reverse(),
|
|
}
|
|
|
|
// anything else, we don't care
|
|
core::cmp::Ordering::Equal
|
|
}
|
|
|
|
#[derive(Clone, Copy, Debug)]
|
|
#[repr(u8)]
|
|
enum SceneCommand {
|
|
Rectangle {
|
|
color: Color,
|
|
},
|
|
/// texture_index is an index in the Scene::textures array
|
|
Texture {
|
|
texture_index: u16,
|
|
},
|
|
/// rectangle_index is an index in the Scene::rounded_rectangle array
|
|
RoundedRectangle {
|
|
rectangle_index: u16,
|
|
},
|
|
}
|
|
|
|
struct SceneTexture {
|
|
data: &'static [u8],
|
|
format: PixelFormat,
|
|
/// bytes between two lines in the source
|
|
stride: u16,
|
|
source_size: PhysicalSize,
|
|
color: Color,
|
|
}
|
|
|
|
struct RoundedRectangle {
|
|
radius: PhysicalLength,
|
|
/// the border's width
|
|
width: PhysicalLength,
|
|
border_color: Color,
|
|
inner_color: Color,
|
|
/// The clips is the amount of pixels of the rounded rectangle that is clipped away.
|
|
/// For example, if left_clip > width, then the left border will not be visible, and
|
|
/// if left_clip > radius, then no radius will be seen in the left side
|
|
left_clip: PhysicalLength,
|
|
right_clip: PhysicalLength,
|
|
top_clip: PhysicalLength,
|
|
bottom_clip: PhysicalLength,
|
|
}
|
|
|
|
fn prepare_scene(
|
|
runtime_window: Rc<i_slint_core::window::Window>,
|
|
size: PhysicalSize,
|
|
devices: &dyn Devices,
|
|
cache: &mut PartialRenderingCache,
|
|
) -> Scene {
|
|
let prepare_scene_profiler = profiler::Timer::new(devices);
|
|
let mut compute_dirty_region_profiler = profiler::Timer::new_stopped();
|
|
let factor = ScaleFactor::new(runtime_window.scale_factor());
|
|
let prepare_scene = PrepareScene::new(size, factor, runtime_window.default_font_properties());
|
|
let mut renderer = i_slint_core::item_rendering::PartialRenderer::new(cache, prepare_scene);
|
|
|
|
runtime_window.draw_contents(|components| {
|
|
compute_dirty_region_profiler.start(devices);
|
|
for (component, origin) in components {
|
|
renderer.compute_dirty_regions(component, *origin);
|
|
}
|
|
compute_dirty_region_profiler.stop(devices);
|
|
for (component, origin) in components {
|
|
i_slint_core::item_rendering::render_component_items(component, &mut renderer, *origin);
|
|
}
|
|
});
|
|
let dirty_region = (euclid::Rect::from_untyped(&renderer.dirty_region.to_rect()) * factor)
|
|
.round_out()
|
|
.cast()
|
|
.intersection(&PhysicalRect { origin: euclid::point2(0, 0), size })
|
|
.unwrap_or_default();
|
|
prepare_scene_profiler.stop_profiling(devices, "prepare_scene");
|
|
compute_dirty_region_profiler.stop_profiling(devices, "+ dirty_region");
|
|
let prepare_scene = renderer.into_inner();
|
|
Scene::new(
|
|
prepare_scene.items,
|
|
prepare_scene.textures,
|
|
prepare_scene.rounded_rectangles,
|
|
dirty_region,
|
|
)
|
|
}
|
|
|
|
struct PrepareScene {
|
|
items: Vec<SceneItem>,
|
|
textures: Vec<SceneTexture>,
|
|
rounded_rectangles: Vec<RoundedRectangle>,
|
|
state_stack: Vec<RenderState>,
|
|
