ofxOuiDropDown.hpp

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/*
 * ofxOuiDropDown.hpp
 *
 * Dropdown Menu
 *
 * 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 ofxOuiDropDown_hpp
#define ofxOuiDropDown_hpp

#include "ofxOuiButton.hpp"

namespace ofxOui {

class DropDown : public Component {
  public:
    class SelectEvent : public ofEventArgs {
      public:
        SelectEvent(DropDown *sender_, string text_);

        DropDown *sender;

        string text;
    };

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

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

    virtual ~DropDown();

    virtual void update();

    virtual void draw();

    vector<string> items;

  protected:
    void createSubGui();
    void mouseMoved(ofMouseEventArgs &e);
    void mouseDragged(ofMouseEventArgs &e);
    void mousePressed(ofMouseEventArgs &e);
    void mouseReleased(ofMouseEventArgs &e);

    bool mouse_moved_;
    bool clear_buttons_ = false;
    vector<shared_ptr<ofxOui::Button>> sub_buttons_;
    std::function<void(DropDown::SelectEvent &)> select_event_callback_;
};
}

#endif