/*******************************************************************************
 The block below describes the properties of this PIP. A PIP is a short snippet
 of code that can be read by the Projucer and used to generate a JUCE project.

 BEGIN_JUCE_PIP_METADATA

  name:             Drag

  dependencies:     juce_core, juce_data_structures, juce_events, juce_graphics, juce_gui_basics
  exporters:        xcode_mac

  moduleFlags:      JUCE_STRICT_REFCOUNTEDPOINTER=1

  type:             Component
  mainClass:        Drag

 END_JUCE_PIP_METADATA

*******************************************************************************/

#pragma once

//________________________________________________________________________

class Constrainer : public ComponentBoundsConstrainer {

public:

    void setBounds(Rectangle<int> bounds) {
        this->bounds = bounds;
    }

    void checkBounds(juce::Rectangle<int> &current, const juce::Rectangle<int>& prev, const juce::Rectangle<int>& /**/, bool /**/, bool /**/, bool /**/, bool /**/) override {
        auto constrained = bounds.getConstrainedPoint(current.getCentre());
        current.setCentre(constrained);
    }

private:
    Rectangle<int> bounds;
};


//________________________________________________________________________


class Draggable : public Component {

public:

  void paint(Graphics& g) override {
      g.fillAll(Colours::white);
  }


  void mouseDown(const MouseEvent &e) {
      dragger.startDraggingComponent(this, e);
  }

  void mouseDrag(const MouseEvent &e) {
      dragger.dragComponent(this, e, &constrainer);
  }

  void setDragConstraints(Rectangle<int> constraints) {
      constrainer.setBounds(constraints);
  }

private:
  ComponentDragger dragger;
  Constrainer constrainer;
};


//________________________________________________________________________


class Drag : public Component
{

public:

    Drag() {
        draggable.setSize(50, 50);
        addAndMakeVisible(draggable);
        setSize (600, 400);
    }

    ~Drag() {
    }

    void paint (Graphics& g) override {
        g.fillAll(Colours::black);
    }

    void resized() {
        draggable.setDragConstraints(getLocalBounds());
    }

private:
    Draggable draggable;

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (Drag)
};