current_state: RenderState,
|
|
scale_factor: ScaleFactor,
|
|
default_font: FontRequest,
|
|
}
|
|
|
|
impl PrepareScene {
|
|
fn new(size: PhysicalSize, scale_factor: ScaleFactor, default_font: FontRequest) -> Self {
|
|
Self {
|
|
items: vec![],
|
|
rounded_rectangles: vec![],
|
|
textures: vec![],
|
|
state_stack: vec![],
|
|
current_state: RenderState {
|
|
alpha: 1.,
|
|
offset: LogicalPoint::default(),
|
|
clip: LogicalRect::new(LogicalPoint::default(), size.cast() / scale_factor),
|
|
},
|
|
scale_factor,
|
|
default_font,
|
|
}
|
|
}
|
|
|
|
fn should_draw(&self, rect: &LogicalRect) -> bool {
|
|
!rect.size.is_empty()
|
|
&& self.current_state.alpha > 0.01
|
|
&& self.current_state.clip.intersects(rect)
|
|
}
|
|
|
|
fn new_scene_rectangle(&mut self, geometry: LogicalRect, color: Color) {
|
|
self.new_scene_item(geometry, SceneCommand::Rectangle { color });
|
|
}
|
|
|
|
fn new_scene_texture(&mut self, geometry: LogicalRect, texture: SceneTexture) {
|
|
let texture_index = self.textures.len() as u16;
|
|
self.textures.push(texture);
|
|
self.new_scene_item(geometry, SceneCommand::Texture { texture_index });
|
|
}
|
|
|
|
fn new_scene_item(&mut self, geometry: LogicalRect, command: SceneCommand) {
|
|
let size = (geometry.size * self.scale_factor).cast();
|
|
if !size.is_empty() {
|
|
let z = self.items.len() as u16;
|
|
let pos = ((geometry.origin + self.current_state.offset.to_vector())
|
|
* self.scale_factor)
|
|
.cast();
|
|
self.items.push(SceneItem { pos, size, z, command });
|
|
}
|
|
}
|
|
|
|
fn draw_image_impl(
|
|
&mut self,
|
|
geom: LogicalRect,
|
|
source: &i_slint_core::graphics::Image,
|
|
source_clip: IntRect,
|
|
colorize: Color,
|
|
) {
|
|
let image_inner: &ImageInner = source.into();
|
|
match image_inner {
|
|
ImageInner::None => (),
|
|
ImageInner::AbsoluteFilePath(_) | ImageInner::EmbeddedData { .. } => {
|
|
unimplemented!()
|
|
}
|
|
ImageInner::EmbeddedImage(_) => todo!(),
|
|
ImageInner::StaticTextures(StaticTextures { size, data, textures, .. }) => {
|
|
let sx = geom.width() / (size.width as f32);
|
|
let sy = geom.height() / (size.height as f32);
|
|
for t in textures.as_slice() {
|
|
if let Some(dest_rect) = t.rect.intersection(&source_clip).and_then(|r| {
|
|
r.intersection(
|
|
&self
|
|
.current_state
|
|
.clip
|
|
.to_untyped()
|
|
.scale(1. / sx, 1. / sy)
|
|
.round_in()
|
|
.cast(),
|
|
)
|
|
}) {
|
|
let actual_x = dest_rect.origin.x - t.rect.origin.x;
|
|
let actual_y = dest_rect.origin.y - t.rect.origin.y;
|
|
let stride = t.rect.width() as u16 * bpp(t.format);
|
|
self.new_scene_texture(
|
|
LogicalRect::from_untyped(&dest_rect.cast().scale(sx, sy)),
|
|
SceneTexture {
|
|
data: &data.as_slice()[(t.index
|
|
+ (stride as usize) * (actual_y as usize)
|
|
+ (bpp(t.format) as usize) * (actual_x as usize))..],
|
|
stride,
|
|
source_size: PhysicalSize::from_untyped(dest_rect.size.cast()),
|
|
format: t.format,
|
|
