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Implement GenericPathBuilder for azure_hl::PathBuilder
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1 changed files with 105 additions and 1 deletions
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@ -2,7 +2,7 @@
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use azure::azure::{AzFloat, AzGradientStop, AzIntSize};
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use azure::azure::{AzFloat, AzGradientStop, AzIntSize, AzPoint};
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use azure::azure_hl;
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use azure::azure_hl::SurfacePattern;
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use azure::azure_hl::{AntialiasMode, AsAzurePoint, CapStyle, JoinStyle};
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@ -57,6 +57,110 @@ impl PathState {
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}
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}
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/// A generic PathBuilder that abstracts the interface for
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/// azure's and raqote's PathBuilder.
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trait GenericPathBuilder {
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fn arc(
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&self,
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origin: Point2D<f32>,
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radius: f32,
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start_angle: f32,
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end_angle: f32,
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anticlockwise: bool,
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);
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fn bezier_curve_to(
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&self,
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control_point1: &Point2D<f32>,
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control_point2: &Point2D<f32>,
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control_point3: &Point2D<f32>,
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);
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fn close(&self);
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fn ellipse(
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&self,
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origin: Point2D<f32>,
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radius_x: f32,
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radius_y: f32,
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rotation_angle: f32,
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start_angle: f32,
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end_angle: f32,
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anticlockwise: bool,
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);
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fn get_current_point(&self) -> Point2D<f32>;
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fn line_to(&self, point: Point2D<f32>);
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fn move_to(&self, point: Point2D<f32>);
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fn quadratic_curve_to(&self, control_point: &Point2D<f32>, end_point: &Point2D<f32>);
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}
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impl GenericPathBuilder for azure_hl::PathBuilder {
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fn arc(
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&self,
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origin: Point2D<f32>,
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radius: f32,
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start_angle: f32,
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end_angle: f32,
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anticlockwise: bool,
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) {
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self.arc(
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origin as Point2D<AzFloat>,
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radius as AzFloat,
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start_angle as AzFloat,
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end_angle as AzFloat,
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anticlockwise,
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);
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}
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fn bezier_curve_to(
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&self,
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control_point1: &Point2D<f32>,
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control_point2: &Point2D<f32>,
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control_point3: &Point2D<f32>,
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) {
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self.bezier_curve_to(
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control_point1 as &Point2D<AzFloat>,
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control_point2 as &Point2D<AzFloat>,
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control_point3 as &Point2D<AzFloat>,
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);
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}
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fn close(&self) {
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self.close();
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}
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fn ellipse(
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&self,
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origin: Point2D<f32>,
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radius_x: f32,
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radius_y: f32,
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rotation_angle: f32,
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start_angle: f32,
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end_angle: f32,
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anticlockwise: bool,
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) {
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self.ellipse(
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origin as Point2D<AzFloat>,
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radius_x as AzFloat,
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radius_y as AzFloat,
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rotation_angle as AzFloat,
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start_angle as AzFloat,
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end_angle as AzFloat,
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anticlockwise,
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);
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}
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fn get_current_point(&self) -> Point2D<f32> {
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let AzPoint { x, y } = self.get_current_point();
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Point2D::new(x as f32, y as f32)
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}
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fn line_to(&self, point: Point2D<f32>) {
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self.line_to(point as Point2D<AzFloat>);
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}
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fn move_to(&self, point: Point2D<f32>) {
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self.move_to(point as Point2D<AzFloat>);
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}
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fn quadratic_curve_to(&self, control_point: &Point2D<f32>, end_point: &Point2D<f32>) {
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self.quadratic_curve_to(
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control_point as &Point2D<AzFloat>,
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end_point as &Point2D<AzFloat>,
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);
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}
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}
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/// A wrapper around a stored PathBuilder and an optional transformation that should be
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/// applied to any points to ensure they are in the matching device space.
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struct PathBuilderRef<'a> {
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