SOLVED: Custom action when clicking slider's text box?

bvesco · 2017-05-01 04:50:02 UTC

I have a slider with a read-only text box. I’d still like to be able to perform a custom action when the text box is clicked. I can’t find a LookAndFeel, Component, or Slider method I could override or register to make this happen. Thoughts on how to make this happen?

daniel · 2017-05-01 14:25:02 UTC

The SliderLabelComp is the class to look for. It was introduced in LookAndFeel_V2 and is inherited to V3 and V4:

github.com

WeAreROLI/JUCE/blob/master/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel_V2.cpp#L1490




    p.addLineSegment (Line<float> (0.0f, 0.0f, 0.0f, -radius), rw * 0.2f);



    g.fillPath (p, AffineTransform::rotation (angle).translated (centreX, centreY));

}

}



Button* LookAndFeel_V2::createSliderButton (Slider&, const bool isIncrement)

{

return new TextButton (isIncrement ? "+" : "-", String());

}



class LookAndFeel_V2::SliderLabelComp  : public Label

{

public:

SliderLabelComp() : Label ({}, {}) {}



void mouseWheelMove (const MouseEvent&, const MouseWheelDetails&) override {}

};



Label* LookAndFeel_V2::createSliderTextBox (Slider& slider)

You can either override the SliderLabelComp, if the change of behaviour is in the Label only, or if you want to register a listener, you can override createSliderTextBox, where you have access to the created SliderLabelComp instance.

HTH

bvesco · 2017-05-03 05:33:30 UTC

Thanks!

The SliderLabelComp was private so I made my own class that derives from label. Then my override to createSliderTextBox returns my implementation instead of SliderLabelComp. In that class I do:

void mouseUp (const MouseEvent&) override

That’s where I can handle my mouseclick. Thanks for pointing me in the right direction!