color: if colorize.alpha() > 0 { colorize } else { t.color },
|
|
},
|
|
);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
}
|
|
}
|
|
|
|
#[derive(Clone, Copy)]
|
|
struct RenderState {
|
|
alpha: f32,
|
|
offset: LogicalPoint,
|
|
clip: LogicalRect,
|
|
}
|
|
|
|
impl i_slint_core::item_rendering::ItemRenderer for PrepareScene {
|
|
fn draw_rectangle(&mut self, rect: Pin<&i_slint_core::items::Rectangle>) {
|
|
let geom = LogicalRect::new(LogicalPoint::default(), rect.logical_geometry().size_length());
|
|
if self.should_draw(&geom) {
|
|
let geom = match geom.intersection(&self.current_state.clip) {
|
|
Some(geom) => geom,
|
|
None => return,
|
|
};
|
|
|
|
// FIXME: gradients
|
|
let color = rect.background().color();
|
|
if color.alpha() == 0 {
|
|
return;
|
|
}
|
|
self.new_scene_rectangle(geom, color);
|
|
}
|
|
}
|
|
|
|
fn draw_border_rectangle(&mut self, rect: Pin<&i_slint_core::items::BorderRectangle>) {
|
|
let geom = LogicalRect::new(LogicalPoint::default(), rect.logical_geometry().size_length());
|
|
if self.should_draw(&geom) {
|
|
let border = rect.border_width();
|
|
let radius = rect.border_radius();
|
|
// FIXME: gradients
|
|
let color = rect.background().color();
|
|
if radius > 0. {
|
|
if let Some(clipped) = geom.intersection(&self.current_state.clip) {
|
|
let geom2 = (geom * self.scale_factor).cast::<i16>();
|
|
let clipped2 = (clipped * self.scale_factor).cast::<i16>();
|
|
let rectangle_index = self.rounded_rectangles.len() as u16;
|
|
self.rounded_rectangles.push(RoundedRectangle {
|
|
radius: (LogicalLength::new(radius) * self.scale_factor).cast(),
|
|
width: (LogicalLength::new(border) * self.scale_factor).cast(),
|
|
border_color: rect.border_color().color(),
|
|
inner_color: color,
|
|
top_clip: PhysicalLength::new(clipped2.min_y() - geom2.min_y()),
|
|
bottom_clip: PhysicalLength::new(geom2.max_y() - clipped2.max_y()),
|
|
left_clip: PhysicalLength::new(clipped2.min_x() - geom2.min_x()),
|
|
right_clip: PhysicalLength::new(geom2.max_x() - clipped2.max_x()),
|
|
});
|
|
self.new_scene_item(
|
|
clipped,
|
|
SceneCommand::RoundedRectangle { rectangle_index },
|
|
);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if color.alpha() > 0 {
|
|
if let Some(r) =
|
|
geom.inflate(-border, -border).intersection(&self.current_state.clip)
|
|
{
|
|
self.new_scene_rectangle(r, color);
|
|
}
|
|
}
|
|
if border > 0.01 {
|
|
// FIXME: radius
|
|
// FIXME: gradients
|
|
let border_color = rect.border_color().color();
|
|
if border_color.alpha() > 0 {
|
|
let mut add_border = |r: LogicalRect| {
|
|
if let Some(r) = r.intersection(&self.current_state.clip) {
|
|
self.new_scene_rectangle(r, border_color);
|
|
}
|
|
};
|
|
add_border(euclid::rect(0., 0., geom.width(), border));
|
|
add_border(euclid::rect(0., geom.height() - border, geom.width(), border));
|
|
add_border(euclid::rect(0., border, border, geom.height() - border - border));
|
|
add_border(euclid::rect(
|
|
