2a8ebc4906
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
#pragma once
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#include <mln/shaders/layer_ubo.hpp>
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#include <mln/shaders/shader_source.hpp>
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#include <mln/util/immutable.hpp>
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#include <mln/util/containers.hpp>
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#include <mln/util/mat4.hpp>
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#include <array>
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#include <memory>
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#include <string>
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namespace mln {
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namespace gfx {
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class Drawable;
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class UniformBuffer;
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using UniformBufferPtr = std::shared_ptr<UniformBuffer>;
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} // namespace gfx
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namespace style {
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class LayerProperties;
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enum class TranslateAnchorType : bool;
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} // namespace style
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class LayerGroupBase;
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class PaintParameters;
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class RenderTree;
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class TransformState;
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class UnwrappedTileID;
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/**
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Base class for layer tweakers, which manipulate layer group per frame
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*/
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class LayerTweaker {
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protected:
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LayerTweaker(std::string id, Immutable<style::LayerProperties> properties);
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public:
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LayerTweaker() = delete;
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virtual ~LayerTweaker() = default;
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const std::string& getID() const { return id; }
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virtual void execute(LayerGroupBase&, const PaintParameters&) = 0;
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void updateProperties(Immutable<style::LayerProperties>);
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/// Calculate matrices for this tile.
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/// @param nearClipped If true, the near plane is moved further to enhance depth buffer precision.
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/// @param inViewportPixelUnits If false, the translation is scaled based on the current zoom.
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static mat4 getTileMatrix(const UnwrappedTileID&,
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const PaintParameters&,
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const std::array<float, 2>& translation,
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style::TranslateAnchorType,
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bool nearClipped,
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bool inViewportPixelUnits,
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const gfx::Drawable& drawable,
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bool aligned = false);
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protected:
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/// Determine whether this tweaker should apply to the given drawable
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bool checkTweakDrawable(const gfx::Drawable&) const;
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/// Multiplies with the projection matrix (either default, near clipped or aligned) for the given drawable
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static void multiplyWithProjectionMatrix(/*in-out*/ mat4& matrix,
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const PaintParameters& parameters,
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const gfx::Drawable& drawable,
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bool nearClipped,
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bool aligned);
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std::string id;
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Immutable<style::LayerProperties> evaluatedProperties;
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// Indicates that the evaluated properties have changed
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bool propertiesUpdated = true;
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};
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} // namespace mln
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