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Implement set_shadow_color, set_global_composition and stroke_rect

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Eijebong committed Aug 8, 2019
1 parent a9fd267 commit a28d00013c442076326eb1f5088f0f1ed9847413
Showing with 95 additions and 10 deletions.
  1. +95 −10 components/canvas/raqote_backend.rs
@@ -34,8 +34,8 @@ impl Backend for RaqoteBackend {
}
}

fn set_shadow_color<'a>(&mut self, _color: RGBA, _state: &mut CanvasPaintState<'a>) {
unimplemented!()
fn set_shadow_color<'a>(&mut self, color: RGBA, state: &mut CanvasPaintState<'a>) {
state.shadow_color = Color::Raqote(color.to_raqote_style());
}

fn set_fill_style<'a>(
@@ -62,10 +62,10 @@ impl Backend for RaqoteBackend {

fn set_global_composition<'a>(
&mut self,
_op: CompositionOrBlending,
_state: &mut CanvasPaintState<'a>,
op: CompositionOrBlending,
state: &mut CanvasPaintState<'a>,
) {
unimplemented!()
state.draw_options.as_raqote_mut().blend_mode = op.to_raqote_style();
}

fn create_drawtarget(&self, size: Size2D<u64>) -> Box<dyn GenericDrawTarget> {
@@ -168,6 +168,11 @@ impl DrawOptions {
DrawOptions::Raqote(options) => options,
}
}
fn as_raqote_mut(&mut self) -> &mut raqote::DrawOptions {
match self {
DrawOptions::Raqote(options) => options,
}
}
}

impl Path {
@@ -364,12 +369,24 @@ impl GenericDrawTarget for raqote::DrawTarget {
}
fn stroke_rect(
&mut self,
_rect: &Rect<f32>,
_pattern: Pattern,
_stroke_options: &StrokeOptions,
_draw_options: &DrawOptions,
rect: &Rect<f32>,
pattern: Pattern,
stroke_options: &StrokeOptions,
draw_options: &DrawOptions,
) {
unimplemented!();
let mut pb = raqote::PathBuilder::new();
pb.rect(
rect.origin.x,
rect.origin.y,
rect.size.width,
rect.size.height,
);

self.stroke(&pb.finish(),
pattern.as_raqote(),
stroke_options.as_raqote(),
draw_options.as_raqote(),
);
}
#[allow(unsafe_code)]
fn snapshot_data(&self, f: &dyn Fn(&[u8]) -> Vec<u8>) -> Vec<u8> {
@@ -534,3 +551,71 @@ impl Color {
}
}
}

impl ToRaqoteStyle for RGBA {
type Target = raqote::SolidSource;

fn to_raqote_style(self) -> Self::Target {
raqote::SolidSource {
r: self.red,
g: self.green,
b: self.blue,
a: self.alpha,
}
}
}

impl ToRaqoteStyle for CompositionOrBlending {
type Target = raqote::BlendMode;

fn to_raqote_style(self) -> Self::Target {
match self {
CompositionOrBlending::Composition(op) => op.to_raqote_style(),
CompositionOrBlending::Blending(op) => op.to_raqote_style(),
}
}
}

impl ToRaqoteStyle for BlendingStyle {
type Target = raqote::BlendMode;

fn to_raqote_style(self) -> Self::Target {
match self {
BlendingStyle::Multiply => raqote::BlendMode::Multiply,
BlendingStyle::Screen => raqote::BlendMode::Screen,
BlendingStyle::Overlay => raqote::BlendMode::Overlay,
BlendingStyle::Darken => raqote::BlendMode::Darken,
BlendingStyle::Lighten => raqote::BlendMode::Lighten,
BlendingStyle::ColorDodge => raqote::BlendMode::ColorDodge,
BlendingStyle::HardLight => raqote::BlendMode::HardLight,
BlendingStyle::SoftLight => raqote::BlendMode::SoftLight,
BlendingStyle::Difference => raqote::BlendMode::Difference,
BlendingStyle::Exclusion => raqote::BlendMode::Exclusion,
BlendingStyle::Hue => raqote::BlendMode::Hue,
BlendingStyle::Saturation => raqote::BlendMode::Saturation,
BlendingStyle::Color => raqote::BlendMode::Color,
BlendingStyle::Luminosity => raqote::BlendMode::Luminosity,
BlendingStyle::ColorBurn => unimplemented!("raqote doesn't support colorburn"),
}
}
}

impl ToRaqoteStyle for CompositionStyle {
type Target = raqote::BlendMode;

fn to_raqote_style(self) -> Self::Target {
match self {
CompositionStyle::SrcIn => raqote::BlendMode::SrcIn,
CompositionStyle::SrcOut => raqote::BlendMode::SrcOut,
CompositionStyle::SrcOver => raqote::BlendMode::SrcOver,
CompositionStyle::SrcAtop => raqote::BlendMode::SrcAtop,
CompositionStyle::DestIn => raqote::BlendMode::DstIn,
CompositionStyle::DestOut => raqote::BlendMode::DstOut,
CompositionStyle::DestOver => raqote::BlendMode::DstOver,
CompositionStyle::DestAtop => raqote::BlendMode::DstAtop,
CompositionStyle::Copy => raqote::BlendMode::Src,
CompositionStyle::Lighter => raqote::BlendMode::Add,
CompositionStyle::Xor => raqote::BlendMode::Xor,
}
}
}

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