geom.width() - border,
|
|
border,
|
|
border,
|
|
geom.height() - border - border,
|
|
));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn draw_image(&mut self, image: Pin<&i_slint_core::items::ImageItem>) {
|
|
let geom =
|
|
LogicalRect::new(LogicalPoint::default(), image.logical_geometry().size_length());
|
|
if self.should_draw(&geom) {
|
|
self.draw_image_impl(
|
|
geom,
|
|
&image.source(),
|
|
euclid::rect(0, 0, i32::MAX, i32::MAX),
|
|
Default::default(),
|
|
);
|
|
}
|
|
}
|
|
|
|
fn draw_clipped_image(&mut self, image: Pin<&i_slint_core::items::ClippedImage>) {
|
|
// when the source_clip size is empty, make it full
|
|
let a = |v| if v == 0 { i32::MAX } else { v };
|
|
|
|
let geom =
|
|
LogicalRect::new(LogicalPoint::default(), image.logical_geometry().size_length());
|
|
if self.should_draw(&geom) {
|
|
self.draw_image_impl(
|
|
geom,
|
|
&image.source(),
|
|
euclid::rect(
|
|
image.source_clip_x(),
|
|
image.source_clip_y(),
|
|
a(image.source_clip_width()),
|
|
a(image.source_clip_height()),
|
|
),
|
|
image.colorize().color(),
|
|
);
|
|
}
|
|
}
|
|
|
|
fn draw_text(&mut self, text: Pin<&i_slint_core::items::Text>) {
|
|
let string = text.text();
|
|
if string.trim().is_empty() {
|
|
return;
|
|
}
|
|
let geom = LogicalRect::new(LogicalPoint::default(), text.logical_geometry().size_length());
|
|
if !self.should_draw(&geom) {
|
|
return;
|
|
}
|
|
|
|
let font_request = text.unresolved_font_request().merge(&self.default_font);
|
|
let font = crate::fonts::match_font(&font_request, self.scale_factor);
|
|
|
|
let color = text.color().color();
|
|
let max_size = (geom.size * self.scale_factor).cast();
|
|
|
|
let paragraph = TextParagraphLayout {
|
|
string: &string,
|
|
font: &font,
|
|
font_height: font.height(),
|
|
max_width: max_size.width_length(),
|
|
max_height: max_size.height_length(),
|
|
horizontal_alignment: text.horizontal_alignment(),
|
|
vertical_alignment: text.vertical_alignment(),
|
|
wrap: text.wrap(),
|
|
overflow: text.overflow(),
|
|
single_line: false,
|
|
};
|
|
|
|
paragraph.layout_lines(|glyphs, line_x, line_y| {
|
|
let baseline_y = line_y + font.ascent();
|
|
while let Some((glyph_baseline_x, glyph)) = glyphs.next() {
|
|
let bitmap_glyph = match glyph {
|
|
Some(g) => g,
|
|
None => continue,
|
|
};
|
|
if let Some(dest_rect) = (PhysicalRect::new(
|
|
PhysicalPoint::from_lengths(
|
|
line_x + glyph_baseline_x + bitmap_glyph.x(),
|
|
baseline_y - bitmap_glyph.y() - bitmap_glyph.height(),
|
|
),
|
|
bitmap_glyph.size(),
|
|
)
|
|
.cast()
|
|
/ self.scale_factor)
|
|
.intersection(&self.current_state.clip)
|
|
{
|
|
let stride = bitmap_glyph.width().get() as u16;
|
|
|
|
self.new_scene_texture(
|
|
dest_rect,
|
|
SceneTexture {
|
|
data: bitmap_glyph.data().as_slice(),
|
|
stride,
|
|
source_size: bitmap_glyph.size(),
|
|
format: PixelFormat::AlphaMap,
|
|
color,
|
|
},
|
|
);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
