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JUCE/examples/PlugInSamples/GenericEditor.h

110 lines
3.5 KiB
C++

/*
==============================================================================
GenericEditor.h
Created: 23 Nov 2015 3:08:33pm
Author: Fabian Renn
==============================================================================
*/
class GenericEditor : public AudioProcessorEditor,
public SliderListener,
private Timer
{
public:
enum
{
kParamSliderHeight = 40,
kParamLabelWidth = 80,
kParamSliderWidth = 300
};
GenericEditor (AudioProcessor& parent)
: AudioProcessorEditor (parent),
noParameterLabel ("noparam", "No parameters available")
{
const OwnedArray<AudioProcessorParameter>& params = parent.getParameters();
for (int i = 0; i < params.size(); ++i)
{
if (const AudioParameterFloat* param = dynamic_cast<AudioParameterFloat*>(params[i]))
{
Slider* aSlider;
paramSliders.add (aSlider = new Slider (param->name));
aSlider->setRange (param->range.start, param->range.end);
aSlider->setSliderStyle (Slider::LinearHorizontal);
aSlider->setValue (dynamic_cast<const AudioProcessorParameter*>(param)->getValue());
aSlider->addListener (this);
addAndMakeVisible (aSlider);
Label* aLabel;
paramLabels.add (aLabel = new Label (param->name, param->name));
addAndMakeVisible (aLabel);
}
}
noParameterLabel.setJustificationType (Justification::horizontallyCentred | Justification::verticallyCentred);
noParameterLabel.setFont (noParameterLabel.getFont().withStyle (Font::italic));
setSize (kParamSliderWidth + kParamLabelWidth,
jmax (1, kParamSliderHeight * paramSliders.size()));
if (paramSliders.size() == 0)
addAndMakeVisible (noParameterLabel);
else
startTimer (100);
}
~GenericEditor()
{
}
void resized() override
{
Rectangle<int> r = getLocalBounds();
noParameterLabel.setBounds (r);
for (int i = 0; i < paramSliders.size(); ++i)
{
Rectangle<int> paramBounds = r.removeFromTop (kParamSliderHeight);
Rectangle<int> labelBounds = paramBounds.removeFromLeft (kParamLabelWidth);
paramLabels[i]->setBounds (labelBounds);
paramSliders[i]->setBounds (paramBounds);
}
}
void paint (Graphics& g) override
{
g.fillAll (Colours::white);
}
void sliderValueChanged (Slider* slider) override
{
const OwnedArray<AudioProcessorParameter>& params = getAudioProcessor()->getParameters();
int paramIndex = paramSliders.indexOf (slider);
if (paramIndex >= 0 && paramIndex < params.size())
params[paramIndex]->setValueNotifyingHost ((float) slider->getValue());
}
private:
void timerCallback() override
{
const OwnedArray<AudioProcessorParameter>& params = getAudioProcessor()->getParameters();
for (int i = 0; i < params.size(); ++i)
{
if (const AudioProcessorParameter* param = params[i])
{
if (i < paramSliders.size())
paramSliders[i]->setValue (param->getValue());
}
}
}
Label noParameterLabel;
OwnedArray<Slider> paramSliders;
OwnedArray<Label> paramLabels;
};