/* ================================================================
GuiElement
----------------
This file describes the GuiElement class. This is the base class for further GUI Elements such as buttons, text input, or otherwise.
================================================================ */
#ifndef GUIELEMENT_HPP
#define GUIELEMENT_HPP
#include <string>
#include <vector>
#include "RenderObject.hpp"
#include "RenderView.hpp"
#include "RenderCamera.hpp"
class GuiElement {
  friend class Gui;
  public:
    enum Type {
      DEFAULT = 0,
      BUTTON,
      TEXT,
      TEXTINPUT,
      TEXTAREA,
      CHECKBOX,
      LIST
    };
    enum Position {
      VCENTER = (1 << 1),
      HCENTER = (1 << 2),
      LEFT = (1 << 3),
      RIGHT = (1 << 4),
      TOP = (1 << 5),
      BOTTOM = (1 << 6)
    };
    enum Flags {
      HIDDEN = (1 <<1)
    };
    GuiElement();
    GuiElement(const char *string);
    GuiElement(const char *string, GuiElement *parent_);
    GuiElement(const char *string, int group_id, int this_id);
    virtual ~GuiElement();
    //
    int setGeometry(float x, float y, float w, float h);
    // int setText(const char *string);
    GuiElement *getHit(float xhit, float yhit);
    int addChild(GuiElement *child);
    int setParent(GuiElement *parent);
    int setPFlags(int pflags);
    RenderView *getView();
    virtual int doUpdate(int c_width, int c_height);
    int doRender();
    float getWidth();
    float getHeight();
    void setSize(float width, float height);
    void setPosition(float newx, float newy);
    void setOffset(float offx, float offy);
    int getFlags();
    void hide();
    void show();
  protected:
    std::vector<GuiElement*> children; // children of this element
    RenderView *view;   // Ugh, we use FBOs for GUI elements cuz otherwise it's too annoying.
    GuiElement *parent; // parent of this element
    std::string text;   // text of this element
    int type;           // flag for this type
    int pflags;         // positioning flags
    int flags;          // flags
    int gid;            // group id for this element
    int id;             // id for this element
    RenderObject *object;// render object, as set by manager class, Gui
    //
    float x, y, w, h;   // position and dimensions for this element
    float offset_x, offset_y; // offset x and y
};
#endif