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WindowServer: Add a more generic mechanism for animations

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This patch adds the WindowServer::Animation class, which represents
a simple animation driven by the compositor.

An animation has a length (in milliseconds) and two hooks:

- on_update: called whenever the animation should render something.
- on_stop: called when the animation is finished and/or stopped.

This patch also ports the window minimization animation to this new
mechanism. :^)
This commit is contained in:
Andreas Kling 2021-06-27 16:47:52 +02:00
parent 1f33c517df
commit 75f870a93f
7 changed files with 171 additions and 70 deletions
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9
Userland/Services/WindowServer/Compositor.h
View file

@ -16,6 +16,7 @@
namespace WindowServer {
class Animation;
class ClientConnection;
class Cursor;
class MultiScaleBitmaps;
@ -95,11 +96,12 @@ public:
const Gfx::Bitmap* cursor_bitmap_for_screenshot(Badge<ClientConnection>, Screen&) const;
const Gfx::Bitmap& front_bitmap_for_screenshot(Badge<ClientConnection>, Screen&) const;
void register_animation(Badge<Animation>, Animation&);
void unregister_animation(Badge<Animation>, Animation&);
private:
Compositor();
void init_bitmaps();
bool render_animation_frame(Screen&, Gfx::DisjointRectSet&);
void step_animations();
void invalidate_current_screen_number_rects();
void overlays_theme_changed();
@ -114,6 +116,7 @@ private:
bool any_opaque_window_above_this_one_contains_rect(const Window&, const Gfx::IntRect&);
void change_cursor(const Cursor*);
void flush(Screen&);
void update_animations(Screen&, Gfx::DisjointRectSet& flush_rects);
RefPtr<Core::Timer> m_compose_timer;
RefPtr<Core::Timer> m_immediate_compose_timer;
@ -195,6 +198,8 @@ private:
size_t m_show_screen_number_count { 0 };
Optional<Gfx::Color> m_custom_background_color;
HashTable<Animation*> m_animations;
};
}