rmx-19/Source/PluginEditor.h

#pragma once
#include <juce_gui_basics/juce_gui_basics.h>
#include "LcdPanel.h"
#include "PluginProcessor.h"
#include "BinaryData.h"

class RackEditor : public juce::AudioProcessorEditor, private juce::Timer
{
public:
    explicit RackEditor (RMX19AudioProcessor&);
    ~RackEditor() override;

    void paint (juce::Graphics&) override;
    void resized() override;

    bool keyPressed (const juce::KeyPress&) override;

private:
    RMX19AudioProcessor& proc;

    // one of the four wedge-shaped keys of the circular joystick ring. every wedge
    // component covers the whole ring bounding box and paints only its own sector,
    // so the ring centre is always at (outerR, outerR) in local coordinates.
    class DirWedge : public juce::Button
    {
    public:
        DirWedge (const juce::String& label, double centreAngleRad)
            : juce::Button (label), angle (centreAngleRad)
        { setWantsKeyboardFocus (true); setRepeatSpeed (320, 80); }
        void paintButton (juce::Graphics&, bool, bool) override;
        // all four wedges share the ring's bounding box, so the box alone would let the
        // topmost one swallow every click in the ring. restrict hits to this wedge's sector.
        bool hitTest (int x, int y) override;

        static constexpr float outerR = 66.0f;
        static constexpr float innerR = 24.0f;
        // half of a quadrant, minus a gap so neighbouring wedges read as separate keys
        static constexpr double halfSpan = 0.7156;

        double angle;   // radians clockwise from 12 o'clock
    };

    // the OK key sitting in the middle of the ring
    class CentreOkButton : public juce::Button
    {
    public:
explicit CentreOkButton (const juce::String& label) : juce::Button (label)
    { setWantsKeyboardFocus (true); }
        void paintButton (juce::Graphics&, bool, bool) override;
        // the key paints as a disc, so hit only the disc rather than its square bounds
        bool hitTest (int x, int y) override;

        static constexpr float radius = 21.0f;
    };

    // the separate ESC key, outside the ring at the bottom left
    class EscButton : public juce::Button
    {
    public:
        explicit EscButton (const juce::String& label) : juce::Button (label)
        { setWantsKeyboardFocus (true); }
        void paintButton (juce::Graphics&, bool, bool) override;
        bool hitTest (int x, int y) override;

        static constexpr float diameter = 30.0f;
    };

    DirWedge* up = nullptr;    DirWedge* down = nullptr;
    DirWedge* left = nullptr;  DirWedge* right = nullptr;
    CentreOkButton* okB = nullptr;
    EscButton* escB = nullptr;

    juce::ComboBox scaleBox;
    LcdPanel display;

    juce::Colour face;
    juce::Image backgroundImage;
    float powerPulse = 0.0f;
    float uiScale = 1.5f;

    static constexpr int baseW = 656, baseH = 248;

    void setScale (float s);
    void timerCallback() override;

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (RackEditor)
};