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WindowServer: Implement simple window shadows

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This implements simple window shadows around most windows, including
tooltips. Because this method uses a bitmap for the shadow bits,
it is limited to rectangular window frames. For non-rectangular
window frames we'll need to implement a more sophisticated algorithm.
This commit is contained in:
Tom 2021-02-08 17:27:51 -07:00 • committed by Andreas Kling
parent 72fdab7bfb
commit 0ce4b9d7db
14 changed files with 234 additions and 70 deletions
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2
Userland/Libraries/LibGfx/Painter.h
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@ -70,7 +70,7 @@ public:
void draw_line(const IntPoint&, const IntPoint&, Color, int thickness = 1, LineStyle style = LineStyle::Solid);
void draw_quadratic_bezier_curve(const IntPoint& control_point, const IntPoint&, const IntPoint&, Color, int thickness = 1, LineStyle style = LineStyle::Solid);
void draw_elliptical_arc(const IntPoint& p1, const IntPoint& p2, const IntPoint& center, const FloatPoint& radii, float x_axis_rotation, float theta_1, float theta_delta, Color, int thickness = 1, LineStyle style = LineStyle::Solid);
void blit(const IntPoint&, const Gfx::Bitmap&, const IntRect& src_rect, float opacity = 1.0f);
void blit(const IntPoint&, const Gfx::Bitmap&, const IntRect& src_rect, float opacity = 1.0f, bool apply_alpha = true);
void blit_dimmed(const IntPoint&, const Gfx::Bitmap&, const IntRect& src_rect);
void blit_brightened(const IntPoint&, const Gfx::Bitmap&, const IntRect& src_rect);
void blit_filtered(const IntPoint&, const Gfx::Bitmap&, const IntRect& src_rect, Function<Color(Color)>);