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Source/Components/FxChain.h

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+/*
+  ==============================================================================
+
+    FxChain.h
+    Created: 5 Jan 2024 3:26:37pm
+    Author:  binya
+
+  ==============================================================================
+*/
+
+#pragma once
+#include <JuceHeader.h>
+
+#include "../PluginProcessor.h"
+#include "../PluginParameters.h"
+#include "../Utilities/ComponentUtils.h"
+#include "FxModule.h"
+#include "FxDragTarget.h"
+#include "Displays/FilterResponse.h"
+#include "Displays/ReverbResponse.h"
+#include "Displays/DistortionVisualizer.h"
+#include "Displays/ChorusVisualizer.h"
+
+class FxChainShadows final : public CustomComponent
+{
+    void resized() override;
+    void paint(juce::Graphics& g) override;
+    void lookAndFeelChanged() override;
+
+    melatonin::InnerShadow innerShadow{
+        {defaultTheme.slate.withAlpha(0.25f), 3, {0, 2}},
+        {defaultTheme.slate.withAlpha(0.25f), 3, {0, -2}}
+    };
+    melatonin::DropShadow dragShadow{ defaultTheme.slate.withAlpha(0.125f), 3, {2, 2} };
+};
+
+/** The FX chain allows for drag and drop reordering of the effects modules. */
+class FxChain final : public CustomComponent, public FxDragTarget
+{
+public:
+    explicit FxChain(JustaSampleAudioProcessor& processor);
+    ~FxChain() override = default;
+
+    bool isChainDragging() const { return dragging; }
+    Component* getDragComp() const { return dragComp; }
+
+private:
+    void paint(juce::Graphics& g) override;
+    void resized() override;
+
+    void mouseDrag(const juce::MouseEvent& event) override;
+    void dragStarted(juce::Component* comp, const juce::MouseEvent& event) override;
+    void dragEnded() override;
+
+    void enablementChanged() override;
+
+    FxModule& getModule(PluginParameters::FxTypes type);
+
+    //==============================================================================
+    ReverbResponse reverbDisplay;
+    DistortionVisualizer distortionDisplay;
+    FilterResponse eqDisplay;
+    ChorusVisualizer chorusDisplay;
+
+    FxModule reverbModule, distortionModule, eqModule, chorusModule;
+
+    FxChainShadows shadows;
+
+    // Dragging functionality
+    juce::ParameterAttachment fxPermAttachment;
+    int oldVal{ 0 };
+    std::array<PluginParameters::FxTypes, 4> moduleOrder{};
+
+    bool dragging{ false };
+    PluginParameters::FxTypes dragTarget{ PluginParameters::REVERB };
+    Component* dragComp{ nullptr };
+    int dragCompIndex{ 0 };
+    int mouseX{ 0 };
+    int dragOffset{ 0 };
+
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (FxChain)
+};