Ui.h

   1 /*
   2  * This file is part of NumptyPhysics
   3  * Copyright (C) 2008 Tim Edmonds
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 3 of the
   8  * License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  */
  16
  17 #ifndef UI_H
  18 #define UI_H
  19
  20 #include "Common.h"
  21
  22 #include <string>
  23 #include <SDL/SDL.h>
  24
  25 class Canvas;
  26 class Widget;
  27
  28 class WidgetParent
  29 {
  30  public:
  31   virtual void add( Widget* w )=0;
  32   virtual void remove( Widget* w )=0;
  33 };
  34
  35 class Widget
  36 {
  37  public:
  38   virtual ~Widget() {}
  39   virtual bool isDirty() {return false;}
  40   virtual Rect dirtyArea() {return Rect();};
  41   virtual void onTick( int tick ) {}
  42   virtual void draw( Canvas& screen, const Rect& area ) {};
  43   virtual bool handleEvent( SDL_Event& ev ) {return false;}
  44   void setParent(WidgetParent* p) {m_parent = p;}
  45   WidgetParent* parent() { return m_parent; }
  46  protected:
  47   WidgetParent* m_parent;
  48   Rect          m_pos;
  49 };
  50
  51 class Label : public Widget
  52 {
  53  public:
  54   Label();
  55   void text( std::string& s );
  56   void align( int a );
  57  private:
  58
  59 };
  60
  61 class Button : public Widget
  62 {
  63  public:
  64   Button();
  65 };
  66
  67 class Container : public Widget, public WidgetParent
  68 {
  69  public:
  70   Container();
  71
  72   virtual bool isDirty();
  73   virtual Rect dirtyArea();
  74   virtual void onTick( int tick );
  75   virtual void draw( Canvas& screen, const Rect& area );
  76   virtual bool handleEvent( SDL_Event& ev );
  77
  78   void add( Widget* w );
  79   virtual void remove( Widget* w );
  80 };
  81
  82
  83 class Layer : public Widget
  84 {
  85  public:
  86   virtual void onShow() {}
  87   virtual void onHide() {}
  88 };
  89
  90
  91 #endif //UI_H