AstralZX
89cbf733b3
Wraps wlroots' C ABI behind owning types (Display, Backend, Compositor, Output, XdgShell/Toplevel, Seat/Cursor/Keyboard, Scene/Node/Tree) with wl_signal -> std::function callbacks. Links the scenefx effect engine and ships a wlr::fx animation helper. Includes a runnable tinywl-style compositor and a scene/blur demo. License: AGPL-3.0-only.
53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
// SPDX-License-Identifier: AGPL-3.0-only
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#pragma once
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#include <cstdint>
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#include <type_traits>
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#include "wlr/scenefx/anim.hpp"
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#include "wlr/scene.hpp"
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#include "wlr/node.hpp"
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namespace wlr::fx {
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class Effect {
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public:
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Animated<>& position_x() { return m_x; }
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Animated<>& position_y() { return m_y; }
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Animated<>& scale() { return m_scale; }
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Animated<>& opacity() { return m_opacity; }
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void on_frame(std::uint64_t time) {
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m_x.on_frame(time);
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m_y.on_frame(time);
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m_scale.on_frame(time);
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m_opacity.on_frame(time);
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}
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void apply_to(Node& node) {
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node.set_position((int)m_x.value(), (int)m_y.value());
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if (node.type() != WLR_SCENE_NODE_BUFFER)
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return;
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Buffer b = node.as<Buffer>();
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b.set_opacity(m_opacity.value());
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const float s = m_scale.value();
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const int dw = b.raw()->dst_width;
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const int dh = b.raw()->dst_height;
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if (s != 1.0f && dw > 0 && dh > 0)
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b.set_dest_size((int)(s * dw), (int)(s * dh));
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}
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bool animating() const {
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return m_x.animating() || m_y.animating() ||
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m_scale.animating() || m_opacity.animating();
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}
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private:
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Animated<> m_x;
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Animated<> m_y;
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Animated<> m_scale{1.0f};
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Animated<> m_opacity{1.0f};
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};
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}
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