Carla/source/backend/native/3bandeq/DistrhoUI3BandEQ.cpp

/*
 * DISTRHO 3BandEQ Plugin, based on 3BandEQ by Michael Gruhn
 * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation.
 *
 * This program 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 Lesser General Public License for more details.
 *
 * For a full copy of the license see the LGPL.txt file
 */

#include "DistrhoUI3BandEQ.hpp"

START_NAMESPACE_DISTRHO

// -------------------------------------------------

DistrhoUI3BandEQ::DistrhoUI3BandEQ()
    : OpenGLExtUI()
{
    // background
    Image bgImage(DistrhoArtwork3BandEQ::backgroundData, DistrhoArtwork3BandEQ::backgroundWidth, DistrhoArtwork3BandEQ::backgroundHeight, GL_BGR);
    setBackgroundImage(bgImage);

    // sliders
    Image sliderImage(DistrhoArtwork3BandEQ::sliderData, DistrhoArtwork3BandEQ::sliderWidth, DistrhoArtwork3BandEQ::sliderHeight);
    Point sliderPosStart(57, 43);
    Point sliderPosEnd(57, 43 + 160);

    // slider Low
    sliderLow = new ImageSlider(sliderImage, sliderPosStart, sliderPosEnd);
    sliderLow->setRange(-24.0f, 24.0f);
    sliderLow->setValue(0.0f);
    addImageSlider(sliderLow);

    // slider Mid
    sliderPosStart.setX(120);
    sliderPosEnd.setX(120);
    sliderMid = new ImageSlider(sliderImage, sliderPosStart, sliderPosEnd);
    sliderMid->setRange(-24.0f, 24.0f);
    sliderMid->setValue(0.0f);
    addImageSlider(sliderMid);

    // slider High
    sliderPosStart.setX(183);
    sliderPosEnd.setX(183);
    sliderHigh = new ImageSlider(sliderImage, sliderPosStart, sliderPosEnd);
    sliderHigh->setRange(-24.0f, 24.0f);
    sliderHigh->setValue(0.0f);
    addImageSlider(sliderHigh);

    // slider Master
    sliderPosStart.setX(287);
    sliderPosEnd.setX(287);
    sliderMaster = new ImageSlider(sliderImage, sliderPosStart, sliderPosEnd);
    sliderMaster->setRange(-24.0f, 24.0f);
    sliderMaster->setValue(0.0f);
    addImageSlider(sliderMaster);

    // knobs
    Image knobImage(DistrhoArtwork3BandEQ::knobData, DistrhoArtwork3BandEQ::knobWidth, DistrhoArtwork3BandEQ::knobHeight);
    Point knobPos(66, 270);

    // knob Low-Mid
    knobLowMid = new ImageKnob(knobImage, knobPos);
    knobLowMid->setRange(0.0f, 1000.0f);
    knobLowMid->setValue(220.0f);
    addImageKnob(knobLowMid);

    // knob Mid-High
    knobPos.setX(160);
    knobMidHigh = new ImageKnob(knobImage, knobPos);
    knobMidHigh->setRange(1000.0f, 20000.0f);
    knobMidHigh->setValue(2000.0f);
    addImageKnob(knobMidHigh);

    // about button
    Image aboutImageNormal(DistrhoArtwork3BandEQ::aboutButtonNormalData, DistrhoArtwork3BandEQ::aboutButtonNormalWidth, DistrhoArtwork3BandEQ::aboutButtonNormalHeight);
    Image aboutImageHover(DistrhoArtwork3BandEQ::aboutButtonHoverData, DistrhoArtwork3BandEQ::aboutButtonHoverWidth, DistrhoArtwork3BandEQ::aboutButtonHoverHeight);
    Point aboutPos(264, 300);
    buttonAbout = new ImageButton(aboutImageNormal, aboutImageHover, aboutImageHover, aboutPos);
    addImageButton(buttonAbout);
}

DistrhoUI3BandEQ::~DistrhoUI3BandEQ()
{
    delete sliderLow;
    delete sliderMid;
    delete sliderHigh;
    delete sliderMaster;
    delete knobLowMid;
    delete knobMidHigh;
    delete buttonAbout;
}

