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/*
* This file is part of din.
*
* din is copyright (c) 2006 - 2012 S Jagannathan <jag@dinisnoise.org>
* For more information, please visit http://dinisnoise.org
*
* din is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* din is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with din. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __widget
#define __widget
#include "box.h"
#include "color.h"
#include "point.h"
#include <vector>
#include <map>
#include <string>
#include <fstream>
extern int lmb;
struct ui;
struct widget;
struct mover {
widget& w; // target widget
int* pmb; // mouse button that moves widget
int mb_clicked; // is mouse button clicked
int move; // 1 - widget is moving, 0 - not
int prevx, prevy; // previous mouse position
mover (widget& ww, int* pb = &lmb);
int handle_input ();
};
typedef std::vector<widget *>::size_type size_vw;
class widget { // ui widget
std::string name; // name of this widget
box<int> extents; // extents of the bounding box around this widget
color clr; // color
int posx, posy; // position in screen space
int visible_; // visible?
int hover; // mouse over widget?
int enable_; // enabled?
std::vector <ui *> screens; // screens where shown
std::vector<widget *> children; // widget's children (ie other widgets; a gui hierarchy)
// helper to handle move with mouse
//
friend struct mover;
int moveable; // moveable?
mover movr; // handles move
public:
static widget* focus; // widget with input focus; only 1 at a time ie only 1 widget can receive input.
widget (int l = 0, int b = 0, int r = 0, int t = 0);
const std::string& get_name () {return name;}
void set_name (const std::string& _name) {name = _name;}
void add_child (widget *w); // n children
const box<int>& get_extents () const {return extents;}
void set_extents (int l, int b, int r, int t);
void set_extents (const box<int>& ext) { extents = ext;}
virtual void set_pos (int x, int y);
void get_pos (int& x, int& y);
int is_moveable () const {return moveable;}
void set_moveable (int m, int* pmb = &lmb) {moveable = m; movr.pmb = pmb;}
void move (int dx, int dy);
void set_color (float r, float g, float b) { clr.r = r; clr.g = g; clr.b = b; }
void set_color (const color& c) {clr.r = c.r; clr.g = c.g; clr.b = c.b; }
const color& get_color () const {return clr;}
inline int hovering () {return hover;}
void add_screen (ui* scr);
int is_screen (ui* scr);
const std::vector<ui*>& get_screens () const {return screens;}
int visible () const {return visible_;}
void show ();
void hide ();
void enable (int e) {enable_ = e;}
int enabled () const {return enable_;}
virtual int handle_input ();
virtual void draw ();
virtual void save (std::ofstream& file);
void draw_bbox ();
};
// listeners for widgets
//
template <typename W> struct change_listener {
virtual void changed (W& w) = 0;
};
#endif
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