ofxOuiBpf.hpp

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/*
 * ofxOuiBpf.hpp
 *
 * Breakpoint function component
 *
 * This code has been authored by Jules Francoise <jfrancoi@sfu.ca>
 * during his postdoc contract at Simon Fraser University (MovingStories
 * project).
 * See:
 *    http://julesfrancoise.com/
 *    http://movingstories.ca/
 *
 * Copyright (C) 2016 Jules Francoise.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#ifndef ofxOuiBpf_hpp
#define ofxOuiBpf_hpp

#include "ofxOuiComponent.hpp"
#include "ofxOuiGraph.hpp"

namespace ofxOui {

class Bpf : public Component {
  public:
    enum class Appearance {
        Lines,

        FillBottom,

        FillTop,

        FillZero
    };

    class EditPointEvent : public ofEventArgs {
      public:
        EditPointEvent(float x_, float y_);

        float x;

        float y;
    };

    Bpf(int x_ = 0, int y_ = 0, int width_ = 0, int height_ = 0);

    virtual ~Bpf();

    template <typename T, typename args, class ListenerClass>
    void onEditPoint(T *owner, void (ListenerClass::*listenerMethod)(args)) {
        using namespace std::placeholders;
        if (owner)
            callback_ = std::bind(listenerMethod, owner, _1);
        else
            callback_ = nullptr;
    }

    virtual void update();

    void clipBounds();

    vector<ofVec2f> values;

    Graph graph;

    Appearance appearance = Appearance::Lines;

    float point_radius = 8;

  protected:
    virtual void drawLabel();
    virtual void mousePressed(ofMouseEventArgs &e);
    virtual void mouseDragged(ofMouseEventArgs &e);
    virtual void mouseReleased(ofMouseEventArgs &e);

    int point_selected_;
    float time_mouse_pressed_;
    std::function<void(Bpf::EditPointEvent &)> callback_;
};
}

#endif