DiscreteButtonView.h

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/*
 * Copyright (c) 2019 pongasoft
 *
 * Licensed under the Apache License, Version 2.0 or the MIT license,
 * at your option. You may not use this file except in compliance with
 * one of these licenses. You may obtain copies of the licenses at:
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 * https://opensource.org/licenses/MIT
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 *
 * @author Yan Pujante
 */
#pragma once
 
#include "CustomControlView.h"
 
namespace pongasoft::VST::GUI::Views {
 
using namespace VSTGUI;
using namespace Params;

class DiscreteButtonView : public CustomDiscreteControlView
{
public:
  explicit DiscreteButtonView(const CRect &iSize) : CustomDiscreteControlView(iSize)
  {
    // off color is grey
    fBackColor = CColor{200, 200, 200};
  }
 
  // draw => does the actual drawing job
  void draw(CDrawContext *iContext) override;
 
  // input events (mouse/keyboard)
  CMouseEventResult onMouseDown(CPoint &where, const CButtonState &buttons) override;
 
  CMouseEventResult onMouseUp(CPoint &where, const CButtonState &buttons) override;
 
  CMouseEventResult onMouseCancel() override;
 
  int32_t onKeyDown(VstKeyCode &keyCode) override;
 
  int32_t onKeyUp(VstKeyCode &keyCode) override;
 
  // sizeToFit
  bool sizeToFit() override;
 
  // is on or off
  bool isOn() const;
 
  bool isOff() const { return !isOn(); }
 
  void setOn();

  int getFrames() const { return fFrames; }
 
  void setFrames(int iFrames);

  CColor const &getOnColor() const { return fOnColor; }
 
  void setOnColor(CColor const &iColor) { fOnColor = iColor; }

  bool getInverse() const { return fInverse; }

  void setInverse(bool iInverse) { fInverse = iInverse; }

  int32 getStep() const { return fStep; }
  void setStep(int32 step);

  BitmapPtr getImage() const { return fImage; }
  void setImage(BitmapPtr iImage) { fImage = iImage; }
 
  void registerParameters() override;
 
protected:
  int fFrames{4};
  CColor fOnColor{kRedCColor};
  BitmapSPtr fImage{nullptr};
  bool fInverse{false};
 
  bool fPressed{false};
 
  int32 fStep{0};
 
public:
  class Creator : public CustomViewCreator<DiscreteButtonView, CustomDiscreteControlView>
  {
  public:
    explicit Creator(char const *iViewName = nullptr, char const *iDisplayName = nullptr) :
      CustomViewCreator(iViewName, iDisplayName)
    {
      registerIntAttribute("frames", &DiscreteButtonView::getFrames, &DiscreteButtonView::setFrames);
      registerColorAttribute("on-color", &DiscreteButtonView::getOnColor, &DiscreteButtonView::setOnColor);
      registerBitmapAttribute("button-image", &DiscreteButtonView::getImage, &DiscreteButtonView::setImage);
      registerBooleanAttribute("inverse", &DiscreteButtonView::getInverse, &DiscreteButtonView::setInverse);
      registerIntegerAttribute<int32>("step", &DiscreteButtonView::getStep, &DiscreteButtonView::setStep);
    }
  };
};
 
}