fn draw_text_input(&mut self, _text_input: Pin<&i_slint_core::items::TextInput>) {
|
|
// TODO
|
|
}
|
|
|
|
#[cfg(feature = "std")]
|
|
fn draw_path(&mut self, _path: Pin<&i_slint_core::items::Path>) {
|
|
// TODO
|
|
}
|
|
|
|
fn draw_box_shadow(&mut self, _box_shadow: Pin<&i_slint_core::items::BoxShadow>) {
|
|
// TODO
|
|
}
|
|
|
|
fn combine_clip(&mut self, other: RectF, _radius: f32, _border_width: f32) {
|
|
match self.current_state.clip.intersection(&LogicalRect::from_untyped(&other)) {
|
|
Some(r) => {
|
|
self.current_state.clip = r;
|
|
}
|
|
None => {
|
|
self.current_state.clip = LogicalRect::default();
|
|
}
|
|
};
|
|
// TODO: handle radius and border
|
|
}
|
|
|
|
fn get_current_clip(&self) -> i_slint_core::graphics::Rect {
|
|
self.current_state.clip.to_untyped()
|
|
}
|
|
|
|
fn translate(&mut self, x: f32, y: f32) {
|
|
self.current_state.offset.x += x;
|
|
self.current_state.offset.y += y;
|
|
self.current_state.clip = self.current_state.clip.translate((-x, -y).into())
|
|
}
|
|
|
|
fn rotate(&mut self, _angle_in_degrees: f32) {
|
|
todo!()
|
|
}
|
|
|
|
fn apply_opacity(&mut self, opacity: f32) {
|
|
self.current_state.alpha *= opacity;
|
|
}
|
|
|
|
fn save_state(&mut self) {
|
|
self.state_stack.push(self.current_state);
|
|
}
|
|
|
|
fn restore_state(&mut self) {
|
|
self.current_state = self.state_stack.pop().unwrap();
|
|
}
|
|
|
|
fn scale_factor(&self) -> f32 {
|
|
self.scale_factor.0
|
|
}
|
|
|
|
fn draw_cached_pixmap(
|
|
&mut self,
|
|
_item_cache: &i_slint_core::item_rendering::CachedRenderingData,
|
|
_update_fn: &dyn Fn(&mut dyn FnMut(u32, u32, &[u8])),
|
|
) {
|
|
todo!()
|
|
}
|
|
|
|
fn draw_string(&mut self, _string: &str, _color: Color) {
|
|
todo!()
|
|
}
|
|
|
|
fn window(&self) -> i_slint_core::window::WindowRc {
|
|
unreachable!("this backend don't query the window")
|
|
}
|
|
|
|
fn as_any(&mut self) -> &mut dyn core::any::Any {
|
|
self
|
|
}
|
|
}
|
|
|
|
/// bytes per pixels
|
|
fn bpp(format: PixelFormat) -> u16 {
|
|
match format {
|
|
PixelFormat::Rgb => 3,
|
|
PixelFormat::Rgba => 4,
|
|
PixelFormat::AlphaMap => 1,
|
|
}
|
|
}
|
|
/*
|
|
fn to_color(data: &[u8], format: PixelFormat, color: Color) -> Rgb888 {
|
|
match format {
|
|
PixelFormat::Rgba if color.alpha() > 0 => Rgb888::new(
|
|
((color.red() as u16 * data[3] as u16) >> 8) as u8,
|
|
((color.green() as u16 * data[3] as u16) >> 8) as u8,
|
|
((color.blue() as u16 * data[3] as u16) >> 8) as u8,
|
|
),
|
|
PixelFormat::Rgb => Rgb888::new(data[0], data[1], data[2]),
|
|
PixelFormat::Rgba => Rgb888::new(data[0], data[1], data[2]),
|
|
PixelFormat::AlphaMap => Rgb888::new(
|
|
((color.red() as u16 * data[0] as u16) >> 8) as u8,
|
|
((color.green() as u16 * data[0] as u16) >> 8) as u8,
|
|
((color.blue() as u16 * data[0] as u16) >> 8) as u8,
|
|
),
|
|
}
|
|
}*/
|
|
|
|
pub fn to_rgb888_color_discard_alpha(col: Color) -> Rgb888 {
|
|
Rgb888::new(col.red(), col.green(), col.blue())
|
|
}
|