juce_ColourSelector.h

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/*
  ==============================================================================
 
   This file is part of the JUCE library.
   Copyright (c) 2022 - Raw Material Software Limited
 
   JUCE is an open source library subject to commercial or open-source
   licensing.
 
   By using JUCE, you agree to the terms of both the JUCE 7 End-User License
   Agreement and JUCE Privacy Policy.
 
   End User License Agreement: www.juce.com/juce-7-licence
   Privacy Policy: www.juce.com/juce-privacy-policy
 
   Or: You may also use this code under the terms of the GPL v3 (see
   www.gnu.org/licenses).
 
   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.
 
  ==============================================================================
*/
 
namespace juce
{
 
//==============================================================================
class JUCE_API  ColourSelector  : public Component,
                                  public ChangeBroadcaster
{
public:
    //==============================================================================
    enum ColourSelectorOptions
    {
        showAlphaChannel    = 1 << 0,   
 
        showColourAtTop     = 1 << 1,   
        editableColour      = 1 << 2,   
        showSliders         = 1 << 3,   
        showColourspace     = 1 << 4    
    };
 
    //==============================================================================
    ColourSelector (int flags = (showAlphaChannel | showColourAtTop | showSliders | showColourspace),
                    int edgeGap = 4,
                    int gapAroundColourSpaceComponent = 7);

    ~ColourSelector() override;
 
    //==============================================================================
    Colour getCurrentColour() const;

    void setCurrentColour (Colour newColour, NotificationType notificationType = sendNotification);
 
    //==============================================================================
    virtual int getNumSwatches() const;

    virtual Colour getSwatchColour (int index) const;

    virtual void setSwatchColour (int index, const Colour& newColour);
 
 
    //==============================================================================
    enum ColourIds
    {
        backgroundColourId              = 0x1007000,    
        labelTextColourId               = 0x1007001     
    };
 
    //==============================================================================
    // These need to be public otherwise the Projucer's live-build engine will complain
    class ColourSpaceView;
    class HueSelectorComp;
    class ColourPreviewComp;
 
private:
    //==============================================================================
    class SwatchComponent;
 
    Colour colour;
    float h, s, v;
    std::unique_ptr<Slider> sliders[4];
    std::unique_ptr<ColourSpaceView> colourSpace;
    std::unique_ptr<HueSelectorComp> hueSelector;
    std::unique_ptr<ColourPreviewComp> previewComponent;
    OwnedArray<SwatchComponent> swatchComponents;
    const int flags;
    int edgeGap;
 
    void setHue (float newH);
    void setSV (float newS, float newV);
    void updateHSV();
    void update (NotificationType);
    void changeColour();
    void paint (Graphics&) override;
    void resized() override;
 
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ColourSelector)
};
 
} // namespace juce