Preset Button

1

I everyboby,
I can’t figure out how to find the way to set sliders range from clicking a Button.
I’m trying to do like a preset Button but as you can see i’m new at programing and i keep missing terms :wink: would anybody got a clue? thanks :wink:

2

There’s two ways you can listen to button presses.

The first is to register as a juce::Button::Listener, like so:

class MyComponent : public juce::Component,
                    public juce::Button::Listener
{
public:
    MyComponent()
    {
        addAndMakeVisible(m_button);
        m_button.addListener(this);
    }

private:
    void buttonClicked(juce::Button* buttonThatWasClicked) override
    {
        if (buttonThatWasClicked == &m_button)
        {
            // Set slider's range here.
        }
    }

    juce::TextButton m_button {"Click Me!"};
    juce::Slider m_slider;
};

The second way is to assign a lambda to the button’s onClick method, like so:

class MyComponent : public juce::Component
{
public:
    MyComponent()
    {
        addAndMakeVisible(m_button);
        m_button.onClick = [this]() {
            // Set slider range here.
        };
    }

    juce::TextButton m_button {"Click Me!"};
    juce::Slider m_slider;
};

As for setting the slider’s range, you can do so by calling setRange on the slider and passing in the min and max values, and optionally a third argument for the interval:

const auto min = 0.0;
const auto max = 10.0;
const auto interval = 0.1;

m_slider.setRange (min, max, interval);

If you then want to set the slider’s current value, call setValue():

m_slider.setValue (5.0);
1 Like
3

Brilliant! Thanks a lot Jimmi.