POUI - Processing Object User Interface is a barebone UI library that makes mouse-interactions with objects easy.
You can install the latest version of POUI from within Processing via the menus Sketch > Import Library… > Add Library…
POUI consists of two interface classes Renderable and Touchable and a bit of glue code you have to implement.
Make sure your interactable object implements both interfaces and also add it to your POUI instance.
void setup() {
OUI p = new OUI(this);
MyObject o = new MyObject();
p.addRenderable(o);
p.addTouchable(o);
}
void draw() {
p.render();
}
These are the interface methods you have to implement.
Look at the example code in the processing examples menu under File > Examples > Contributed Libraries > Processing Object User Interface
void render();
// in here goes your render code for your object.
void applyTransformation(PGraphics _c);
// apply global opengl transformation before render
void renderToTouchSurface(PGraphics context, int actionIndex, int color);
// here you render hidden surface which will be touchable later.
// it is recommended to use same shapes at same positions as in your render() code.
void onHover(int actionIndex, boolean in);
// called when the mouse hovers over a touchable surface.
void onClick(int actionIndex, boolean in);
// called when a touchable surface is clicked.
void onDrag(int actionIndex, boolean in);
// called when a touchable surface is dragged.