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Add attributes for canvas shadows.

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This commit is contained in:
Hyowon Kim 2015-06-04 17:12:41 +09:00
parent 37fcced0fa
commit 473afdb196
15 changed files with 106 additions and 70 deletions
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30
components/canvas/canvas_paint_task.rs
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@ -2,7 +2,7 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use azure::azure::AzFloat;
use azure::azure::{AzFloat, AzColor};
use azure::azure_hl::{DrawTarget, SurfaceFormat, BackendType, StrokeOptions, DrawOptions, Pattern};
use azure::azure_hl::{ColorPattern, PathBuilder, DrawSurfaceOptions, Filter};
use azure::azure_hl::{JoinStyle, CapStyle, CompositionOp, AntialiasMode};
@ -171,6 +171,10 @@ struct CanvasPaintState<'a> {
stroke_opts: StrokeOptions<'a>,
/// The current 2D transform matrix.
transform: Matrix2D<f32>,
shadow_offset_x: f64,
shadow_offset_y: f64,
shadow_blur: f64,
shadow_color: AzColor,
}
impl<'a> CanvasPaintState<'a> {
@ -187,6 +191,10 @@ impl<'a> CanvasPaintState<'a> {
stroke_style: Pattern::Color(ColorPattern::new(color::black())),
stroke_opts: StrokeOptions::new(1.0, JoinStyle::MiterOrBevel, CapStyle::Butt, 10.0, &[]),
transform: Matrix2D::identity(),
shadow_offset_x: 0.0,
shadow_offset_y: 0.0,
shadow_blur: 0.0,
shadow_color: color::transparent(),
}
}
}
@ -257,6 +265,10 @@ impl<'a> CanvasPaintTask<'a> {
=> painter.get_image_data(dest_rect, canvas_size, chan),
Canvas2dMsg::PutImageData(imagedata, image_data_rect, dirty_rect)
=> painter.put_image_data(imagedata, image_data_rect, dirty_rect),
Canvas2dMsg::SetShadowOffsetX(value) => painter.set_shadow_offset_x(value),
Canvas2dMsg::SetShadowOffsetY(value) => painter.set_shadow_offset_y(value),
Canvas2dMsg::SetShadowBlur(value) => painter.set_shadow_blur(value),
Canvas2dMsg::SetShadowColor(rgba) => painter.set_shadow_color(rgba),
}
},
CanvasMsg::Common(message) => {
@ -582,6 +594,22 @@ impl<'a> CanvasPaintTask<'a> {
self.write_pixels(&imagedata, image_data_rect.size, source_rect, dest_rect, true)
}
fn set_shadow_offset_x(&mut self, value: f64) {
self.state.shadow_offset_x = value;
}
fn set_shadow_offset_y(&mut self, value: f64) {
self.state.shadow_offset_y = value;
}
fn set_shadow_blur(&mut self, value: f64) {
self.state.shadow_blur = value;
}
fn set_shadow_color(&mut self, value: AzColor) {
self.state.shadow_color = value;
}
}
/// Used by drawImage to get rid of the extra pixels of the image data that