// -------------------------------------------------
// DSP Callbacks

void DistrhoUI3BandEQ::d_parameterChanged(uint32_t index, float value)
{
    switch (index)
    {
    case DistrhoPlugin3BandEQ::paramLow:
        sliderLow->setValue(value);
        break;
    case DistrhoPlugin3BandEQ::paramMid:
        sliderMid->setValue(value);
        break;
    case DistrhoPlugin3BandEQ::paramHigh:
        sliderHigh->setValue(value);
        break;
    case DistrhoPlugin3BandEQ::paramMaster:
        sliderMaster->setValue(value);
        break;
    case DistrhoPlugin3BandEQ::paramLowMidFreq:
        knobLowMid->setValue(value);
        break;
    case DistrhoPlugin3BandEQ::paramMidHighFreq:
        knobMidHigh->setValue(value);
        break;
    }

    d_uiRepaint();
}

void DistrhoUI3BandEQ::d_programChanged(uint32_t index)
{
    if (index != 0)
        return;

    // Default values
    sliderLow->setValue(0.0f);
    sliderMid->setValue(0.0f);
    sliderHigh->setValue(0.0f);
    sliderMaster->setValue(0.0f);
    knobLowMid->setValue(220.0f);
    knobMidHigh->setValue(2000.0f);

    d_uiRepaint();
}

// -------------------------------------------------
// Extended Callbacks

void DistrhoUI3BandEQ::imageButtonClicked(ImageButton* button)
{
    if (button != buttonAbout)
        return;

    Image imageAbout(DistrhoArtwork3BandEQ::aboutData, DistrhoArtwork3BandEQ::aboutWidth, DistrhoArtwork3BandEQ::aboutHeight, GL_BGRA);
    showImageModalDialog(imageAbout, "About");
}

void DistrhoUI3BandEQ::imageKnobDragStarted(ImageKnob* knob)
{
    if (knob == knobLowMid)
        d_uiEditParameter(DistrhoPlugin3BandEQ::paramLowMidFreq, true);
    else if (knob == knobMidHigh)
        d_uiEditParameter(DistrhoPlugin3BandEQ::paramMidHighFreq, true);
}

void DistrhoUI3BandEQ::imageKnobDragFinished(ImageKnob* knob)
{
    if (knob == knobLowMid)
        d_uiEditParameter(DistrhoPlugin3BandEQ::paramLowMidFreq, false);
    else if (knob == knobMidHigh)
        d_uiEditParameter(DistrhoPlugin3BandEQ::paramMidHighFreq, false);
}


void DistrhoUI3BandEQ::imageKnobValueChanged(ImageKnob* knob, float value)
{
    if (knob == knobLowMid)
        d_setParameterValue(DistrhoPlugin3BandEQ::paramLowMidFreq, value);
    else if (knob == knobMidHigh)
        d_setParameterValue(DistrhoPlugin3BandEQ::paramMidHighFreq, value);
}

void DistrhoUI3BandEQ::imageSliderDragStarted(ImageSlider* slider)
{
    if (slider == sliderLow)
        d_uiEditParameter(DistrhoPlugin3BandEQ::paramLow, true);
    else if (slider == sliderMid)
        d_uiEditParameter(DistrhoPlugin3BandEQ::paramMid, true);
    else if (slider == sliderHigh)
        d_uiEditParameter(DistrhoPlugin3BandEQ::paramHigh, true);
    else if (slider == sliderMaster)
        d_uiEditParameter(DistrhoPlugin3BandEQ::paramMaster, true);
}

void DistrhoUI3BandEQ::imageSliderDragFinished(ImageSlider* slider)
{
    if (slider == sliderLow)
        d_uiEditParameter(DistrhoPlugin3BandEQ::paramLow, false);
    else if (slider == sliderMid)
        d_uiEditParameter(DistrhoPlugin3BandEQ::paramMid, false);
    else if (slider == sliderHigh)
        d_uiEditParameter(DistrhoPlugin3BandEQ::paramHigh, false);
    else if (slider == sliderMaster)
        d_uiEditParameter(DistrhoPlugin3BandEQ::paramMaster, false);
}

void DistrhoUI3BandEQ::imageSliderValueChanged(ImageSlider* slider, float value)
{
    if (slider == sliderLow)
        d_setParameterValue(DistrhoPlugin3BandEQ::paramLow, value);
    else if (slider == sliderMid)
        d_setParameterValue(DistrhoPlugin3BandEQ::paramMid, value);
    else if (slider == sliderHigh)
        d_setParameterValue(DistrhoPlugin3BandEQ::paramHigh, value);
    else if (slider == sliderMaster)
        d_setParameterValue(DistrhoPlugin3BandEQ::paramMaster, value);
}

// -------------------------------------------------

UI* createUI()
{
    return new DistrhoUI3BandEQ();
}

// -------------------------------------------------

END_NAMESPACE_DISTRHO