juce_ColourSelector.h

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/*
  ==============================================================================
 
   This file is part of the JUCE library.
   Copyright (c) 2015 - ROLI Ltd.
 
   Permission is granted to use this software under the terms of either:
   a) the GPL v2 (or any later version)
   b) the Affero GPL v3
 
   Details of these licenses can be found at: www.gnu.org/licenses
 
   JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
 
   ------------------------------------------------------------------------------
 
   To release a closed-source product which uses JUCE, commercial licenses are
   available: visit www.juce.com for more information.
 
  ==============================================================================
*/
 
#ifndef JUCE_COLOURSELECTOR_H_INCLUDED
#define JUCE_COLOURSELECTOR_H_INCLUDED
 
 
//==============================================================================
class JUCE_API  ColourSelector  : public Component,
                                  public ChangeBroadcaster,
                                  protected SliderListener
{
public:
    //==============================================================================
    enum ColourSelectorOptions
    {
        showAlphaChannel    = 1 << 0,   
        showColourAtTop     = 1 << 1,   
        showSliders         = 1 << 2,   
        showColourspace     = 1 << 3    
    };
 
    //==============================================================================
    ColourSelector (int flags = (showAlphaChannel | showColourAtTop | showSliders | showColourspace),
                    int edgeGap = 4,
                    int gapAroundColourSpaceComponent = 7);
 
    ~ColourSelector();
 
    //==============================================================================
    Colour getCurrentColour() const;
 
    void setCurrentColour (Colour newColour);
 
    //==============================================================================
    virtual int getNumSwatches() const;
 
    virtual Colour getSwatchColour (int index) const;
 
    virtual void setSwatchColour (int index, const Colour& newColour) const;
 
 
    //==============================================================================
    enum ColourIds
    {
        backgroundColourId              = 0x1007000,    
        labelTextColourId               = 0x1007001     
    };
 
 
private:
    //==============================================================================
    class ColourSpaceView;
    class HueSelectorComp;
    class SwatchComponent;
    class ColourComponentSlider;
    class ColourSpaceMarker;
    class HueSelectorMarker;
    friend class ColourSpaceView;
    friend struct ContainerDeletePolicy<ColourSpaceView>;
    friend class HueSelectorComp;
    friend struct ContainerDeletePolicy<HueSelectorComp>;
 
    Colour colour;
    float h, s, v;
    ScopedPointer<Slider> sliders[4];
    ScopedPointer<ColourSpaceView> colourSpace;
    ScopedPointer<HueSelectorComp> hueSelector;
    OwnedArray<SwatchComponent> swatchComponents;
    const int flags;
    int edgeGap;
    Rectangle<int> previewArea;
 
    void setHue (float newH);
    void setSV (float newS, float newV);
    void updateHSV();
    void update();
    void sliderValueChanged (Slider*) override;
    void paint (Graphics&) override;
    void resized() override;
 
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ColourSelector)
 
   #if JUCE_CATCH_DEPRECATED_CODE_MISUSE
    // This constructor is here temporarily to prevent old code compiling, because the parameters
    // have changed - if you get an error here, update your code to use the new constructor instead..
    ColourSelector (bool);
   #endif
};
 
 
#endif   // JUCE_COLOURSELECTOR_H_INCLUDED